检索结果-南通市图书馆

The Evaluation of Design for Energy Efficiency of Buildings Based on Analysis Hierarchical Process and Grey Theory

在线全文

cnki会议

学校读者我要写书评

暂无评论

The Evaluation of Design for Energy Efficiency of Buildings ...

2011 IEEE 12th International Conference on Computer-Aided Industrial Design & Conceptual Design

作者： Qing FENG Bo WU College of Arts xi’an university of science & technology xi’an China Wei JIANG College of Arts xi’an university of science & technology xi’an China

＜正＞Based on the analysis of building energy efficiency features,considering the construction of energy efficiency factors,this paper AHP establish a comprehensive evaluation of building energy efficiency design model based on grey *** model mainly combines quantitative analysis, qualitative and quantitative analysis methods to overcome the evaluation’s the subjectivity and arbitrariness,and achieves a scientific and reasonable evaluation of comprehensive energy efficiency design of the ***,this paper designs and develops building energy efficiency evaluation software.

关键词： Building Energy Efficiency Evaluation GAHP(grey theory and analysis hierarchy process)

Reconsidering the Equivalence in Translation From Cultural Differences Perspective

在线全文

cnki会议

学校读者我要写书评

暂无评论

青年文学家 2009年第11期 56-58页

作者： LI Yin-ling(College of Foreign Languages,xi’an university of science and technology,xi’an 710054,China)

Translation involves language as well as *** similarities exist in languages;however cultural differences have an essential bearing upon *** approximate equivalent and loan words have different implications and usages in English and ***,this challenges the traditional concept of equivalence as a constitutive feature of *** an author,there is no such thing as absolute equivalence in the context of E-C translation for the simple reason that Chinese and English belong to two entirely different cultural ***,through careful comparative studies,relative equivalents can be achieved.

关键词： cultural differences equivalence

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

陕西农村居住地生态环境影响因素分析

中国农业资源与区划 2018年第4期39卷 103-107页

作者：张韵西安科技大学

[目的]随着农村城镇化进程的加快,由此引发的农村居住地生态环境恶化已成为制约农业和农村经济可持续发展的瓶颈,加强农村居住地生态环境保护和治理,是目前亟待解决的重要问题。研究分析农村居住地生态环境影响因素,为有效改善居住地生... 详细信息

[目的]随着农村城镇化进程的加快,由此引发的农村居住地生态环境恶化已成为制约农业和农村经济可持续发展的瓶颈,加强农村居住地生态环境保护和治理,是目前亟待解决的重要问题。研究分析农村居住地生态环境影响因素,为有效改善居住地生态环境提供重要理论依据。[方法]以陕西省为主要研究区域,采用层次分析法,构建矩阵模型,研究影响陕西省农村居住地生态环境的农民因素、生产活动和政府因素3个层次,包括周边乡镇企业废物排放、农用投入品的使用、畜禽养殖业废物排放、人均消费支出、农村人均家庭纯收入、农村家庭恩格尔系数、环保意识、政府监管力度、环境保护财政支出,相关政策法规等10个因素所占权重,得到不同因素的重要性排序。[结果]乡镇企业废物排放、农用投入品的使用、农村人均家庭纯收入和农村人均消费支出是影响农村居住地生态环境的主要因素,且重要性排序为乡镇企业废物排放>农用投入品的使用>农村人均家庭纯收入>农村人均消费支出。[结论]加强乡镇企业废物排放管理和农用投入品的生产和使用审查,降低不必要的消费支出,同时为农民提供更多的就业机会,提高人均家庭村收入,是目前改善农村居住地生态环境的有效措施,为农民提供一个安全舒适的居住场所,这也将有利于农村经济的可持续发展。

关键词：农村居住地生态环境影响因素措施环境保护

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

克拉玛依九区火山岩储层主控因素与物性下限

西南石油大学学报（自然科学版） 2011年第6期33卷 7-12,201页

作者：汤小燕西安科技大学地质与环境学院陕西西安710054

火山岩油藏岩性复杂,储层物性的控制因素和物性下限难以确定,致使对火山岩油藏试油、试采以及压裂改造等带来不便。利用岩芯观察、岩芯物性分析化验、试油试采、测井解释等多种分析手段,从火山岩岩性特征、岩相特征、储集空间类型、构... 详细信息

火山岩油藏岩性复杂,储层物性的控制因素和物性下限难以确定,致使对火山岩油藏试油、试采以及压裂改造等带来不便。利用岩芯观察、岩芯物性分析化验、试油试采、测井解释等多种分析手段,从火山岩岩性特征、岩相特征、储集空间类型、构造位置等与物性特征进行对比分析出发,研究了影响克拉玛依油田九区石炭系火山岩储层物性的控制因素。在弄清储层物性主要控制因素的基础上,采用生产动态资料刻度静态地质资料的方法确定了物性下限。研究结果表明:影响该区火山岩储层物性的主要因素是岩性岩相和构造位置,其次是储集空间和风化程度;并最终确定出石炭系不同储层基质物性下限值,沉积岩类为6.5%、凝灰岩类为5.0%、熔岩类为4.5%。

关键词：火山岩储层物性主控因素物性下限准噶尔盆地

维普期刊数据库

The Application of Threshold Segmentation Algorithm in Loess Microstructure Image Analysis

在线全文

学校读者我要写书评

暂无评论

The Application of Threshold Segmentation Algorithm in Loess...

2012 National Conference on Information technology and Computer science

作者： Nian-dong Deng Dept.of Geology and Environment Engineering xi''an university of science and technology xi''an,China Wang xiao Dept.of Geology and Environment Engineering xi''an university of science and technology xi''an,China Wang Feng Dept.of Geology and Environment Engineering xi''an university of science and technology xi''an,China Zhou Yang Dept.of Geology and Environment Engineering xi''an university of science and technology xi''an,China

The image research on loess microstructure which has profound influence on loess engineering mechanics properties is a new subject of geotechnical,the loess microstructure information and its section of the occurrence can be reflected via CT or electron microscope *** loess microstructure image was interpreted by the loess microstructure image processing system developed through VC++ 6.0 *** to the different gray values of the different materials in the microstructure image,the image segmentation algorithm was used to obtain the binary segmentation which showed that the image contrast was enhanced,noise elimination and background purification effect were *** paper aims to expand the application category of microscopic image processing and explore research methods of loess microstructure,which has positive guiding significance on the analysis of loess engineering properties.

关键词： Image Segmentation Loess Microstructure

STUDIES ON THE NUMERICAl SIMULATION OF UNSTEADY FLOWS

在线全文

cnki会议

学校读者我要写书评

暂无评论

Journal of Hydrodynamics 1995年第3期7卷 104-106页

作者： Lu xi-yun(university of science and technology of China, Hefei 230026, P. R. China)Supervisor: Prof. Tong Bing-gang, Zhuang Li-xian, Yin xie-yuan(university of science and technology of China, Hefei 230026, P. R. China)

Some typical unsteady problems that are mainly dominated by shock waves,vortices, or both of them have been numerically simulated in the present study. The time history of unsteady flows is time-accurately computed and analyzed. The main factors influencing the unsteady flow features are disc-ussed. Furthermore, the key points for achieving time-accurate and cost-effective numerical simulations are systematically summarized. The whole dissertation is divided into three parts: the first, the numerical simulation of unsteady compressible inviscid flows; the second, the numerical simulation of unsteady incompressible viscous flows; and the last, studies on unsteady flow numerical simulation methods. The main contributions of this dissertation consist of : (1) The construction methods of total variation diminishing (TVD)schemes are analyzed in general, and a symmetric TVD scheme is developed in special: (2) The time-varying transonic flow fields and their influence on force features for a transonicperiodically pitching airfoil are successfully studied; (3) Using the same approach as before, theunsteady flow structures of a moving shock interacting with a vortex and with a vortex pair areinvestigated; (4) The numerical simulation of the near wake complex vortex formation for acircular cylinder oscillating in arbitrary directions in a free stream has ben conducted throughouta wide range of oscillation parameters. Many experimentally investigated phenomena areduplicated and even renewed numerically. A parameter map in the amplitude-frequency plane,showing restons of vortex shedding formation, is given. The influences of oscillation parametersand Reynolds numbers on the force characters and on the time-varying flow structures areexplained; (5) The force characters and vortex structures in the near wake of the pitching ortranslating air foils oscillating around a high incidence angle are successfully predicted bynumerically solving the Navier-Stokes equations; (6) Some key p

关键词： unsteady flow viscous flow numerical method

维普期刊数据库

Novel design method of a multi - section transmission-line transformer using genetic algorithm techniques

在线全文

学校读者我要写书评

暂无评论

Novel design method of a multi - section transmission-line t...

11th International Conference on Electrical Machines and Systems

作者： Chen Ming Department of Electronics Engineering xi’an university of Architecture science and technology xi’an China 710005

＜正＞Design of a multi-section transmission-Line transformer（TLTs）for simultaneously matching multi-arbitrary frequencies and an arbitrary load is developed based on an ideal transmission-line circuit mode and genetic-algorithm techniques. Optimum design equations of the TLTs are presented,and its validity is proved by designing a three-section TLTs for three simultaneously matching operating *** then foursection TLTs for four simultaneously matching operating frequencies is successfully designed,*** validity of the simulations is verified by measured *** of the novel method is not only to omit the complex and difficult deductions of the complex and closed-form design equations,but also results in a important computing time savings,especially in the case of value n≥4.

关键词：

在线全文

cnki会议

学校读者我要写书评

暂无评论

图像置乱效果盲评价的灰色块分析方法

计算机工程与应用 2009年第34期45卷 171-173页

作者：田红鹏西安科技大学计算机学院西安710054

为有效评价图像的置乱程度,设计了一种基于灰色块分析的图像置乱效果评价方法。该方法首先分析置乱图像的特点,归纳理想状态下置乱图像的特征,并构造其特征序列作为参考序列;然后将置乱图像分块,并计算各子块图像的方差,形成小样本方差... 详细信息

为有效评价图像的置乱程度,设计了一种基于灰色块分析的图像置乱效果评价方法。该方法首先分析置乱图像的特点,归纳理想状态下置乱图像的特征,并构造其特征序列作为参考序列;然后将置乱图像分块,并计算各子块图像的方差,形成小样本方差序列,对该序列进行预处理后作为比较序列。最后,利用灰色关联分析理论计算两类序列之间的关联程度,得到图像置乱效果的性能指标。实验显示,用该方法评判图像置乱度不仅计算简单、运行速度快,而且不需要原图像的参与,就能得到更加客观、正确的评价结果。

关键词：图像置乱效果评价灰色关联分析方差

维普期刊数据库

RESEARCH ON SELF-ORGANIZATION ADVANCED MANUFACTURING MODE SUSTAINABLE DEVELOPMENT

在线全文

学校读者我要写书评

暂无评论

RESEARCH ON SELF-ORGANIZATION ADVANCED MANUFACTURING MODE SU...

2005年中国机械工程学会年会

作者： WANG Jinfu, ZHANG Daohong, CHENG Aiwu (School of Management, xi''an university of technology, xi''an, 710048 College of Management, xi''an university of Engineering science &technology, xi''an, 710048)

＜正＞Nowadays, global manufacturing environment makes competition of the manufacturing business and markets getting much more severe. Advanced manufacturing mode has aroused great attention all over the world. To discover the behavior and mechanism of organization in quick changing environment described complex phenomena, more and more people have paid attention to the complexity theory such as self-organization, dissipative structure theory, synergetic theory, etc. The paper introduces the concept of self-organization theories and Advanced Manufacturing Mode firstly. Then it puts forward the concept of sustainable development of organization on the basis of analyzing the characteristics of self-organization Advanced Manufacturing Mode. A thorough analysis of the mechanism of Advanced Manufacturing Mode sustainable development has been made accordingly. Finally, this paper provides the realization case of customer-driven advanced manufacturing system in xi’an Aircraft Industry Company Limited.

关键词： complexity phenomenon advanced manufacturing mode self-organization sustainable development