大学生网络依赖调查与干预研究

研究使用大学生网络依赖量表和"大五"人格问卷,调查大学生的网络依赖状况及其与人格的相关,得出大学男生网络依赖者多于大学女生。网络依赖与人的谨慎性、宜人性负相关,而与情绪性正相关的结论,在此基础上设计出针对网络依赖者的心理拓展训练干预方案,并通过实验验证方案。实验结果表明,用拓展训练来对大学生网络依赖者进行干预,基本可以达到预想的效果。     

调查:中国消费者缺乏忠诚度

咨询公司贝恩和调查机构"Kantar World panel"共同发布的新调查显示,中国消费者是喜欢冒险的购物者,他们不停地尝试新品牌,很少忠实于某一种牌子。研究人员表示,这项调查看起来要令大消费品公司的市场部门大失所望了。"外界一直期待随着市场更加成熟,中国人将变得更为忠实。如今我们要对这种想法说不了",贝恩上海的布鲁诺.兰内斯说,"对品牌经理人来说,这或许是令     

水利工程建设征地移民实物调查智能化系统设计

近年我国对水利水电工程建设征地移民工作日益重视,移民安置规划设计对实物指标调查成果及效率的要求也相应提高,传统以人工为主的调查方式已经满足不了现代化征地移民安置设计及实施、管理的需求。该研究以优化实物指标调查流程为基础,通过软件设计和硬件开发,以信息化的手段构建实物指标调查智能化系统。系统集征迁实物指标数据采集、整理及统计分析等功能于一体,达到提高调查工作效率、提高成果质量,快速响应征迁红线调整的效果,为水利工程建设征地移民安置规划设计提供更高质高效的服务支持。     

基于调查分析为前提的包装设计

针对经济市场的不断扩大以及精神生活成为目前消费主流的情况,分析了经济市场发展变化的趋势,提出了基于调查分析为前提的包装设计的重要性。阐述了采用多样的调查分析方法,建立明确的设计方向、方案和市场评价体系,指出调查分析是包装设计成功的必然条件及途径。     

胜利油田孤东采油厂扎实开展油井计量调查

日前,胜利油田孤东采油厂开展了以了解掌握油田油井生产状态变化情况为主要内容的油井计量调查活动。在计量调查过程中,调查人员严格各项操作标准和原油计量管理制度,仔细调查油井的日产液量、日产油量、含水等油井生产参数,调查录取掺水井的液量、掺水量、参数等各项指标。     

调查显示：美地区传统印刷方式将长期存在

美国印刷业市场信息与研究组织PRIMIR于2010年2月聘请IT Stratcgies调查人员就北美地区数字印刷的应用趋势进行了调查。     

第一次全国海洋经济调查相关标准印发

近日,第一次全国海洋经济调查(以下简称"调查")领导小组办公室向沿海各省、自治区、直辖市和计划单列市,以及局属有关单位印发了《全国海洋经济调查区域分类》、《海洋及相关产业分类(调查用)》和《主要海洋产品分类目录(调查用)》三项标准规范。《全国海洋经济调查区域分类》规定了11个沿海省和4个非沿海省乡级及乡级以上行政区分类与代码、行政区名称和代码,适用于"调查"对行政区域进行标识、信息处理和数据交换等过程;《海洋及相关产业分类》规定了我国海洋及相关产业的分     

市场调查在计量检测技术机构中的作用和应用

看到这个题目，也许很多人会认为没有必要在处于长期垄断地位的计量检测技术机构中开展市场调查活动，其实不然，面临越来越复杂的市场竞争环境，越早开展市场调查等一系列的市场活动，对于机构的长久生存和发展而言是越有利的。本文将从市场调查的一般介绍、计量检测技术机构开展市场调查活动的必要性、市场调查在计量检测技术机构中的应用三个方面来进行阐述。     

单人单机操作中人员性格与作业速度关系的研究

文章研究了单人单机操作中人员性格与作业速度的关系。采用卡特尔16种人格因素测验量表,对某军事院校随机抽取的19名学员的个性特征进行测试,其结果同单人单机操作实验成绩进行比较分析。研究表明人的性格特征对单人单机作业速度并没有显著的影响。但是,在单人单机操作中,不同性格人员在不同的训练阶段呈现出不同的作业规律。     

浅谈雷电灾害调查访问技巧

由于雷电灾害的随机性、小概率性和不可预见性,发生时不可能正好有专业人员在现场观察记录,只有事后通过调查了解雷电灾害发生时的情况,其中主要的调查了解方法就是雷电灾害调查访问。雷电灾害调查访问是指雷电灾害发生后,雷电灾害调查人员为查明雷电灾害原因、雷电灾害损失和雷电灾害责任,通过作者多年雷电灾害调查实践,我们总结出了简要的雷电灾害调查现场访问经验技巧。     

Insertion of triangulated surfaces into a meccano tetrahedral discretization by means of mesh refinement and optimization procedures

In this paper, we present a new method for inserting several triangulated surfaces into an existing tetrahedral mesh generated by the meccano method. The result is a conformal mesh where each inserted surface is approximated by a set of faces of the final tetrahedral mesh. First, the tetrahedral mesh is refined around the inserted surfaces to capture their geometric features. Second, each immersed surface is approximated by a set of faces from the tetrahedral mesh. Third, following a novel approach, the nodes of the approximated surfaces are mapped to the corresponding immersed surface. Fourth, we untangle and smooth the mesh by optimizing a regularized shape distortion measure for tetrahedral elements in which we move all the nodes of the mesh, restricting the movement of the edge and surface nodes along the corresponding entity they belong to. The refining process allows approximating the immersed surface for any initial meccano tetrahedral mesh. Moreover, the proposed projection method avoids computational expensive geometric projections. Finally, the applied simultaneous untangling and smoothing process delivers a high‐quality mesh and ensures that the immersed surfaces are interpolated. Several examples are presented to assess the properties of the proposed method.     

Certification Institutions Expected to Update and Transfer Information on Present Standards

Standards are the basis for production enterprises to organize production, ex-factory inspection, trade (delivery) and technical exchanges, product certification, quality arbitration and supervision.……     

The Research of Anti-Wear Properties of Organomolybdenum Compounds in the Engine Oils

A four-ball tester was used to evaluate the anti-wear performance of three kinds of organomolybdemun compounds in the engine oils, i. e., molybdenum dialkyldithiophosphate (MoDDP), molybdenum dialkyldithiocarbamate ( MoDTC), and sulphur and phosphorus freeorganomolybdeum (Molybdate). The results indicate that a low concentration of MoDDP doesn' t improve the anti-wear properties of the commercial engine oils, but a high concentration of MoDDP can obviously improve the anti-wear properties and the load-carrying capacity of the engine oils. MoDTC doesn' t improve the antiwear properties of the engine oils, but worsens the anti-wear properties of the oils. Signifi can timprove ment of frictional and wear characteristics is obtained with Molybdate added in the commercial engine oils and the formulated oils.     

Flow calorimeter for enthalpy increment measurements on condensed gases

A flow calorimeter for enthalpy increment measurements on condensed gases is presented. A better knowledge of the properties of the liquefied natural gas is needed, and therefore a liquid loop has been designed for our flow calorimeter. The fluid loop in the calorimeter is designed in order to avoid the two-phase region, since two phases would give compositional disturbances in the measurements. The avoidance of the two-phase region is made possible by increasing the pressure of the test fluid after the measurement section, then heating the fluid at super-critical pressure past the critical point. Finally, the fluid is throttled to the low-pressure gas state at the inlet condition of the compressor that circulates the fluid. To perform the pressure increase, a new cryogenic pump has been designed. To evaluate the new equipment, measurements were taken on liquid ethane over the temperature range 146–256 K at pressure between 0.9 and 5.1 MPa.     

Refrigerators Enter a New Era of Health Preservation Frestech initiates the establishment of China's first standard for household sterilization refrigerators

On November 30, 2007, the China Association for Standardization (CAS) held a press conference at Beijing Diaoyutai State Guest House. Leaders from the China Household Electric Appliance Research Institute, the China Household Electric Appliance Association, and the China Consumers' Association attended and made speeches.……     

Optimum-Simulation von Ernteprozessen

Zusammenfassung Bei der Gestaltung von Ernteprozessen — beispielsweise des Prozesses Mähdrusch, Körnertransport und -abnahme — als transportverbundene Fließarbeitsverfahren mit mindestens zwei verschiedenen Arbeitsmitteln gibt es einen großen Optimierungsspielraum. Solche Prozesse sind mehrstufige Bedienungsprozesse mit gemischter Anordnung der Bedienungseinrichtungen. Außerdem besitzen sie stark ausgeprägte räumliche Aspekte. Es wird vor allem gezeigt, welche Merkmale solcher Prozesse in Simulationsmodellen abgebildet sein müssen, welche Zielgrößen in Abhängigkeit von welchen Einflußgrößen unter Berücksichtigung welcher Prozeßbedingungen ermittelt werden sollten und wie der Bewertungsprozeß zur Ermittlung der gewünschten Informationen gestaltet werden muß.     

A study of centrifugal cast high boron high speed steel

In the present study a high‐boron high speed steel (HSS) roll material was designed. Many expensive alloy elements have been substituted by cheap boron alloy, and high‐boron high speed steel roll has been manufactured by centrifugal casting method. The microstructures, mechanical properties and wear resistance of centrifugal casting high‐boron high speed steel roll have been investigated by optical microscopy (OM), scanning electron microscopy (SEM), and X‐ray diffraction (XRD) analysis, hardness test, impact test and wear test. The results indicated that the solidification microstructures of high‐boron high speed steel roll consisted of M₂(B,C), (W,Mo)₂(B,C), M₃(B,C), M₂₃(B,C)₆ type borocarbides and martensite, a small amount of retained austenite. Borocarbides were continuously distributed over the grain boundary. After quenching from 1050 °C, local broken network appeared in partial borocarbides, and fine secondary borocarbide precipitated from the matrix. After tempering from 525 °C, the amount of precipitated borocarbide increased significantly. After heat treatment, the hardness of high‐boron high speed steel roll excelled 60 HRC, and its impact toughness excelled 8.0 J/cm². The single groove steel rolling amount of high‐boron high speed steel rolls increases by 500% than that of bainite cast iron roll, when the rolls are used in K₁ mill housing of bar mill.     

Certification Becomes Important for the I Quality; and Safety Supervision of the Chinese Liquor Sector

The end of 2007, over 200 unit products of more than 80 Chinese firms have passed the quality grade certification for liquor products. These products involve distilled spirits, beer, wine, yellow wine, fruit syrup wine and others, and cover over 80% of the national top-branded liquor products.……     

Deposition and Coating Properties on CVD Tungsten

Surface characterization and microstructure studies are performed on chemical vapor deposited (CVD) tungsten coating. There is about 2 μm thickness diffusion layer of tungsten in the molybdenum substrate. The thermal shock test shows tungsten coating has good adhesion with molybdenum substrate, but the elements of oxygen and carbon in the tungsten coating have the bad affection to the adhesion. The result of high-temperature diffusion experiment is the diffusion rate from molybdenum substrate to tungsten coating is faster.