检索结果-南通市图书馆

Chinese Journal of Chemistry 2014年第6期32卷 491-497页

作者： zaiwei wang Hongxia Xu Zhongyi Zhang Xinhong Zhou Shuping Pang Guanglei Cui Qingdao Key Lab of Solar Energy Utilization and Energy Storage Technology Qingdao Institute of Bioenergy and Bioprocess TechnologyChinese Academy of SciencesQingdaoShandong 266101China University of Chinese Academy of Sciences Beijing 100080China Qingdao University of Science and Technology QingdaoShandong 266101China

The nanocomposites of cobalt selenide and nickel selenide(Co_(0.85)Se/Ni_(0.85)Se)were successfully fabricated on FTO glass by a facile co-electrodeposition method at ambient *** films were used as elec-trocatalysts in dye-sensitized solar cell counter electrodes for regeneration of both iodide/triiodide and cobalt(II/III)redox ***_(0.85)Se/Ni_(0.85)Se were mainly composed of nanoflakes and *** is noted that such nanostructure generated by nanoparticles embedded with 2D nanoflakes led to high active sites and was accessible to cobalt(II/III)electrolyte,delivering better catalytic activity for the reduction of larger volume cobalt(II/III).As a result,for cobalt(II/III)electrolyte,the Co_(0.85)Se/Ni_(0.85)Se based dye-sensitized solar cell performed significantly im-proved efficiency than that of Pt and Co_(0.85)***,the Co_(0.85)Se/Ni_(0.85)Se based dye-sensitized solar cell held comparable energy conversion efficiency to that of Pt and Co_(0.85)Se for iodide/triiodide electrolyte.

关键词： counter electrode dye-sensitized solar cells iodide/triiodide cobalt(II/III) metal selenide

Alpine grassland degradation intensifies the burrowing behavior of small mammals:evidence for a negative feedback loop

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Integrative Zoology 2024年第2期19卷 240-252页

作者： zaiwei wang Jiawen YAN Amy MARTIN Dianne HBRUNTON Jiapeng QU Jin-Sheng HE Weihong JI Zhibiao NAN State Key Laboratory of Herbage Improvement and Grassland Agro-Ecosystems College of Pastoral Agriculture Science and TechnologyLanzhou UniversityLanzhouChina Manaaki Whenua-Landcare Research LincolnNew Zealand School of Natural Sciences Massey University(Albany Campus)AucklandNew Zealand Key Laboratory of Adaptation and Evolution of Plateau Biota Northwest Institute of Plateau BiologyChinese Academy of SciencesXiningChina Qinghai Haibei National Field Research Station of Alpine Grassland Ecosystem Northwest Institute of Plateau BiologyChinese Academy of SciencesXiningChina Institute of Ecology College of Urban and Environmental Sciencesand Key Laboratory for Earth Surface Processes of the Ministry of EducationPeking UniversityBeijingChina

Globally,grassland degradation is an acute ecological *** alpine grassland on the Tibetan Plateau,increased densities of various small mammals in degraded grassland are assumed to intensify the degradation process and these mammals are subject to lethal ***,whether the negative impact of small mammals is solely a result of population size or also a result of activity and behavior has not been *** this study,we use plateau pika as a model to compare population size,core area of colony,and the number of burrow entrances and latrines between lightly and severely degraded *** test whether the alleged contribution of pika to grassland degradation is a result of increased population size or increased burrowing activities of individuals in response to lower food *** found that grassland degradation resulted in lower plant species richness,plant height,and ***,the overall population size of pika was not significantly affected by location in lightly and severely degraded ***,pika core areas in severely grassland degradation were significantly larger and had significantly higher densities of burrows and *** study provides convincing evidence that habitat-induced changes in the behavior of small,burrowing mammals,such as pika,can exacerbate grassland *** finding has significant implications for managing small mammals and restoring degraded grassland ecosystems.

关键词： burrowing behavior grassland degradation plateau pika population size small mammals

Altitude-dependent metabolite biomarkers reveal the mechanism of plateau pika adaptation to high altitudes

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Integrative Zoology 2023年第6期18卷 1041-1055页

作者： Xi CHEN zaiwei wang Junhu SU Huan LI Jinbo XIONG Keyi FU Zilong wang Xuefeng YUAN Ziyue SHI Xiumei MIAO Mei YANG Yunfeng YANG Zunji SHI State Key Laboratory of Herbage Improvement and Grassland Agro-ecosystems Center for Grassland MicrobiomeCollege of Pastoral Agriculture Science and TechnologyLanzhou UniversityLanzhouChina College of Grassland Science Key Laboratory of Grassland Ecosystem(Ministry of Education)Gansu Agricultural UniversityLanzhouChina School of Marine Sciences Ningbo UniversityNingboChina State Key Joint Laboratory of Environment Simulation and Pollution Control School of EnvironmentTsinghua UniversityChina

The harsh environment in the Tibetan plateau,the highest place in the world,poses thermoregulatory challenges and hypoxic stress to *** impacts of plateau environment on animal physiology and reproduction include external factors such as strong ultraviolet radiation and low temperature,and internal factors such as animal metabolites and gut ***,it remains unclear how plateau pika adapt to high altitudes through the combination of serum metabolites and gut *** this end,we captured 24 wild plateau pikas at the altitudes of 3400,3600,or 3800 m *** a Tibetan alpine *** the machine learning algorithms(random forest),we identified five biomarkers of serum metabolites indicative of the altitudes,that is,dihydrotestosterone,homo-l-arginine,alpha-ketoglutaric-acid,serotonin,and threonine,which were related to body weight,reproduction,and energy metabolism of *** metabolic biomarkers were positively correlated with Lachnospiraceae_Agathobacter,Ruminococcaceae,or Prevotellaceae_Prevotella,suggesting the close relationship between metabolites and gut *** identifying the metabolic biomarkers and gut microbiota analysis,we reveal the mechanisms of adaptation to high altitudes in plateau pika.

关键词： biomarkers gut microbiota machine learning metabolomics plateau pika

Europium-Doped CsPbI2Br for Stable and Highly Efficient Inorganic Perovskite Solar Cells

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Europium-Doped CsPbI2Br for Stable and Highly Efficient Inor...

Intermediate phase enhances inorganic perovskite and metal oxide interface for efficient photovoltaics

第六届新型太阳能电池材料科学与技术学术研讨会

作者： Wanchun Xiang zaiwei wang Anders Hagfeldt State Key Laboratory of Silicate Materials for Architectures Wuhan University of Technology Laboratory of Photomolecular Science Institute of Chemical Sciences EngineeringEcole Polytechnique Fed rale de ausanne (EPF)

All-inorganic perovskite films hold promise for improving stability of perovskite solar cells(PSCs). However, the 3D α-phase of narrow band gap inorganic perovskites is thermodynamically unstable at room temperature, limiting the development of high performance inorganic PSCs . Here, we show that europium doping of CsPbIBr stabilizes the α-phase of inorganic perovskite at room temperature. We rationalize it by using solid-state nuclear magnetic resonance and high-angle annular dark-field scanning transmission electron microscopy, which show that europium is incorporated as B cation into the perovskite lattice. We demonstrate a maximum power-conversion efficiency of 13.71% for an inorganic PSC with the CsPbEuIBr perovskite and a stable power output of 13.34%. Using electroluminescence we show that incorporation of europium reduces non-radiative recombination by eliminating tail states, resulting in high open-circuit voltage of 1.27 V. The devices retain 93% of the initial efficiency after 370 hours under 100 mW·cm continuous white light illumination under maximum power point tracking measurement.

关键词： Inorganic perovskite solar cell open circuit voltage

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

Intermediate phase enhances inorganic perovskite and metal o...

Design and Implementation of Master-Slave Control System for Nasal Continuum Minimally Invasive Surgery Robot

第七届新型太阳能电池材料科学与技术学术研讨会

作者： Jiahuan Zhang zaiwei wang Wanlin Guo Anders Hagfeldt Key Laboratory for Intelligent Nano Materials and Devices of Ministry of Education State Key Laboratory of Mechanics and Control for Mechanical StructuresInstitute of Nanoscience of Nanjing University of Aeronautics and Astronautics Laboratory of Photomolecular Science Institute of Chemical Sciences EngineeringEcole Polytechnique Fedérale de Lausanne(EPFL)

Interfacial modification is crucial to fully develop the potential of semiconductor devices,including the revolutionary halide perovskite-based optoelectronics,such as photovoltaics,light-emitting diodes,and *** all-inorganic halide perovskites,potential long-term stable photovoltaic materials,are suffering from poor interfacial contact with metal oxide charge selective layer,severely limiting the power conversion efficiency and stability of inorganic perovskite solar ***,we proposed an intermediate phase engineering strategy to improve the inorganic perovskite/metal oxide interface by utilizing volatile *** introduction of organic cations(such as methylammonium and formamidinium) which can be doped into the perovskite lattice leads to the formation of an organic-inorganic hybrid perovskite intermediate phase,promoting a robust interfacial contact through hydrogen bonding.A champion CsPb(IBr)-based device with a power conversion efficiency of 17.0% and an open-circuit voltage of 1.34 V was realized,implying that a record of over 65% of the Shockley-Queisser efficiency limit is achieved.

关键词： Intermediate phase interfacial contact inorganic perovskite solar cells

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

Design and Implementation of Master-Slave Control System for...

第43届中国控制会议

作者： zaiwei wang Qingsong Ai Zemin Liu Wei Meng Tianliang Li School of Information Engineering Wuhan University of Technology School of Mechanical and Electronic Engineering Wuhan University of Technology

To solve the problems encountered in transnasal surgery, such as instrument diameter coarseness, insufficient operation precision, restricted workspace, limited visual coverage, increased patient trauma, and heightened postoperative recurrence rates, this paper designs a robot operating system tailored for transnasal continuum minimally invasive surgery. The operation criteria for the nasal continuum minimally invasive surgical robot encompass the required reach and the bending angle within the nasal cavity and maxillary sinus lesion area. The initial step involves conducting kinematic analysis and modeling for the wire-driven flexible manipulator used in the surgical robot. Subsequently, a master-slave operating system for nasal minimally invasive surgery robot is devised with Touch master hand. The simulation results of the manipulator's trajectory tracking confirm the effectiveness of its design. Additionally, the needle threading experiment validates the efficiency of the dominant-subordinate functioning structure in the minimally invasive nasal surgery robot. The continuous minimally invasive the surgical automaton suggested in this document is compact, offering a smaller footprint, and its operational space is optimized to fulfill surgical needs effectively.

关键词： Transnasal minimally invasive surgery robot Kinematics modelling Master-slave control

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

抗结核药诱发药物性肝损伤35例临床分析

亚太传统医药 2007年第9期3卷 57-58页

作者：王再伟贵阳市第六人民医院贵州贵阳550011

目的:提高对抗结核药物诱发药物性肝病的认识。方法:回顾分析1997～2006年间收治的494例肺结核抗痨治疗诱发肝损伤的临床资料。结果:有35例(7.2%)发生药物性肝损伤,其中,27例为肝损害轻症者,进行保肝治疗,严密监测肝功能,继续抗结核治... 详细信息

目的:提高对抗结核药物诱发药物性肝病的认识。方法:回顾分析1997～2006年间收治的494例肺结核抗痨治疗诱发肝损伤的临床资料。结果:有35例(7.2%)发生药物性肝损伤,其中,27例为肝损害轻症者,进行保肝治疗,严密监测肝功能,继续抗结核治疗;8例为重症者,调整药物种类、剂量或暂停用药,进行积极护肝、保肝治疗,肝损伤治愈率达97%。结论:抗结核药物诱发的肝损害应引起重视,大部分预后良好。

关键词：抗结核药药物性肝病肝损伤

在线全文

学校读者我要写书评

暂无评论

地铁车辆空气制动管路保压试验的改进方案

机械管理开发 2021年第10期36卷 160-162页

作者：孟林王在伟郑州中车四方轨道车辆有限公司河南荥阳450100

分析了地铁车辆空气制动管路组装完毕后的保压试验操作过程,识别了其中的问题项点,提出了有针对性的优化改进方案,使保压试验结果准确可靠。

关键词：制动试验台保压试验

同方期刊数据库

CoSe/TiN同轴纳米管阵列在染料敏化太阳能电池对电极中的应用研究

在线全文

学校读者我要写书评

暂无评论

影像科学与光化学 2017年第5期35卷 758-764页

作者：徐红霞王在伟张传健崔光磊中国科学院青岛生物能源与过程研究所青岛市太阳能与储能重点实验室山东青岛266101

以钛网作为基底,采用阳极氧化、氨气氮化的方法制备了TiN纳米管,随后电沉积CoSe,制备了CoSe/TiN/Ti同轴纳米管阵列电极。循环伏安结果表明,CoSe/TiN/Ti电极对I-3具有高的电催化还原性能,这归因于高催化活性的CoSe和高导电的TiN的协同效... 详细信息

以钛网作为基底,采用阳极氧化、氨气氮化的方法制备了TiN纳米管,随后电沉积CoSe,制备了CoSe/TiN/Ti同轴纳米管阵列电极。循环伏安结果表明,CoSe/TiN/Ti电极对I-3具有高的电催化还原性能,这归因于高催化活性的CoSe和高导电的TiN的协同效应。以CoSe/TiN/Ti电极作为对电极组装染料敏化太阳能电池,电池的能量转换效率高达9.25%,比传统Pt/FTO对电极组装的电池(8.09%)高1%。这一结果为非Pt对电极纳米结构的设计提供了一个很好的思路。

关键词：对电极染料敏化太阳能电池纳米管阵列氮化钛硒化钴

基于空间句法的传统村落空间形态多尺度分析--以上饶市玉山县官溪社区为例

在线全文

学校读者我要写书评

暂无评论

华中建筑 2021年第4期39卷 102-105页

作者：马凯王在位王丝雨南昌大学建筑工程学院

传统村落形态研究一直是古村落保护规划中的重点内容,近年来空间句法被广泛应用于传统村落形态量化研究方面。以赣闽浙三省交界边贸型古村官溪传统村落为例,梳理其历史文化脉络及价值;在此基础.上,采用轴线分析、视域分析、凸空间分析... 详细信息

传统村落形态研究一直是古村落保护规划中的重点内容,近年来空间句法被广泛应用于传统村落形态量化研究方面。以赣闽浙三省交界边贸型古村官溪传统村落为例,梳理其历史文化脉络及价值;在此基础.上,采用轴线分析、视域分析、凸空间分析等方法,对官溪古村的全局形态、传统街巷、院落空间内部等三个尺度进行量化分析,对其功能特征、形态特征、社会特征作进一步剖析与验证,有利于揭示官溪古村的形成机制,为构建传统村落空间形态量化体系研究作出探索。

关键词：官溪社区空间句法传统村落多尺度分析