检索结果-南通市图书馆

1000 Wh L-1 lithium-ion batteries enabled by crosslink-shrunk tough carbon encapsulated silicon microparticle anodes

引用

National Science Review 2021年第9期8卷 77-87页

作者： Fanqi Chen Junwei Han Debin kong Yifei Yuan Jing Xiao Shichao Wu Dai-Ming Tang Yaqian Deng Wei Lv Jun Lu Feiyu Kang Quan-Hong Yang Nanoyang Group State Key Laboratory of Chemical Engineering School of Chemical Engineering and Technology Tianjin University Shenzhen Geim Graphene Center Tsinghua Shenzhen International Graduate School Tsinghua University CAS Key Laboratory of Nanosystem and Hierarchical Fabrication CAS Center for Excellence in Nanoscience National Center for Nanoscience and Technology Chemical Sciences and Engineering Division Argonne National Laboratory International Center for Materials Nanoarchitectonics(WPI-MANA) National Institute for Materials Science(NIMS) Joint School of National University of Singapore and Tianjin University International Campus of Tianjin University

Microparticulate silicon（Si）, normally shelled with carbons, features higher tap density and less interfacial side reactions compared to its nanosized counterpart, showing great potential to be applied as high-energy lithium-ion battery anodes. However, localized high stress generated during fabrication and particularly,under operating, could induce cracking of carbon shells and release pulverized nanoparticles, significantly deteriorating its electrochemical performance. Here we design a strong yet ductile carbon cage from an easily processing capillary shrinkage of graphene hydrogel followed by precise tailoring of inner *** a structure, analog to the stable structure of plant cells, presents ‘imperfection-tolerance' to volume variation of irregular Si microparticles, maintaining the electrode integrity over 1000 cycles with Coulombic efficiency over 99.5%. This design enables the use of a dense and thick(3 m Ah cm–2) microparticulate Si anode with an ultra-high volumetric energy density of 1048 Wh L–1 achieved at pouch full-cell level coupled with a Li Ni0.8Co0.1Mn0.1O2cathode.

关键词： lithium-ion batteries anode silicon microparticles volumetric capacity mechanical stability

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Pseudotime Ordering Single-Cell Transcriptomic ofβCells Pancreatic Islets in Health and Type 2 Diabetes

引用

Phenomics 2021年第5期1卷 199-210页

作者： Kaixuan Bao zhicheng Cui Hui Wang Hui Xiao Ting Li Xingxing kong Tiemin Liu Human Phenome Institute Fudan University825 Zhangheng RoadShanghai 201203China State Key Laboratory of Genetic Engineering School of Life Sciencesand Collaborative Innovation Center for Genetics and DevelopmentFudan UniversityShanghai 200438China Shanghai Key Laboratory of Metabolic Remodeling and Health Institute of Metabolism and Integrative BiologyFudan UniversityShanghai 200433China Department of Endocrinology and Metabolism Zhongshan HospitalFudan UniversityShanghai 200032China

βcells are defined by the ability to produce and secret *** studies have evaluated that human pancreaticβcells are heterogeneous and demonstrated the transcript alterations ofβcell subpopulation in ***-cell RNA sequence(scRNA-seq)analysis helps us to refine the cell types signatures and understand the role of theβcells during metabolic challenges and ***,we construct the pseudotime trajectory ofβcells from publicly available scRNA-seq data in health and type 2 diabetes(T2D)based on highly dispersed and highly expressed genes using *** identified three major states including 1)Normal branch,2)Obesity-like branch and 3)T2D-like branch based on biomarker genes and genes that give rise to bifurcation in the trajectory.βcell function-maintain-related genes,insulin expression-related genes,and T2D-related genes enriched in three branches,*** pseudotime spectrum might suggest thatβcells transition among different *** application of pseudotime analysis is conducted to clarify the different cell states,providing novel insights into the pathology ofβcells in T2D.

关键词： Single-cell RNA seq Islets βcell Pseudotime T2D

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

DFH Family Wins Competition in International Commercial Satellite Market

引用

Aerospace China 2015年第4期16卷 46-48页

作者： SHI Xiaodan kong Xiaoyan CAST

China launched the Lao satellite I(Laosat-I)with a LM-3B carrier rocket at 0:07Beijing time on November 21,2015 from the Xichang Satellite Launch *** Laosat-I telecommunications satellite was put into its preset orbit... 详细信息

关键词：商业卫星市场竞争差分跳频西昌卫星发射中心国际家庭北京时间运载火箭

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

Precision radiation therapy in the modern era of multidisciplinary care in oncology:What matters to our patients and beyond?

Journal of the National Cancer Center

引用

Journal of the National Cancer Center 2024年第3期4卷 260-262页

作者： Feng-Ming(Spring)kong The University of Hong kong-Shenzhen Hospital Li Ka Shing Faculty of MedicineHong KongChina

The current standard of cancer care is combined multimodality ther-apy,including surgery,radiation therapy,chemotherapy,target ther-apy,and immune *** therapy,as one of these five major cancer modalities,has a significant contribution to the cure of cancer *** to the 2006 data of the Surveillance,Epidemiology,and End Results(SEER)Program,an estimated 3.05 million cancer sur-vivors received radiation therapy,accounting for 29%of all 5-year can-cer survivors.1 The number of radiation-treated cancer survivors is pro-jected to 4.17 million by *** radiation-treated female survivors were at 58%and projected to increase to 66%in 2030.1 It was estimated that about 50%of cancer patients in developed countries such as Aus-tralia indicated for radiation therapy,2,3 while less than 10%patients in low-income countries had access to such a life-saving treatment.4,5 Interestingly,the availability of radiation therapy has direct correlation with the survival of the cancer patients 6 or the mortality to incidence ra-tio(MIR)of cancer.7 The high-income countries have lower MIRs than many low/middle income countries where over 50%and 90%of pa-tients requiring radiotherapy do not have access to this life saving treat-ment.7 While the reason of such discrepancy is multifactorial,limited knowledge on the role of radiation therapy is an important ***-vesting in radiation therapy was associated with more life-saving and economic benefit,as presented in a special issue in Lancet Oncology.8 This highlights the importance of promoting the data and evidence in radiation therapy,justifying this very first special issue of the Journal of the National Cancer Center(JNCC)to promote the research and clinical activity on the role of radiation therapy.

关键词： patients income chemotherapy

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

Ultra-high strength yet superplasticity in a hetero-grain-sized nanocrystalline Au nanowire

引用

Journal of Materials Science & Technology 2022年第6期101卷 95-106页

作者： Libo Fu Deli kong Chengpeng Yang Jiao Teng Yan Lu Yizhong Guo Guo Yang Xin Yan Pan Liu Mingwei Chen Ze Zhang Lihua Wang Xiaodong Han Beijing Key Lab of Microstructure and Properties of Advanced Materials Beijing University of TechnologyBeijing 100124China Department of Material Physics and Chemistry University of Science and Technology BeijingBeijing 100083China School of Mechanical Engineering and Automation Beihang UniversityBeijing 100191China School of Materials Science and Engineering Shanghai Jiao Tong UniversityShanghai 200240China Department of Materials Science and Engineering Johns Hopkins UniversityBaltimoreMD 21218United States School of Materials Science and Engineering Zhejiang UniversityHangzhou 310027China

Nanocrystalline metals often display a high strength up to the gigapascal level,yet they suffer from poor *** studies have shown that the development of hetero-sized grains can efficiently overcome the strength-ductility trade-off of nanocrystalline ***,whether this strategy can lead to the fabrication of nanocrystalline nanowires exhibiting both high strength and superplasticity is unclear,similar to the atomistic deformation *** this paper,we show that ultra-small nanocrystalline Au nanowires comprising grains in both the Hall–Petch and inverse Hall–Petch grain-size regions can exhibit extremely high uniform elongation(236%)and high strength(2.34 gigapascals)at room *** situ atomic-scale observations revealed that the plastic deformation underwent two *** the first stage,the super-elongation ability originated from the intergrain plasticity of small grains via mechanisms such as grain boundary migration and grain *** intergrain plasticity caused the grains in the heterogeneous-structured nanowires to grow very *** the second stage,the superelongation ability originated from intragrain plasticity accompanied by the diffusion of surface *** results show that the hetero-grain-sized nanocrystalline nanowires,comprising grains with sizes both in the strongest Hall–Petch effect region and the inverse Hall–Petch effect region,were simultaneously ultrastrong and *** displayed neither a strength-ductility trade-off nor plastic instability.

关键词： In situ Mechanical property Metallic nanowires Transmission electron microscopy Plastic deformation

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

LncRNA cancer susceptibility 20 regulates the metastasis of human gastric cancer cells via the miR-143-5p/MEMO1 molecular axis

引用

World Journal of Gastroenterology 2022年第16期28卷 1656-1670页

作者： Ke-Shu Shan Wei-Wei Li Wang Ren Shuai kong Li-Pan Peng Hong-Qing Zhuo Shu-Bo Tian Department of Gastrointestinal Surgery Shandong Provincial Hospital Affiliated to Shandong First Medical UniversityJinan 250021Shandong ProvinceChina Department of Gastrointestinal Surgery Shandong Provincial Hospital Affiliated to Shandong UniversityJinan 250021Shandong ProvinceChina Department of Critical Care Medicine The 960^(th)Hospital of the People's Liberation Army Joint Logistics Support ForceJinan 250031Shandong ProvinceChina Department of General Surgery People's Hospital of Sishui CountyJining 273200Shandong ProvinceChina

BACKGROUND Gastric cancer(GC)is considered as one of the most widespread *** evidence has shown that lncRNAs can function as important oncogenes or tumor suppressors during GC *** To investigate the effect and mechanism of lncRNA cancer susceptibility 20(CASC20)in the proliferation and metastasis of GC *** Data mining and clinical samples were used to evaluate the expression of CASC20 in GC and adjacent ***20 was down-regulated in GC cells by shortinterfering *** proliferation was evaluated by CCK-8 assay,and cell migration and invasion were detected by wound healing and Transwell *** expressions of proteins related to epithelial-mesenchymal transition were detected by western blot *** The expression of CASC20 was increased in GC tumor tissues and various GC cell *** CASC20 expression was correlated with a high risk of lymphatic metastasis and poor prognosis in GC *** vitro assays showed that silencing CASC20 reduced cell proliferation,migration,and invasion in GC *** studies revealed that CASC20 exhibits oncogenic functions by regulating MEMO1 expression through competitive endogenous binding to miR-143-5p,leading to induction of epithelial-mesenchymal *** Our findings indicate that CASC20 serves as a tumor promoter by regulating metastasis in GC via the miR-143-5p/MEMO1 ***20 may be a potential therapeutic target for GC.

关键词： Gastric cancer LncRNA Cancer susceptibility 20 miR-143-5p MEMO1 Epithelialmesenchymal transition

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

Employability Analysis and Improving Strategy of Art Majors in College

引用

International Journal of Technology Management 2014年第11期 19-21页

作者： Liyun kong Suxia YANG ( Xingtai University Xingtai054001 China

Scarce resources of Higher Education is the fundamental factor affecting arts college students＇ employability training and promotion. Human Capital acquired by Art Majors in higher education is professional knowledge and skills with the core of employability. Characterized by a high degree of operability art expertise determines the students and enhances their professional knowledge and skills for the high dependence of educational resources. These educational resources include not only the hardware facilities, teachers, but also include the school＇ s philosophy, cultural traditions, social practices of professional opportunities, social influence and other hidden educational resources, for example, as for the traditional fine arts students, in addition to enough learning creative space, schools and cultural traditions have a very profound impact on the ability for professional and career development. In case of shortage of educational resources, art students＇ the opportunity to study and practice professional knowledge and skills must be affected, but the large number of students makes many teachers tied of teaching school recessive educational resources which even cannot be effectively communicated.

关键词： art majors employability quality education

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

Sub-5 nm Porous Nanocrystals:Interfacial Site-Directed Growth on Graphene for Efficient Biocatalysis

Sub-5 nm Porous Nanocrystals:Interfacial Site-Directed Growt...

引用

中国化学会第十九届全国有机分析及生物分析学术研讨会

作者： Biao kong Collaborative Innovation Center of Chemistry for Energy Materials(iChEM) Fudan University

An interfacial site-directed,capping-agent-free growth method to directly produce ultrasmall porous(sub-5 nm),fully crystalline,marcomolecular scale nanocrystals is *** porous,sub-5 nmPrussian blue nanocrystals exhibit uniform sizes(～ 4 ± 1 nm),high surface area(～ 855 m/g),fast electron transfer(rate constant of ～ 9.73 s),and outstanding sustained catalytic activity(more than 450 days).The nanocrystal-based biointerfaces enable unprecedented sub-nanomolar level recognition for hydrogen peroxide(～ 0.5 nM limit of detection).This method also paves the way towards creating ultrasmall porous nanocrystals for efficient biocatalysis.

关键词： Sub-5 nm Prussian blue nanocrystals biointerfaces biocatalysis

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

铝合金曲面薄壁件柔性工装夹具的加工性能研究

引用

组合机床与自动化加工技术 2013年第6期 116-118页

作者：张壮志孔啸梁建光孔飞上海交通大学模具CAD国家工程研究中心上海200030 上海申模模具制造有限公司上海200012

针对开发的铝合金薄壁曲面柔性夹具系统,设计柔性工装夹具的可行性对比试验。在对曲面薄壁试样工件的铣削加工中,分别使用柔性夹具与原来的代木夹具作为支承,使用同样的铣削参数进行加工。分析两种装夹方法的装夹效率及加工工件的表面质... 详细信息

针对开发的铝合金薄壁曲面柔性夹具系统,设计柔性工装夹具的可行性对比试验。在对曲面薄壁试样工件的铣削加工中,分别使用柔性夹具与原来的代木夹具作为支承,使用同样的铣削参数进行加工。分析两种装夹方法的装夹效率及加工工件的表面质量,并利用Hyper Works的模态分析证明柔性夹具系统有良好的减振功能。

关键词：曲面薄壁件柔性工装夹具表面质量

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

中国灾害性沙尘天气日数的时空演变特征(1961-2017)

引用

干旱区资源与环境 2020年第8期34卷 116-123页

作者：孔锋清华大学公共管理学院北京100084 清华大学应急管理研究基地北京100084

基于1961-2017年中国545个气象站点记录的沙尘暴、扬沙、浮尘和总沙尘天气日数,采用多种统计方法,从气候态分布、年代距平、长期变化趋势和年际波动特征角度分析了4种强度沙尘天气日数时空变化格局。结果表明:1)1961-2017年中国沙尘暴... 详细信息

基于1961-2017年中国545个气象站点记录的沙尘暴、扬沙、浮尘和总沙尘天气日数,采用多种统计方法,从气候态分布、年代距平、长期变化趋势和年际波动特征角度分析了4种强度沙尘天气日数时空变化格局。结果表明:1)1961-2017年中国沙尘暴、扬沙、浮尘和总沙尘天气年均日数均呈现西北高、东南低的空间分异格局。其中新疆南部和西藏西北及内蒙古西部地区是不同强度沙尘天气日数的高值区。总沙尘天气日数与沙尘暴、扬沙和浮尘日数的空间相关系数分别为0.67、0.70和0.62(n=15642),通过了0.01显著性水平的检验。2)中国4种强度的沙尘天气日数的年代距平在1960、1970和1980年代以正距平为主,其中1980年代面积偏多最高,1970年代次之,1960年代最小;在1990、2000和2010年代以负距平为主,其中2010年代面积偏少最高,2000年代次之,1990年代最小。3)1961-2017年中国不同强度沙尘天气日数均呈减少趋势,尤其是西北、内蒙古和华北地区减少趋势明显。总沙尘天气日数变化趋势与沙尘暴、扬沙和浮尘日数变化趋势的空间相关系数分别为0.67、0.70和0.62(n=15642),通过了0.01显著性水平的检验。4)1961-2017年中国沙尘暴日数波动特征呈北方大、南方小、东部大、西部小的空间分异格局,扬沙、浮尘和总沙尘天气日数波动特征呈南方大、北方小的空间分异格局。

关键词：沙尘暴扬沙浮尘时空格局变化趋势波动特征

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

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：