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.

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℃).

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.

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.

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.

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.

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

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.

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％.

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.