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脑内血肿清除术联合去大骨瓣减压术治疗高血压脑出血并脑疝患者的疗效分析

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中国实用医药 2024年第5期19卷 46-49页

作者：张重军博白县人民医院 537600

目的探析脑内血肿清除术联合去大骨瓣减压术在高血压脑出血并脑疝患者治疗中的应用效果。方法 135例高血压脑出血并脑疝患者,随机分为对照组(67例)与观察组(68例)。对照组采用脑内血肿清除术治疗,观察组患者采用脑内血肿清除术联合去... 详细信息

目的探析脑内血肿清除术联合去大骨瓣减压术在高血压脑出血并脑疝患者治疗中的应用效果。方法 135例高血压脑出血并脑疝患者,随机分为对照组(67例)与观察组(68例)。对照组采用脑内血肿清除术治疗,观察组患者采用脑内血肿清除术联合去大骨瓣减压术治疗。对比两组治疗效果,不同时间美国国立卫生研究院卒中量表(NIHSS)评分和Barthel指数,手术相关指标和住院时间,术后并发症发生情况,生活质量评分。结果观察组治疗总有效率94.12%比对照组的80.60%高(Pmin、术中脑组织获得减压时间(42.62±5.62)min、住院时间(21.29±2.68)d比对照组的(52.34±4.81)min、(14.63±4.71)min、(18.65±2.23)d长,血肿清除率(79.84±8.56)%比对照组的(51.34±4.98)%高(P<0.05)。观察组术后并发症发生率4.41%比对照组的14.93%低(P<0.05)。观察组生理功能、心理状态、生活环境及社会能力评分比对照组高(P<0.05)。结论脑内血肿清除术联合去大骨瓣减压术治疗高血压脑出血并脑疝患者效果显著,能够改善患者神经功能、生活质量、日常生活能力,降低并发症发生率,值得临床推广应用。

关键词：高血压脑出血脑疝去大骨瓣减压术脑内血肿清除术

Zwitterion-assisted transition metal dichalcogenide nanosheets for scalable and biocompatible inkjet printing

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Nano Research 2020年第10期13卷 2726-2734页

作者： Hyeokjung Lee min koo Chanho Park Madhumita Patel Hyowon Han Tae Hyun Park Pawan Kumar Won-Gun Koh Cheolmin Park Department of Materials Science and Engineering Yonsei University Seoul 03722Republic of Korea Department of Chemical and Biomolecular Engineering Yonsei UniversitySeoul 03722Republic of Korea

Inkjet printing of two-dimensional(2D)transition metal dichalcogenide(TMD)nanosheets fabricated by liquid-phase exfoliation(LPE)allows simple,mass-producible,and low-cost photo-electronic *** LPE processes involve toxic and environmentally hazardous solvents;however,dispersants have restricted the extent of applications of 2D-TMD ***,various 2D-TMD nanosheets,including MoS2,MoSe2,WS2,and WSe2,in addition to few-layered graphene,are inkjet-printed using a LPE process based on zwitterionic dispersants in *** with cationic and anionic species are water-soluble,while alkyl chain moieties associated with two ionic species adhere universally on the surface of TMD nanosheets,resulting in high throughput liquid exfoliation of the *** zwitterion-assisted TMD nanosheets in water are successtully employed as an ink without the need for additives to adjust the viscosity and surface tension of the ink for use in an office inkjet printer;this gives rise to A4 scale,large-area inkjet-printed images on diverse substrates,such as metals,oxides,and polymer substrates patchable onto human *** with conductive graphene nanosheet inks allowed the development of mechanically flexible,biocompatible-printed arrays of photodetectors with pixelated MoSe2 channels on a paper exhibiting a photocurrent ON/OFF ratio of approximately 1038 and photocurrent switching of 500 ms.

关键词： transition metal dichalcogenide nanosheets zwitterions zwitterion-assisted liquid-phase exfoliation scalable inkjet printing biocompatible

Dependence of bisphenol A photodegradation on the initial concentration of oxalate in the lepidocrocite-oxalate complex system

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Journal of Environmental Sciences 2006年第4期18卷 777-782页

作者： DONG Jun LI Fang-bai LAN chong-yu LIU Cheng-shuai LI Xiao-min LUAN Tian-gang School of Life Science Sun Yat-sen University Guangzhou 510275 China Guangdong Key Laboratory of Agricultural Environment Pollution Integrated Control Guangdong Institute of Eco-Environment and Soil Science Guangzhou 510650 China Zhongshan Institute University of Electronic Science and Technology of China Zhongshan 528402 China

To understand the degradation of endocrine disrupting chemicals （EDCs） in natural environment with existence of iron oxides and carboxylic acids, the dependence of bisphenol A （BPA） photodegradation on the initial concentration of oxalate （Cox） in lepidocrocite （y-FeOOH） aqueous suspension was investigated under both UV and visible lights in this study. Lepidocrocite powder was home-prepared by a hydrothermal process. It was found that BPA degradation was promoted greatly in the presence of oxalate owing to the formation of lepidocrocite-oxalate complex. And there was an optimal Cox, which was 2.0 and 2.4 mmol/L, under UV and visible lights, respectively. The first-order kinetic constant, k value increased 38 times from 0.17 × 10^-2 min^-1 in the absence of oxalate to 6.39 × 10^-2 min^-1 in the presence of oxalate with an optimal Cox （2.0 mmol/L） under UV irradiation, and almost 306 times from 0.02 × 10^-2 min^-1 in the absence of oxalate to 6.11 × 10^-2 min^-1 in the presence of oxalate with an optimal Cox （2.4 mmol/L） under visible irradiation. The BPA degradation rate increased and the first-order kinetic constants decreased with the increase in BPA initial concentration. The dependence of the variation of pH value, total-Fe and Fe^2＋ during the photoreaction on Cox was also investigated. The pH value increased obviously with the reaction time. Total-Fe increased dramatically at the first 5 min and then decreased quickly under UV irradiation and slowly under visible irradiation. The initial concentration of oxalate is a main factor to affect BPA photodegradation in aqueous suspension under both UV and visible lights.

关键词： bisphenol A lepidocrocite oxalate photodegradation

Characterization and Thermodynamics of Al_2O_3-MnO-SiO_2(-MnS)Inclusion Formation in Carbon Steel Billet

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Journal of Iron and Steel Research International 2015年第7期22卷 566-572页

作者： Guo-cheng WANG Sheng-li LI Xin-gang AI chong-min ZHANG Chao-bin LAI Key Laboratory of Chemical Metallurgy Engineering School of Materials and Metallurgy University of Science and Technology Liaoning School of Metallurgical and Chemical Engineering Jiangxi University of Science and Technology

A method to extract inclusion particles from solid steel by electrolysis with organic electrolyte solution was introduced; meanwhile, thermodynamics of inclusion formation was calculated using FaetSage software. The results showed that there were two kinds of inclusions in the billet, i.e. Al2O3-MnO-SiO2-MnS （AMS-MnS） and Al2O3- MnO-SiO2 （AMS）. Most of AMS-MnS inclusion particles, with diameter of 10--30 μm, showed three-layer structures： SiO2-rich core with a small quantity of Mn, intermediate AMS layer, and MnS outer layer containing small quanti- ties of A1 and O. Most AMS inclusion particles were 50--90 μm and exhibited homogeneous composition. Thermo- dynamic results indicated that SiO2-rich core could form firstly by Si reacting with O in molten steel at temperatures above 1 923 K during Si-Fe alloy addition, and then, the SiO2-rich core could react with Mn and Al to form liquid AMS enveloping the SiO2 rich core at 1823- 1873 K. MnS began to precipitate from AMS when temperature reached 1 728 K. Liquid AMS could form by coupled reaction among Si, Mn, Al and O in molten steel.

关键词： Al2 O3-MnO-SiO2 MnS extraction organic electrolyte solution thermodynamics

Parameter selection of pocket extraction algorithm using interaction interface

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2006年第9期7卷 1492-1499页

作者： KIM chong-min WON Chung-In RYU Joonghyun CHO Cheol-Hyung BHAK Jonghwa KIM Deok-Soo Department of Industrial Engineering Hanyang University Seoul 133-791 Korea Voronoi Diagram Research Center Hanyang University Seoul 133-791 Korea Samsung Electronics Suwon Gyeonggi-do 443-742 Korea Korean Bioinformation Center Korea Research Institute of Bioscience and Biotechnology Daejeon 305-806 Korea Department of Industrial Engineering Hanyang University Seoul 133-791 Korea)

Pockets in proteins have been known to be very important for the life process. There have been several studies in the past to automatically extract the pockets from the structure information of known proteins. However, it is difficult to find a study comparing the precision of the extracted pockets from known pockets on the protein. In this paper, we propose an algorithm for extracting pockets from structure data of proteins and analyze the quality of the algorithm by comparing the extracted pockets with some known pockets. These results in this paper can be used to set the parameter values of the pocket extraction algorithm for getting better results.

关键词： Pocket Protein Interaction interface Protein interaction Voronoi diagram

Combining Ability and Genetic Effects of Germination Traits of Brassica napus *** Waterlogging Stress Condition

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Agricultural Sciences in China 2010年第7期9卷 951-957页

作者： CHENG Yong GU min CONG Ye ZOU chong-shun ZHANG Xue-kun WANG Han-zhong Oil Crops Research Institute Chinese Academy of Agriculture Sciences/Key Laboratory for Oil Crop Biology Ministry of Agriculture Wuhan 430062. P.R.China Agricultural College Yangtze University Jingzhou 434023 P.R. China

Cross combinations from six rapeseed cultivars and lines were evaluated under waterlogging stress condition in order to understand the genetic mechanism of waterlogging tolerance of Brassica napus *** provide reasonable improvement *** were six germination traits investigated on combining ability and heritability using complete diallel crossing method designed for 30 combinations from those six cultivars and *** traits included relative root length,stem length,fresh weight per plant,survival rate,electrical conductivity,and vigor *** flooding treatment,the six traits of parents and F1 were *** general combining ability（GCA） and special combining ability（SCA） of germination traits were analyzed using Griffing I *** 30 cross combinations,the GCA was significantly different among six waterlogging resistance *** SCA of these traits was significantly different except the SCA of electrical *** a representative trait of waterlogging tolerance in rapeseed,relative vigor index had the highest narrow heritability and relatively low broad *** cultivars Zhongshuang 9 and P79 had higher tolerance potential to waterlogging *** can be concluded that combining ability and genetic effects of relative vigor index during germination stage could be used to identify the waterlogging tolerance of rapeseed in breeding program.

关键词： Brassica napus L. relative vigor index waterlogging tolerance germination trait combining ability diallel crossing

Effect of orbital errors on the geosynchronous circular synthetic aperture radar imaging and interferometric processing

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Journal of Zhejiang University-Science C(Computers and Electronics) 2011年第5期12卷 404-416页

作者： Lei-lei KOU Xiao-qing WANG Mao-sheng XIANG Jin-song chong min-hui ZHU National Key Laboratory of Microwave Imaging Technology Institute of Electronics Beijing 100190 China Graduate University of Chinese Academy of Sciences Beijing 100190 China

The geosynchronous circular synthetic aperture radar (GEOCSAR) is an innovative SAR system,which can produce high resolution three-dimensional (3D) images and has the potential to provide 3D deformation *** an orbit altitude of approximately 36 000 km,the orbit motion and orbit disturbance effects of GEOCSAR behave differently from those of the conventional spaceborne *** this paper,we analyze the effects of orbit errors on GEOCSAR imaging and interferometric ***,we present the GEOCSAR imaging geometry and the orbit errors model based on perturbation ***,we give the GEOCSAR signal formulation based on imaging geometry,and analyze the effect of the orbit error on the output focused *** interferometric processing on the 3D reconstructed images,the relationship between satellite orbit errors and the interferometric phase is *** demonstrate the effects of orbit errors on the GEOCSAR images,interferograms,and the *** conclusions are that the required relative accuracy of orbit estimation should be at centimeter level for GEOCSAR imaging at L-band,and that millimeter-scale accuracy is needed for GEOCSAR interferometric processing.

关键词： Geosynchronous circular synthetic aperture radar (GEOCSAR) Orbit error Imaging Interferometric processing

三峡水库蓄水过程中洞庭湖流量演变及生态效应

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长江科学院院报 2024年第9期41卷 185-191,199页

作者：曹艳敏王崇宇黎小东卢留虎韩帅张汉奇刘康贵湖南城市学院土木工程学院湖南益阳413000 湖南省水务规划设计院有限公司长沙410008 湖南省水利水电勘测设计规划研究总院有限公司长沙410035

为科学定量评价三峡水库运行过程对洞庭湖径流及生态特征的影响,收集城陵矶、石龟山、南咀、小河咀4个水文站1988—2020年逐日流量数据,应用IHA-RVA法和Shannon指数法对三峡水库试运行阶段(2003—2008年)和三峡试运行后阶段(2009—2020... 详细信息

为科学定量评价三峡水库运行过程对洞庭湖径流及生态特征的影响,收集城陵矶、石龟山、南咀、小河咀4个水文站1988—2020年逐日流量数据,应用IHA-RVA法和Shannon指数法对三峡水库试运行阶段(2003—2008年)和三峡试运行后阶段(2009—2020年)流量演变和生态效应进行定量分析。结果表明:①三峡水库运行过程中汇入洞庭湖流量占比方面,湘、资、沅、澧四水占比持续提高,荆江三口占比持续下降;②三峡水库蓄水试运行阶段洞庭湖区水文站整体流量改变度和IHA高度改变指标个数高于三峡水库试运行后阶段,且城陵矶和石龟山整体改变度分别达到67.27%和69.55%,形成高度改变;③三峡水库试运行阶段,三峡水库蓄水下游流量上涨次数及上涨幅度减少,连续日流量正差异值R rate减少,洞庭湖Shannon指数均有下降趋势;三峡水库试运行后阶段按“枝城调度”规则运行保证三峡次数下游有中小洪水过程并增加下游枯水补给,R rate增加、Shannon指数有所回升。研究成果可为洞庭湖水安全和水生态健康提供科学依据。

关键词：洞庭湖变动范围法(RVA) 水文改变度 Shannon指数

Comparative study of tensile and high-cycle fatigue properties of extruded AZ91 and AZ91-0.3Ca-0.2Y alloys

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Journal of Materials Science & Technology 2021年第34期93卷 41-52页

作者： Ye Jin Kim Young min Kim Seong-Gu Hong Dae Woong Kim chong Soo Lee Sung Hyuk Park School of Materials Science and Engineering Kyungpook National UniversityDaegu 41566Republic of Korea Implementation Research Division Korea Institute of Materials ScienceChangwon 51508Republic of Korea Division of Industrial Metrology Korea Research Institute of Standards and ScienceDaejeon 34113Republic of Korea Energy Infra Material Measure Team Korea Research Institute of Standards and ScienceDaejeon 34113Republic of Korea Graduate Institute of Ferrous Technology Pohang University of Science and Technology.Pohang 37673Republic of Korea

Mg-Al-Zn-Ca-Y alloys with excellent ignition and corrosion resistances—termed SEN alloys(where the letters"S,""E,"and"N"stand for stainless,environmentally friendly,and non-flammable,respectively)—have been developed *** this study,the microstructure,tensile properties,and high-cycle fatigue properties of an extruded Mg-9.0Al-0.8Zn-0.1Mn-0.3Ca-0.2Y(SEN9)alloy are investigated and compared with those of a commercial Mg-9.0Al-0.8Zn-0.1Mn(AZ91)alloy extruded under the same *** the extruded SEN9 alloy and the extruded AZ91 alloy have a fully recrystallized structure comprising equiaxed grains,but the former has a smaller average grain size owing to the promoted dynamic recrystallization during *** extruded AZ91 alloy contains coarse Mg_(17)Al_(12) discontinuous precipitate(DP)bands parallel to the extrusion direction,which are formed during its cool down after *** contrast,the extruded SEN9 alloy contains relatively fine undissolved Al_(2)Ca,Al_(8)Mn_(4)Y,and Al_(2)Y second-phase particles,which are formed during the solidification stage of the casting *** tensile strength of the extruded SEN9 alloy,which has finer grains and more abundant particles,is slightly higher than that of the extruded AZ91 ***,the difference in their strengths is relatively small because the stronger solid-solution hardening and precipitation hardening effects in the extruded AZ91alloy offset the stronger grain-boundary hardening and dispersion hardening effects in the extruded SEN9alloy to some *** tensile elongation of the extruded AZ91 alloy is significantly lower than that of the extruded SEN9 alloy because the large cracks formed in the DP bands in the former cause its premature *** the extruded SEN9 alloy has higher tensile properties than the extruded AZ91alloy,the high-cycle fatigue life and fatigue strength of the former are shorter and lower,respectively,than those of the *** DP bands in the extruded

关键词： Mg-Al-Zn-Ca-Y alloy Extrusion Tensile properties High-cycle fatigue Crack source