污水管段设计流量的图论解析

针对污水管段设计流量计算中较易出现理解偏差与计算错误的问题,引入图论的方法,用节点与管段的关联关系对污水管道节点流量和管段流量进行定义并求解,明确了相关物理概念的界限,能使计算思路清晰,便于理解记忆。     

国产手机行业发展的金融对策研究

文章在分析国产手机竞争、盈利模式等方面介绍当前国产手机现状的基础上,通过长虹手机为代表的国产手机和国外高端机在投入、方向等方面进行对比,找出存在的问题,并针对当前国产手机的存在的问题,提出相应的金融性对策。     

China’s Agricultural Policy Transition: Impacts of Recent Reforms and Future Scenarios

This article reviews recent developments in China’s agricultural domestic support policy, especially the transition from taxing farmers and agriculture to providing direct subsidies to grain production and purchased inputs. A model‐based quantitative analysis on the effects of these policy changes is presented. Simulation results suggest that recent policy changes have achieved the declared policy goals of increasing grain production and boosting farm income. Much of the increase in grain production and farm income can be attributed to higher per unit return to arable land, land reallocation to grain production and extra agricultural employment triggered by the policy changes. Based on the assumption that China’s public assistance to agriculture and farmers will continue and rise, two hypothetical future scenarios are simulated. Using all the support permitted under WTO de minimis limits with existing instruments, China’s policy will increase grain production, change trade patterns seemingly contrary to China’s comparative advantage, increase rural employment and significantly increase farm income (by more than 12%). If, however, decoupled instruments are applied to raise China’s agricultural domestic support to the same level, China’s agricultural production and trade will remain unchanged, rural employment remain stable, but farm income will be increased by nearly 15%.     

基于建立内需主导经济的消费投资关系研究

1998年金融危机以来，我国就开始实施内需主导型经济的战略，此次次贷危机的爆发加快了扩大内需政策的出台。发展内需主导型经济，是确保中国发展战略目标实现、加快中国产业结构升级和改善中国经济发展外部环境的要求。而内需包括国内投资需求和消费需求，要在推动内需主导型经济发展上取得明显效果，必须处理好消费与投资的关系问题。     

协调内外需关系的若干理论思考

内需反映一国的内生增长能力,外需反映一国利用国外市场和国外资源实现增长的能力,内外需关系可以用内外需比指标大致衡量。一般而言,内外需呈现相互替代、相互促进的关系。影响内外需关系的因素包括国内市场规模、经济发展阶段、贸易政策与制度等因素,而内外需关系又将影响到产业结构及产业关联、内外经济循环、贸易条件及国民福利等方面。在协调内外需关系方面,政府应扮演重要角色,确定合理的目标及方向。     

Consumer Behavior and Fish Market Development in Oman

Abstract

Capitalizing on the rich fishing grounds that populate the coastal waters of the Sultanate of Oman is important in that country's economic diversification. Domestic fish markets have been constrained by consumers⁵ habits, which show very strong preferences for fresh fish over other processed forms. This study relates fish market and product development to consumer habits, perceptions, income, and other demographic and socioeconomic factors. Educational attainment and rural/urban households demonstrated the strongest relationships to likelihood of Omani fish choice by species and form. Income group, importance of price, and price expectations were significant influences on fish variety and form consumption, as were attitudinal choice characteristics, such as place of purchase, fish product characteristics, and spousal purchasing decision. Rural households and household size affected the odds of Omani consumption of fresh fish negatively.     

浅谈公路中央分隔带排水设计

阐述了中央分隔带类型、分类以及排水不畅带来的危害,较全面地介绍了直线段和超高段中央分隔带排水设计。     

Comparative Advantage Indices of Selected Livestock Production Sectors in Brunei Darussalam

Abstract

This study calculates the protection rates and comparative advantage indices of livestock industry in Brunei from an import substitution perspective. Four livestock sub-sectors were being evaluated: broiler, layer, goat and beef cattle. Two measures of government intervention indices were calculated, namely nominal protection rate (NPR) and effective protection rate (EPR). Domestic resource cost (DRC) and resource cost ratio (RCR) indices were computed to determine the comparative advantages of the livestock industry. In general, the results indicate that the livestock industry in Brunei was heavily protected. The study revealed the existence of comparative advantage only for very large farms producing poultry meat and eggs. Similarly in the ruminant sector, goat production appears to have comparative advantage over beef cattle. Small and medium poultry farms and large non-ruminant farms and cattle beef production possess comparative disadvantage despite being highly protected industries.     

新建传染病医院污水处理工程设计要点

医院污水排放直接影响周边环境,在设计新建传染病医院污水处理方案时应抓住一些要点进行。为此,本文做了一些设计方面的探讨。