化学类专业一流课程建设的思路与重点——以山东大学物理化学一流课程建设为例

First-class course construction is the foundation of first-class undergraduate education construction. Based on the understanding of the "Two properties and one degree" standard of first-class course, key characteristics of the first-class course construction are summarized as accurate positioning, clear teaching goals, good construction foundation, advanced pedagogy, first-class construction, remarkable effectiveness and preferential demonstration. Taking the construction of first-class physical chemistry course in Shandong University as an example, the course orientation, the determination of teaching objectives and the design and implementation of the teaching are introduced. The practice and experience of the course construction are demonstrated in five aspects as first-class foundation, first-class teachers, first-class resources, first-class pedagogical ideas and first-class achievements. It can be used as the reference for the future construction of first-class courses in other universities.     

电力工程地基处理技术的研究

在电力工程施工过程中,地基施工是一个十分重要的环节.本文对电力工程地基施工过程中常见的问题以及施工技术要点进行分析,旨在提高电力工程地基施工水平,为输电线路、变电站等基础设施建设提供稳定基础.     

国家级互联网骨干直联点建设方案分析

【】：国家级互联网骨干直联点(以下简称骨干直联点),作为国家重要通信枢纽,主要用于汇聚和疏通全国网间通信流量,是我国互联网网间互联架构的顶层关键环节。目前已在全国13个城市建成,开通网间互联带宽总量达2T。本文针对骨干直联点的特点及存在问题,分析增设骨干直联点对网络质量、流量均衡等方面的影响,提出了建设骨干直联点的方案,并对各种不同方案进行比较,为骨干直联点的实际建设提供指导。     

探讨建筑工程中的机电设备安装管理

近年来,随着我国社会主义市场经济逐步完善,各类建筑层出不穷,但施工现场却经常发生安全事故,由此可见,做好建筑工程中的机电设备安装管理工作尤为关键。机电设备的安装是否成功直接关系到机电设备的实际使用情况,因此只有对其进行深入的研究和分析,进行科学的安装管理,才能解决机电设备安装过程中存在的问题,从而逐步提高我国机电设备安装管理的整体水平和水平,提高机电设备的使用效率。     

GPS在长输管道阴极保护施工中的应用

近年来,油气田长输管道施工因征地、跨越农田地段和穿越等复杂多变环境,经常需要采用跳跃式施工,与之配套的阴极保护施工也必须采用跳跃式施工.采用传统测量方式,耗时、效力低、误差大.如采用GPS测量方式,既能达到精确快速配盘保证施工进度,又能减轻劳动强度、减少作业时间,降低施工成本,且形成的数字化资料对用户今后阴保巡线、抢修、维护和电位测试也都十分方便.     

广电接入网的混合组网模式

随着互联网的快速发展，国内广电运营商的网络已经难以支撑高速数据业务，向FTTH升级是多数运营商都已经达成的共识。但网络升级难以一步到位，这可能是一个长期的过程，在这个过程中将会出现多种接入网技术体系并存的情况，也就是混合组网，如何选择混合组网的技术体系是一个值得深入研讨的课题。     

滑坡灾害防治工程中施工组织设计对工程投资概算影响的研究

本文通过对具体地质灾害防治工程初步设计阶段的施工组织设计与工程投资概算之间关系分析, 指出施工组织对工程投资概算的影响不小于工程设计和地质勘查资料的影响, 施工组织设计对概算可靠度的提高有很重要的意义。     

A novel algorithm enumerating bent functions

Based on the relationship between the Walsh spectra of a Boolean function at partial points and the Walsh spectra of its subfunctions, and on the binary Möbius transform, a novel algorithm is developed, which can theoretically construct all bent functions. Practically we enumerate all bent functions in 6 variables. With the restriction on the algebraic normal form, the algorithm is also efficient in more variables case. For example, enumeration of all homogeneous bent functions of degree 3 in 8 variables can be done in one minute with a P4 1.7 GHz computer; the nonexistence of homogeneous bent functions in 10 variables of degree 4 is computationally proved.     

以太专线网络建设模式和选择策略研究

从以太专线网络建设模式及演进出发,结合PTN、PON、MPLSVPN等新技术的发展,探讨全业务运营环境下运营商开展大客户以太专线网络建设的新模式,通过新模式与传统MSTP、MSAP、PDH三种接入方式在可靠性、可管理性、可持续发展性及建设运行成本方面的分析,提出针对不同客户需求的选择策略建议,最后对我国当前以太专线网络建设需注意的问题给出简要结论。     

Calorimetric study of the native and postdenatured structures in starches with different degree of hydration

DSC studies of melting process of annealed native structures and postdenatured ones in low-amylose starches with different degrees of hydration were carried out. The starch recrystallization at different thermal treatments of the samples was studied both after the complete and partial destroy of native structures. It has been shown that native structures as well as postdenatured ones possess the ability to perfection, which is most clearly seen at the annealing at temperatures inside their melting ranges. The results obtained demonstrate that at the same duration of annealing the process of crystal perfection for secondary starch structures proceed more intensively compared to the native ones. The presence of the remained native structures in partial melt in contrast to the remained gel ones restricts the ability of the recrystallized structures to perfection.