配电自动化系统及其运行管理分析

文章结合对配电自动化系统的功能与优势的分析,针对配电自动化系统信息管理、安全管理和运行管理模式等进行了深入的阐释与分析。     

任务驱动型教材编写的研究与探索

培养职业能力的职业教育,需要按教学规律,将相同、相近的各项专业技能知识进行总结、归纳,构成不同的教学模块,并依此来组织教材,实施教学。作者结合广州港技工学校《物流机械设施与设备》任务型教材编写的实际,教材编写中体现"任务驱动,行动引导",实施PIPA教学。并提出任务型教材编写的必要性及编写基本思路流程。     

Profit‐sharing plans and affective commitment: Does the context matter?

This article analyzes the relationship between profit‐sharing plans (PSP) and affective commitment and how it is affected by the context of the PSP application. Overall, there is a positive relationship between profit sharing and commitment that is strongest in very small firms. The efficacy of a PSP in improving employees' affective commitment appears to be greatest in firms with low job‐related employee participation. Its application in workplaces where employees enjoy high levels of participation appears to have little impact and may even result in slight declines in affective commitment. © 2009 Wiley Periodicals, Inc.     

新一轮退耕还林对农户收入影响的机理研究 ——基于赣南、鄂北农户调查的实证分析

研究目的：新一轮退耕还林补助资金即将到期之际,分析新一轮退耕还林对农户家庭收入的净效应并揭示其内在机制。研究方法：理论上阐述了新一轮退耕还林政策促进农户收入增长的作用机理,基于赣南、鄂北地区农户调查数据,利用倾向得分匹配法进行实证分析。研究结果：（1）无论是否包含退耕补贴,新一轮退耕还林政策对农户收入有正向影响;（2）退耕林种对农户收入的作用机理不同：种植经济林的农户增加了林果业收入和非农经营收入,减少了工资性收入;种植生态林的农户通过提高工资性收入,进而提高总收入水平。研究结论：新一轮退耕还林加快了农户生计转型的进程。政策实施5年后,农户形成与生态环境相适应且稳定的生产方式,为补偿政策的逐步退出创造有利条件,实现了新一轮退耕还林政策的造血功能。     

从《关于林木盗窃法的辩论》看马克思的森林立法观

马克思的森林立法观是在批判资产阶级法制的基础上提出的。马克思运用利益分析的方法,揭露了资产阶级森林立法的本质,指出林木所有者的私人利益是资产阶级森林立法的灵魂,林木所有者的私人利益败坏了森林立法的正义品格,从而主张森林立法应以人为本,以社会为本,以公益为重心,坚持普遍联系的思想。     

Relational,Functional Benefits and Customer Value in Large Retailing: A Cross-Format Comparative Analysis

ABSTRACT

Based on the existing marketing concept on relational and functional benefits and on the retailing management of customer value, the present research empirically tests the influence of these customer benefits by providing a comparative analysis for different retailing formats, such as supermarkets and hypermarkets. Using questionnaire data for a sample of customers (N = 362), the authors developed structural equation modeling. This study identifies the factors influencing customer value, as well as the key to understand the relationships of customer benefits, customer value, loyalty, and purchase intention in the retailing service context. The contribution of the present research includes empirically testing a conceptual model, by developing a comparative analysis, along with providing some meaningful insights to retailing managers on how to strategically manage customer value variables to increase and enhance customer retention and purchase intent.     

Tidal river management for sustainable agriculture in the Ganges-Brahmaputra delta: Implication for land use policy

The tidal river management (TRM) approach is an indigenous management practice in the Southwest part of the Ganges-Brahmaputra delta in Bangladesh. This approach has a high potential for extending area under agriculture with a positive impact on sustainable production and consequently on sustainable land use planning. Until recently, no studies provide a quantitative assessment on agricultural benefits of TRM operation. In this study, we aim to assess the benefits of TRM operation by using innovative approaches such as comparing land use change, agricultural production and economic cost-benefit analysis for two scenarios (with and without TRM) in the Hari-Teka-Bhadra catchment. We found that the financial benefit of TRM operation was 85.5 million US dollar per year from the agriculture sector. The results are useful for promoting land use policy through TRM approach in achieving greater sustainability in the area.     

Erosion mitigation in the Waikato District,New Zealand: economic implications for agriculture

Soil erosion, in its various forms, is caused or aggravated by agricultural activities. Mitigation of surface erosion comprises the construction of shelterbelts, fencing, riparian buffering, and stock reduction. Mitigation of mass‐movement erosion, in turn, takes the form of spaced planting of trees to maintain a persistent, healthy, and complete ground cover. In this article, we assess the economic implications to agriculture of the adoption of mitigation alternatives for erosion control in the Waikato District, New Zealand. The Waikato District presents a spatial pattern of erosion that affects profitability of dairy, and sheep and beef enterprises. We use the Universal Soil Loss Equation and the New Zealand Empirical Erosion Model to estimate erosion figures that are then fed into an economic‐focused, nonlinear, partial equilibrium mathematical programming model of New Zealand land use. Different scenarios are constructed for surface and mass‐movement soil erosion targets ranging from 0% to 50% below baseline levels. We find that achieving surface erosion targets is more expensive than mass‐movement targets, and results in different responses in regional‐level costs, land use, enterprise net revenue, and adoption of mitigation alternatives.     

福建省生态公益林碳汇经济效益影响因子研究

根据对福建省6个样本县进行样地调查及其农户访谈式问卷调查的资料,首先应用因子分析法对影响福建省生态公益林碳汇效益的主要因子进行分析,然后将碳汇效益与主要因子进行逐步多元回归分析。结果表明:坡度、林龄、树种、蓄积量、碳汇量、重置成本、降水量、碳汇价格是影响福建省生态公益林碳汇效益的主要因子;碳汇价格、蓄积量和重置成本对福建省生态公益林碳汇效益影响显著;碳汇价格、蓄积量与碳汇效益呈正相关,重置成本与碳汇效益呈负相关。     

高γ-氨基丁酸保健茶研究进展

近年来,高 γ-氨基丁酸茶的保健功效日益引起各界的广泛关注.γ-氨基丁酸具有促进睡眠、缓解焦虑、治疗糖尿病和哮喘以及提高记忆力等多种保健作用.本文综述了高γ-氨基丁酸茶的保健作用、富集方法和γ-氨基丁酸测定方法的最新研究进展,同时指出高γ-氨基丁酸茶在开发推广中仍存在的问题,展望了其前景,以期为高γ-氨基丁酸保健茶的进...