研究工程

It is important for achieving goal of construction contract management by reinforcing management and control of construction change.

论文在系统分析工程变更对建设项目的影响及其国内外研究现状的基础上，运用文献研究法及其现代数理统计分析技术对建设项目工程变更的分类及其控制系统进行了探索和研究。

All the ways such as VLAN, export router, IPv6, security policy, hardware firewall, anti virus software of net work-edition and management of information security are applied to the project to implement the optimization and revamps of campus network topology structure and the updating of the overall performance.

以青岛职业技术学院校园网二期改造工程为背景，根据国际化标准，研究了校园网设计原则，在分析了学院校园网一期工程性能缺陷和示范院校建设新需求的基础上，从功能扩展、网络安全及管理等各个方面进行了整体方案设计，详细研究了网络各层设计及设备选型，采用VLAN、出口路由处理、IPv6技术、安全策略、硬件防火墙、网络版防病毒软件以及各种信息安全管理等技术与手段，实现了校园网络拓扑结构的优化改造和整体性能的升级。

This thesis systematically studies some important subjects in theoretical and applicable aspects, on which the overflow cofferdam needs to solve at present during key water control project construction, such as diversion ways and the type of overflow cofferdam, diversion standard, and the bedding course of the downstream protection slop of concrete slab on overflow cofferdam. Moreover, according to the experiment of hydraulic construction model, the thesis studies the overflow cofferdam and diversion scheme for Qingjiang Shuibuya Hydropower Project.

本文从理论和应用两个方面系统研究了水利枢纽工程施工过水围堰在导流方式及围堰类型、导流标准及围堰下游砼护坡反滤层等方面需要解决的问题，并结合水工模型试验，对清江水布垭水电站工程过水围堰及度汛方案进行研究。

Bone tissue engineering and cartilage tissue engineering researches are hot spots of tissue engineering research.

骨组织工程研究是组织工程研究的热点。

In the aspect of experiment research: for engineering ceramics such as ZrO2^Si3N4experiments are carried out by a diamond face mill cutter. Cutting force and machined surface roughness are measured, they indicate:(1) Based on the experiments of scratching and ultra-precision face-milling, it is considered that micro-milling depth is the most important influence factor to realize brittle/plastic transition.

实验研究方面：以ZrO_2、Si_3N_4等工程陶瓷为研究对象，在加工中心上进行了切削力及表面形貌实测，实验结果表明：(1)由划痕实验和金刚石端铣刀超精密铣削实验，认为切削深度的微量化将是实现工程陶瓷材料脆塑性转换的重要条件，同时材料本身的特性也是不可忽视的因素。

At the same time, introduces systematically the history and current situation of displacement reverse analysis, describes the displacement reverse analysis theory of the elastic-plastic problem, and based on the actual project, this paper presents displacement reverse analysis in the application of the tunnel project.

同时，较为系统地介绍了位移反分析方法研究的历史与现状，叙述了弹塑性问题的位移反分析理论，并结合实际工程，研究了位移反分析在隧道工程中的应用。

According to that the middle long range develops a plan, will establish the heavy ion nuclear physics step by step rolling a cluster into a ball with hadron physics , atom and molecule physics , ion irradiation living things material, and the advanced ion accelerator wait for the distinct five characteristic countries laboratory (including that the ion beam administering cancer), resisting an irradiation with high-power electron accelerator; Be that China participates in the international antiproton and the ion studies the device Big Science project scientific and technological cooperation coordination unit; The significant country "the 9th Five-Year Plan" science project "Lanzhou heavy ion cooling being completed soon stores up the ring" general

按照中长期发展规划，将逐步建成重离子核物理与强子物理、原子与分子团簇物理、离子辐照生物、抗辐照材料、以及先进的离子加速器与大功率电子加速器等五个特色鲜明的国家实验室；是中国参与国际反质子与离子研究装置大科学工程科技合作的协调单位；即将竣工的国家&九五&重大科学工程&兰州重离子冷却储存环&将作为国家重要的公共研究平台对国内外开放。

With the application of latest engineering science as well as effective theory, technology, material and method in other fields of civil engineering to the study on design and construction technology for large-scale aqueducts, while combining the typical project to develop the theory analysis, model experiment and site experiment study, some scientific, economic and reasonable methods in design and construction have been given in the paper.

将现代工程科学最新的并在土木工程其它领域中行之有效的理论、技术、材料、方法应用于大型渡槽设计和施工技术的研究过程之中，同时结合典型工程开展理论分析、模型试验和现场原型试验研究，对当前设计和施工中提出的理论和技术问题给出了科学、经济、合理的解决方法。

Design of dampers for multi-degree-of-freedom systems and the effect of detuning of damper parameters are investigated.

目前对于TMD在地震工程中的应用研究远不如对于TMD在抗风工程中的应用研究充分。

BCBBs are designed for not only symmetric linear arrays but also asymmetric linear arrays, are arrays and circle arrays. The BCBBs designed are tested by LFM signals, and the results show that the BCBBs achieve good quality. The word length of the filter efficients are studied from the view of engineering implementation. It is shown that using 8 bits can satisfy the requirement. Multi-beam BCBBs with 2 degree beamwidth in two octave and 1/3 octave frequency band are designed and tested for a specified array.

设计好的宽带恒定束宽波束形成器用线性调频信号进行了检验，证明了其正确性；从工程实际的角度出发，研究了滤波器系数字长对系统性能的影响，研究表明采用8位的滤波器可以满足要求；结合实际课题，在深入分析阵形结构特征的基础上，分别设计了倍频程和1/3倍频程多波束宽带恒定束宽波束形成器，并通过线性调频信号进行了验证，为其工程实现打下了良好的基础。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！