c-补空间及其性质初探

本文首先给出了c-集的概念，然后在有限补拓扑空间及可数补拓扑空间的基础上引入了c-补拓扑空间的概念并对其性质进行了初步探讨。给出了三条引理，证明了一条预备定理与十一条定理。     

汉语旅游语篇中的文化信息传递及翻译

语篇翻译已成为国内外众多学者关注的重要课题之一。通过多年研究。他们已取得了令人瞩目的成果，为此领域的进一步探索予以铺垫。但是目前国内针对旅游语篇文化层面翻译研究不够深入。本文试图从语篇人手，结合大量实例对汉语旅游语篇及其英译文进行对比分析，认为旅游语篇翻译不仅是两种文字的简单转换，更是一种跨文化交际行为，其中文化信息的理解与处理值得引起大家注意。笔者就如何有效地传递旅游语篇中的文化信息，提出儿种翻译方法：1．释义法；2．增补法；3．删减法；4．改译法；5．类比法。     

论教研期刊的审稿原则与实施

优秀的教研期刊应具备学术性、导向性、实用性和可读性。编辑在审稿过程中必须要坚持学术性原则、导向性原则、实用性原则和可读性原则，并且在实施过程中注重选题的新颖、内容的创新、格式的规范。从而保证刊物的质量。使其获得良好的社会效益。     

复f-代数的性质研究

以实f-代数的理论作为基础，给出了半素和有单位元的复，代数的一些性质。证明了逆元存在的一个充分条件；并考察了在正规的条件下，复f-代数何时有乘法分解(M．D)性质和(*)性质。最后对复f-代数中的序理想和代数理想的关系进行了刻画。     

Development of the CAS-IBB single-particle microbeam for localized irradiation of living cells

A single-particle microbeam facility has been constructed at the Key Laboratory of Ion Beam Bioengineering (LIBB), Chinese Academy of Sciences (CAS). The system was designed to deliver a defined numbers of hydrogen ions, produced by a van de Graaff accelerator, in an energy range of 2.0-3.0 MeV, into an area smaller than that of the nucleus of an individual living cell. The beam is collimated by a borosilicate glass capillary that forms the beam-line exit. An integrated computer program recognizes the cells and locates them one by one over the microbeam exit for irradiation. We present technical details of the CAS-LIBB microbeam facility, particularly on the collimator, hardware, control program, as well as cell irradiation protocols available. Various factors contributing to the targeting and positioning precision are discussed along with accuracy measurement results.     

Experimental Study and Numerical Simulation of the Casting-Forging Complex Near Net Forming of Alternator Claw-pole

As a newly developed precision technology, casting-forging complex near net forming process is utilized to produce complex components with a short lead time, low cost and high precision, thus to accelerate the response speed of the market and enhance the competitive power of products. In this paper, the casting-forging complex near net forming process of alternator claw pole was developed and investigated with a combination of experimental and numerical simulation method. Qualified near net workpiece was manufactured, mechanical parameter and relative field information during the forming process was also obtained. While the alternator claw-pole is processed with this technology, the forming force is small, the process is short and the quality of forgings is perfect. Therefore, the complex casting-forging near net forming process of claw-pole is an energy and material saving technology, which will have a vast developing and application prospect in the future.     

P-RC APMP PULPING OF THE TRIPLOID OF POPULUS TOMENTOSA

The technology parameters of P-RC APMP process of the triploid of populus tomentosa and the the comparison of P-RC APMP with one and two stage f pretreatment were investigated in this paper. The results showed that in the chemical pretreatment the s that affected the pulp qualities. The charge of NaOH,y in the first stage of chemical pretreatment,was related to pulp strength. The charge of H2O2 tant pulp.In addition, the ratio of NaOH to H2O2 and the on of chemicals in the first and second stage of impregnation also affected the pulp qualities. The and two-stage P-RC APMP pulp illustrated that the ulp had better brightness and breaking length, lower light scatting coefficient and opacity.     

北京市野鸭湖湿地植物区系分析

通过野外调查对野鸭湖湿地的植物种类进行了统计 ,表明该区域内共有高等植物 35 7种 ,隶属 71科 2 13属 ,同时通过对野鸭湖植物区系的地理成分分析表明 ,野鸭湖地区植物属的分布区类型有 14个 ,分布具有广域性 ,且以温带成分为主 ,热带性质的属起补充成分的作用 .     

浅谈企业与电子商务

20世纪90年代,随着IT产业的迅猛发展,计算机网络在世界范围内急剧膨胀,在全世界掀起了新的一轮信息革命,全球经济进入网络经济时代,而电子商务更是以其独特的魅力影响并改变着企业的整体运作、经营管理模式。     

高校后勤社会化的管理体制难点解析

关于社会化高校后勤的财务管理,人们有诸多“完美”的设想,但在“社会化”改革的实践中却遇到了很多意想不到的难题。本文分析了难题的成因并提出了解决问题的对策。