多用途低品位矿利用的经济分析

应用机会成本的原理分析了具有多用途低品位矿的最优利用问题，同时应用成本收益比较法,建立了多用途低品位矿利用的临界品位的经济分析模型，并给出了一个应用案例。     

Accounting information and the valuation of Seasoned Equity Offerings (SEOs)

This study investigates the association between publicly available information disclosed in the SEO prospectus and offer prices of SEOs, as well as the association between this type of publicly available information and stock returns subsequent to an SEO after controlling for self-selection bias. The empirical evidence shows that disclosure of the planned uses of the SEO proceeds reveals value-relevant information which has been incorporated by the underwriters in setting the offer prices. Control for self-selection bias appears necessary to obtain unbiased estimates in the regression model explaining the determinants of offer price in SEOs.     

基于B／S结构的港口物资采购管理网上报价的研究

基于B／S结构的物资管理系统网上报价功能不仅实现了供应商供货信息的统一管理，同时具有经济性高、保密性好、易于维护、方便使用和易于扩大业务范围的优点。     

An Exploratory Study of Convention Specific Social Media Usage by Attendees: Motivations and Effect of Generations on Choice of Convention Information Source and Intention to Use Mobile Application

While social media and mobile devices have grown as important tools of communication and marketing in the meeting industry, limited research has explored convention attendees’ perception of convention specific social networking media and what the motivations are for attendees’ adoption of using convention specific social media. This study aims to identify convention attendees’ motivations of using convention specific social media and demands of convention specific mobile applications. This study also investigated how attendees’ generation affects their selection of convention information sources and attitude toward mobile applications. Based on the identified key motivations of using convention specific social media, convention organizers need to build social media that provide up-to-dated convention information as well as a functionality of building community among attendees. The findings also show that generation affects the choice of convention information source and intention of mobile applications usage. This study identified the most demanded convention mobile applications including, exhibitor directory search, convention floor plan, and convention itinerary planner. This study can be used as a basis for more extensive examinations of the use of social media in conventions and for empirical testing of convention attendees’ attitudes toward convention social media and mobile applications.     

Valuing instream and riparian aspects of stream restoration – A willingness to tax approach

Streams provide a variety of ecosystem and recreational services. Several studies have documented that the public often has a strong willingness to pay for stream restoration, however, many do not distinguish between the values for different types of uses of restored streams. Given that stream restoration can include a variety of actions both instream and along streambanks, which differ widely in terms of cost, it is important to distinguish between such benefits. Taking Israel as a case study, this paper uses an approach based on respondents’ willingness to allocate tax monies in a choice modeling framework to evaluate the relative priorities that the public assigns to instream versus land-based uses of stream areas. In Israel, some rehabilitation of streambanks and riparian areas has occurred, but much less progress has been made on instream improvements, which would demand allocation of water, a scarce and pricey resource in the region. Respondents indicated a slight preference for land-based uses. Greater familiarity with streams was associated with higher utility from land uses. This indicates that less costly rehabilitation of land along stream banks is a reasonable first step for policymakers to take, before attempting more costly efforts requiring allocation of instream flows.     

Proximity analysis of inefficient practices and socio-spatial negligence: Evidence,evaluations and recommendations drawn from the construction of Chotiari reservoir in Pakistan

In this study, we have used qualitative data from land-use conflicts for a development-related infrastructure project based on the case of Chotiari reservoir in Pakistan. Our results primarily highlight the networks of stakeholders involved in making the decisions for this project and their opposition to the desires of the local population, leading to significant tensions and conflicts due to the superposition of land-use expectations in the project area. Through this research, we have identified the key groups of actors and their logics, links and behaviors in terms of multi-level governance (from community level to international level) and territorial governance, thus revealing the positions of stakeholders and their relative social power. We show how public authorities have disregarded international rules and laws in undertaking a development project, and caused great damage to local populations and environmental resources. This article aims to provide useful information and insights for recommendations to help prevent and resolve land-use conflicts, principally on the basis of an analysis of proximity relations.     

高校图书馆和院系资料室信息资源共建共享联盟

综述高校图书馆和院系资料室的优劣势比较,高校图书馆和院系资料室文献资源共建共享的实施对策;共同提供联合目录服务、一卡通服务。     

Evaluating Instream Flows for Recreation: Applying the Structural Norm Approach to Biophysical Conditions

Instream flow can affect recreation quality and is a major issue on rivers where humans manage flows through dams and diversions. The structural norm approach offers a theoretical and methodological model for collecting, organizing, and analyzing evaluative information that relates flow and recreation quality. This article reviews work from several flow-recreation studies that have used this approach, extending it beyond social impact contexts and illustrating its adaptability to other natural resource issues. The article reviews the general structural norm approach and how it has been adapted to examine instream flows for recreation, and provides a list of studies that have utilized it. A review of methods issues describes study types, question formats, and purposive sampling. A review of key findings focuses on incremental relationships between flows and recreation quality, differences in evaluations by craft, skill level, or type of opportunity, the concept that recreation opportunities occupy niches in the flow regime, and emerging hypotheses about relationships between flows and aesthetics.     

Chinese consumer response to imported fruit: intended uses and their effect on perceived quality

Though imported fruit sells in China for many times the price of its local equivalent, and sometimes at prices higher than in developed countries, there are still many willing buyers. Previous reports argue that this purchase behaviour is impelled by the perceived high quality of imported fruit. However, perceived quality itself cannot explain this behaviour comprehensively without examining the intended use behind the decision to purchase. In this research we examined the relationships between intended use and people's perceptions of fruit quality. After convergent interviewing, an intercept mail survey of 1000 consumers was conducted in two different Chinese cities, Guangzhou (highly developed) and Urumqi (relatively undeveloped). The research identified five intended uses of imported fruit, each associated with different functions. Statistical analysis showed that intended use did affect people's perceptions of fruit quality, and that a significant difference exists between the two investigated cities in terms of the relative importance of the five intended uses. Results from this study could help to better understand why Chinese consumers purchase imported fruit and the interrelationships between quality attributes and intended uses. Such an understanding would be significant in developing strategies and policies in marketing imported fruit in China.     

Windows系统注册表的构成及用法

Ｗｉｎｄｏｗｓ操作系统是目前最流行的微机操作系统，已成为各类大中专学校学生的必修课。注册表是Ｗｉｎｄｏｗｓ系统中非常重要的内容，但各类教材介绍甚少。此文详细剖析了注册表的构成及用法