iStructE　Passpaper

双击setup.exe安装，提示要序列号后把license.txt文件中的号码复制到框中，OK！ 简单使用方法：先在MAX中画一条封闭的曲线，点击Forest Pro后选择曲线就能在曲线内生成树木片，再进修改面版编辑！ by-bwy520-QQ:4435412 欢迎交流方案图和资料

　Illustrator是大名鼎鼎的ADOBE公司推出的专业绘图工具。这款CS版在原来的基础上又增加了很多新的东西。如功能面板的数量，设计的人性化等，但操作反而更加灵活简单，实是绘图人员的首选，再与ADOBE的另一软件photoshop配合使用，可以让您创造出让人叹为观止的图像效果。今天我们隆重推出这款全新的Illustrator CS 版教程，希望可以对大家的绘图工作有很大的帮助！

Illustrator是大名鼎鼎的ADOBE公司推出的专业绘图工具。这款CS版在原来的基础上又增加了很多新的东西。如功能面板的数量，设计的人性化等，但操作反而更加灵活简单，实是绘图人员的首选，再与ADOBE的另一软件photoshop配合使用，可以让您创造出让人叹为观止的图像效果。今天我们隆重推出这款全新的Illustrator CS 版教程，希望可以对大家的绘图工作有很大的帮助！

　Illustrator是大名鼎鼎的ADOBE公司推出的专业绘图工具。这款CS版在原来的基础上又增加了很多新的东西。如功能面板的数量，设计的人性化等，但操作反而更加灵活简单，实是绘图人员的首选，再与ADOBE的另一软件photoshop配合使用，可以让您创造出让人叹为观止的图像效果。今天我们隆重推出这款全新的Illustrator CS 版教程，希望可以对大家的绘图工作有很大的帮助！

This study presents a nonlinear optimization technique (NOT) for conducting the back analyses of geotechnical engineering problems based on the field observations. Additional auxiliary techniques are incorporated to enhance the convergence and stability of the NOT. The developed NOT and additional auxiliary techniques are incorporated into a finite element code and then applied to the back analysis of excavation-induced wall deflection. A number of hypothetical excavation cases with various scenarios of stratigraphy and two quality excavation case histories are used to validate the developed NOT, in which the dominant soil parameters are treated as target parameters. Results show that the wall deflections of all hypothetical and actual excavation cases at each stage can be accurately and efficiently backfigured.

Google SketchUp Pro 8.0 FluidRaySketchUp_demo_1_1_0

本资料为：从零开始Revit Architeture，内容详细具体，可供参考。

一个简单的小工具，用来计算水利摩擦系数 lamda 。

批量打印程序，免注册！

可以画园林手绘的哦，很不错的哦。

空气线图工具，国外软件，相比一些同类工具来说功能更加强大，体积稍微大了些。

这是一个基于Windows 环境的CAD软件，用于绘制电气和电子类原理图和安装布置图。

Abstract--COD and nitrogen balances were performed on four different types of laboratory-scale activated sludge system: aerobic, anoxic, anoxic-aerobic and anaerobic-anoxic-aerobic (biological excess phosphorus removal systems). The systems included a variety of configurations, with differing wastewater characteristics and operating parameters. The results suggest that good COD balances are to be expected in aerobic and anoxic-aerobic systems. Systems incorporating anaerobic zones exhibit low COD balances (less than 80%). Fermentation in the anaerobic zone apparently is implicated in this "loss" of COD. The consequences of the COD "loss" include both a significant decrease in oxygen requirements and in sludge production compared to aerobic or anoxic-aerobic systems. Possible mechanisms for the loss of COD and areas which require further study are discussed.

modbus仿真软件，可模拟modbus从站

三维模型设计新思维AnyCAD Component Designer 是一款采用脚本编程的参数化三维建模软件，可应用与建筑、机械、教育、电力、仿真等多个行业。