苏联专家对新中国城市规划工作的帮助——以西安市首轮总规的专家谈话记录为解析对象

以"一五"时期西安市首轮城市总体规划为例,通过对苏联专家谈话记录进行深入解析,再现了苏联专家对我国城市规划工作进行帮助的鲜活事实。苏联专家对我国城市规划工作的帮助,既有城市规划的基本依据和规划原则等指导思想的明确,也有城市规划的科学基础、标准定额、设计方法和成果规范等工作内容的指导,还有签订协议文件等制度建设方面的建议。苏联专家对规划工作的帮助是全面、系统而深入的,兼顾了理论和实践、远景和近期、苏联经验和中国实际等多方矛盾,体现了科学、严谨而务实的态度。在对建国初期城市规划事业创立和发展的认识方面,应对苏联专家的重要贡献予以客观评价。     

诺基亚中国总部的绿色建筑设计

论述了在诺基亚总部办公及科研开发中心设计过程中,如何采用绿色建筑的设计方法,综合考虑北京地区的气候条件,充分利用自然光和自然通风减少建筑运行中的日常能耗,以及如何以高效的技术手段创造出健康舒适的建筑人工微气候。     

苏锡常地区建筑节能检测工作研究现状

从苏锡常地区的气候特征出发,结合《建筑节能工程施工验收规范》等相关节能检测规范,对苏锡常地区建筑节能检测工作的研究现状进行了探讨。     

高转化率配方乳聚丁苯橡胶聚合过程中间产物性能考察

采用中国石油吉林石化公司乳聚丁苯橡胶高转化率大生产配方,考察了实验室聚合反应釜聚合反应单体转化率随反应时间的变化,测定了生胶的结合苯乙烯含量、有机酸和皂含量、门尼粘度等性质,结果表明：反应10 h,转化率为70%左右时生胶的各项性质均达到标准GB/T 8655—2006中规定的优等品指标要求;当反应12 h,转化率达到75%时,生胶的结合苯乙烯含量和门尼粘度不符合要求。     

Spatiotemporal symmetry and multifractal structure of head movements during dyadic conversation.

This study examined the influence of sex, social dominance, and context on motion-tracked head movements during dyadic conversations. Windowed cross-correlation analyses found high peak correlation between conversants’ head movements over short (≈2-s) intervals and a high degree of nonstationarity. Nonstationarity in head movements was found to be positively related to the number of men in a conversation. Surrogate data analysis offsetting the conversants’ time series by a large lag was unable to reject the null hypothesis that the observed high peak correlations were unrelated to short-term coordination between conversants. One way that high peak correlations could be observed when 2 time series are offset by a large time lag is for each time series to exhibit self-similarity over a range of scales. Multifractal analysis found small-scale fluctuations to be persistent, τ(q) 0.5. These results are consistent with a view that symmetry is formed between conversants over short intervals and that this symmetry is broken at longer, irregular intervals. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Local‐scale Benefits of River Connectivity Restoration Planning Beyond Jurisdictional Boundaries

Conservation planning aims to optimize outcomes for select species or ecosystems by directing resources toward high‐return sites. The possibility that local benefits might be increased by directing resources beyond the focal area is rarely considered. We present a case study of restoring river connectivity for migratory fish of the Great Lakes Basin by removing dams and road crossings within municipal jurisdictions versus their broader watersheds. We found that greater river connectivity could often be achieved by considering both intra‐jurisdictional and extra‐jurisdictional barriers. Focusing on jurisdictional barriers alone generally forfeited <20% (median = 0%) of habitat gains for those who value solely habitat gains within the jurisdiction, but >75% (median = 100%) for planners who value larger‐scale habitat gains. Similarly, cost savings tended to be between ?50% and +50%, but in some cases were very negative. Our study underscores the local‐scale benefits of broadening restoration investments, especially for decision makers of the Great Lakes Basin and contributes to a discussion of appropriate and efficient scales of conservation planning. Copyright © 2017 John Wiley & Sons, Ltd.     

略论军民融合型产业发展

我国的军民融合型产业,是以国防科技工业在经济技术方面的优势为核心和依托,通过军、民领域间的双向交流互动所形成的产业,是实现军民融合式发展的基础和重要途径。从军民融合型产业的地位作用出发,分析了我国发展军民融合型产业所取得的成绩及存在的问题,并从5个方面论述了军民融合型产业转变发展方式的基本路径。     

Robust H_∞ output feedback controller design for linear uncertain discrete-time switched systems via state reset

This paper studies the problem of robust H∞ output feedback controller via state-reset for linear uncertain discrete-time switched systems. Using multiple Lyapunov functions,we address an output feedback controller under arbitrary switching signals,in which an H∞ performance is required. The condition is shown in the form of linear matrix inequalities (LMI). Finally,a numerical example shows the feasibility of the designed controller and illustrates that the new sufficient condition has lower conservation and more optimized H∞ tfperformance.     

湿陷性黄土地基强夯有效加固深度预测

对强夯有效加固深度主要影响因素进行分析,考虑能量的转化,综合运用量纲守恒和最小二乘原理,结合一定量的湿陷性黄土地基强夯加固实例,推导了有效加固深度估算公式,并与其他公式进行比较;再结合另外两组湿陷性黄土地基实例,进一步探讨了本文公式的估算效果。新的公式反映了含水量与有效加固深度呈非线性相关,能使得计算效果更好,参数选用方便,对湿陷性黄土地基有一定参考价值。     

对《建筑节能工程施工质量验收规范》中建筑节能工程质量验收的理解与探讨

本文对《建筑节能工程施工质量验收规范》(GB50411-2007)中,建筑节能工程按分部工程实施工程质量验收问题进行了探讨,并结合工程质量监督工作实际,提出了建筑节能工程质量验收的新观点。