动力工程     

《中国科技信息》2006,(12):324-326

一种值得关注的城市天然气消费方式：双源可逆型供暖（空调）系统，球形不锈钢电离室响应实验研究,湿蒸汽两相压缩过程工作特性理论研究，天然气-氢气-空气混合气的层流燃烧速度测定,基于分布式供能技术的能源系统.[编者按]  相似文献   

同时采用多种方法鉴定血型及凝聚胺技术配血的方法     

张庆夕  柳志全  张晓曦 《内蒙古科技与经济》2002,(7)

目的 :探讨在临床输血工作中为防止输血错误而采用较好的定血型配血方法。方法 :按照《全国临床检验操作规程》第二版规定的 ABO血型正定法、反定法、Rh抗 D定型法同时进行 ;采用凝聚胺技术配血。结果 :5 2 69人中发现 Rh抗 D阴性 2 2例 ,ABO血型正定与反定不相符合 1 2例 ,不确定血型 3例 ,凝聚胺方法配血不合 2例。结论 :对同一份血样 ,同时采用三种方法鉴定血型和凝聚胺技术配血 ,可以非常有效地防止定型错误和配血错误 ,保证了临床安全输血。  相似文献   

Cell therapy in congestive heart failure   总被引：5，自引：0，他引：5  

Tao ZW  Li LG 《Journal of Zhejiang University. Science. B》2007,8(9):647-660

Congestive heart failure （CHF） has emerged as a major worldwide epidemic and its main causes seem to be the aging of the population and the survival of patients with post-myocardial infarction. Cardiomyocyte dropout （necrosis and apoptosis） plays a critical role in the progress of CHF; thus treatment of CHF by exogenous cell implantation will be a promising medical approach. In the acute phase of cardiac damage cardiac stem cells （CSCs） within the heart divide symmetrically and/or asymmetrically in response to the change of heart homeostasis, and at the same time homing of bone marrow stem cells （BMCs） to injured area is thought to occur, which not only reconstitutes CSC population to normal levels but also repairs the heart by differentiation into cardiac tissue. So far, basic studies by using potential sources such as BMCs and CSCs to treat animat CHF have shown improved ventricular remodelling and heart function. Recently, however, a few of randomized, double-blind, placebo-controlled clinical trials demonstrated mixed results in heart failure with BMC therapy during acute myocardial infarction.  相似文献   

Effect of a distal protection device on epicardial blood flow and myocardial perfusion in primary percutaneous coronary intervention   总被引：2，自引：0，他引：2  

Zhou BQ  Tahk SJ 《Journal of Zhejiang University. Science. B》2007,8(8):575-579

Objective: The beneficial effect of percutaneous coronary intervention (PCI) in patients with acute myocardial infarction (AMI) has been well established, but there is the problem of no-reflow phenomenon which is an adverse prognostic factor in primary PCI. In the present study the effect of a distal protection device (PercuSurge GuardWire; GW) on epicardial blood flow and myocardial perfusion was evaluated. Methods and Results: Patients with AMI were randomly divided into 2 groups, the GW and the control groups. The GW group included 52 patients with AMI who underwent primary PCI with GW protection and the control group included 60 patients who underwent primary PCI without GW protection. Epicardial blood flow in the infarct-related artery (IRA) and myocardial perfusion were evaluated according to the thrombolysis in myocardial infarction (TIMI) flow grade and the myocardial blush grade (MBG). We found TIMI score of 3 was obtained significantly more frequently in the GW group (96%) than in the control group (80%). The MBG score of 3 was obtained also significantly greater in the GW group (65%) than in the control group (33%). Conclusion: Primary PCI with GW protection can significantly improve epicardial blood flow and myocardial perfusion.  相似文献   

教材换血：还原语文教学的本质     

单士兵 《中学教育》2007,(9):33-34

北京市九区县的高中语文课本大换血:金庸武侠小说《雪山飞狐》替掉《阿Q正传》,余华小说《许三观卖血记》替掉《陈焕生进城》,海子诗歌《面朝大海,春暖花开》则替掉《孔雀东南飞》,这套教材的推荐选修课部分还收录了一篇《新鲜的网络语言》。当代作品大量涌现,传统篇目则淡出视野。  相似文献   

HOB0ceЛbe     

林洁 《中学俄语》2011,(8):27-28,64

  相似文献   

Интересная покупка     

王宇波 《中学俄语》2011,(Z1)

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彭彭播报     

《初中生世界(初三物理版)》2011,(25)

北京时间7月20日,NBA休斯敦火箭队球员、中国篮坛历史上最伟大的中锋姚明召开新闻发布会,向外界宣布正式退役,结束了自己9年NBA生涯。美国陆军近日宣布,纳蒂克士兵中心已收到一份需求书,称美国陆军需要能携带500发弹链安装7.62毫米机枪弹的背包,背包上需配有为M2407.62毫米机枪供弹的输弹带,确保士兵即使背着  相似文献   

试论《恋爱中的女人》男主人公之间的情结     

刘小辉  张喆 《黄河科技大学学报》2011,13(6):106-108

结合劳伦斯本人的观点,通过对其小说中两位男主人公伯金和杰拉德之间微妙关系的分析,充分证明了《恋爱中的女人》中男主人公之间并不是同性恋,而是男性间的血谊兄弟关系。不仅在这部作品中,劳伦斯本人及其他作品中的很多男性都渴望和追寻着这种血谊兄弟,并借此表达对男性美的欣赏和赞颂、男性间的崇拜和臣服以及对女人和婚姻的逃避和补充。  相似文献   

论劳伦斯的“血性意识”     

钟鸣 《郴州师范高等专科学校学报》2011,(1):80-83,102

“血性意识”是英国作家D·H劳伦斯的基本性观念。其主要涵义是反对理性对性爱的干涉,追求灵肉和谐结合、“星式均衡”的男女两性关系。劳伦斯从性这一特殊角度批判了资本主义工业文明对人性的扭曲,并探索建立自由健康的男女两性关系。但是劳伦斯所谈的灵肉合一,星式均衡是抽象的,没有触及到资本主义社会的本质,因而批判是乏力的。而他大量赤裸裸的性描写则是非常具体的,有很大的负面作用。特别是他想通过改善男女关系进而改良社会,更是本末倒置。  相似文献