抗震加固原理与方法

从运动微分方程入手，阐述了抗震加固的原理和新方法，以及砌体结构和框架结构抗震加固中常用加固方法的技术细节，供设计人员参考。     

辽宁乡镇企业产权制度改革中的问题与对策

本文认为 ,目前辽宁省乡镇企业产权制度改革中存在以下问题 :一是乡镇企业改制偏重出售一种形式 ;二是转制中集体资产的流失 ;三是对股份制和股份合作制的认识偏差 ;四是产权制度改革中的急于求成。针对以上问题 ,提出了目前辽宁省乡镇企业转制应采取的主要对策     

Determinants and nature of dietary underreporting in a free-living population: the Fleurbaix Laventie Ville Santé (FLVS) Study

OBJECTIVE: To study the determinants and nature of dietary underreporting in a free-living population. DESIGN: Cross-sectional study of nutritional and behavioural characteristics. SUBJECTS: 1030 weight-stable subjects, 501 women and 529 men older than 15 y, included in the Fleurbaix Laventie Ville Santé study. MEASUREMENTS: Dietary intake was assessed using a 3 dy dietary record. Self assessed body weight and height were also recorded. Behavioural and socio-economic data were obtained from a questionnaire. Underreporters were defined as people with a reported ratio of energy intake to estimated basal metabolic rate lower than 1.05. RESULTS: Underreporting concerned 16% of the population and was significantly more frequent in obese than in non obese subjects (P < 0.001). Underreporting was significantly associated with a high socio-professional class (P < 0.05), having dieted at least once (P < 0.01) and to be in dietary restraint (P < 0.05). Furthermore, the contribution of protein to energy intake was significantly higher in underreporters than in non underreporters, independently of weight status. CONCLUSIONS: These data underline that underreporting may bias the assessment of energy and macronutrient intake, particularly in studies on obesity and dietary restraint. Questions about weight concern, dieting and dietary restraint may be useful to identify subjects who underestimate their food intake.     

Risk-based rules for crane safety systems

The International Maritime Organisation (IMO) has recommended a method called formal safety assessment (FSA) for future development of rules and regulations. The FSA method has been applied in a pilot research project for development of risk-based rules and functional requirements for systems and components for offshore crane systems. This paper reports some developments in the project. A method for estimating target reliability for the risk-control options (safety functions) by means of the cost/benefit decision criterion has been developed in the project and is presented in this paper. Finally, a structure for risk-based rules is proposed and presented.     

辛酰丙氨酸镁（Ⅱ）、钙（Ⅱ）及锌（Ⅱ）配合物的溶解性及其聚集行为

采用镁、钙和锌的氢氧化合物分别与辛酰丙氨酸配体[CH3(CH2)6CONHCH(CH3)COOH]反应,合成了辛酰丙氨酸镁、钙和锌表面活性剂配合物。通过配合物的纯溶媒及水/有机溶媒系的溶解性测试发现,镁和钙的配合物均在大部分有机纯溶媒和水/有机溶媒系里有极高的溶解性,而锌的配合物在大部分有机纯溶媒系里有很低的溶解性。此外,通过核磁共振(NMR)光谱、电导、蒸汽压降下(VPO)和FTIR方法研究了溶液中镁、钙和锌表面活性剂配合物的聚集行为。Mg(oct-ala)2、Ca(oct-ala)2和Zn(oct-ala)2配合物在有机溶媒系里吸附水易发生聚集行为,并有形成逆胶束体的倾向。     

基于波动特性挖掘的短期光伏功率预测

综合考虑光伏功率受气象因素影响所呈现出的规律性和波动性,对光伏功率波动类型进行划分与聚类识别提出一种基于波动特性挖掘的短期光伏功率预测方法,。在此基础上,利用数值天气预报和基于互信息熵的相关性分析法提取各类功率波动对应的天气波动特征及其强相关气象因子,建立基于波动特性挖掘的长短期记忆网络组合预测模型,挖掘天气波动与光伏功率波动之间的潜在映射规律。最后,识别出待测日天气波动类型与预测模型之间的匹配关系,利用组合预测模型实现光伏功率预测。通过对中国西北地区某光伏电站的预测分析,验证了所提预测方法的有效性。     

The law of exercise applies on individual behavior change development

This paper claims how the behavior pattern changing during personal behavior development in Thorndike＇s theory comparing with how species survive in evolution theory. The standing point of this paper is the law of exercise should be applied on individual behavior development. It means the Thorndike＇s law is useful in personal behavior-changing as the Neo-Lamarckism＇ theory in evolution aspect. Hereditary substance is fundamental for physical existence but not for behavior change. However, the factors control genes＇ perform process is an essential thing in behavior. In advance, there existing two methodology of how individual changing their behaviors during their own development. One is biological advance through exercise strengthening, another is environmental and surroundings influence. Comparing with animals, human was influenced by surroundings most because human has tendency to approach to collectivlism.     

Supramolecular Assemblies Constructed by Cucurbituril-Catalyzed Click Reaction

Cucurbituril homologues are multi-functional macrocycles that can find applications in many areas and have numerous interesting features setting them apart from the other macrocycles. Among them, the ability of one of the cucurbituril homologues, cucurbit[6]uril (CB6), to catalyze 1,3-dipolar cycloaddition in a regiospecific fashion is truly exceptional. Using this feature, small molecules can be clicked together to form complex structures in a very efficient way. Accordingly, in this article we review recent research involving the use of CB6-catalyzed 1,3-dipolar cycloaddition or the click reaction of CB6 in the construction of supramolecular assemblies including rotaxanes, pseudorotaxanes, polyrotaxanes, polypseudorotaxanes, molecular switches, machines, and nanovalves.