HTPC最爱：蓝宝连发H67、H61 Mini—ITX迷你小板

蓝宝旗下产品除了AMD显卡享有盛名,如今也在不断扩大领域,面向Intel平台的主板是越来也多,今天就新增了两款采用Mini—ITX迷你规格的小板。     

浅谈OMRON—H3CA微型显示器的应用

浅谈OMRON—H3CA公效型显示器,功能和控制方式,应用于大型真空接触器三相触头闭合测试方面。     

SPA—H钢红色锈蚀的成因及预防研究

现察了SPA-H钢薄板表面的红色锈蚀现象,采用静态控温氧化实验等方法.分析了产生红色锈蚀的主要原因,提出了通过控温采防止红色锈蚀产生的措施.     

24EYH—H20B—I3电液换向阀工作原理,特点及故障分析

这篇文章主要介绍了24EYH—H20B电液换向阀的工作原理及阀体内部结构,并通过对阀体的分析,说明该阀的工作原理特点。总结了电液换向阀经常出现的故障,并针对故障原因得出解决故障的办法。     

LX—H767TA4型电脑红外光乳腺诊断仪故障两例

红外光乳腺诊断仪是利用红外光透照乳腺组织,被血红蛋白吸收的多少而在图象中显示出肿块的不同灰度、血管影变化的原理检测良恶性肿瘤的一种仪器,由于其属于精密电子仪器类,价格较贵,为了提高诊断率,延长仪器的使用寿命。现就LX—H767TA4型电脑红外光乳腺诊断仪故障两例作分析如下:     

F—H···F是最强的氢键吗

本文简要介绍了氢键的强弱分类,并讨论了F-H…F形成弱氢键和强氢键的不同情况,得出F-H…F并不是氢键上限的结论。     

Role of prostaglandin in the regulation of gastric H+—Transporting system

Prostaglandins and (PG) have been reported to be an important gastric acid suppressive factor. However, the mechanism underlying is yet to be clearly established. In vitro study with gastric microsomes in presence of both PGE₂ and PGI₂ shows a stimulation of gastric H⁺ K⁺-ATPase activity below 1X10⁻⁶M and 2.5X10⁻⁷M concentrations respectively. However, with further increase in concentrations of both PGE₂ and PGI₂, H⁺, K⁺-ATPase activity shows an inhibition but PGI₂ completely obliterates the K⁺ stimulated part of H⁺, K⁺-ATPase activity at higher concentration. The H⁺-ion transport study using chambered frog gastric mucosa shows that both PGE₂ and PGI₂ inhibit H⁺-ion transport at 5X10⁻⁶ M and 10X10⁻⁶M concentrations respectively but the effect of PGI₂ is reversible. These differential effects of PGE₂ and PGI₂ on microsomal H⁺, K⁺-ATPase and on H⁺ transport my be caused by the differential effects of these phospholipid mediators with the gastric mucosal cell membrane. This in vitro investigation shows the role of prostaglandin (s) as a physiological switch/regulator of gastric H⁺ ion transport leading to the cessation of gastric acid secretion.     

悍马H2

这款新车虽然不是为军队设计的，但性能一点也不差。     

期刊评价:H5和H5中位数

通过分析H5指数(H5)和H5中位数指数(H5中位数)对期刊评价的应用,以WOS(Web of Science)收录的图书情报学(LIS)期刊52种和农学(Agronomy)期刊61种共113种期刊为研究样本。利用相关分析法对从Google Scholar Metrics收集期刊的H5、H5中位数及影响因子(IF)、5年影响因子(IF5)、特征因子分值(Eigenfactor Score,ES)与论文影响分值(Article Influence Score,AIS)进行分析,结果表明,Google Scholar Metrics期刊的H5、H5中位数与IF、IF5、EIS、AIS均呈显著正相关,H5、H5中位数是可用于期刊评价的优秀指标。     

Mycobacterium tuberculosis H37Ra ESAS-7—An excretory-secretory antigen fraction of immunodiagnostic potential in pulmonary tuberculosis

A mycobacterial excretory-secretory protein fraction ESAS-7 purified by 50% ammonium sulphate precipitation followed by SDS-PAGE fractionation was evaluated by penicillinase enzyme linked immuno-sorbent assay (ELISA) for its sensitivity and specificity in the diagnosis of pulmonary tuberculosis. At a “cut off” serum dilution of 600, 38 (90%) of 42 sera from bacteriologically confirmed tuberculosis cases, 15 (100%) of 15 sera from bacteriogically negative but anti tubercular therapy (ATT) responded cases, 3 (7%) of 43 sera from normal healthy subjects and 4 (8%) of 48 sera from non tuberculous disease control cases gave positive reaction for tubercular antibody to ESAS-7 antigen fraction containing predominantly 33-kDa protein with a sensitivity of 90% in bacteriologically confirmed cases and specificity of 92%. Further, this diagnostic assay using the ESAS-7 antigen is more sensitive requiring as little as one nanogram antigen per test compared to use of 100 nanogram EST-6 antigen reported earlier. Thus use of ESAS-7 antigen for antibody detection has good diagnostic potential with improved specificity in pulmonary tuberculosis.     

H是一座城

两队女兵,如挺拔的白杨整齐地站立着.为期半个月的训练即将开始,训练结束后,10个女兵将被选拔去执行一项特殊任务. 女兵甲和女兵乙分别担任1班和2班的班长.教官对女兵甲的表现最为满意,她开朗、干练、坚韧,然而,在最后几天的训练项目中,女兵乙的表现让教官对她刮目相看.     

H1N1营销

病毒营销确实像生物病毒的发家史一样,在很短的时间内开始让很多人惶恐不安。不仅创意人像找到了新的发泄地一般,将尘封了多年无法在主流媒体露脸的idea一股脑地在网络世界实现;连客户也开始叫嚣着,想方设法地把商业动机潜伏于这种瞬间影响亿万人的营销手段。     

国家重点实验室H指数与H指数的人员贡献Q率

H指数是由Hirsch JE提出的一个用来评价科学工作者科学成就的指标.将H指数应用于国家重点实验室的科技论文水平评价,同时为了体现科研群体对其H指数的贡献,提出了实验室H指数人员贡献率Q的概念和计算方法,并给出一个具体实例.实验室H指数和O率可以在一定程度上反映实验室科研人员的整体学术状况.     

H股上市八大要诀

中国企业到境外上市，现在依然是以H股为主流，除非有外资做股东及有合法外汇，否则不能以境外控股的模式上市。H股上市最容易出现的问题是关联交易或董事局太大，但最简单的地方也是最容易出错的。