performance n. 1.执行,实行,履行;完成;实现;偿还。 2.行为,动作,行动;工作。 3.性能;特性。 4.功绩;成绩。 5.演奏;弹奏;演出;(驯兽等的)表演;把戏。 6.【物理学】演绩。 a performance test 【机械工程】性能试验。 high performance 高度准确,性能优良。 an afternoon performance 午后的演出,日戏。 two performances a day 一天演两场。 a fine [wretched] performance 成绩好[坏]。 put a monkey through its performances 使猴子玩种种把戏。 performance in [of] horse-manship 马戏;马术表演。
The leo satellite constellation network system structure based on the mobile network technology was proposed, the novel network strategy of satellite constellation network and the handoff model between satellite and ground were proposed, and the network performance simulation result based on the ns2 was submited 提出了基于移动式网络技术的leo卫星星座网络体系结构,引入了新的网络组件,提出了新的卫星星座网络组网策略,讨论了星地间的切换模型,并提交了基于ns2的网络性能仿真结果。
The dimensional optimization and synthesis of rhombic driving se, its performance simulation and modeling by virtual prototype were studied in this paper . in order to prove the rationality of the design parameters for the driving mechanism, the kinematical and dynamical simulation of the mechanism was carried out 本文研究了菱形传动热气机的传动机构尺度优化综合、性能模拟以及利用虚拟样机技术对热气机进行建模,进而对其传动机构进行运动及动力模拟仿真,以检验各个参数的合理性。
(3 ) the basic theories and techniques on distributed radar cfar detection are reviewed . in particular, using the numerical performance simulation results, the performance of distributed cfar detect system under nonhomogeneous backgrounds and simple detect conditions are analyzed in some details . we have summarized the performance characteristics of distributed cfar detect systems against interference and edge clutter when different fusion rule is used 西北工业大学博士学位论文(3)对分布式cfar检测技术的相关理论、方法进行简要总结与分析,特别是利用数值分析与性能仿真方法,对非均匀环境下简单条件检测系统的性能进行了较为深入和系统的研究,总结了不同融合方式时分布式cfar检测在抗干扰与杂波方面的性能特点。
After the implementation of the powertrain configuration, the mathematical models of main powertrain components are constructed by applying software advisor and the simulation results of each component are given according to the vehicle performance simulation results by using software advisor 在布置方案确定后,通过advisor软件对燃料电池电动车的动力传输系统进行了建模与仿真。本文详细介绍了动力传输系统中,燃料电池,蓄电池,电机和控制器系统数学模型的工作原理和建立过程。
(2 ) a new method of parameter setting for excitation systems is proposed . firstly, the large signal performance simulation test of the excitation system is conducted and the objective response of the excitation system is described with its large signal performance indexes, and then the parameters of the excitation system are identified . secondly, the small signal performance simulation test of the excitation system is done a nd the parameters of the excitation system are optimized by the 1tae rule in order to enhance the small signal regulation performance 提出了一种励磁系统参数整定方法:首先以大信号特性技术指标为目标,用gause-newton法对励磁系统参数进行辨识,确定符合标准的励磁系统参数;接着按照时间乘绝对误差的积分(itae)准则,用gause-newton法对励磁系统参数进行优化,以提高励磁系统的小信号调节性能。
(2 ) a new method of parameter setting for excitation systems is proposed . firstly, the large signal performance simulation test of the excitation system is conducted and the objective response of the excitation system is described with its large signal performance indexes, and then the parameters of the excitation system are identified . secondly, the small signal performance simulation test of the excitation system is done a nd the parameters of the excitation system are optimized by the 1tae rule in order to enhance the small signal regulation performance 提出了一种励磁系统参数整定方法:首先以大信号特性技术指标为目标,用gause-newton法对励磁系统参数进行辨识,确定符合标准的励磁系统参数;接着按照时间乘绝对误差的积分(itae)准则,用gause-newton法对励磁系统参数进行优化,以提高励磁系统的小信号调节性能。
With the development of morden aero-propulsion system, the simulation technology has became one of the most important means in aeroengine design . aeroengine nonlinear mathematical models, as the basis of engine performance simulation, are not convergence favorably in entire flight scope, because of the solution limitations of nonlinear equation and the engine balance equations 作为数值仿真的基础与核心,目前广泛应用的发动机非线性数学模型,由于平衡方程各种迭代解法与模型中非线性方程解法的不足,因而从根本上没有解决模型在整个包线范围内的收敛问题,极大地制约了发动机数值仿真技术的发展。
3 . developed simply and practical fluid network algorithm for large-scale of pipe networks, such as air-gas system and powder manufacture system . iterative computation used in this algorithm is not only astringing quickly and numerical calculating steadily but also cater the required ratio of precision and guarantee the real-time and any performance simulation of fluid network 3、本文对风烟系统和制粉系统等大型管网,建立了简单实用的流体网络模型算法,此法在迭代计算中,不仅可以快速收敛和数值计算稳定,而且满足一定的仿真精度,较好的保证了流体网络的全工况实时仿真。
To prove the feasibility of smpdca, this paper design three architecture for a chip which area is about 300 mm2 . we got performance simulation results using rsim . the results of simulation show that it is really feasible to integrate many simple microprocessors on one chip 针对smpdca结构所存在的硬件实现代价的问题,为了证明其可行性,本文以一个面积为300mm~2左右的芯片的设计为目标,通过性能模拟比较,我们得出结论:在一块芯片上集成多个相对简单的微处理器是完全可行的,在硬件实现代价相近的情况下,smpdca结构可以获得比superscalar结构更优的性能。
The software has six modules : thermo physical property of working medium, design of heat pipe lithium bromide-water generator driven by waste heat, system design of single or double lithium bromide-water refrigerators with heat pipe, performance simulation of single or double lithium bromide-water refrigerator with heat pipe in varying duty, thermodynamic parameters of each state, thermodynamics analyses . the software makes the design more convenient and correct . it can be used to compare the design of multiparameter and select deferent design methods according to different needs 考虑到这种情况,本文在查阅相关文献的基础上,开发了烟气驱动的热管废热溴化锂制冷机的系统设计和变工况性能模拟软件,该软件分为6大模块:工质热物性模块、热管溴化锂废热发生器设计模块、单/双效热管废热溴化锂制冷机系统设计模块、单/双效热管废热溴化锂制冷机变工况性能模拟模块、各状态点热力参数模块和热力学分析模块。