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journal of Environmental Sciences 2015年第11期27卷 1-7页

作者： Guofeng shen jiangsu Provincial Key Laboratory of Environmental Engineering Jiangsu Academy of Environmental Sciences

Residential low efficient fuel burning is a major source of many air pollutants produced during incomplete combustions, and household air pollution has been identified as one of the top environmental risk factors. Here we compiled literature-reported emission factors of pollutants including carbon monoxide（CO）, total suspended particles（TSPs）, PM2.5, organic carbon（OC）,elemental carbon（EC） and polycyclic aromatic hydrocarbons（PAHs） for different household energy sources, and quantified the potential for emission reduction by clean fuel adoption. The burning of crop straws, firewood and coal chunks in residential stoves had high emissions per unit fuel mass but lower thermal efficiencies, resulting in high levels of pollution emissions per unit of useful energy, whereas pelletized biofuels and coal briquettes had lower pollutant emissions and higher thermal efficiencies. Briquetting coal may lead to 82%–88% CO, 74%–99%TSP, 73%–76% PM2.5, 64%–98% OC, 92%–99% EC and 80%–83% PAH reductions compared to raw chunk coal. Biomass pelletizing technology would achieve 88%–97% CO, 73%–87% TSP, 79%–88%PM2.5, 94%–96% OC, 91%–99% EC and 63%–96% PAH reduction compared to biomass burning. The adoption of gas fuels（i.e., liquid petroleum gas, natural gas） would achieve significant pollutant reduction, nearly 96% for targeted pollutants. The reduction is related not only to fuel change, but also to the usage of high efficiency stoves.

关键词： Household solid fuel use Air pollutants Clean fuel intervention Emission reduction

Asymmetric Reformatsky Reaction Induced by Dipeptides

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Chinese Chemical Letters 2000年第8期11卷 659-662页

作者： Wang, ZY shen, j jiang, CS You, TP Univ Sci & Technol China Dept Chem Hefei 230026 Peoples R China

For the first time, synthetic dipeptides were applied to the catalysis of asymmetric Reformatsky reaction. Review in this domain & factors influencing enantioselectivity were discussed.

关键词： dipeptide derivative chiral ligands catalysis asymmetric Reformatsky reaction

Effect of leachate recycle and inoculation on microbial characteristics of municipal refuse in landfill bioreactors

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journal of Environmental Sciences 2001年第4期13卷 508-513页

作者： shen, D.-s. He, R. Ren, G.-p. Traore, I. Feng, x.-s. Dept. of Environment and Resource Zhejiang University Hangzhou 310029 China

Population development of key groups of anaerobic and aerobic bacteria involved in municipal refuse decomposition under laboratory landfill bioreactors with and without leachate recycle and inoculation was measured since modeling municipal refuse was landfilled in bioreactors for about 210 days. Hydrolytic fermentative bacteria (HFB), hydrogen-producing acetogenic bacteria (HPAB), methane-producing bacteria (MPB), sulfate-reducing bacteria (SRB), anaerobic and aerobic cellulolytic bacteria and denitrabacteria were enumerated by the most probable number technique. The results showed that the dominant microorganism groups were the methanogenic bacteria including hydrolytic fermentative, hydrogen-producing acetogenic and methane-producing bacteria. They were present in fresh refuse but at low values and positively affected by leachate recycle and refuse inoculation. The amounts of HFB or HPAB in digesters D4 and D5 operated with inoculation and leachate recycle reached their maximum values of 1010 - 1012 cells/g dry refuse for HFB or 105 - 106 cells/g dry refuse for HPAB on day 60, in digester D3 operated with leachate recycle on day 120 for HFB (109 cells/g dry refuse) or on day 90 for HPAB (105 cells/g dry refuse), and in digesters D1 and D2 on day 210 for HFB (109 cells/g dry refuse) or on day 90 for HPAB (104 - 106 cells/g dry refuse). The population of methane-producing bacteria in digesters D4 and D5 sharply increased on days 60 and 90 respectively, however in digesters D1, D2 and D3 on day 120. Leachate recycle and inoculation changed the cellulolytic microorganisms composition of refuse ecosystem, the higher amounts of anaerobic cellulolytic bacteria were measured in digesters D4 and D5 (107 cells/g dry refuse), followed by digesters D3 (106 cells/g dry refuse), D2 or D1 (104 cells/g dry refuse). However, the amounts of aerobic cellulolytic bacteria were much lower than that of anaerobic cellulolytic bacteria. And it was higher in digesters D3 than those in dig

关键词： Bacteria Bioreactors Fermentation Hydrolysis Land fill Microorganisms

Metal Oxide Nanostructures from Simple Metal-oxygen Reaction in Air

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journal of Materials Science & Technology 2008年第4期24卷 597-602页

作者： Zexaing shen Division of Physics and Applied Physics School of Physical & Mathematical SciencesNanyang Technological UniversitySingapore 637371Singapore

Metal oxide nanostructures （CuO, Co3O4, ZnO and α-Fe2O3） have been successfully fabricated by a simple and efficient method： heating the appropriate metals in air at low temperatures ranging from 200 to 400℃. The chemical composition, morphology and crystallinity of the nanostructures have been characterized by micro-Raman spectroscopy, x-ray diffraction, scanning electron microscopy and transmission electron microscopy. Two mechanisms： vapor-solid and surface diffusion play dominant roles in the growth of metal oxide nanostructures starting with low melting point metals （Zn and Cu） and high melting point metals （Fe and Co）, respectively. With sharp ends and large aspect ratio, the metal oxide nanostructures exhibit impressive field-induced electron emission properties, indicating their potentials as future electron source and displays. The water wettability and anti-wettability properties of iron oxide nanoflakes were also discussed in this work.

关键词： Metal oxide Nanostructures Field emission Wettability

Enantioselective Synthesis of Chiral 1-Ferrocenyl Alcohol via CBS-Reduction

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Chinese Chemical Letters 2001年第12期12卷 1079-1080页

作者： Chen, WY Lu, j Zhang, YW shen, Zx Suzhou Univ Dept Chem & Chem Engn Suzhou 215006 Peoples R China

Reduction of prochiral ferrocenyl ketones 2a-e in the presence of 10 mol% of chiral beta -amino alcohols 4a-b provides 1-ferrocenyl alcohols 1a-e in high yields (> 85%) with high optically purity (e.e. up to 96%).

关键词： beta-amino alcohol chiral ferrocene enantioselective synthesis borane

CONTROL OF CANCER PAIN TO ENSURE THE BEST POSSIBLE QUALITY OF LIFE

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journal of Traditional Chinese Medicine 1992年第4期12卷 243-255页

作者： G Q Yu j x Liu P W Li j x Qin E x Yu L M Liu L C Wu M H shen W S Zhou M M Li Guang An Men Hospital China Academy of Traditional Chinese Medicine Beijing.

Yu Guiqing 余桂清(Guang An Men Hospi-tal,China Academy of Traditional ChineseMedicine,Beijng 100053)The therapeutic strategy regarding can-cer pain is first to get rid of the causes ofpain with anticancer treatment so... 详细信息

关键词： Radix materia stasis anticancer verity herbal 田螺膏 relieve 黑龙丹大黄度虫丸

Attitude control of multi-spacecraft systems on SO(3)with stochastic links failure

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Chinese journal of Aeronautics 2024年第3期37卷 320-331页

作者： KANG Zeyu shen Qiang WU Shufan Chris j.DAMAREN MU Zhongcheng School of Aeronautics and Astronautics Shanghai Jiao Tong UniversityShanghai 200240China Institute for Aerospace Studies University of TorontoTorontoOntario M3H 5T6Canada

In this paper,for Multi-Spacecraft System(MSS)with a directed communication topology link and a static virtual leader,a controller is proposed to realize attitude consensus and attitude stabilization with stochastic links failure and actuator ***,an MSS attitude error model suitable for a directed topology link and with a static virtual leader based on SO(3)is derived,which considers that the attitude error on SO(3)cannot be defined based on algebraic ***,we design a controller to realize the MSS on SO(3)with attitude consensus and attitude stabilization under stochastic links failure and actuator ***,the simulation results of a multi-spacecraft system with stochastic links failure and a static virtual leader spacecraft are demonstrated to illustrate the efficiency of the attitude controller.

关键词： Multi-spacecraft systems Attitude consensus Attitude stabilization Stochastic links failure Super-martingale convergence

Fluidization of micro-interconnected fluidized beds for chemical looping

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Particuology 2021年第1期19卷 136-145页

作者： Tianxu shen xiao Zhu Tao Song Laihong shen Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education School of Energy and EnvironmentSoutheast UniversityNanjing 210096China jiangsu Provincial Key Laboratory of Materials Cycling and Pollution Control School of Energy and Mechanical EngineeringNanjing Normal UniversityNanjing 210042China

The micro-interconnected fluidized bed(MIFB)was designed to improve the evaluation condition of oxygen carrier,which is difficult to perform in a lab-scale interconnected fluidized bed because of the large demand for bed *** reduction of bed inventory in the MIFB was mainly achieved by the appropriate miniaturization of the reactor size,in which the wall effect and operating flexibility should be taken into *** hematite serving as the oxygen carrier,stable and flexible fluidization could be realized with 342.9 g of bed *** perforated plates were arranged in the middle of the reactor to improve gas-solid distribution,which also could restrain the slugging formation and increase the particle residence time by 28.9%.A different fluidization phenomenon was observed in this two-stage reactor in which the particle fluidization was reconstructed in the upper *** 48 h of cold operation,the hematite oxygen carrier attrition rate was evaluated as 0.151 wt.%/h corresponding to 660 h lifetime,where 12.5%of particle attrition was contributed by internal perforated *** excellent fitting performance was found between the pressure difference in the risers and the upward particle flow,but the correction factor should be adjusted according to the fluidization flow.

关键词： Micro chemical-looping reactor Bed inventory Internal perforated plate Hydrodynamics

Recent advances of flexible sensors for biomedical applications

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Progress in Natural Science:Materials International 2021年第6期31卷 872-882页

作者： Guozhen shen State Key Laboratory for Superlattices and Microstructures Institute of Semiconductors Chinese Academy of Sciences

Ultrathin, soft, flexible and stretchable sensors offer good opportunity to design personal health diagnosis and treatment systems by fabricating wearable biomedical devices for continuous health monitoring and preventive medicine. This paper summarizes the recent advances of flexible sensors for next generation biomedical applications. Materials used for flexible sensors are first briefly introduced. Followed to this part, the latest developments of flexible sensors for biomedical applications are discussed in detail, including flexible sensors for skin-attached devices and implantable devices. Finally, the challenges and future research directions of flexible sensors are also discussed in the development of biomedical devices.

关键词： Flexible electronics Sensors Biomedical Electronic skins

Ultrasound enhancement of the reduction of the Basic Green dye in wastewater by cast iron

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journal of Environmental Sciences 2006年第1期18卷 1-3页

作者： shen Zhuang-zhi shen jian-zhong Institute of Acoustics Chinese Academy of Sciences Beijing 100080 China

Dyes in wastewater are of particular environmental concern since they give an undesirable color to the waters, dye and their derivatives are harmful to human health and the environment （ Annadurai et al., 2002）. Due to their biological persistency, conventional biological treat-ment processes such as activated sludge process are ineffective for their removal（Shaul et al., 1991）. There is a need to develop effective methods for the degradation of such persistent organic pollutants, either to less harmful compounds or, more desirable, to their complete mineralization.

关键词： cast iron ultrasound Basic Green combined effect