工程化学

Directed at improving the efficiency of treating waste water in Biological Aerated Filter, the paper introduces the study of the effect of air flow rate, Hydration Retention Time, and organic loading of input water on the removal rate of Chemical Oxygen Demand and NH3-N using activated carbon, zeolite, architecture keramics and engineering keramics as stuffings.

为提高曝气生物滤池处理废水的效率，以沸石、活性炭、建筑陶粒、工程陶粒作为填料测试气体流速、水力停留时间、进水有机负荷对生物滤池的化学需氧量、NH3—N的去除效果及出水浊度的影响。

In this paper, the studied results showed that the key of plate wastewater treatment by chemical method was proper value of pH, and the electrolysis method was applied to treat mixed wastewater of chromium and other heavy metals.

通过研究得出，利用化学方法处理电镀废水的关键是控制好pH值；另一点是采用微电解方法处理含铬和其它重金属混合废水，在实际工程运作中有良好的效果。

Reimer, L.,"Scanning Electron Microscopy, Physics of Image Formation and Microanalysis", P. 8 (1998), Springer, Publicated in Berlin, 2nd edition

林信贤，&聚甲基丙烯酸甲酯与蒙脱土奈米复合材料制备及物性分析&，中兴大学化学工程研究所硕士论文 2001

Syngas can be converted to hydrocarbon products via F-T synthesis, and this provides a new way to make use of carbon sources.

合成气经过F-T反应转化为烃类产品长期以来一直是催化和化学工程领域研究的一个重要课题。此过程的核心是催化剂和工业反应器技术的研究与开发。

Syngas can be converted to hydrocarbon products via F-T synthesis, and this provides a new way to make use of carbon sources.

合成气经过F-T反应转化为烃类产品长期以来一直是催化和化学工程领域研究的一个重要课题。

Selenium; Se Grignard Reagent; Organic selenides; symmetry selenides; unsymmetry selenides; synthesis

工程科技I，化学，有机化学硒；硒格氏试剂；有机硒化合物；对称硒醚；不对称硒醚；合成

Keywords heavy metal ion wastewater,phosphorus wastewater,iron oxide coated sand,adsorption,magnetic seed flocculation-high gradient magnetic separation,solution chemistry

Article From 中南大学；矿物加工工程博士论文 2004年度重金属离子废水；含磷废水；涂铁石英砂；吸附；磁种絮凝-高梯度磁分离；溶液化学

In this paper, different methods of preparation about magnetorheological fluids are introduced, including mechanical crushing, wet chemical depositing, anion exchange, pyrolyzing; some main applications of magnet...

介绍了制备磁性流体的几种不同的方法：机械粉碎法、湿式化学共沉法、阴离子交换树脂法和热分解法；介绍了磁流变技术在密封、阻尼器、抛光装置等工程上的一些主要应用，并展望了磁流变技术在建筑、航天等领域的应用前景。

More recently, IMF has broadened its interests to cover all aspects of materials surface engineering including plating, PVD coating, chemical etching, paint and powder coating, pre-treatment and post treatment processes.

近年来，金属精饰研究所主要发展表面工程材料，如：电镀、真空涂层、化学蚀刻、油漆及粉末涂料、预处理和后处理工艺。

The study objects of this text are highway and railway tunnel. This text analyze form and mechanism of cause of the tunnel"s disease through knowledge theory such as :rock mechanics, soil mechanics, hydraulics, hydrodynamics, chemistry ,and so on. And combine last criterion, rule and engineering practice, provide the tunnel disease"s the design of prevention and cure, method of construction, new technique, new material, new craftwork. This text provide some advantageous consult values for tunnel prevention and cure.

本文以公路及铁路隧道为研究对象，运用岩体力学、土力学、水力学、流体力学、化学等学科理论，以宏、微观相结合的方法分析了渗漏水、冻害、衬砌裂损及衬砌腐蚀4种常见隧道病害的表现形式、成因机理，结合最新的规范、规则和工程实际给出了隧道病害的防治设计、施工方法以及新技术、新材料和新工艺，为隧道防治提供了有利的参考价值。

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％。