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Search Results: 1 - 10 of 273603 matches for " 张涛 "
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城乡一体化背景下职业教育存在问题及对策探析
On the Basis of Urban-Rural Integration and Research on Problems and Countermeasures of Vocational Education
 [PDF]


Vocational Education (VE) , 2012, DOI: 10.12677/ve.2012.11001
Abstract:

目前,在我国城乡一体化建设过程中,专业技能型人才需求有很大的缺口,在一定程度上制约了城乡一体化建设的开展,而职业教育是培养技能人才的重要途径,正确指导职业教育的发展对促进我国城乡一体化建设具有非常重大意义。对此,本文探析了城乡一体化建设对职业教育发展的要求以及职业教育存在的问题,并根据城乡一体建设的发展要求提出了职业教育发展的对策,以期职业教育在促进我国城乡一体化建设中发挥更大的作用。
At present, in the process of urban and rural integration, a wide gap of professional skilled per- sonnel, restricting the carrying out of the urban-rural integration, and vocational education is an important way to cultivate skilled personnel, the correct guide on the development of vocational education in promoting the integration of urban and rural areas have very great significance. In this regard, this paper explores the requirements for the development of vocational education and vocational education in urban and rural inte- gration problems, based on the development of integrated urban and rural construction requirements of the proposed countermeasures of the development of vocational education, vocational education in order to promote the integration of urban and rural play a greater role.

湛江钢铁焦炉桩基上浮问题静载试验和分析
Static Load Test and Analysis on the Pile Up-Floating Problem of the Zhanjiang Steel Coke Oven Project
 [PDF]


Metallurgical Engineering (MEng) , 2015, DOI: 10.12677/MEng.2015.24027
Abstract:
针对湛江钢铁焦炉项目打入PHC桩施工中出现的桩基上浮问题,在采用常规的竖向静荷载试验发现承载力不足之后,再采取土体破坏后继续加载试验、独桩静荷载试验和复压后静荷载试验等方法,研究软土地基桩基上浮现象、原因和处理措施。
Aimed at the pile up-floating problem of the driven PHC piles of the Zhanjiang Steel coke oven project, a conventional vertical static load test indicates that the load capacity is insufficient. Then further test methods, such as post soil failure successive load tests, single pile static load tests, post re-driving static load tests, are taken, and the pile up-floating phenomena, reason and treatment measures are studied.
薄壁钢管离心混凝土管桩轴向承载力试验分析
Experimental Analysis of Axial Bearing Capacity of Centrifugal Concrete Filled Steel Tubular Pile
 [PDF]


Metallurgical Engineering (MEng) , 2016, DOI: 10.12677/MEng.2016.31003
Abstract:
对于部分使用长桩的建设项目工程区域的持力层上方存在较厚的坚硬土层和软弱夹层地质条件,研究开发薄壁钢管离心混凝土管桩。现场打桩试验证明薄壁钢管离心混凝土管桩的抗锤击能力比PHC桩优越。现场单桩静荷载试验、实验室短柱轴向压力试验和桩身承载力计算说明薄壁钢管离心混凝土管桩的轴向承载力满足一对一替代原有的同直径规格钢管混凝土桩的要求。
In order to make the long pile to penetrate the strong and weak soil layer and reach the bearing layer, centrifugal concrete filled steel tubular piles are developed for some important projects. Pile driven experiment shows that centrifugal concrete filled steel tubular piles fit the geological condition better than PHC pile. Single pile static axial load experiment, short column static axial load experiment and the bearing capacity computation results show that centrifugal concrete filled steel tubular pile can one by one replace the concrete filled steel tubular pile of the same diameter originally used in projects.
太赫兹光子带隙光纤的设计及传输特性模拟
Design and Propagation Properties Study on Terahertz Photonic Bandgap Fiber
 [PDF]

王豆豆,
Applied Physics (APP) , 2014, DOI: 10.12677/APP.2014.45009
Abstract:

以新型太赫兹低损耗材料Topas环烯烃共聚物为基质,设计了一种基于带隙效应传输太赫兹波的空气芯聚合物光子晶体光纤。应用有限元方法对光纤的传输特性进行了分析。结果表明,该光纤在1.47 THz附近具有宽度约为0.2 THz的连续低损耗传输带宽,可以很好地将太赫兹波限制在空气芯中传输。在1.51 THz处获得了0.13 cm?1最小总损耗值。所设计的太赫兹Topas光子带隙光纤具备结构简单、易制备、直径小而易弯曲的特点。
An air core photonic bandgap fiber is designed based on the novel Terahertz low-loss material Topas cyclic olefin copolymer. Propagation properties in the terahertz band of the fiber are investigated by using the finite element method. Numerical results indicate that the fiber has a low loss photonic bandgap within a broadband area about 0.2 THz around 1.47 THz, and THz wave is welled confined in the air core. Loss reaches the minimum value of 0.13 cm?1 at 1.51 THz. Struc- ture of designed terahertz Topas photonic bandgap fiber is simple, feasible for fabrication and bendable because of the relatively small diameter.

转型时期行业协会经济自治的影响因素分析——基于广东、浙江两地的经验数据
Investigation of Factors Determining Trade Associations’ Self-Governance in Transition——Based on the Questionnaire Survey in Guangdong and Zhejiang
 [PDF]

石碧,
Modern Management (MM) , 2012, DOI: 10.12677/MM.2012.23018
Abstract: 文章采用虚拟二分变量(binary dummy regression)方法,通过probit、logit和extreme value三种模型,对影响我国行业协会自治的因素进行回归分析。结果表明:理事单位占会员的比例、协会收入中来源于会费的比例越大,越不利于协会的自治;协会对违规者的惩罚力度、协会的决策程序民主度、政府授权给协会的管理权限越大(多),协会的自治效果越好。其他因素如协会成立的时间长短、协会专职人员的数量多少、协会经费中用于会员支出的比例等均未发现显著影响。
This paper employs binary dummy regression, using probit, logit and extreme value to find out the influential factors associated with trade associations’ self-governance. The results show: The larger the tight-ness and the percentage of admission fees and fees from service to members and out-oriented service to trade associations’ total revenue is, the worse do trade associations self-govern; The more powerful the punishment and encouragement measures are, the more democratic the decision-making process is, the more autonomous rights government gives, the better do trade associations self-govern. Moreover, other factors such as the length of trade association’s history, the number of the association’s employers, the percentage of associa-tion’s expenditure for membership to its total expenditure have no significant effect. At last suggestion is given.
包头地区结直肠癌发病风险因素的病例对照研究
The Risk Factors of Colorectal Cancer in Baotou: A Case-Control Study
 [PDF]

树春,
Asian Case Reports in Oncology (ACRPO) , 2015, DOI: 10.12677/ACRPO.2015.44005
Abstract:
目的:研究影响结直肠癌发病的风险因素,为预防和控制结直肠癌的发病提供理论基础。方法:本次研究采用病例对照研究的方法,回顾性收集在我院住院的90例结直肠癌患者作为病例组,并选取同期住院的90例非肿瘤患者作为对照组,收集相关资料,研究影响结直肠癌发生的危险因素。结果:单因素分析发现,高脂肪饮食(OR = 2.28, 95%CI: 1.13~3.91)、食用新鲜蔬菜少(OR = 3.66, 95%CI: 1.93~6.78)、体育锻炼少(OR = 2.22, 95%CI: 1.09~3.81)、饮酒(OR = 1.99, 95%CI: 0.89~3.12)、文化程度低(OR = 3.50, 95%CI: 1.90~6.61)、恶性肿瘤家族史(OR = 2.60, 95%CI: 1.09~6.49)、阑尾炎史(OR = 3.98, 95%CI: 1.70~10.89)是结直肠癌发病的风险因素;多元Logistic回归模型进行分析发现,食用新鲜蔬菜少(OR = 1.732, 95%CI: 0.812~2.944)、文化程度低(OR = 1.885, 95%CI: 1.447~3.996)、阑尾炎史(OR = 1.495, 95%CI: 0.994~3.231)是结直肠癌发病的独立危险因素。结论:食用新鲜蔬菜少、低文化程度、有阑尾炎史的人群是结直肠癌高发的人群,针对这类重点人群需要加强预防和干预。
Objective: To study the risk factors of colorectal cancer and provide the basis to prevent and control the disease. Methods: The case-control study was used. The information of 90 cases of colorectal cancer patients in our hospital was retrospectively collected as the case group and 90 cases of non-hospitalized cancer patients in the corresponding period was selected as the control group. Results: Univariate analysis showed that high fat diet (OR = 2.28, 95%CI: 1.13 - 3.91), less eating fresh vegetables (OR = 3.66, 95%CI: 1.93 - 6.78), less physical exercise (OR = 2.22, 95%CI: 1.09 - 3.81), drinking wine (OR = 1.99, 95%CI: 0.89 - 3.12), low educational level (OR = 3.50, 95%CI: 1.90 - 6.61), family history of cancer (OR = 2.60, 95%CI: 1.09 - 6.49) and history of appendicitis (OR = 3.98, 95%CI: 1.70 - 10.89) were risk factors for the colorectal cancer. Multiple Logistic regression analysis found that less eating fresh vegetables (OR = 1.732, 95%CI: 0.812 - 2.944), low educational level (OR = 1.885, 95%CI: 1.447 - 3.996) and history of appendicitis (OR = 1.495, 95%CI: 0.994 - 3.231) were independent risk factors for the colorectal cancer. Conclusion: The populations with less eating fresh vegetables, low education level and the history of appendicitis are the high risk people and it is necessary to strengthen the prevention and intervention.
纤维增强高尔夫球拍击球过程的动力学分析及编程

复合材料学报 , 1994,
Abstract: 本文描述了用于纤维增强高尔夫球拍动力学分析有限元程序的编程方法.应用所编程序,高尔夫球拍设计者可以为特定的高尔夫球手设计制造理想的高尔夫球拍.球拍击球的运动分为刚体运动和振动两部分.在刚体运动中,将球拍看作一带有集中质量的杆.用两节点等参元素来计算球拍的振动响应,基于静态压缩实验来计算击球时的撞击力,并由此撞击力来预报受击后球的运动轨迹.动态应变的有限元计算结果与实验结果吻合得很好.
《煤炭工程》杂志对我校自动化专业特色建设的促进作用

煤炭工程 , 2014, DOI: 10.11799/ce201410072
Abstract: 《煤炭工程》杂志在我国煤炭行业的科技进步起到示范和引领作用。《煤炭工程》杂志也深刻地影响煤炭行业相关专业的教学、科研、学生培养、专业建设。本文从理论教学、实践设计、教材建设、实验室建设等几个方面,阐述了《煤炭工程》杂志在华北科技学院自动化专业特色建设过程中所起到的促进作用和取得的良好效果,对于其它杂志对相关专业建设的引领与带动作用具有借鉴意义。
基于单片机的瓦斯浓度检测报警装置的设计与仿真

煤炭工程 , 2014, DOI: 10.11799/ce201403040
Abstract: 针对煤矿安全生产实际,本文首先给出了采用单片机的煤矿瓦斯浓度检测报警装置的整体构架,然后对煤矿瓦斯浓度检测报警装置的各个部分硬件进行了详细的设计,给出了煤矿瓦斯浓度检测报警装置的硬件设计电路和软件设计框图,最后使用Proteus软件验证设计内容的正确性和可行性,证明了基于单片机的便携式煤矿瓦斯浓度检测报警装置在煤矿安全生产中具有一定的实际应用价值。
基于分布对象技术扩展Web应用程序的功能

福州大学学报(自然科学版) , 2000,
Abstract: 应用分布对象技术可以扩展交互式Web应用的功能 ,提高分布计算、交互处理、网络访问控制的能力 .阐述了如何应用ActiveX/DCOM分布对象技术实现网吧计费与管理系统的IC卡控制和安全认证功能
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