查询词典 performance

In this paper, the regeneration performance of a Stirling refrigerator is discussed, This performance may be improved by using an appropriate mixture of several gases as the working substance which is put forward based on a strict equation of state.

该文从较精确的物态方程出发，讨论了斯特林制冷机的回热性能，并提出用适当的混合气体工质可改善斯特林制冷机的回热性能。

The analysis of the performance of HRSG water level control system shows that, under the disturbance of load and inlet working substance of HRSG, the unit response can be controlled effectively, and the unit stability and control quality can be improved, so the unit control performance is improved obviously.

对余热锅炉水位控制系统的特性分析表明，水位控制系统能够在负载和余热锅炉入口工质参数扰动下有效地控制机组响应特性，保证机组的稳定和控制品质，控制性能得到明显改善。

This paper analyzes the Yagi antenna structure and principle and the use of HFSS software Yagi antenna performance analysis and structural design, made to further improve and optimize the performance of the methods.

本文主要分析了八木天线的结构及原理，并利用HFSS 软件对八木天线的性能结构进行分析和设计，提出了进一步改进和优化性能指标的方法。

For example, Pudovkin in the "end of St. Petersburg," one in two shots on such series: First performance of front line combat soldiers lay dying in the mud; the other is the performance that was wild excitement of the zaibatsu were fictitious in the skyrocketing stock market.

例如普多夫金在《圣彼得堡末日》一片中，有这样两个镜头的对列：一是表现在前线上作战士兵奄奄一息地躺在泥里；另一个是表现那些兴奋的发了狂的财阀们在暴涨的股票市场上买空卖空。

3The microcosmic analysis of drill pipes: Through comparison metallographic analysis of drill pipes, this paper finds out the ultimate reason which its" performance are difference, then uses SEM to analyze drill pipes and studies crack and acanthopore, measures local chemistry component and the influence that Shot-peened to performance of drill pipes in it"s inside thickening transitional region, measures microcosmic rigidity of drill pipes.

本文的创新点：(1)提出了钻杆失效的过程和概念模型，即内表面缺陷-解理断裂-裂纹疲劳扩展-过载断裂，为解决钻杆失效分析中存在的困惑(各项基本检测参数基本合格，刺穿和断裂仍有发生)提出了分析方法和手段。

Using the one-atom theory, the electronic structures of Pt-electrocatalyst with fcc structure was determined as follows:(5dn)6.48 (5dc)2.02 (6sc)1.48(6sf)0.02. Compared to the result obtained by the first-principle method such as FP-LMTO, CASTEP, their results are in good agreement with each other. Comparing the calculations of physical properties such as lattice constants, cohesive energy and bulk modulus by OA method and first-principle method, the result obtained by OA method is in excellent agreement with experimental value, but the result obtained by first-principle method is not accordable. The relationship between the electronic structures and catalytic performance was explained qualitatively by OA method and first principle method according to its electronic structures. Because the d-orbital vacancies increases and static density is high around Fermi energy band, Pt has good catalytic performance.

摘 要：依据纯金属单原子理论确定面心立方结构电催化剂Pt的电子结构为(5dn)6.48(5dc)2.02-(6sc)1.48(6sf)0.02，与采用第一原理的FP-LMTO和CASTEP等方法所计算的电子结构相比较，其结果非常相近；由OA理论和第一原理方法计算的晶格常数、结合能、体弹性模量等物理参数进行比较，OA理论计算的结果与实验值较符合，而第一原理方法计算的结果与实验值相差较大；在此基础上用OA理论和第一原理方法研究了Pt的电子结构与催化性能的关系，由于d带空穴增多和费米能级附近态密度较高，导致金属Pt的催化性能很好。

The expression of performance requires some united systematic variations from the score, so this trend of exactness, evenness has gradually restricted the artistic creation. From the aspect of tradition, most of the performance conventions such as tempo flexibility, independence of melody and accompaniment, tenuto and agogic accent, over-dot, under-dot, notes in gales and unwritten arpeggiation etc. have a long history and they are usually part of the composer ' s expectation.

由于音乐表演的表现力因素必然要求演奏相对于乐谱有一定偏离，因此这种精确化、规整化的趋势从科学角度来看实际上是逐渐限制了艺术创造的基本空间；而从传统角度来看，诸如速度弹性、&旋律自由而伴奏保持严格速度&的声部错位、时值缓急重音、过符点、欠符点、不平均音符、和弦的琶音处理等演奏惯例大都具有久远的历史，时常是创作阶段完整艺术构思的一部分。

The expression of performance requires some united systematic variations from the score, so this trend of exactness, evenness has gradually restricted the artistic creation. From the aspect of tradition, most of the performance conventions such as tempo flexibility, independence of melody and accompaniment, tenuto and agogic accent, over-dot, under-dot, notes inegales and unwritten arpeggiation etc. have a long history and they are usually part of the composers expectation.

由于音乐表演的表现力因素必然要求演奏相对于乐谱有一定偏离，因此这种精确化、规整化的趋势从科学角度来看实际上是逐渐限制了艺术创造的基本空间；而从传统角度来看，诸如速度弹性、&旋律自由而伴奏保持严格速度&的声部错位、时值缓急重音、过符点、欠符点、不平均音符、和弦的琶音处理等演奏惯例大都具有久远的历史，时常是创作阶段完整艺术构思的一部分。

The same result can also be achieved when optimizing F8 function (Rastrigin's function). Comparing to EGA, KEGA is easy to realize and the increase of computation load can be neglected, but the performance of KEGA can be improved greatly. 2. To enhance the speed of AIA, two new methods of computing the concentration of antibody were developed. Simulation results for F8 and F15 (needle in haystack: type I) functions show that the two methods can improve the running speed of AIA more than 8. 5 times. 3. As to the drawback in defining antibody concentration, a new definition based on Euclidean distance between two antibodies and fitness is proposed. On this basis, a new AIA was constructed. The convergence performance are more better than that of AIA. 4. Combining king crossover with AAIA and DBAIA, two new AIAs, KAAIA and DKBAIA, were proposed.

仿真实验结果表明KEGA实现简单，与EGA相比，其增加的计算开销可以忽略，但性能改善十分明显； 2、针对基于信息熵的免疫算法运行速度慢的缺点，提出了二种能够加快AIA运行速度的新的抗体浓度计算方法，得到两种新的免疫算法，即加速的人工免疫算法(Accelerated Artificial Immune Algorithm，AAIA)和加速的人工免疫算法-2（Accelerated Artificial Immune Algorithm-2，AAIA-2），对测试函数F15(needle in haystack：type I)、F8函数的仿真研究表明，这两种算法的运行速度都是AIA的8.5倍以上； 3、针对AIA的浓度定义存在的缺陷，提出了一种新的基于抗体间欧氏距离和适应度的新的抗体浓度定义，并依据该定义构造了一种基于欧氏距离的人工免疫算法(Euclidean Distance-based Artificial Immune Algorithm，DBAIA)。

The plastic pot had better drainage and higher ODR, so the plant grown in plastic pot had higher growth performance and root vigor than that in fabric bag grown or in field. The growth performance and nursery quality of Alstonia scholaris plants in hard pot were similar to those in soft pot.

试验结果显示：黑板树之田间苗和织布袋苗的土壤氧气扩散速偏低，以致减缓苗木的生长；而塑胶盆具有较佳的排水性和土壤氧气扩散速，因此塑胶盆苗较田间苗和织布袋苗具较佳的生长表现和根系活。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。