查询词典 performance

Trombe wall has been invited forty years ago, and lots of researchers involved in studying its diurnal thermal performance in winter. Their terminal object was to improve Trombe wall's thermal performance and popularization by meliorating its structures and materials. But there are little studies about Trombe wall's overheating in summer and overcooling in winter night. In order to popularize the application of Trombe wall, especially use it in the city residential buildings, it must solve the two "over-" problems.

其中，特朗贝式集热蓄热墙作为一种传统的被动式集热部件发展已有40几年的历史，虽然国内外学者针对其冬季白天热性能进行了深入研究，对特朗贝墙体结构形式和使用材料做了很多改良，但特朗贝墙体冬季夜间过冷和夏季白天过热的问题一直没有得到很好的解决。

And has brilliant prospect due to its simple structure, good economy and energy saving performance.Based on the full scale passive solar experimental building in DUT, in which the researcher carried experiment as the main method and the CFD simulation as the minor method, the research focuses on passive ventilation formed by the Trombe wall. This paper analyzed the indoor thermo and humidity performance of passive solar building with Trombe wall, and the different ventilation patterns in different seasons, revealing the role of passive ventilation in improving indoor environment. Also the paper researched the characteristics of passive ventilation on air flow and heat transfer mechanicsms, and put forward the best control and adjusting method. Meanwhile the paper gained an empiric formula in use of calculating the natural convection heat transfer and found the key factor of influing the indoor environment.

本研究以被动式采暖降温技术为依托，采用实验和CFD数值模拟的研究方法，重点研究了新型被动式太阳房在不同气候条件下室内热湿环境的动态变化规律，分析不同季节下被动式太阳房内不同的被动式通风模式以及不同被动式通风模式在改进室内热湿环境方面的作用：揭示了特定被动式通风流动和换热特性、控制与预测方法；得到了计算被动式通风对流换热量的经验公式以及影响室内热湿环境的关键因素；了解了含有特朗贝墙体被动式太阳房的自身优势和仍待改进的方面；在实体大被动式太阳房实验技术方面积累了一定的经验。

Classical musician people think, the performance video that watchs a Great Master is very helpful to learning performance skill, resemble viewing a staff of first-class golf hand brandish, can see the point of view of truncal, arm, the shift of musical instrument bend.

古典音乐家们认为，观看大师的演奏视频对学习演奏技巧非常有帮助，就像看一位优秀的高尔夫球手挥杆，可以看到躯干、手臂的角度，琴弓的移动。

Statistical process control method cent is statistical quality control and statistical performance monitoring two parts, what statistical quality control includes to process of single variable count is controlled and be based on statistic to return to is soft measure a technology, method of statistical performance monitoring includes advocate yuan analysis, independent the much more variable and umbriferous technology such as yuan of analysis and statistical control graph.

梗概： 回顾了统计过程控制的发展历史，介绍了统计过程控制的基本概念。将统计过程控制方法分为统计质量控制和统计性能监控两部分，统计质量控制包括单变量统计过程控制和基于统计回归的软测量技术，统计性能监控方法包括主元分析、独立元分析等多变量投影技术以及统计控制图。

Compared with the unactivated P polyelectrolyte film, the activated form P/PMMA polyelectrolyte film obtained by adopting the technology of the invention has better absorbency, room-temperature conductivity, electrochemical stability and the interface stability of electrolyte and lithium electrode; the performance of a lithium secondary battery prepared by using activated electrolyte is obviously better than the performance of the lithium secondary battery prepared by using the unactivated polyelectrolyte; the invention has simple technology, short reaction time, and convenient and easy condition for technologized production.

采用本发明技术获得的活化型P/PMMA聚合物电解质薄膜相比未活化的P聚合物电解质膜，有更好的吸液性和室温电导率，更好的电化学稳定性及电解质和锂电极的界面稳定性；用活化后的电解质制备的锂二次电池性能明显好于未活化聚合物电解质制备的锂二次电池；本发明工艺简单，反应时间短，为工艺化生产提供了简便易行的条件。

At present, the performance appraisal methods such as Management by Objective ,Full- circleappraisal and Key Process Indication have more or less unadaptability when they are applicated to appraise the knowledge-based employee's performance.

目前员工的绩效考核方法如目标管理、360度反馈评价和关键绩效指标，在运用于知识型员工的绩效考核时都存在或多或少的不适应性。

However, the servo technology which exists as a kind of software in DSP, determines the performance of the servo system. The unadvanced servo technology extremely restrains the development of high performance servo system of our country.

然而，以软形式存在于控制芯片中的伺服控制技术是决定伺服系统性能指标好坏的关键技术，它成为制约我国高性能交流伺服技术及产品发展的瓶颈。

Many new detection techniques are proposed, that include: To overcome the faults of cross-terms and short unambiguity range for the common Wigner-Ville Distribution , short-time Fourier transform and Gabor transform are applied to SAR moving target detection. To improve the detection performance of WVD in noise environment, a new technique based on the Cross-WVD is proposed. The application of fractional Fourier transform to chirp signal detection is analyzed and extended to SAR moving target detection. To eliminate the restriction of chirp-Fourier transform, a new modified definition is proposed and applied to SAR moving target detection. To detect multiple moving targets whose scattering intensities are different heavily, the CLEAN technique is combined with the above techniques and the ideal detection performance is achieved. At last, the whole dissertation is concluded.

具体的研究成果如下：针对常用的Wigner-Ville分布在多目标情况下存在交叉项，并且多普勒不模糊范围小的缺点，提出将短时Fourier变换和Gabor变换应用于SAR运动目标检测，分析了其优势所在；为进一步提高Wigner-Ville分布低信噪比条件下的信号检测能力，提出基于互Wigner-Ville分布的运动目标检测方法；分析了分数阶Fourier变换在线性调频信号检测中的应用，提出基于分数阶Fourier变换的运动目标检测算法；对离散Chirp-Fourier变换的定义进行了修正，提出修正的离散Chirp-Fourier变换，克服了限制其应用的约束条件，并用于SAR运动目标检测当中；强度相差较大的多运动目标检测历来是机载SAR技术的一个重点和难点，我们将CLEAN思想融入上述多种算法当中，良好地解决了该问题。

In this trial, they were compared that the differences of performance of AA Broilers and Beijing Fatty Chickens in unartificial environment in different growing period, studyed the effect of durative and steady high ambient temperature to the performance、meat quality and meat flavor of 56 days AA Broilers、56 days Beijing Fatty Chickens and 100 days Beijing Fatty Chickens, and talked the mechanism of the effects.

本研究在对自然环境条件下各生长阶段AA肉鸡和北京油鸡生产性能比较研究的基础上，系统研究了持续恒定高温对56日龄AA肉鸡、56日龄北京油鸡、100日龄北京油鸡生产性能、肌肉品质及风味特性的影响，并对造成这一系列影响的机理进行了初步探讨。

The results showed that the performance of unchoked ducted rocket is superior to that of choked one. When the gas generator is loaded with high burning-rate exponent fuel-rich propellant, the performance of unchoked ducted rocket is almost the same as that of the ducted rocket working under fixed mass ratio of fuel to air.

研究结果表明：非壅塞固体火箭冲压发动机的性能显著优于燃气流量不可调的壅塞式固体火箭冲压发动机；当贫氧推进剂具有高的燃速压强指数时，非壅塞固体火箭冲压发动机的性能接近燃气流量完全调节、以等空燃比工作的冲压发动机性能。

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。