白老鼠的试验室 被动安全测试机构

白老鼠为西医的发展做出了不可磨灭的贡献，作为汽车被动安全测试的白老鼠样车、假人(Dummy)和试验室也为汽车被动安全技术的突飞猛进立下了汗马功劳。     

基于SDN的两级大象流负载均衡策略

以SDN网络为基础,提出一种解决数据中心网络拥塞的大象流负载均衡策略,完善了负载均衡整体框架.第一阶段使用sFlow收集网络状态,通过降低大象流误检率,采用突出大象流漏检率并设置阈值以判定可疑大象流;第二阶段应用基于流持续时间判定真正大象流,剔除已变质大象流,并将两阶段的大象流检测方法嵌入整体负载均衡架构中;最后在ubuntu系统环境下利用Mininet搭建胖树网络拓扑,以Ryu为控制器进行仿真模拟测试,通过控制流量负载验证大象流负载均衡策略.试验结果表明,提出的大象流负载均衡策略可提高数据中心网络中大象流与老鼠流的检测效率和网络链路利用率,并可减小网络传输时延.     

Fine Mapping of a Deafness Mutation hml on Mouse Chromosome 10

Objective To map a mouse deafness gene.identify the underlying mutation and develop a mouse model for human deafncss.Methods Genetic lindage cross and genome scan wer used to map a novel mutation named hypoplasia of the membranous labyrinth (hml),which causes hearing loss in mutant mice.Results ① hml was mapped on mouse Chr 10 (～43 cM from the centromere) suggests that the homologous human gene is on 12q22--q24, which was defined on the basis of known mouse-human homologies (OMIM,2004). ② This study has generated 25 polymorphic microsateUite markers, placed 3 known human genes in the correct order in a high-resolution mouse map and narrowed the hml candidate gene region to a 500 kb area.     

旅客列车鼠害事故树分析

对旅客列车鼠害原因进行了调查和事故树分析，并就分析提出了预防和减少列车鼠害的方法。     

治理公路超载良方——计重收费

自2004年6月份以来,全国上下开展了一场声势浩大的治理公路超限超载运输战役。交通部的通知和各项统计数字显示,治超收到了一定的效果,在全国范围内肆无忌惮的超载现象大多已得到了遏制。但是,就个别地区和部分城市,汽车超载现象并未彻底根治,尤其中短程超载仍旧十分猖撅,不法车主以各种手段玩着“猫抓老鼠”的游戏。     

老鼠作怪，雅阁进修理厂

本人有一辆2．4L雅阁轿车，行驶了2.3万km，除了保养外，没有一次因人为因素而进过修车厂。但一次让人哭笑不得的意外，让雅阁车“开了荤”。     

索马里海盗

被索马里海盗劫持的我国渔船“天裕8号”虽然3个月后已成功获救，但与索马里海盗的斗争才刚刚开始。索马里海盗组织严密、社会性强，已形成强大的现代化海盗企业集团，索马里动荡的国内局势及穷困撩倒的百姓，为海盗滋生孕育了良好的温床。联合国安理会已正式授权对索马里海盗进行陆海空全方位打击，这场多国部队的联合行动面临的恐怕是一场持久战，究竟鹿死谁手，最终是猫捉老鼠j还是老鼠戏猫，谁也不敢妄下断言。     

EFFECT OF SIMULATED WEIGHTLESSNESS ON REPRODUCTION OF ADULT MALE RATS

Objective To study the effects of simulated weightlessness induced by tail-suspension on reproduction in adult male rats and its mechanisms. Methods Twenty Spraque-Dawley adult male rats were randomly divided into two groups： the experimental group and control group. Rats in the experimental group were tail-suspended for 14 days. After the treatment, the weight and morphology of testis, the quantity and quality of sperm, the level of serum testosterone and the apoptusis rate of testicular cells were observed. Results Compared with the control, the testicular weight, the quantity and quality of sperm, the level of serum testosterone significantly decreased （P〈0.05） while the apoptusis rate of testicular calls significantly increased （P〈0.05） in tail-suspended rats. In addition, hematoxylin and eosin （HE） staining showed that seminiferous tubules atrophied, spermatogenic cells decreased, seminiferous epithelial cells disintegrated and shed, and the lumina were azoospermic. Conclusion Simulated weightlessness induced by tail-suspension has a harmful effect on male reproduction of adult rats by increasing the apoptusis of testicular cells.     

GROWTH DIFFERENTIATION FACTOR-5 STIMULATES THE GROWTH AND ANABOLIC METABOLISM OF ARTICULAR CHONDROCYTES

Growthdifferentiationfactor5(GDF5),also knownascartilage derivedmorphogeneticprotein1(CDMP1),isamemberofthebonemorphogenet icprotein(BMP)familywhichbelongstothe transforminggrowthfactorβ(TGFβ)superfami ly[1].GDF5isarelativelynewmemberofthe BMPfamily.LikeotherBMPs,implantationofre combinantGDF5caninduceectopiccartilagefor mationinmusculartissues.Thephysiologicalrole ofGDF5hasbeenreportedincludingregulationof myogenesis,regulationofchondrogenesis,bone morphogenesis,andneurondifferen…     

绩效管理怎样才有效？

从老鼠偷油事件这一案例出发，在对老鼠偷油不成功的原因进行分析后，导入企业绩效管理的问题，通过对绩效管理的研究，提出企业如何构建有效绩效管理的方法和理念，以及在实施绩效管理过程中应该注意的误区。