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换向时间
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  switch time
For an H+ ion energy of 14 MeV, the unit provides a rectangular scanning raster with a linear size of ±300 μm on the target and a minimal point-to-point switch time of 200 μs.
      
Optimization on temperature efficiency and switch time of thin-walled regenerator with perturbation analysis
      
The results show that there is a temperature efficiency peak and the corresponding optimal switch time.
      
Optimal switch time is directly proportional to the matrix thickness.
      
The solid heat conduction along the flow direction and the regenerator heat storage capacity of the unit volume have no impact on maximum temperature efficiency and optimal switch time.
      
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  exchange time
This effect is caused by the finiteness of the interelectron energy exchange time during the laser action.
      
The overlap integral between the optical field distribution and the stress distribution can be enhanced simply by prolonging the proton-exchange time.
      
With all latices the hydrogen-metal ion exchange tends to be a complete one provided this process is given a sufficiently long exchange time.
      
At a luminal perfusion rate of 40 nl/min, the lag time was some 20 sec and 80 % fluid exchange time some 3 sec.
      
Variability in water-exchange time between Tokyo Bay and the Pacific Ocean during winter is investigated based on the results of intensive field observation from November 2000 to March 2001.
      
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  switching time
The switching time is ≤600 ns with current control and ≤50 ns with the microwave power modulation.
      
It is found that stochastic resonance is observed under slow (compared with the Kramers switching time) dichotomic noise and the signal-to-noise ratio (SNR) has a maximum for a noise amplitude equal to static bias.
      
Switching time dispersion and retention of bistable states in Langmuir-Blodgett ferroelectric films
      
Ultrafast switching of optical nonlinearity in molecular aggregates with a typical switching time of about 450 fs is demonstrated.
      
The use of several loops makes it possible to significantly reduce energy expenditures on switching and to reduce the switching time by approximately a factor of 10.
      
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By estimating the efficiency of the ideal piston now regenerative heat exchanger with the theory of dispersion model of temperature nat of the solid, the relations between the efficiency and the switch time of regenerator were presented, and a conclusion was raised that the efficiency of the ideal piston flow regenerative beat exchanger can be approached the limit value when the switch time is less than a constant. An available reference is put forward for the selecting of the switch time and the further researching...

By estimating the efficiency of the ideal piston now regenerative heat exchanger with the theory of dispersion model of temperature nat of the solid, the relations between the efficiency and the switch time of regenerator were presented, and a conclusion was raised that the efficiency of the ideal piston flow regenerative beat exchanger can be approached the limit value when the switch time is less than a constant. An available reference is put forward for the selecting of the switch time and the further researching on the thermal characteristics of the regenerative heat exchangers.

利用畜热器内温度固体前沿扩展模型,通过对理想活塞流蓄热式热交换器换热效率的评价.得出在蓄热器结构一定时,热交换效率与换向时间的相互关系.提出当换向时间小于某一值时,热交换器的换热效率可达极限效率.为蓄热式热交换器换向时间的选取和换热特性的进一步研究提供了一定的参考依据.

The switch time and the matter flow rate pass through the section area of the exchanger were approved to be the important facts influencing the efficiency of the regenerative heat exchanger of packed bed by the experiment,and the mathematical expression of the efficiency of the heat exchanger was proved to be more accurate in describing the relationship between the efficiency and the switch time of the heat exchanger.Thus,an important theoretic approach was put forward,for the further investigation regarding...

The switch time and the matter flow rate pass through the section area of the exchanger were approved to be the important facts influencing the efficiency of the regenerative heat exchanger of packed bed by the experiment,and the mathematical expression of the efficiency of the heat exchanger was proved to be more accurate in describing the relationship between the efficiency and the switch time of the heat exchanger.Thus,an important theoretic approach was put forward,for the further investigation regarding the performance of regenerative heat exchanger,as well as for the design of regenerative heat exchanger.\=

依据蓄热式热交换器的换热实验,证实了在结构一定时,换向时间和流经热交换器截面的流量,是影响蓄热式热交换器换热效率的两个重要因素;研究得出的热交换器效率的计算式可较精确地描述效率和换向时间之间的定量关系。为蓄热式热交换器的进一步理论研究、设计和操作提供了重要的参考依据。

Through the test of regenerative heat exchanger, the writer find out that the selector time and the volume passed through the heat exchanger are two important factors to influence the heat exchanger efficiency. They have found out the qualitative relation between the two factors. The test result can give a reference to the research, design and operation of the regenerative heat exchanger.

依据蓄热式热交换器的换热实验,揭示了在结构一定时,换向时间和通过热交换器截面的流量是影响蓄热式热交换器换热效率的两个重要因素,以及它们之间的定性关系。为蓄热式热交换器的进一步研究、设计和操作提供了重要的参考依据。

 
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