检索结果-南通市图书馆

Interlayer and intralayer co-modified flexible V_(2)CT_(X) MXene@SWCNT films for high-power li-ion capacitors

Journal of Energy Chemistry 2023年第4期79卷 101-109页

作者： Wanli Wang Min Feng Enze Hu Zhaowei Hu Cheng Fan huifang li Peng Wang Xiaojun Wang Zhiming liu College of Electromechanical Engineering Shandong Engineering Laboratory for Preparation and Application of High-performance Carbon-MaterialsQingdao University of Science&TechnologyQingdao 266061ShandongChina Qingdao Industrial Energy Storage Research Institute Qingdao Institute of Bioenergy and Bioprocess Technology Chinese Academy of Sciences Qingdao 266101ShandongChina Key Laboratory of Advanced Energy Materials Chemistry(Ministry of Education) College of ChemistryNankai UniversityTianjin 300071China

As an emerging member of the two-dimensional(2D)material family,V_(2)CT_(X)MXene shows great potential in the application of lithium-ion capacitors(liCs)due to its unique structure and excellent electrical ***,severe nanosheets stacking and intra-layer transport barriers have limited the further development of V_(2)CT_(X)MXene-based ***,we prepared Kions and–O functional group co-modified V_(2)CT_(X)MXene(VCT-K)and further incorporated it with single-walled carbon nanotube(SWCNT),obtaining freestanding V_(2)CT_(X)composite films(VCT-K@C)with the 3D conductive ***,K+ions were introduced into V_(2)CT_(X)MXene to stabilize the interlayer structure and prevent the aggregation of nanosheets,the terminal group of–O was controllably modified on the surface of MXene to improve the li+ions storage reversible capacities and the SWCNT acted as the bridge between MXene nanosheets to opens up the channels for ion/electron transportation in the longitudinal *** from the synergistic effect of VCT-K and SWCNT,the VCT-K@C exhibits superior reversible specific capacities of 671.8 mA h g^(-1)at 0.1 A g^(-1)and 318 mA h g^(-1)at 1.0 A g^(-1).Furthermore,the assembled liCs with VCT-K@C anode coupling activated carbon(AC)cathode deliver an outstanding power density of 19.0 kW kg^(-1)at 67.4 Wh kg^(-1),a high energy density of 140.5 Wh kg^(-1)at 94.8 W kg^(-1)and a stable capacitance retention of 86%after 6000 cycles at 10 A g^(-1).Such unique structures and excellent electrochemical properties are expected to pave the way for the large-scale application in liCs of MXene-based materials.

关键词： Interlayer and intralayer co-modification MXene SWCNT Flexible self-supported anodes lithium-ion capacitors

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

TabHLH95-TaNF-YB1 module promotes grain starch synthesis in bread wheat

引用

Journal of Genetics and Genomics 2023年第11期50卷 883-894页

作者： Yunchuan liu Wei Xi Xiaolu Wang huifang li Hongxia liu Tian li Jian Hou Xu liu Chenyang Hao Xueyong Zhang Key Laboratory of Crop Gene Resources and Germplasm Enhancement Ministry of Agriculture and Rural Affairs/The National Key Facility for Crop Gene Resources and Genetic Improvement/Institute of Crop SciencesChinese Academy of Agricultural SciencesBeijing 100081China State Key Laboratory of Aridland Crop Science(Gansu Agricultural University)/Gansu Provincial Key Laboratory of Crop Improvement&Germplasm Enhancement LanzhouGansu 730070China College of Agronomy Gansu Agricultural UniversityLanzhouGansu 730070China

Starch is the most abundant substance in wheat(Triticum aestivum L.)endosperm and provides the major carbohydrate energy for human daily *** synthesis-related(SSR)genes are believed to be spatiotemporally specific,but their transcriptional regulation remains unclear in ***,we investigate the role of the basic helix-loop-helix(bHLH)transcription factor TabHLH95 in starch ***95 is preferentially expressed in the developing grains in wheat and encodes a nucleus localized protein without autoactivation *** Tabhlh95 knockout mutants display smaller grain size and less starch content than wild type,whereas overexpression of TabHLH95 enhances starch accumulation and significantly improves thousand grain *** analysis reveals that the expression of multiple SSR genes is significantly reduced in the Tabhlh95 ***95 binds to the promoters of ADP-glucose pyrophosphorylase large subunit 1(AGPL1-1D/-1B),AGPL2-5D,and isoamylase(ISA1-7D)and enhances their ***,TabHLH95 interacts with the nuclear factor Y(NF-Y)family transcription factor TaNF-YB1,thereby synergistically regulating starch *** results suggest that the TabHLH95-TaNF-YB1 complex positively modulates starch synthesis and grain weight by regulating the expression of a subset of SSR genes,thus providing a good potential approach for genetic improvement of grain productivity in wheat.

关键词： Starch synthesis TabHLH95-TaNF-YB1 module Synergistic regulation Grain weight Wheat

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Functional markers developed from TaGS3, a negative regulator of grain weight and size, for marker-assisted selection in wheat

引用

The Crop Journal 2020年第6期8卷 943-952页

作者： Wei Zhang huifang li liya Zhi Qiannan Su Jiajia liu Xiaoli Ren Deyuan Meng Na Zhang Jun Ji Xueyong Zhang Junming li Center for Agricultural Resources Research Institute of Genetics and Developmental BiologyChinese Academy of SciencesShijiazhuang 050022HebeiChina Key Laboratory of Crop Gene Resources and Germplasm Enhancement Ministry of Agriculture/The National Key Facility for Crop Gene Resources and Genetic ImprovementInstitute of Crop SciencesChinese Academy of Agricultural SciencesBeijing 100081China Hebei University of Economics and Business Shijiazhuang 050061HebeiChina State Key Laboratory of Plant Cell and Chromosome Engineering Chinese Academy of SciencesBeijing 100101China The Innovative Academy of Seed Design Chinese Academy of SciencesBeijing 100101China

The TaGS3 homoeologous genes(homoeologs)located on chromosomes 7 A,4 A,and7 D in hexaploid wheat were *** expression analysis of the three Ta GS3 homoeologs revealed that the expression levels of TaGS3-4 A and TaGS3-7 D in developing grains were higher than that of TaGS3-7 *** evidence showed that Ta GS3 was a negative regulator of grain weight and grain *** polymorphic sites and five haplotypes were detected in TaGS3-4 *** molecular markers were developed to distinguish the five *** analysis using 260 accessions from Chinese wheat mini-core collection(MCC)indicated that TaGS3-4 A affected thousand grain weight(TGW)and grain length(GL).HAP-4 A-1 and HAP-4 A-2 were favorable haplotypes that increased TGW and GL and had undergone strong selection during domestication of *** addition,interaction of the TaGS3-4 A and TaGS3-7 D homoeologs had significant additive effects on the grain ***-4 A-1/Hap-7 D-2 was the best haplotype combination in increasing TGW and *** frequencies and geographic distributions of favorable TaGS3 haplotypes among 1388 wheat accessions from worldwide sources provided clues for selection of yield-related *** findings demonstrated that TaGS3-4 A had significant effects on TGW and ***-assisted selection of HAP-4 A-1/2 combined with HAP-7 D-2 has potential to increase wheat yields.

关键词： TaGS3 Grain yield Haplotype MAS Triticum aestivum

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

On Fault Prediction Based on Industrial Big Data 36

On Fault Prediction Based on Industrial Big Data

引用

第36届中国控制会议

作者： Qingsong Han huifang li Wei Dong Yafei Luo Yuanqing Xia School of Automation Beijing Institute of Technology

ISBN: (纸本)9781538629185

Fault-free production is a basic characteristic of intelligent *** existing model-based fault prediction methods depend much more on the precise models of the equipment,while the data-driven ones can only use some basic state data with very limited *** features make them not only impractical,but also not able to meet the real-time requirement of analyzing industrial big data under the environment of Industrial Internet of *** paper presents a fault prediction method based on industrial big data,which directly excavates the relationship between the data such as the sound and status data,and the equipment faults by machine learning *** is more,the equipment state can be monitored in real time leading to the failure would be checked out *** simulation result shows that our method has high accuracy and real-time features compared with the existing ones.

关键词： Intelligent workshop industrial big data fault prediction neural network

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

Single molecular insight into steric effect on C-terminal amino acids with various hydrogen bonding sites

引用

Chinese Chemical Letters 2022年第10期33卷 4649-4654页

作者： Yunzhi Xie Chunhua liu linxiu Cheng Yulan Fan huifang li Wei liu Lei Zhu Xun li Ke Deng Qingdao Zeng Shoufa Han State Key Laboratory for Physical Chemistry of Solid Surfaces Department of Chemical BiologyCollege of Chemistry and Chemical EngineeringThe Key Laboratory for Chemical Biology of Fujian ProvinceThe MOE Key Laboratory of Spectrochemical Analysis&Instrumentationand Innovation Center for Cell Signaling NetworkXiamen UniversityXiamen 361005China Jiangxi Provincial Key Laboratory of Low-Carbon Solid Waste Recycling School of Geography and Environmental EngineeringGannan Normal UniversityGanzhou 341000China Jiangxi Key Laboratory of Organo-Pharmaceutical Chemistry Chemistry and Chemical Engineering CollegeGannan Normal UniversityGanzhou 341000China CAS Key Laboratory of Standardization and Measurement for Nanotechnology CAS Center for Excellence in NanoscienceNational Center for Nanoscience and Technology(NCNST)Beijing 100190China

Amino acids are basic units to construct a protein with the assistance of various *** this building process,steric hindrance derived from amino acid side groups or side chains is a factor that could not be *** this contribution,adsorption behaviors of C-terminal amino acid derivatives with amino acid residues fused in 3,4,9,10-perylenetetracarboxylic dianhydride were investigated by scanning tunneling microscopy(STM)and density functional theory(DFT)calculations at various liquid/solid *** results at 1-phenyloctane/HOPG interface show that N,N'-3,4,9,10-perylenedicarboximide(GP)and N,N'-methyl-3,4,9,10-perylenedicarboximide(AP)formed linear and herringbone structures,*** driving force could be attributed to different H-bonding sites induced by steric hindrance at side groups.N,N'-Benzyl-3,4,9,10-perylenedicarboximide(PP)generates both linear and herringbone structures because steric hindrance changes the H-bonding sites between PP molecules,whereas N,N'-isopropyl-3,4,9,10-perylenedicarboximide(LP)failed to be imaged because of strong steric hindrance coming from larger side *** further investigate the impact of steric hindrance,we utilized octanoic acid(OA)as solvent to capture the adsorption details of LP and *** found that OA molecules drag PP and LP molecules in a different direction to generate linear structure,impeding the molecular *** structure–solvent relationship shows that the steric hindrance is brought by the large side group,which makes it easier to recognize OA molecules at the *** results demonstrate that steric effect plays a significant role in altering interaction sites of the compounds during the adsorption process at the liquid/solid interface.

关键词： C-terminal amino acids Steric effect Bonding site Scanning tunneling microscopy DFT calculations

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Anisotropic solution growth of 1D/2D N-rich carbon

Advanced Powder Materials

引用

Advanced Powder Materials 2023年第4期2卷 124-133页

作者： Zongge li Chenwei Wang Anuj Kumar Hongrui Jia Yin Jia huifang li Lu Bai Guoxin Zhang Xiaoming Sun College of Energy Storage Technology Shandong University of Science and TechnologyQingdao266590China Key Laboratory of Standardization and Measurement for Nanotechnology National Center for Nanoscience and TechnologyChinese Academy of SciencesBeijing100190China State Key Laboratory of Chemical Resource Engineering College of ChemistryBeijing University of Chemical TechnologyBeijing100029China Department of Chemistry Institute of Humanities and Applied ScienceGLA UniversityMathura281406India College of Electromechanical Engineering Shandong Engineering Laboratory for Preparation and Application of High-performance Carbon-MaterialsQingdao University of Science&TechnologyQingdao266061China College of Chemistry and Chemical Engineering Liaocheng UniversityLiaocheng252000China

Despite the fact that low-dimensional carbons(LDCs,1D/2D)materials are very interesting due to their intriguing electrical properties,we still attempt to enrich them by high N-content in order to enjoy their *** here report a template-free synthesis of 1D/2D LDC with high N content(>40 at%)and tunable aspect ratios from molecular formamide(FA).The 1D/2D LDC is in polyaminoimidazole as conﬁrmed by pair distribution function analysis,and 1D growth mode can be altered to 2D by simply adding a 2D-guiding molecule of *** properties of the LDC can beﬁnely tuned by adjusting the solvothermal temperature and melamine *** is revealed that the optimal 2D LDC delivers superior O2-to-H_(2)O_(2) yield(687.2 mmol⋅g^(-1)⋅h^(-1))and Faradic efﬁciency(87.5%).Considering the heavy N content and high adjustability of aspect ratio,the FAderived LDCs potentially open new synthesis routes for structural carbon materials for broad electrochemical applications.

关键词： Carbon N-doping Anisotropic growth Oxygen reduction Hydrogen peroxide

来源：

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

Expression Recognition Based Constructing Strategy for Virtual Learning Community 36

Expression Recognition Based Constructing Strategy for Virtu...

引用

第36届中国控制会议

作者： huifang li Wei Dong Qingsong Han Yafei Luo Hong Huang School of Automation Beijing Institute of Technology

ISBN: (纸本)9781538629185

Virtual learning community is an important organizational form for collaborative *** the learning emotion,interaction degree,knowledge test are important characteristics of ***,the existing constructing strategy is unable to accurately determine the matching degree between the learner and the *** lower matching degree will weaken the learning performance of *** paper comprehensively considers and uses the learning characteristics to evaluate the matching degree between learners and commmunities,and presents a new dynamic constructing strategy,then give its corresponding adjusting algorithm for virtual learning *** is easy and more accurate to identify whether a certain community suits the learner,and it can help a learner to find a suitable community to further improve his learning performance and *** study and analysis shows the feasibility and practicability of our proposed constructing strategy.

关键词： Virtual learning community expression recognition constructing strategy convolutional neural network

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

Colorectal cancer-derived extracellular vesicles induce liver premetastatic immunosuppressive niche formation to promote tumor early liver metastasis

引用

Signal Transduction and Targeted Therapy 2023年第4期8卷 1357-1360页

作者： Xuyang Yang Yaguang Zhang Yang Zhang huifang li li li Yangping Wu Xiangzheng Chen Lei Qiu Junhong Han Ziqiang Wang Colorectal Cancer Center Department of General SurgeryState Key Laboratory of Biotherapy and Cancer Centerand Frontiers Science Center for Disease-related Molecular NetworkWest China HospitalSichuan UniversityChengdu 610041 Sichuan ProvinceChina State Key Laboratory of Biotherapy and Cancer Center and Frontiers Science Center for Disease-related Molecular NetworkWest China HospitalSichuan UniversityChengdu 610041 Sichuan ProvinceChina Core Facility Institute of Clinical PathologyDepartment of Respiratory and Critical Care Medicineand Department of Liver Surgery&Liver TransplantationState Key Laboratory of Biotherapy and Cancer CenterWest China HospitalSichuan University and Collaborative Innovation Center of BiotherapyChengdu 610041China

Dear Editor,To date,the effect of colorectal cancer(CRC)-derived extracellular vesicles(EVs)on liver pre-metastatic niche(PMN)remain incompletely understood.1 To investigate the role of CRC-derived EVs in the remodeling of the liver PMN,we isolated EVs from CT26 cell culture *** characteristics of EVs(the morphology,size,and markers)were identified by transmission electron microscopy(TEM),Nanoparticle Tracking Analysis(NTA),and western blotting(Supplementary Fig.S1a–e).Then,BALB/c mice with an intact liver immune status were pretreated with CRCderived EVs and phosphate-buffered saline(PBS)for one month,and a liver metastasis model was established via spleen injection of tumor cells to determine whether EVs influence liver metastasis(Fig.1a).Two hours after the operation,in vivo imaging indicated that the animal model was successfully established,and the tumor fluorescence intensity in the liver was consistent between the two groups(Supplementary Fig.S2a,b).Amazingly,the liver tumor fluorescence intensity in the EVs group was significantly stronger than that in the PBS group after 24 h(Fig.1b;Supplementary Fig.S2c,d).The number of liver tumor nodules in the EVs group was also significantly higher than that in the PBS group on day 4(Fig.1c;Supplementary Fig.S2e,f).

关键词： metastasis metastatic cancer

来源：

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

Simultaneously Constructing Asymmetrically Coordinated Cobalt Single Atoms and Cobalt Nanoclusters via a Fresh Potassium Hydroxide Clipping Strategy toward Efficient Alkaline Oxygen Reduction Reaction

引用

Energy Material Advances 2023年第1期4卷 363-376页

作者： Peng Wang Ruimin Zhang Ke Wang Yunjie liu lisheng Zhang Xiaojun Wang huifang li Yan He Zhiming liu College of Electromechanical Engineering Shandong Engineering Laboratory for Preparation and Application of High-Performance Carbon-MaterialsQingdao University of Science and TechnologyQingdao 266061PR China Qingdao Industrial Energy Storage Research Institute Qingdao Institute of Bioenergy and Bioprocess TechnologyChinese Academy of SciencesQingdao 266101PR China

Single-atom catalysts based on metal-N-C constituents facilitate oxygen reduction reaction kinetics due to super-high atomic utilization ***,conventional isolated atoms suffer from coordination symmetry and make less use of electron interaction between adjacent metal sites,which severely impedes its electrocatalytic *** response,we creatively issue a feasible potassium hydroxide clipping strategy through breaking up partial Co-N bonding and reconstructing Co-Co coordination,thus simultaneously implanting abundant Co atomic clusters and Co single atoms(SAs)on the surface of covalent organic framework(COF)-derived N-doped carbon nanospheres,which are intertwined by surrounding carbon nanotube(CNT)*** elaborately designed Co_(AC-SAs)/N-C@CNT catalyst combines the benefits of the asymmetrically coordinated Co-N_(2) configuration and Co-Co electronic interaction,which exert great influence on local atomic microenvironment of metal sites and,thus,efficiently modulate the electronic ***,the optimized d-band center of Co centers contributes to weakening oxygen intermediate adsorption and to reducing the rate-determining step energy ***,because of the unique surface chelation mechanism between COF matrix and Co cations,the as-optimized Co centers are homogenously stabilized on the carbon outermost shell,further maximizing active sites *** expected,the CoAC-SAs/N-C@CNT catalyst harvests superior oxygen reduction reaction catalytic kinetics in alkaline medium,surpassing the commercial Pt/C catalyst.

关键词： structure kinetics centers

来源：

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

Engineering oxygen vacancies and localized amorphous regions in CuO-ZnO separately boost catalytic reactivity and selectivity

引用

Nano Research 2023年第2期16卷 2126-2132页

作者： Yongjun Ji Xiaoli Chen Shaomian liu liwen Xing Xingyu Jiang Bin Zhang huifang li Wenxing Chen Ziyi Zhong ligen Wang Guangwen Xu Fabing Su School of light Industry Beijing Technology and Business UniversityBeijing 100048China Institute of Process Engineering Chinese Academy of SciencesBeijing 100190China College of Chemistry and Materials Engineering Beijing Technology and Business UniversityBeijing 100048China Institute of Industrial Chemistry and Energy Technology Shenyang University of Chemical TechnologyShenyang 110142China Analytical and Testing Center Chongqing UniversityChongqing 401331China Energy&Catalysis Center School of Materials Science and EngineeringBeijing Institute of TechnologyBeijing 100081China Department of Chemical Engineering Guangdong Technion-Israel Institute of Technology(GTIIT)Shantou 515063China Guangdong Provincial Key Laboratory of Materials and Technologies for Energy Conversion(MATEC) GTIITGuangdong 515063China Gripm Advanced Materials Co. Ltd.Beijing 101407China

Generating different types of defects in heterogeneous catalysts for synergetic promotion of the reactivity and selectivity in catalytic reactions is highly challenging due to the lack of effective theoretical ***,we demonstrate a facile strategy to introduce two types of defects into the CuO-ZnO model catalyst,namely oxygen vacancies(OVs)induced by H2 partial reduction and localized amorphous regions(LARs)generated via the ball milling *** industrially important Rochow–Müller reaction as a representative,we found OVs predominantly improved the target product selectivity of dimethyldichlorosilane,while LARs significantly increased the conversion of reactant *** CuO-ZnO catalyst with optimized OVs and LARs contents achieved the best catalytic *** calculation further revealed that LARs promote the generation of the Cu3Si active phase,and OVs impact the electronic structure of the Cu3Si active *** work provides a new understanding of the roles of different catalyst defects and a feasible way of engineering the catalyst structure for better catalytic performances.

关键词： oxygen vacancy localized amorphous region CuO-ZnO catalyst reactivity selectivity

来源：

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

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：