中国重点工业行业空间变化特征

改革开放以来,在政府政策和市场力量的双重推动下,我国产业结构不断升级的同时,工业地图也发生了深刻的变化。选取了1993—2008年来对我国经济增长贡献率最高的四个工业门类：电子信息制造业、钢铁产业、化工产业和汽车制造业。深入刻画了四个行业空间变化的历程及现状分布特征。这四个行业从一定程度上均反映出改革开放以来,我国工业空间分布从＂遍地开花＂到向沿海省份集聚的共性特征。     

依靠技术创新 科学发展煤化工产业

兖矿集团20世纪90年代就已进入煤化工领域,在煤化工产业发展领域积累了很多有益的经验。文章介绍了兖矿集团煤化工产业的发展现状、煤化工技术创新的主要成果及其具体实践,提出兖矿集团煤化工产业"十二五"期间的重点技术研发目标。     

几种纤维的老化特性分析

研究不同纤维的老化现象,得出纤维的降解老化性能差别很大,随着环保意识的提高,不易在自然环境中降解和生物分解的材料应控制生产和使用。环境友好的天然纤维和再生纤维通常对环境影响小,可循环利用,提倡首先使用;而化学合成纤维和化学无机纤维将对环境造成危害,甚至在酸碱热等环境中都不会降解,且原料资源有限,应选择性使用。     

基于AHP-FCE的氯碱化工园区循环经济评价研究

结合氯碱化工园区的实际情况,建立了氯碱化工园区循环经济评价指标体系,运用层次分析法(analytical hierarchy process,AHP)确定了指标体系中各指标的权重,运用模糊综合评判(fuzzy com prehensive evaluation,FCE)理论,建立了氯碱化工园区循环经济综合评价模型,并将这一模型应用于某氯碱化工园区循环经济的综合评价。实例表明:模糊综合评价方法可操作性强,可在氯碱化工园区循环经济综合评价中广泛应用。     

化工物流园区的发展现状及国内外比较分析

化工物流是指与化学品相关的仓储和运输等服务,化工物流的运作复杂、安全性要求高．因此技术要求严格、设备专业化程度高。而物流因区是指为了实现物流设施集约化和物流运作共同化,或者处于城市物流设施空闻布局合理化的目的而在城市周边等各区域。集中建设的物流设施群与众多物流业者在地域上的物理集结地。而化工物流的特殊性要求集中化的经营会取得更经济的效果。文章通过对化工物流园区的特征介绍和我国几个著名化工园区及新加坡化工物流园区的优势比较,总结出比较的结论和发展建议。     

浅谈瓷器的修复工艺

瓷器是我国文物中的瑰宝,从古至今陶瓷器在人们的生活和发展过程中起着非常重要的作用,作为日常生活当中的工具,常有破损,对于瓷器的修复,是对历史的尊重,我们的原则就是尽可能的利用先进的科学技术来还原真实。本文根据多年从事文物保护的经验,分析了常见的瓷器修复技术,文中指出瓷器修复主要的环节为瓷器本体的修复,作色以及做旧等环节,并对根据自己的工作经验对这三个环节具体的工艺进行了探讨。     

危险化学品泄漏事故的混沌动力学特性分析

为探讨如何有效地预防和控制危险化学品泄漏事故,运用混沌理论方法对焦作市某化工厂泄漏事故统计数据进行了时间序列分析和R/S分析,指出危险化学品泄漏事故具有明显的混沌特性。分析和讨论了危险化学品泄漏事故的混沌特性,并对后续短期内可能发生的事故进行了预测。     

不同水稻品种对钒的积累及化学形态

通过盆栽试验,研究了钒（V）胁迫下不同品种水稻植株中钒的积累和化学形态。结果表明,不同品种水稻各器官中V的分布为根＞茎＞叶＞子实,两种水稻品种吸收的V主要富集在根部。水稻生长期新优188水稻各器官中V的浓度均低于十优838水稻,如在V处理浓度为100 mg·kg-1时,在分蘖期、扬花期、灌浆期和成熟期,新优188水稻植株根中V含量分别为73.10、92.56、57.46、57.81 μg·g-1,茎叶中为8.79、4.52、2.13、2.56 μg·g-1;十优838水稻植株根中的V含量为59.14、94.93、88.59、89.70 μg·g-1,茎叶中为4.64、3.66、2.29、3.24 μg·g-1。推断十优838水稻较新优188水稻有较强的V吸收能力。两种水稻品种中,根部V主要以活性较低的盐酸提取态（FHCl）和醋酸提取态（FHAc）为主,茎和叶中V主要以盐酸提取态（FHCl）和水提取态（Fw）为主,认为V在水稻根部多以难溶于水的重金属磷酸盐或草酸盐而被固定,限制了水稻中V转移到茎和叶,从而避免了高浓度V对植物光合作用及其他生理过程的干扰。     

“Standards” as a Service Marketing Tool

Abstract

Standards have the potential to be a significant tool in the marketing of services, just as they have been in the marketing of products. Ranging from regulatory to voluntary, product-based to producer-based, standards can increase the competitive position of a product by reducing customer uncertainty. However, the lack of a framework for understanding and designing standards has limited their application in service industries.

Examination of existing standards suggests a framework of five key dimensions. Through the example of chemical management services (CMS) we show how this can be done, resulting in three options for the CMS industry. Using this framework as a guide, other service industries can determine if a standard would provide significant competitive advantage and, if so, design the optimal standard for their market conditions.     

Means-end chain analysis explains soil fertility management decisions by peri-urban vegetable growers in Kenya

Past studies of the use of soil fertility management strategies by farmers usually model input use decisions based on the neoclassical utility/profit maximization principle in which farmers use soil fertility management inputs primarily to increase revenues and profits. However, there is, to date, no study that explains exactly how this decision-making process occurs and the role which personal values play in driving the choice of soil fertility management inputs. This article systematically maps the relationship between choice of soil fertility management strategy (attributes), its outcomes (consequences) and the personal values that motivate the choice. It specifically uses the means-end chain approach to construct hierarchical value maps that relate the attributes to consequences, and ultimately to the personal values. The study finds that the use of soil fertility management strategies by peri-urban fresh vegetable growers is driven by five personal values, namely happiness, comfortable life, independence, good/healthy life and achievement of life goals. It also finds that while farmers seek to increase profit (hence incomes), profit maximization is not the end driver of the use of soil fertility management inputs. It concludes that a lot more goes into farmers’ decision-making process relating to the use of soil fertility management practices than can be explained by the neoclassical profit/utility maximization principle. The study discusses the policy implications of these findings.