创造时代精品 满足客户需求——访株洲新时代输送机械有限公司董事长陈英

正陈英,株洲新时代输送机械有限公司董事长,1969年生于湖南省石门县,土家族。1991年毕业于北京理工大学机械工程系,分配于株洲市链条总厂工作,成为技术、销售业务骨干。2000年9月,创办株洲市新元电子机械设备制造有限公司,担任总经理职务。2004年9月成立株洲新时代输送机械有限公司,先后任总经理、执行董事。     

高粱IS1112C（A3）雄性不育胞质的育性恢复由两个基因转变成1个基因

杂交高粱种子的生产取决于胞质核雄性不育性(CMS)的利用。目前广泛采用的高粱CMS资源是来自milo或雄性不育诱导的milo胞质组。载有该胞质的品系的育性恢复急需通过两个基因的互补作用机制来实现；1989年Sehertz等人研究了大量的高粱品系，     

论大众文化对我国大学校园文化的影响

自20世纪90年代以来,大学校园中出现了一股大众文化热.分析了大众文化对我国校园文化的积极影响和消极影响,在此基础上提出未来大学校园文化的构建设想.     

“摆环阵”——保证处女王交尾成功的妙法

“摆环阵”──保证处女王交尾成功的妙法［美国］多伊尔，Ｖ．当您培育王台时，是否想到如何保证处女王都成功地交尾产卵呢？假如您对培育蜂王的这最后一步给以充分重视，就一定会育成更多的新蜂王。奇怪得很，告诫我们如何获得优质王台的资料比比皆是，而对于怎样组织交...     

土耳其香料烟草生产及其管理

80年代初,土耳其香料烟生产发展不快。1981年全国种植面积17.0万公顷,产量仅15万吨,80年代中期,由于国际上混合型卷烟和低焦油卷烟工业发展的需要,1988年,香料烟种植面积达30.2万公顷,香料烟生产量达27.05万吨,比1987年增加59.1％。土耳其的香料烟主要分布在爱琴海、黑海、马尔马拉海沿岸,丘陵地区和经济不发达地区。     

Recovery of Mycoplasma spp. from the Reproductive Tract of the Mare during the Estrous Cycle

The sites in the genital tract from which mycoplasmas could be recovered at various stages of the estrous cycle were studied in five Standardbred mares naturally infected with Mycoplasma. Mycoplasma equigenitalium and Mycoplasma subdolum were most frequently isolated from the clitoral fossa as compared to the vagina, cervix, and uterus. The lowest isolation prevalence was observed in the uterus. The recovery of Mycoplasma spp. from the clitoral fossa did not differ at any stage of the estrous cycle; however, recovery from the vagina, cervix, and uterus was variable during the cycle and more organisms were recovered on the day of ovulation than at any other time. From these results it was concluded that the clitoral fossa is the most likely “ecological niche” for Mycoplasma spp. in the mare. Ureaplasmas were not isolated.     

A formation mechanism for catalytically grown helix-shaped graphite nanotubes

The concept of a spatial-velocity hodograph is introduced to describe quantitatively the extrusion of a carbon tubule from a catalytic particle. The conditions under which a continuous tubular surface can be generated are discussed in terms of this hodograph, the shape of which determines the geometry of the initial nanotube. The model is consistent with all observed tubular shapes and explains why the formation process induces stresses that may lead to "spontaneous" plastic deformation of the tubule. This result is due to the violation of the continuity condition, that is, to the mismatch between the extrusion velocity by the catalytic particle, required to generate a continuous tubular surface, and the rate of carbon deposition.