检索结果-南通市图书馆

Bioinspired MXene-Based User-Interactive Electronic Skin for Digital and Visual Dual-Channel Sensing

Nano-Micro Letters 2022年第7期14卷 228-245页

作者： Wentao Cao Zheng wang Xiaohao Liu Zhi zhou yue Zhang Shisheng He Daxiang Cui Feng Chen Department of Orthopedic School of MedicineSpinal Pain Research InstituteShanghai Tenth People’s HospitalTongji UniversityShanghai 200072People’s Republic of China National Engineering Research Center for Nanotechnology Shanghai 200241People’s Republic of China Institute of Micro-Nano Science and Technology School of Electronic Information and Electrical EngineeringShanghai Jiao Tong UniversityShanghai 200240People’s Republic of China

User-interactive electronic skin(e-skin) that could convert mechanical stimuli into distinguishable outputs displays tremendous potential for wearable devices and health care applications. However, the existing devices have the disadvantages such as complex integration procedure and lack of the intuitive signal display function. Here, we present a bioinspired user-interactive e-skin, which is simple in structure and can synchronously achieve digital electrical response and optical visualization upon external mechanical stimulus. The e-skin comprises a conductive layer with a carbon nanotubes/cellulose nanofibers/MXene nanohybrid network featuring remarkable electromechanical behaviors, and a stretchable elastomer layer, which is composed of silicone rubber and thermochromic pigments. Furthermore, the conductive nanohybrid network with outstanding Joule heating performance can generate controllable thermal energy under voltage input and then achieve the dynamic coloration of silicone-based elastomer. Especially, such an innovative fusion strategy of digital data and visual images enables the e-skin to monitor human activities with evermore intuition and accuracy. The simple design philosophy and reliable operation of the demonstrated e-skin are expected to provide an ideal platform for next-generation flexible electronics.

关键词： MXene Electronic skin Electromechanical behavior Joule heating Visualization

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

Holographic Polymer Nanocomposites with High Refractive Index Modulation by Doping Liquid Crystal E6M

引用

Chinese Journal of Polymer Science 2024年第7期42卷 926-935,I0006页

作者： Meng-Yun wang yue Zhang Dan wang Ming Yao Yi-Xuan wang Xing-Ping zhou Hai-Yan Peng Xiao-Lin Xie Key Laboratory of Material Chemistry for Energy Conversion and Storage Ministry of EducationSchool of Chemistry and Chemical EngineeringHuazhong University of Science and TechnologyWuhan430074China State Key Laboratory of Materials Processing and Die&Mould Technology Huazhong University of Science and TechnologyWuhan430074China National Anti-counterfeit Engineering Research Center Huazhong University of Science and TechnologyWuhan430074China

Holographic optical elements(HOEs)based on polymer composites have become a research hot spot in recent years for augmented reality(AR)due to the significant improvement of optical performance,dynamic range,ease of processing and high yield ***,it remains a formidable challenge to obtain a large field of view(FOV)and brightness due to the limited refractive index ***,we report an effective method to tackle the challenge by doping an epoxy liquid crystal termed E6M,which enables a large refractive index modulation of 0.050@633 nm and low haze of 5.0%at a doping concentration of 5 wt%.This achievement may be ascribed to the improved molecular ordering of liquid crystals within the holographic polymer *** high refractive index modulation can endow transmission-type holographic polymer composites with a high diffraction efficiency of 96.2%at a small thickness of 5μm,which would promise the design of thin and lightweight AR devices.

关键词： Polymer nanocomposites Holography AR/VR Refractive index modulation Liquid crystal

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

Contribution of Winter SSTA in the Tropical Eastern Pacific to Changes of Tropical Cyclone Precipitation over Southeast China

引用

Journal of Meteorological Research 2022年第2期36卷 282-291页

作者： Xianghua WU Qihao ZHU Chao wang yue zhou Yiqi CHEN Xintong TIAN Yajie HUA School of Mathematics and Statistics Nanjing University of Information Science&TechnologyNanjing 210044 Key Laboratory of Meteorological Disaster of Ministry of Education/Joint International Research Laboratory of Climate and Environment Change/Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters and Earth System Modeling Center Nanjing University of Information Science&TechnologyNanjing 210044 Hubei Key Laboratory for Heavy Rain Monitoring and Warning Research Institute of Heavy RainChina Meteorological AdministrationWuhan 430074

Tropical cyclone precipitation(TCP)accounts for 10%-40%of the boreal summer precipitation that occurs over Southeast China(SEC),causing flood disasters and serious *** the decadal scale,TCP increases significantly in SEC while TC frequency decreases in the western North Pacific(WNP)during ***,variations in TCP and the corresponding physical mechanism are investigated in this ***,an empirical statistical method is introduced to quantify the TCP amount based on accumulated cyclone energy(ACE)and TC frequency with the TCP anomaly decomposed into three items(rainfall frequency,rainfall intensity,and nonlinear item).ACE,as the integration of TC intensity and frequency,is a more effective index than TC frequency for depicting the characteristics of TCP because the contribution of rainfall frequency represented by ACE is higher than that of TC ***,the physical mechanism affecting the WNP TC activities and TCP in SEC are *** sea surface temperature anomaly(SSTA)over the tropical eastern Pacific(TEP)in winter can trigger variations of air-sea interaction over the tropical Pacific,including low-level divergent winds,mid-tropospheric descent flows,high-level convergent winds coupled with negative anomalies of vorticity and humidity over the tropical western Pacific(TWP)in the next *** dynamic conditions provide unfavorable environments for TC activities in the WNP and constrain TCP in ***,more significantly negative SSTA events in the TEP facilitate enhanced ACE along with positive relative vorticity,relative humidity,and upwelling vertical winds anomalies over the coast of SEC after 1998,which is a reasonable explanation for the increasing TCP in SEC.

关键词： tropical cyclone precipitation accumulated cyclone energy sea surface temperature anomaly air–sea interaction

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

Evaluation of Stabilization Performances of Antioxidants in Poly(ether ether ketone)

引用

Chemical Research in Chinese Universities 2012年第5期28卷 907-911页

作者： zhou Zheng zhou Fu-gui ZHANG Shu-ling MU Jian-xin yue Xi-gui wang Gui-bin High Performance Plastics Engineering Research Center Ministry of EducationCollege of ChemistryJilin UniversityChangehun 130012P.R.China

Two types of antioxidants（a primary antioxidant and a secondary antioxidant） were used to improve the stability of poly（ether ether ketone）（PEEK）. The effects of the antioxidants on the properties of PEEK and the stabilization mechanism were investigated by some characterization methods, such as rheometer, thermogravimetric ana- lysis（TGA）, universal tester and electron spin resonance（ESR）. The results indicate that the efficiency of the phosphorous antioxidant（DS） in improving the stability of PEEK was better than that of the phenolic antioxidant（DN） in both melting stability and thermal stability, and the thermal stability of PEEK sample containing 0.07%（mass fraction） DS was the best among all the samples due to the decrease of the free radicals density, as proven by ESR measurement. Additionally, no obvious changes could be observed in mechanical properties of PEEK containing antioxidants compared to those of virgin PEEK.

关键词： Poly(ether ether ketone) Antioxidant Stability Mechanical property Radical

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

Mechanism of action of protopanaxadiol ginsenosides on hepatocellular carcinoma and network pharmacological analysis

引用

Chinese Herbal Medicines 2024年第4期16卷 548-557页

作者： yue zhou Zi wang Shen Ren Wei Li College of Chinese Medicinal Materials Jilin Agricultural UniversityChangchun 130118China College of Life Sciences Jilin Agricultural UniversityChangchun 130118China

Hepatocellular carcinoma(HCC) is one of the most prevalent malignancies globally, posing a major challenge to global health care. Protopanaxadiol ginsenosides(PDs) have been believed to significantly improve liver diseases. PDs, such as Rg_(3), have been developed as a new class of anti-cancer *** Rb_(1), Rd, Rg_(3), and Rh_(2) exhibit effective anti-inflammatory and anti-tumor *** have confirmed that PDs could be used to treat HCC. However, the mechanism of action of PDs on HCC remains unclear. In the study, we reviewed the anti-HCC effects and mechanisms of PDs including Rb_(1), Rd, Rg_(3), Rg_5, Rh_(2), Rk_(1), and Compound K(CK). Then, we searched for relevant targets of PDs and HCC from databases and enriched them for analysis. Subsequently, molecular docking was simulated to reveal molecular mechanisms. We found that PDs may treat HCC through multiple signaling pathways and related targets. PDs could inhibit the proliferation, invasion, and metastasis of HCC while promoting apoptosis and inducing differentiation. In conclusion, this review and network pharmacological analysis might offer a direction for in-depth research on related mechanisms. These insights will aid in the direction of further pharmacological studies and the development of safe and effective clinical drugs.

关键词： anti-hepatocellular carcinoma ginsenoside Rb_(1) ginsenoside Rd ginsenoside Rg_(3) ginsenoside Rg_5 ginsenoside Rh_(2) ginsenoside Rk_(1) network pharmacology protopanaxadiol ginsenosides

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

Complementary memtransistors for neuromorphic computing: How, what and why

引用

Journal of Semiconductors 2024年第6期45卷 64-80页

作者： Qi Chen yue zhou Weiwei Xiong Zirui Chen Yasai wang Xiangshui Miao Yuhui He School of Integrated Circuits Huazhong University of Science and TechnologyWuhan 430074China Department of Electrical and Computer Engineering University of CaliforniaSan DiegoUSA Dipartimento di Elettronica e Informazione and *** Politecnico di MilanoMilanoItaly Department of Applied Physics Hong Kong Polytechnic UniversityHong KongChina

Memtransistors in which the source-drain channel conductance can be nonvolatilely manipulated through the gate signals have emerged as promising components for implementing neuromorphic *** the other side,it is known that the complementary metal-oxide-semiconductor(CMOS)field effect transistors have played the fundamental role in the modern integrated circuit ***,will complementary memtransistors(CMT)also play such a role in the future neuromorphic circuits and chips?In this review,various types of materials and physical mechanisms for constructing CMT(how)are inspected with their merits and need-to-address challenges *** the unique properties(what)and poten-tial applications of CMT in different learning algorithms/scenarios of spiking neural networks(why)are reviewed,including super-vised rule,reinforcement one,dynamic vision with in-sensor computing,*** exploiting the complementary structure-related novel functions,significant reduction of hardware consuming,enhancement of energy/efficiency ratio and other advan-tages have been gained,illustrating the alluring prospect of design technology co-optimization(DTCO)of CMT towards neuro-morphic computing.

关键词： complementary memtransistor neuromorphic computing reward-modulated spike timing-dependent plasticity remote supervise method in-sensor computing

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

The synergy of modulated surface polarity and oxygen vacancy for CO_(2) to methanol over Zn(δ-)-Ti(δ+)Ovacancy

引用

Journal of Energy Chemistry 2021年第5期30卷 449-454页

作者： Junfu zhou Lin Ye Daofeng Huang Meiyin wang Yuanhang Ren Bin yue Heyong He Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials Collaborative Innovation Center of Chemistry for Energy MaterialsFudan UniversityShanghai 200438China

Bi-functional catalysts,which can be traced back to 1960s,are widely applied in energy conversion and chemical transformation[1].Generally,the enhanced performance of the bi-functional catalyst comes from the local geometry or electron density change after the second component *** changes facilitate the reaction at the structure or electron density level[2].In fact,it is a great challenge to understand and control those effects[3].

关键词： CO_(2)conversion Zn species Oxygen vacancy Synergy Formate route Synchrotron XRD

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

Ion-interferential cell cycle arrest for melanoma treatment based on magnetocaloric bimetallic-ion sustained release hydrogel

引用

Chinese Chemical Letters 2024年第11期35卷 395-401页

作者： Zheyi Li Xiaoyang Liang Zitong Qiu Zimeng Liu Siyu wang yue zhou Nan Li Tianjin Key Laboratory of Drug Delivery&High-Efficiency School of Pharmaceutical Science and TechnologyTianjin UniversityTianjin 300072China

Melanoma treatment has been revolutionized with the development of targeted therapies and immunotherapies,which shows a positive influence on the ***,the long-term efficaciousness of such therapy is restricted by side effects,limited clinical effects as well as quick resistance to *** this work,we prepared magnetocaloric carrier-free bimetallic hydrogels,named manganese-iron oxide nanocubes@polyethylene glycol-hydrogels(MFO@PEG-Gels),to realize ion-interferential cell cycle arrest for melanoma *** detail,the tumor site was exposed to alternating magnetic field(AMF)after intratumorally injected MFO@PEG-Gels,which generated hyperthermia and promoted the sol-gel phase transition for MFO sustained *** the tumor microenvironment,hydrogen peroxide triggered MFO degradation to induce Mn^(2+)and Fe^(3+)*** one hand,Mn^(2+)blocked G1/S phase through the activation of p27 *** the other hand,Fe^(3+)could arrest the G2/M phase by upregulating the polo-like kinase 4(PLK4)expression as well as inhibiting autolysosome formation to achieve the enhanced cell cycle arrest,thereby promoting the apoptosis of melanoma *** summary,this study proposed ion-interferential cell cycle arrest strategy by a multifunctional and injectable magnetic bimetallic hydrogel for melanoma treatment,which provided a secure and sustainable regimen for enhancing antitumor efficacy.

关键词： Melanoma Magnetocaloric bimetal Sustained release hydrogel Cell cycle arrest Ion-interferential

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

Evolution of electromechanical properties in Fe-doped(Pb,Sr)(Zr,Ti)O_(3) piezoceramics

引用

Journal of Advanced Ceramics 2021年第3期10卷 587-595页

作者： Chuan CHEN Yan wang Zong-yue LI Chun LIU Wen GONG Qing TAN Bing HAN Fang-zhou YAO Ke wang Joint Laboratory of Electric Power Intelligent Sensing Technology and Application Department of Sensing Technology for Electric PowerGlobal Energy Interconnection Research Institute Co.Ltd.Future Science ParkBeijing 102209China China Aerospace Science and Industry Corporation Beijing 100048China Naqu Branch of Tibet Electric Limited Company Naqu 852000China State Key Laboratory of New Ceramics and Fine Processing School of Materials Science and EngineeringTsinghua UniversityBeijing 100084China Center of Advanced Ceramic Materials and Devices Yangtze Delta Region Institute of Tsinghua UniversityZhejiang 314006China Beijing Advanced Innovation Center for Materials Genome Engineering State Key Laboratory for Advanced Metals and MaterialsUniversity of Science and Technology BeijingBeijing 100083China Department of Orthodontics&National Engineering Laboratory for Digital and Material Technology Peking University School and Hospital of StomatologyBeijing 100081China State Key Laboratory for Mechanical Behavior of Materials Xi'an Jiaotong UniversityXi'an 710049China Foshan(Southern China)Institute for New Materials Foshan 528200China

Defects in acceptor-doped perovskite piezoelectric materials have a significant impact on their electrical ***,the defect mediated evolution of piezoelectric and ferroelectric properties of Fe-doped(Pb,Sr)(Zr,Ti)O_(3)(PSZT-Fe)piezoceramics with different treatments,including quenching,aging,de-aging,and poling,was investigated *** vacancies with a cubic symmetry are preserved in the quenched PSZT-Fe ceramics,rendering them robust ferroelectric *** the aged PSZT-Fe polycrystals,defect dipole between Fe dopant and oxygen vacancy has the same orientation with spontaneous polarization Ps,which enables the reversible domain switching and hence leads to the emergence of pinched polarization hysteresis and recoverable strain *** the defect dipoles can be gradually disrupted by bipolar electric field cycling,once again endowing the aged materials with representative ferroelectric *** the poled PSZT-Fe polycrystals,the defect dipoles are reoriented to be parallel to the applied poling field,and an internal bias field aligning along the same direction emerges simultaneously,being responsible for asymmetric hysteresis loops.

关键词： lead-zirconate-titanate(PZT) piezoelectric acceptor defect engineering electromechanical properties

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

Growth of boron nitride nanotubes from magnesium-based catalysts

引用

Nano Research 2023年第8期16卷 11048-11053页

作者： Ying wang Kai Zhang Liyun Wu Xuhua He Qian He Nanyang wang Zhengyang zhou Chaowei Li yue Hu Yagang Yao National Laboratory of Solid State Microstructures College of Engineering and Applied SciencesJiangsu Key Laboratory of Artificial Functional Materialsand Collaborative Innovation Center of Advanced MicrostructuresNanjing UniversityNanjing 210093China Henan Key Laboratory of New Optoelectronic Functional Materials College of Chemistry and Chemical EngineeringAnyang Normal University436 Xian'ge RoadAnyang 455000China Key Laboratory of Carbon Materials of Zhejiang Province College of Chemistry and Materials EngineeringWenzhou UniversityWenzhou 325000China

This study reports an efficient method for growing high-quality boron nitride nanotubes(BNNTs)via chemical vapor deposition of low-melting-point precursors—magnesium diboride(MgB_(2)),magnesium nitride(Mg_(3)N_(2)),and diboron trioxide(B_(2)O)at a growth temperature of 1000–1300℃.The strong oxygen-capturing ability of Mg_(3)N_(2)inhibits the formation of high-melting-point Mg_(3)B_(2)O_(6),which helps MgB_(2)to maintain an efficient and stable catalytic capacity,thereby enhancing its growth efficiency and utilization of the boron ***,polydimethylsiloxane(PDMS)composites formed from these BNNTs demonstrated much greater thermal conductivities than pure ***,this novel strategy for preparing BNNTs is efficient,and they have great potential for application as thermal interface materials.

关键词： boron nitride nanotubes(BNNTs) low-melting-point chemical vapor deposition(CVD) thermal conductivities

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：