SIMPLE METHOD OF PUNCHING AND RE-LOCATING TISSUES FOR MANUAL CONSTRUCTION OF TISSUE MICROARRAY

A series of human tissue samples and cultured cell lines were formalin-fixed and paraffin-embedded. Specimen cylinder ( 1.2 - 1.8mm) were punched by a modified bone marrow biopsy needle and arrayed on a recipient paraffin block. Microscopic analysis on the sections from this tissue microarray (TMA) block demonstrated that the spots of tissues and cells were well preserved, and the cultured cell samples were successfully embedded from 5 × 104 to 2 × 105 in number. These TMA sections were also suitable for immunohistochemistry and RNA in situ hybridization.     

Wind Generator Stabilization with Doubly-Fed Asynchronous Machine

This paper investigates the function of doubly-fed asynchronous machine(DASM)with emphasis placed on its ability to the stabilization of the power system including wind generators.P(active power)and Q(reactive power)compensation from DASM can be regulated independently through secondary-excitation controlling.Simulation results by power system computer aided design(PSCAD)show that DASM can restore the wind-generator system to a normal operating condition rapidly even following severe transmission-line failures.Comparison studies have also been performed between wind turbine pitch control and proposed method.     

基于超融合基础架构的铁路云数据中心建设方案

在充分研究铁路信息化发展现状、演进困境以及云计算平台技术的基础上,结合中国国家铁路集团有限公司对于信息化的总体规划,提出铁路云数据中心的总体技术架构,详细阐述基于云计算技术的铁路数据中心平台优势.对涉及到的关键技术:超融合技术和网络拓扑技术展开说明.立足铁路云数据中心规划建设角度,重点从IaaS层资源规划、云管平台建设...     

门座式起重机转车液压制动器电气化改造的一点尝试

针对安全隐患,提出对转车液压制动器进行电气化改造。介绍了液压制动器改造的几点做法以及改造后的几个功能,改造后试用效果,安全性能上优于原有系统。     

谈电气线路故障的产生、检测和检修

分析了电气线路的主要故障,将电气线路故障分为短路、断路、接地三种情况,分别介绍了引起故障的原因,检测及维修方法。为电气人员提供一种解决实际问题的思路。     

基于马尔可夫链的港口民营化过程模拟及预测

介绍了目前港口民营化概况,阐述了港口要素构成及特征与民营化目标模式,着重介绍了马尔可夫链的基本原理及其方法与港口民营化微观过程模拟,如何用马尔可夫链进行进口模式演进趋势预测等。     

现代港口物流发展的投入产出评价体系

分析了我国港口发展的现状,介绍了港口物流投放产出模型的编制方法和相关表格,阐述了港口物流投入产出模型的应用分析。以避免对港口过度投入和重复建设所带来的产出效益降低,提出以投入产出模型为基础,对我国港口物流发展的投入产出规划提供理论指导。     

东南亚港口发展动态及主要港口价位比较

简要介绍东南亚港口的发展动态,并对几个主要港口的价位进行比较。     

舱内作业机械加油车的研制和应用

内燃装卸机械常在大型船舶舱内进行散货喂料、清舱以及件杂货搬移等作业。这些内燃装卸机械在船舱内作业的时间往往会长达十几至几十小时。这期间,需要给这些舱内作业的机械补充燃油。通常的做法是,岸边机械暂时停止作业,必要时拆下抓斗等属具,将舱内作业机械吊出船舱进行加油,     

橡胶沥青SAMI应力吸收层施工技术

橡胶沥青SAMI应力吸收层是由橡胶沥青胶结料和单粒径集料组成的应力吸收薄膜。根据橡胶沥青SAMI应力吸收层材料要求,研究橡胶沥青SAMI应力吸收层的施工技术。