GC／MS／CPU联用技术在海军军事医学中的应用

The article mainly introduced the application of GC/MS/CPU technique in navy military medicine. Firstly, qualitative study of components existing in the air of navy special environment and qualitative analysis of hazardous substances produced in special circumstance and on special conditions; Due to the study, the number and classification of the components in the air could be made clear, the source of air pollution and pathway could be found, varying rule of concentration could be made obvious, and the aim of overall assessment and control of the air quality could be realized. Secondly, analytical study of released substances from nonmetallic material used by ships; the study was fundamental work for assessment of ship-used material toxicity of ship-used materials and presented data for modeling, screening and first choice of the material. Thirdly, qualitative analysis of some special substances from crew's metabolic products; the study was the key to studying effects of hazardous materials on crew's body. Pathway of the materials entering the body, mechanism and metabolic process might be made clear by the study, which could presented bases for prevention and treatment of crew's special disease. Fourthly, analysis of ingredients and structure of drugs and health-care food; the study was to present necessary technique consults for research, development and production of new products.     

麦当劳汉堡大学 让员工与企业共同成长

作为世界第一的餐厅品牌和世界零售食品服务业领先者,麦当劳的成功一直在被模仿、被跟随,唯一不可复制的便是麦当劳的人员。麦当劳品牌创始人RayKroc说:"我们不只是一家卖汉堡的公司,更是一家以人为本的公司。"人才是麦当劳最珍贵的财富,麦当劳珍视每一位人员及其发展。     

三峡库区典型支流沉积物重金属污染特征及评价分析

大型水利工程对生态环境具有直接的影响,也是近年来国内外关注的焦点,由于我国三峡库区水环境中的重金属所具备的化学特性较为繁杂,直接关系到生态效应。目前,这也是水利、环境与生态领域着重研究的课题。由于金属主要是通过沉淀或者共沉淀的形式向底质进行迁移,导致大部分金属都会集中在底质的沉积物中。文章结合现阶段三峡库区典型支流沉积物重金属污染的实际情况,依据其污染特征,展开详细评价分析。     

贴衬织物对色牢度检测结果的影响分析

本文采用多纤维贴衬和单纤维贴衬进行耐洗色牢度试验,比较了这两种贴衬试验的测试结果及合格率的高低,提出了几点对纺织品色牢度质量控制时的注意事项.     

滚动字幕条件下的新闻视频检索研究

通过研究滚动字幕存在的条件下新闻标题字幕的显示特点,提出了一种相邻行灰度差极大值结合帧间差新闻标题字幕定位方法,该法包括灰度化预处理、计算相邻行灰度和之差、求出大于阈值的行灰度和之差的极大值、帧间相减等步骤,该方法简单有效,可以很好地消除滚动字幕条的影响,正确定位出新闻视频标题字幕。     

浅议高层商住建筑火灾应急照明系统

本文介绍了民用建筑火灾应急照明系统的概念及应急照明电源的类型,重点分析分散蓄电池和集中型电源(EPS)两种方案的特点,以资借鉴。     

Si衬底上低真空热处理制备单一相Mg2Si半导体薄膜

采用磁控溅射沉积方法制备Mg2Si半导体薄膜。首先在Si衬底上沉积Mg膜,随后低真空热处理。采用X射线衍射、扫描电镜、拉曼光谱对Mg2Si薄膜的结构进行表征。研究了在低真空(10-1～10-2Pa)条件下热处理温度(350～550℃)和热处理时间(3～7h)对Mg2Si薄膜形成的影响。结果表明,低真空热处理条件下制备了单一相Mg2Si半导体薄膜,400～550℃热处理4～5h是最佳的热处理条件。在拉曼谱中256和690cm-1处观察到两个散射峰,这与Mg2Si的拉曼特征峰峰位一致。     

基于扫描电镜表征膜截面样品的制样技巧

高分子膜可用于水处理分离、气体分离、光电膜和医用膜等多个领域,具有重要的研究意义.扫描电镜是表征膜结构和形貌的重要技术手段,实验中发现基膜使用高分子纤维层层压制的膜样品在液氮中韧性强无法脆断,膜截面扫描电镜测试结果不理想.针对这一类膜截面制样难成功率低的问题,根据冷冻切片机的原理,本文提出四种简单易操作的膜截面样品制样...     

QMV22系列钢绞线张拉锚固体系研制与开发

介绍了与1×7-21.6钢绞线配套的QMV22系列钢绞线张拉锚固体系的研制开发.描述钢绞线相关参数和QMTV22锚具构成,并按照现场布筋施工的两种方法,进行试验对比分析.试验表明两种穿筋的方法都能顺利的将钢绞线穿入波纹管,且Φ21.6的钢绞线可满足正常曲线布筋的要求.实践表明Φ21.6的钢绞线有利于简化锚固配筋构造、降低材料和人工消耗,方便施工.