关于水利工程投资问题探析

在我国的基础设施建设中,水利工程建设是一个重点。自改革开放以来,我国水利工程的建设获得了很大的发展,但是这种耗资巨大的工程建设也引发了一些问题,其中最突出的问题就是水利工程的投资问题。本文分析了我国水利工程投资的现状,并就如何规范水利工程投资控制与管理提出了几点对策。     

初探建筑工程造价动态管理与控制

由于近年来我国城市的快速发展,越来越多的建设项目已经成为我国城市发展的重要标志。建设工程的造价管理决定了建筑企业运输建设资源的能力,做好工程造价管理,不仅有利于提高资源利用效率,而且有助于提高企业控制项目成本的能力。工程造价控制是其中的重要内容之一,但往往由于一些干扰因素,使工程的造价管理工作与现代化工程建设无法实现统一。为了提升在建筑企业的经济效益,因此在进行工程项目的施工开展过程中,需要对造价进行动态管理,以此来对企业的经济效益进行保障。     

探讨建筑工程施工管理中的造价控制

随着我国社会经济的快速发展,建筑工程建设项目逐渐增加,我国的建筑事业进入高速发展时期。特别是近年来,我国城市化建设进程不断加快,在改变人们生活方式的同时,也转变了我国建筑行业的发展模式。工程造价控制在建筑工程管理中占据核心位置,只有合理控制建筑工程的造价,才可能实现社会经济效益的最大化。本文从建筑工程施工管理的造价控制入手,分析造价控制在建筑工程施工管理中的重要意义,并就如何完善建筑工程施工管理中的造价控制进行探讨。     

新形势下水利工程项目管理的提升途径

水利工程项目作为一个复杂的系统工程,它在水利工程的建设中发挥着重要的作用,也关系着我国的国计民生和社会建设。分析了现阶段我国水利工程项目管理中所存在的一些问题,并提出了几项加强水利工程项目管理的措施,旨在提高新形势下的水利工程项目管理工作,促进水利工程项目质量的不断提升。     

浅谈建筑工程各阶段工程造价的有效管理与控制

建筑工程的造价管理与控制是建筑工程管理中非常重要的一环,其能够有效的控制建筑工程在各阶段的造价成本。现阶段我国经济发展的速度从高速转为中高速,越来越注重发展的质量,这就需要结合发展供给侧结构性改革,抓好各领域的产业结构转型。供给侧结构性改革反映到建筑工程企业层面,就需要其在合理控制造价成本的基础上进一步高品质的完成建筑工程建设。本文以工程造价管理与控制的现状作为切入点,重点阐述了建筑工程在各阶段如何有效管理与控制工程造价。     

电力工程造价管理在施工阶段中的控制

在社会经济稳定发展的背景下,科学技术水平不断提高,并且运用到各个领域,使得电力工程建设高速发展,而且电力工程规模不断增大,但原材料价格的上涨对电力项目造价控制产生一定的影响。其中,电力工程施工阶段作为造价管理的重要阶段,项目的绝大部分投资都会在此环节消耗,为全面保证电力工程造价管理的效果,则应该针对施工阶段造价管理现存问题进行分析,并制定针对性造价管理对策。基于此,本文简要阐述了电力工程施工阶段造价管理的意义及必要性,笔者根据自身经验阐述了相关建议,仅供参考。     

建筑工程造价特点及动态控制实施方法研究

在新的发展形势下,建设工程造价的动态控制具有多方面的影响因素和广泛的特点。因此,本文从项目成本管理动态管理的需求出发,介绍了项目成本管理的含义,分析了项目成本管理的特点,解释了项目成本管理现象。建设项目的动态成本管理。并将 BIM5D 技术作为创新应用于建筑工程造价动态控制,进一步探索建筑工程动态造价控制的实施和优化,为工程造价动态控制提供有效参考。     

试论中小型水利工程施工质量控制方法

水利工程无论是在我国的历史上还是在当今的社会里,都有着至关重要的作用,占据着重要的地位。我国的水利工程建设已经取得了迅猛发展,在我国水利工程中,中小型水利工程占据了很大部分,水利工程关系到国家和民生。因此,要对中小型水利工程加强管理,做好施工质量控制,使国家和人民的利益都得到保证。     

水利工程管理体制模式的研究

水利工程设施的正常运行需要一个良好的水利工程管理体制,但目前我国水利工程管理上还存在一些问题。为了充分发挥水利工程的效益,使它能够造福更多的人类,更好地实现水资源的可持续循环利用,就需要对水利工程管理体制进行探讨。     

电网造价管理改进措施浅析

根据研究当前国内电力工程造价的特点和电网建设工程全过程造价控制现状，分析并提出电网建设全过程造价管理的控制措施，提高电网建设的投资效益性。     

Only connect: teaching, technology and telesis

Abstract This paper describes an approach to the design of interactive multimedia materials being developed in a European Community project. The developmental process is seen as a dialogue between technologists and teachers. This dialogue is often problematic because of the differences in training, experience and culture between them. Conditions needed for fruitful dialogue are described and the generic model for learning design used in the project is explained.     

European Community policy and the market

Abstract This paper starts with some reflections on the policy considerations and priorities which are shaping European Commission (EC) research programmes. Then it attempts to position the current projects which seek to capitalise on information and communications technologies for learning in relation to these priorities and the apparent realities of the marketplace. It concludes that while there are grounds to be optimistic about the contribution EC programmes can make to the efficiency and standard of education and training, they are still too technology driven.     

一种自适应子融合集成多分类器方法

融合集成方法已经广泛应用在模式识别领域,然而一些基分类器实时性能稳定性较差,导致多分类器融合性能差,针对上述问题本文提出了一种新的基于多分类器的子融合集成分类器系统。该方法考虑在度量层融合层次之上通过对各类基多分类器进行动态选择,票数最多的类别作为融合系统中对特征向量识别的类别,构成一种新的自适应子融合集成分类器方法。实验表明,该方法比传统的分类器以及分类融合方法识别准确率明显更高,具有更好的鲁棒性。     

Avoiding semantic and temporal gaps in developing software intensive systems

Development of software intensive systems (systems) in practice involves a series of self-contained phases for the lifecycle of a system. Semantic and temporal gaps, which occur among phases and among developer disciplines within and across phases, hinder the ongoing development of a system because of the interdependencies among phases and among disciplines. Such gaps are magnified among systems that are developed at different times by different development teams, which may limit reuse of artifacts of systems development and interoperability among the systems. This article discusses such gaps and a systems development process for avoiding them.     

Designing economic np control charts: A programmed simulation approach

This paper presents control charts models and the necessary simulation software for the location of economic values of the control parameters. The simulation program is written in FORTRAN, requires only 10K of main storage, and can run on most mini and micro computers. Two models are presented - one describes the process when it is operating at full capacity and the other when the process is operating under capacity. The models allow the product quality to deteriorate to a further level before an existing out-of-control state is detected, and they can also be used in situations where no prior knowledge exists of the out-of-control causes and the resulting proportion defectives.     

The development of robot art

Going through a few examples of robot artists who are recognized worldwide, we try to analyze the deepest meaning of what is called “robot art” and the related art field definition. We also try to highlight its well-marked borders, such as kinetic sculptures, kinetic art, cyber art, and cyberpunk. A brief excursion into the importance of the context, the message, and its semiotics is also provided, case by case, together with a few hints on the history of this discipline in the light of an artistic perspective. Therefore, the aim of this article is to try to summarize the main characteristics that might classify robot art as a unique and innovative discipline, and to track down some of the principles by which a robotic artifact can or cannot be considered an art piece in terms of social, cultural, and strictly artistic interest. This work was presented in part at the 13th International Symposium on Artificial Life and Robotics, Oita, Japan, January 31–February 2, 2008     

Explanation and prediction: an architecture for default and abductive reasoning

Although there are many arguments that logic is an appropriate tool for artificial intelligence, there has been a perceived problem with the monotonicity of classical logic. This paper elaborates on the idea that reasoning should be viewed as theory formation where logic tells us the consequences of our assumptions. The two activities of predicting what is expected to be true and explaining observations are considered in a simple theory formation framework. Properties of each activity are discussed, along with a number of proposals as to what should be predicted or accepted as reasonable explanations. An architecture is proposed to combine explanation and prediction into one coherent framework. Algorithms used to implement the system as well as examples from a running implementation are given.     

Three Process Perspectives: Organizations, Teams, and People

This paper provides the author's personal views and perspectives on software process improvement. Starting with his first work on technology assessment in IBM over 20 years ago, Watts Humphrey describes the process improvement work he has been directly involved in. This includes the development of the early process assessment methods, the original design of the CMM, and the introduction of the Personal Software Process (PSP)^SM and Team Software Process (TSP){^SM}. In addition to describing the original motivation for this work, the author also reviews many of the problems he and his associates encountered and why they solved them the way they did. He also comments on the outstanding issues and likely directions for future work. Finally, this work has built on the experiences and contributions of many people. Mr. Humphrey only describes work that he was personally involved in and he names many of the key contributors. However, so many people have been involved in this work that a full list of the important participants would be impractical.     

基于复小波噪声方差显著修正的SAR图像去噪

提出了一种基于复小波域统计建模与噪声方差估计显著性修正相结合的合成孔径雷达(Synthetic Aperture Radar,SAR)图像斑点噪声滤波方法。该方法首先通过对数变换将乘性噪声模型转化为加性噪声模型,然后对变换后的图像进行双树复小波变换(Dualtree Complex Wavelet Transform,DCWT),并对复数小波系数的统计分布进行建模。在此先验分布的基础上,通过运用贝叶斯估计方法从含噪系数中恢复原始系数,达到滤除噪声的目的。实验结果表明该方法在去除噪声的同时保留了图像的细节信息,取得了很好的降噪效果。     

How do children do mathematics with LOGO?

Abstract  This paper considers some results of a study designed to investigate the kinds of mathematical activity undertaken by children (aged between 8 and 11) as they learned to program in LOGO. A model of learning modes is proposed, which attempts to describe the ways in which children used and acquired understanding of the programming/mathematical concepts involved. The remainder of the paper is concerned with discussing the validity and limitations of the model, and its implications for further research and curriculum development.