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Propofol vs midazolam plus fentanyl for upper gastrointestinal endomicroscopy:A randomized trial

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World Journal of Gastroenterology 2012年第15期18卷 1814-1821页

作者： Xiu-li Zuo Zhen li Xiao-Ping liu Chang-Qing li Rui Ji peng Wang Cheng-Jun Zhou Han liu Yan-Qing li Department of Gastroenterology QiluHospitall Shandong University Jinan 250012 Shandong Province China Department of Anesthesiology Qilu Hospital Shandong University Jinan 250012 Shandong Province China Department of Pathology the Second Affiliated Hospital Shandong University Jinan 250033 Shandong Province China

AIM:To compare the endomicroscopic image quality of integrated confocal laser endomicroscopy(iCLE)and sedation efficacy of propofolvs midazolam plus fentanyl(M/F).METHODS:Consecutive outpatients undergoing iCLE were prospectively recruited and randomized to the propofol group(P group)or M/F *** patient,performing endoscopist and endoscopic assistant were blinded to the *** quality of endomicro-scopic images and anesthetic efficacy outcomes were blindly evaluated after iCLE ***:There were significantly more good quality endomicroscopic images in the propofol group than in the M/F group(72.75%vs 52.89%,Plity endomicroscopic images,and may result in improved procedural efficacy and diagnostic accuracy during iCLE examination.

关键词： Confocal laser endomicroscopy Conscious sedation Randomized trial Sensitivity and specificity Image quality

Preparation and Performance of Organically Modified Montmorillonite Composite Separation Membrane

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Journal of Wuhan University of Technology(Materials Science) 2024年第5期39卷 1100-1107页

作者： liU peng BI Yuanyuan CHEN Shaowei WAN Ye YU Yunwu FANG Yanfeng GU Yaxin li Feihong TANG Ning li Xiangyu School of Materials Science and Engineering Shenyang Jianzhu UniversityShenyang 110168China

A new composite separation membrane was developed by using organically modified montmorillonite(OMMT)as an *** effects of OMMT on the modification and properties of PVDF composite membranes were *** is found that different kinds and amounts of OMMT into the casting solution can obviously change the pure water flux,separation performance and hydrophilicity of composite membrane in varying *** the TA/PDA-MMT was 0.5 wt%,the pure water flux of the membrane reached the maximum,which was 584.7 L/(m^(2)·h),about 6 times that of the original *** OMMT/PVDF composite membrane had good hydrophilicity and stability in the treatment of oily *** development of novel OMMT/PVDF composite membrane will provide a new idea for solving the problem of oily wastewater treatment.

关键词： membrane montmorillonite composite wastewater

Microstructure-based Simulation of Plastic Deformation Behavior of SiC Particle Reinforced Al Matrix Composites

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Chinese Journal of Aeronautics 2009年第6期22卷 663-669页

作者： Zhang peng li Fuguo School of Materials Science and Engineering Northwestern Polytechnical University Xi 'an 710072 China

This article, in order to unearth the deformation mechanism of particle reinforced metal matrix composites, establishes a finite element model （FEM） based on the actual microstructures. It finds out and analyzes the distribution of von Mises effective stress, strain and the maximum principal stress in the matrix and particles. Moreover, the overall stress and strain in the matrix and composites are calculated. By comparison, a tiny discrepancy exists between the experimental results and the simulation with respect to flow stresses. The effects of deformation parameters, such as temperature and strain rate, on the strengthening mechanism are explored and proved to be weak.

关键词： metal matrix composites deformation simulation cell model microstructure

Variable stars in the 50BiN open cluster survey.Ⅱ.NGC 869

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Research in Astronomy and Astrophysics 2021年第9期21卷 146-152页

作者： Jing Zhuo li-cai Deng Kun Wang Chang-Qing Luo Xiao-Bin Zhang Cheng-Yuan li Chao liu Xiao-Dian Chen Physics and Space Science College China West Normal UniversityNanchong 637009China Senior Middle School of Hangzhou Hangzhou 310016China Key Laboratory of Optical Astronomy National Astronomical ObservatoriesChinese Academy of SciencesBeijing 100101China University of Chinese Academy of Sciences Beijing 100049China School of Physics and Astronomy Sun Yat-sen UniversityZhuhai 519082China

This work presents a time-series photometric variability survey of the young open cluster NGC *** than 13000 CCD frames in the BV filters were collected on 19 nights between 2014 November 6 and 2014 December *** a 20’×20’field centered on the cluster,we detected a total of 28 stars showing photometric variability,12 of which are new *** classifications and memberships of the variable stars are discussed according to the behaviors and periods of the light curves as well as their positions on the H-R *** results conclude that 22 variable stars are probable members of the cluster while six other stars belong to the field star *** are categorized as 18 pulsating variable stars(fourβCep,seven SPB,oneβCep/SPB,four Be stars,and twoδSct/γDor candidates),seven eclipsing binaries(five EA and two EB)and three unknown type stars.

关键词： open clusters and associations:individual(NGC 869) stars:variables:general

Four new species of sanguinolenta-group of the genus Macrophya (Hymenoptera:Tenthredinidae) from China

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Zoological Systematics 2014年第4期39卷 520-533页

作者： Ze-Jian li Meng-Meng liu Mei-cai Wei lishui Academy of Forestry Lab of Insect Systematics and Evolutionary Biology Central South University of Forestry and Technology

Four new species of the sanguinolenta-group of the genus Macrophya from China are described, namely M. cheni sp. nov., M. yichangensis sp. nov., M. elegansoma sp. nov., and M. reni sp. nov. The species M. cheni sp. nov. and M. yichangensis sp. nov. belong to the koreana-subgroup, while M. elegansoma sp. nov. and M. reni sp. nov. belong to the sanguinolenta-subgroup. The division of the koreana and sanguinolenta-subgroups are briefly discussed. Keys to all known species of the koreana and sanguinolenta-subgroups from China are provided, respectively. The type specimens of new species are deposited in the Insect Collection of Central South University of Forestry and Technology, Changsha, Hunan, China.

关键词： Symphyta Tenthredinoidea Macrophya taxonomy

Combined influence of nonlinearity and dilation on slope stability evaluated by upper-bound limit analysis

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Journal of Central South University 2017年第7期24卷 1602-1611页

作者： TANG Gao-peng ZHAO lian-heng li liang CHEN Jing-yu School of Civil Engineering Central South UniversityChangsha 410075China

The combined influence of nonlinearity and dilation on slope stability was evaluated using the upper-bound limit analysis *** mechanism of slope collapse was analyzed by dividing it into arbitrary discrete soil blocks with the nonlinear Mohr–Coulomb failure criterion and nonassociated flow *** multipoint tangent(multi-tangent) technique was used to analyze the slope stability by linearizing the nonlinear failure criterion.A general expression for the slope safety factor was derived based on the virtual work principle and the strength reduction technique,and the global slope safety factor can be obtained by the optimization method of nonlinear sequential quadratic *** results show better agreement with previous research result when the nonlinear failure criterion reduces to a linear failure criterion or the non-associated flow rule reduces to an associated flow rule,which demonstrates the rationality of the presented *** safety factors calculated by the multi-tangent inclined-slices technique were smaller than those obtained by the traditional single-tangent inclined-slices *** results show that the multi-tangent inclined-slices technique is a safe and effective method of slope stability limit *** combined effect of nonlinearity and dilation on slope stability was analyzed,and the parameter analysis indicates that nonlinearity and dilation have significant influence on the result of slope stability analysis.

关键词： slope stability analysis nonlinear failure criterion non-associated flow rule multipoint tangent technique upper-bound limit analysis theorem

Neurocircuitry of Predatory Hunting

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Neuroscience Bulletin 2023年第5期39卷 817-831页

作者： Zheng-Dong Zhao li Zhang Xinkuan Xiang Daesoo Kim Haohong li peng Cao Wei L.Shen School of life Science and Technology ShanghaiTech UniversityShanghai 201210China Boston Children's Hospital Harvard Medical SchoolBostonMA 02115USA National Institute of Biological Sciences(NIBS) Beijing 102206China Britton Chance Center for Biomedical Photonics Wuhan National Laboratory for OptoelectronicsHuazhong University of Science and TechnologyWuhan 430074China MoE Key Laboratory for Biomedical Photonics Collaborative Innovation Center for Biomedical EngineeringSchool of Engineering SciencesHuazhong University of Science and TechnoiogyWuhan 430074China Department of Cognitive Brain Science Korea Advanced Institute of Science&TechnologyDaejeon 34141South Korea MOE Frontier Research Center of Brain&Brain-machine Integration School of Brain Science and Brain MedicineZhejiang UniversityHangzhou 310058China Affiliated Mental Health Centre and Hangzhou Seventh People's Hospital Zhejiang University School of MedicineHangzhou 310013China

Predatory hunting is an important type of innate behavior evolutionarily conserved across the animal *** is typically composed of a set of sequential actions,including prey search,pursuit,attack,and *** behavior is subject to control by the nervous *** studies used toads as a model to probe the neuroethology of hunting,which led to the proposal of a sensory-triggered release mechanism for hunting *** recent stud-ies have used genetically-trackable zebrafish and rodents and have made breakthrough discoveries in the neuroethol-ogy and neurocircuits underlying this ***,we review the sophisticated neurocircuitry involved in hunting and summarize the detailed mechanism for the circuitry to encode various aspects of hunting neuroethology,including sensory processing,sensorimotor transformation,motivation,and sequential encoding of hunting *** also discuss the overlapping brain circuits for hunting and feeding and point out the limitations of current *** propose that hunting is an ideal behavioral paradigm in which to study the neuroethology of motivated behaviors,which may shed new light on epidemic disorders,including bingeeating,obesity,and obsessive-compulsive disorders.

关键词： Predatory hunting Neurocircuits Sensory processing Sensorimotor transformation Appetitive motivation Sequential encoding

Characterization of the soybean Gm ALMT family genes and the function of Gm ALMT5 in response to phosphate starvation

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Journal of Integrative Plant Biology 2018年第3期60卷 216-231页

作者： Wenting peng Weiwei Wu Junchu peng Jiaojiao li Yan lin Yanan Wang Jiang Tian lili Sun Cuiyue liang Hong liao State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources Root Biology Center South China Agricultural University Root Biology Center Hai Xia Institute of Science and Technology Fu Jian Agricultural and Forest University

A potential mechanism to enhance utilization of sparingly soluble forms of phosphorus （P） is the root secretion of malate, which is mainly mediated by the ALMT gene family in plants. In this study, a total of 34 GmALMT genes were identified in the soybean genome. Expression patterns diverged considerably among GmALMTs in response to phosphate （Pi） starvation in leaves, roots and flowers, with expression altered by P availability in 26 of the ：34 GmALMTs. One root-specific GmALMT whose expression was significantly enhanced by Pi-starvation, GmALMTS, was studied in more detail to determine its possible role in soybean P nutrition. Analysis of GmALMT5 tissue expression patterns, subcellular localization, and malate exudation from transgenic soybean hairy rootsoverexpressing GmALMT5, demonstrated that GmALMT5 is a plasma membrane protein that mediates malate efflux from roots. Furthermore, both growth and P content of transgenic Arabidopsis overexpressing GmALMT5 were significantly increased when sparingly soluble Ca-P was used as the external P source. Taken together, these results indicate that members of the soybean GmALMT gene family exhibit diverse responses to Pi starvation. One member of this family, GmALMT5, might contribute to soybean P efficiency by enhancing utilization of sparingly soluble P sources under P limited conditions.

关键词： Leon Kochian University of Saskatchewan Canada

Composite structure Al_(2)O_(3)/Al_(2)O_(3)-YAG:Ce/YAG ceramics with high color spatial uniformity for white laser lighting

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Journal of Advanced Ceramics 2024年第2期13卷 189-197页

作者： pengfei Sang Le Zhang Jian Kang Mingzhou li Shiwei Chen peng Yang Bingheng Sun Yang li Wieslaw Strek Hao Chen Jiangsu Key Laboratory of Advanced Laser Materials and Devices School of Physics and Electronics EngineeringJiangsu Normal UniversityXuzhou 221116China Jiangsu Xiyi Advanced Materials Research Institute of Industrial Technology Xuzhou 221400China Xuzhou EAGLED Technology Co. Ltd.Xuzhou 221116China Xuzhou Kangna Advanced Materials Technology Co. Ltd.Xuzhou 221116China Xuzhou Fuchang Electronic Technology Co. Ltd.Xuzhou 221116China Shanghai Institute of Optics Fine Mechanics Chinese Academy of SciencesShanghai 201800China School of Material Science and Engineering Shanghai Institute of TechnologyShanghai 201418China State Key Laboratory of Crystal Materials Shandong UniversityJinan 250100China Institute of Low Temperature and Structure Research Polish Academy of SciencesWroclaw 50-422Poland

Composite ceramic phosphor(CCP)is a candidate light-conversion material to obtain the high-quality laser lighting *** based on the transmissive configuration model could not simultaneously meet the requirements of angular color uniformity and high thermal *** this study,a novel composite structure ceramic was designed,including Al_(2)O_(3)-YAG:Ce/YAG layered ceramic with a size of 1 mm×1 mm for lighting,and Al_(2)O_(3) ceramic(φ=16.0 mm)was used as the wrapping material due to its outstanding thermal *** prepared ceramics exhibited excellent thermal performance and no yellow ring *** this design,we achieved the match of the intensity distribution of the blue and yellow lights,resulting in a high angular color uniformity of 0.9 with a view angle of±80°.All ceramics showed no luminous saturation phenomenon,even the laser power density was increased up to 47.51 W/mm^(2).A high-brightness white-light source with a luminous flux of 618 lm,a luminous efficiency of 126 lm/W,a CCT of 6615 K,and a CRI of 69.9 was obtained in the transmissive *** particular,the surface temperature of the ceramic was as low as 74.1℃ under a high laser radiation(47.51 W/mm^(2)).These results indicate that Al_(2)O_(3)/Al_(2)O_(3)-YAG:Ce/YAG composite structure ceramic is a promising luminescent material in the high-power laser lighting applications.

关键词： Al_(2)O_(3)/Al_(2)O_(3)-YAG:Ce/YAG angular color uniformity high thermal stability high-power laser lighting