基于FAHP的京津冀农宅耦合用能技术应用潜力评价

构建一种太阳能空气能耦合用能技术的应用潜力评价体系,通过模糊层次分析法(FAHP)构建该技术的评价模型,从地域指标、技术指标、能源指标、政策指标、市场指标五个方面选用5/5-9/1标度法对该技术潜力进行评价,结果表明其单因素得分依次为4.1594、4.2051、4.5400、4.8955、3.5274。

探析常减压装置能耗特点及优化用能技术

本文结合常减压装置在运行过程中的能耗特点,对其优化用能技术进行了分析和探讨,希望可以为炼油企业的节能降耗提供一定的参考。

用能技术还是管理技术?——绿色技术创新发生环节和类型的抉择

为厘清环境规制对企业绿色技术创新的影响及其机理,本文从企业绿色技术创新发生的环节和类型的视角切入,将企业绿色技术创新分为用能技术创新和管理技术创新两大类及其下设的七小类,并将之在生产链环节(源头、过程和末端)上加以归类,通过匹配沪深A股上市公司、《中国环境统计年鉴》和《中国工业经济统计年鉴》获取了关于环境规制和企业绿色技术创新的指标,研究了环境规制约束下企业技术绿色创新的抉择。结果发现:第一,环境规制整体上未对企业绿色技术创新有明显促进作用,“创新补偿”效应难以成立;第二,其内驱因素是,环境规制显著降低了企业生产率和收益率;第三,其外部原因是,与低污染行业企业相比,环境规制对高污染行业企业的绿色技术创新有一定促进作用,体现在用能技术创新、管理技术创新两方面,并分布在生产链的源头、过程及末端三个环节;第四,其外部原因还包括环境规制作用的阶段性,环境规制对个别绿色技术创新指标造成了先促进后抑制的影响,也影响了“创新补偿”效应的成立。据此,本文对环境规制约束下企业绿色技术创新的激励和选择提供一定启示。

常减压装置能耗特点及优化用能技术分析

随着经济全球化格局的形成,石油又是各国重要的储备能源,而其又是一种不可再生的化石能源,尤其现在石油资源的开采面临短缺的状况,在进行开采、开发、利用等行为时需要大量的设备进行工作,而这些设备在开采、炼制石油时也会对能源有所消耗,也就增加了能源消耗的成本。本文就常减压装置的运行能耗的特点,对其优化用能技术进行研究,以期对炼油企业在今后的设备节能方面有所帮助。

石油企业常减压装置能耗特点及优化用能技术

主要针对常减压装置能耗特点以及优化用能技术进行分析,结合当下常减压装置能耗以及用能技术应用现状为根据,从常减压装置能耗特点、优化用能技术等方面进行深入研究以及探索,主要目的在于更好地利用常减压装置能耗特点,同时不断优化用能技术在常减压装置中的运用,实现常减压装置能耗的科学消耗。

常减压装置能耗特点及优化用能技术

由于行业特点，石油化工能耗往往加大，各项装置能耗也有着自身的特点，如果不能有效对装置能耗情况进行控制，势必会造成一定程度的资源浪费。本文以常减压装置为例，对该装置能耗特点与优化用能技术两部分内部进行分别论述，旨在提升常减压装置运用水平，保证石油行业的稳定发展。

广东能源资源报告

能源是国民经济和社会发展的重要战略物资。当今全球能源与经济、环境三者已成为一个不可分割的整体，是关系到人类生存和长远发展的根本所在。广东省是一个缺乏能源的省份，但由于经济的迅速发展，能源的消费量又非常大，经济、能源和环境的协调发展，是广东实现现代化目标的重要前提，所以我们必须对广东省能源的可持续发展状况投入更多的关注，寻求有效的解决途径和方案。

“京津冀地区”农村居民建筑节能改造意愿探究

农村居民对美好生活日益增长的需求,需要清洁可再生的能源及高效而绿色的建筑节能技术作为保障。在建筑节能改造的过程中,人们的改造意愿十分关键。针对京津冀地区4个典型村落同时开展为期一个月的驻村调研,以问卷填写以及交流访谈的方式调研了383户农宅,回收问卷1380份。问卷立足于被测家庭人员特征、建筑基本特征、建筑节能技术特征的客观现实,分析了京津冀地区农村居民的节能意识与技术认知水平。调研分析表明,该地区村民节能环保意识较弱,更注重技术的经济性,但村民在详细了解建筑节能技术经济指标后,愿意支付9000元以上节能改造费用的村民人数提升了55%。提出的京津冀农宅节能技术改造意愿提升策略,对今后建筑节能政策制订以及具体实施有借鉴意义。

Process model of IT impacts on firm competitiveness based on application capability of information technology

To investigate the process of information technology （IT） impacts on firm competitiveness, an integrated process model of IT impacts on firm competitiveness is brought forward based on the process-oriented view, the resource-based view and the complementary resource view, which is comprised of an IT conversion process, an information system （IS） adoption process, an IS use process and a competition process. The application capability of IT plays the critical role, which determines the efficiency and effectiveness of the aforementioned four processes. The process model of IT impacts on firm competitiveness can also be used to explain why, under what situations and how IT can generate positive organizational outcomes, as well as theoretical bases for further empirical study.

Akebia ― a valuable wild fruit under domestication

Akebia is a wild fruit originating in the Yangtse river valley and the surrounding areas. It includes mainly three species （subspecies）： Akebia trifoliata, Akebia trifoliata subsp, australis, and Akebia quinata. It has many good traits, such as large fruit size, early fruit-setting and high yield, excellent eating quality, and good environmental adaptability. However, there are some shortcomings with the fruit, including thick skin, excessive number of seeds, and relatively small proportion of edible flesh. Akebia is also a traditional Chinese medicine, which has the functions of relieving internal heat and diuresis, dredging venation and improving blood circulation, cleansing facial chloasma, detoxication and anti-cancer activities. Akebia can be used as fresh fruit, for processing, and for pharmaceutical purposes. We have been undertaking a series of research on the domestication and utilization of Akebia, including cultivar selection, techniques for cultivation, storage and processing, and related basic studies. A Chinese trade name “Hehuanguo” and an English trade name “Joyfruit” have been registered for Akebia to facilitate its commercial development.

Advances in Plant Science and Its Prospects

Focusing on the global food security and analyzing the challenges now confronting human being of global climate change,sustainable development of agriculture,energy and environment,plant scientists should take the social responsibility and play the role in solving the global problems like food security from the developmental status and potential of plant science and technology. Moreover,by working with agronomists, ecologists and environmental experts,plant scientists do provide novel ideas and technologies for developing low carbon agriculture,for breeding new crop varieties with high yield and quality and stress resistance,for developing new type of energy plants,for supplying healthy foods and drugs,reasonably using land and water resources,and for ameliorating environment,making better contribution to the sustainable development of the globe and human being ourselves.

Investigation on Installation of Offshore Wind Turbines

Wind power has made rapid progress and should gain significance as an energy resource,given growing interest in renewable energy and clean energy.Offshore wind energy resources have attracted significant attention,as,compared with land-based wind energy resources,offshore wind energy resources are more promising candidates for development.Sea winds are generally stronger and more reliable and with improvements in technology,the sea has become a hot spot for new designs and installation methods for wind turbines.In the present paper,based on experience building offshore wind farms,recommended foundation styles have been examined.Furthermore,wave effects have been investigated.The split installation and overall installation have been illustrated.Methods appropriate when installing a small number of turbines as well as those useful when installing large numbers of turbines were analyzed.This investigation of installation methods for wind turbines should provide practical technical guidance for their installation.

Application Scenarios and Enabling Technologies of 5G

Fast growth of mobile internet and internet-of-things has propelled the concept formation and research on 5G wireless communications systems which are to be standardized around 2020(IMT-2020).There will be diverse application scenarios expected for 5G networks.Hence,key performance indicators(KPIs) of 5G systems would be very diverse,not just the peak data rate and average/edge spectral efficiency requirements as in previous generations.For each typical scenario,multiple technologies may be used independently or jointly to improve the transmission efficiency,to lower the cost,and to increase the number of connections,etc.Key enabling technologies are discussed which include massive MIMO,ultradense deployment specific techniques,nonorthogonal transmission,high frequency communications,etc.

Study on Flexible Power Generation Device Using Piezoelectric Film

Various ocean energy technologies have been developed that harness several kinds of renewable energy resources of the ocean. However, these technologies suffer from problems such as high construction and maintenance costs, restrictive installation requirements and damage by extraordinary weather conditions. In this paper, we propose a lightweight and FPGD （flexible power generation device） that overcomes these problems. The FPGD essentially consists of piezoelectric films and silicon rubber. Because the FPGD is small and flexible, it is anticipated to efficiently convert fluid energy into electrical energy even when the fluid energy is low. We perform several experiments to confirm the effectiveness of the FPGD and we discuss the results.

Multi-user performance analysis of differential frequency hopping system over Rayleigh-fading channel

A novel non-coherent detection scheme for differential frequency hopping(DFH)system is proposedin asynchronous multi-user environments over Rayleigh-fading channels.The synchronous and asyn-chronous multi-user performances of DFH with the conventional detection scheme and this novel detectionscheme are analyzed,respectively.The performance results are validated with simulation.The results ofanalyses and simulations prove two conclusions.Firstly,the performance of asynchronous multi-user DFHsystem overcomes that of synchronous multi-user DFH system over Rayleigh-fading channel.Secondly,the novel detection scheme can achieve better performance than the conventional non-coherent detectionscheme in asynchronous multi-user environments.

Urban Water Resource Utilization Efficiency in China

The efficient use of water resources directly affects environmental, social, and economic development; therefore, it has a significant impact on urban populations. A slacks-based measure for data envelopment analysis （SBM-DEA） has been widely used in energy efficiency and environmental efficiency analyses in recent years. Based on this model, data from 316 cities were examined and a category method was employed involving three different sorting techniques to empirically evaluate the efficiency of urban water re- source utilization in China between 2000 and 2012. The overall efficiency （OE） of urban water resource utilization in China was initially low, but has improved over the past decade. The scale efficiency （SE） was higher than the pure technological efficiency （PTE）; PTE is a major determining factor of OE, and has had an increasingly significant effect. The efficiency of water resource utilization varied ac- cording to the region, urban scale, and economic function. The OE score for the eastern China was higher than for the rest of the region, and the OE score for the western China was higher than for the central China. The OE score for urban water resource utilization has improved with urban expansion, except in the case of small cities. The SE showed an inverted U-shaped＇ trend with increasing urban expansion. The OE of urban water utilization in comprehensive functional cities was greater than in economic specialization cities, and was greater in heavy industry specialization cities than in other specialization cities. This study contributes to the field of urban water resource management by examining variations in efficiency with urban ~ezle

Urban Big Data and the Development of City Intelligence

This study provides a definition for urban big data while exploring its features and applications of Chi- na＇s city intelligence. The differences between city intelligence in China and the ＂smart city＂ concept in other countries are compared to highlight and contrast the unique definition and model for China＇s city intelligence in this paper. Furthermore, this paper examines the role of urban big data in city intel- ligence by showing that it not only serves as the cornerstone of this trend as it also plays a core role in the diffusion of city intelligence technology and serves as an inexhaustible resource for the sustained development of city intelligence. This study also points out the challenges of shaping and developing of China＇s urban big data. Considering the supporting and core role that urban big data plays in city intel- ligence, the study then expounds on the key points of urban big data, including infrastructure support, urban governance, public services, and economic and industrial development. Finally, this study points out that the utility of city intelligence as an ideal policy tool for advancing the goals of China＇s urban de- velopment. In conclusion, it is imperative that China make full use of its unique advantages-including using the nation＇s current state of development and resources, geographical advantages, and good hu- man relations-in subjective and objective conditions to promote the development of city intelligence through the proper application of urban big data.

Feasibility of an innovative integrated process of simultaneous desulfurization and denitrification for high strength wastewater

An anaerobic expanding-bed reactor was adopted to investigate the feasibility of an innovative integrated process of simultaneous desulfurization and denitrification （SDD） for high strength wastewater. In the reactor, heterotrophic bacteria （including sulfate reducing bacterium and denitrifying bacteria） and autotrophic bacteria （ including Thiobacillus denitrificans） cooperated together by incubating and enriching functional bac- teria on different carriers in the anaerobic activated sludge. Synthetic wastewater with high concentrations of sulfate and nitrate was employed. The experimental resuhs showed that the removal efficiency of sulfate and nitrate was above 85% , elemental sulfur was observed while nitrate was absent in effluent. The balance of sulfur, nitrogen and electron was discussed respectively, which indicated that the integrated SDD process could be actualized. These resuhs might provide a guidance to further investigate the key factors affecting the integrated SDD process and to improve the efficiency of desulfurization and denitrification in wastewater treatment.

Utilizing Solar Thermal Energy for Post-Combustion C02 Capture

Post-combustion amine absorption and stripping can remove 90% of the CO2 from power plant flue gas, but systems can reduce electrical output by approximately 30% due to energy requirements for stripping CO2 from solvent and CO2 compression. The CO2 capture energy penalty can be reduced while developing renewable energy technologies by meeting CO2 capture energy requirements with a solar thermal energy system, particularly when electricity demand and prices are the highest. This study presents an initial review of solar thermal technologies for supplying CO2 capture energy, with a focus on high temperature systems. Parabolic troughs and central receivers are technically able to provide energy for CO2 capture. However, the solar system＇s capital costs would be roughly half that of the base coal-fired plant with CO2 capture, and high electricity prices are required to offset the costs of operating the solar thermal system. For high temperature solar thermal systems, direct electricity generation is likely a more efficient way to use solar energy to replace output lost to CO2 capture energy. However, low temperature solar thermal systems might integrate better with solvent stripping equipment, and more rigorous analysis is required to definitively assess the feasibility of using solar energy for CO2 capture.

New Technology Usage for Sustaniable Dairy Cow Reproductive Perfomances

Technology gives many oppurtunites for cattle farmers for easier and effective herd management possibilities. New era provides many realistic applications using smart applications for farmers. Especially milking is very popular for engineering applications. Reproductive technologies can be seen as frontier applications. Reproductive performances of the dairy farms can be defined as number of calves for cows in a year. It means new material for meat and milk production. Because new female calf means new cow for her while male calf means new material for beef. If meat and milk production are to be increased, cow productivity, i.e. the number of calves produced lifetime must be improved and increased. Although varying among herds, annual average herd incidences of reproductive disorders and reproductive performance were similar to those reported. Managerial practices influenced incidences of retained placenta and uterine infection, days open of cows not bred and of all cows, services per conception and percentages of herd open more than 100 days and culled for low production. Good heat detection programs can have a major impact on overall herd reproductive performance. The best heat detection programs start with careful timing, good observation and the effective use of detection aids. Being able to distinguish and interpret cow behaviour and other signs is critical, so are good record keeping and training for the people responsible for heat detection. Generaly, farmers with the best heat detection results use a combination of observation and heat detection aids. Several options are available to aid heat detection and increase heat detection rates. Although a rich variety of methods have been introduced for the detection of oestrus, a more accurate and practical method is still required.