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性能界限     
相关语句
  performance bound
     Finite Time Thermodynamic Performance Bound for Quantum Carnot Engine at Maximum Point
     E目标下量子卡诺热机有限时间热力学性能界限
短句来源
     Finite Time Thermodynamic Performance Bound and Optimization Criterion for Forward and Reverse Quantum Stirling Cycles
     正反向量子斯特林循环有限时间热力学性能界限和优化准则
短句来源
     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.
     强调了不能用所谓有限时间经济性能界限来代替有限时间热力学性能界限
短句来源
     The finite time thermodynamic performance bound and optimization criterion for these cycles are derived.
     在经典极限下,导出了循环的有限时间热力学性能界限和优化准则.
短句来源
  performance limit
     Comprising the finite time thermodynamics,nonequilibrium statistical theory and exergeocnomics,the maximum exergeoeconomic profit and performance limit are derived in the article.
     将有限时间热力学、非平衡量子统计理论和火用经济学相结合,导出了量子斯特林制冷机的最大利润率以及对应的性能界限
短句来源
     PERFORMANCE LIMIT OF FINIET TIME THERMODYNAMICS FOR RUEL CELL
     燃料电池的有限时间热力学性能界限
短句来源
     Relation between performance limit and entropy change rate of reservoirs for irreversible Carnot heat pumps
     不可逆卡诺热泵的性能界限与冷热源熵变化率的关系
短句来源
     Performance limit of ffinite time hermodymamics for fuel cell is derivedby using the heory of non-eguilibrium thermodynamics and finite time thermodynamics.
     应用有限时间热力学与非平衡态热力学相结合的方法,得到了燃料电池的有限时间热力学性能界限
短句来源
  performance bounds
     Study on Performance Bounds of RS Coded Hybrid DS-SFH Spread Spectrum Multiple Access Communications
     混合DS-SFH扩频多址通信系统采用RS码的性能界限的分析
短句来源
     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.
     基于传热规律Q∝△Tn,研究一类受热阻、热漏及循环内部不可逆性影响的卡诺制冷机,导出制冷机的最佳制冷率与制冷系数间的相互关系,并阐述了这一关系对研究实际制冷机的优化性能及性能界限具有重要意义.
短句来源
     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.
     以生态学函数为目标,研究传热规律为q△(1/T)的三热源热泵的优化性能,获得一些新的性能界限
短句来源
     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.
     讨论了三种不同情况下(εR)_(max)的主要特征,所得结果将有助于对实际制冷机各种性能界限的进一步了解,并可对制冷机最佳工作状态的选择提供一些新的理论依据。
短句来源
     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.
     基于不可逆三热源热泵模型,应用最大泵热率与性能系数间的关系,导出三热源热泵损率与性能系数以及损率与泵热率间的优化关系,并由此讨论三热源热泵的有关性能界限
短句来源
更多       
  performance limits
     Performance limits of irreversible Carnot engine
     不可逆卡诺热机的性能界限
短句来源
     Performance Limits for Internal Combustion Engine Cycle Within Temperature and Pressure Restraints
     温压约束下内燃机循环的性能界限
短句来源
     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.
     在接收理论方面,分析了AWGN信道下应采用的接收机模型,同时针对室内无线通信的特点,提出了在时变多径信道下的瑞克接收机模型,并推导了未采用信道编码时系统所能达到的性能界限
短句来源

 

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      performance bound
    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.
          
    更多          
      performance limit
    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.
          
    更多          
      performance bounds
    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.
          
    更多          
      performance limits
    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.
          
    更多          


    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.

    本文讨论受热阻影响的二热源制冷循环的最优化问题。对循环周期τ和工质在膨胀过程中的熵变σ给定的情况下,导得了各种性能界限。这些性能界限比起可逆界限更有现实意义,指明了不可逆性和约束条件对循环性能的具体影响。此外,还指出,循环时间的最优分配是放热的时间比吸热的时间长。

    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.

    在内可逆卡热效机模型的基础上,进一步考虑循环中除了传热以外的其它不可逆性,建立不可逆卡诺热机模型。由此导出不可逆卡诺热机的最佳效率与供热率间的关系,以及一些新的性能界限

    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.

    指出二热源制冷机的制冷系数ε与制冷率R 的乘积εR存在最大界限(εR)_(max)。它是制冷机的一个重要性能参数。讨论了三种不同情况下(εR)_(max)的主要特征,所得结果将有助于对实际制冷机各种性能界限的进一步了解,并可对制冷机最佳工作状态的选择提供一些新的理论依据。

     
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