BP神经网络在地下水环境质量评价中的应用

基于模糊综合评判和灰色聚类法的不足,应用神经网络理论与方法建立地下水环境质量评价B—P网络模型,对磐石市的地下水进行评价,并与综合评价法的评价结果进行了比较。结果表明：用B—P神经网络模型评价地下水是可行的,该模型具有很强的学习、联想和容错功能,其分析结果和过程都接近人脑的思维过程和分析方法．使得地下水评价结果的精度大大提高。     

THE EVALUATION OF PROTEIN QUALITY IN MIXTURES OF PLANT PROTEINS

This paper considers the use of plant protein as an alternative or supplement to animal protein in the attempt to balance the world's protein supply with the increasing world population. The evaluation of the quality of plant proteins using chemical and mathematical methods is considered. The paper shows how plant proteins can complement each other when combined in recipes developed with the aid of a computer programme.     

个人网店网络营销存在的问题及发展对策

伴随电子商务飞速发展,个人网店越来越多,但成功开展网络营销的却很少。本文在对个人网店界定的基础上,分析了个人网店网络营销存在的问题,提出了个人网店网络营销发展对策。     

皮革中甲醛含量测量不确定度评估

依据ISO/TS 17226国际标准,测定了皮革中的甲醛含量,对测量过程的不确定度来源进行了分析和评定,并计算出合成不确定度和有效自由度,最后根据JJF1059规范要求给出了甲醛测量不确定度表达式.     

电子商务物流取货自提店模式分析

本文重点分析自提店式物流取贳模式，即客户在网上下单后，卖家将客户所选商品送到指定的自提店，客户在方便时自行提取的物流配送模式，认为自提店可以由电子商务企业、第三方物流公司或专业的第四方构建，包括固定点式自提店和便利店式自提店两种形式，并对其选择理由和构建对策进行分析。     

浅析色彩心理学在网络营销中的作用

网络营销可以大幅度的降低成本,利用网站的形式也可多方位的展示企业形象,成为重要的交际和销售的工具。在各种复杂的网络营销手段中,色彩的运用越来越多,成为差异化品牌策略、摆脱同质化竞争、提高产品附加值的重要手段。随着网购市场的迅速膨胀,网上竞争也越来越激烈,除了一些原有要求之外,顾客还需要一个像实体商店一样的良好的购物环境。本文着重说明色彩的心理效应在网络营销中的重要地位,帮助网络商店更好的争取客户,研究结果具有一定现实意义。     

THE USE OF SOCIAL NETWORK ANALYSIS IN LOGISTICS RESEARCH

This paper introduces and provides an overview of social network theory and social network analysis (SNA) and its potential applications to logistics and supply chain management research. It then provides an example of the use of SNA via the introduction of hypotheses related to informal and formal structure and influence within a social network. These hypotheses are tested within the context of the development and implementation of a complex reporting system that evolved as the result of warehousing safety and environmental concerns within an organization.     

STRATEGIC MANDATORY LABELING OF BIOTECHNOLOGY PRODUCTS IN THE ABSENCE OF QUALITY DIFFERENCE

This article examines the strategic use of mandatory labeling of biotechnology products, such as genetically modified food. A foreign dominant firm produces a biotechnology product and foreign competitive firms produce a conventional one. It is shown that if other trade measures such as tariffs are also available, the government of an importing country may impose mandatory labeling even in the case where there is no quality difference between biotechnology and conventional products. A combination of a discriminatory tariff on the biotechnology product and mandatory labeling shifts rents from the foreign dominant firm to the domestic economy.     

EMPIRICAL SUPPORT FOR AND THE EVALUATION OF AN INTERVENTION MODEL FOR ELDERLY CONSUMERS*

This paper reports the development and evaluation of a consumer education intervention model for elderly consumers. Data on the consumer decision making patterns of married elderly were analysed to ascertain the correlates of a specialized or syncratic decision pattern. No differences were found relative to the type or intensity of consumer problems. Additionally, no support was observed for a resource theory of consumer decision-making power. T-test and analysis of covariance suggested that the educational model was effective. Suggestions for future research are offered.     

原子荧光光谱法测定肉类罐头中总砷含量不确定度的评定

对原子荧光光谱法测定肉类罐头中总砷含量不确定度进行评定。分析了产生不确定度的主要来源,以咸牛肉罐头为例,分析了整个测量过程产生的不确定度,取包含因子为2得扩展不确定度为0．002mg／kg,总砷含量的标准不确度最终结果为（0．024~0．002）mg／kg。为有效地控制用该方法测定肉类罐头中总砷含量的质量提供可靠的理论依据。     

政治经济学社会主义部分中方法论的应用

马克思主义政治经济学资本主义部分和社会主义部分中都应用和贯彻了以唯物辩证法为根本的方法论体系。但由于各自运用方法所加工的社会主体以及所探索的社会经济运行规律的特殊性,这两个理论部分的具体内容和范畴体系必然存在明显区别。在政治经济学社会主义部分中,由于是以唯物辩证法为根本,形成贯彻始终的理论主线,以主体的方法为前提,从中国现阶段的状况和发展需要出发实事求是地构筑理论内容,以抽象法为手段,合理的将各种发展因素予以保留,由此而形成的理论应当是一部具有中国特色的“建设的经济学”。     

整合理念在旅游开发中的应用

应用“整合理念”进行旅游开发,旅游开发的过程实际上就是现有资源的整合过程。本文开篇探讨了资源整合的理念,接着分析了旅游开发过程中要树立整合理念的动力机制,最后提出了旅游开发过程中整合理念的应用方式。     

云计算在区域物流中的应用初探

本文通过分析区域物流中各利益相关体面临的问题及对区域物流信息平台的诉求,作者提出了基于云计算模式的智慧物流平台的框架,同时讨论了区域物流信息平台的建设运营模式,为区域物流信息平台的规划建设提供了参考。     

CONVERGENCE OF BARRIER OPTION PRICES IN THE BINOMIAL MODEL

In this paper, we study the rate of convergence of the European barrier call option price given by the CRR binomial model to the Black–Scholes price as the number of periods n tends to infinity. In general the error is of order and we give explicit formulas for the coefficients of and 1/n in the asymptotic expansion of the error. These coefficients depend on the positions of the barrier and strike in the binomial lattice and enable us to give a rigorous explanation of the observed fact that the error is of order 1/n when n is chosen in an appropriate way.     

THE EFFECT OF THE TRANSFER IN A TWO-CLASS MODEL

Hamada showed that the income transfer from capitalists to workers does not increase the income of workers in the long run. His result is based on the nonlinearity of the saving functions. If the saving function of capitalists is concave (or convex), the maximum of workers' income is attained by the positive (or the negative) transfer. There exists a case where the after-tax income of capitalists increases by a positive transfer. The global maximum of capitalists' income is attained when workers' income is all transferred to capitalists, while the global maximum of workers' is attained when capitalists enjoy positive income.     

微型多功能进样技术在搪瓷制食具容器中微量锑测定中的应用研究

[目的]建立双毛细管进样,火焰原子吸收法测定搪瓷制食具容器中微量锑的方法.[方法]本文利用微型多功能进样技术(主要装置为双毛细管)详细研究了氢化物发生对锑火焰原子吸收法测定的各种影响因素,通过在线加入KBH4溶液,测定搪瓷制食具容器在4%醋酸浸泡液中的锑含量.[结果]应用本法测定,大大提高了锑的吸收灵敏度,1μg/mL Sb的吸光度可达0.45～0.48abs.并可抑制绝大部分离子的化学干扰.[结论]用双毛细管在线氢化物发生法能快速测定搪瓷制食具容器中微量锑,结果令人满意.     

BOT模式在我国城市污水治理中的应用

随着我国城市化进程的不断推进 ,城市污水的治理逐渐成为摆在人们面前的重要课题。如何改变传统的建设、运营及管理模式 ,引入市场机制 ,提高经济效益和社会效益 ,是解决问题的关键。近年来 ,我国城市污水治理领域的融资模式取得了一定的成绩 ,探索出了一些新的方式 ,其中BOT模式是一个新的发展方向。但我们必须认识到 ,BOT模式的运用还需要一些配套措施 ,如 ,相关法律制度的完善、政府的支持等。     

THE ROLE OF SUBSTITUTION IN WICKSELL'S DURABLE CAPITAL MODEL

In this paper the author shows that the absence of a good which is used directly or indirectly for the production of other goods is a crucial feature of Wicksell's two-sector model, without which a positive relation between the value of machine stock and the consumption good output cannot be guaranteed. In fact he proves that, if that model is generalised by assuming that the capital good is used as an input also in its own production, the sign of the “marginal product of social capital” is indeterminate, even when both sectors have “well-behaved” production functions of a Cobb-Douglas type.