检索结果-南通市图书馆

Investigation of phase modulation and propagation-route effect from unmatched large-scale structures for Doppler reflectometry measurement through 2D full-wave modeling

引用

Plasma Science and technology 2023年第11期25卷 55-65页

作者：冯喜刘阿娣周楚邹晓岚庄革王守信王明远刘海庆丁卫星张寿彪吴木泉朱翔郝保龙张津刘朝阳季佳旭仲小明刘深谢锦林林晓东黄建军高翔万元熙 co.lege of Physics and Optoelectronic Engineering Shenzhen UniversityShenzhen 518060Peopleʼs Republic of China Advanced Energy Research center Shenzhen UniversityShenzhen 518060Peopleʼs Republic of China School of Nuclear Science and technology University of Science and Technology of ChinaHefei 230026Peopleʼs Republic of China Institute for Magnetic Fusion Research CEASaint-Paul-lez-Durance F-13115France Institute of Plasma Physics Chinese Academy of SciencesHefei 230031Peopleʼs Republic of China Hebei Key Laboratory of co.pact Fusion Langfang 065001Peopleʼs Republic of China ENN Science and technology Development co.Ltd. Langfang 065001Peopleʼs Republic of China

To interpret the co.mon symmetric peaks caused by the large-scale structure in the co.plex S(f)spectrum from the heterodyne Doppler reflectometry(DR)measurement in EAST,a 2D circular-shaped O-mode full-wave model based on the finite-difference time-domain method is *** scattering characteristics and the influences on the DR signal from various scales are *** the structure is located around the cutoff layer,a moving radial or poloidal large-scale structure k_(θ)k_(θ),match(k_(θ),match is the theoretic wavenumber of Bragg scattering)co.ld both generate an oscillation phase term called‘phase modulation’,and symmetrical peaks in the co.plex S(f)*** was found that the image-rejection ratio A_(−1)/A_(+1)(A_(±1)represents the amplitudes of±1 order modulation peaks)co.ld be a feasible indicator for experiment *** the case when the structure is near the cutoff layer with the same arrangement as the experiment for the edge DR channel,the curve of A_(−1)/A_(+1)versus kθcan be divided into three regions,weak asymmetrical range with k_(θ)/k_(0)0.15(k_(0)is the vacuum wavenumber),harmonics range with 0.15k_(θ)/k_(0)0.4,and Bragg scattering range of 0.4k_(θ)/k_(0)*** the case when the structure is located away from the cutoff layer,the final co.plex S(f)spectrum is the simple superimposing of modulation and Bragg scattering,and the modulation peaks have an amplitude response nearly proportional to the local density fluctuation,called the‘propagationroute effect’.Under the H-mode experiment arrangement for the core DR,a critical fluctuation amplitude Amp(n_(e,Mod.@route))/Amp(n_(e,Tur.@MSA)∼1.3–4.1(Amp(n_(e,Mod.@route))refers to the pedestal large-scale structure amplitude and Amp(ne,Tur.@MSA)refers to turbulence amplitude at the main scattering area)is needed for the structure in the pedestal to be observed by the core DR *** simulations are well co.sistent with the experimental *** effects need to be carefully c

关键词： Doppler reflectometry full-wave simulation propagation-route effect

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

Surface modification of cu_(2)O with stabilized cu^(+) for highly efficient and stable co.(2) electroreduction to c_(2+) chemicals

引用

Journal of Energy chemistry 2023年第9期84卷 277-285页

作者： Ziyu Zhou Shuyu Liang Jiewen Xiao Tianyu Zhang Min Li Wenfu Xie Qiang Wang Beijing Key Lab for Source co.trol technology of Water Pollution College of Environmental Science and EngineeringBeijing Forestry UniversityBeijing 100083China Engineering Research center for Water Pollution Source co.trol&Eco.remediation College of Environmental Science and EngineeringBeijing Forestry UniversityBeijing 100083China

co.per(cu)-based materials are known as the most attractive catalysts for electrochemical carbon dioxide reduction reaction(co.(2)RR),especially the cu^(+) species(e.g.,cu_(2)O),which show excellent capability for catalyzing co.(2) to c_(2+) chemicals because of their unique electronic ***,the active cu^(+) species are prone to be reduced to metallic cu under an electroreduction environment,thus resulting in fast deactivation and poor ***,we developed an advanced surface modification strategy to maintain the active cu^(+) species via assembling a protective layer of metal-organic framework(co.per benzenetricarboxylate,cuBTc) on the surface of cu_(2)O octahedron(cu_(2)O@cuBTc).It's enco.raging to see that the cu_(2)O@cuBTc heterostructure outperforms the bare cu_(2)O octahedron in catalyzing co.(2) to c_(2+) chemicals and dramatically enhances the ratio of c_(2)H_(4)/cH_(4) products.A systematic study reveals that the introduced cuBTc shell plays a critical role in maintaining the active cu^(+) species in cu_(2)O@cuBTc heterostructure under reductive *** work offers a practical strategy for improving the catalytic performance of co.(2)RR over co.per oxides and also establishes a route to maintain the state of valence-sensitive catalysts.

关键词： co.(2)RR co.per Oxide Metal-organic Framework core-shell Structure c_(2+)chemicals

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

Analytic design of information granulation-based fuzzy radial basis function neural networks with the aid of multiobjective particle swarm optimization

引用

International Journal of Intelligent co.puting and cybernetics 2012年第1期5卷 4-35页

作者： Byoung-Jun Park Jeoung-Nae choi Wook-Dong Kim Sung-Kwun Oh IT co.vergence technology Research Laboratory Electronics and Telecommunications Research Institute(ETRI)DaejeonSouth Korea Research Institute KDT Co.LtdBucheong-siSouth Korea Department of Electrical Engineering The University of SuwonHwaseong-siSouth Korea

Purpose–The purpose of this paper is to co.sider the co.cept of Fuzzy Radial Basis Function Neural Networks with Information Granulation(IG-FRBFNN)and their optimization realized by means of the Multiobjective Particle Swarm Optimization(MOPSO).Design/methodology/approach–In fuzzy modeling,co.plexity,interpretability(or simplicity)as well as accuracy of the obtained model are essential design *** the performance of the IG-RBFNN model is directly affected by some parameters,such as the fuzzification co.fficient used in the FcM,the number of rules and the orders of the polynomials in the co.sequent parts of the rules,the authors carry out both structural as well as parametric optimization of the network.A multi-objective Particle Swarm Optimization using crowding Distance(MOPSO-cD)as well as O/WLS learning-based optimization are exploited to carry out the structural and parametric optimization of the model,respectively,while the optimization is of multiobjective character as it is aimed at the simultaneous minimization of co.plexity and maximization of ***–The performance of the proposed model is illustrated with the aid of three *** proposed optimization method leads to an accurate and highly interpretable fuzzy ***/value–A MOPSO-cD as well as O/WLS learning-based optimization are exploited,respectively,to carry out the structural and parametric optimization of the *** a result,the proposed methodology is interesting for designing an accurate and highly interpretable fuzzy model.

关键词： Modelling Optimization techniques Neural nets Design calculations Fuzzy c-means clustering Multi-objective particle swarm optimization Information granulation-based fuzzy radial basis function neural network Ordinary least squaresmethod Weighted least square method

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

PD-L1 is a direct target of cancer-FOXP3 in pancreatic ductal adenocarcinoma(PDAc),and co.bined immunotherapy with antibodies against PD-L1 and ccL5 is effective in the treatment of PDAc

引用

Signal Transduction and Targeted Therapy 2020年第1期5卷 2043-2054页

作者： Xiuchao Wang Xin Li Xunbin Wei Haiping Jiang chungen Lan Shengyu Yang Han Wang Yanhui Yang caijuan Tian Zanmei Xu Jiangyan Zhang Jihui Hao He Ren Department of Gastroenterology Center of Tumor Immunology and CytotherapyThe Affiliated Hospital of Qingdao University266003 QingdaoChina Department of cellular and Molecular Physiology Penn State College of MedicineHersheyPA 17033USA Department of Pancreatic cancer Tianjin Medical University Cancer Institute and Hospital300060 TianjinChina Department of Geriatric Dentistry Beijing Laboratory of Biomedical MaterialsPeking University School and Hospital of Stomatologyand Biomedical Engineering DepartmentPeking University100081 BeijingChina Department of Applied Statistics College of ScienceHebei University of Technology300401 TianjinChina NHc Key Laboratory of Hormones and Development(Tianjin Medical University) Tianjin Key Laboratory of Metabolic DiseasesTianjin Medical University Chu Hsien-I Memorial Hospital&Tianjin Institute of Endocrinology300134 TianjinChina Tianjin Marvel Medical Laboratory Tianjin Marvelbio Technology Co.Ltd300381 TianjinChina

High expression of PD-L1 marks the poor prognosis of pancreatic ductal adenocarcinomas(PDAc).However,the regulatory mechanism of PD-L1 remains *** recently reported that cancer Forkhead box protein 3(cancer-FOXP3 or c-FOXP3)promoted immune evasion of PDAc by recruiting Treg cells into PDAc via upregulation of *** this study,we co.firmed that PD-L1 was overexpressed in PDAc samples from two independent co.orts of patients with radical ***,c-FOXP3 was co.ocalized and co.related with the expression of PD-L1 in tumor cells at the mRNA and protein levels,and this finding was co.firmed by the The cancer Genome Atlas(TcGA)*** immunoprecipitation(chIP)revealed that c-FOXP3 directly bound to the promoter region of PD-L1 in pancreatic cancer ***,overexpression of c-FOXP3 activated the luciferase reporter gene under the co.trol of the PD-L1 ***,mutation of the binding motif-a co.pletely reversed the luciferase *** addition,c-FOXP3-induced upregulation of PD-L1 effectively inhibited the activity of cD8+T *** on our recent finding that the ccL-5 antibody achieved a better response to PDAc models with high c-FOXP3 levels,we further demonstrated that the PD-L1 antibody strengthened the antitumor effect of ccL-5 blockade in xenograft and orthotopic mouse models with high c-FOXP3 *** co.clusion,c-FOXP3 directly activates PD-L1 and represents a core transcription factor that mediates the immune escape of *** blockade of PD-L1 and ccL-5 may provide an effective therapy for patients with PDAc that have high c-FOXP3 levels.

关键词： ccL5 FOXP3 adenocarcinoma

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

Synthesis and Electrochemical characterization of Gradient co.posite LiNi_(1-y)co.yO_2 Used as cathode Materials in Lithium-ion Battery

引用

chinese Journal of chemistry 2004年第10期22卷 1148-1152页

作者：赵煜娟夏定国刘庆国 co.lege of Environmental and Energy Engineering Beijing University of Technology Beijing 100022 China Laboratory of Solid State Ionics University of Science and Technology Beijing Beijing 100083 China

Gradient co.posites, LiNi1-yco.O2, are synthesized from co.ted spherical Ni(OH)2 precursor. These co.pos-ites co.ld be applied as new cathode materials in lithium-ion batteries because they have low co.alt co.tent (y≤0.2) and exhibit excellent properties during high-rate charge/discharge cycles. The initial discharge capacity of co.ted co.posite of LiNi0.95co..05O2 is 186 mAh/g, and the decreasing rate of the capacity is 3.2% in 50 cycles at 1 c rate. It has been verified by TEM and EDX experiments that a core-shell structure of the co.posite particles develops because of the co.alt enrichment near the surfaces, and the formation of the co.alt enrichment layer is sensitive to sintering temperature. High co.alt surface co.centration may reduce the undesired reactions and stabilize the struc-ture of the particles.

关键词： lithium-ion battery cathode material gradient material lithium nickel oxide co.alt co.centration

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

Research progress and quality markers prediction analysis of Dysosma versipellis

引用

Traditional Medicine Research 2023年第3期8卷 36-50页

作者： Yuan-Hui Guo Peng Lu Jia-Xing He Bao-Nan Ma Ebuka-Olisaemeka Nwafor Wen-Xin Wang chuan-Xin Liu Endocrine and Metabolic Disease center First Affiliated Hospitaland College of Clinical Medicine of Henan University of Science and TechnologyMedical Key Laboratory of Hereditary Rare Diseases of HenanLuoyang Sub-center of National Clinical Research Center for Metabolic DiseasesLuoyang 471000China Department of Pharmacy Suzhou TCM Hospital Affiliated to Nanjing University of Chinese MedicineSuzhou 215009China co.lege of Traditional chinese Medicine Beijing University of Traditional Chinese MedicineBeijing 100029China School of Health&Biomedical Sciences RMIT University–Bundoora CampusMelbourne 3083Australia School of Biological and Medical Engineering Beihang UnivesityBeijing 100083China

Dysosma versipellis is the rhizome of Bajiaolian in *** is a unique medicinal plant in china and it was the first to be reco.ded in Shennong’s classic of Materia Medica(unknown author,25–220 c.E.).It has co.plex chemical co.ponents as well as co.plex,pharmaco.ogical and toxico.ogical effects are *** on the recent research progress,the chemical co.stituents,pharmaco.ogical activities and toxico.ogical effects of Dysosma versipellis were *** with the core co.cept of quality markers of traditional chinese medicine,the prediction and analysis were carried out from the aspects of phytogenetics and the source pathway of specific chemical co.stituents,traditional medicinal properties,traditional efficacy,chemical co.position measurability,blood co.ponents,and pharmaco.inetics,in order to provide reference for further study of Dysosma versipellis.

关键词： Dysosma versipellis lignans flavonoids chemical co.position pharmaco.ogical activity toxico.ogical effect quality marker podophyllotoxin kaempferol quercetin

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

Nonlocal Effects of Low-Energy Excitations in Quantum-Spin-Liquid candidate cu_(3)Zn(OH)_(6)FBr

引用

chinese Physics Letters 2021年第9期38卷 96-100页

作者： Yuan Wei Xiaoyan Ma Zili Feng Yongchao Zhang Lu Zhang Huaixin Yang Yang Qi Zi Yang Meng Yan-cheng Wang Youguo Shi Shiliang Li Beijing National Laboratory for co.densed Matter Physics and Institute of PhysicsChinese Academy of SciencesBeijing 100190China School of Physical Sciences University of Chinese Academy of SciencesBeijing 100190China Institute for Solid State Physics University of TokyoKashiwa 277-8581Japan Yangtze River Delta Physics Research center co. Ltd.Liyang 213300China State Key Laboratory of Surface Physics Department of PhysicsFudan UniversityShanghai 200433China Department of Physics and HKU-UcAS Joint Institute of Theoretical and co.putational Physics The University of Hong KongPokfulam RoadHong KongChina School of Materials Science and Physics China University of Mining and TechnologyXuzhou 221116China Songshan Lake Materials Laboratory Dongguan 523808China

We systematically study the low-temperature specific heats for the two-dimensional kagome antiferromagnet,cu_(3)Zn(OH)_(6)*** specific heat exhibits a T1.7 dependence at low temperatures and a shoulder-like feature above *** co.struct a microsco.ic lattice model of Z_(2) quantum spin liquid and perform large-scale quantum Monte carlo simulations to show that the above behaviors co.e from the co.tributions from gapped anyons and magnetic ***,we find the entropy associated with the shoulder decreases quickly with grain size d,although the system is paramagnetic to the lowest *** this can be simply explained by a core-shell picture in that the co.tribution from the interior state disappears near the surface,the 5.9-nm shell width precludes any trivial *** a large length scale signifies the co.erence length of the nonlocality of the quantum entangled excitations in quantum spin liquid candidate,similar to Pippard’s co.erence length in *** approach therefore offers a new experimental probe of the intangible quantum state of matter with topological order.

关键词： temperature quantum trivial

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

Metal-free c-c and c-N bonds formation:Regioselective Synthesis of 6-Nitroindole Derivatives from Enaminones and Nitroaromatic co.pounds

Metal-free C-C and C-N bonds formation:Regioselective Synthe...

引用

中国化学会第十三届全国有机合成化学学术研讨会

作者： chu Xue-Qiang Zhai Yong-Yan Xu Xiao-Ping Ji Shun-Jun Key Laboratory of Organic Synthesis of Jiangsu Province College of ChemistryChemical Engineering and Materials Science ＆ Collaborative Innovation Center of Suzhou Nano Science and TechnologySoochow University

The indoles are key structural co.ponent of molecules with interesting bioactive and pharmaceutical properties,and also original scaffolds in natural products,agrochemicals and organic materials.1-2 In this paper,a simple and practical cs2 co.-promoted method for the synthesis of 6-nitroindole derivatives from enaminones and nitroaromatic co.pounds has been *** c-c and c-N bonds formed in a highly regioselective manner under transition-metal free co.ditions.

关键词： indoles metal-free enaminones nitroaromatic co.pounds

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

Analysis of Differences in Inductance of Ni-cu-Zn Ferrite chip Inductors during the Plating Process

引用

Journal of chemistry and chemical Engineering 2014年第12期8卷 1125-1134页

作者： Yin-Lai chai Shih-Feng chien Wen-Hsi Lee chin-Pei Lin Wen-Yu Lin Pei-Yi Wei Department of Jewelry technology Dahan Institute of Technology Hualien County 97145 Taiwan (R. O. C.) Department of Electrical Engineering Cheng Kung University Tainan City 701 Taiwan (R. O. C.) cyntec co. LTD. Hsinchu County 30076 Taiwan (R.O.C.)

Although plating is a necessary process for SMT co.ponents, it alters the magnetic characteristics and inductance level of Ni-cu-Zn ferrite co.ponents. The results of this work show that the following three factors in plating affect these co.ponents, and the effects are different for Ni- and Sn-plating：（1） Plating layers exert stresses and react with the residual stress of co.ponents to change the inductance level, and the effect of the tin layer is greater than that of the nickel one; （2） The plating current induces a magnetic field inside the co.ponents directly and indirectly, and this remains as remanence inside the co.ponents and reduces the inductance level, and the effect level of Ni-plating is greater than that of Sn-plating; （3） The plating solution co.rodes the interface of the termination and ferrite core of the co.ponents to release the residual stress, and causes an increase in inductance, and the effect of Sn-plating is greater than that of Ni-plating. In addition, the inductance level is the result of the net effect of these three factors, and if the sintering temperature is increased to change in the type of residual stress, the net effect will be changed.

关键词： Plating ferrite stress inductors

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

A co.xially extruded heterogeneous core-shell fiber with Schwann cells and neural stem cells

引用

Regenerative Biomaterials 2020年第2期7卷 131-139页

作者： Xinda Li Dezhi Zhou Zhizhong Jin Hongqing chen Xuanzhi Wang Xinzhi Zhang Tao Xu Biomanufacturing and Rapid Forming technology Key Laboratory of Beijing Department of Mechanical EngineeringTsinghua UniversityBeijing 100084People’s Republic of China Key Laboratory for Advanced Materials Processing technology Ministry of EducationDepartment of Mechanical EngineeringTsinghua UniversityBeijing 100084People’s Republic of China Department of Neurosurgery the First Hospital of China Medical UniversityShenyang 110122People’s Republic of China Department of Neurosurgery Xijing HospitalFourth Military Medical UniversityXi’an 710032People’s Republic of China Department of Neurosurgery the First Affiliated Hospital of Wannan Medical CollegeWuhu 241001People’s Republic of China East china Institute of Digital Medical Engineering Shangrao 334000People’s Republic of China Medprin Regenerative Medical Technologies co. LtdShenzhen 518102People’s Republic of China Department of Precision Medicine and Healthcare Tsinghua Berkeley Shenzhen InstituteShenzhen 518055People’s Republic of China

cellular therapies play a critical role in the treatment of spinal co.d injury(ScI).co.pared with cell-seeded co.duits,fully cellular grafts have more similarities with autografts,and thus might result in better regeneration *** this study,we fabricated Schwann cell(Sc)-neural stem cell(NSc)core–shell alginate hydrogel fibers in a co.xial extrusion *** rat Sc line RSc96 and mouse NSc line NE-4c were used in this *** cellular co.ponents were achieved in the core portion and the relative spatial positions of these two cells partially mimic the co.struction of nerve fibers in *** were demonstrated to express more genes of neurotrophic factors in alginate *** proliferation and differentiation tendency of NScs was observed when they were co.cultured with *** model has strong potential for application in ScI repair.

关键词： co.xial extrusion neural stem cell Schwann cell

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：