Lactic acid the most widely occurring hydroxy-carboxylic acid has traditionally been used as food preservative and acidulent. So long, it has been produced through either chemical synthesis route or fermentation route the latter being the do...

Abstract Mediterranean countries show two specific features regarding air-conditioning of buildings: a highand growingcooling load and high relative humidity, at least in coastal zones. In this contribution we report on the development of a...

In this paper, we present a phenomenological model that predicts the size distribution of the product issued from impact crushing in function of the rotor strike radius and velocity, the material properties and size distribution of the feed...

关键词: 经济优化 试探法 预应力混凝土结构结构设计 预制梁模拟退火法摘要这篇论文讨论的是关于预制预应力混凝土人行桥用于公共工程建设的经济优化问题。这些桥梁是由预制混凝土...

摘要本文介绍了成功的几种排气通风系统的设计以及实现涂料的制造工厂。通风系统的设计是基于美国政府工业卫生会议的建议。管道工程、球迷以及其他部分以及安装由当地制造商完...

The authors have provided an important addition to the current knowledge of the problems of high torques in steel mills.Their crucial contributions are twofold. Firstly,they have demonstrated, in Fig. 8, that backlash in a mill can have a se...

Abstract Positioning systems for machine tools are generally driven by ball screws due to their high stiffness and low sensitivity to external perturbations. However, as modern machine tools increase their velocity and acceleration of positi...

AbstractWith the increasing miniaturization of robotic devices, some actuators are not provided with absolute position sensing, thus making the state of the system unknown at startup. In this paper we present a vision based method for the au...

摘要：在热塑性注塑模设计中，配件的质量和生产周期很大程度上取决于冷却阶段。已经进行了大量的研究，目的是确定能减少像翘曲变形和不均匀性收缩等的不必要影响的冷却条件。...

Abstract This paper presents the development of an Intelligent Cavity Layout Design System (ICLDS) for multiple cavityin jection moulds. The system is intended to assist mould designers in cavity layout design at concept design stage....