数学问题链教学的内涵与特征

问题链教学是对问题式学习的聚焦式深化,也是对问题式学习的内涵式拓展。数学问题链教学具体包括以下内涵:问题链是由主干问题组成的;问题链是有序的;问题链的预设是多重的(弹性的);预设的问题是在师生交互下呈现的;问题链教学倡导利用主干问题及其关系驱动学生冷静思考、充分表达,体现思维脉络。数学问题链教学表现出目标指向的综合性与高阶性、问题设置的真实性与适切性、问题使用的灵活性与深刻性、学习评价的伴随性等基本特征。     

基于可拓学的城镇生态规划方法研究

城市生态规划存在大量复杂的矛盾问题,可利用可拓学解决矛盾问题的理论方法,使城市生态规划问题得到解决。本文以城市生态规划问题为导向．按照提出问题、发现问题、分析问题和解决问题的方式,对其应用方法进行论述,初步形成基于可拓学的城市生态规划方法体系．即问题界定、问题分析、问题变换和问题求解方法,这为解决城市生态规划问题提供了新的途径和方法．有利于城市生态规划过程更加形式化、清晰化表达,为计算机智能化解决城市生态规划矛盾问题奠定一定基础。     

景观基础设施在旧城自然系统及其建筑的修复应用研究

本文首先分析旧城内部环境问题,主要包括河流水源问题,旧城气候问题,以及旧城内部公共绿色空间问题。旧城内部自然系统中问题主要以这三方面的问题为主。自然河流问题主要是污染和河道硬化,气候问题包括大气污染和城市热岛效应等,公共绿色空间主要针对旧城内部预留的绿地空间不足以及土壤污染问题,同时以旧城建筑拥挤和破旧问题展开讨论。其次具体分析以上问题,并采用景观基础设施理念缓解上述问题。最后引用一些针对这些问题的案例,进行适当的分析和解读。     

现场施工工程管理问题和对策研究

现场施工管理是保证工程质量的关键所在,本文探讨了现场施工管理所存在的主要问题,包括技术问题、材料管理问题、工程组织问题、工程质量问题、施工安全问题和人员管理问题,并针对这些问题提出相应的改革建议。     

门窗设计加工过程中几个问题探讨

本文主要探讨排水孔问题、密封胶条安装部位设计问题、合页安装问题、铰链安装问题、毛条问题、推拉窗带下亮的设计问题.     

论述地下室结构设计存在的问题

地下室结构的设计也比较复杂,其中所涉及的技术问题繁多,主要有:地基承载力及变形问题、抗浮问题、不均匀沉降问题、结构超长问题、基础形式的选取和计算方法问题、人防设计等等。本文对地下室结构设计中的技术问题为主线,辅以一定的经济分析比较,简要分析地下室结构设计中的技术经济问题及其相互关系。     

望闻问切与城乡建设

科学发展,是理想,也是目标,同时也是一个过程。改革开放以来,特别是近一二十年,我们的城市建设迅猛发展,但与之相伴的是各类问题也层出迭现：垃圾围城问题、污水处理问题、城乡未能统筹发展问题、交通拥堵问题、楼宇采光问题、道路挖沟问题、天然气荒、液化气紧缺问题,     

“问题式”:物理实验教学新模式

"问题式"教学,是指教师运用问题组织教学,学生围绕问题开展学习——课堂从问题出发,到产生更高一级的问题,并随着问题的不断解决而逐渐深化。"问题式"课堂上,具体包括预设和生成问题、探讨和解决问题、总结和深化问题三个环节。     

实行水处理行业节能减排的必要性

当今世界面临诸多共同的问题,如人口问题、资源问题、环境问题和水问题等,资源问题又以能源为主要问题,经济的发展、社会的发展离不开能源的发展,需要能源提供动力。我国是能源相对缺乏的国家,随着经济建设的快速发展,能源短缺将成为制约我国社会经济发展的重要问题。     

“中国近现代史纲要”课开展问题教学的思考

"纲要"课教学应树立"问题引领教学"的理念,强化问题意识,突出问题中心,构建问题逻辑,建立问题教学体系。以问题为核心设计教学的各个环节,以问题为纽带串联教学各部分内容,以问题为载体贯穿教学过程的始终。通过创设问题情境激发学习兴趣,设置问题悬疑激活学生思维,探索师生良性互动、充满思辨色彩的"纲要"课堂教学新模式。     

The economical and international dimensions of the environmental problems,environmental problems in the Black Sea region and the role of the voluntary organizations

Differently than in the past, today environmental problems have local, national and international concern. The environmental problems in the Black Sea region are a good example for this phenomenon. These problems have affected all six countries that have shores with the Black Sea. The current study analyses these problems in detail. It intends to detect potential reasons for problems and provide suggestions to solve these problems by considering the economic dimensions. In addition, the impact of problems on the city life is examined. Also, the roles and importance of voluntary organizations on solving environmental problems are emphasized.     

非齐次特征值的盖尔圆盘放大与缩小的方法

物理、力学和工程技术中的很多问题在数学上都归结为求矩阵的特征值问题,但非齐次特征值问题在实际中也有着广泛的应用,讨论了如何将非齐次特征值问题转化为齐次特征值问题,进而探讨了利用盖尔圆盘的放大缩小方法实现对非齐次特征值的估计.     

From Private Nuisance to Criminal Behaviour: Neighbour Problems and Neighbourhood Context in an Australian City

The problems that arise between neighbours have not received the academic scrutiny they deserve despite neighbour problems and disputes appearing to be a growing phenomenon. In this paper, we begin to address this omission by examining the kinds of problems residents in the city of Brisbane, Australia, are likely to encounter with neighbours and identifying patterns in their distribution on the basis of neighbourhood characteristics. Making a distinction between private nuisance problems on the one hand and antisocial and criminal behaviour on the other hand, we observe how neighbourhood levels of concentrated disadvantage, residential mobility and population density all increase the chances of residents encountering a combination of nuisance and antisocial or criminal neighbour problems over nuisance problems only or no problems at all. Conversely, a higher concentration of foreign-born residents is found to be associated with residents being more likely to experience nuisance or no problems over more criminal and antisocial forms.     

探讨灌注桩常见的施工质量问题

主要分析了灌注桩各个施工环节中容易出现的施工质量问题及其产生问题的原因,以便施工人员在施工中引起注意,或出现问题时能有针对性的采取措施,解决质量问题,减少损失。     

从《后汽车时代的城市》到对城市问题的反思

以《后汽车时代的城市》为线索,对反城市化的“人文关怀”所表现出的对城市问题的逃避与以“乌托邦”方式解决城市问题进行了反思,从而更好地解决城市发展问题,促进城市的健康发展。     

探讨我国园林施工技术难点解决措施

在园林技术不断发展的前提下,出现了许多难以处理的问题。如何有效解决这些问题,一直是园林施工技术中常需要思考的,本文简要说明了园林施工技术中存在的问题,并就这些问题提出了解决方案。     

Bringing planning back into the picture – How can supply chain planning aid in dealing with supply chain-related problems in construction?

There are several supply chain-related problems facing the construction industry, such as poor construction site logistics, lack of communication and trust. These problems can jeopardize construction projects through delays and cost overruns. Supply chain planning, a part of supply chain management (SCM), can be used as a tool to deal with these problems. The purpose of this paper is to study how linkages between common supply chain-related problems in construction can be illustrated and to demonstrate how they could be resolved through supply chain planning. Firstly, we identify how the linkages between common problems can be illustrated, and secondly the role of supply chain planning in resolving these problems. A conceptual model is developed that was verified using three cases with Swedish gypsum and kitchen supply chains. The model is shown to be useful in illustrating how supply chain problems occurring at executional level on-site are related to problems originating in lack of planning at company/pre-construction level. The study thus demonstrates how supply chain planning can aid in resolving supply chain problems. The paper contributes by bringing planning back into the picture and by showing how supply chain planning can help to adopt SCM in construction.     

芬兰钢结构住宅中的一些特殊技术问题

在芬兰,钢结构住宅因其各种优越性应用比较广泛。但是随着人们对居住要求的提高,钢结构住宅中的一些特殊技术问 题,如隔热、耐久性、隔声、抗火等问题逐渐成为钢结构住宅中受到关注的焦点,也是实现住宅产业化必须要解决的问题。 本文介绍了芬兰钢结构住宅建设中遇到的一些技术问题以及对这些问题的解决方法,可供有关研究人员参考。     

The optimization of architectural shape based on Genetic Algorithm

Genetic Algorithm (GA) is widely adopted in optimization and the improvement of its optimization performance is attracting many researchers’ attentions. In solving practical problems in the process of architectural design, the ways of converting design problems into mathematical models that can be addressed by GA are of great significance in achieving final optimal results. However, no such rule that can be applied to such conversion has been developed so far. In general, problems which can be addressed by GA can be divided into combinatorial problems and numerical problems. In this paper, by means of attempting to disintegrate a complicated architectural problem into combinatorial and numerical problems, the author discusses feasibility and practicality of solving these two types of problems simultaneously utilizing GA and discloses both advantages and disadvantages of GA by comparing with other algorithms.     

房屋建筑施工成本管理优化措施分析

对房屋建筑施工成本管理中存在的预算人员不了解工程情况问题、招标问题、材料利用问题、施工人员管理问题进行了分析,提出了勒令预算人员进行实地考察、加强合同管理、材料管理等措施,以期降低建筑工程施工企业的成本费用,促进企业的发展。