开架借书式     

(捷P.马莱克 《中国图书馆学报》1959,(3)

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中、美两国企业新产品开发方面的比较研究     

冯宗宪  张哲  Micheal.Song  徐芸 《科学学与科学技术管理》2010,31(11)

以研究中美两国企业成功开发新产品的过程及其绩效结果为目的,在文献研究的基础上,首先,构建了基于"能力-优势位置-绩效"观点的成功开发新产品的模型架构,并提出研究假设,其次,利用时中国和美国企业调研的数据对模型进行了实证检验,再次,对比分析了中美两国企业新产品开发的过程和影响因素的作用,最后,探究了中关企业新产品开发过程中的异同.研究结果表明,中国企业产品创新影响因素的作用和影响过程与美国等发达国家有着大体相同的过程路径,但一些主要影响因素对于企业成功开发新产品所起作用的强弱程度异于美国.  相似文献   

三坐标测量机在磁基准中的应用     

H.弗里德姆  W.奥朗  M.派利卡  童建平 《内江科技》2010,31(8):102-102

本文对三坐标测量机（CMM）的用途、基本工作原理、使用工具和方法论以及六级聚焦进行探讨,指出其优势和广阔的应用前景,同时也指出了需要注意的几个方面。  相似文献   

Multiscale fabrication of a transparent circulation type blood vessel simulator     

Nakano T  Itoyama T  Yoshida K  Sawada Y  Ikeda S  Fukuda T  Matsuda T  Negoro M  Arai F 《Biomicrofluidics》2010,4(4):46505

We proposed and fabricated multiscale transparent arteriole and capillary vessel models with circular cross sections of 10-500 μm using photolithography. The circularities of the fabricated 10, 50, and 500 μm diameter microchannels were 84.0%, 61.5%, and 82.3%, respectively. Next, we connected these different models to realize a circulation type blood vessel model simulating arteriole networks. We proposed a novel connection method using an intermediate connector made of wax, which we used to connect these models to make a circulation model. In flow experiments, the fabricated models showed no leakage and circulation models with seamless connections were achieved.  相似文献   

Polyelectrolyte multilayer surface functionalization of poly(dimethylsiloxane) (PDMS) for reduction of yeast cell adhesion in microfluidic devices     

Schmolke H  Demming S  Edlich A  Magdanz V  Büttgenbach S  Franco-Lara E  Krull R  Klages CP 《Biomicrofluidics》2010,4(4):44113

Polyelectrolyte multilayers (PEMs) based on the combinations poly(diallyldimethylammonium chloride)∕poly(acrylic acid) (PDADMAC∕PAA) and poly(allylamine hydrochloride)∕PAA (PAH∕PAA) were adsorbed on poly(dimethylsiloxane) (PDMS) and tested for nonspecific surface attachment of hydrophobic yeast cells using a parallel plate flow chamber. A custom-made graft copolymer containing poly(ethylene glycol) (PEG) side chains (PAA-g-PEG) was additionally adsorbed on the PEMs as a terminal layer. A suitable PEM modification effectively decreased the adhesion strength of Saccharomyces cerevisiae DSM 2155 to the channel walls. However, a further decrease in initial cell attachment and adhesion strength was observed after adsorption of PAA-g-PEG copolymer onto PEMs from aqueous solution. The results demonstrate that a facile layer-by-layer surface functionalization from aqueous solutions can be successfully applied to reduce cell adhesion strength of S. cerevisiae by at least two orders of magnitude compared to bare PDMS. Therefore, this method is potentially suitable to promote planktonic growth inside capped PDMS-based microfluidic devices if the PEM deposition is completed by a dynamic flow-through process.  相似文献   

我们都曾是哭鼻子的小屁孩儿     

dad.震 《当代体育》2010,(2):78-80,F0003

那时花开,流水芳年。 青春很锋利,很容易就划开记忆的容颜,岁月如梭,稍纵即逝,我们还没来得及回忆青涩和苦涩,感受阵痛和欣喜,时间就呼啸而过了。  相似文献   

虎年说虎     

H.tiger 《当代体育》2010,(6)

——现役脑残之王:马布里作为当年96黄金一代的球员之一,马布里如今的生活简直可以用穷困潦倒来形容,自从当年他自称天下第一控卫起,马布里的生涯评定便每况愈下。自此,马布里就开始了与全世界对抗的戏码。最初在森林狼,他就因不满加内特拿到亿元高薪而愤然离开,拆散了一对本该是黄金搭档的组合。在转投纽约后,尽管身为纽约之子,但尼克斯宁可掏出两千万也要请这位大爷走人。自从被尼克斯队抛弃之  相似文献   

终极娱乐——给魔术师和心灵魔术师的导演笔记（节选）     

肯.韦伯  Ang Lee 《杂技与魔术》2010,(3):57-59

第二章神秘娱乐的层次关系 从我们的这边看出去,我们带给观众的表演是魔术效果（effect）。而从观众的角度来看呢,我们的演出可分成三种不同的感受：  相似文献   

A multimethod examination of the relationship between coaching behavior and athletes' inherent self-talk     

Zourbanos N  Hatzigeorgiadis A  Tsiakaras N  Chroni S  Theodorakis Y 《运动与训练心理学杂志》2010,32(6):764-785

The aim of the present research was to investigate the relationship between coaching behavior and athletes' inherent self-talk (ST). Three studies were conducted. The first study tested the construct validity of the Coaching Behavior Questionnaire (CBQ) in the Greek language, and provided support for its original factor structure. The second study examined the relationships between coaching behavior and athletes' ST in field, with two different samples. The results showed that supportive coaching behavior was positively related to positive ST (in one sample) and negatively related to negative ST (in both samples), whereas negative coaching behavior was negatively related to positive ST (in one sample) and positively related to negative ST (in both samples). Finally, the third study examined the relationships experimentally, to produce evidence regarding the direction of causality. The results showed that variations in coaching behavior affected participants' ST. Overall, the results of the present investigation provided considerable evidence regarding the links between coaching behavior and athletes' ST and suggested that coaches may have an impact on athletes' thoughts.  相似文献   

Longitudinal examination of the exercise and self-esteem model in middle-aged women     

Elavsky S 《运动与训练心理学杂志》2010,32(6):862-880

This 2-year prospective study examined the exercise and self-esteem model in middle-aged women (N = 143) previously enrolled in a randomized controlled exercise trial. Across the 2-year period, increases in physical activity (PA) and self-efficacy and reductions in body mass index (BMI) were associated with improved subdomain self-perceptions relative to physical condition, and reductions in BMI were associated with improved subdomain self-perceptions relative to physical condition and body attractiveness. The effects of PA, self-efficacy, and BMI on changes in physical self-worth and global self-esteem were mediated by changes in self-perceptions relative to physical condition and body attractiveness. The results of this longitudinal analysis support the hierarchical and multidimensional structure of self-esteem and indicate that middle-aged women can enhance how they perceive their condition and body attractiveness by continued participation in physical activity, increasing their self-efficacy, and maintaining healthy BMI levels.  相似文献