Mixed-species Flocks Important for Biodiversity Conservation in Tropics

<正>Nowadays,landscapes are being increasingly transformed by anthropogenic activities.Early reports on mixed-species flocks suggested that flocking species are particularly vulnerable to anthropogenic disturbance.However,how and why the flocking phenomenon might influence birds'response to land-use intensity is still unclear.In a recent study jointly conducted by researchers from     

中国创业风险投资发展中的七大问题

本文针对中国创业风险投资业界研究和实践中的诸多混乱现象，进行了七个方面的重新厘定与梳理。这些重要问题包括创业风险投资概念、功能、模式、身份、资金来源和运用、创业金融、资产估值等，对中国未来创业风险投资发展提出了新的理论诠释。     

入世后地方科技立法应注意的几个问题

建立、健全与WTO规则和我国入世承诺相一致的法律体系是中国入时后立法的首要任务，而地方科技立法作为我国立法体系的重要组成，也必须适应入世的要求。本文从以下三个方面论述了地方科技立法适应入世要求应采取的举措：首先，拥有立法权的各级地方人大及政府要实现立法观念的入世；其次，要正确评估当前地方科技立法中不适应WTO规则的内容；第三，按WTO规则的要求，进一步完善地方科技立法。     

最新智能建筑技术在绿色建筑建设中的节能应用

本文介绍了智能建筑管理集成系统BMS以及各类最新智能集成技术的特点,包括KNX,BACNET,DALI等;同时分析了这些智能建筑技术在绿色建筑建设中的节能应用。     

Welfare improvement windows for innovation policy

The question this article addresses is, how far from its optimal level can an innovation policy be implemented at, yet still improve social welfare relative to the laissez-faire outcome? The concern for policymakers is that even an intervention which enhances welfare if set at its optimal magnitude might actually make matters worse if implemented to the wrong degree. Understanding the performance of suboptimal policy levels is practically important, since the complexity and uncertainty of innovation make optimal policy magnitudes elusive in the real world. The model developed herein to investigate this issue is an R&D rivalry game where firms invest in R&D, then engage in Cournot competition. A policymaker seeks to improve welfare by choosing the levels of an R&D subsidy and consumer price subsidy. Results show that the welfare improvement window, defined as the set of all policy levels that improve social welfare, can be worryingly narrow. However, certain features of an innovation process and market lead to wider welfare improvement windows, such as stronger spillovers and moderately costly R&D. Policymakers stand a better chance of improving social welfare by intervening where these features are present.     

煤矿棚户区改造住宅楼设计

首先介绍了项目概况,在说明设计标高前提下,阐述了墙体工程、屋面工程、门窗工程等主体工程的做法,进而说明了外装修工程、内装修工程、屋面排水、楼面和地面、防水材料、室外工程等设计,并提出了施工中注意事项。     

科学技术事关国家利益

今天我受徐冠华部长委托参加中国软科学研究会的学术年会。首先我代表科技部对会议的召开表示热烈的祝贺!中国软科学研究会自成立以来，为推进我国的决策科学化、民主化进程做出了积极贡献，为我国科技事业的发展做了大量卓有成效的工作。借此机会，我代表科技部向关心我国科技事业发展的各位领导、专家和同志们表示由衷的敬意和感谢。     

Technological Science Important for Developing an Innovative Country

Technological and principles of people attempt to by means of tech science deals with general mechanisms ＂artificial nature,＂ a process in which produce natural objects or processes nology. Based on natural science, it is a fundamental tenet offering common, core and key technologies for all engineering disciplines and industries. Closely following the development steps of our times, it increasingly shows practical significance, according to a recent report by the CAS Academic Divisions （CASAD）.     

浅议混凝土收缩裂缝产生的主要原因

本文深入细致地分析了引起混凝土产生裂缝的重要因素混凝土的收缩及收缩产生的原因，并提出了防止措施，为混凝土裂缝的控制提供技术理论支持。     

新型建筑材料的商业发展前景

本文以未确知数学的UM模型为基础,举例说明其在商场上的供应关系中的应用。