一种网络多媒体教学软件开发的新方法

介绍一种网络多媒体教学软件开发的新方法。重点讨论了开发过程中多媒体、网络、数据库等技术。解决了课件开放性、单机运行和网络运行方面的一些问题。用Ａｕｔｈｏｒｗａｒｅ开发平台和文中介绍的方法，可一次性开发出单机版和网络版教学软件，极大地减少软件的开发费用。     

稀浆封层施工技术

通过稀浆封层及施工技术的应用，着重介绍乳化沥青稀浆封层施工前的准备，各种原材料的配料计算。施工注意事项及施工质量检验。     

双悬臂式结构闸室施工期的稳定计算

钢筋混凝土双悬臂式结构闸室自重轻、造价省、应用广泛,但在施工期回填土某段时间内地下水的浮托力可能超过结构自重加回填土压重;或是地下水的倾覆力矩超过闸室墙后水土压力的平衡力矩,从而导致整个闸室结构的破坏。因此,必须进行施工期的稳定计算,并采取相应压重措施以确保闸室结构施工期的安全。     

近年来美国重型卡车上主要应用的新技术

美国是世界上重卡生产和使用的大国．技术发展水平较高。针对美国近年来重型卡车技术发展,介绍了货物自动称量、单线多路网络传输等20项新技术在重型卡车上的应用情况。     

基于物流信息平台的配送车辆导航系统设计

提出了基于物流信息平台的配送车辆导航的思想,弥补了现有车辆导航系统无法适应物流配送车辆特性的不足,较好地解决了物流配送车辆导航的问题;对基于物流信息平台的配送车辆导航系统的功能模块、总体结构进行设计,分析了其数据流程,并对配送车辆导航系统与物流信息平台之间的信息关联进行了分析,阐述了本系统的优势.     

急性砷染毒的L-02细胞的基因芯片分析

目的　用基因芯片分析急性砷染毒时人正常肝细胞 (L 0 2细胞 )基因表达谱的变化。方法　亚砷酸钠染毒L 0 2细胞 2、15、2 4h与未染毒的L 0 2细胞作表达谱基因芯片杂交。结果　L 0 2细胞用砷剂染毒后不同时间基因表达谱不同。hCYR6 1基因在细胞染毒 2h后就表达增加 ,而在 15h和 2 4h后均不再升高 ;在细胞染毒后的不同时段 ,细胞金属硫蛋白Ⅳ及金属硫蛋白Ⅲ同源基因的表达均显著增加 ;热休克蛋白 86基因在细胞染毒 2h未增加 ,在 15h和2 4h表达均增加。结论　细胞接触砷毒后进入应激状态 ,合成最必需的与解毒功能相关的蛋白 ,而抑制暂时非必需蛋白的合成     

THE EFFECT OF EXOGENOUS SURFACTANT ON THE EUSTACHIAN TUBE FUNCTION IN THE GERBIL MODEL OF SECRETORY OTITIS MEDIA

Secretoryotitismedia (SOM )isacommondis easeandasignificantworldhealth problem .Al thoughSOMiswellrecognizedatclinicallevel,itspathogenyispoorlyknown .Theeustachiantubeservesanimportantfunc tioninequalizingpressurebetweenthemiddleearandthenasopharynx .Theeustachiantubeinthenormalstateisclosed ,butintermittentlyopensbytheactionofthetensorvelipalatiniandlevatorvelipalatinimusclesduringswallowing .Absenceofsurfactantoneustachiantubeisoneofimportantreasonsoftheirdysfunction .Thisre searchinject…     

THE RECOGNITION SYSTEM OF MOVING MACHINE PRINTED MARK／NUMERAL

1 Introduction Manyindustrialprocessesneedthecapabilities ofautomaticprocessingforproductinformationto controltheproductquality.Theexpirydateand productidentification(e.g.batchnumber)aretyp calproductinformationwhichareoftenprinted omewhereontheoutsideof…     

A METHOD OF REALIZING THE VISUAL REPOSITORY BASE ON SVG STANDARD

1 Introduction Thetraditionaltechniqueusedtoestablishare positoryistoprovideatext inputinterface.This techniqueissuitableforthesituationswheretheda taisnotlarge.Itfailsforthecaseswhenthedatais hugeandcomplicated.Itshouldbereplacedbythe visualandgraphica…     

THE STUDY OF POPULATION GENETIC RELATION AMONG TEN ETHNIC GROUPS IN NORTHWEST CHINA

Objective To investigate the genetic relation among ten ethnic groups in northwest China. Methods Allele frequencies of six STR(short tandem repeat) loci in D13S1358, VWA, FGA, D5S818, D13S317, and D7S820 were collected from Lasa Tibetan, Changdu Tibetan, Xi‘an Han, Gansu Dongxlang, Gansu Yugu, Xinjiang Uygur,Ozbak, Kirgiz, Sibe, Ningxla Hui by the results of State Key laboratory, Forensic Science Department, school of medical, Xi‘an Jiaotong University and internet biological information data bank, and compared with that of the Mongolian, Zhuang in China, and White and Negro in USA. The polymorphism index (H, DP, PPE, PIC) and genetic distance, then the phylogenetic tree of all population were reported. Results The resulting tree topology exhibited strong geographic and racial partitioning consistent with that obtained with HLA and classical genetic polymorphisms.Conclusion The results suggest that forensic STR loci may be particularly powerful tools and provide the necessary fine resolution for the reconstruction of recent human evolutionary history.