南昆线板其二号大桥有机玻璃模型试验

介绍了一座铁路曲线预应力混凝土连续刚构桥的有机玻璃全桥模型试验，包括静载和自振特性的测试主要结果，并据此对该桥的刚度和曲率的影响等进行了研究。     

雪莲黄酮总甙对人外周血单个核细胞功能的影响

研究了雪莲黄酮总甙对人外用血单个核细胞（PBMC）功能的影响，结果发现雪莲黄酮单独应用可诱导PBMC细胞毒活性，其浓度在0．6μg／ml时，作用最明显（p＜0．05）。且可显著增强亚适剂量HrIL－2诱导的PBMC的细胞毒活性，而对大剂量IL－2的诱导作用没有影响。     

T LYMPHOCYTE SUBSETS OF PERIPHERAL BLOOD AND THEIR RELATIONSHIP WITH BETA－2－MICROGLOBULIN IN MULTIPLE MYELOMA

ＴＬＹＭＰＨＯＣＹＴＥＳＵＢＳＥＴＳＯＦＰＥＲＩＰＨＥＲＡＬＢＬＯＯＤＡＮＤＴＨＥＩＲＲＥＬＡＴＩＯＮＳＨＩＰＷＩＴＨＢＥＴＡ－２－ＭＩＣＲＯＧＬＯＢＵＬＩＮＩＮＭＵＬＴＩＰＬＥＭＹＥＬＯＭＡ（郑成云）（陈学民）（王宝燕）（陈开浚）ＺｈｅｎｇＣｈｅｎ...     

基于关系数据模型的分销管理系统

将分销管理方面的概念、思想应用于流程管理系统的开发中,就能得到根据具体的业务流程设计过程模型,从而具有一定通用性和灵活性的软件系统。本文希望通过引入分销管理的思想,建立一个具有一定通用性的、能够灵活应用的流程管理系统。同时也为了解决传统MIS开发中的不易修改问题,作者开发了一个基于关系数据模型分销管理系统,本文论述了该系统的设计思路和实现机制。     

对转K2型转向架几项配件结构的分析

对转K2型转向架几项配件在运用、检修过程中所反映出来的有关问题,从其结构上进行了分析,并提出了相应的改进建议。     

Design and Implementation of the Motion Compensation Module for HDTV Video Decoder

Introduction The HDTV format adopts MPEG-2MP@HLvideo standard for the encoding and decoding ofhigh definition video information[1].Motion com-pensation is one of the key techniques used to con-siderably decrease the time redundancy of a videosequence and make the format reach a high com-pression ratio.As for hardware implementation,however,the motion compensation module is one ofthe most computation-intensive and I/O intensiveparts in an HDTV video decoder[2],and thereforeit is also the…     

基于J2EE的船舶机务管理信息系统研究

根据现代船舶机务管理的现状和发展的趋势,对船舶机务管理信息系统功能与业务流程进行了系统的分析,并结合J2EE(Java 2 Platform Enterprise Edition)框架的技术特点,提出了以高效、安全为基础的系统设计思想。基于层次化组件模式的J2EE平台的技术优势,率先提出了将系统的业务逻辑和底层实现技术分离出来,从而大大提高了船舶机务管理信息系统的可伸缩性、可扩展性、易开发和易维护性。     

Air–sea CO2 fluxes in the Caribbean Sea from 2002–2004

Air–sea fluxes in the Caribbean Sea are presented based on measurements of partial pressure of CO₂ in surface seawater, pCO_2sw, from an automated system onboard the cruise ship Explorer of the Seas for 2002 through 2004. The pCO_2sw values are used to develop algorithms of pCO_2sw based on sea surface temperature (SST) and position. The algorithms are applied to assimilated SST data and remotely sensed winds on a 1° by 1° grid to estimate the fluxes on weekly timescales in the region. The positive relationship between pCO_2sw and SST is lower than the isochemical trend suggesting counteracting effects from biological processes. The relationship varies systematically with location with a stronger dependence further south. Furthermore, the southern area shows significantly lower pCO_2sw in the fall compared to the spring at the same SST, which is attributed to differences in salinity. The annual algorithms for the entire region show a slight trend between 2002 and 2004 suggesting an increase of pCO_2sw over time. This is in accord with the increasing pCO_2sw due the invasion of anthropogenic CO₂. The annual fluxes of CO₂ yield a net invasion of CO₂ to the ocean that ranges from − 0.04 to − 1.2 mol m^− 2 year^− 1 over the 3 years. There is a seasonal reversal in the direction of the flux with CO₂ entering into the ocean during the winter and an evasion during the summer. Year-to-year differences in flux are primarily caused by temperature anomalies in the late winter and spring period resulting in changes in invasion during these seasons. An analysis of pCO_2sw before and after hurricane Frances (September 4–6, 2004), and wind records during the storm suggest a large local enhancement of the flux but minimal influence on annual fluxes in the region.     

浙江省B2C电子商务企业物流模式探讨

B2C电子商务企业能取得多大的成功很大程度上依赖于实际物流的操作,B2C电子商务企业必须根据自身情况,正确选择和采用企业自营物流模式或是第三方物流模式。本文根据实地调研的数据,就浙江省B2C电子商务企业的物流模式存在的问题进行分析探讨,寻求成本低廉、需求响应快速、安全可靠且适宜的物流模式。     

一种自组织的P2P代理协议和搜索算法

针对当前互联网中大量使用的防火墙、代理技术和地址转换协议等给P2P (Peer to Peer)网络造成的通信障碍问题,提出了一种新型的P2P网络的代理协议(S4P),同时提出了对代理服务的搜索算法。该协议采用自组织的方式,使组成P2P网络的节点能够动态穿越双方所受到的通信障碍,解决网络中存在的对P2P连接的限制问题,增强了P2P网络的连接能力和资源访问与共享能力。仿真结果表明,S4P不仅可以完成节点间数据交换的要求,而且具有较好的性能。