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searching for Negative temperature 103 found (127 total)

Temperature coefficient (1,676 words) [view diff] exact match in snippet view article find links to article

temperature. Materials with a negative temperature coefficient have been used in floor heating since 1971. The negative temperature coefficient avoids excessive

Thermistor (4,123 words) [view diff] no match in snippet view article find links to article

runaway. Thermistors are categorized based on their conduction models. Negative-temperature-coefficient (NTC) thermistors have less resistance at higher temperatures

Avalanche diode (632 words) [view diff] exact match in snippet view article find links to article

coefficient of voltage, whereas diodes relying on the Zener effect have a negative temperature coefficient.[dubious – discuss] The voltage after breakdown varies

Sound speed gradient (354 words) [view diff] exact match in snippet view article find links to article

the gradient. When the sun warms the Earth's surface, there is a negative temperature gradient in atmosphere. The speed of sound decreases with decreasing

Methyl butyrate (318 words) [view diff] exact match in snippet view article find links to article

short-chain length, methyl butyrate does not reproduce well the negative temperature coefficient (NTC) behaviour and early CO2 formation characteristics

Inrush current limiter (517 words) [view diff] exact match in snippet view article find links to article

components and avoid blowing fuses or tripping circuit breakers. Negative temperature coefficient (NTC) thermistors and fixed resistors are often used

Brokaw bandgap reference (671 words) [view diff] exact match in snippet view article find links to article

temperature coefficient and another internal voltage source that has a negative temperature coefficient. By summing the two together, the temperature dependence

ZBLAN (2,628 words) [view diff] exact match in snippet view article find links to article

transition temperature (Tg) of 260–300 °C, low dispersion and a low and negative temperature dependence of refractive index dn/dT. The first fluorozirconate glass

Inrush current (1,463 words) [view diff] exact match in snippet view article find links to article

(Non-graphitized) carbon-filament lamps, rarely used now, have a negative temperature coefficient and draw more current as they warm up; an "inrush" current

Ted Taylor (physicist) (4,031 words) [view diff] exact match in snippet view article

prompt negative temperature coefficient was groundbreaking because it provided a markedly safer reactor even in the event of misuse. With the negative temperature

Pressurized water reactor (4,326 words) [view diff] exact match in snippet view article find links to article

reaction to slow down, producing less heat. This property, known as the negative temperature coefficient of reactivity, makes PWR reactors very stable. This process

A2W reactor (658 words) [view diff] exact match in snippet view article find links to article

steady-state operation comes as a result of the coolant water's negative temperature coefficient. The power of the reactor is determined by the instantaneous

List of temperature sensors (444 words) [view diff] case mismatch in snippet view article find links to article

resistance when subjected to a corresponding change in body temperature. Negative Temperature Coefficient (NTC) thermistors exhibit a decrease in electrical resistance

Morgue (1,291 words) [view diff] exact match in snippet view article find links to article

decomposition, which continues at a slower rate than at room temperature. Negative temperature Bodies are kept at between −10 °C (14 °F) and −50 °C (−58 °F). Usually

Toshio Narahashi (436 words) [view diff] exact match in snippet view article find links to article

basis for insecticidal actions Nerve sensitivity as a basis for the negative temperature dependence of insecticidal action of DDT Nerve sensitivity as a major

Aurora nuclear reactor (533 words) [view diff] exact match in snippet view article find links to article

reactor. According to the designers, the reactor will have a "large negative temperature reactivity coefficient", lacks pumps and valves, uses heat pipes

Bohm diffusion (2,106 words) [view diff] exact match in snippet view article find links to article

McNamara put forward a 2d guiding center plasma model. The concepts of negative temperature state, and of the convective cells contributed much to the understanding

Thermal paste (849 words) [view diff] exact match in snippet view article find links to article

cause a runaway to catastrophic failure of the device due to the negative temperature coefficient property of semiconductors. Factory PCs and laptops—although

Constantan (714 words) [view diff] exact match in snippet view article find links to article

[2%] ). In 1887, Edward Weston discovered that metals can have a negative temperature coefficient of resistance, inventing what he called his "Alloy No

Exponential decay (2,586 words) [view diff] case mismatch in snippet view article find links to article

radiogenic nuclide. Thermoelectricity: The decline in resistance of a Negative Temperature Coefficient Thermistor as temperature is increased. Vibrations: Some

Zener diode (2,334 words) [view diff] exact match in snippet view article find links to article

6 volts, the Zener effect is the predominant effect and shows a marked negative temperature coefficient. Above 5.6 volts, the avalanche effect dominates and

Dumont d'Urville Station (934 words) [view diff] exact match in snippet view article find links to article

penguin chicks. Some marine animals are equally present despite the negative temperature of the water. Among rare visitors to the archipelago, there are other

Current limiting (959 words) [view diff] exact match in snippet view article find links to article

components such as resistors (with power dissipation drawback), or negative temperature coefficient (NTC) thermistors are simple options while the positive

Voltage reference (716 words) [view diff] exact match in snippet view article find links to article

to the voltage developed across a diode. The diode voltage has a negative temperature coefficient (i.e. it decreases with increasing temperature), and

Aircraft Nuclear Propulsion (1,907 words) [view diff] exact match in snippet view article find links to article

which affected the outlet and inlet temperatures because of the negative temperature coefficient of reactivity. The ARE was operated at power for 221

Holtec International (1,123 words) [view diff] exact match in snippet view article find links to article

It has full passive cooling in operation and after shutdown and a negative temperature coefficient so that it shuts down at high temperatures. The heat

South Pacific convergence zone (1,276 words) [view diff] exact match in snippet view article find links to article

determine how the SPCZ varies with the IPO. When the IPO index has negative temperature anomalies, the SPCZ is displaced southwest and moves northeastward

Acheson process (1,050 words) [view diff] exact match in snippet view article find links to article

in depth, and the resistance drops as the carbon heats due to a negative temperature coefficient, causing the current to increase. Cool down takes weeks

Critical mass (3,168 words) [view diff] exact match in snippet view article find links to article

supercritical if cooled to higher density. Such a material is said to have a negative temperature coefficient of reactivity to indicate that its reactivity decreases

Methane (data page) (146 words) [view diff] exact match in snippet view article

temperature is equilibrium of vapor over liquid. Note that these are all negative temperature values. This box: view edit Except where noted otherwise, data

Minimum resolvable temperature difference (498 words) [view diff] exact match in snippet view article find links to article

and down until the pattern is "just resolvable." The positive and negative temperature differences are stored into a two dimensional array. The corresponding

Light-water reactor (3,329 words) [view diff] exact match in snippet view article find links to article

reaction to slow down, producing less heat. This property, known as the negative temperature coefficient of reactivity, makes PWRs very stable. In event of a

Incandescent light bulb (11,995 words) [view diff] exact match in snippet view article find links to article

were made from carbonized paper or bamboo. Carbon filaments have a negative temperature coefficient of resistance—as they get hotter, their electrical resistance

Reed Research Reactor (1,148 words) [view diff] exact match in snippet view article find links to article

natural circulation driven Light Water Reactor, with a very strong negative temperature coefficient. As such, it is impossible to overheat the reactor, even

Gen4 Energy (897 words) [view diff] exact match in snippet view article find links to article

the ANS 2009 conference mentions the use of the Doppler inherent negative temperature coefficient of reactivity in this reactor as a means of control.

Romashka reactor (435 words) [view diff] exact match in snippet view article find links to article

and light. Temperature was self-regulated through the use of a negative temperature reactivity coefficient. The successful demonstration of the Romashka

Negative mass (3,670 words) [view diff] exact match in snippet view article find links to article

bound.[citation needed] However, the negative matter portion gains negative temperature at the same rate, again balancing out. Geoffrey A. Landis pointed

Xenon arc lamp (2,143 words) [view diff] exact match in snippet view article find links to article

dental lighting, and search lights. Xenon short-arc lamps have a negative temperature coefficient like other gas discharge lamps. They are operated at

Heating element (3,651 words) [view diff] no match in snippet view article find links to article

Thick-film heaters can largely be characterized under two subcategories – negative-temperature-coefficient (NTC) and positive-temperature-coefficient (PTC) materials –

Stable salt reactor (2,411 words) [view diff] exact match in snippet view article find links to article

is required. This is made possible by the combination of a high negative temperature coefficient of reactivity and the ability to continually extract

Hot swapping (2,742 words) [view diff] exact match in snippet view article find links to article

slots. The pre-charge circuit might be a simple series resistor, a negative temperature coefficient (NTC) resistor, or a current-limiter circuit. Further

Silicon dioxide (6,938 words) [view diff] exact match in snippet view article find links to article

characteristics that are similar to those observed in liquid water: negative temperature expansion, density maximum at temperatures ~5000 °C, and a heat capacity

Thinking Electronic (250 words) [view diff] exact match in snippet view article find links to article

by over current, overvoltage or overheat. Portfolio includes NTC (negative temperature coefficient) and PTC (positive temperature coefficient) thermistors

Lithium iron phosphate battery (3,361 words) [view diff] exact match in snippet view article find links to article

manganese dioxide spinels through omission of the cobalt, whose negative temperature coefficient of resistance can encourage thermal runaway. The P–O

Microbolometer (1,840 words) [view diff] exact match in snippet view article find links to article

material's temperature coefficient of resistance (TCR) specifically its negative temperature coefficient. Industry currently manufactures microbolometers that

Pakistan Atomic Research Reactor (1,618 words) [view diff] exact match in snippet view article find links to article

235U ratio of temperature of 20 °C (68 °F) and provides a strong Negative temperature coefficient and thermal volume coefficients of reactivity. The PAEC

Diode (7,336 words) [view diff] exact match in snippet view article find links to article

variation in the thermal voltage term. Most diodes therefore have a negative temperature coefficient, typically −2 mV/°C for silicon diodes. The temperature

Atlantic Equatorial mode (1,666 words) [view diff] exact match in snippet view article find links to article

Increased rainfall relative to normal is typically associated with negative temperature anomalies over these tropical land areas. Some evidence suggests

Manganin (451 words) [view diff] exact match in snippet view article find links to article

sensitivity. In 1887 Edward Weston discovered that metals can have a negative temperature coefficient of resistance, inventing what he called his "Alloy No

Sylvia Grinnell Territorial Park (1,196 words) [view diff] exact match in snippet view article find links to article

first 23 years of that period, there were 14 years which displayed a negative temperature anomaly and 9 which displayed a positive one, whereas in the second

Zaryadye Park (1,199 words) [view diff] exact match in snippet view article find links to article

of development of the Far North. In one part of the pavilion, a negative temperature is maintained. For the thickness of the ice, freezing of about 70

Iqaluit (6,478 words) [view diff] exact match in snippet view article find links to article

first 23 years of that period, there were 14 years which displayed a negative temperature anomaly and 9 which displayed a positive one, whereas in the second

Thermodynamic potential (4,377 words) [view diff] exact match in snippet view article find links to article

impose that isothermal compressibility is positive and that for non-negative temperature, C P > C V {\displaystyle C_{P}>C_{V}} . Changes in these quantities

Washington State University Reactor (1,335 words) [view diff] exact match in snippet view article find links to article

ability is due to the fact that TRIGA fuel is designed with a prompt negative temperature coefficient of reactivity, which means that as the fuel heats up

John Forrest Kelly (673 words) [view diff] exact match in snippet view article find links to article

ended in the discovery of high resistance alloys of very low or even negative temperature co-efficients, were substantially carried out by Mr. Kelly under

Iodine pit (1,993 words) [view diff] exact match in snippet view article find links to article

average power of the reactor stays more or less unchanged. Strong negative temperature coefficient of reactivity causes damping of these oscillations, and

Persecution of Jews (5,643 words) [view diff] exact match in snippet view article find links to article

protection for religious and ethnic minorities; 4. there were fewer negative temperature shocks. 5. the impact of the Reformation and the Enlightenment may

Properties of metals, metalloids and nonmetals (9,191 words) [view diff] exact match in snippet view article find links to article

graphite. Mott and Davis note however that 'liquid europium has a negative temperature coefficient of resistance' i.e. that conductivity increases with

Nickel–cadmium battery (4,859 words) [view diff] exact match in snippet view article find links to article

biggest disadvantages is that the battery exhibits a very marked negative temperature coefficient. This means that as the cell temperature rises, the internal

Observer (meteorological) (1,095 words) [view diff] exact match in snippet view article

visibility temperature and dew point: measured in Celsius, "M" denotes negative temperature altitude: measured in inches of mercury, Hg The information can be

Electro-galvanic oxygen sensor (3,515 words) [view diff] exact match in snippet view article find links to article

rises about two to three percent per kelvin rise in temperature. A negative temperature coefficient resistor is used to compensate, and for this to be effective

Youngest Toba eruption (8,353 words) [view diff] exact match in snippet view article find links to article

decrease in precipitation occurs in the high emission scenario. Negative temperature anomalies return to less than 1 °C (1.8 °F) within 3 and 6 years

Medical thermometer (3,768 words) [view diff] exact match in snippet view article find links to article

is proportional to temperature. There are two types of products. •Negative temperature coefficient (NTC) devices are used in temperature sensing and are

Push–pull output (2,245 words) [view diff] exact match in snippet view article find links to article

junction transistors are used, the bias network must compensate for the negative temperature coefficient of the transistors' base to emitter voltage. This can

Operational amplifier applications (4,518 words) [view diff] exact match in snippet view article find links to article

input impedance. Produces a very low distortion sine wave. Uses negative temperature compensation in the form of a light bulb or diode. Operational amplifiers

Arlington County, Virginia (12,024 words) [view diff] exact match in snippet view article find links to article

90s. Hundred degree temperatures readings are rare, even more so negative temperature readings in Fahrenheit, last occurring August 13, 2016, and January

List of acronyms: N (3,831 words) [view diff] case mismatch in snippet view article find links to article

Territories (Canada) (postal symbol) NTC (i) National Training Center Negative Temperature Coefficient (thermistor) NTDS – (i) Naval Tactical Data System NTP

Resistor (8,301 words) [view diff] exact match in snippet view article find links to article

various quantities. The resistance of NTC thermistors exhibit a strong negative temperature coefficient, making them useful for measuring temperatures. Since

Kilopower (1,615 words) [view diff] exact match in snippet view article find links to article

design is self-regulating through design geometry that creates a negative temperature reactivity coefficient. In effect this means that as the power demand

Hydrogel (8,053 words) [view diff] no match in snippet view article find links to article

their UCST. However, polymers with LCSTs display an inverse (or negative) temperature-dependence, where their water-solubility decreases at higher temperatures

Ceramic engineering (7,572 words) [view diff] no match in snippet view article find links to article

"Resonant acoustic-mixing technology as a novel method for production of negative-temperature coefficient thermistors". Journal of Materials Science: Materials

Passive nuclear safety (3,350 words) [view diff] exact match in snippet view article find links to article

carried the uranium-233 fluoride fuel dissolved in it. The MSRE had a negative temperature coefficient of reactivity: as the FLiBe temperature increased, it

Molten-salt reactor (9,194 words) [view diff] exact match in snippet view article find links to article

currently used in conventional nuclear power generators. MSRs exploit a negative temperature coefficient of reactivity and a large allowable temperature rise

Vacuum tube (15,976 words) [view diff] exact match in snippet view article find links to article

Tungsten wire has a very low resistance when at room temperature. A negative temperature coefficient device, such as a thermistor, may be incorporated in

Heat equation (9,870 words) [view diff] exact match in snippet view article find links to article

heat energy per unit area through a surface is proportional to the negative temperature gradient across it: q = − k ∇ u {\displaystyle \mathbf {q} =-k\,\nabla

Nuclear reactor physics (4,255 words) [view diff] exact match in snippet view article find links to article

moderator is reduced and the reaction tends to slow down (there is a "negative temperature coefficient" in the reactivity of the core). Water is an extreme

Nickel niobate (597 words) [view diff] exact match in snippet view article find links to article

Xiaobo; Pang, Lufeng (May 2017). "Bismuth nickel niobate with small negative temperature coefficients of dielectric constant". 2017 Joint IEEE International

Nickel niobate (597 words) [view diff] exact match in snippet view article find links to article

Xiaobo; Pang, Lufeng (May 2017). "Bismuth nickel niobate with small negative temperature coefficients of dielectric constant". 2017 Joint IEEE International

White wine (16,124 words) [view diff] exact match in snippet view article find links to article

available to stabilize the wine: The first is to cool the wine to a negative temperature near freezing for several weeks. The potassium bitartrate crystals

Integral fast reactor (6,689 words) [view diff] exact match in snippet view article find links to article

mechanism that decreases the core power. This attribute is known as a negative temperature coefficient of reactivity. Most LWRs also have negative reactivity

Mechanical filter (6,383 words) [view diff] exact match in snippet view article find links to article

coefficient of Young's modulus. In general, Young's modulus has a negative temperature coefficient (materials become less stiff with increasing temperature)

Self-regulating heater (1,186 words) [view diff] exact match in snippet view article find links to article

material semiconductor properties. These materials have somewhat negative temperature coefficients at low temperatures and at high temperatures, however

Wind gradient (4,299 words) [view diff] exact match in snippet view article find links to article

in the 1960s. When the sun warms the Earth's surface, there is a negative temperature gradient in atmosphere. The speed of sound decreases with decreasing

Fermi 1 (7,183 words) [view diff] exact match in snippet view article find links to article

slowing the reaction speed and cooling the reactor back down. This negative temperature coefficient is highly desirable as it offers passive safety. However

Film capacitor (13,458 words) [view diff] exact match in snippet view article find links to article

capacitors are very low. Polypropylene film capacitors have a linear, negative temperature coefficient of capacitance of ±2,5 % within their temperature range

2022–23 North American winter (6,657 words) [view diff] exact match in snippet view article find links to article

experienced a temperature of −10 °F (−23 °C), the first double-digit negative temperature in the city since the 1950s. Nantucket, Massachusetts was −3 °F (−19 °C)

Nuclear facilities in Iran (8,815 words) [view diff] exact match in snippet view article find links to article

which contain Ag–In–Cd alloy and stainless steel, respectively. The negative temperature coefficient of reactivity of the system provides additional passive

List of IEC standards (17,153 words) [view diff] exact match in snippet view article find links to article

60534 Industrial-process control valves IEC 60539 Directly heated negative temperature coefficient thermistors IEC 60544 Electrical insulating materials

Liquid fluoride thorium reactor (14,398 words) [view diff] exact match in snippet view article find links to article

light water reactors: Inherent safety. LFTR designs use a strong negative temperature coefficient of reactivity to achieve passive inherent safety against

Insect development during storage (1,359 words) [view diff] exact match in snippet view article find links to article

hours to days. Two types of mortuary room may be used: positive and negative temperature morgues. Two main physiological responses to low temperature are

Glossary of electrical and electronics engineering (19,294 words) [view diff] exact match in snippet view article find links to article

conductivity between that of insulators and conductors; displays a negative temperature coefficient of resistance, and is also sensitive to light. The conductivity

Thermal inductance (1,142 words) [view diff] exact match in snippet view article find links to article

that the time derivative of the heat current is proportional to the negative temperature difference across the device, in analogy to an electric inductor

Transparent ceramics (7,707 words) [view diff] exact match in snippet view article find links to article

material's temperature coefficient of resistance (TCR) specifically its negative temperature coefficient. Industry currently manufactures microbolometers that

Gurzhi effect (1,003 words) [view diff] case mismatch in snippet view article find links to article

Zwart, J. W.; Bass, J.; Pratt, W. P.; Schroeder, P. A. (1984). "Negative Temperature Derivative of Resistivity in Thin Potassium Samples: The Gurzhi Effect

List of small modular reactor designs (5,314 words) [view diff] exact match in snippet view article find links to article

there are no coolant pumps. The reactor has both negative void and negative temperature coefficients. It uses a uranium oxide fuel with 235 U enrichment

Ultra-high temperature ceramic (7,603 words) [view diff] exact match in snippet view article find links to article

oxidation resistance and melting points, and do not display the negative temperature coefficient resistance property of pure silicon carbide. The metal-like

Boiling water reactor safety systems (8,158 words) [view diff] exact match in snippet view article find links to article

reached 540 °C (1,004 °F). Some relief comes at T+20 or so, as the negative temperature coefficient and the negative void coefficient slows the rate of temperature

Omega-level mutants (1,403 words) [view diff] exact match in snippet view article find links to article

before Krakoan Age Character Omega power Issue Iceman (Bobby Drake) Negative temperature manipulation X-Men Forever #3 (January 2001) Marvel Girl (Jean Grey)

Non-topological soliton (6,328 words) [view diff] exact match in snippet view article find links to article

\Phi } could occur at high temperature of the universe, due to the negative temperature correction to its mass: m ( T ) = m 2 − λ 2 / 2 {\displaystyle m(T)=m^{2}-\lambda

Schwarzschild's equation for radiative transfer (3,896 words) [view diff] exact match in snippet view article find links to article

atmosphere expands and cools as the pressure on it falls, producing a negative temperature gradient in the Earth's troposphere. When radiation travels upward

List of resistors (3,243 words) [view diff] exact match in snippet view article find links to article

various quantities. The resistance of NTC thermistors exhibit a strong negative temperature coefficient, making them useful for measuring temperatures. Since

Russell Caves (2,893 words) [view diff] exact match in snippet view article find links to article

covered with stones, Henry Russell fell asleep only briefly due to the negative temperature, but he experienced one of the most beautiful moments of his life

Small modular reactor (11,613 words) [view diff] exact match in snippet view article find links to article

a higher safety level is achieved by SMR concepts in principle." Negative temperature coefficients in the moderators and the fuels keep the fission reactions