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Discharge characteristic of very high frequency capacitively coupled argon plasma

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Chinese Physics B 2021年第9期30卷 329-334页

作者： gui-qin Yin Jing-Jing Wang Shan-Shan Gao Yong-Bo Jiang Qiang-Hua Yuan Key Laboratory of Atomic and Molecular Physics&Functional Materials of Gansu Province College of Physics and Electronic EngineeringNorthwest Normal UniversityLanzhou 730070China

The discharge characteristics of capacitively coupled argon plasmas driven by very high frequency discharge are *** mean electron temperature and electron density are calculated by using the Ar spectral lines at different values of power(20 W-70 W)and four different frequencies(13.56 MHz,40.68 MHz,94.92 MHz,and 100 MHz).The mean electron temperature decreases with the increase of power at a fixed *** mean electron temperature varies non-linearly with frequency increasing at constant *** 40.68 MHz,the mean electron temperature is the *** electron density increases with the increase of power at a fixed *** the cases of driving frequencies of 94.92 MHz and 100 MHz,the obtained electron temperatures are almost the same,so are the electron ***-in-cell/Monte-Carlo collision(PIC/MCC)method developed within the Vsim 8.0 simulation package is used to simulate the electron density,the potential distribution,and the electron energy probability function(EEPF)under the experimental *** sheath width increases with the power *** EEPF of 13.56 MHz and 40.68 MHz are both bi-Maxwellian with a large population of low-energy *** EEPF of 94.92 MHz and 100 MHz are almost the same and both are nearly Maxwellian.

关键词： very high frequency discharges capacitively coupled plasma particle-in-cell/Monte-Carlo collisions

Cellular Fatty Acids as Chemical Markers for Differentiation of Acinetobacter baumannii and Acinetobacter calcoaceticus

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Biomedical and Environmental Sciences 2012年第6期25卷 711-717页

作者： YANG Chao GUO Zhao Biao DU Zong Min YANG Hui Ying BI Yu Jing WANG gui qin TAN Ya Fang Department of Clinical Medicine Shanxi Medical University Taiyuan 030001 Shanxi Province China Beijing University of Chinese Medicine Beijing 100029 China State Key Laboratory of Pathogen and B iosecurity Institute of Microbiology and Epidemio logy Beijing 100071 China

Objective Gas chromatography （GC） was used to investigate the cellular fatty acid （CFA） composition of 141 Acinetobacter boumannii and 32 A. calcoaceticus isolates from different locations in China and to find chemical markers to differentiate these two closely related bacteria. Methods Whole cell fatty acid methyl esters （FAMEs） were obtained by saponification, methylation, and extraction for GC analysis, followed by a standardized Microbial Identification System （MIS） analysis. Results All A. baumannii and A. calcoaceticus strains contained some major fatty acids, namely, 18：1 co9c, 16：0, Sum In Feature 3, 12：0, 17：1co8c, 3-OH-12：0, 17：0, Sum In Feature 2, 2-OH-12：0, and 18：0 compounds. Although most of the total CFAs are similar between A. baumannii and A. calcoaceticus strains, the ratios of two pairs of CFAs, i.e., Sum In Feature 3/18：1 co9c versus 16：0/18：1 co9c and Sum In Feature 3/18：1 co9c versus unknown 12.484/18：1 co9c fatty acids, could differentiate these two closely related bacteria. A. baumannii could be easily classified into two subgroups by plotting some ratios such as Sum In Feature 3/16：0 versus 17：0 and Sum In Feature 3/2-OH-12：0 versus17：0 fatty acids. Conclusion The ratios of some CFAs could be used as chemical markers to distinguish A. baumannii from A. colcoaceticus.

关键词： Acinetobacter baumannii Acinetobacter calcoaceticus Differentiation Fatty acids Gaschromatography.

A New Route to Syntheses of Zeolite Beta

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Chemical Research in Chinese Universities 1995年第4期11卷 367-369页

作者： DONGXue-yan LI Shou-gui and PANG Wen-qin(Department of Chenmistry,Key Laboratory of Inorganic Hydrothermal Synthesis,Jilin University,Changchun,130023) JILIN UNIV KEY LAB INORGAN HYDROTHERMAL SYNTHESISDEPT CHEMCHANGCHUN 130023PEOPLES R CHINA

ＡＮｅｗＲｏｕｔｅｔｏＳｙｎｔｈｅｓｅｓｏｆＺｅｏｌｉｔｅＢｅｔａＤＯＮＧＸｕｅ－ｙａｎ；ＬＩＳｈｏｕ－ｇｕｉａｎｄＰＡＮＧＷｅｎ－ｑｉｎ（ＤｅｐａｒｔｍｅｎｔｏｆＣｈｅｎｍｉｓｔｒｙ，ＫｅｙＬａｂｏｒａｔｏｒｙｏｆ... 详细信息

ＡＮｅｗＲｏｕｔｅｔｏＳｙｎｔｈｅｓｅｓｏｆＺｅｏｌｉｔｅＢｅｔａＤＯＮＧＸｕｅ－ｙａｎ；ＬＩＳｈｏｕ－ｇｕｉａｎｄＰＡＮＧＷｅｎ－ｑｉｎ（ＤｅｐａｒｔｍｅｎｔｏｆＣｈｅｎｍｉｓｔｒｙ，ＫｅｙＬａｂｏｒａｔｏｒｙｏｆＩｎｏｒｇａｎｉｃＨｙｄｒｏｔｈｅ...

关键词： Beta zeolite Xerogel.Non-aqueous system

蒸压加气混凝土ALC墙板生产过程中的质量控制

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砖瓦 2024年第5期 27-29页

作者：唐明阳曹攀攀刘茂东唐艳海万贵芹麻城湖北大学产业技术研究院湖北黄冈438300

阐述了ALC墙板生产过程中砂、水泥、钢筋网制作、蒸压养护、裂纹等系列质量控制方法及解决措施。

关键词：墙板质量控制原因分析解决措施

Low-dose radiation on spinal cord might be a new therapy for intractable chronic cancer and non-cancer pain

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医学争鸣 2017年第5期8卷 30-32页

作者： ZHU gui-qin HE Xue-Ming LIU Su DONG Yan-Bin LIU Yue-Peng Center for Clinical Research and Translational Medicine Lianyungang Oriental HospitalLianyungang 222042China Department of Anesthesiology Lianyungang Oriental HospitalLianyungang 222042China Department of Anesthesiology Affiliated Hospital of Xuzhou Medical UniversityXuzhou 221000China

Intractable chronic pain is a great challenge in *** sensitization based on the positive changes of dendritic spines is the main mechanism of intractable chronic *** low-dose radiation has been proved to regulate the changes of dendritic spines ***,we make a hypothesis that low-dose radiation could relieve cancer and noncancer pain through negatively regulating the shape and reducing the number and density of dendritic spines in the spinal *** method is supposed to be a new therapy for intractable chronic pain by expanding indication to non-cancer pain,translocating radiation site from where the tumor exists to special segments of spinal cord and keeping radiation dose at a low *** therapy would be reliable for relieving non-cancer pain and supply more choices for relieving cancer pain.

关键词： radiation chronic pain spinal cord dendritic spine

Study on the Surface Modification of Hydrophobic Polyacrylate Intraocular Lens

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Chinese Journal of Biomedical Engineering(English Edition) 2013年第1期22卷 29-36页

作者： TANG Hui-qin WANG gui-qin GU Han-qing Tianjin Institute of Urological Surgery The Department of Ophthalmology the Naval General Hospital

In this study, the polyacrylate intraocularr lens is irradiated by argon ion which can produce free radicals. In order to obtain better hydrophilic and lower platelets adhesion, monomer vinyl pyrrolidone (NVP) is grafted onto the hydrophobic polyacrylate intraocular lens surface in a certain reaction conditions. Specific changes in intraocular lens are detected by static contact angle (CA), scanning electron microscope (SEM) and light transmittance. The results show that this surface modification can greatly improve its hydrophilic character and surface formation.

关键词： hydrophobic polyacrylate intraocular lens vinyl pyrrolidone argon ion irradiation graft surface modification

Surface Modification of Intraocular Lenses

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Chinese Medical Journal 2016年第2期129卷 206-214页

作者： Qi Huang George Pak-Man Cheng Kin Chiu gui-qin Wang Department of Ophthalmology Navy General Hospital of PLA Beijing 100048 China Department of Ophthalmilogy Third Clinical Medical College of Southern Medical University Guangzhou Guangdong 510515 China Department of Ophthalmology Hong Kong Laser Eye Center Hong Kong 999077 China Department of Ophthalmology Laboratory of Retina Brain Research l:he Univeisity of Hong Kong Hong Kong 999077 China State Key Laboratory of Brain and Cognitive Sciences The University of Hong Kong Hong Kong 999077 China Research Centre of Heart Brain Hormone and Healthy Aging The University of Hong Kong Hong Kong 999077 China

Objective： This paper aimed to review the current literature on the surface modification ofintraocular lenses （IOLs）. Data Sources： All articles about surface modification of IOLs published up to 2015 were identified through a literature search on both PubMed and ScienceDirect. Study Selection： The articles on the surface modification of 1OLs were included, but those on design modification and surface coating were excluded. Results： Technology of surface modification included plasma, ion beam, layer-by-layer self-assembly, ultraviolet radiation, and ozone. The main molecules introduced into IOLs surface were poly （ethylene glycol）, polyhedral oligomeric silsesquioxane, 2-methacryloyloxyethyl phosphorylcholine, TiO2, heparin, F-heparin, titanium, titanium nitride, vinyl pyrrolidone, and inhibitors of cytokines. The surface modification either resulted in a more hydrophobic lens, a more hydrophilic lens, or a lens with a hydrophilic anterior and hydrophobic posterior surface. Advances in research regarding surface modification of ｜OLs had led to a better biocompatibility in both in vitro and animal experiments. Conclusion： The surface modification is an efficient, convenient, economic and promising method to improve the biocompatibility of IOLs.

关键词： Biocompatibility Capsule Biocompatibility Cataract Intraocular Lenses Surface Modification Uveal Biocompatibility

Effects of PM2.5 Exposure in Different Air Quality Grades on Daily Outpatient Visits for Childhood Asthma in Shijiazhuang, China

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Biomedical and Environmental Sciences 2018年第12期31卷 888-892页

作者： FU gui qin JIANG Yan Feng LIU Lan Ping LIU Hua Yue ZHOU Ji CUI Xiao Wei WANG Shi Gong Hebei Provincial Meteorology Service Center and Key Laboratory for Meteorology and Ecological Environment Shijiazhuang 050021 Hebei China Shanghai Key Laboratory of Meteorology and Health Shanghai 200135 China State Key Laboratory of Genetic Engineering and Collaborative Innovation Center for Genetics and Development School of Life Sciences Fudan University Shanghai 200438 China Children's Hospital of Hebei Province Shijiazhuang 050021 Hebei China Laboratory of Sichuan Province for Plateau Atmosphere and Environment College of Atmospheric Sciences Chengdu University of Information Technology Chengdu 610225 Sichuan China

Asthma is a common chronic inflammatory disorder that is more prevalent in children than in *** has seen an increasing prevalence of childhood asthma in recentdecades[1].Earlier studies have shown that air particulate matter (PM),particularly fine particulate matter(PM2.5)[2],is an important factor triggering childhood asthma. Since nationalPM2.5data were nota vailabl euntil 2013,

关键词： Effects of PM China Exposure in Different Air Quality Grades on Daily Outpatient Visits for Childhood Asthma in Shijiazhuang

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硼-碳和硼-氮量子点器件的输运特性研究

物理学报 2010年第7期59卷 4985-4988页

作者：李桂琴清华大学物理系北京100084

用第一性原理研究了硼-碳和硼-氮量子点器件的输运特性以及电流电压特性.研究结果表明相同数量原子组成的硼-碳和硼-氮器件其输运特性及电流电压特性有很大差别.硼-碳器件在Fermi能附近有较大的态密度,而硼-氮器件的能级在Fermi能附近... 详细信息

用第一性原理研究了硼-碳和硼-氮量子点器件的输运特性以及电流电压特性.研究结果表明相同数量原子组成的硼-碳和硼-氮器件其输运特性及电流电压特性有很大差别.硼-碳器件在Fermi能附近有较大的态密度,而硼-氮器件的能级在Fermi能附近有很大的间隙,Fermi能位于间隙中.从电流特性中可以看出,硼-碳器件表现出导体的特性,而硼-氮器件表现出半导体的特性.

关键词：硼-碳硼-氮量子点器件输运特性