WSN中基于网络编码的协同点对点信息交换算法研究

针对无线传感器中的节点调度传输问题,提出了一种基于网络编码的协同点对点信息交换算法。由于该算法不仅能够充分利用无线信道的广播特性,而且使用了协同点对点信息交换,从而有效地弥补了PIE算法在数据包的个数大于节点数目的情况下,性能不理想的缺陷,实现了传输次数的减少。仿真结果表明,所提算法的传输有效性明显地优于PIE算法和最少优先算法。     

四川秦巴山区特色农产品加工产业集群发展建议

四川秦巴山区资源丰富,生态环境优越,特色农产品加工产业近几年得到了一定发展。简述了四川秦巴山区特色农产品加工的发展现状,分析了农产品加工品牌建设滞后、企业规模偏小、加工方式粗放、质量安全隐患高等问题,这些因素成为特色农产品加工产业集群发展的重要障碍。为此,提出了以集群模式来规划发展产业,增加产业的整体竞争力的战略思路,并从企业发展、人才培养、平台建设等方面提出相应的对策建议。     

海洋经济信息资源的共享与保护研究

海洋经济信息资源是海洋资源规划、管理、保护和合理利用的基础信息,是国家重要的基础性、战略性信息资源之一。然而,"共享"与"保护"之间的矛盾性造成了我国海洋经济信息资源管理缺乏协调性、统一性,因此需要开展海洋经济信息资源统一化、标准化管理,加快实施海洋经济信息资源的共享关键技术,建立海洋信息共享机制,建立海洋经济信息资源的安全管理体系,积极参与海洋经济信息资源共享的国际合作。     

User-generated product reviews on the internet: the drivers and outcomes of the perceived usefulness of product reviews

This study examines how people cope with the user-generated product reviews (UGPRs) found on various websites where anonymous web users post and share their personal product usage experiences. Based on information processing model of communication, we postulate that there are source, message, media, and receiver factors to influence individuals' psychological processing of the UGPR messages, and its subsequent behavioral outcomes. A survey was administered by a professional market research firm to 262 randomly selected US residents from 18 to 55 years old. Consistent with the predictions, the results of the structural equation modeling analysis showed that the perceived source expertise, message objectivity, website credibility, and receiver–source similarity had positive and direct impacts on the perceptions of UGPR usefulness, which, in turn, positively influenced individuals' willingness to share product reviews with others. A series of causal model invariance tests also confirmed that the findings were statistically invariant across different subgroups divided by such factors as product categories, websites, subjective product class knowledge, past UGPR experience, and the susceptibility to informational influence.     

Customer perceived value,satisfaction, and loyalty: the role of willingness to share information

This study proposes and tests an integrative model to examine the relationships among customers’ willingness to share information, satisfaction, perceived value, and loyalty in a retailing context. This study extends research on customers’ willingness to share information from trust and privacy concerns toward key outcome measures such as perceived value, customer satisfaction, and loyalty, and is thus among the first to model customers’ willingness to share information with companies in robust theoretical retailing frameworks. The proposed relationships were tested using data from two retailing contexts – groceries (N = 429) and do-it-yourself (DIY) (N = 895). Findings from the two samples suggest that both perceived value and satisfaction are significant determinants of customers’ willingness to share information with a company. Although some differences emerge in the two studies, structural modeling largely supports the hypothesized framework and positions customers’ willingness to share information as an important antecedent of their loyalty intentions and behavior. This study provides practitioners with preliminary insight into the relationship between willingness to share information and perceived value, customer satisfaction, and customer loyalty. This study advances retailing research, as it is one of the few empirical studies investigating the role of customers’ willingness to share information in driving loyalty and its relationship with perceived value and satisfaction in a retailing context.     

Entrepreneurial intention and startup preparation: A study among business students in Malaysia

Intention, as the starting point of pursuing self-employment and creating new ventures, is crucial before actually establishing a business enterprise. Entrepreneurship is understood to be an essential ingredient for enhancing a country's economic competitiveness, growth, and sustainability while confronting the escalating challenges of globalization, such as increasing unemployment. This study provides empirical evidence on the factors influencing entrepreneurial intention and startup preparations among university students in Malaysia. The findings provide scholars and academic policymakers with insights into the effectiveness of Malaysia's entrepreneurial education as designed and practiced by public universities. The Malaysian government should apply these findings to fortify existing policies and programs and formulate new ones to support graduate entrepreneurs, while universities and other higher education institutions should provide high-quality entrepreneurial courses and programs to young Malaysians to foster an inclination toward entrepreneurship.     

公务员培训管理理念及战略组合研究

作为“公务员培训特色研究”课题的总论 ,文章的基本观点是 :从教学管理过程来看 ,培训教育是一个可以“交换”的产品 ,围绕这一产品的开发 ,构成了培训环境分析 (SWOT)、培训管理人员管理、培训岗位需求调研、培训目标对象细分、培训实施、培训监控等几个主要环节的战略管理过程。     

会计信息系统与会计理论

随着市场竞争日益激烈,企业对会计信息的需求越来越高,我国计算机会计信息系统的开发研制已由核算型转向管理决策型,以满足企业的需求,同时使会计理论得到进一步完善。     

图式理论及其在阅读教学中的应用

根据图式阅读理论,读者的阅读能力由三种图式构成:语言图式、内容图式和结构图式;阅读的过程是读者在语篇水平各个层次上的自上而下和自下而上两种信息处理方式相互作用的过程。提高学生的阅读能力,应注意加强综合阅读、语言图式,利用语篇和文化背景知识进行阅读教学。     

我国政府审计存在的问题,原因及制度对策

我国现行政府审计体制存在着一些缺陷和弊端,不利于审计机关独立行使审计监督权,应适时建立直接隶属于最高权力机关的政府审计监督系统;实行高级审计管理人员和高级审计人员轮换制度;实行独立于本级政府控制的经费预算。