火力发电厂机组启动阶段铁含量测定方法改进的探讨

由于机组启动时候对给水、凝结水的含铁量要求较高,只有其合格才允许进行机组启动操作的下一步操作,而目前常用的测定铁含量的方法耗时较多,在机组启动过程中很难适应机组启动要求。通过大量实验,对目前国标规定的实验方法进行了一些改进,可以快速测定含铁量,误差完全可以满足机组启动需求。     

Content,Pedagogy, and Learning Outcomes in the International Marketing Course

Abstract

The early internationalization of business school curricula was in response to corporate needs and expectations, and the Association to Advance Collegiate Schools of Business (AACSB International) fostered changes by instituting accreditation outcomes that focused upon international content in the curriculum. By the late 1990s, a course in international marketing was standard at most accredited college and universities, and faculty in these courses reported on various approaches to teaching the course. The main objective of the current study was to examine the course content, pedagogy, and learning outcomes of current international marketing courses. As such, a content analysis of international marketing syllabi from 89 colleges and universities was conducted. Findings from this indepth analysis offer insights regarding knowledge content coverage, pedagogical strategy, and learning outcomes assessment and provide an update on the current status of teaching international marketing in schools of business.     

基于机器学习的压缩域镜头分割技术

为了进行视频结构化和视频内容分析,需要准确有效地提取视频镜头的边界信息.为此提出了一种利用支持向量机(SVM)学习压缩域特征的算法进行镜头边界检测,只需简单译码即可得到MPEG1/2等各类视频流压缩域的特征信息.经TRECVID2005镜头边界检测集的评测,该算法在保证查全率和检测精度的情况下获得了满意的效果.     

一种利用机器学习优化MIMO窃听信道天线选择的方法

为保障多输入多输出窃听信道系统中信息传输的保密性,提出了一种基于机器学习的天线选择方案。首先利用机器学习解决分类问题准确率高、处理大数据高效这一优势,设计了基于奇异值分解的特征值提取、基于信干噪比的标签赋值方案,建立了k最近邻分类器和逻辑回归分类器选择最优天线最大化保密性能（可达保密速率和保密中断概率）。与传统天线选择方案相比,所提方案获得了几乎一致的保密性能,并且大幅降低了系统的选择复杂度和误比特率。     

区域发展总体规划的主要内容与分析逻辑研究

区域规划是地理学中理论与实践重要的结合点与应用领域。它对生产要素优化配置,区域经济合理有序发展,人与自然和谐相处有着巨大影响。阐释规划概念与作用,总结规划主要内容与分析逻辑研究,有助于深化理解规划现实意义。     

Gender Discrimination in Chinese Recruitment Advertisements: A Content Analysis

Sex-role stereotypes exist as a primary source of gender inequality in employment. This issue becomes even more salient in the social context of China, where the traditional view of female inferiority persists and the legal system provides inadequate protection of equal employment rights. Reporting a content analysis of Chinese recruitment advertisements, this article concludes that gender discrimination is practiced by Chinese employers in recruiting for white-collar positions. It also finds that female applicants are more likely to encounter other forms of discrimination such as age and physical appearance requirements as well.     

The Role of the Internet in the Delivery of Export Promotion Services: A Web Site Content Analysis

ABSTRACT

This article examines the role of the Internet in the delivery of export promotion services. Based on a content analysis of the Web sites of 250 export promotion organizations (EPOs) representing over 130 countries, it is concluded that the majority of these organizations have not fully exploited the potentials of this technology in the delivery of support services to national exporters. Use of the Internet is primarily limited to dissemination of basic information with little effort made to utilize the interactive and customization features of the technology. The managerial and policy implications of this failure in terms of increased cost of market entry, lost export revenues, and exporter attrition are discussed.     

An Exploratory Content Analysis of Product Placement in Top Grossing Films

ABSTRACT

The current study examines the prevalence and characteristics of brand appearances in the top grossing films broadcast in the United Kingdom (U.K.) and Hong Kong (H.K.). An average of 13 brand appearances per film was recorded and similarities and differences in brand execution features were revealed in the two cultural markets. Most of the films registered on the U.K. and H.K. top grossing lists are US production, which demonstrates that product placements are increasingly exported to other cultures. It suggests the importance of examining product placement effectiveness across cultures and provides valuable insights for brand practitioners.     

基于因子分析法 的电子商务专业课程体系改革研究

本文选取湖南商学院三个具有典型代表意义的电子商务专业班级,通过对学生的抽样调查和数据分析认为,电子商务专业课程内容体系改革主要受到课程总体因子、课程比重因子、双语课程因子和课程实训因子四个方面的影响。因此,文章最后从这几个层面提出了相应的课程内容体系改革的建议。     

Content Analysis of Secondary Data: A Study of Courage in Managerial Decision Making

Empirical studies in business ethics often rely on self-reported data, but this reliance is open to criticism. Responses to questionnaires and interviews may be influenced by the subject's view of what the researcher might want to hear, by a reluctance to talk about sensitive ethical issues, and by imperfect recall. This paper reviews the extent to which published research in business ethics relies on interviews and questionnaires, and then explores the possibilities of using secondary data, such as company documents and newspaper reports, as a source for empirical studies in applied ethics. A specific example is then discussed, describing the source material, the method, the development of the research questions, and the way in which reliability and validity were established. In the example, content analysis was used to examine the extent to which the executive virtue of courage was observed or called for in items published in four international daily newspapers, and to explore the meaning which was attributed to "courage" in the papers.     

An Assessment of Experiential Learning of Global Poverty Issues Through International Service Projects

Service learning has been used to supplement a standard business curriculum, but not typically in an international business context. We report the results of two short-term study abroad programs in which we incorporated service learning projects, one in Cambodia and the other in Vietnam. Our objective is to assess how we organized and delivered effective service learning projects in short-term study tours, and to assess students’ learning outcomes on global poverty issues in a business curriculum. We used both quantitative and qualitative assessment measures. The findings suggest that several types of learning outcomes did occur through the service learning projects, as the literature suggested. Seeing poverty firsthand and doing something about it through service learning may be a first experience for many students, but it seems to be a transformational one for many. We conclude that students may approach business and even political decisions with a greater understanding of their impact on poverty in the developing world.     

A Content Analysis of Compatible Fit among Message Elements in Philanthropy Ads

This research examined philanthropy ad messages in terms of four key elements: philanthropy goal, beneficiary, expected fundraising impact, and how the suggested donation is appraised. A content analysis was carried out to systematically study ad messages from nonprofit organizations on the Philanthropy 400 list. Specifically, the frequency of appearance of each type of message elements was analyzed in terms of four theoretical concepts: regulatory focus (promotion vs. prevention goal), egoism/altruism (self vs. others as beneficiary), temporal orientation (present vs. future fundraising impact), and efficacy appraisal (self- vs. response-efficacy in how a donation is appraised). Since past research further suggests that persuasion may be enhanced when message elements are well matched in terms of “compatible fits,” this study further analyzed how the four message elements were combined in usage. The findings of this research show that while most nonprofit organizations actively utilized all four types of elements in their messages, the current practice did not follow the guidelines as would be suggested by compatible fits literature. In this respect, more research is needed to understand the discrepancy and provide better guidelines for future communication strategies in the nonprofit sector.     

The Effects of Process and Content Facilitation Restrictiveness on GSS-Mediated Collaborative Learning

Group Support Systems (GSS) technology, extensively applied in decision-making contexts, is now seeing increased application in the educational sector. Previous work has suggested that GSS applications can have significant positive effects on both the process and the outcome of collaborative learning. This study extends this work to examine the effects of process (high/low) and content (high/low) facilitation restrictiveness on GSS-supported collaborative learning. Our results indicate that content facilitation restrictiveness has no significant bearing on student learning. Process facilitation restrictiveness, on the other hand, is more influential, with knowledge acquisition by students requiring a low restrictive environment.     

国内社会政策领域的研究方法考察:基于2007-2010年核心期刊论文的内容分析

采用定量与定性相结合的方法,对近三年发表于核心期刊的389篇社会政策研究文章所使用的研究方法进行了内容分析。在我国的社会政策研究中,规范性研究较多,实证性研究较少,实证研究中主要使用的是调查研究、实地研究、文献研究与制度分析等研究方法,其中也确实涌现出了一批较为规范的实证研究,但是还远未能形成与国际接轨的研究方法体系,这也阻止了我国社会政策学科的专业化和本土化。应该加强社会政策研究方法体系的建设,促进社会政策学科的成熟,为社会政策的理论与实践提供研究工具上的支撑。     

Environmental Reporting of Global Corporations: A Content Analysis based on Website Disclosures

Today, more corporations disclose information about their environmental performance in response to stakeholder demands of environmental responsibility and accountability. What information do corporations disclose on their websites? This paper investigates the environmental management policies and practices of the 200 largest corporations in the world. Based on a content analysis of the environmental reports of Fortune’s Global 200 companies, this research analyzes the content of corporate environmental disclosures with respect to the following seven areas: environmental planning considerations, top management support to the institutionalization of environmental concerns, environmental structures and organizing specifics, environmental leadership activities, environmental control, external validations or certifications of environmental programs, and forms of corporate environmental disclosures.     

产品类别视角企业微博互动内容策略的差异性研究

本文基于产品的实用性和享乐性分类视角,按照内容将企业微博互动策略分为社会性和任务导向型两种类型,并以此为依据对企业微博互动策略进行内容分析,探究不同产品类别的企业微博互动策略效果。研究表明,实用性产品和享乐性产品在企业微博互动内容策略及效果上存在差异,以此为企业有效开展微博营销提供理论依据与实践参考。     

滚筒洗衣机噪声分析

本文具体针对全自动滚筒洗衣机,研究其在脱水状态下以每分钟1200转运转时所产生噪声的成因,接着提出三个改进方案,然后重新研究改进方案产生的噪声大小,以此验证改进方案的有效性。本文采用CFD软件FLUENT对所有模型进行模拟仿真分析。因为是搅拌模型,所以具体计算时采用动参考系法（MRF）进行计算。通过研究发现加强筋结构会造成涡流气流,是导致噪声问题的主要成因。在各个改进方案中,填充外围第四和第五圈栅格的方案被验证为最佳方案,既起到减噪效果又能节省填充材料。     

TV Ratings and Verbal and Visual Sexual Content in Promotional Ads

Promotional advertisements from the February 2003 sweeps were content analyzed for verbal and visual elements of sexual content. Nearly one-third of the promos contained some aspect of sexuality, which represented an increase over previous years. Duration of the visual aspects of the promos did not predict exposure to the programs advertised, as measured by Nielsen ratings. However, intensity of the sexual content significantly predicted exposure to programs, but only after removing the effects of frequency on ratings.