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ω-3多聚不饱和脂肪酸类药物影响维持性血液透析患者微炎症反应的Meta分析

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中国临床药学杂志 2024年第3期33卷 168-175页

作者：王诗涵王顺李媛媛陈海霞杨文君新疆医科大学第一附属医院肾脏病中心乌鲁木齐830054

目的探讨ω-3多聚不饱和脂肪酸(ω-3 PUFAs)类药物对维持性血液透析患者微炎症反应的影响。方法检索PubMed、WebofScience和CochraneLibrary等数据库,筛选并提取2011年1月至2023年12月ω-3 PUFAs类药物对维持性血液透析患者微炎症反应... 详细信息

目的探讨ω-3多聚不饱和脂肪酸(ω-3 PUFAs)类药物对维持性血液透析患者微炎症反应的影响。方法检索PubMed、WebofScience和CochraneLibrary等数据库,筛选并提取2011年1月至2023年12月ω-3 PUFAs类药物对维持性血液透析患者微炎症反应影响的随机对照试验(RCTs)研究,应用Review Manager 5.4软件进行Meta分析。结果共纳入9篇RCTs研究。在降低维持性血液透析患者的C反应蛋白方面,ω-3 PUFAs治疗组与对照组比较差异有统计学意义[MD=-2.73,95%C(I-4.18,-1.29),Z=3.72,P=0.0002];在降低白细胞介素-6方面,2组比较差异无统计学意义[MD=-13.97,95%CI(-21.58,-6.36),Z=3.60,P=0.22];在降低肿瘤坏死因子-α方面,2组比较差异有统计学意义[MD=-9.37,95%CI(-14.46,-4.28),Z=3.61,P=0.0003]。结论ω-3 PUFAs可以明显改善维持性血液透析患者的微炎症反应。

关键词： ω-3多聚不饱和脂肪酸维持性血液透析微炎症反应 Meta分析

Poling Effects of Dielectric and Optical Properties on Pb(Zn1/3Nb2/3)1-xTixO3 Crystal

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Journal of Rare Earths 2006年第z1期24卷 166-168页

作者： Tu Chi shun wang Fu Tang Chien R R Hugo Schmidt V Chew L L Graduate Inst.of Applied Science and Engineering Fu Jen University Taipei 242 China Graduate Inst.of Applied Science and Engineering Fu Jen University Taipei 242 China Department of Physics Montana State University Bozeman MT 59717 USA Department of Physics Montana State University Bozeman MT 59717 USA Department of Mechanical Engineering National University of Singapore Singapore

Dipolar relaxation and dielectric/piezoelectric resonance in a (001)-cut Pb(Zn1/3Nb2/3)0.9Ti0.1O3 (PZNT10%) single crystal before and after electric (E)-field poling were presented. Dielectric permittivities were measured as functions of temperature, frequency and poling E-field strength. Frequency-dependent dielectric spectroscopy in the poled sample exhibits multiple piezoelectric resonances between 0.1 and 1 MHz, which can be described by the forced-damped-oscillator model. The resonant spectra show significant changes while phase transitions are taking place. The unpoled crystal shows almost no optical birefringence, indicating that the average structure symmetry is isotropic. Birefringence of the crystal is significantly enhanced by a prior E-field poling.

关键词： Pb(Zn1/3Nb2/3)1-xTixO3 dielectric permittivity phase transitions refractive indices

中空球形MoS_(2)/C复合材料的构筑及储锂性能

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常州大学学报（自然科学版） 2024年第5期36卷 1-9页

作者：何大方陆俊泓朱晔黄洁王顺常州大学石油化工学院江苏常州213164

二硫化钼(MoS_(2))是典型的层状过渡金属硫化物,作为锂离子电池负极材料具有巨大的应用前景。文章采用热分解的方法合成了中空球形的纳米MoS_(2),然后以盐酸多巴胺为碳源,制备了表面包覆碳层的中空MoS_(2)负极材料。采用XRD,Raman,SEM... 详细信息

二硫化钼(MoS_(2))是典型的层状过渡金属硫化物,作为锂离子电池负极材料具有巨大的应用前景。文章采用热分解的方法合成了中空球形的纳米MoS_(2),然后以盐酸多巴胺为碳源,制备了表面包覆碳层的中空MoS_(2)负极材料。采用XRD,Raman,SEM等方法系统表征了MoS_(2)/C复合材料的晶型结构和形貌,MoS_(2)/C负极材料的尺寸在150~250 nm,表面碳层厚度为40~70 nm,中空球形结构的纳米MoS_(2)可以有效地缓解充放电过程中的剧烈体积效应,表面碳层包覆可以有效改善MoS_(2)的导电性,同时增强了材料的结构稳定性。电化学测试表明,MoS_(2)/C负极材料初始放电比容量高达1132.1 mA·h/g,经过50次循环后,放电比容量仍有587.4 mA·h/g,显示出了在锂离子电池负极材料领域的巨大应用潜力。

关键词：锂离子电池负极材料二硫化钼碳

High-loading, ultrafine Ni nanoparticles dispersed on porous hollow carbon nanospheres for fast (de)hydrogenation kinetics of MgH_(2)

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Journal of Magnesium and Alloys 2022年第12期10卷 3354-3366页

作者： shun wang Mingxia Gao Zhihao Yao Kaicheng Xian Meihong Wu Yongfeng Liu Wenping Sun Hongge Pan State Key Laboratory of Silicon Materials Key Laboratory of Advanced Materials and Applications for Batteries of Zhejiang Province&School of Materials Science and EngineeringZhejiang UniversityHangzhou 310027P.R.China

Magnesium hydride(MgH2) is one of the most promising hydrogen storage materials for practical application due to its favorable reversibility, low cost and environmental benign;however, it suffers from high dehydrogenation temperature and slow sorption *** proper catalysts with high and sustainable activity is extremely desired for substantially improving the hydrogen storage properties of MgH2. In this work, a composite catalyst with high-loading of ultrafine Ni nanoparticles(NPs) uniformly dispersed on porous hollow carbon nanospheres is developed, which shows superior catalytic activity towards the de-/hydrogenation of MgH2. With an addition of 5wt% of the composite, which contains 90 wt% Ni NPs, the onset and peak dehydrogenation temperatures of MgH2are lowered to 190 and 242 ℃, respectively. 6.2 wt% H2is rapidly released within 30 min at 250 ℃. The amount of H2that the dehydrogenation product can absorb at a low temperature of 150 ℃ in only 250 s is very close to the initial dehydrogenation value. A dehydrogenation capacity of 6.4wt% remains after 50 cycles at a moderate cyclic regime, corresponding to a capacity retention of 94.1%. The Ni NPs are highly active,reacting with MgH2and forming nanosized Mg2Ni/Mg2NiH4. They act as catalysts during hydrogen sorption cycling, and maintain a high dispersibility with the help of the dispersive role of the carbon substrate, leading to sustainably catalytic activity. The present work provides new insight into designing stable and highly active catalysts for promoting the(de)hydrogenation kinetics of MgH2.

关键词： Hydrogen storage materials Nano-catalysis Magnesium hydride Porous hollow carbon nanospheres Ni nanoparticles

Patch-guided facial image inpainting by shape propagation

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2009年第2期10卷 232-238页

作者： Yue-ting ZHUANG Yu-shun wang Timothy K. SHIH Nick C. TANG Institute of Artilicial Intelligence School of Computer Science and Technology Zhejiang University Hangzhou 310027 China Department of Compter Science National Taipei University of Education Taipei 10671 Taiwan China Department of Comp.ter Science and Information Engineering Tamkang University Taipei 25137 Taiwan China

Images with human faces comprise an essential part in the imaging realm. Occlusion or damage in facial portions will bring a remarkable discomfort and information loss. We propose an algorithm that can repair occluded or damaged facial images automatically, named ‘facial image inpainting＇. Inpainting is a set of image processing methods to recover missing image portions. We extend the image inpainting methods by introducing facial domain knowledge. With the support of a face database, our approach propagates structural information, i.e., feature points and edge maps, from similar faces to the missing facial regions. Using the interred structural information as guidance, an exemplar-based image inpainting algorithm is employed to copy patches in the same face from the source portion to the missing portion. This newly proposed concept of facial image inpainting outperforms the traditional inpainting methods by propagating the facial shapes from a face database, and avoids the problem of variations in imaging conditions from different images by inferring colors and textures from the same face image. Our system produces seamless faces that are hardly seen drawbacks.

关键词： Image inpainting Face reconstruction Feature point extraction

Air Pollution Prediction Via Graph Attention Network and Gated Recurrent Unit

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Computers, Materials & Continua 2022年第10期73卷 673-687页

作者： shun wang Lin Qiao Wei Fang Guodong Jing Victor S.Sheng Yong Zhang Beijing Key Laboratory of Multimedia and Intelligent Software Technology Beijing Artificial Intelligence Institutethe Faculty of Information TechnologyBeijing University of TechnologyBeijing100124China Beijing Meteorological Observatory Beijing100089China Nanjing University of Information Science&Technology Nanjing210044China China Meteorological Administration Training Centre Beijing100081China Texas Tech University LubbockTX79409United States

PM2.5 concentration prediction is of great significance to environmental protection and human *** accurate prediction of PM2.5 concentration has become an important research ***,PM2.5 pollutants can spread in the earth’s atmosphere,causing mutual influence between different *** effectively capture the air pollution relationship between cities,this paper proposes a novel spatiotemporal model combining graph attention neural network(GAT)and gated recurrent unit(GRU),named GAT-GRU for PM2.5 concentration ***,GAT is used to learn the spatial dependence of PM2.5 concentration data in different cities,and GRU is to extract the temporal dependence of the long-term data *** proposed model integrates the learned spatio-temporal dependencies to capture long-term complex spatio-temporal *** that air pollution is related to the meteorological conditions of the city,the knowledge acquired from meteorological data is used in the model to enhance PM2.5 prediction *** input of the GAT-GRU model consists of PM2.5 concentration data and meteorological *** order to verify the effectiveness of the proposed GAT-GRU prediction model,this paper designs experiments on real-world datasets compared with other *** results prove that our model achieves excellent performance in PM2.5 concentration prediction.

关键词： Air pollution prediction deep learning spatiotemporal data modeling graph attention network

Simple digital PWM and PSM controlled DC-DC boost converter for luminance-regulated WLED driver

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The Journal of China Universities of Posts and Telecommunications 2009年第2期16卷 98-102页

作者： LIU Xin GUO Shu-xu CHANG Yu-chun ZHU shun-dong wang Shuai State Key Laboratory on Integrated Optoelectronics College of Electronic Science and Engineering Jilin University Changchun 130012 China

This article presents a control strategy based on simple digital pulse-width modulation （DPWM） and pulse-skip modulation （PSM） for a DC-DC boost converter, to drive a luminance-regulated white light emitting diodes （WLEDs）. The presented control strategy not only retains most of the advantages and flexibilities of traditional digital PWM, but also reduces complexity and cost. Based on analyzing the principle of the presented control strategy, the white light emitting diode （WLED） driver is designed and simulated using the 0.6 μm CMOS process. Simulation results of the boost converter show that the power efficiency is above 76% for a full load, with a peak efficiency of 88% when supply voltage varies from 2.7 V to 5.5 V. The control strategy overcomes low efficiency for PWM mode with light load.

关键词： DC-DC boost converter DPWM PSM WLED

Effect of defects and remediation measures on the internal forces caused by a local thickness reduction in the tunnel lining

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Underground Space 2022年第1期7卷 94-105页

作者： Ping Lu Dongwang Qiao Chunxiao Wu shun wang Xiaopei He Wenjun Zhang Haizuo Zhou School of Civil Engineering and Architecture Hainan UniversityHaikouHainan 570228China Institute of Geotechnical Engineering Department of Civil Engineering and Natural HazardsUniversity of Natural Resources and Life SciencesViennaFeistmantelstraße 41180 WienAustria School of Civil Engineering Tianjin UniversityTianjin 300072China

This study presents a case history of a tunnel lining with an insufficient *** effect of the defects resulting from the insuf-ficient thickness of the secondary lining and their locations on the internal forces are discussed based on numerical *** results show that defects increase the number of inflection points in the defect *** increased maximum bending moment is located on the air side of the secondary lining around the defect *** defects near the crown of the secondary lining have the most significant influence on the internal forces of the primary and secondary linings,while the defects near the sidewall of the secondary lining have a limited influence on the internal forces of the lining.A remediation measure consisting of the installation of a tertiary lining is proposed and its efficiency is *** tertiary lining significantly reduces the bending moment of the secondary lining and the axial force of the primary *** effect of the thickness and location of the tertiary lining on the tunnel performance is discussed.

关键词： Tunnel lining Insufficient-thickness defects Tertiary lining Reinforcement Numerical simulation

Precision tuning of highly efficient Pt-based ternary alloys on nitrogen-doped multi-wall carbon nanotubes for methanol oxidation reaction

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Journal of Energy Chemistry 2024年第1期88卷 242-251,I0006页

作者： Xingqun Zheng Zhengcheng wang Qian Zhou Qingmei wang Wei He shun Lu College of Safety Engineering Chongqing University of Science&TechnologyChongqing 401331China College of Chemistry and Chemical Engineering Chongqing UniversityChongqing 400044China School of Chemistry and Chemical Engineering Guizhou UniversityGuizhou 550025GuiyangChina Department of Chemistry University of Rhode IslandKingston 02881Rhode IslandUnited States Chongqing Institute of Green and Intelligent Technology Chinese Academy of SciencesChongqing 400714China

The electrochemical methanol oxidation is a crucial reaction in the conversion of renewable *** enable the widespread adoption of direct methanol fuel cells(DMFCs),it is essential to create and engineer catalysts that are both highly effective and robust for conducting the methanol oxidation reaction(MOR).In this work,trimetallic PtCoRu electrocatalysts on nitrogen-doped carbon and multi-wall carbon nanotubes(PtCoRu@NC/MWCNTs)were prepared through a two-pot synthetic *** acceleration of CO oxidation to CO_(2) and the blocking of CO reduction on adjacent Pt active sites were attributed to the crucial role played by cobalt atoms in the as-prepared *** precise control of Co atoms loading was achieved through precursor *** physicochemical techniques were employed to analyze the morphology,element composition,and electronic state of the *** investigations and theoretical calculations confirmed that the Pt_(1)Co_(3)Ru_(1)@NC/MWCNTs exhibit excellent electrocatalytic performance and durability for the process of *** enhanced MOR activity can be attributed to the synergistic effect between the multiple elements resulting from precisely controlled Co loading content on surface of the electrocatalyst,which facilitates efficient charge *** interaction between the multiple components also modifies the electronic structures of active sites,thereby promoting the conversion of intermediates and accelerating the MOR ***,achieving precise control over Co loading in PtCoRu@NC/MWCNTs would enable the development of high-performance catalysts for DMFCs.

关键词： Ternary alloys Electrocatalysts Methanol oxidation reaction Electron transfer Theoretical calculations