烟气脱硝的低温等离子体放电形式的述评

本文对各种低温等离子体放电形式脱除烟气中NOx的效应进行述评,指出这些低温等离子体处理烟气技术要能走向实际应用,首要课题是必须降低能耗,提高NOx脱除效率。     

催化脱除焚烧烟气中有机污染物及NO_x研究进展

随着垃圾焚烧技术的广泛推广应用,垃圾电厂产生的烟气引起的环境污染问题已成为近期研究的焦点。介绍了焚烧烟气有机污染物及NOx催化脱除技术国内外研究进展,综述了催化脱除烟气中污染物控制方面的研究和应用现状,并指出目前催化脱除技术存在的问题及今后垃圾焚烧烟气中有机物、NOx脱除的发展方向。     

燃煤电厂烟气联合脱硫脱氮技术发展现状

着重介绍了近年来国内外应用和正在研究开发的一些SO2 /NOx 的联合脱除技术。包括炉内和烟气中SO2 /NOx 联合脱除技术 ,并针对我国国情对我国烟气净化技术的发展方向提出了建议。     

高分子化合物壳聚糖脱除燃煤烟气中汞的实验研究

在一维炉燃烧实验中采用安大略法和原子吸收光谱法分析测定了燃煤烟气中汞的形态分布和质量，发现烟气中单质汞占多数，与二价汞比为3:2。首次利用自制的壳聚糖类(Chitosan，简称CS)吸附剂对燃煤烟气中的汞进行吸附脱除，效果良好，在80℃吸附率达96.34%，同时对SOx和NOx有一定的脱除效果，并且能有效脱除单质汞，从而提出了干法脱除燃煤烟气重金属的新方法。     

等离子体联合动力波技术协同控制铅锌冶炼烟气中Hg、SO_2、NO_x实验研究EI北大核心CSCD

为了实现同时控制铅锌冶炼行业排放的汞(Hg)等重金属、二氧化硫(SO2)和氮氧化物(NOx)的目的,采用低温等离子体结合动力波湿法吸收技术对烟气中的单质汞(Hg0)、SO2和NOx进行了协同控制研究。首先利用低温等离子体放电技术研究了电压、氧气(O2)体积分数、污染物停留时间、Hg0初始质量浓度以及SO2和NO体积分数的变化对Hg0去除效率的影响,同时研究了电压以及SO2和NO初始体积分数对SO2和NO去除效率的影响,然后研究了低温等离子体结合动力波湿法脱除系统对Hg0、SO2和NO这3种污染物协同脱除的效果。结果表明,低温等离子体结合动力波湿法脱除系统对烟气中Hg0、SO2和NO的排放可起到高效协同脱除的效果,其去除效率分别达到51.3%、98%和50.9%。该技术不仅适用于有色冶炼烟气多种污染物协同脱除控制,而且同样适用于燃煤烟气,对于实现煤化石能源的高效清洁利用具有重要巨大的应用前景和深远的现实意义。     

等离子体联合动力波技术协同控制铅锌冶炼烟气中Hg、SO_2、NO_x实验研究

为了实现同时控制铅锌冶炼行业排放的汞(Hg)等重金属、二氧化硫(SO2)和氮氧化物(NOx)的目的,采用低温等离子体结合动力波湿法吸收技术对烟气中的单质汞(Hg0)、SO2和NOx进行了协同控制研究。首先利用低温等离子体放电技术研究了电压、氧气(O2)体积分数、污染物停留时间、Hg0初始质量浓度以及SO2和NO体积分数的变化对Hg0去除效率的影响,同时研究了电压以及SO2和NO初始体积分数对SO2和NO去除效率的影响,然后研究了低温等离子体结合动力波湿法脱除系统对Hg0、SO2和NO这3种污染物协同脱除的效果。结果表明,低温等离子体结合动力波湿法脱除系统对烟气中Hg0、SO2和NO的排放可起到高效协同脱除的效果,其去除效率分别达到51.3%、98%和50.9%。该技术不仅适用于有色冶炼烟气多种污染物协同脱除控制,而且同样适用于燃煤烟气,对于实现煤化石能源的高效清洁利用具有重要巨大的应用前景和深远的现实意义。     

燃煤电厂烟气联合脱硫脱氮技术发展现状

着重介绍了近年来国内外应用和正在研究开发的一些SO2／NOx的联合脱除技术,包括炉内和烟气中SO2／NOx联合脱除技术,并针对我国国情对我国烟气净化技术的发展方向提出了建议。     

高级氧化技术同时脱硫脱硝的研究进展

燃煤电站烟气排放的SO2和NOx给环境和人类健康造成了巨大的危害,如何在低成本、高效率的基础上实现烟气污染物的脱除越来越受到关注。高级氧化技术具备这样的特点:反应速度快、效率高和反应过程易控制等,能够实现SO2和NO同时脱除的目的。介绍了高级氧化技术的原理和特点,并着重介绍了Fen-ton法、UV/H2O2法、UV/Fenton法、O3/H2O2法等技术国内外研究现状以及各技术的优缺点。     

锦州热电SCR脱硝效率影响因素的试验研究

阐述了选择性催化还原（SCR）烟气脱硝技术的原理、工艺流程、装置布置,同时以锦州热电厂2×300MW机组烟气脱硝工程为研究对象,探讨了影响NOx脱除效率的主要因素,并提出相应建议。     

等离子体过程结合化学吸收脱除烟气中的NOx

研究用等离子体过程诱导H2O－O2自由基簇射技术，结合化学吸收脱除烟气中NOx。研究表明，通过调节喷嘴电极氧气流量，可得到稳定的流光电晕；氧气中水蒸汽对电晕放电的V－I特性有影响；在反应器内同时有HNO2和NHO3生成，NOx脱除率可达70％以上，NaOH溶液对NO吸收率较低，而对NO2的吸收率很高，经NaOH吸收液吸收后总NOx脱除率最高可达90％。     

Information technology, social values, and ethical responsibility: a select bibliography

The bibliography, which includes more than 600 entries, is a collection of contemporary and classic sources on information technology, ethics, and society. Addressing both social and ethical issues related to information technology, the bibliographic work is organized into two main parts: information technology and social values; information technology and ethical responsibility.     

Energy innovations through blockchain: Challenges,opportunities, and the road ahead

As a secure distributed ledger, blockchain has attracted a great deal of attention over the past decade. The power sector is not an exception to this phenomenon and industry leaders are looking into different ways to create value through this technology. Blockchain is a powerful enabling technology for decentralization of the energy systems of the future. Although this technology can be applied to a wide spectrum of applications in the power sector, many challenges and limitations are still needed to be addressed before its full implementation into grid operations. This paper presents energy innovations through the blockchain technology and addresses the barriers that preclude the power sector from large-scale, full-scope adoption of this technology. The emerging blockchain trends in near future will be further discussed and its potential in facilitating a secure, decentralized energy trading platforms will be investigated in this paper.     

新型通信专用无触点补偿式电力交流稳压电源的设计

通过对我冈的电力电源技术水平和现状的分析可知,目前相当部分地区的电网普遍存在电压不稳定、突变频繁等不良状况。本文设计了一种新型通信机站专用的大功率无触点补偿式电力交流稳压电源。这种稳压电源具有集无触点开关、先进变压器绕组技术和"三遥"等微机控制技术于一体的特点。     

Citizens, groups, communities, and information and communication technologies [Guest Editors' Introduction]

The six articles in this special issue are revised versions of papers presented at the 2008 IEEE International Symposium on Technology and Society (ISTAS '08), held in June 2008 in Fredericton, New Brunswick, Canada. Four papers delve into community and technology issues in Canada, and two investigate technology use by other communities: Mexican immigrants in the U.S., and the Chinese diaspora.     

工模具设计制造技术及其发展

介绍了东方电机工模具技术的研发、发展、典型技术和未来发展方向。     

Healthcare technology, economics, and policy: an evolving balance

Economic and policy issues increasingly influence healthcare technology solutions as we wrestle with keeping healthcare quality high while keeping costs under control. The healthcare system is also undergoing rapid change brought about by managed care, shifting care to team providers in an outpatient or home environment. The development of health technologies under new market arrangements needs to be examined so that quality of care and cost are not at cross roads. As these issues continue to evolve in the public forum, it is critical for engineers and contributors to technology in healthcare to understand the dynamics that influence technology need and and adoption in the healthcare market. We hope that this special issue will provide a basis for initial understanding of these issues and stimulate further involvement by the bioengineering community at large, for the improvement of healthcare across all of society.     

FinFET-based power-efficient,low leakage,and area-efficient DWT lifting architecture using power gating and reversible logic

For ultra-low-power applications, the computing components are smaller in size and consume less energy. In nonstationary signal analysis, the transformation plays an important role. Out of different transformation techniques, the most famous and dominant architecture is the discrete wavelet transform. The building block of the architecture should be optimized by all parameters. In this paper, the optimization was done on the power reduction and leakage current reduction. A new FinFET-based lifting-based wavelet architecture was proposed. Power gating and reversible logic methodology are proposed for the FinFET-based transform to reduce the dynamic power by about 30%. The proposed FinFET-based processing elements were utilized in the various blocks of the lifting-based DWT architecture. The implementation was done in 32-nm CMOS and FinFET technology. From the results, it has been investigated that the FinFET-based circuits are efficient when compared with CMOS technology. This is due to the second-order effects happening in CMOS circuits below 45 nm. The proposed design consumes less area and low leakage current and power when compared with the CMOS technology. Future trends of using multigate devices below 14 nm technology are presented finally.     

电网技术的创新、发展与应用

随着我国电网西电东送、南北互供、全国联网格局的形成 ,电网技术的创新与发展显得非常必要 , 数字化电网技术、紧凑型线路技术和紧凑型变电站设备、多回路和大导线截面线路以及特高压交直流输电技术等 10项创新技术和先进设备在电网建设工程中应积极推广。     

Gendered Perspectives on the Digital Divide, IT Education, and Workforce Participation in Kenya

The purpose of this study was to examine gendered perspectives on the digital divide, motivations for engaging in information technology (IT) education, and expectations regarding IT workforce participation in Kenya. Researchers interviewed 32 women and 31 men matriculating in an undergraduate IT-focused program at a Kenyan university. Interviewees reported that IT careers demand technical expertise, and a strong educational background in technology and business. However, their ability to meet these demands was hindered by significant national challenges such as restrictive IT policies, inadequate access to technology and educational resources, and a limited number of local firms that demonstrate the ability to manage advanced technology and IT workers. Women were particularly concerned about gender discrimination in the workplace. These findings imply that IT education and workforce entry require a complex mix of digital technologies, organizational capacity building, gender equity, and IT policy remedies.     

飞轮储能系统研究进展、应用现状与前景

飞轮储能系统是应用前景广阔的新技术,详细地介绍了国内、外高等院校、科研院所与科技企业的最近研究进展与应用现状,论述了该技术的应用方向与前景,并对飞轮储能系统研究进展、应用现状与前景进行了总结.