Techno-economic and environmental analysis of an integrated standalone hybrid solar hydrogen system to supply CCHP loads of a greenhouse in Iran

The techno-economic and environmental performance of hybrid solar hydrogen energy systems was investigated to provide combined cooling, heating and power (CCHP) demands of a standalone greenhouse in Iran to achieve sustainable agriculture based on an optimization procedure. From the environmental point of view, by deploying hybrid energy systems, 83%, to 100% of emissions can be avoided. Also a sensitivity analysis was performed on the hybrid energy systems in order to study the effect of major parameter variation on the systems justification. It was concluded that hybrid solar systems are economically competitive with conventional systems, for high solar intensity locations with high diesel fuel prices and decreased prices for PV and hydrogen storage technology.     

知识管理导向的煤炭城市技术创新路径创造

技术创新是煤炭城市协调发展的重要支撑和根本保证,现有的煤炭城市技术创新存在着历史遗留及因其特性产生的固有障碍因素。知识管理是通过对知识资源的有效管理和利用,创造新价值和增强竞争优势的持续管理创新活动,它是破解煤炭城市技术创新路径闭锁的有力工具。     

侧吸导烟技术的经济性分析

介绍了侧吸导烟技术的技术背景,分析计算了焦炉装煤烟尘成分及含量,经对该技术的经济效益进行概算后显示,该技术可以有效改善焦炉区及周边环境,每年还可创造可观的经济效益,是一项值得研究推广的技术。     

Effective communication about complex environmental issues: Perceived quality of information about carbon dioxide capture and storage (CCS) depends on stakeholder collaboration

This experimental research addresses the effectiveness of communication about complex environmental issues, depending on whether the same information is provided by multiple collaborating or by individual organizations (i.e., stakeholders). The information provided pertains to carbon dioxide capture and storage (CCS) technology, as an example of a complex environmental issue. In Studies 1 (N = 75) and 2 (N = 66) we found that participants perceived factual information from collaborating stakeholders to be of higher quality than when the same information was provided by individual stakeholders. As predicted, the expectation of diverse perspectives being represented in the collaborative information mediated this effect. In addition, in Study 3 (N = 79) the perceived dissimilarity of collaborating stakeholders was shown to be an important precondition for the collaboration effect observed in Studies 1 and 2. Finally, these studies indicate that occasional collaboration between different stakeholders does not necessarily harm the perceived credibility of each individual stakeholder.     

茶叶蛋白的研究现状分析及发展对策研究

茶叶中含有15%—30%的蛋白质,对生物体具有多种重要功能,但其中绝大多数是非水溶性蛋白质,难以直接被人体吸收。目前对茶叶蛋白的研究主要集中在提取工艺上,研究表明用复合法提取的效果最好。为了更好地利用茶叶资源,可通过对非水溶性蛋白改性(溶解性、吸水性、吸油性、乳化性、胶凝性等)来提高人体对茶叶蛋白的利用率,发挥茶叶蛋白的生物功能。     

中国碳捕集、利用与封存技术研发与示范

碳捕集、利用与封存(CCUS)是一项新兴的、具有大规模减排潜力的技术,有望实现化石能源使用的CO2近零排放,被认为是进行温室气体深度减排最重要的技术路径之一.开展CCUS技术的研发和储备,将为中国未来温室气体减排提供一种重要的战略性技术选择,受到政府、企业和学术界的广泛关注.本文从CCUS技术产生和发展的背景出发,概括了该技术的特点及存在的主要同题,总结了当前中国CCUS技术政策,介绍了中国CCUS技术研发、试点示范、国际合作等的开展情况,并通过与欧美等发达国家CCUS技术发展与示范活动现状的对比,初步分析了中国CCUS技术发展方面存在的主要不足.为进一步推动我国CCUS技术的研发与示范,文章提出应加强国家层面的技术政策指导和宏观协调、引导资源有效配置;推动建设行业间的CCUS技术合作平台;重视CCUS来来技术应用软环境建设等有针对性的建议.     

The ethics of genetic engineering and gene drives in conservation

The ethical issues associated with using genetic engineering and gene drives in conservation are typically described as consisting of risk assessment and management, public engagement and acceptance, opportunity costs, risk and benefit distributions, and oversight. These are important, but the ethical concerns extend beyond them because the use of genetic engineering has the potential to significantly alter the practices, concepts, and value commitments of conservation. I sought to elucidate the broader set of ethical issues connected with a potential genetic engineering turn in conservation and provide an approach to ethical analysis of novel conservation technologies. The primary rationales offered in support of using genetic engineering and gene drives in conservation are efficiency and necessity for achieving conservation goals. The instrumentalist ethical perspective associated with these rationales involves assessing novel technologies as a means to accomplish desired ends. For powerful emerging technologies the instrumentalist perspective needs to be complemented by a form-of-life perspective frequently applied in the philosophy of technology. The form-of-life perspective involves considering how novel technologies restructure the activities into which they are introduced. When the form-of-life perspective is applied to creative genetic engineering in conservation, it brings into focus a set of ethical issues, such as those associated with power, meaning, relationships, and values, that are not captured by the instrumentalist perspective. It also illuminates why the use of gene drives in conservation is so ethically and philosophically interesting.     

高速公路紧急事件处置现场视频无线传输系统的研究

从高速公路交通事故紧急处置和应急救援的角度出发,在对高速公路交通事故过程、影响因素、紧急处置与救援特点及其信息需求分析的基础上,指出高速公路现有的有线监控系统、CDMA,GPRS系统均无法满足高速公路交通事故紧急处置和应急救援中对视频实时传输的需要。给出了笔者研发的适用于高速公路应急救援现场的基于WLAN的无线视频实时传输系统的基本原理与功能。     

光气生产装置的危险性及事故统计分析

通过对光气、光气化生产工艺过程存在的危险性分析,笔者认为气相光气化工艺比液相光气化工艺危险性小,而固体光气化生产工艺与气、液相光气生产工艺相比,危险性更小。同时对国内外光气和光气化生产发生事故的原因进行分析探讨,指出事故的原因主要是由管道及设备缺陷、个体防护用品缺乏、设计缺陷及人为失误引起。采用固体光气替代光气参与各种有机合成,与液相或气相光气工艺相比具有安全、反应条件温和、易操作、工艺简便、反应计量准确等优点,因此,固体光气工艺发展前景广阔。     

综合防尘技术在煤矿的应用实践

粉尘严重威胁矿井安全生产和职工身体健康。公司依靠科学管理，完善了各项综合防尘管理制度，制定了一系列综合防尘方面的管理规定和防尘技术操作规程；加强技术创新，重点抓好综采、综掘工作面以及回风系统和定点尘源的装置，实行自动控制等综合防尘技术；从管理和技术创新角度，通过采用减少粉尘产生、降尘、排尘、除尘、个体防尘等综合防尘技术措施应用实践，取得了良好的效果。