从我国五大乙烯的原料现状分析谈乙烯原料的优化配置

本文对我国五大乙烯原料现状及裂解运行情况进行了调研，对五大乙烯原料的质量做了总体评价，并对乙烯原料的配制做了技术经济分析；针对目前我国乙烯原料量少质差的国情，根据总公司对乙烯原料内优外购、从总体经济效益出发的原则，对五大乙烯原料特别是燕化乙烯原料的总体优化和多元化平衡提出了看法及建议。     

各种乙烯原料的经济性分析

介绍了我国乙烯原料的状况,通过计算从原料到产品的增值,再由增值推算原料应有的实际价值的方法,分析比较了各种乙烯原料的经济性,并对原料的选择使用提出看法和建议。     

钢铁工业铁矿原料含硫组分基本状况剖析

基于同内铁矿原料的构成状况，对铁矿原料含硫组分进行了具体分析，反映了开展烧结脱硫工艺工作研究的基础因素。结合对未来国内钢铁生产原料构成变化的预测，对铁矿原料平均含硫组分做出估计，从原料质量角度提出钢铁工业铁矿原料含硫组分控制和治理的相关要求。     

乙烯生产原料的发展状况分析

从国内外乙烯原料构成现状入手，对不同的乙烯裂解原料进行了经济评价和成本影响分析，同时介绍了开发乙烯生产新原料路线的技术进展，提出了对对乙烯裂解原料优化的几点建议。     

有机化工原料工业生产现状及其发展策略

本文介绍了有机化工原料工业发展现状,同时以江汉石化为例,对有机化工原料工业生产面临的现状与优势进行了详细分析,并对有机化工原料的发展策略进行了研究。     

国外石油化工技术发展主要动向

国外石油化工技术发展主要动向朱百善一、有机化工品生产技术１．拓宽原料来源，开发低价原料加工工艺。由于原料费用在有机化工品生产成本中占有很大的比重，石化工业对于拓宽原料来源、利用廉价原料的技术开发给予了高度重视，并且已经或即将取得可观的进展。轻烃脱氢制...     

乙烯原料发展趋势及优化建议

分析了世界及主要地区乙烯裂解原料构成现状和未来发展趋势及国内，特别是中石化集团公司乙烯裂原料的构成特点及存在问题，对中石化集团公司乙烯裂解原料的未来优化提出了相应建议。     

我国钢铁原料准备技术进步与展望

钢铁原料准备技术进步能有效提高劳动生产效率,节约工厂用地,为保证钢铁厂连续正常生产、提高产品质量、降低成本、节能减排、改善生产环境提供必要和有利的条件。分析了钢铁原料准备技术3个时期的发展特征,论述了我国钢铁原料准备混匀技术、管控技术和环保技术的突出进步,提出了未来原料准备技术应向管理集中化,原料稳定化,设备大型化、连续化、自动化,污染减量化的方向发展。     

市场前景看好的部分有机化工原料

市场前景看好的部分有机化工原料王志明着石油化工的发展，我国在“六五”、“七五”、“八五”期间建成了一批有机化工原料生产装置，使得有机化工原料在产量、品种、质量方面都有了较大幅度的提高。但与日益增长的市场需求相比，仍有相当大的差距。根据有机化工原料供需...     

加拿大化学工业徘徊在十字路口

加拿大化学工业近年来一直深受原料供应紧张的困扰。在油砂开采和天然气发现的刺激下,上游原料行业曾一度扩张,但是累赘的法规和经济疲软最终限制了上游原料行业的发展。近期加拿大上游原料行业投资恢复至正常水平,这可能会刺激加拿大的经济增长。     

质量体系与HSE管理体系一体化初探

从分析ＩＳＯ９００标准与ＨＳＥ管理标准的相同点和不同点入手,从管理学的角度探讨了质量体系与ＨＳＥ管理体系相结合的可能性与必要性,探讨了企业实施两个体系一体化的措施。指出,建立一个能同时满足了ＩＳＯ９０００标准要求和ＨＳＥ管理标准要求的综合体系,可以明显地提高企业管理效益、降低体系运行费用。     

Improving the food environment in kindergartens and schools: An overview of policies and policy opportunities in Europe

Childhood obesity and unhealthy nutrition are high on the European policy agenda because of their association with chronic diseases and due to the related social and economic burden. In 2014, the EU Action Plan on Childhood Obesity 2014–2020 was launched with an overarching goal to halt the rise of overweight and obesity in children by the year 2020. To facilitate the implementation of the Action Plan, the Directorate-General for Health and Food Safety of the European Commission provided support to bring together 25 Member States plus Norway for a Joint Action on Nutrition and Physical Activity (JANPA). The current paper is based on the results of JANPA and presents the explored policy options to improve children's nutrition by targeting the food environment in and around kindergartens and schools. We conclude that for effective actions countries need to combine various mutually reinforcing policies in parallel, including the provision of healthy foods, lowering the availability of unhealthy foods, restricting marketing, and promoting education. Success will depend on the coherence of messages and on the engagement of a wide range of stakeholders and sectors. Evaluation should be carefully designed, using indicators of progress towards the goal of improving diet and reducing obesity in children.     

环境影响评价及验收费计算标准研究

随着国家和社会越来越重视环境保护,环境影响评价工作的要求越来越高,工作内容越来越复杂,咨询收费也发生较大变化,在建设项目可研和初步设计阶段科学合理的计算环境影响评价费及验收费是合理确定投资的一项重要工作.文章首先对目前环境影响评价及验收费现状进行分析总结,为开展环境影响评价及验收费计算优化提供基础,然后依据国家现行的法...     

Diffusion and usage of public e-services in Europe: An assessment of country level indicators and drivers

We analyze the state of the art of indicators on e-government, e-health, e-procurement and e-participation. We survey the main methodological properties of these indicators, and highlight their heuristic potential. Further, we address empirically the issue of the explanation of the availability scores, i.e. how the supply of the various e-services in each country is affected by political, institutional and socio-economic differences, and is followed by actual usage. The econometric analysis uncovers the importance of broadband penetration and higher education as drivers for most of the types of e-services and users (citizens and businesses). Moreover, a corruption-free and agile public sector proves to be an important pre-condition for more effective supply and usage. Despite data limitations and the complexity of the underlying diffusion phenomena, our study is the first truly longitudinal contribution aimed at disentangling the common drivers of such an important phenomenon – the e-services availability and usage across European countries. As such, this work appears useful to inform the policy debate and practice, in a phase characterized by a prospective reorientation of the public e-services provision and policy agenda.     

企业信息化与工业化融合影响因素实证研究——基于山东省调查数据的结构方程模型分析

针对企业信息化与工业化融合影响因素复杂性和主观性等特点,构建企业两化融合影响因素评价指标体系,运用结构方程模型理论,建立企业层面的两化融合影响因素模型,并参照山东省200家重点工业企业的调研数据,对模型进行检验、修正和结果分析,并得出相关研究结论,为进一步推进山东省企业信息化与工业化融合提供有意义的对策和建议。     

The locating of emotion within a creative, learning and product orientated design and technology experience: person, process, product

Within this paper, a conceptualised triadic schema is hypothesised for locating emotion within a creative, learning and product orientated Design and Technology experience. The research is based upon an extensive literature review that has been synthesised and juxtaposed with the broad aspirational aims of the subject. The schema, based upon abductive reasoning and grounded theory, ultimately conceptualises the overarching theme of emotion within a creative, learning and product orientated Design and Technology experience within the Primary and Secondary stages of England’s education system. The triadic schema offers an additional opportunity in meta-theorising how the broad aspirational aims of the subject, as outlined in the English national curriculum statement of importance for Design and Technology, can be achieved through recognising the powerful overarching concept of emotion within three emerging domains: Person, Process and Product. The central tenet of this paper is the recognition of emotion within a triadic schema for meta-theorising the place of emotion within a creative, learning and product orientated Design and Technology experience. David Spendlove was previously a senior teacher in secondary education before moving into Higher Education and is now the subject leader for Design and Technology at the University of Manchester. He co-edits both Design and Technology Education: An international Journal and the DATA international research conference proceedings. He is a director of the Design and Technology Association and his research interests are broadly based around learning, pedagogy, creativity, emotion and gender.     

工程造价司法鉴定专家证人制度浅析

随着科技、经济的不断发展,诉讼案件越来越多样化、复杂化,经常涉及一些专业的问题,给法官的审判带来种种困难.尤其是建设工程案件,工程造价的鉴定尤为复杂,鉴定机构和鉴定人员的专业水平参差不齐,这让法官审判更是难上加难.最高人民法院于2019年对《最高人民法院关于民事诉讼证据的若干规定》进行了修正,对专家证人做了明确的规定与...     

New new technologies: the future and the present of work in information and communication technology

This paper outlines a selection of technological and organisational developments in the information and communication technology (ICT) sector and analyses their likely challenges for workers and trade unions around the globe. It addresses the convergence of telecommunications and information technology, the related developments of ubiquitous computing, ‘clouds’ and ‘big data’, and the possibilities of crowdsourcing and relates these technologies to the last decades' patterns of value chain restructuring. The paper is based on desk research of European and international sources, on sector analyses and technology forecasts by, for instance, the European Union and Organisation for Economic Co‐operation and Development, and some national actors. These prognoses are analysed through the lens of recent research into ICT working environments and ICT value chains, identifying upcoming and ongoing challenges for both workers and unions, and outlining possible research perspectives.     

BIM与VR技术在装饰工程设计阶段的应用分析

为了解决装饰工程设计阶段存在的设计图纸协同性较差、设计效率低,施工中存在专业碰撞及安全隐患等问题,运用BIM与VR技术并结合实际户型案例,通过构建带有参数属性的可视化设计体系,从可视化、虚拟体验、自主设计、装饰预算、碰撞检查、图纸生成等方面进行设计流程分析,探讨了BIM与VR技术在装饰工程设计阶段所带来的创新及应用价值。结果表明,BIM与VR技术在提高设计师设计效率、增强业主参与度、保证后期施工质量、降低装饰成本、提升业主满意度等方面均发挥了积极作用。BIM与VR技术为设计师和业主带来极大便利,将有可能逐步取代传统装饰工程设计流程。     

论“共主体”营销话语的建构与践行——关于现代营销近视症的矫治研究

本文针对当前营销理论和实践存在的"外形化"问题,梳理了莱维特提出营销近视症后的营销理论发展进路,得出该近视症并没有得到根治而且有新变异的论断和具有主体中心论特征与弊端的现代营销近视症;认为要根治该近视症,首先应克服"现代营销者研究现代营销"以及由此产生的"营销研究的近视症"局限,以营销研究者的身份、在跨学科和方法论高度与层面去寻求突破性思路和方法。基于这种认识,本文萃取和应用"后现代性"、"主体间性"与"网络嵌入性"等多学科话语作为矫治这种营销近视症的创新方法,重构了具有"消解对立、善待他者、与他者网络化互嵌共生"意蕴的共主体营销新话语,并论述了践行这种营销新话语的方式、机理和愿景。