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极限效率
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  efficiency limit
     The Discussion About the Efficiency Limit of Any Cycle by Using Entropy
     用熵讨论任意循环的极限效率
短句来源
  limit efficiency
     A Discussion of Limit Efficiency for Arbitrary Cycle with P-V Graph
     任意循环极限效率的P-V图证明的再讨论
短句来源
     Investigation on Limit Efficiency of CdS/CdTe Heterojunction Solar Cells
     CdS/CdTe异质结太阳电池极限效率的计算
短句来源
     Theoretical analysis proves that the limit efficiency of the parallel DFP algorithm in this paper is 1 as n→∞.
     该算法与已有文献中相应的SIMD算法相比,其并行度大大提高,效率比相应的SIMD算法高,算法的理论分析证明该文中的并行DFP算法,当n→∞时,极限效率趋于1。
短句来源
     A more explicit and more convenient method is introduced in the discussion of limit efficiency for arbitrary cycle with circumscribed Carnot cycle on P-V graph.
     给出了在P-V图上用外切卡诺循环证明任意循环极限效率的更直观、更简便的方法
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  “极限效率”译为未确定词的双语例句
     The results of chemical equilibrium calculation indicate that the theoretical maximum efficiency of N_2H_4 reducing NOx is above 91.45% at mid-and-high temperature (400~800℃).
     化学平衡的计算结果表明,在中高温区(400~800℃)N_2H_4还原NOx的极限效率(即反应平衡时的效率)均在91.45%以上。
短句来源
     At the same time,the efficiency at certain junction depth and transitional region thickness of Cu2S/CdS solar cell can be evalueted.
     利用该式推算出Cu_2S/CdS电池的实际可能达到的效率为12.5%,极限效率为18%。
短句来源
     In these a-Si solar cells, their intrinsic layer are fully depleted and drift distance δ_p of holes are≥depletion widths w, so that, inter-collection efficiency S_(Ri)=1. In this case, near 20% and orer 18% of limited theoreticaly conversion efficiency were obtained, respectively at 0.84μ and 0.55μ total thickners of a-Si solar cells.
     在满足d(i层厚度)=ω(耗尽区宽度)和空穴漂移长度δp>ω,也就是S_(Ri)(收集效率)=1的条件下,总厚度为0.84μ的多能隙pin二重结α-Si电池在AM_1下的理论极限效率接近于20%,当总厚度减为0.55μ时,还保持在18%以上。
短句来源
     This implies that the interface state cannot merely be regarded as carrier recombination centres, and impacts of interfacial layer on devices need further investigation. Theoretical maximum efficiency of up to 31 17%(AM1 5, 100mW/cm 2, 0 40—1 1μm) has been obtained with BSF structure, idealized light trapping effect( R F=0, R B=1) and no interface states.
     最后计算得到了这种电池理想情况下 (无界面态、有背面场、正背面反射率分别为 0和 1)的理论极限效率 ηmax=31 17% (AM1 5 ,10 0mW cm2 ,0 4 0— 1 10 μm波段 ) .
短句来源
     A discussions on the maximum cycle efficiency by using graphics
     热机循环极限效率的图像讨论法
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  相似匹配句对
     The Efficiency Limit for silicon solar cell
     硅高效太阳电池的效率极限
短句来源
     Coupling efficiency limits of super-microball lens
     超微球透镜的耦合效率极限
短句来源
     LIMIT PLAY A DIRTY TRICK
     极限使坏
短句来源
     enhancing efficiency;
     提高效率;
短句来源
     Efficiency of "Eight-Part Essay
     “八股文”的效率
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  limiting efficiency
It is established that, in terms of this theory, there exists a limiting efficiency of an abrupt change in the angular momentum, which, however, does not attain the value proposed in the model of strong collisions (Jdiffusion).
      
The method allows the limiting efficiency of the frequency doubling to be achieved.
      
Nevertheless, the theory of the intermediate band solar cells predicts an enhancement of the solar cell efficiency well above the limiting efficiency of single gap solar cells (63.2% vs.
      
For the AM1.5 solar irradiation conditions, the open-circuit voltage and short-circuit current, as well as values of limiting efficiency, are determined.
      
It is demonstrated that the generally accepted treatment of the second law of thermodynamics is incorrect when the statement of the maximum limiting efficiency of the forward Carnot cycle is applied to the reverse cycles.
      
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  efficiency limit
ostreatus form Florida rapidly colonized the substrate and, in the first phase, yielded more than 10% of fresh fruiting bodies per initial mass of the wet substrate, which is considered, to be the efficiency limit of this technology.
      
The deviation from the theoretical efficiency limit has been decreased by a factor 2.5 in our device, due to saturation of the pumping (sequence band) radiation.
      
Here T0 is an experimentally determined constant and 0 is the low-temperature maximum quantum efficiency limit.
      
Moreover, Petitioners' argument also fails to take into account the Permit's 98% control efficiency limit.
      
Multijunction cells, in contrast, have a much higher efficiency limit and therefore they can progress in efficiency for a longer time.
      
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  limit efficiency
We analyse the dependence of limit efficiency on the main features of devices as threshold frequency and working temperature.
      
Our results show that the limit efficiency of conversion of collected radiation is slightly higher in the case of concentrating devices with respect to nonconcentrating ones.
      
Different factors, could limit efficiency (RF breakdown, random technological spread of parameters, and heating of system), are simulated.
      
Limit efficiency of the transformation of IR to visible radiation in the YF3:Yb,Er system
      
On limit efficiency of SW radio interference compensation in spatial signal processing
      
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Using Auger electron spectroscop,the depth profile information of different efficiency on Cu2S/CdS thinfilm solar cell had been determined Thus,we obtained the gradual junction structure of Cu2S/CdS thinfilm solar cells which contains a high density layer of Cu2S with a maximum thickness 1000 A and a Cu transitional region of depth~10000 A The solar cell efficiency is found to be proportional to the thickness (junetion depth) of Cu2S layer and it has an inverse ratio with transitional region depth of Cu.Based...

Using Auger electron spectroscop,the depth profile information of different efficiency on Cu2S/CdS thinfilm solar cell had been determined Thus,we obtained the gradual junction structure of Cu2S/CdS thinfilm solar cells which contains a high density layer of Cu2S with a maximum thickness 1000 A and a Cu transitional region of depth~10000 A The solar cell efficiency is found to be proportional to the thickness (junetion depth) of Cu2S layer and it has an inverse ratio with transitional region depth of Cu.Based on these experimental results was plotted the curve for solar cell effic.iency-△Pt.The experimental formulae of Cu2S/CdS solar cell efficiency and the high density Cu2S layer thickness (junction depth xj) were thus derived.It is shown that the actual possible efficiency of Cu2S/CdS film solar cell is 12.5% which the maximum efficiency is 18%.At the same time,the efficiency at certain junction depth and transitional region thickness of Cu2S/CdS solar cell can be evalueted.

用扫描电子能谱仪测定了不同效率薄膜Cu_2S/CdS电池的AES谱图。该电池为缓变结,有一层高浓度cu_2S层区,其最大厚度≤1000(?),铜过渡区厚度~10000(?);电池效率与高浓度Cu_2S层厚度(结深)成正比,与铜过渡区厚度成反比。根据实验值作出的电池效率—ΔP·t曲线,导出了效率与高浓度Cu_2S层厚度(结深x_f)关系的经验公式。利用该式推算出Cu_2S/CdS电池的实际可能达到的效率为12.5%,极限效率为18%。

It is known that an effective way to enhance seismic wave energy excited by an air gun is directly to make the air gun explore in mud flat. This way has been successfully used in seismic exploration in lake and marsh areas. In this paper, a physical model to describe how the seismic wave is excited by an air gun inserted in mud flat is presented, and an expression of compressional wave in far field is derived from it. It is shown that the far field seismic wave excited in this may is an attenuating sine wave,...

It is known that an effective way to enhance seismic wave energy excited by an air gun is directly to make the air gun explore in mud flat. This way has been successfully used in seismic exploration in lake and marsh areas. In this paper, a physical model to describe how the seismic wave is excited by an air gun inserted in mud flat is presented, and an expression of compressional wave in far field is derived from it. It is shown that the far field seismic wave excited in this may is an attenuating sine wave, whose amplitude and frequency spectrum are not only related to the air pressure and volume of the air gun, but more sensitively dependent on the mechanics property of mud flat as well. Theoretically the maximum transfer efficiency from the potential energy of a high pressure air ball to the mechanical work on mud flat is about 28%.

将气枪直接插入到淤泥中激发是提高产生地震波效率的有效措施,这种方法已在浅水湖泊地带的地震勘探中得到应用。本文给出了一个描述这种激发过程的物理模型,得到了远场压缩波形的计算式。分析表明,用这种方式所激发的远场地震波是一个衰减的正弦波,其振幅、周期及时间衰减因子除与气枪气室的容积和气压有关外,更多的是依赖于淤泥的力学性质。高压气球用于对淤泥作机械功的极限效率约为28%。

For the design and calculation of two fold junction a-Si Solar cells consisting of a-Si_(1-x)Ge_x: H material with different bandgap (Eg_1=1.9ev and Eg_2=1.5ev). We Suggested a new method which is different from Marfaing's method but more reasonable. In these a-Si solar cells, their intrinsic layer are fully depleted and drift distance δ_p of holes are≥depletion widths w, so that, inter-collection efficiency S_(Ri)=1. In this case, near 20% and orer 18% of limited theoreticaly conversion efficiency were obtained,...

For the design and calculation of two fold junction a-Si Solar cells consisting of a-Si_(1-x)Ge_x: H material with different bandgap (Eg_1=1.9ev and Eg_2=1.5ev). We Suggested a new method which is different from Marfaing's method but more reasonable. In these a-Si solar cells, their intrinsic layer are fully depleted and drift distance δ_p of holes are≥depletion widths w, so that, inter-collection efficiency S_(Ri)=1. In this case, near 20% and orer 18% of limited theoreticaly conversion efficiency were obtained, respectively at 0.84μ and 0.55μ total thickners of a-Si solar cells.

在采用α-Si_(1-x)Ge_x:H材料设计与计算多能隙Pin多重结α-Si太阳电池的过程中,我们提出了一种不同于Marfaing的更加合理的方法。在满足d(i层厚度)=ω(耗尽区宽度)和空穴漂移长度δp>ω,也就是S_(Ri)(收集效率)=1的条件下,总厚度为0.84μ的多能隙pin二重结α-Si电池在AM_1下的理论极限效率接近于20%,当总厚度减为0.55μ时,还保持在18%以上。

 
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