High-dosage estrogens

High-definition television in the United States of America

High-definition television in the United States

A high-field domain is a band of elevated field orthogonal to the equi-current lines and seen in photoconductive CdS and monochromatic light at the band edge as dark band was discovered by Böer, using the Franz-Keldysh effect. Such domains must appear whenever the conductivity decreases stronger than linearly. This can be caused by the field dependence of the carrier density, as observed in copper-doped CdS caused by Frenkel Poole excitation of holes, causing faster electron recombination, known as field quenching. These high-field domains, now referred to as Böer domains, or by field dependence of the mobility, caused by excitation of electrons into higher conduction bands with lower mobility as observed in GaAs, called the Gunn effect. The high-field domains can be identified by periodical field oscillations between high (the domain) and low values, as shown in Fig. 1.Many other crystals show such domains by typical current oscillations. The high-field domains in copper doped CdS can be easily observed by the Franz-Keldysh effect as stationary, adjacent to the cathode or moving. These are analyzed as another example below.Theory: Stationary high-field domains can be analyzed from the transport- and Poisson equations: d n d x = e k T ( j e μ − n F ) {\displaystyle {\frac {dn}{dx}}={\frac {e}{kT}}\left({\frac {j}{e\mu }}-nF\right)} and d F d x = e ϵ ϵ 0 ( n − n a ) {\displaystyle {\frac {dF}{dx}}={\frac {e}{\epsilon \epsilon _{0}}}\left(n-n_{a}\right)} The projection of any solution curves into an arbitrary nF plane can be filled with direction arrows at any point of this plane. Two auxiliary curves for which dn/dx = 0, called n2(F) and dF/dx = 0 called n1(F) divide this plane into four quadrants with the same type of directions. This is shown in Fig. 2(left) in a double logarithmic representation. Any solution of an n-type semiconductor with blocking cathode must start at the boundary density nc that is below the density in the bulk, and approaches the singular point at which dn/dx = dF/dx = 0, that is in the bulk where both n(x) and F(x) are constant. The solution curve represents a Schottky-blocking contact as shown in Fig. 2(B), curve (a).When n(x) decreases at higher fields due to field-quenching cause by Poole-Frenkel excitation of holes from Coulomb attractive hole traps, that consequently enhances electron recombination through recombination centers, and thereby deforms the n1(x) curve at higher fields as shown in Fig. 2(B). When the bias is increased the current curve n2(x) is shifted upwards and to the right, and when it crosses n1(x) again, it produces a second singular point II. With further increased bias this singular point II reaches the value of the boundary density nc, and the solution curve changes from a monotonic increasing Schottky-solution, to a high-field domain, curve (b): that remains constant near the cathode, and then changes within a few Debye lengths to approach the constant value in the bulk, near the singular point I. The width of the domain increases with bias (Fig. 3a), while the current remains constant (Fig. 3c). The domain is visible as dark part in the transmission picture through the CdS platelett, extending from the cathode as shown in Fig. 3a. The field in the domain can be obtained from the slope of the domain that increases with bias (Fig. 3b).When, with further increased bias the domain fills the entire sample,then it flips to an anode adjacent high-field domain (Fig. 4b). The field at the cathode is now much higher than for the cathode adjacent domain (Fig. 4b and c), while the current still remains essentially constant (Fig. 4c).High-field domains to determine the work function of blocking contactsSince the high field domain starts at the electron density given by the work-function at the cathode and pulls the Schottky barrier open to a constant field in the domain, this work function can be determined precisely, and it can be used as a tool to determine the changes of the work function, as it varies depending on external parameters. As an example, it can be shown that it depends on the optical excitation in a photoconductor (See Fig. 5).High-field domains as tools to measure the electron density in the field quenched branch and of the electron mobility as a function of the temperatureThe high-field domain is determined by the boundary density at the cathode and the field within the domain. A shadow band in front of the cathode acts as a pseudo-cathode, as it reduces the electron density within the shadow (Fig. 6). This can be used as an experimental tool to change the boundary density as a function of the light intensity within the shadow.This permits to measure directly the electron density in the field-quenched range, using different pseudo-electron densities, causing a shift of the singular point, and measuring the domain field.The electron Hall mobility can be measured by placing the CdS platelett in a magnet and applying a bias sufficient to create a high-field domain. When the domain is extended to include the Hall electrodes one can determine the Hall mobility within the domain. Different fields in the high-field domain are achieved by using different samples or different cathode metals.Stationary domains to explain efficiency improvement of CdTe solar cells with a thin CdS cover layerThe application of a 200Å thick copper doped layer of CdS on top of a typically 2 μm thick CdTe solar cell, increases the open circuit voltage substantially, so that it can reach the theoretical limit of the band gap of the CdTe-emitter when extrapolated to 0 K. This improvement can be explained by limiting the field in the CdS side of the junction when it reaches the critical value for a high-field domain to appear and thereby limits the maximum junction field to the domain field of typical 50 kV/cm. This field is below a field in which electron leaking from the CdS into CdTe occurs, resulting in an increase of the open circuit voltage and thereby an increase of the solar cell conversion efficiency.Moving high-field domains in copper-doped CdS with a small circular cathodeThe domains started from the cathode, separates and, with increasing bias increases its radius. When the anode is reached the ring disappeared and a new domain grows from the cathode. The process repeated itself with a period of 10 sec (Fig. 7).Such undeformed moving domains in crystals with slit electrodes are bands parallel to the electrodes, and seen by the oscillating field, when plotted in a x,F,t diagram give the optical impression of bifurcation (Fig. 8).Such moving high-field domains are measured in p-Ge with (a) local voltage (b) field- and (c) carrier density oscillation (Fig. 9).Undeformed moving high-field domains and domains with deformation (Chaos) are observed in many other crystals, and also in nanocrystals or superlatices. However, because of the small size they can only be analyzed by the changing shape of the current-voltage characteristics.Böer domainsThe high-field domains were renamed Böer domains at the 50th anniversary of their discovery.The Benefits of the High-Field DomainsCopper-doped photoconductive CdS shows high-field domains when at sufficient bias and with blocking contacts these domains remain attached to the contacts. The field within the domain is constant and the current is by drift only. With increased bias the domain width increases. When it reaches both electrodes the entire crystal becomes space-charge free (this is one more example at which an interaction vanishes: for the interaction of electrons with phonons, superconductivity results; from the interaction of photons with phonons, lasers can be produced). This gives the opportunity to measure the spectral distribution of defect levels free of interaction of the broadening electric field surrounding the defects. A first example is shown by the extremely sharp quenching spectrum of a CdS crystal that has been inverted to become p-type with a high-field-domain (Fig. 10)Another benefit of the high-field domain is the direct connection of any p-type emitter through a copper-doped thin CdS layer directly to an electron-blocking electrode through which the holes are extracted, and the open circuit voltage is increased to approach the theoretical limit of the band gap or the emitter at 0K. Because in the CdS the hole current is now carried by drift only, we can finally draw the band model of a typical solar cell. e.g. the CdS/CdTe cell as given in Fig. 11. For the first time we can replace the estimate of the band connection of abrupt hetero-junctions from the difference of electron affinities by calculating it from the continuity of the majority carrier current, with the only small discontinuity left by the difference of the effective masses of the carriers at the different carrier bands.

High-definition television system

High-explosive squash head (HESH) is a type of explosive ammunition that is effective against tank armour and is also useful against buildings. It was fielded chiefly by the British Army as the main explosive round of its main battle tanks during the Cold War. It was also used by other military forces, particularly those that acquired the early post-World War 2 British 105 mm Royal Ordnance L7A1, including Germany, India, Israel and Sweden. In the United States, it is known as HEP, for "high explosive, plastic".

High-billed Crow

The high-level equilibrium trap is a concept developed by environmental historian Mark Elvin to explain why China never underwent an indigenous Industrial Revolution, despite its wealth, stability, and high level of scientific achievement. Essentially, he claims that the Chinese pre-industrial economy had reached an equilibrium point where supply and demand were well-balanced.

A high-intensity radiated field (HIRF) is radio-frequency energy of a strength sufficient to adversely affect either a living organism or the performance of a device subjected to it. A microwave oven is an example of this principle put to controlled, safe use. Radio-frequency (RF) energy is non-ionizing electromagnetic radiation – its effects on tissue are through heating.

High-level-architecture

High-altitude frog

High-grade nucleus

High-content screening (HCS), also known as high-content analysis (HCA) or cellomics, is a method that is used in biological research and drug discovery to identify substances such as small molecules, peptides, or RNAi that alter the phenotype of a cell in a desired manner. Hence high content screening is a type of phenotypic screen conducted in cells.

High-Altitude Pulmonary Oedema

High-availability clusters (also known as HA clusters or fail-over clusters) are groups of computers that support server applications that can be reliably utilized with a minimum amount of down-time. They operate by using high availability software to harness redundant computers in groups or clusters that provide continued service when system components fail. Without clustering, if a server running a particular application crashes, the application will be unavailable until the crashed server is fixed. HA clustering remedies this situation by detecting hardware/software faults, and immediately restarting the application on another system without requiring administrative intervention, a process known as failover. As part of this process, clustering software may configure the node before starting the application on it. For example, appropriate file systems may need to be imported and mounted, network hardware may have to be configured, and some supporting applications may need to be running as well.HA clusters are often used for critical databases, file sharing on a network, business applications, and customer services such as electronic commerce websites.HA cluster implementations attempt to build redundancy into a cluster to eliminate single points of failure, including multiple network connections and data storage which is redundantly connected via storage area networks.HA clusters usually use a heartbeat private network connection which is used to monitor the health and status of each node in the cluster. One subtle but serious condition all clustering software must be able to handle is split-brain, which occurs when all of the private links go down simultaneously, but the cluster nodes are still running. If that happens, each node in the cluster may mistakenly decide that every other node has gone down and attempt to start services that other nodes are still running. Having duplicate instances of services may cause data corruption on the shared storage.HA clusters often also use quorum witness storage (local or cloud) to avoid this scenario. A witness device cannot be shared between two halves of a split cluster, so in the event that all cluster members cannot communicate with each other (e.g., failed heartbeat), if a member cannot access the witness, it cannot become active.

High-bypass turbofan engine

High-availability cluster

In warfare, High-explosive incendiary (HEI) is a type of ammunition specially designed to impart energy and therefore damage to its target in one or both of two ways: via a high-explosive charge and/or via its incendiary (fire-causing) effects. Each round has both capabilities.HEI ammunition is fused either mechanically or chemically. The armor-piercing ability can vary widely, allowing for more focused fragmentation or larger scatter.

The high-level equilibrium trap is a concept developed by environmental historian Mark Elvin to explain why China never underwent an indigenous Industrial Revolution, despite its wealth, stability, and high level of scientific achievement. Essentially, he claims that the Chinese pre-industrial economy had reached an equilibrium point where supply and demand were well-balanced. Late imperial production methods and trade networks were so efficient and labor was so cheap that investment in capital to improve efficiency would not be profitable.At the same time, an intellectual paradigm shift from Taoism to Confucianism among the intelligentsia moved the focus of academic inquiry from natural science and mathematics, which were conceived of under Taoism as investigations into the mystical nature of the universe, to studies of social philosophy and morality under Confucianism. According to Elvin, this produced an intellectual climate that was not conducive to technical innovation.By comparison, the economy of Great Britain at the time of the Industrial Revolution was vastly smaller and less efficient than the late imperial Chinese economy. Labor was comparatively more expensive, and internal trade far less efficient than in China. This produced large imbalances in the forces of supply and demand, leading to economic problems which provided a large financial incentive for the creation of scientific and engineering advances designed to address them. At the same time, the Enlightenment had shifted the focus of academic inquiry towards natural sciences, providing the basis for many technical innovations.

High-dimensional spaces

High-definition metrology

High-density lipoproteins (HDL)

High-efficiency particulate air

High-frequency micro-ultrasound

The High-Z Supernova Search Team was an international cosmology collaboration which used Type Ia supernovae to chart the expansion of the universe. The team was formed in 1994 by Brian P. Schmidt, then a post-doctoral research associate at Harvard University, and Nicholas B. Suntzeff, a staff astronomer at the Cerro Tololo Inter-American Observatory (CTIO) in Chile. The original team first proposed for the research on September 29, 1994 in a proposal called A Pilot Project to Search for Distant Type Ia Supernova to the CTIO Inter-American Observatory. The original team as co-listed on the first observing proposal was: Nicholas Suntzeff (PI); Brian Schmidt (Co-I); (other Co-Is) R. Chris Smith, Robert Schommer, Mark M. Phillips, Mario Hamuy, Roberto Aviles, Jose Maza, Adam Riess, Robert Kirshner, Jason Spiromilio, and Bruno Leibundgut. The original project was awarded four nights of telescope time on the CTIO Victor M. Blanco Telescope on the nights of February 25, 1995, and March 6, 24, and 29, 1995. The pilot project led to the discovery of supernova SN1995Y. In 1995, the HZT elected Brian P. Schmidt of the Mount Stromlo Observatory which is part of the Australian National University to manage the team.The team expanded to roughly 20 astronomers located in the United States, Europe, Australia, and Chile. They used the Victor M. Blanco telescope to discover Type Ia supernovae out to redshifts of z = 0.9. The discoveries were verified with spectra taken mostly from the telescopes of the Keck Observatory, and the European Southern Observatory.In a 1998 study led by Adam Riess, the High-Z Team became the first to publish evidence that the expansion of the Universe is accelerating (Riess et al. 1998, AJ, 116, 1009, submitted March 13, 1998, accepted May 1998). The team later spawned Project ESSENCE led by Christopher Stubbs of Harvard University and the Higher-Z Team led by Adam Riess of Johns Hopkins University and Space Telescope Science Institute.In 2011, Riess and Schmidt, along with Saul Perlmutter of the Supernova Cosmology Project, were awarded the Nobel Prize in Physics for this work.

High-frequency ultrasound

High-definition optical disc format war

High-level

High-frequency direction finding (electronics)

High-frequency

High-efficiency solar cell

High-key lighting is a style of lighting for film, television, or photography that aims to reduce the lighting ratio present in the scene. This was originally done partly for technological reasons, since early film and television did not deal well with high contrast ratios, but now is used to suggest an upbeat mood. It is often used in sitcoms and comedies. High-key lighting is usually quite homogeneous and free from dark shadows.

High-density storage media

High-altar

A high-integrity pressure protection system (HIPPS) is a type of safety instrumented system (SIS) designed to prevent over-pressurization of a plant, such as a chemical plant or oil refinery. The HIPPS will shut off the source of the high pressure before the design pressure of the system is exceeded, thus preventing loss of containment through rupture (explosion) of a line or vessel.

High-frequency Active Auroral Research Program

The high-altitude football controversy arose in May 2007 when FIFA introduced a temporary ban on international matches at more than 2,500 metres (8,200 ft) above sea level, citing concerns about players' health and the "unfair" advantage to acclimatised home teams. The ruling meant that Bolivia, Ecuador and Colombia would be prevented from hosting FIFA World Cup qualifiers in their own capital cities. The ban was revoked in May 2008.

High-functioning autism (HFA) is a term applied to people with autism who are deemed to be cognitively "higher functioning" (with an IQ of 70 or greater) than other people with autism. Individuals with HFA or Asperger syndrome may exhibit deficits in areas of communication, emotion recognition and expression, and social interaction. HFA is not a recognized diagnosis in the DSM-5 or the ICD-10.The amount of overlap between HFA and Asperger syndrome is disputed.

A high-explosive anti-tank (HEAT) warhead is a type of shaped charge explosive that uses the Munroe effect to penetrate thick tank armor. The warhead functions by having the explosive charge collapse a metal liner inside the tank to form a high-velocity superplastic jet of liquid metal. This concentrated liquid metal jet is capable of penetrating armor steel to a depth of seven or more times the diameter of the charge (charge diameters, CD) but is usually used to immobilize or destroy tanks.

High-density polyethylene (HDPE) or polyethylene high-density (PEHD) is a polyethylene thermoplastic made from petroleum. It is sometimes called "alkathene" or "polythene" when used for pipes. With a high strength-to-density ratio, HDPE is used in the production of plastic bottles, corrosion-resistant piping, geomembranes, and plastic lumber.

High-commitment management emphasizes personal responsibility, independence, and empowerment of employees across all levels instead of focusing on one higher power; it always intended to keep commitment at high level “calling all the shots”.A high commitment system is unusual in its job design and cultural structure. These practices emphasize getting the tasks complete, but do it in a way that their employees enjoy doing it.

High-dynamic range rendering

High-Z Supernova Search Team

High-density housing

High-definition television in the United Kingdom is available via cable, IPTV, satellite and terrestrial television. The first high-definition broadcasts began in 2006 and since then the number of channels available to view has grown to a maximum of 87 that can be viewed on pay-TV service, Sky.The majority of channels in the United Kingdom remain broadcast, and largely viewed, in standard-definition but most major broadcasters have begun or are soon beginning their initial forays into high-definition television. Similarly, the vast majority of viewing still takes place in standard-definition though penetration of high-definition displays and receivers is increasing. High-definition broadcasts are available on satellite services: Freesat, Freesat from Sky and Sky; cable services Smallworld Cable and Virgin TV and terrestrial Freeview HD.

High-grade prostatic intraepithelial neoplasia

High-columnar

High-card points

High-finned dragonet

High-efficiency video coding

High-level assemblers in computing are assemblers for assembly language that incorporate features found in high-level programming languages.The earliest high-level assembler was probably Burroughs ESPOL in about 1960, which provided an ALGOL-like syntax around explicitly-specified B5000 machine instructions. This was followed by Niklaus Wirth's PL360 in 1968; this replicated the Burroughs facilities, with which he was familiar, on an IBM System/360.

High-altitude pulmonary edema

High-energy laser

High-altitude platform

High-definition display

High-intensity radiated field

High-altitude pulmonary edema (HAPE) (HAPO spelled oedema in British English) is a life-threatening form of non-cardiogenic pulmonary edema (fluid accumulation in the lungs) that occurs in otherwise healthy mountaineers at altitudes typically above 2,500 meters (8,200 ft). However, cases have also been reported at lower altitudes (between 1,500–2,500 metres or 4,900–8,200 feet in highly vulnerable subjects), though what makes some people susceptible to HAPE is currently unknown. HAPE remains the major cause of death related to high-altitude exposure, with a high mortality rate in the absence of adequate emergency treatment.

High-altitude flatus expulsion (HAFE) is a gastrointestinal syndrome which involves the spontaneous passage of increased quantities of rectal gases at high altitudes. First described by Joseph Hamel in c.

High-fidelity

High definition fiber tracking (HDFT) is a tractography technique where data from MRI scanners is processed through computer algorithms to reveal the detailed wiring of the brain and to pinpoint fiber tracts. Each tract contains millions of neuronal connections. HDFT is based on data acquired from diffusion spectrum imaging and processed by generalized q-sampling imaging. The technique makes it possible to virtually dissect 40 major fiber tracts in the brain. The HDFT scan is consistent with brain anatomy unlike diffusion tensor imaging (DTI). Thus, the use of HDFT is essential in pinpointing damaged neural connections.

On 16 February 2006, the Secretary-General announced the formation of a new, high-level panel to explore how the United Nations system could work more coherently and effectively across the world in the areas of development, humanitarian assistance and the environment.The work of the Panel is supported by a small Secretariat based in New York.

A High-electron-mobility transistor (HEMT), also known as heterostructure FET (HFET) or modulation-doped FET (MODFET), is a field-effect transistor incorporating a junction between two materials with different band gaps (i.e. a heterojunction) as the channel instead of a doped region (as is generally the case for MOSFET). A commonly used material combination is GaAs with AlGaAs, though there is wide variation, dependent on the application of the device.

High-level architecture (simulation)

In urologic pathology, high-grade prostatic intraepithelial neoplasia, abbreviated HGPIN, is an abnormality of prostatic glands and believed to precede the development of prostate adenocarcinoma (the most common form of prostate cancer).It may be referred to simply as prostatic intraepithelial neoplasia (abbreviated as PIN). It is considered to be a pre-malignancy, or carcinoma in situ, of the prostatic glands.

High-altitude cooking

High-level emulation

High-concept film

In the recent past the problem of removing the deleterious iron particles from a process stream had a few alternatives. Magnetic separation was typically limited and moderately effective. Magnetic separators that used permanent magnets could generate fields of low intensity only. These worked well in removing ferrous tramp but not fine paramagnetic particles. Thus high-intensity magnetic separators that were effective in collecting paramagnetic particles came into existence.

High-definition thermal imaging

High-energy fuel

High-definition television (HDTV) in the United States was introduced in 1998 and has since become increasingly popular and dominant in the television market. Hundreds of HD channels are available in millions of homes and businesses both terrestrially and via subscription services such as satellite, cable and IPTV. HDTV has quickly become the standard, with about 85% of all TVs used being HD as of 2017. In the US, the 720p and 1080i formats are used for linear channels, while 1080p is available on a limited basis, mainly for pay-per-view and video on demand content.

High-capacity data radio (HCDR) is a development of the Near-Term Digital Radio (NTDR) for the UK government as a part of the Bowman communication system.

High-intensity focused ultrasound

High-grade

High-definition television in the United Kingdom

High-intensity discharge lamps

High-density polyethylene (HDPE) or polyethylene high-density (PEHD) is a polyethylene thermoplastic made from petroleum. It is sometimes called "alkathene" or "polythene" when used for pipes. With a high strength-to-density ratio, HDPE is used in the production of plastic bottles, corrosion-resistant piping, geomembranes, and plastic lumber. HDPE is commonly recycled, and has the number "2" as its resin identification code.In 2007, the global HDPE market reached a volume of more than 30 million tons.

High-explosive squash head

The first attempt at producing pre-recorded HDTV media was a scarce Japanese analog MUSE-encoded laser disc which is no longer produced. See MUSE-LD.In the U.S. market, the first currently available prerecorded HD media was D-Theater. Comprising less than 100 titles and utilizing a 28-Mbit/s MPEG2 stream at 720p or 1080i with either Dolby Digital 5.1 or DTS encoding, D-Theater is an encrypted D-VHS format, and only D-Theater-capable D-VHS players can play back these tapes.

High-heels

High-intensity sweetener

High-k dielectric

High-cut filter

HFIM, acronym for high-frequency-impulse-measurement, is a certain kind of measurement technique in acoustics, where structure-borne sound signals are detected and processed with certain emphasis on short-lived signals as they are indicative for crack formation in a solid body, mostly steel.

High-backed headstander

High-hypersonic speed regime

High-dimensional space

High-income economy

High frequency ventilation is a type of mechanical ventilation which utilizes a respiratory rate greater than 4 times the normal value. (>150 (Vf) breaths per minute) and very small tidal volumes. High frequency ventilation is thought to reduce ventilator-associated lung injury (VALI), especially in the context of ARDS and acute lung injury. This is commonly referred to as lung protective ventilation. There are different types of High frequency ventilation.

High-level assembler

High-and-dry

High-frequency ventilation

High-definition pre-recorded media and compression

High-intensity discharge headlight

High-casqued chameleon

High Level Architecture

High-level language computer architecture

HFIM, acronym for high-frequency-impulse-measurement, is a certain kind of measurement technique in acoustics, where structure-borne sound signals are detected and processed with certain emphasis on short-lived signals as they are indicative for crack formation in a solid body, mostly steel. The basic idea is to use mathematical signal processing methods such as Fourier analysis in combination with suitable computer hardware to allow for real-time measurements of acoustic signal amplitudes as well as their distribution in frequency space. The main benefit of this technique is the enhanced signal-to-noise ratio when it comes to the separation of acoustic emission from a certain source and other, unwanted contamination by any kinds of noise. The technique is therefore mostly applied in industrial production processes, e.g. cold forming or machining, where a 100 percent quality control is required or in condition monitoring for e.g. quantifying tool wear.

High-dimensional model representation is a finite expansion for a given multivariable function. The expansion is first described by Sobol as f ( x ) = f 0 + ∑ i = 1 n f i ( x i ) + ∑ i , j = 1 i < j n f i j ( x i , x j ) + ⋯ + f 12 … n ( x 1 , … , x n ) . {\displaystyle f(\mathbf {x} )=f_{0}+\sum _{i=1}^{n}f_{i}(x_{i})+\sum _{i,j=1 \atop i<j}^{n}f_{ij}(x_{i},x_{j})+\cdots +f_{12\ldots n}(x_{1},\ldots ,x_{n}).} The method, used to determine the right hand side functions, is given in Sobol's paper. A review can be found here: High Dimensional Model Representation (HDMR): Concepts and Applications.

High-impact plastic

High-energy particle

High-level platform

High-hardness armor

High-density amorphous ice

High-functioning alcoholism

High-income

High-caliber

High-affinity choline transporter

High-explosive incendiary

High-altitude cerebral oedema

A high-intensity radiated field (HIRF) is radio-frequency energy of a strength sufficient to adversely affect either a living organism or the performance of a device subjected to it. A microwave oven is an example of this principle put to controlled, safe use. Radio-frequency (RF) energy is non-ionizing electromagnetic radiation – its effects on tissue are through heating. Electronic components are affected via rectification of the RF and a corresponding shift in the bias points of the components in the field.The U.S. Food and Drug Administration (FDA), and U.S. Federal Communications Commission (FCC) set limits for the amounts of RF energy exposure permitted in a standard work-day.

High-dose estrogens

High-finned dragonet, Synchiropus rameus, is a species of dragonet native to the Pacific Ocean off the coasts of northwestern Australia as well as New Caledonia where it favors substrates consisting of sand or rubble. This species reaches a length of 15 centimetres (5.9 in) TL.

High-level description

High-availability Seamless Redundancy (HSR) is a network protocol for Ethernet that provides seamless failover against failure of any network component. This redundancy is invisible to the application.HSR nodes have two ports and act as a switch (bridge), which allows arranging them into a ring or meshed structure without dedicated switches.

High-g training

High-definition optical-disc format war

High-energy radio-frequency weapons

High-definition television in Malaysia

High-dose oestrogen

High-grade metamorphic rock

High-chair

High-field domain

High-definition television (HDTV) in the United States was introduced in 1998 and has since become increasingly popular and dominant in the television market. Hundreds of HD channels are available in millions of homes and businesses both terrestrially and via subscription services such as satellite, cable and IPTV. HDTV has quickly become the standard, with about 85% of all TVs used being HD as of 2017.

High-intensity magnetic separator

A high-frequency approximation (or "high energy approximation") for scattering or other wave propagation problems, in physics or engineering, is an approximation whose accuracy increases with the size of features on the scatterer or medium relative to the wavelength of the scattered particles.Classical mechanics and geometric optics are the most common and extreme high frequency approximation, where the wave or field properties of, respectively, quantum mechanics and electromagnetism are neglected entirely.Less extreme approximations include, the WKB approximation, physical optics, the geometric theory of diffraction, the uniform theory of diffraction, and the physical theory of diffraction. When these are used to approximate quantum mechanics, they are called semiclassical approximations.

High-impact philanthropy

High-end collateral lender

High-end audio cables

High-king of Ireland

High-density turbidity currents

High-fructose corn syrup and health

Enneapterygius tutuilae, known commonly as the high-hat triplefin, is a species of triplefin blenny in the genus Enneapterygius. It was described by Jordan and Seale in 1906.

High-frequency micro ultrasound

High-field asymmetric-waveform ion-mobility spectrometry

High-boiling solvent

High-content screening (HCS), also known as high-content analysis (HCA) or cellomics, is a method that is used in biological research and drug discovery to identify substances such as small molecules, peptides, or RNAi that alter the phenotype of a cell in a desired manner. Hence high content screening is a type of phenotypic screen conducted in cells. Phenotypic changes may include increases or decreases in the production of cellular products such as proteins and/or changes in the morphology (visual appearance) of the cell. High content screening includes any method used to analyze whole cells or components of cells with simultaneous readout of several parameters. Hence the name "high content screening". Unlike high-content analysis, high-content screening implies a level of throughput which is why the term "screening" differentiates HCS from HCA, which may be high in content but low in throughput.In high content screening, cells are first incubated with the substance and after a period of time, structures and molecular components of the cells are analyzed. The most common analysis involves labeling proteins with fluorescent tags, and finally changes in cell phenotype are measured using automated image analysis. Through the use of fluorescent tags with different absorption and emission maxima, it is possible to measure several different cell components in parallel. Furthermore, the imaging is able to detect changes at a subcellular level (e.g., cytoplasm vs. nucleus vs. other organelles). Therefore a large number of data points can be collected per cell. In addition to fluorescent labeling, various label free assays have been used in high content screening.

High-definition (disambiguation)

High-energy density physics

High-cube container

High-frequency ventilator

High-dose alkylating chemotherapy

High-capacity clip

High-density

High-flyer wrestler

High-context society

High-casqued Chameleon

High-density server

High-bit-rate digital subscriber line 2

High-level Panel on Threats, Challenges and Change

High-altitude research

High-altitude airship

High-context

In the United States, a high-deductible health plan (HDHP) is a health insurance plan with lower premiums and higher deductibles than a traditional health plan. Being covered by an HDHP is also a requirement for having a health savings account. Some HDHP plans also offer additional "wellness" benefits, provided before a deductible is paid. High-deductible health plans are a form of catastrophic coverage, intended to cover for catastrophic illnesses. Adoption rates of HDHPs have been growing since their inception in 2004, not only with increasing employer options, but also increasing government options. As of 2016, HDHPs represented 29% of the total covered workers in the United States; however, the impact of such benefit design is not widely understood.

The United Nations' High-level Panel on Threats, Challenges and Change was created in 2003 to analyse threats and challenges to international peace and security, and to recommend action based on this analysis. It was chaired by former Prime Minister of Thailand Anand Panyarachun, and its members included former United States National Security Advisor Brent Scowcroft, as well as several former heads of government and foreign ministers as members.

High-level design (HLD) explains the architecture that would be used for developing a software product. The architecture diagram provides an overview of an entire system, identifying the main components that would be developed for the product and their interfaces. The HLD uses possibly nontechnical to mildly technical terms that should be understandable to the administrators of the system. In contrast, low-level design further exposes the logical detailed design of each of these elements for programmers.

High-definition television in Europe

High-level assemblers in computing are assemblers for assembly language that incorporate features found in high-level programming languages.The earliest high-level assembler was probably Burroughs ESPOL in about 1960, which provided an ALGOL-like syntax around explicitly-specified B5000 machine instructions. This was followed by Niklaus Wirth's PL360 in 1968; this replicated the Burroughs facilities, with which he was familiar, on an IBM System/360. More recent high-level assemblers are Borland's TASM, NASM, Microsoft's MASM, IBM's HLASM (for z/Architecture systems), Alessandro Ghignola's Linoleum and Ziron.High-level assemblers typically provide instructions that directly assemble one-to-one into low-level machine code as in any assembler, plus control statements such as IF, WHILE, REPEAT...UNTIL, and FOR, macros, and other enhancements. This allows the use of high-level control statement abstractions wherever maximal speed or minimal space is not essential; low-level statements that assemble directly to machine code can be used to produce the fastest or shortest code. The end result is assembly source code that is far more readable than standard assembly code while preserving the efficiency inherent with using assembly language.High-level assemblers generally provide information-hiding facilities and the ability to call functions and procedures using a high-level-like syntax (i.e., the assembler automatically produces code to push parameters on the stack rather than the programmer having to manually write the code to do this).High-level assemblers also provide data abstractions normally found in high-level languages. Examples include structures, unions, classes, and sets. Some high-level assemblers (e.g., TASM and HLA) support object-oriented programming.

High energy astronomy is the study of astronomical objects that release electromagnetic radiation of highly energetic wavelengths. It includes X-ray astronomy, gamma-ray astronomy, and extreme UV astronomy, as well as studies of neutrinos and cosmic rays. The physical study of these phenomena is referred to as high-energy astrophysics.Astronomical objects commonly studied in this field may include black holes, neutron stars, active galactic nuclei, supernovae, supernova remnants, and gamma ray bursts.

High-frequency statistical arbitrage

High-k Metals

High-ballin'

High-efficiency plasma

High-frequency stimulation

High-density fibreboard

High-beam assistant

High-altitude cerebral edema (HACE) is a medical condition in which the brain swells with fluid because of the physiological effects of traveling to a high altitude. It generally appears in patients who have acute mountain sickness and involves disorientation, lethargy, and nausea among other symptoms.

High-efficiency hybrid cycle

High-dose oestrogens

High-impact polystyrene

High-frequency trader

High-fidelity audio

High-income economies

High-density turbidity current

High-grading

High-availability Seamless Redundancy

High-energy acyl phosphate

High-definition television in the United Kingdom is available via cable, IPTV, satellite and terrestrial television.

High-flow therapy

High-enriched uranium

High-albedo areas on Ceres

High-desert climate

High-definition

High-altitude adaptation in humans is an instance of evolutionary modification in certain human populations, including those of Tibet in Asia, the Andes of the Americas, and Ethiopia in Africa, who have acquired the ability to survive at extremely high altitudes. This adaptation means irreversible, long-term physiological responses to high-altitude environments, associated with heritable behavioural and genetic changes.While the rest of the human population would suffer serious health consequences, the indigenous inhabitants of these regions thrive well in the highest parts of the world. These people have undergone extensive physiological and genetic changes, particularly in the regulatory systems of oxygen respiration and blood circulation, when compared to the general lowland population.This special adaptation is now recognised as an example of natural selection in action. The adaptation account of the Tibetans has become the fastest case of human evolution in the scientific record, as it is estimated to have occurred in less than 3,000 years.Modern humans dispersed from Africa less than 100,000 years ago, mixing with previously present populations, and eventually colonising the rest of the world, including the harshest environments of extreme cold and high mountains. The abundance of oxygen in the atmosphere is inversely related to altitude from the sea level; hence, the highest mountain ranges of the world are considered unsuitable for human habitation.Nevertheless, around 140 million people, just under 2% of the world's human population, live permanently at high altitudes, that is, at heights above 2,500 metres (8,200 ft) in South America, East Africa, and South Asia. These populations have done so for millennia without apparent complications. The overwhelming majority, over 98% of humans from other parts of the world, normally suffer symptoms of altitude sickness in these regions, often resulting in life-threatening trauma and even death.Studies on the detail biological mechanism have revealed that adaptation of the Tibetans, Andeans and Ethiopians is indeed an observable instance of the process of natural selection in acting on favourable characters such as enhanced respiratory mechanisms in humans.

High-income country

High-key lighting

High-frequency heating

The high-definition optical disc format war was between the Blu-ray and HD DVD optical disc standards for storing high-definition video and audio; it took place between 2006 and 2008 and was won by Blu-ray Disc.The two formats emerged between 2000 and 2003 and attracted both the mutual and exclusive support of major consumer electronics manufacturers, personal computer manufacturers, television and movie producers and distributors, and software developers.Blu-ray and HD DVD players became commercially available starting in 2006.

A high-field domain is a band of elevated field orthogonal to the equi-current lines and seen in photoconductive CdS and monochromatic light at the band edge as dark band was discovered by Böer, using the Franz-Keldysh effect. Such domains must appear whenever the conductivity decreases stronger than linearly.

High-definition voice call

High-hat (fish)

The United Nations' High-level Panel on Threats, Challenges and Change was created in 2003 to analyse threats and challenges to international peace and security, and to recommend action based on this analysis. It was chaired by former Prime Minister of Thailand Anand Panyarachun, and its members included former United States National Security Advisor Brent Scowcroft, as well as several former heads of government and foreign ministers as members. In December 2004, it produced a report on threats to peace and security.

High-leg delta

High-head syndrome

High-key lighting is a style of lighting for film, television, or photography that aims to reduce the lighting ratio present in the scene. This was originally done partly for technological reasons, since early film and television did not deal well with high contrast ratios, but now is used to suggest an upbeat mood. It is often used in sitcoms and comedies. High-key lighting is usually quite homogeneous and free from dark shadows. The terminology comes from the higher balance in the ratio between the key light and the fill light in a traditional three point lighting setup.In the 1950s and 1960s, high-key lighting was achieved through multiple light sources lighting a scene—usually using three fixtures per person (left, right, and central) —which resulted in a uniform lighting pattern with very little modeling. Nowadays, multiple hot light sources are substituted by much more efficient fluorescent soft lights which provide a similar effect.The advantage to high-key lighting is that it doesn't require adjustment for each scene which allows the production to complete the shooting in hours instead of days. The primary drawback is that high-key lighting fails to add meaning or drama by lighting certain parts more prominently than others.Shows with bigger budgets have moved away from high-key lighting by using lighting set-ups different from the standard three-point lighting. Part of the reason for this is the advent of new lighting fixtures which are easier to use and quicker to set up. Another reason is the growing sophistication of the audience for TV programs and the need to differentiate.The term "high-key" has found its way from cinema into more widespread usage, for example referring to an event that requires much organization or is subject to a great deal of publicity.

High-altitude flying

High-density penetrator

High-alert nuclear weapon

High-efficiency Video Coding

High-k dielectrics

High-altitude cerebral edema (HACE) is a medical condition in which the brain swells with fluid because of the physiological effects of traveling to a high altitude. It generally appears in patients who have acute mountain sickness and involves disorientation, lethargy, and nausea among other symptoms. It occurs when the body fails to acclimatize while ascending to a high altitude.It appears to be a vasogenic edema (fluid penetration of the blood–brain barrier), although cytotoxic edema (cellular retention of fluids) may play a role as well. Individuals with the condition must immediately descend to a lower altitude or coma and death can occur. Patients are usually given supplemental oxygen and dexamethasone as well.HACE can be prevented by ascending to heights slowly to allow the body more time to acclimatize. Acetazolamide also helps prevent the condition. Untreated patients usually die within 48 hours. Those who receive treatment may take weeks to fully recover. It is a rare condition, occurring in less than one percent of people who ascend to 4,000 metres (13,000 ft). First described in 1913, little was known about the cause of the condition until MRI studies were performed in the 1990s.

High-frequency approximation

High definition fiber tracking (HDFT) is a tractography technique where data from MRI scanners is processed through computer algorithms to reveal the detailed wiring of the brain and to pinpoint fiber tracts. Each tract contains millions of neuronal connections. HDFT is based on data acquired from diffusion spectrum imaging and processed by generalized q-sampling imaging. The technique makes it possible to virtually dissect 40 major fiber tracts in the brain.

High-efficiency solar cells

High-hub flange

High-grade lymphoma

High-dimensional model representation is a finite expansion for a given multivariable function.

In the United States, a high-deductible health plan (HDHP) is a health insurance plan with lower premiums and higher deductibles than a traditional health plan. Being covered by an HDHP is also a requirement for having a health savings account. Some HDHP plans also offer additional "wellness" benefits, provided before a deductible is paid. High-deductible health plans are a form of catastrophic coverage, intended to cover for catastrophic illnesses.

High-level bomber

High-frequency impact treatment

High-density solids pump

High-efficency particulate air

High-density solids pumps are hydrostatically operating machines which displace the medium being pumped and thus create a flow.

The term high-conductance state describes a particular state of neurons in specific states of the brain, such as for example during wakefulness, attentive states, or even during some anesthetized states.

High-definition Television

High-commitment management

High- and low-context cultures

High-key

High-king

High-bypass turbofan

High intensity focused ultrasound (HIFU) is an early stage medical technology that is in various stages of development worldwide to treat a range of disorders.The mechanism is similar to using a magnifying glass to focus sunlight. Focused ultrasound uses an acoustic lens to concentrate multiple intersecting beams of ultrasound on a target.

High-gravity beer

High frequency ventilation is a type of mechanical ventilation which utilizes a respiratory rate greater than 4 times the normal value. (>150 (Vf) breaths per minute) and very small tidal volumes. High frequency ventilation is thought to reduce ventilator-associated lung injury (VALI), especially in the context of ARDS and acute lung injury. This is commonly referred to as lung protective ventilation. There are different types of High frequency ventilation. Each type has its own unique advantages and disadvantages. The types of HFV are characterized by the delivery system and the type of exhalation phase.High frequency ventilation may be used alone, or in combination with conventional mechanical ventilation. In general, those devices that need conventional mechanical ventilation do not produce the same lung protective effects as those that can operate without tidal breathing. Specifications and capabilities will vary depending on the device manufacturer.

High-finned glass perchlet

High-definition television in Australia is available via cable, IPTV, satellite and terrestrial television. The first high-definition broadcasts began in 2001 and since then the number of channels available to view has grown to a maximum of 27 that can be viewed on pay-TV service, Foxtel.

High-altitude training

High-definition television in Singapore is already in "stage conversion".Although many households in Singapore own HD ready or Full HD television sets some of them are still broadcast in SDTV. However, these were in stage conversion with the digital television.

High-church

High-dosage estrogen

High-frequency jet ventilation

High-beam headlight

High intensity focused ultrasound (HIFU) is an early stage medical technology that is in various stages of development worldwide to treat a range of disorders.The mechanism is similar to using a magnifying glass to focus sunlight. Focused ultrasound uses an acoustic lens to concentrate multiple intersecting beams of ultrasound on a target. Each individual beam passes through tissue with little effect but at the focal point where the beams converge, the energy can have useful thermal or mechanical effects. HIFU is typically performed with real-time imaging via ultrasound or MRI to enable treatment targeting and monitoring (including thermal tracking with MRI).

High-definition televisions

A High-electron-mobility transistor (HEMT), also known as heterostructure FET (HFET) or modulation-doped FET (MODFET), is a field-effect transistor incorporating a junction between two materials with different band gaps (i.e. a heterojunction) as the channel instead of a doped region (as is generally the case for MOSFET). A commonly used material combination is GaAs with AlGaAs, though there is wide variation, dependent on the application of the device. Devices incorporating more indium generally show better high-frequency performance, while in recent years, gallium nitride HEMTs have attracted attention due to their high-power performance. Like other FETs, HEMTs are used in integrated circuits as digital on-off switches. FETs can also be used as amplifiers for large amounts of current using a small voltage as a control signal. Both of these uses are made possible by the FET’s unique current-voltage characteristics. HEMT transistors are able to operate at higher frequencies than ordinary transistors, up to millimeter wave frequencies, and are used in high-frequency products such as cell phones, satellite television receivers, voltage converters, and radar equipment. They are widely used in satellite receivers, in low power amplifiers and in the defense industry.

High-five

High-heel shoes

The United Nations High-level Political Forum on Sustainable Development or HLPF replaced the Commission on Sustainable Development on the 24 September 2013 after the last session of the Commission on Sustainable Development was held 4 days previously to close the commission which had lasted for 20 years.It meets both under the General Assembly every four years and the ECOSOC in other years with technical, ministerial and high level segments. Its meetings are held in July. It adopts negotiated declarations, reviews commitment and the progress of the 2030 Agenda for Sustainable Development.The HLPF was part of the agreement following the United Nations Conference on Sustainable Development or Rio+20 with the aim to strengthen Sustainable Development governance at the United Nations it has the mandate to:provide political leadership and recommendations for sustainable development,follow-up and review progress in implementing sustainable development commitments,enhance the integration of economic, social and environmental dimensions of sustainable development,have a focused, dynamic and action-oriented agenda,consider new and emerging sustainable development challenges,from 2016 take on the functions of the ECOSOC Annual Ministerial Reviews on the post-MDG/Sustainable Development goals.The forum meets:every four years at the level of Heads of State and Government under the auspices of the General Assemblyevery year under the auspices of the Economic and Social Council—for eight days, including a three-day ministerial segmentIn keeping with this meeting rhythm, 100-page reports are to be published, starting with a prototype report in 2014, along with a call for contributions to the 2015 version.

High-availability Seamless Redundancy (HSR) is a network protocol for Ethernet that provides seamless failover against failure of any network component. This redundancy is invisible to the application.HSR nodes have two ports and act as a switch (bridge), which allows arranging them into a ring or meshed structure without dedicated switches. This is in contrast to the companion standard Parallel Redundancy Protocol (IEC 62439-3 Clause 4), with which HSR shares the operating principle.PRP and HSR are standardized by the IEC 62439-3:2016).PRP and HSR are independent of the application-protocol and can be used by most Industrial Ethernet protocols in the IEC 61784 suite. It has been adopted for substation automation in the framework of IEC 61850.PRP and HSR are suited for applications that request high availability and short switchover time, such as: protection for electrical substation, synchronized drives (e.g. in printing machines) or high power inverters. For such applications, the recovery time of commonly used protocols such as the Rapid Spanning Tree Protocol (RSTP) is too long. The cost of HSR is that nodes require hardware support (FPGA or ASIC) to forward or discard frames within microseconds. This cost is compensated because no Ethernet switches are required. Hardware support is anyhow needed when the node supports clock synchronization or security.HSR does not cover the failure of end nodes, but redundant nodes can be connected via HSR.

High-alumina cement

High-definition television in Singapore

High-bush cranberry

High-density turbidite

High-definition TV

High-harmonic generation

High-conductance State

High-altitude flatus expulsion (HAFE) is a gastrointestinal syndrome which involves the spontaneous passage of increased quantities of rectal gases at high altitudes. First described by Joseph Hamel in c. 1820 and occasionally described afterward, a landmark study of this phenomenon was published in 1981 by Paul Auerbach and York Miller.The phenomenon is based on the differential in atmospheric pressure, directly correlated with the observer's frequency of and level of experience in high-altitude metabolism. As the external pressure decreases, the difference in pressure between the gas within the body and the atmosphere outside is higher, and the urge to expel gas to relieve the pressure is greater. Consistent with Boyle's law, controlling for dietary variance, the amount of gas produced is constant in mass, but the volume increases as the external pressure decreases.The feeling of fullness or need to expel brought on by this differential in atmospheric pressure has been verified by studies involving military pilots subjected to pressure changes simulating flight.

High-energy phosphate can mean one of two things:The phosphate-phosphate bonds formed when compounds such as adenosine diphosphate (ADP) and adenosine triphosphate (ATP) are created.The compounds that contain these bonds, which include the nucleoside diphosphates and nucleoside triphosphates, and the high-energy storage compounds of the muscle, the phosphagens.

A high-angle shot is a cinematic technique where the camera looks down on the subject from a high angle and the point of focus often gets "swallowed up."High-angle shots can make the subject seem vulnerable or powerless when applied with the correct mood, setting, and effects. In film, they can make the scene more dramatic. If there is a person at high elevation who is talking to someone below them, this shot is often used.

High-brix

High-end

High-density polyethene

High-level Political Forum on sustainable development

High- temperature collectors

High-art

High-hat Triplefin

In statistical theory, the field of high-dimensional statistics studies data whose dimension is larger than dimensions considered in classical multivariate analysis. High-dimensional statistics relies on the theory of random vectors. In many applications, the dimension of the data vectors may be larger than the sample size.

High-altitude platforms

High-level bombing

High-altitude frogs

High-definition computer monitor

High resolution thermal imaging refers to the fine detail and clarity of a thermal image. This means it contains a large number of pixels per unit of area. More pixels mean greater temperature measurement accuracy, particularly for small objects.High Definition Thermal Imaging refers to the image refresh rate, exactly like a television, whereas the thermal imaging camera outputs an image refresh rate at 50/60 Hz NTSC/PAL or 50 to 60 frames per second.

High-density soil sampling

High-altitude adaptation

A high-explosive anti-tank (HEAT) warhead is a type of shaped charge explosive that uses the Munroe effect to penetrate thick tank armor. The warhead functions by having the explosive charge collapse a metal liner inside the tank to form a high-velocity superplastic jet of liquid metal. This concentrated liquid metal jet is capable of penetrating armor steel to a depth of seven or more times the diameter of the charge (charge diameters, CD) but is usually used to immobilize or destroy tanks. Due to the way they work, they do not have to be fired as fast as an armor piercing shell, allowing less recoil. Contrary to a widespread misconception (possibly resulting from the acronym HEAT), the jet does not melt its way through armor, as its effect is purely kinetic in nature. The HEAT warhead has become less effective against tanks and other armored vehicles due to the use of composite armor, explosive-reactive armor, and active protection systems which destroy the HEAT warhead before it hits the tank. Even though HEAT rounds are less effective against the heavy armour of 2010-era main battle tanks, HEAT warheads remain a threat against less-armoured parts of a main battle tank (e.g., rear, top) and against lighter armoured vehicles or unarmoured vehicles and helicopters.

High-efficiency boiler

High-functioning autism

High-arched palate

The High-Z Supernova Search Team was an international cosmology collaboration which used Type Ia supernovae to chart the expansion of the universe. The team was formed in 1994 by Brian P. Schmidt, then a post-doctoral research associate at Harvard University, and Nicholas B. Suntzeff, a staff astronomer at the Cerro Tololo Inter-American Observatory (CTIO) in Chile.

High-intensity discharge headlamp

High-frequency oscillatory ventilation

High-bit-rate digital subscriber line (HDSL) is a telecommunications protocol standardized in 1994. It was the first digital subscriber line (DSL) technology to use a higher frequency spectrum over copper, twisted pair cables. HDSL was developed to transport DS1 services at 1.544 Mbit/s and 2.048 Mbit/s over telephone local loops without a need for repeaters. Successor technology to HDSL includes HDSL2 and HDSL4, proprietary SDSL, and G.SHDSL.

High-heeled shoes

High-integrity pressure protection system

In metrology, high-definition metrology is where measurements are made densely across the observable extent of that surface or object and displayed with high-definition. In that sense, high-definition is analogous to high definition television.High-definition measurements are therefore contrasted with "global" or "overall" or "statistical" measurements which provide some single or coarsely sampled measurement values that do not define the surface or object attribute variations in detail.

High-impedance

High-altitude cerebral edema

High-fiving

High-floor bus

High-billed crow

High-energy phosphate

The boiling point of water is lower at higher altitudes due to the decreased atmospheric pressure. High-altitude cooking requires a compensation for lower temperatures for any cooking that involves boiling or steaming. This effect starts to become relevant at altitudes above 2,000 feet (610 m). Means of compensation include boiling/steaming for longer times or using a pressure cooker to provide higher pressure inside the cooking vessel, and hence higher temperature.

A high-frequency approximation (or "high energy approximation") for scattering or other wave propagation problems, in physics or engineering, is an approximation whose accuracy increases with the size of features on the scatterer or medium relative to the wavelength of the scattered particles.Classical mechanics and geometric optics are the most common and extreme high frequency approximation, where the wave or field properties of, respectively, quantum mechanics and electromagnetism are neglected entirely.Less extreme approximations include, the WKB approximation, physical optics, the geometric theory of diffraction, the uniform theory of diffraction, and the physical theory of diffraction.

High-explosive fragmentation

High-energy physics

High-commitment management emphasizes personal responsibility, independence, and empowerment of employees across all levels instead of focusing on one higher power; it always intended to keep commitment at high level “calling all the shots”.A high commitment system is unusual in its job design and cultural structure. These practices emphasize getting the tasks complete, but do it in a way that their employees enjoy doing it. According to Harvard Business School Professor Michael Beer, “leaders develop an organizational design, business processes, goals and measures, and capabilities that are aligned with a focused, winning strategy.” This kind of environment allows employees to approach tasks at ease, wearing jeans instead of suits and staying home to watch their children get on the bus for school before coming to work. Technology also plays a role in this system. Recently, technology has slaughtered barriers of communication, which makes this high-commitment model fit that much better. That father waiting for the bus can still answer phone calls and check emails for work, so is he working or is he spending time with his daughter? He can be doing both. As long as the job gets done, this system is casual on how it gets done, relieving employees of constant stress.A flat organizational structure is one of the biggest success factors. Individuals are responsible for their own decision-making and these decisions, their skill, and their performance is how they get paid. Instead of putting too much weight on the individual, “people are likely to see the locus of the control coming from ‘within’ through the adoption of self-created demands and pressures as opposed to external and making them feel subordinate.” While these companies allow each employee to be a manager in their own way and try not to distinguish its structure by higher levels of employment, it doesn’t mean that they lack these higher powers entirely. It's that under this system people aren’t relying on the general managers, CEOs, or other employees to do their work for them. This personal discipline is what drives the employees to help the company be successful. and eliminates the chance at a thought like, “Why would I want to help my company become better if I know I’m just going to get yelled at?” Another focus of high commitment practices is their employee relationships. They only hire people who are flexible, determined, and are willing to handle challenges. Because this system relies on individual performance, there is a big emphasis on hiring the right people for the job. The detailed recruitment process can consist of many interviews with different members of the company, an induction course, and in some cases, team-building exercises. Once found, the right employees help create a strong bond and high trust throughout the entire company.High commitment workplaces are successful through their importance on an individual’s responsibility in order to help the team prosper. By creating a culture that motivates individuals to want to succeed while sustaining high commitment, “these firms stand out by having achieved long periods of excellence.”

In information technology, high-availability application architecture is a process followed when implementing a new application into an existing business-wide computer system or ERP while minimizing downtime.The architecture contains three stages: development, quality assurance, and production.

High-level nuclear waste

High-altitude low-opening parachute technique

The first attempt at producing pre-recorded HDTV media was a scarce Japanese analog MUSE-encoded laser disc which is no longer produced. See MUSE-LD.In the U.S. market, the first currently available prerecorded HD media was D-Theater. Comprising less than 100 titles and utilizing a 28-Mbit/s MPEG2 stream at 720p or 1080i with either Dolby Digital 5.1 or DTS encoding, D-Theater is an encrypted D-VHS format, and only D-Theater-capable D-VHS players can play back these tapes. This format is superior to broadcast HDTV due to its higher bandwidth and, of course, the ability to do non-realtime optimization of the encoding, which is not possible with broadcast HDTV. D-Theater is currently a small niche market even within the niche HDTV community, and it appears as if the final D-Theater title was published in 2005 with 20th Century Fox release of i,Robot.In 2006, the first pre-recorded digital optical HDTV media were introduced. There were two competing standards, Blu-ray Disc and HD DVD. The first HD DVD players and discs were released on April 18, 2006 in the United States. Blu-ray Disc was released on June 20, 2006.

The high-billed crow or deep-billed crow (Corvus impluviatus) was a species of large, raven-sized crow that was endemic to the island of Maui in the Hawaiian Islands. It was pushed to extinction due to the arrival of people and pests like rats.

High-climbing jointfir

The high-efficiency hybrid cycle (HEHC) is a new 4-stroke thermodynamic cycle combining elements of the Otto cycle, Diesel cycle, Atkinson cycle and Rankine cycle.

High-altitude frog (disambiguation)

High-definition audio

High-explosive anti-tank warhead

The United Nations High-level Political Forum on Sustainable Development or HLPF replaced the Commission on Sustainable Development on the 24 September 2013 after the last session of the Commission on Sustainable Development was held 4 days previously to close the commission which had lasted for 20 years.It meets both under the General Assembly every four years and the ECOSOC in other years with technical, ministerial and high level segments. Its meetings are held in July.

High-intensity discharge

High-crotch

High-definition television in Australia

High-altitude football controversy

High-altitude nuclear explosions are the result of nuclear weapons testing. Several such tests were performed at high altitudes by the United States and the Soviet Union between 1958 and 1962.

High-fin synodontis

High-dose estrogen therapy

A high-integrity pressure protection system (HIPPS) is a type of safety instrumented system (SIS) designed to prevent over-pressurization of a plant, such as a chemical plant or oil refinery. The HIPPS will shut off the source of the high pressure before the design pressure of the system is exceeded, thus preventing loss of containment through rupture (explosion) of a line or vessel. Therefore, a HIPPS is considered as a barrier between a high-pressure and a low-pressure section of an installation.

High-k

High-definition digital TV

High-definition radio

High-hat

High-altitude balloons

High-carbohydrate diet

High-dimensional statistics

High-confinement mode

High-Yield Bonds

High-definition remasters for PlayStation 3

High-grade encryption

High-intensity training (HIT) is a form of strength training popularized in the 1970s by Arthur Jones, the founder of Nautilus. The training focuses on performing quality weight training repetitions to the point of momentary muscular failure. The training takes into account the number of repetitions, the amount of weight, and the amount of time the muscle is exposed to tension in order to maximize the amount of muscle fiber recruitment.

High-fantasy

High-functioning autistic

High-cap mag

High-dimensional

High-altitude long endurance

High-electron-mobility transistor

High-adventure bases of the Boy Scouts of America

High-density DVD

High-conductance state

High-density exercise

High-intensity activity

High-explosive squash head (HESH) is a type of explosive ammunition that is effective against tank armour and is also useful against buildings. It was fielded chiefly by the British Army as the main explosive round of its main battle tanks during the Cold War. It was also used by other military forces, particularly those that acquired the early post-World War 2 British 105 mm Royal Ordnance L7A1, including Germany, India, Israel and Sweden.

High-confinement mode or H-mode is an operating mode possible in toroidal magnetic confinement fusion devices - mostly tokamaks but also in stellarators. In this mode the plasma is more stable and better confined.It was discovered by Fritz Wagner in 1982 during neutral beam heating of the plasma at ASDEX. It has since been reproduced in all major toroidal confinement devices and is planned in the operation of ITER. Its self-consistent theoretical description was a topic of research in 2007. It was still considered a mystery with multiple competing theories (eg. predator-prey model) in 2016.

High-altitude adaptation in plants

High-availability application architecture

High-altitude nuclear explosion

High-definition multimedia interface

High-end audio cable

High-content screening

High-altitude adaptation in humans

High-altitude

High-availability

High-energy particle physics

A high-arched palate (also termed high-vaulted palate) is where the palate is unusually high and narrow. It is usually a developmental feature that may occur in isolation or in association with a number of conditions. It may also be an acquired condition caused by chronic thumb-sucking. High-arched palate may cause narrowed airway and sleep disordered breathing.Example conditions which may be associated with high-arched palate include:Crouzon syndromeDown syndromeApert syndromeTreacher Collins syndromeMarfan syndromeIncontinentia pigmenti

High-altitude flatus expulsion

The term high-conductance state describes a particular state of neurons in specific states of the brain, such as for example during wakefulness, attentive states, or even during some anesthetized states. In individual neurons, the high-conductance state is formally defined by the fact that the total synaptic conductance received by the neuron is larger than its natural resting (or leak) conductance, so in a sense the neuron is "driven" by its inputs rather than being dominated by its intrinsic activity. High-conductance states have been well characterized experimentally, but they also have motivated numerous theoretical studies, in particular in relation to the considerable amount of "noise" present in such states. It is believed that this "synaptic noise" has determinant properties on neuronal processing, and even may confer several computational advantages to neurons (see details in the article High-Conductance State in Scholarpedia).The term high-conductance state is also used to describe specific states of single ion channels. In this case, the high-conductance state corresponds to an open state of the channel which is associated with a particularly high conductance compared to other states.

High resolution thermal imaging refers to the fine detail and clarity of a thermal image. This means it contains a large number of pixels per unit of area. More pixels mean greater temperature measurement accuracy, particularly for small objects.High Definition Thermal Imaging refers to the image refresh rate, exactly like a television, whereas the thermal imaging camera outputs an image refresh rate at 50/60 Hz NTSC/PAL or 50 to 60 frames per second. This high image refresh rate is considered high definition whereas units with an image refresh rate around 30 frame/s are considered standard definition (just like a television).High resolution thermal imaging infrared cameras have a 640x480 detector, which delivers 307,200 pixels versus 76,800 in a thermal imager with a 320x240 detector. Four times better resolution (Sixteen times better than a thermal imaging infrared camera with a 160x120 detector. You can be twice the distance away as compared to a 320x240 thermal imaging infrared camera, or four times the distance as compared to the 160x120 thermal imaging infrared camera. This type of thermal imager can be used on substations, switchyard, transmission and distribution lines, all of which are littered with this type of target.The Hi-Resolution infrared camera can be four times the distance of a Low-Resolution and twice the distance of a Mid Resolution (not to be confused with Mid Wave) system and get the same image detail. At 1/2X distance, it takes 4 pictures to cover the same area; at 1/4X distance, it takes 16 pictures to cover the same area. Of course this is entirely dependent on the accuracy of the camera, lens used, software, etc.The NTSC system is 60 Hz and the PAL system is 50 Hz. Television NTSC uses 30 frames per second with a resolution of 640x480 and PAL uses 25 frame/s with a resolution of 720x576. In high definition television, ATSC uses 60 Hz, 30 frame/s, with a resolution up to 1920x1080.

High-definition video is video of higher resolution and quality than standard-definition. While there is no standardized meaning for high-definition, generally any video image with considerably more than 480 vertical lines (North America) or 576 vertical lines (Europe) is considered high-definition. 480 scan lines is generally the minimum even though the majority of systems greatly exceed that. Images of standard resolution captured at rates faster than normal (60 frames/second North America, 50 fps Europe), by a high-speed camera may be considered high-definition in some contexts. Some television series shot on high-definition video are made to look as if they have been shot on film, a technique which is often known as filmizing.

High-fin black skirt tetra

High-end audio is a class of consumer home audio equipment marketed to audiophiles on the basis of high price or quality, and esoteric or novel sound reproduction technologies. The term can refer simply to the price, to the build quality of the components, or to the subjective or objective quality of sound reproduction.

High-card point

High-intensity discharge lamps (HID lamps) are a type of electrical gas-discharge lamp which produces light by means of an electric arc between tungsten electrodes housed inside a translucent or transparent fused quartz or fused alumina arc tube. This tube is filled with noble gas and often also contains suitable metal or metal salts. The noble gas enables the arc's initial strike. Once the arc is started, it heats and evaporates the metallic admixture.

High-explosive

High-level design (HLD) explains the architecture that would be used for developing a software product. The architecture diagram provides an overview of an entire system, identifying the main components that would be developed for the product and their interfaces. The HLD uses possibly nontechnical to mildly technical terms that should be understandable to the administrators of the system.

High-energy astronomy

High-efficiency plasma lighting

High-finned sperm whale

High-alert nuclear weapon(s) commonly refers to a launch-ready ballistic missile(s) armed with a nuclear warhead(s) whose launch can be ordered (through the National Command Authority) and executed (via a nuclear command and control system) within 15 minutes or less. This can include any weapon system capable of delivering a nuclear warhead in this time frame.Virtually all high-alert nuclear weapons are possessed by the U.S. and Russia. Both nations use automated command and control systems in conjunction with their early warning radar and/or satellites to facilitate the rapid launch of their land-based intercontinental ballistic missiles (ICBMs) and some submarine-launched ballistic missiles (SLBMs). Fear of a "disarming" nuclear first-strike that would destroy their command and control systems and nuclear forces led both nations to develop "launch-on-warning" capability, which requires high-alert nuclear weapons able to launch on a 30-minute (or less) tactical warning, the nominal flight time of ICBMs traveling between the U.S. and Russia.A definition of "high-alert" requires no specific explosive power of the weapon carried by the missile or weapon system, but in general, most high-alert missiles are armed with strategic nuclear weapons with yields equal to or greater than 100 kilotons. The U.S. and Russia have for decades possessed ICBMs and SLBMs capable of being launched in only a few minutes.The U.S. and Russia currently have a total of 900 missiles and 2581 strategic nuclear warheads on high-alert, launch-ready status. The total explosive power of these weapons is about 1185 Mt (megatons, or 1.185 billion tons of TNT equivalent explosive power).
High-alert nuclear weapon(s) commonly refers to a launch-ready ballistic missile(s) armed with a nuclear warhead(s) whose launch can be ordered (through the National Command Authority) and executed (via a nuclear command and control system) within 15 minutes or less. This can include any weapon system capable of delivering a nuclear warhead in this time frame.Virtually all high-alert nuclear weapons are possessed by the U.S. and Russia.

High-altitude adaptation in humans is an instance of evolutionary modification in certain human populations, including those of Tibet in Asia, the Andes of the Americas, and Ethiopia in Africa, who have acquired the ability to survive at extremely high altitudes.

High-functioning autism spectrum disorder

High-heel shoe

High-fived

High-crown seahorse

A high-arched palate (also termed high-vaulted palate) is where the palate is unusually high and narrow. It is usually a developmental feature that may occur in isolation or in association with a number of conditions. It may also be an acquired condition caused by chronic thumb-sucking.

High-capacity data radio

High-angle rescue

High-frequency Trading

High-explosive shell

High-intensity discharge lamp

High-carbon steel

High-altitude flight

High energy astronomy is the study of astronomical objects that release electromagnetic radiation of highly energetic wavelengths. It includes X-ray astronomy, gamma-ray astronomy, and extreme UV astronomy, as well as studies of neutrinos and cosmic rays.

High-frequency ventilation (passive)

High-confinement mode or H-mode is an operating mode possible in toroidal magnetic confinement fusion devices - mostly tokamaks but also in stellarators. In this mode the plasma is more stable and better confined.It was discovered by Fritz Wagner in 1982 during neutral beam heating of the plasma at ASDEX. It has since been reproduced in all major toroidal confinement devices and is planned in the operation of ITER. Its self-consistent theoretical description was a topic of research in 2007.

There are a wide range of potential applications for research at high altitude, including medical, physiological, and cosmic physics research.

High-deductible health plan

The high-frequency impact treatment or HiFIT – Method is the treatment of welded steel constructions at the weld transition to increase the fatigue strength.

High-density polyethylene

High-income countries

High-bit-rate digital subscriber line

High-altitude forest

High-capacity data radio (HCDR) is a development of the Near-Term Digital Radio (NTDR) for the UK government as a part of the Bowman communication system. It is a secure wideband 225–450 MHz UHF radio system that provides a self-managing IP-based Internet backbone capability without the need for other infrastructure communications (mobile phone, fixed communications).There is also an export version that incorporates Advanced Encryption Standard (AES) encryption rather than UK Government Type 1 Crypto. The radio offers a link throughput (terminal to terminal) of 500 kbit/s. A deployment of over 200 HCDR-equipped military vehicles can automatically configure and self manage into a fully connected autonomous mesh network intercommunicating using mobile ad hoc network (MANET) protocols. The radio is an IPv4-compliant three-port router having a radio port, Ethernet port and PPP serial port. The 20-watt radio has adaptive transmit power and adaptive forward error correction and can optimally achieve ground ranges up to 15 km with omnidirectional antennas. A maritime version allows radio LAN operation within flotillas of naval ships up to 20 km apart. The radio features coded modulation with internal wide-band or narrow band radio data modems.

High-born

High-level language

High-dynamic-range images

High-heeled footwear

High-energy phosphate can mean one of two things:The phosphate-phosphate bonds formed when compounds such as adenosine diphosphate (ADP) and adenosine triphosphate (ATP) are created.The compounds that contain these bonds, which include the nucleoside diphosphates and nucleoside triphosphates, and the high-energy storage compounds of the muscle, the phosphagens. When people speak of a high-energy phosphate pool, they speak of the total concentration of these compounds with these high-energy bonds.High-energy phosphate bonds are pyrophosphate bonds, acid anhydride linkages formed by taking phosphoric acid derivatives and dehydrating them. As a consequence, the hydrolysis of these bonds is exergonic under physiological conditions, releasing energy.Except for PPi → 2 Pi, these reactions are, in general, not allowed to go uncontrolled in the human cell but are instead coupled to other processes needing energy to drive them to completion. Thus, high-energy phosphate reactions can:provide energy to cellular processes, allowing them to runcouple processes to a particular nucleoside, allowing for regulatory control of the processdrive a reaction out of equilibrium (drive it to the right) by promoting one direction of the reaction faster than the equilibrium can relax.The one exception is of value because it allows a single hydrolysis, ATP + H2O → AMP + PPi, to effectively supply the energy of hydrolysis of two high-energy bonds, with the hydrolysis of PPi being allowed to go to completion in a separate reaction. The AMP is regenerated to ATP in two steps, with the equilibrium reaction ATP + AMP ↔ 2ADP, followed by regeneration of ATP by the usual means, oxidative phosphorylation or other energy-producing pathways such as glycolysis.Often, high-energy phosphate bonds are denoted by the character '~'. In this "squiggle" notation, ATP becomes A-P~P~P. The squiggle notation was invented by Fritz Albert Lipmann, who first proposed ATP as the main energy transfer molecule of the cell, in 1941. It emphasizes the special nature of these bonds. Stryer states:ATP is often called a high energy compound and its phosphoanhydride bonds are referred to as high-energy bonds. There is nothing special about the bonds themselves. They are high-energy bonds in the sense that free energy is released when they are hydrolyzed, for the reasons given above. Lipmann’s term “high-energy bond” and his symbol ~P (squiggle P) for a compound having a high phosphate group transfer potential are vivid, concise, and useful notations. In fact Lipmann’s squiggle did much to stimulate interest in bioenergetics.The term 'high energy' with respect to these bonds can be misleading because the negative free energy change is not due directly to the breaking of the bonds themselves. The breaking of these bonds, like the breaking of most bonds, is endergonic and consumes energy rather than releasing it. The negative free energy change comes instead from the fact that the bonds formed after hydrolysis - or the phosphorylation of a residue by ATP - are lower in energy than the bonds present before hydrolysis. (This includes all of the bonds involved in the reaction, not just the phosphate bonds themselves). This effect is due to a number of factors including increased resonance stabilization and solvation of the products relative to the reactants.

In the recent past the problem of removing the deleterious iron particles from a process stream had a few alternatives. Magnetic separation was typically limited and moderately effective. Magnetic separators that used permanent magnets could generate fields of low intensity only. These worked well in removing ferrous tramp but not fine paramagnetic particles. Thus high-intensity magnetic separators that were effective in collecting paramagnetic particles came into existence. These focus on the separation of very fine particles that are paramagnetic.The current is passed through the coil, which creates a magnetic field, which magnetizes the expanded steel matrix ring. The paramagnetic matrix material behaves like a magnet in the magnetic field and thereby attracts the fines. The ring is rinsed when it is in the magnetic field and all the non-magnetic particles are carried with the rinse water. Next as the ring leaves the magnetic zone the ring is flushed and a vacuum of about – 0.3 bars is applied to remove the magnetic particles attached to the matrix ring.

High-explosive anti-tank

High-level emulator

High-dimensional model representation

High-altitude bombing

High-density fiberboard

High-definition video is video of higher resolution and quality than standard-definition. While there is no standardized meaning for high-definition, generally any video image with considerably more than 480 vertical lines (North America) or 576 vertical lines (Europe) is considered high-definition. 480 scan lines is generally the minimum even though the majority of systems greatly exceed that.

High-density turbidites

High-five of Teenagers

High-frequency ventilation (active)

High-altitude sickness

High-leg delta (also known as wild-leg, stinger leg, bastard leg, high-leg, orange-leg, or red-leg delta) is a type of electrical service connection for three-phase electric power installations. It is used when both single and three-phase power is desired to be supplied from a three phase transformer (or transformer bank). The three-phase power is connected in the delta configuration, and the center point of one phase is grounded. This creates both a split-phase single phase supply (L1 or L2 to neutral on diagram at right) and three-phase (L1-L2-L3 at right). It is called "orange leg" because when it is connected per the NEC, the high leg is marked with orange "outer finish...or other effective means" (usually tape). By convention, the high leg is usually set in the center (B phase) lug in the involved panel, regardless of the L1-L2-L3 designation at the transformer.

High-alloy steel

High-intensity training

High-altitude pulmonary edema (HAPE) (HAPO spelled oedema in British English) is a life-threatening form of non-cardiogenic pulmonary edema (fluid accumulation in the lungs) that occurs in otherwise healthy mountaineers at altitudes typically above 2,500 meters (8,200 ft). However, cases have also been reported at lower altitudes (between 1,500–2,500 metres or 4,900–8,200 feet in highly vulnerable subjects), though what makes some people susceptible to HAPE is currently unknown.

High-definition fiber tracking

The high-definition optical disc format war was between the Blu-ray and HD DVD optical disc standards for storing high-definition video and audio; it took place between 2006 and 2008 and was won by Blu-ray Disc.The two formats emerged between 2000 and 2003 and attracted both the mutual and exclusive support of major consumer electronics manufacturers, personal computer manufacturers, television and movie producers and distributors, and software developers.Blu-ray and HD DVD players became commercially available starting in 2006. In early 2008, the war ended when several studios and distributors shifted to Blu-ray disc. On February 19, 2008, Toshiba officially announced that it would stop the development of the HD DVD players, conceding the format war to the Blu-ray Disc format.

High-level Panel on United Nations Systemwide Coherence

High-iq societies

High-elevation forest

High-cycle fatigue

High-explosive antitank

High-elven

High-Altitude Pulmonary Edema (HAPE)

High-jump

High-caste

High-dimensional vector space

High-energy nuclear physics

High-availability clusters (also known as HA clusters or fail-over clusters) are groups of computers that support server applications that can be reliably utilized with a minimum amount of down-time. They operate by using high availability software to harness redundant computers in groups or clusters that provide continued service when system components fail.

High-fives

High-kingship of Ireland

High-class

High-dimensional data

High-density liporotein

High-level disinfected

High-availability clusters

High-frequency impulse-measurement

High-adventure

High-angle shot

High-explosive plastic

High-intensity discharge lamps (HID lamps) are a type of electrical gas-discharge lamp which produces light by means of an electric arc between tungsten electrodes housed inside a translucent or transparent fused quartz or fused alumina arc tube. This tube is filled with noble gas and often also contains suitable metal or metal salts. The noble gas enables the arc's initial strike. Once the arc is started, it heats and evaporates the metallic admixture. Its presence in the arc plasma greatly increases the intensity of visible light produced by the arc for a given power input, as the metals have many emission spectral lines in the visible part of the spectrum. High-intensity discharge lamps are a type of arc lamp.Brand new high-intensity discharge lamps make more visible light per unit of electric power consumed than fluorescent and incandescent lamps, since a greater proportion of their radiation is visible light in contrast to infrared. However, the lumen output of HID lighting can deteriorate by up to 70% over 10,000 burning hours.Many modern vehicles use HID bulbs for the main lighting systems, some applications are now moving from HID bulbs to LED and laser technology. However, this HID technology is not new and was first demonstrated by Francis Hauksbee in 1705.

High-altitude wind energy

High-definition video

High-fructose maize syrup

High-field asymmetric waveform ion mobility spectrometry

High-level design

High-altitude adaptation in human

High-flyer Wrestler

High-Watt Crucifixers

High-k Dielectric

High-level document

High-input agriculture

In metrology, high-definition metrology is where measurements are made densely across the observable extent of that surface or object and displayed with high-definition. In that sense, high-definition is analogous to high definition television.High-definition measurements are therefore contrasted with "global" or "overall" or "statistical" measurements which provide some single or coarsely sampled measurement values that do not define the surface or object attribute variations in detail. Whereas the latter measurements may provide an indication of some overall characteristic of the item being measured, high-definition metrology is used where it is desired to also know more precisely at what location certain attributes occur, or where their values are outside of some specified range of values. In precision manufacturing, for example, this knowledge may enable remedial action to be taken to correct or control process variables that affect the dimensions of a manufactured part or assembly.

High-end audio

High-capacity floppy

High-frequency traders

High-hat cymbal

High-frequency word

High-hat triplefin

High-level equilibrium trap

High-leg delta (also known as wild-leg, stinger leg, bastard leg, high-leg, orange-leg, or red-leg delta) is a type of electrical service connection for three-phase electric power installations. It is used when both single and three-phase power is desired to be supplied from a three phase transformer (or transformer bank). The three-phase power is connected in the delta configuration, and the center point of one phase is grounded.

High-gain antenna