It is emphasized that the so called finite time exergo-economic performance bound can not be used instead of the finite time thermodyuamic performance bound.

Comprising the finite time thermodynamics,nonequilibrium statistical theory and exergeocnomics,the maximum exergeoeconomic profit and performance limit are derived in the article.

Performance limit of ffinite time hermodymamics for fuel cell is derivedby using the heory of non-eguilibrium thermodynamics and finite time thermodynamics.

By applying the heat transfer law Q∝△Tn, a class of irreversible Carnot refrigerators affected by heat resistance, heat leak and internai irreversibilities is investigated, and the relationship between the optimal refrigeration rate and the performance coefficient of the refrigerators is derived. Moreover, the significance of using this relationship to study the optimal performance and performance bounds of a real refrigerator is also expounded.

The optimal performance of a three-heat-source heat pump for the heat-transfer law of q △(1/T) is studied by taking an ecological criterion as an objective function, and some new performance bounds are derived.

The results obtained here will be helpful to the further understanding of the various performance bounds of practical refrigerators, and they can provide some new theoretical bases for the optimal choice of the working state of refrigerators.

The optimal relations between the exergy loss rate and the coefficient of performance and the relationship between the exergy loss rate and the rate of heat pumping were derived,based on the model of an irreversible three-heat-source heat pump and the relation between the optimal rate of heat pump and the coefficient of performance. The relevant performance bounds of the three-heat-source heat pump were discussed.

About the reception theory, it analyses the receiver model that applies to the AWGN channel, puts forward a Rake receiver model in time-variant multi-path channel environment according to the characteristics of indoor wireless communication and also deduces its system performance limits without channel coding.

We give the exact worst case performance bound of MLPT proposed by Lee.

By packing large items into appropriate bins and closing appropriate bins, we can derive an algorithm with worst-case performance bound 1.7 fork≥3.

We were successful in deriving the worst case performance bound of one procedure.

Another heuristic with a better worst-case performance bound is presented for the case with a zero earliness penalty.

It is shown that the lower tail performance bound of the depth based trimmed mean is essentially the same as its halfspace depth and the breakdown point.

Furthermore, comparisons with existing experimental results show that the porous-medium model is reasonably adequate for the prediction of the capillary performance limit of a micro heat pipe.

The performance limit of the pecstrum for efficient object classification, as the size of the objects decreases, is examined and the factors which affect this limit are discussed.

The requirements of a linear phase response and guaranteed stable performance limit the design to a finite impulse response (FIR) structure.

Performance Limit of Chaotic Digital Waveform Communication Systems: Approach of Maximizing a Posteriori Probability

The results for the capacitance at high frequency are used to predict the high frequency performance limit of such devices.

Through analyzing data flow in networked RAID storage system, we established its analytical model utilizing closed queueing networks and studied the performance bounds of the system I/O response time.

Experimental results show that the theoretical bounds are found to be in agreement with the actual performance bounds of the networked RAID storage system and reflect the dynamic trend of its actual performance.

For identical parallel machine scheduling with jobs' dynamic arrivals, the tight performance bounds of active schedules under the measurement of four popular objectives are respectively given in this paper.

We use Lipschitz properties of the cost functional and of the neural networks to derive the relationship between performance bounds and sample sizes within the framework of Valiant's probably approximately correct learning.

The scheme is analyzed, performance bounds are obtained, and a near optimal k is computed.

A mathematical relation is shown (in integral as well as in criterial form) for calculating the performance limits of heat pipes.

This effect of viewing the body surface was absent or reversed in tasks that either did not require a spatial computation or in which judgements were well above performance limits.

The results demonstrate that in spite of a successful performance, children construct the task of pedaling differently when compared to adults, especially when they are pushed to their performance limits.

Performance limits of acoustooptic light deflectors due to thermal effects

To corroborate the theoretical results, performance limits for typical operating modes have been measured.

Optimization of two-reservoir cooling cycle affected by thermal resistance is discussed in this paper. We have derived various performance bounds for given cycle time (?) and entropy change (?) of working substance during expansion process.These performance bounds are significantly more realistic than the reversible one. They reveal the specific effect of irreversibility and constrained conditions on cycle performance. In addition, it has been shown that, in an optimal allocated cycle time, the time duration...

Optimization of two-reservoir cooling cycle affected by thermal resistance is discussed in this paper. We have derived various performance bounds for given cycle time (?) and entropy change (?) of working substance during expansion process.These performance bounds are significantly more realistic than the reversible one. They reveal the specific effect of irreversibility and constrained conditions on cycle performance. In addition, it has been shown that, in an optimal allocated cycle time, the time duration of heat releasing is longer than that of heat absorbing.

The author further considers the irreversibilities other than heat conduction, and establishes a model of irreversible Garnet engine based on the endoreversible Carnot engine. From it, the relation between optimal efficiency and rate of heat-input, and some new bounds of performance are derived.

It is first pointed out that there exists a maximum bound (εR)max for the product εR of the coefficient of performance e and the rate of refrigeration R of a two heat-source refrigerator, and (εR)max is an important performance parameter of refrigerators. Then the main characters of (εR)max are discussed under three different cases. The results obtained here will be helpful to the further understanding of the various performance bounds of practical refrigerators, and they can provide some new theoretical bases...

It is first pointed out that there exists a maximum bound (εR)max for the product εR of the coefficient of performance e and the rate of refrigeration R of a two heat-source refrigerator, and (εR)max is an important performance parameter of refrigerators. Then the main characters of (εR)max are discussed under three different cases. The results obtained here will be helpful to the further understanding of the various performance bounds of practical refrigerators, and they can provide some new theoretical bases for the optimal choice of the working state of refrigerators.