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Two reformative operations are introduced, including the parent population involving selection and optimal individual maintaining. The design of fitness function and the scheme of encoding and decoding of GA are discussed significantly.

最后,针对系统测试存在大量测试数据难以获取,系统长期连续运行性能难以评价的困难,提出了一个基于仿真的信息系统性能测试框架,利用该框架对集装箱堆场大门作业计划系统进行性能测试。

In the natural and drying conditions were right pellet of the physical properties and chemical properties and metallurgical properties for testing.

在自然和烘干的条件下分别对球团的物理性能、化学性能和冶金性能进行测试。

The mapping between performance knowledge unit and mechatronical product structural is set up.According to the perfect mapping relationship,superfluous mapping relationship and coupling mapping relationship,the solution of mechatronical product design problem is proposed.

在机电产品性能知识语义描述的基础上,扩展出机电产品性能需求集的语义描述方法,建立结构性能知识单元与机电产品实例结构的映射关系,分别根据理想、冗余和耦合映射关系,提出机电产品结构设计的求解方法。

Simulation results show that the servo system with the designed controllers provides a good performance. At the same time, it reduces the sensitivity of the system performance to the controller parameter perturbation. Then, the robustness of the system are improved.

仿真实验结果表明,采用本文方法设计的鲁棒二自由度控制器性能很好,不但保证了伺服系统的动静态性能,而且降低了系统对控制器参数摄动的灵敏度,提高了系统的整体鲁棒性能

The mechanical properties,micromorpholgy microstructure of grain boundary and phase composition of Al_2O_3 composite ceramics were systematically studied ,the effect of additives,the relationship between microstructure and mechanical strength,the sintering mechanism of the material and influence factors of the structure and properties of Al_2O_3 composite ceramics were discussed respectively.

系统研究了氧化铝陶瓷的力学性能、微观形貌、晶界显微结构,并讨论了各添加组分的作用、材料显微结构与力学性能的关系以及材料的烧结机理和影响材料结构与性能的影响因素。

The invention discloses a passive optical network signal monitoring method comprising the following steps: obtaining a PON signal from one side of an optical line terminal and an optical network unit, detecting the photoelectric property parameter of the obtained PON signal and judging whether the detected photoelectric property parameter lower than a predeterminate photoelectric property parameter threshold or not, if it is, a corresponding alarming signal is transmitted to the OLT.

本发明公开了一种无源光网络信号监控方法,包括以下步骤:获取来自光线路终端和光网络单元中一侧的PON信号,检测所获取的PON信号的光电性能参数;和判断所检测出的光电性能参数是否低于预设的光电性能参数阈值,如果是,则发送对应设置的告警信号给所述OLT。

This article introduces the photometry in ECE regulation s and USA standards,and analyzes the demands of lamp application in detail.

灯具配光性能是关系车辆行车安全的重要性能指标,本文对依据欧洲法规及美国标准进行配光性能测试的方法进行简要比较说明,并详细分析测试中光源的使用要求。

Based on the low cyclic loading experiments on one brick masonry wall with ordinary pilaster and eight specimens of masonry walls with pilaster strengthened by GFRP, the failure characteristics of the walls are explained; seismic performance characteristics, such as resilience, rigidity and its degeneration, deformation, and energy dissipation are studied; and influence of the measures including strengthening means, reinforcement area proportion between GFRP and wall surface,"through-wall" anchorage reinforcement effects are studied.

通过1片未加固带壁柱砖墙和8片GFRP加固带壁柱砖墙在低周往复荷载作用下的抗震性能试验,阐述了各试件的破坏特征;研究CFRP加固前后墙体的滞回特性、刚度及退化特性、变形性能、耗能性能等变化规律,以及加固方式、加固量和"对拉"锚固措施对加固效果的影响。

Aiming at the key issue of PVA fiber industry, this paper focuses on the realization of PVA melt spinning through intermolecular complexation and plasticization, and studies its mechanism. According to the supermolecular

研究了改性体系的氢键复合结构,改性体系中水的蒸发行为,改性剂对PVA热性能、结晶结构及非等温结晶性能的影响,PVA熔纺初生纤维的结构与性能及纤维拉伸过程中的结构形成,为在加工过程中控

With a suitable performance function and an initial control that made the closed system bounded, a serial of controls that made the performances better could be obtained by policy iteration, and ergodic Markov chains were constructed by the state serial with the corresponding feedback control.

在合适的性能指标并能找到一个使系统性能有界的控制的前提下,通过策略迭代可以求出逐步改善系统性能的控制序列,同时得到状态序列在相应反馈控制作用下构成遍历的马尔可夫链。

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推荐网络例句

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气,收缩臀部肌肉;拱起身体,尽量抬起头来,右腿伸直朝向天花板(膝微屈,以避免肌肉紧张)。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化,但却比去年同期高8%。

However, to get a true quote, you will need to provide detailed personal and financial information.

然而,要让一个真正的引用,你需要提供详细的个人和财务信息。