TEMPORAL AND SPATIAL DISCRETIZATION ON QUASI-3-D GROUNDWATER FINITE ELEMENT MODELLING TO AVOID SPURIOUS OSCILLATION

In this article, the finite element solution of quasi-three-dimensional (quasi-3-D) groundwater flow was mathematically analyzed. The research shows that the spurious oscillation solution to the Finite Element Model (FEM) is the results choosing the small time step ?t or the large element size L and using the non-diagonal storage matrix. The mechanism for this phenomenon is explained by the negative weighting factor of implicit part in the discretized equations. To avoid spurious oscillation solution, the criteria on the selection of ?t and L for quasi-3-D groundwater flow simulations were identified. An application example of quasi-3-D groundwater flow simulation was presented to verify the criteria. The results indicate that temporal discretization scale has significant impact on the spurious oscillations in the finite-element solutions, and the spurious oscillations can be avoided in solving practical quasi-3-D groundwater flow problems if the criteria are satisfied.     

光纤感温火灾预警监测系统的设计与应用分析

阐述光纤感温预警监测系统的工作原理、系统设计及应用研究方面的概况及意义,探讨光纤感温火灾预警监测系统的设计与应用.     

水利工程项目综合优化方法

进度、成本和质量称为建筑施工项目的三大控制目标。文章探讨了对三大控制目标进行综合优化的理论与方法,并结合某小型水电站溢洪道工程项目实例进行了验算。结果表明,应用综合优化模型,可以方便地对工程项目的进度、成本和质量控制目标做出优化决策。     

天生桥一级水电站施工总布置研究

天生桥一级水电站采用合同管理方式建设，主体工程划分为四个土建及金属结构安装合同和一个厂房永久机电设备安装工程合同，为满足合同管理的要求，进行了场内外交通运输设计、施工场地划分、公用施工临时设施和专用施工临时设施的划分、土石方平衡规划等设计工作，潢足了工程建设的需要     

低扬程大流量泵站单机流量测量

对传统流量测量方法进行了综述，提出了采用内贴式超声波7510系列便携式流量计对低扬程大流量泵站单机流量进行测量是十分有效的。对内贴式超声波7510系列便携式流量计的测量原理、性能和安装方法进行了阐述，并结合南水北调东线江都第二抽水站进行了流量测量，对其测量结果进行了误差分析。     

“标杆示范法”在企业思想政治工作中的应用探索

标杆示范法,是对集体及个人的经验、好的做法进行梳理,在梳理的同时归纳成一系列比较高的标准作为标杆,然后通过多种途径、利用各种有效手段进行示范、推广和学习,使这种高标准由某一个点渗透到更多的面,最终带动整个组织提高管理水平。对＂标杆示范法＂在国有企业的党支部建设、班组建设、员工队伍建设等思想政治工作领域的应用,形成有效的定标、对标、践标、标准化工作的思想政治工作流程进行探索和阐述。     

HULL GESTURE AND RESISTANCE PREDICTION OF HIGH-SPEED VESSELS

Since trim and sinkage are significant while vessels are advancing forward with high speed, the predicted vessel resistance based on restrained model theory or experiment may not be real resistance of vessels during voyage. It is necessary to take the influence of hull gesture into account for oredicting the resistance of high-speed ship. In the present work the resistance problem of high speed ship is treated with the viscous flow theory, and the dynamic mesh technique is adopted to coincide with variation of hull gesture of high speed vessel on voyage. The simulation of the models of S60 ship and a trimaran moving in towing tank with high speed are conducted by using the above theory and technique. The corresponding numerical results are in good agreement with the experimental data. It indicates that the resistance prediction for high speed vessels should take hull gesture into consideration and the dynamic mesh method proposed here is effective in calculating the resistance of high speed vessels.     

现代传媒视阈下领导干部互联网能力建设

领导干部的互联网能力包括领导者个人的互联网观念、网络应用能力和网络引导能力。从整体上看,当前领导干部的互联网能力和素养还不适应网络时代做好工作的要求。加强领导干部互联网能力建设,必须从转变观念入手,加强包括网络办公环境和个人网络应用为内容的网络环境建设,以用为本,培训和自学相结合。     

中国邮政储蓄银行中间业务特色化发展战略的设想——以安徽分行为例

自成立之日起,中国邮政储蓄银行依托强大的邮政网络,励精图治,其中间业务迅速发展,呈现出品种丰富、效用增强、规模扩大的趋势。该行在中国作为＂草根银行＂,的确为区域经济的发展做出了应有的贡献,但和金融同业相比,其中间业务发展仍凸显产品研发滞后、业务收益不高、操作风险尚存等问题。本文以邮政储蓄银行安徽分行为例,结合其中间业务发展现状的分析,对邮政储蓄银行特色化发展战略进行设想,提出要通过审时度势、东学西渐、内外联动和左右开弓的系列措施助力其中间业务发展。     

《艺概·诗概》理路、使命及得失谈

从清诗及清代社会思潮的大背景考察《艺概.诗概》的使命,从中国文化的深厚背景找寻刘熙载诗评的理路,从清儒与宋儒的关系考察刘熙载之所失,是捕捉《艺概.诗概》目的的基本手法。