Antibacterial Characteristics of ZnO-CeO2 Nano-Powder Prepared by Laser Vapor Condensation

Microbialpollutionandcontaminationbymicroor ganismshaveproducedvarioustroublesinindustryandothervitalfields ,suchasdegradationandinfec tion .Thenewpasteurizationandantibacterialtech niqueshavebeendemandedandstudied[1] .Inrecentyears ,therareearthmetaloxid…     

浅淡高校校办产业的现状与发展

我国高校校办产业发展到今天,已有十几年的历史了,在这十几年里,高校产业利用自身的人才、技术、信息等优势,形成了科技成果转让的良性循环,它为学校的发展起到了相当重要的作用.特别是科技产业,以高新技术为依托,以市场为导向,实现教学、科研、生产相结合的模式,具有较强的竞争发展能力.有的企业已形成了一定规模,所生产的高科技产品在市场上具有一定的竞争能力.从目前看,高校科技产业在我国知识经济发展中,已经开始占据着越来越重要的地位.从学校的建设上看,科技产业是教育改革的产物,它的产生不仅给学校带来了直接的经济效益,更重要的是增强了学校的实力,加速了学科建设,提高了高校的学术科研水平,应该说,学校科技产业的发展对整个教育的发展起着不可忽视的作用.但在发展的同时,也相继出现了一些需要解决的问题,只有正确解决这些问题,高校企业才能健康有序的发展,才能创造出更大的社会效益和经济效益.     

工程图学课程的教学改革

工程图学是高职院校普遍开设的一门重要的技术基础课,目前工程实际中手工绘图耗时长,效率低、劳动强度大,绘图精度不容易保证,而计算机绘图则速度快、效率高、准确性好.因此已得到了普遍的运用,正因如此,在工程图学教学中"甩图板"的呼声此起彼伏.如何在教学中摆正二者的关系,已成为各个院校急待解决的问题.     

安钢高线品种开发的优势与实践

介绍了安钢高线的技术装备、工艺转化及创新，以及自投产以来的产品结构调整和重点产品的开发情况。     

压力AGC系统与其它厚控系统共用的相关性分析

分析证明了动态设定型厚度控制系统与监控、前馈厚度控制系统是相容的,而且保持各自的独立性,无相互影响。BISRA变刚度厚度控制系统和测厚计型厚控系统与监控、前馈厚度控制系统也是相容的,但它们之间有相互影响。BISRA恒压力厚度控制系统与监控、前馈厚度控制系统是不相容的,而动态设定型的恒压力方案是相容的。     

IAEA推荐的操作干预水平OIL1和OIL2缺省值的导出及其适宜性的初步研究

本文简要介绍了操作干预水平(OIL)的概念、应用和IAEA建议的缺省值及其导出方法，运用有代表性的美国《反应堆安全研究》的事故源项和法国严重事故源项(S1，S2，S3)，着重研究了压水堆事故下OIL缺省值导出假定的两个参数R1(总有效剂量率和烟羽外照射剂量率的比值)、R2(甲状腺剂量率和烟羽外照射剂量率的比值)数值的合理性。初步研究表明，对所研究的事故类型，平均来说，R1、R2参数取值和相应的OIL1、OIL2缺省值是适宜的；但对不同事故类型计算得出的OIL与其缺省值存在一定的偏差。相对事故源项来说，事故天气条件以及距离对R1、R2的影响较小(PWR1-PWR7中R1、E2的数值随距离变化的最大值约为最小值的2倍；而在大气稳定度类别为A、D和F这三类气象条件下，PWR1-PWR6平均的R1、R2数值与缺省值假定计算条件设定值的最大偏差大约为50％)。因此，在实际应急响应中运用OIL缺省值时，需要进行修正或重新计算。     

本底个值质控图对甲功仪长期稳定性监控的意义

从甲功仪获得131I摄取率的准确性角度探讨甲功仪的短期、长期稳定性。通过建立本底个值质控图对甲功仪进行质量监控。提出了影响甲功仪稳定性的因素及处理办法，目前对甲功仪质控无统一标准，此监控结果较准确、方法简单易行。     

Mothers' Affect in the Homework Context: The Importance of Staying Positive.

This research investigated mothers' affect in the context of children's homework. Mothers (N=109) of children 8 to 12 years old were interviewed daily about their affect while interacting with children, their assistance with children's homework, and children's behavior while completing homework. At this time and 6 months later, children's motivational and emotional functioning was assessed. Although mothers' negative affect was lower than their positive affect, it was elevated on days their assistance with homework was high. This was accounted for by mothers' perceptions of children as helpless on days they provided heightened assistance. Mothers' positive affect in the homework context buffered children's motivational and emotional functioning against mothers' negative affect as well as children's helplessness. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Control System of Neutral Beam Injection on HT-7

Neutral Beam Injection control system (NBICS) is constructed to measure the plasma current, Magnet current, vacuum pressure, cryopump temperature, control water cooling, filament voltage, and power supply， etc. The NBICS, consisting mainly of a Programmable Logic Controller (PLC) subsystem, data acquisition and processing subsystem and cryopump and vacuum pressure monitoring subsystem, has successfully been used on a NBI device. In this article, the design of NBICS on HT-7 is discussed and each subsystem is described in particular.In addition, some experimental results are reported which are very important data for further research related to the HT-7 tokamak.