Description: 一个用于java web页面开发的开源包，轻松的讲页面制作和业务逻辑分开-One for the java web page to develop open-source package, easy to talk about the page to separate the production and business logic Platform: |
Size: 529408 |
Author:对符合 |
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Description: 众所周知的structs框架，如果不是只限于应用，想多了解一下其底层原来，源码值得研究-Structs the framework of well-known, if not limited to applications, like to know more about what their underlying original, source code is worth studying Platform: |
Size: 22688768 |
Author:thomas |
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Description: 用来处理物理模型数据的工具软件，主要处理流速流向，表层测流的流场处理。-Physical model data to deal with software tools, which mainly deals with the flow velocity, surface measurement of the flow field-flow processing. Platform: |
Size: 137216 |
Author:高峰 |
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Description: This thesis aimed to eliminate tracking
error of traveling a circular profile on the CNC machine tools. Friction is one of the
most significant source of nonlinear disturbance for the motion control which caused
by the relative motion of different contact surface at the low velocity. The nonlinear
component of friction such as static friction (stiction) and the Coulomb friction should
be overcome so that the tracking error will be eliminated. When the X-Y tables are
tracking a circular profile, quadrant glitches appear at ninety degrees intervals, i.e. the
motion of one axis has a zero velocity crossing and reverses direction.-This thesis is aimed to eliminate tracking
error of traveling a circular profile on the CNC machine tools. Friction is one of the
most significant source of nonlinear disturbance for the motion control which caused
by the relative motion of different contact surface at the low velocity. The nonlinear
component of friction such as static friction (stiction) and the Coulomb friction should
be overcome so that the tracking error will be eliminated. When the X-Y tables are
tracking a circular profile, quadrant glitches appear at ninety degrees intervals, i.e. the
motion of one axis has a zero velocity crossing and reverses direction. Platform: |
Size: 685056 |
Author:tatos |
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Description: 研究半监督学习的模糊核聚类方法用于变速箱早期故障诊断的方法。故障特征不明显、样本差异小是机械故障早期检测的
难点， 基于半监督学习的核聚类方法利用少量已知模式的样本， 结合大量未知模式的样本进行半监督学习， 得到较好的识别效果。-In this paper, motion control method of semi-closed CNC method is presented for gear-box fault early detection. The difficulty
machine tools is introduced. First, regard backlash compensation in mechanical fault early detection is to detect the weakly fault
pitch error compensation and the ideal speed from interpolation information immerged in noises. The semi-supervised kernel
calculating as the velocity feed-forward. Platform: |
Size: 729088 |
Author: |
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Description: 水声通信面临的最困难的问题是多途干扰,其中自多途引起接收信号的幅度衰落,互多途引起接收信号的码间干扰,再加上海洋环境的高噪声背景、低的载波频率、极为有限的带宽以及传输条件的时间—空间—频率变化特性,使得通信过程十分困难。此外，水声通信试验的成本高，难度大，也为水声通信研究带来挑战。
本软件对水声信道的仿真研究很有帮助，可以产生声线图，冲激响应，声速图等仿真文件，结合Matlab画图工具绘制图像，对水声信道的模拟仿真很有帮助。-The most difficult problem faced by underwater acoustic communication is multi-path interference, which since multipath fading caused by the magnitude of the received signal, and mutual inter-symbol interference caused by multipath signal reception, plus the marine environment of high background noise, low carrier frequency , very limited bandwidth and transmission conditions of time- space- frequency characteristic such that the communication process is very difficult. In addition, the high cost of underwater acoustic communication experiment, difficult, and challenges for the study of underwater acoustic communication. This software is useful for simulation study of underwater acoustic channel can produce sound chart, impulse response, sound velocity diagrams simulation files, combined with Matlab drawing tools to draw the image of underwater acoustic channel simulation helpful. Platform: |
Size: 415744 |
Author:苏羽 |
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Description: MATLAB toolbox, 用于简单的流体动力学和热传导模拟仿真(FEATool 1.9 features two new pre-defined physics modes for flow simulations. The new compressible Euler equations physics mode allows for modeling of inviscid and supersonic fluid flows with shock-waves. In addition, the built-in CAD tools now also feature built-in and pre-defined wing shapes for NACA 4-series wing profiles. Moreover, a dedicated axisymmetric physics mode for flows with swirl effects is now also available (modeling axisymmetric flows with non-zero azimuthal velocity).) Platform: |
Size: 2995200 |
Author:catsota |
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