房地产项目开发建设中住宅整体质量问题探析

商品住宅的质量关系着国家的未来和房地产业的兴旺,本文试图对住宅产品的质量现状、问题及成因进行分析,在此基础上提出进一步提高品住宅整体质量的看法:     

中国进口沥青市场分析

分析国内中长期沥青需求，分析我国近十年的沥青进出口状况及主要进口国的产销情况，分析影响沥青进口的因素尤其是进口关税对进口量的影响和进口的发展趋势。     

采用B/S架构设计与实现超市配送系统

系统采用B/S架构。整个系统由六大模块构成,分别是人员基本信息管理模块、商品信息管理模块、连锁店管理模块、商品入库管理模块、商品配送管理模块、退出系统模块。整个系统能够独立运行,使用方便,能够及时地分析企业进销存情况,提高工作效率,能给企业带来更大的利益。     

Alternative technologies for biotechnological fuel ethanol manufacturing

The challenges of implementing biorefineries on a global scale include socioeconomic, financial, and technological constraints. In particular, the development of biorefineries is tightly linked to the continued availability of fermentation raw materials. These constraints can be relaxed by the use of diverse raw materials, while advances that confer higher flexibility would enable biotechnological plant managers to swiftly react to volatile markets. In conventional processes, Saccharomyces cerevisiae grows on a relatively limited range of substrates, and produces only a single product—ethanol. Given the observed maturity of the S. cerevisiae fermentation technology, alternatives to baker's yeast may be needed to tip the economic balance in favour of biotechnological ethanol. These alternative fermentation technologies may allow a greater diversity of substrates to be used to produce an individually tailored mix of ethanol and other chemicals. Copyright © 2007 Society of Chemical Industry     

基于距离衰减和评分趋势改进的协同推荐算法

针对传统推荐算法忽略了用户到商品的距离因素以及评价标准不一致对推荐系统带来的影响等问题,提出一种基于距离衰减和评分趋势改进的协同推荐算法,引入距离衰减和评分趋势算法对协同推荐进行改进。实验结果表明该推荐方法不仅能够提高商品推荐准确度,同时也减少了推荐系统计算规模并提升算法效率。     

An approach to mining bundled commodities

Although bundled commodities are largely existed in supermarket, there are few investigations about bundled commodities mining. In this study, interval-valued association rules as a novel and possible approach to solving the bundled commodities mining issue, is proposed. Properties research based on interval-valued association rules is conducted, and an interval-valued rule pattern: F, ,  is constructed, where F denotes set of interval-valued ruses, and denote the disjunctive operation and conjunctive operation, respectively. Furthermore, one of the properties satisfied by the interval-valued rules: A  C = B  C and A  C = B  C  A = B, where A, B, C are there different rules, is validated and utilized to mine the bundled commodities. Finally, a large-scale software engineering project relative to interval-valued rule mining is implemented to merge flight testing information about aircrafts which validates the technique of mining bundled commodities can be discovered a special relation between objects. These initial investigations provide a researchable framework for bundled commodities mining.     

对新时期城市商业网点规划建设的探讨——以安庆市为例

新时期，城市商业网点的建设步伐如何与各城市规模、人口的迅速膨胀相适应是当前各城市任城市建设过程中遇到的一个难题，本文从商业网点建设的任务分析着手，总结了当前大多城市的商业网点建设的现状特征，作了居民购物消费的趋势分析，提出当前城市商业网点规划建设的适用思路，并据此提出各类商业网点规划建设导引的建议。     

泵送商品混凝土裂缝的防治

在泵送商品混凝土施工中，普遍存在混凝土裂缝等质量问题。分析了裂缝产生的原因并提出了预防裂缝产生和对裂缝处理的具体措施。     

技术商品的价值与价格模型研究

技术商品是一种特殊商品 ,它与一般商品相比有着许多特殊性。从技术商品的概念入手 ,分析了技术商品的特征 ,并将其按照技术的研究对象和应用效果及技术所应用的行业不同进行了分类。阐述了技术商品的价值和使用价值 ,论述了技术商品的价格形成。利用Cobb -Douglas生产函数 ,构造出了技术商品的价格模型。说明技术商品的价格决定于技术商品的影子价值和其消费风险