negative temperature coefficient การใช้

• However, the same negative temperature coefficient comes into play with fast nuclear reactors.
• Materials with a negative temperature coefficient have been used in floor heating since 1971.
• This property, known as the negative temperature coefficient of reactivity, makes PWR reactors very stable.
• One of the biggest disadvantages is that the battery exhibits a very marked negative temperature coefficient.
• This is related to the material's temperature coefficient of resistance ( TCR ) specifically its negative temperature coefficient.
• It has a negative temperature coefficient of resistance, since the number of free charge carriers increases with temperature.
• Polypropylene film capacitors have a linear, negative temperature coefficient of capacitance of ?, 5 % within their temperature range.
• Safety concepts rely on a negative temperature coefficient of reactivity and a large possible temperature rise to limit reactivity excursions.
• Much of the reactor power control during steady-state operation comes as a result of the coolant water's negative temperature coefficient.
• Avalanche diodes have a small positive temperature coefficient of voltage, where diodes relying on the Zener effect have a negative temperature coefficient.
• Where bipolar junction transistors are used, the bias network must compensate for the negative temperature coefficient of the transistors'base to emitter voltage.
• The electrical resistivity of doped silicon, like other semiconductors, has a negative temperature coefficient, meaning that it conducts more current at higher temperatures.
• The negative temperature coefficient avoids excessive local heating beneath carpets, bean bag chairs, mattresses, etc ., which can damage wooden floors, and may infrequently cause fires.
• Negative temperature coefficient ( NTC ) thermistors and resistors are two of the simplest options, with cool-down time and power dissipation being their main drawbacks, respectively.
• The diode voltage has a negative temperature coefficient ( i . e . it decreases with increasing temperature ), and the junction voltage difference has a positive temperature coefficient.
• The presentation by Hyperion at the ANS 2009 conference mentions the use of the Doppler inherent negative temperature coefficient of reactivity in this reactor as a means of control.
• However, studies have shown that, due to its short-chain length, methyl butyrate does not reproduce well the negative temperature coefficient ( NTC ) behaviour and early CO 2 formation characteristics of real biodiesel fuels.
• You always need a current limiting mechanism ( usually a resistor ), particularly as the junctions have a negative temperature coefficient of voltage-which means as they get hotter, they pass more current and get even hotter.
• ZrB 2 / 60 % SiC composites have been used as novel conducting ceramic heaters which display high oxidation resistance and melting points, and do not display the negative temperature coefficient resistance property of pure silicon carbide.
• For his work in developing a negative temperature coefficient electrical cable, a major improvement in blanket technology, G . E . presented him in 1949 with its Charles A . Coffin Award, the company's highest honor for an employee.