增量动力分析法在高层混合结构性能评估中的应用

增量动力分析法即对于一条特定的地震动输入,设定一系列单调递增的地震动强度;在每个地震动强度下进行结构的弹塑性时程分析,得到不同地震动强度与结构性能参数之间的关系;通过统计分析不同地震动下的结构性能参数与地震动强度之间的关系,来实现对结构性能的评估.增量动力分析法也可以看成是一种动力推覆分析法.详细介绍了增量动力分析法的计算内容和分析步骤,并将该方法运用于评估某高层混合结构的抗震性能.评估结果既可为高层混合结构基于性能抗震设计提供参考,也为增量动力分析在复杂高层结构中的应用提供基础.     

论系统哲学中几对范畴的辩证关系

讨论了系统哲学中有关范畴的辩证关系。     

有限元软件的友好用户界面设计

编制了有限元友好用户界面的程序，包括数据输入输出界面，图形输入模块，以及联机帮助模块；该程序体现了有限元软件用户界面的友好性．经验征，此程序使用方便，效果良好，具有一定的实用价值。     

Control of segment number in vertebrate embryos

The vertebrate body axis is subdivided into repeated segments, best exemplified by the vertebrae that derive from embryonic somites. The number of somites is precisely defined for any given species but varies widely from one species to another. To determine the mechanism controlling somite number, we have compared somitogenesis in zebrafish, chicken, mouse and corn snake embryos. Here we present evidence that in all of these species a similar 'clock-and-wavefront' mechanism operates to control somitogenesis; in all of them, somitogenesis is brought to an end through a process in which the presomitic mesoderm, having first increased in size, gradually shrinks until it is exhausted, terminating somite formation. In snake embryos, however, the segmentation clock rate is much faster relative to developmental rate than in other amniotes, leading to a greatly increased number of smaller-sized somites.     

Patient Safety Culture,Evidence-Based Practice and Performance in Nursing

Evidence-based practice is a problem-solving approach in which the best available and useful evidence is used by integrating research evidence, clinical expertise, and patient values and preferences to improve health outcomes, service quality, patient safety and clinical effectiveness, and employee performance. This study aimed to identify the effects of nurses’ patient safety culture perceptions and their evidence-based nursing attitudes on the hospital’s patient safety level and employee performance. A cross-sectional design was employed in this study. Participants included nurses working in a state hospital in Burdur, Turkey, and 218 nurses responded to the research instrument (participation rate: 55.7%). Data were collected through face to face interviews that were conducted from February 20–May 20, 2016. The results of the analyses revealed that evidence-based nursing attitudes and hospital safety culture dimensions explained 29.2% of the total variance in the hospital patient safety level, while evidence-based nursing attitudes and hospital safety culture dimensions explained 15.5% of the total variance in nurse performance. The “evidence-based nursing related beliefs and expectations” aspect of the evidence-based nursing attitude dimension, and the “management support for patient safety” aspect of the patient safety culture dimension were significant predictors of nurses’ performance. The present findings add to the increasing interest in improving evidence-based practice and service quality in order to achieve better patient outcomes.     

金刚石膜磁阻效应

在F－S薄膜理论的基础上,考虑了晶格散射和杂质散射,通过求解驰豫近似下的Boltzmann方程,计算了P型单晶半导体金刚石膜（矩形）在球形能带下的电导率及考虑金刚石的轻空穴带、重穴穴带和分裂带为并联电阻模型时的磁阻,给出了磁阻和金刚石膜厚度,磁场强度、迁移率的关系。研究表明：金刚石的轻空穴带、重空穴带和分裂带对磁阻的影响不相同。厚膜的磁阻和块材的磁阻相差不大,磁阻和温度、磁场强度,迁移率有密切关系。     

4种软体动物凝集素的细胞凝集性研究

从4种软体动物肌肉中获得凝集素粗提液．用人的四种血型红细胞和三种动物红细胞检测其凝集活性，结果表明，每种软体动物凝集素至少凝集6种以上的红细胞．兔血红细胞对凝集素最敏感．能够和兔血细胞发生凝集反应的海螺丝、缢蛙、毛蚶、四角蛤蜊凝集素提取液的最小蛋白浓度分别为0．67μg／ml，0.78μg／ml，0．29μg／ml和0．49μg/ml。6种微生物细胞或孢子不能与凝集素样品发生凝集反应。     

面向语义Web的知识表示框架

语义互联网（Semantic Web)主要在于提供计算机软件可处理的元数据（Metadata)描述和信息表达方式，介绍了RDF（S）技术为基础的在Web上表达知识信息的方法，讨论了运用RDF（S）技术建立知识表示本体（Ontology)，以及通过扩展基本的RDF（S）描述集合方法来增强表示特定领域知识的能力，提出了运用基于RDFS技术的基本RDF（S）元训集合，通用描述元语集合，公理描述元语集合和关系约束元语集合进行知识表示的技术框架，使用这4层元语集合，可以将一般领域的知识信息以RDF（S）的方式存储在Web平台上，并通过相应支持XML的程序进行处理。     

用拉曼波谱分析金刚石膜的内应力

对拉曼波谱测量金刚石薄膜内应力时存在的差异现象进行了分析。研究表明应力方向和晶体取向的未知,导致多晶金刚石薄膜中应力值与拉曼波谱位移量之间的比例系数难以准确选取,是造成计算出的内应力结果不一致的原因之一。