基于REVIT族的刚接柱脚BIM方法研究

基于REVIT族的图形辅助编译功能,可实现参数化驱动图形的建模;通过嵌套族的关联驱动,特别适合于复杂的组合构件族的开发。通过创建刚接柱脚组合构件的嵌套族,阐述了REVIT族在参数的驱动、关联和传递方面的应用优势,探索复杂组合构件的BIM设计方法及其参数控制技巧,为BIM标准化构件信息资讯平台的建立提供必要的探索。     

家庭因素对体育专业大学生心理健康的影响

采用SCL-90量表与问卷调查相结合的方法,对体育专业大学生心理健康状况进行调查,分析了家庭来源地、父母受教育程度、父母关系及家庭经济状况各因素对体育专业大学生心理健康的影响.发现父母关系状况对体育专业大学生心理健康有显著影响;经济状况不同对大学生人际关系产生影响.进一步调查发现不同经济来源对大学生心理产生不同影响,家庭来源地、父母受教育程度对体育专业大学生心理健康状况无显著性影响.     

加强产学合作搞好重点专业建设

从产学合作教育的组织机构建设、校内外产学合作教育基地建设、校企技术合作研究、培养双师队伍等几个方面论述了产学合作教育对重点专业建设的重要性;通过产学合作教育,形成了一主线、两体系、宽基础、多方向、走产学研合作教育的教学培养模式,使学生的岗位能力和实践技能得到加强.     

对建立中国特色养老居住形式的思考

针对新世纪我国人口老龄化问题，从比较中外养老体制差异和分析我国养老特点入手，着重介绍家庭单元式养老住宅，希望利用合理的养老住宅设计加强对家庭养老这种具有中国特色养老居住形式的促进作用，为老人提供一个更加健康舒适的养老环境。     

Rebuttal re: "Confirmatory bias and the persistent influence of discredited data in interpreting the stress-cancer link: Commentary on Michael et al. (2009)".

[Correction Notice: An erratum for this article was reported in Vol 30(4) of Health Psychology (see record 2011-13978-001). The letter was missing the doi. The correct doi is 10.1037/a0022737. The online version of this article has been corrected.] Responds to the comments by J. C. Coyne and C. Johansen (see record 2011-09497-016) on the current author's original article, "Influence of stressors on breast cancer incidence in the Women's Health Initiative" (see record 2009-03297-001). Coyne and Johansen (2011) took issue with the study conducted by the current authors' group (Michael et al., 2009), which analyzed the interaction between stressful life events and social support on breast cancer risk among 83,334 postmenopausal women enrolled in the Women’s Health Initiative (WHI). While the current authors agree with the Coyne and Johansen that too often null results are difficult to publish due to confirmatory bias that privileges results that support an alternative hypothesis, they strongly disagree with the assertion that their group selectively reported findings, inaccurately reported findings, or provided selective and uncritical reference to the existing literature. (PsycINFO Database Record (c) 2011 APA, all rights reserved)     

含有多馈入直流的交直流混合电网高压直流建模研究

讨论了目前研究交、直流混合电网时在直流建模方面存在的模型过度简化及模型选用不恰当问题；分析了稳定性研究中直流建模的一般方法，指出了简单模型、响应模型和详细模型的基本特征；基于NETOMAC环境，以中国南方电网为原型对改进的直流响应模型和直流详细模型进行了建模和仿真对比研究，分析了两种模型的优、缺点和适应性；对含有多馈入直流且直流落点邻近的南方电网，探讨了现有HVDC建模方法在研究大扰动下交直流相互影响及直流换相失败对邻近交直流系统的影响方面存在的明显不足。从基于动态相量法计及电压畸变的新直流相量模型研究和基于机电／电磁暂态模型的交直流混合仿真算法研究两个截然不同的角度提出了可行的直流建模研究思路。研究成果为含有多馈入直流的交直流混合电网的安全稳定分析提供了建模依据和参考，也为仿真分析多直流逆变站的连锁换相失败问题提供了新的解决思路。     

生成式程序设计研究概述

随着软件规模越来越大、软件复杂度越来越高,如何高效地开发出高质量的软件以及如何有效地维护和更新软件都是当前软件方法学研究所关注的重点。为了实现这一目标,已经陆续出现一些有效的方法和技术。Krzysztof Czarnecki和U．Eisenecker融合先进方法和技术的精髓,提出了一种新的软件工程范型——生成式程序设计：基于为软件系统族进行建模,对给定的需求规格说明,利用配置知识,把基本的可重用构件根据需求进行自动化的配置以产生高定制、优化的软件产品。生成式程序设计的基础是面向系统族的生成式领域模型,该模型包括三个基本成分：问题域、解域和连接这两个域的配置知识。生成式程序设计包含两个开发周期：一个是设计和实现生成式领域模型,即支持重用的开发;另一个是利用生成式领域模型生产出具体的软件系统,也即利用重用的开发。本文将详细地介绍此软件工程范型的分析与设计方法和实现技术。     

Effect of Ga doping on micro/structural, electrical and optical properties of pulsed laser deposited ZnO thin films

Undoped and Ga doped ZnO thin films (1% GZO, 3% GZO and 5% GZO) were grown on c-Al₂O₃ substrates using the 1, 3 and 5 at. wt.% Ga doped ZnO targets by pulsed laser deposition. X-ray diffraction studies revealed that highly c-axis oriented, single phase, undoped and Ga doped ZnO thin films with wurtzite structure were deposited. Micro-Raman scattering analysis showed that Ga doping introduces defects in the host lattice. The E₂^High mode of ZnO in Ga doped ZnO thin film was observed to shift to higher wavenumber indicating the presence of residual compressive stress. Appearance of the normally Raman inactive B₁ modes (B₁^Low, 2B₁^Low and B₁^High) due to breaking of local translational symmetry, also indicated that defects were introduced into the host lattice due to Ga incorporation. Band gap of the Ga doped ZnO thin films was observed to shift to higher energy with the increase in doping concentration and is explicated by the Burstein-Moss effect. Electrical resistivity measurements of the undoped and GZO thin films in the temperature range 50 to 300 K revealed the metal to semiconductor transition for 3 and 5% GZO thin films.     

Markov Random Fields in Pattern Recognition for Semiconductor Manufacturing

Under the most general conditions of an anisotropic Markov random field, we model the two-dimensional spatial distribution of microchips on a silicon wafer. The proposed model improves on its predecessors as it stipulates the spatial correlation of different strengths in all eight directions. Its canonical parameters represent the intensity of failures, main effects, and interactions of neighboring chips. Explicit forms of conditional distributions are derived, and maximum pseudo-likelihood estimates of canonical parameters are obtained. This numerical characteristic summarizes general patterns of clusters of failing chips on a wafer, capturing their size, shape, direction, density, and thickness. It is used to classify incoming wafers to known root-cause categories by matching them to the closest pattern.     

Influence of additives on electrodeposition of bright Zn-Ni alloy on mild steel from acid sulphate bath

The influence of a condensation product (CP) of veratraldehyde (VRTD) and p-amino benzoic acid (PABA) on Zn-Ni alloy electrodeposited onto mild steel was studied in acidic sulphate solutions. Ethylenediaminetetraaceticacid (EDTA) and cetyltrimethylammoniumbromide (CTAB) were used as complexing and wetting agents, respectively. The effect of bath constituents, pH, current density and temperature on nature of deposit were studied through Hull cell experiments. The bath constituents and operating parameters were optimized. Deposit properties and corrosion resistance were discussed. Throwing power, current efficiency and polarization studies were carried out. SEM photomicrographs of the deposit obtained from optimum bath revealed fine-grained deposit of the alloy in the presence of condensation product and hence modified the morphology of zinc-nickel alloy deposit. IR spectrum of the scrapped deposit showed inclusion of addition agent.