内核级并发通信的研究

提出了一种内核级并发消息通信机制。该机制采用对象传送协议和动态线程池技术,并通过会话控制完成数据的收发过程,将线程池设计为二级阻塞队列来暂缓线程的撤销过程,从而保证既能够快速响应客户请求,又可减少因频繁创建和撤销线程而消耗系统的资源和时间,为分布式操作系统提供了高效可靠的通信服务。     

鲁国古泮池遗址今何在——基于文献学角度的考察

据《水经注》等古文献记载:鲁泮池、泮台与汉太子钓鱼池、太子钓鱼台同在鲁故城西南部,地理位置相近,但却分属于不同的古建筑群遗址,形状也尽不相同。明中期衍圣公孔弘绪与孔弘泰分别在太子钓鱼池遗址和古泮池遗址上修建有南池别墅(又名南溪)和东庄别墅(又名东池)。明正德、嘉靖年间"移城护庙",新建阙里城东墙恰好从太子钓鱼池和古泮池中间穿过。太子钓鱼池留在了明城内,古泮池则被隔在了明城外。清乾隆年间,在明城内太子钓鱼池遗址上修建"古泮池行宫",乾隆帝"古泮池证疑"将其地定为古泮池。由此古泮池与太子钓鱼池张冠李戴,明城外真正的古泮池遗址再也无人问津。     

基于Web的远程教学管理系统的设计及实现

远程教学管理系统是进行远程教学的重要保证,利用它可以合理地调配教学资源、组织教学活动、总结教学数据,并有效地对远程学习中心实行业务指导和监控,保证教与学过程管理的时效。本文结合北京邮电大学网络教育学院学生管理的需求,分析了远程教学管理系统的设计及实现方案,利用www上的应用系统,实现了跨平台的、灵活的、通用的远程教学管理系统。     

论中国企业的人才管理新思维

随着全球一体化经济和科学技术的迅猛发展，“人才管理”逐渐在中国落地生根，但在企业的实践中却遇到了许多问题，此时中国企业急需寻求更加科学、高效、低成本的人才管理方法，以满足企业发展对人才的需求。     

Social Policy from Olson to Ostrom: A Case Study of Dutch Disability Insurance

Social policy development and reform in corporatist welfare states often follows a pattern of subsequent collectivization and de‐collectivization. This has to do, the article argues, with the social problems these phases address. Early social policy development forms a response to Olson‐type collective action problems that organized actors (labour and employers' organizations) in the field experience: state‐obliged benefits solve free rider problems, while bipartite administration allows labour and employers' organizations to organize their constituencies. This solution to Olson‐type collective action problems, however, also constitutes an Ostrom‐type collective action problem. Such a system functions as a common pool resource. Individual benefit take‐up is experienced as free and the costs of benefit take‐up are collectivized in the common pool. The article illustrates this pattern with reference to Dutch disability insurance.     

共同但有区别责任：基于全球HWP碳库替代减排的责任分担

从“减排能力原则”的视角,依据全球20个代表性HWP生产国的经济发展水平和技术效率提升速率设置4个分析情景,使用GFPM模型模拟并评价2010—2030年全球HWP碳库变动和相应的责任分担。研究表明：①技术效率是提升全球HWP碳库水平的重要因素,发达国家若以既定于样本国平均进步速率提升自身技术效率,可以实现2．9×103 TgC的全球碳库增量。②发达国家HWP碳库替代减排的能力较强,应承担76％～97％的责任,发展中国家的减排分担仅需发达国家的11％～31％。③美国、瑞典、芬兰和德国是全球HWP碳库替代减排责任的主要承担国,中国技术效率优势明显,其HWP碳库的减排替代将在未来应对气候变化中具有重要的分担贡献。     

氯化物熔体中制取钬铜合金的电极过程

用循坏伏安法、恒电位电解断电后的电位－时间曲线、电位阶跃下的电流－时间曲线以及X－射线衍射法进行了在KCl-HoCl3熔体中Ho63 在铜电极上还原形成钬铜合金的电极过程。Ho^3 在铜电极还原时，在形成金属间化合物HoCu5等后才出纯金属钬。测定了HoCu5四种金属间化合物的生成自由能和Ho原子在HoCu5中的扩散系数及扩散活化能。     

水厂混凝土池壁裂缝的预防

通过对水厂混凝土池壁裂缝产生的原因分析，提出预防措施，并在实践中得到应用，取得较好效果．     

Habitat origins and microhabitat preferences of urban plant species

Urban vegetation is commonly described as dominated by weedy species that are adapted to human disturbance. In this study, we determined the original (pre-agriculture) habitats of urban plant species sampled quantitatively in the spontaneous vegetation of a university campus in Halifax, Nova Scotia (eastern Canada). We sampled 11 distinct patch types corresponding to different built forms. Differences in vegetation among patch types were related in part to environmental variables such as soil moisture and light availability. The urban vegetation was dominated by species from rocky habitats such as cliffs and talus slopes, with lesser representation from grassland and floodplain habitats. When compared to a null model of species origins based on the global area and species richness of different original habitats, species from rock outcrops and grassland habitats were overrepresented in the urban vegetation. These results contrast with the received view that cities represented highly “unnatural” ecosystems: built form appears to replicate the habitat templates required by rock outcrop species. Urban ecological theory should incorporate the replication of habitat analogs by built forms in addition to the creation of ecologically novel habitats.     

不同的电力交易模式对电力市场均衡的影响分析

本文采用经济学理论中的局部均衡分析方法,对目前电力市场交易中普遍采用的电力库与双边交易下可能形成的电力市场均衡,包括均衡价格与均衡数量形成进行了比较分析。得出的初步结论:一是电力交易模式的设计对电力市场结构的形成有直接影响;二是均衡电价的形成受到垄断势力影响,并向有利于垄断势力强的一方变动;三是相对于双边交易而言,电力库下的市场垄断势力更强。