基于供销合作社现状的损益分配研究

近几年来由于内外原因,我国供销合作社的发展遭受较大挫折,表现在购销业务下降,农村市场占有率逐年递减,经济效益严重下滑。本文从我国供销社的损益分配现状入手,在回顾相关理论及文献的基础上,通过我国与美国供销社损益分配的比较研究,分析了我国供销合作社损益分配存在的问题及其成因,最后结合我国供销合作社损益分配的现状,提出一些相关对策。     

基于单元星形光纤网的最大总光程及其求解方法

研究了单元星形光纤网中,最多光路数目与最大允许光链路损耗间的关系,推出了在给定最大允许光链路损耗、不同光路数目时各路总光程的求解方法,进而得到最佳光路数目与最大总光程,最终得出六条结论。     

A Comparative Analysis of Auditor, Manager and Financial Analyst Interpretations of SFAS 5 Disclosure Guidelines

This study examines empirically whether financial analysts (users), as well as managers (preparers) and external auditors ascribe different interpretations to the SFAS 5 disclosure criteria. We find: (1) financial analysts are, on average, more conservative than managers and auditors in their numerical interpretations of both the 'remote' and 'probable' verbal phrases; (2) managers and auditors share very similar numerical interpretations of these verbal phrases; (3) audit partners' numerical interpretations of the 'remote' region are between those of managers and users, whereas audit managers align their numerical interpretations with those of managers. One danger is that preparers of financial statements may omit loss contingency information that users consider valuable.     

Mobile technology usage and B2B market performance under mandatory adoption

This paper investigates the relationship between mandatory adoption of mobile information technology and market performance in the business-to-business (B2B) setting. This study presents and tests the B2B technology satisfaction model (TSM), including perceived loss of control as the mandatory technology acceptance-specific variable. The results of this study reveal that integrating perceived loss of control with user satisfaction and the TAM (technology acceptance model) in a single model can better explain the B2B market performance model. The empirical results suggest that perceived loss of control has a negative effect on user satisfaction and perceived market performance is influenced by user satisfaction and perceived usefulness. Managerial implications of the study are discussed.     

浅论模糊美感在汉英翻译中的磨蚀

汉语区别于英语的根本之处在于其模糊性，因其意合神会，华美流散及意境性的语言赋予读者丰富的想象空间和模糊美感。由于汉英语在表现形式、语言应用及审美价值方面都存有显著差异，因而造成汉语中诸多美感要素在英译中磨蚀，本文对此进行讨论，希望藉此引发对模糊语言翻译的思考。     

Poisson Regression for Clustered Data

We compare five methods for parameter estimation of a Poisson regression model for clustered data: (1) ordinary (naive) Poisson regression (OP), which ignores intracluster correlation, (2) Poisson regression with fixed cluster‐specific intercepts (FI), (3) a generalized estimating equations (GEE) approach with an equi‐correlation matrix, (4) an exact generalized estimating equations (EGEE) approach with an exact covariance matrix, and (5) maximum likelihood (ML). Special attention is given to the simplest case of the Poisson regression with a cluster‐specific intercept random when the asymptotic covariance matrix is obtained in closed form. We prove that methods 1–5, except GEE, produce the same estimates of slope coefficients for balanced data (an equal number of observations in each cluster and the same vectors of covariates). All five methods lead to consistent estimates of slopes but have different efficiency for unbalanced data design. It is shown that the FI approach can be derived as a limiting case of maximum likelihood when the cluster variance increases to infinity. Exact asymptotic covariance matrices are derived for each method. In terms of asymptotic efficiency, the methods split into two groups: OP & GEE and EGEE & FI & ML. Thus, contrary to the existing practice, there is no advantage in using GEE because it is substantially outperformed by EGEE and FI. In particular, EGEE does not require integration and is easy to compute with the asymptotic variances of the slope estimates close to those of the ML.     

低综采工作面远距离供电及供液设计与应用

为了解决低综采工作面设备列车的布置及拉移等问题,设计了远距离供电及供液方案。从设备选择、电压损失及供电安全性等方面校验了远距离供电的可行性,从压力损失及压力脉动等方面校验了远距离供液的可行性。经实际效果检验,1600m远距离供电、1350m远距离供液安全可靠。     

结构失衡、供给约束与农产品涨价

近年来我国农产品价格大幅上涨,民众生活压力骤然增大.究其根源,见仁见智.文章认为,中国社会经济结构发展失衡是导致农产品价格大幅上涨的主要原因.多年来,受“重工轻农”思想观念的主导,各级政府以牺牲“三农”来支撑高速工业化和城市的快速扩张,导致了耕地面积和“职业农民”的锐减,农产品的生产能力严重不足.因此,必须修正宏观经济政策,加强农业的基础地位.     

Robust grain supply chain design considering post-harvest loss and harvest timing equilibrium

This paper presents a bi-level robust optimization model, where a food company maximizes its profit and minimizes post-harvest loss by optimally deploying grain processing/storage facilities and determining grain purchase price, while a group of spatially distributed non-cooperative farmers determine harvest time, shipment, storage, and market decisions under yield uncertainty and market equilibrium. The non-cooperative behavior of the food company and the farmers is represented by a bi-level Stackelberg leader follower’s game model with mixed-integer decision variables. The proposed model and solution approach are applied to case studies for Illinois and Brazil.     

制热的新途径——液力冲击制热

文章介绍了一种国内外尚无先例的制热的新方法——液力冲击制热。并阐述了它的理论价值、经济意义、实用意义以及能容高的特点。还简要分析了冲击制热的工作原理及计算。