论制宪权的主体

制宪权主体是制宪权的构成要素之一,分为制宪权的享有主体与制宪权的行使主体。基于人民主权理论,制宪权的享有主体应是人民．人民作为制宪权的享有主体具有重要的宪政价值。人民间接行使制宪权,制宪权的具体行使者是制宪机关．制宪机关行使制宪权要考虑社会现实需要、本国国情和历史传统、其他阶层利益和意志、民众的普遍接受程度等相关因素。我国的制宪权享有主体是人民,全国人民代表大会是制宪权的具体行使机关。     

Syntheses and Crystal Structures of Two Coordination Polymers with Aromatic Dioxide as Bridge Ligands

Two coordination polymers, namely, two-dimensional complex 1 {[Cu(μ- L)1.5(ClO4)2(H2O)].(H2O)0.5}n (L = pyrazine-1,4-dioxide) and one-dimensional complex 2 [Co(μ-L)Br2(H2O)2]n, have been synthesized with pyrazine-1,4-dioxide as bridging ligands, and their crystal structures were determined by X-ray crystallography. Crystal data for complex 1: monoclinic system, space group C2/c, with a = 23.310(3), b = 12.2338(17), c = 10.6075(15) , β = 110.487(2)°, V = 2833.6(7) 3, Z = 8, C6H9Cl2CuN3O12.5, Mr = 457.60, Dc = 2.145 g/cm3, F(000) = 1832 and μ = 1.998 mm-1; and those for 2: monoclinic system, space group C2/c, with a = 11.012(3), b = 7.483(2), c = 11.451(3) , β = 101.654(4)°, V = 924.2(4) 3, Z = 4, C4H8Br2CoN2O4, Mr = 366.87, Dc = 2.637 g/cm3, F(000) = 700 and μ = 10.487 mm-1. 1 shows a two-dimensional sheet structure on the ac plane through the coordination of μ-L bridging ligands with Cu(II) ions, while 2 displays a zigzag one-dimensional chain along the c axis via the coordination of μ-L bridging ligand with Co(II) ions. Hydrogen bonds in 1 and 2 make the sheets (or chains) connect each other to form a three-dimensional structure.     

Optical system and lens design for Blu-ray disc optical pick-up

During the design process of Blu-ray disc optical pick-up (BD OPU), the optical system and the collimator lens design is especially important. This paper designs an optical system and some lenses for the BD OPU, including collimator lens, beam shaping lens for laser beam shaping, and cylinder lens for signal detecting. In this OPU, we use a triplet lens to collimate the laser beam. At the same time, we build a series of assembly jigs to make sure that each lens can be put into the OPU basement properly. At last, we get the reading spot image and S-curve photo of OPU, which can be used to read Blu-ray disc (BD).     

搅拌器的类型及其应用

介绍各类搅拌器的结构、性能特点及它们的应用场合，为搅拌器的选型提供参考     

CAD／CAM在机械制造业中的应用

分析CAD／CAM技术在机械制造业的应用的迫切性及应用后明显的优越性。     

高校图书馆期刊补缺工作的对策

在高校教学科研中、期刊以其出版周期短、时效性强等特点,备受师生的重视和厚爱,但由于种种原因,图书馆收藏的期刊中,都不同程度地存在着缺期少卷或损坏现象,影响了期刊的利用效益,本文就期刊的补缺工作现状及对策进行了论述。     

职高学生的非健康心理与德育工作浅析

本文分析了职高学生非健康心理现状及探讨了针对性地开展德育工作的对策。     

浅谈如何上好初三英语复习课

怎样上好复习课，如何提高初三英语复习课课堂效果，主要采取深入钻研教材、抓住基础知识、做到讲练结合、讲究科学方法、适当增加练习量等方式来达到。     

二年制高职数控专业教学改革的探索与思考

二年制高职数控专业技能型紧缺人才的培养，应实施全新的人才培养方案和教学模式，突出高职教育以就业为导向、以能力为本位的特征，建立以实用知识和实践技能培养为主线的课程体系，实行学历教育与证书培训相结合，形成高技能人才的培养特色。     

高校改革与发展主题论

为贯彻实施科教兴国战略方针，吉林省把“科教兴省”确定为跨世纪发展战略。因此，高校的改革 与发必须以服务科教兴省为宗旨，加强基础理论研究，以科研成果的重大突破拉动地方产业结构的全新构筑；注重创新人才培养，以定向定量的复合人才促动地方产业的快速升级；加快科技成果转化，以创新知识的开发应用促进地方科技产业的效益倍增。