rwdfox

Sams (June 9, 2003)
PDF | 1662 pages | 6mb(rar)

J2EE Developer's Handbook/by Paul J. Perrone (Author), Venkata S.R. "Krishna" R. Chaganti (Author), Tom Schwenk (Author)
Description
Java 2 Enterprise Edition (J2EE) is an application development platform for building robust enterprise systems. J2EE includes numerous Java APIs and tools including Enterprise JavaBeans, JavaServer Pages, and Servlets. Developers looking to leverage this complex platform need guidance not only on the features of each tool, but on using them together to create real-world systems.
J2EE Developer's Handbook provides both -- discussing the tools in the context of practical J2EE applications which demonstrate every aspect of J2EE development. In the Spring of 2003, Sun will relase J2EE 1.4 which includes numerous updates and new features such as JSP 2.0, EJB 2.1, and new APIs for creating J2EE Web Services and using the J2EE Connector Architecture.

download link:

ghij550

反应釜　　反应釜 广泛应用于石油、化工、橡胶、农药、染料、医药、食品，用来完成硫化、硝化、氢化、烃化、聚合、缩合等工艺 过程的压力容器，例如反应器、反应釜、分解锅、聚合釜等；材质一般有碳锰钢、不锈钢、锆、镍基（哈氏、蒙乃 尔、因康镍）合金及其它复合材料；　　根据反应釜的制造结构可分为开式平盖式反应釜、开式对焊法兰式反应釜 和闭式反应釜 三大类，每一种结构都有他的适用范围和优缺点。 　　根据反应釜的密封型式不同可分为：填料密封，机械密封和磁力密封。　　 反应釜 由釜体、釜盖、夹套、搅拌器、传动装置、轴封装置、支承等组成。搅拌形式一般有锚式、桨式、涡轮式、推进式 或框式等，搅拌装置在高径比较大时，可用多层搅拌桨叶，也可根据用户的要求任意选配。并在釜壁外设置夹套， 或在器内设置换热面，也可通过外循环进行换热。加热方式有电加热、热水加热、导热油循环加热、远红外加热、 外(内)盘管加热等，冷却方式为夹套冷却和釜内盘管冷却，搅拌桨叶的形式等。支承座有支承式或耳式支座等。 转速超过160转以上宜使用齿轮减速机.开孔数量、规格或其它要求可根据用户要求设计、制作。