检索结果-南通市图书馆

Flexible and multifunctional triboelectric nanogenerator based on liquid metal/polyvinyl alcohol hydrogel for energy harvesting and self-powered wearable human-machine interaction

在线全文

学校读者我要写书评

暂无评论

Rare Metals 2024年第3期43卷 1186-1196页

作者： Hou-Wang Zhou Cong Zhao Ze-Yu Zhao jun-chen jiang Hui-Le Jin Shun Wang Shuang Pan Min-Yi Xu Yi-Huang chen Hai-Ming Jin Department of Orthopaedics The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical UniversityWenzhou325027China College of Chemistry and Materials Engineering Wenzhou UniversityWenzhou325035China Dalian Key Laboratory of Marine Micro/Nano Energy and Self-Powered Systems Marine Engineering CollegeDalian Maritime UniversityDalian116026China

Hydrogel-based triboelectric nanoge nerator(TENG)has a promising applied prospect in wearable electronic ***,its low performance,poor stability,insufficient recyclability and inferior self-healing seriously hinder its ***,we report a robust route to a liquid metal(LM)/polyvinyl alcohol(PVA)hydrogel-based TENG(LP-TENG).Owing to the intrinsically liquid feature of conductive LM within the flexible PVA hydrogel,the as-prepared LP-TENG exhibited comprehensiye advantages of adaptability,biocompatibility,outstanding electrical performance,superior stability,recyclability and diverse applications,which were unattainable by traditional ***,the LP-TENG delivered appealing open circuit voltage of 250 V,short circuit current of 4μA and transferred charge of 120 nC with high stability,outperforming most advanced TENG *** LP-TENG was successfully employed for versatile applications with multifunctionality,including human motion detection,handwriting recognition,energy collection,message transmission and human-machine *** work presents significant prospects for crafting advanced materials and devices in the fields of wearable electronics,flexible skin and smart robots.

关键词： Liquid metal Hydrogel Wearable TENG Multifunctionality Human-machine interaction

Flat Frequency Comb Generation Based on Efficiently Multiple Four-Wave Mixing Without Polarization Control

在线全文

学校读者我要写书评

暂无评论

Photonic Sensors 2016年第1期6卷 85-89页

作者： Qimeng DONG Bao SUN Fushen chen jun jiang Key Laboratory of Optical Fiber Sensing & Communications (Ministry of Education) University of Electronic Science and Technology of China Chengdu 611731 China

This paper presents a new technique for flat optical frequency comb （OFC） generation, which is based on the nonlinear process of multiple four-wave mixing （FWM） effects. The nonlinear effects are significantly enhanced by using the proposed optical feedback scheme consisting of a single mode fiber （SMF）, two highly nonlinear fibers （HNLFs） with different zero dispersion wavelengths （ZDWs） and polarization beam splitters （PBSs）. Simulation results illustrate its efficiency and applicability of expanding a comb to 128 coherent lines spaced by only 20GHz within 6-dB power deviation.

关键词： Nonlinear fiber optics multiple four-wave mixing optical feedback phase modulation self-phasemodulation

利用光学微腔效应调节顶发射蓝光器件的色纯度

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

发光学报 2012年第5期33卷 545-548页

作者：陈俊江长春理工大学吉林长春130021 中国科学院长春光学精密机械与物理研究所吉林长春130033

有机电致发光器件的发光颜色与色纯度在很大程度上受材料本身的限制,而通过光学微腔效应可以从器件结构上的改变来调节色纯度。本文介绍了一种通过调节有机层厚度,从而获得高纯度单色发光器件的方法。利用这种方法制作了有机顶发射蓝光... 详细信息

有机电致发光器件的发光颜色与色纯度在很大程度上受材料本身的限制,而通过光学微腔效应可以从器件结构上的改变来调节色纯度。本文介绍了一种通过调节有机层厚度,从而获得高纯度单色发光器件的方法。利用这种方法制作了有机顶发射蓝光器件,器件结构为Ag/m-MTDATA/NPB/DPVBi/Alq3/LiF/Al/Ag)。通过调节有机层的厚度,获得了高色纯度的发光器件,正向出射的蓝光色坐标达到了(0.14,0.07)。

关键词：光学微腔蓝光顶发射色纯度

Response of Stream Pollution Characteristics to Catchment Land Cover in Cao-E River Basin, China

在线全文

学校读者我要写书评

暂无评论

Pedosphere 2011年第1期21卷 115-123页

作者： SHEN Ye-Na LUE jun chen Ding-jiang SHI Yi-Ming Department of Natural Resources College of Environmental Science and Natural Resources Zhejiang University Hangzhou 310029 (China) China Ministry of Education Key Lab of Environmental Remediation and Ecological Health Zhejiang University Hangzhou 310029 (China) Zhejiang Provincial Key Laboratory of Subtropical Soil and Plant Nutrition Zhejiang University Hangzhou 310029 (China)

This study addressed the relationship of river water pollution characteristics to land covers and human activities in the catchments in a complete river system named Cao-E River in eastern *** on the hydrogeochemical data collected monthly over a period of 3 years,cluster analysis(CA) and principal component analysis(PCA) were adopted to categorize the river reaches and reveal their pollution *** to the differences of water quality in the river reaches and land use patterns and average population densities in their catchments,the whole river system could be categorized into three groups of river reaches,i.e.,non-point sources pollution reaches(NPSPR),urban reaches(UR) and mixed sources pollution reaches(MSPR).In UR and MSPR,the water quality was mainly impacted by nutrient and organic pollution,while in NPSPR nutrient pollution was the main *** nitrate was the main nitrogen form in NPSPR and particulate phosphorus was the main phosphorus form in *** were no apparent trends for the variations of pollutant concentrations with increasing river flows in NPSPR and MSPR,while in UR the pollutant concentrations decreased with increasing river *** dry season was the critical period for water pollution control in ***,catchment land covers and human activities had significant impact on river reach water pollution type,nutrient forms and water quality responses to hydrological conditions,which might be crucial for developing strategies to combat water pollution in watershed scale.

关键词： cluster analysis hydrological conditions pollution factors principle component analysis water quality

Twin dilivery of a 46,XY gonadal dysgenetic woman following vitrified oocytes donation

在线全文

学校读者我要写书评

暂无评论

Chinese Medical Journal 2011年第7期124卷 1109-1110页

作者： GAO Shan-shan SHENG Yan LI Yuan LI Mei YANG Hui-jun chen Zi-jiang Shandong Provincial Key Laboratory of Reproductive Medicine Center for Reproductive Medicine Provincial Hospital Affiliated to Shandong University Jinan Shandong 250012 China

A 46,XY gonadal dysgenetic woman gave birth to two healthy girls following vitrified oocytes donation. The loss of SRY gene was considered as the cause of this patient. Although similar cases have been reported about pregnancies of 46,XY pure gonadal dysgenetic women, successful delivery from vitrified oocytes has been hardly reported yet. Oocytes vitrification technique provides a beneficial way by saving superfluous oocytes from the pregnancy patients to these women who need.

关键词： gonadal dysgenesis oocyte vitrification," SRY deletion

miR-33s在NF-κB抑制ABCA1表达及胆固醇流出中的作用

在线全文

学校读者我要写书评

暂无评论

生物化学与生物物理进展 2018年第5期45卷 553-559页

作者：陈筠江婷李孟奇赵国军桂林医学院组胚教研室桂林541004 桂林医学院教务处桂林541004

为探讨mi R-33s在核因子κB(NF-κB)抑制三磷酸腺苷结合盒转运体A1(ABCA1)表达及胆固醇流出中的作用,THP-1巨噬细胞源性泡沫细胞经不同浓度脂多糖(LPS)处理,活化NF-κB,或以PDTC(NF-κB抑制剂)预处理细胞后再加入LPS,实时荧光定量PCR检... 详细信息

为探讨mi R-33s在核因子κB(NF-κB)抑制三磷酸腺苷结合盒转运体A1(ABCA1)表达及胆固醇流出中的作用,THP-1巨噬细胞源性泡沫细胞经不同浓度脂多糖(LPS)处理,活化NF-κB,或以PDTC(NF-κB抑制剂)预处理细胞后再加入LPS,实时荧光定量PCR检测细胞mi R-33s及其宿主基因胆固醇调节元件结合蛋白(SREBPs)的表达,蛋白质印迹法检测SREBPs的蛋白质表达,染色体免疫共沉淀检测NF-κB p65与SREBPs启动子区结合情况;LPS处理基础上,转染mi R-33s抑制物或mi R-33s模拟物,RT-PCR检测ABCA1 m RNA表达水平,蛋白质印迹法检测ABCA1蛋白水平,液体闪烁计数仪检测细胞内的胆固醇流出.结果显示,NF-κB活化促进mi R-33s及SREBPs的表达,使用PDTC抑制NF-κB,细胞内mi R-33s和SREBPs的表达下降;NF-κB p65可与SREBPs启动子区直接结合;转染mi R-33s抑制剂后,NF-κB活化对ABCA1的抑制作用减弱,胆固醇流出增强;相反,转染mi R-33s抑制物,NF-κB活化对ABCA1的抑制作用增强,胆固醇流出减弱.结果提示,NF-κB活化可促进mi R-33s表达,抑制ABCA1及胆固醇流出.

关键词： miR-33s 核因子κB 三磷酸腺苷结合盒转运体A1 胆固醇流出

在线全文

学校读者我要写书评

暂无评论

广义进化与建筑思维

新建筑 2003年第6期 19-21页

作者：陈军蒋涛华南理工大学建筑学院广州510640

首先分辨了进步与进化的概念,指出进化并不天然地等于进步观念,借此对建筑学引入进化概念的困难作了解释。同时还引入广义进化的有关观点,对建筑学中的思维认知问题,特别是建筑创作思维问题作了初步探讨,对有关建筑现象作了分析。

关键词：广义进化建筑思维建筑学建筑创作

Toward understanding the role of genomic repeat elements in neurodegenerative diseases

在线全文

学校读者我要写书评

暂无评论

Neural Regeneration Research 2025年第3期20卷 646-659页

作者： Zhengyu An Aidi jiang Jingqi chen Institute of Science and Technology for Brain-Inspired Intelligence Fudan UniversityShanghaiChina MOE Frontiers Center for Brain Science Fudan UniversityShanghaiChina MOE Key Laboratory of Computational Neuroscience and Brain-Inspired Intelligence Fudan UniversityShanghaiChina Zhangjiang Fudan International Innovation Center ShanghaiChina

Neurodegenerative diseases cause great medical and economic burdens for both patients and society;however, the complex molecular mechanisms thereof are not yet well understood. With the development of high-coverage sequencing technology, researchers have started to notice that genomic repeat regions, previously neglected in search of disease culprits, are active contributors to multiple neurodegenerative diseases. In this review, we describe the association between repeat element variants and multiple degenerative diseases through genome-wide association studies and targeted sequencing. We discuss the identification of disease-relevant repeat element variants, further powered by the advancement of long-read sequencing technologies and their related tools, and summarize recent findings in the molecular mechanisms of repeat element variants in brain degeneration, such as those causing transcriptional silencing or RNA-mediated gain of toxic function. Furthermore, we describe how in silico predictions using innovative computational models, such as deep learning language models, could enhance and accelerate our understanding of the functional impact of repeat element variants. Finally, we discuss future directions to advance current findings for a better understanding of neurodegenerative diseases and the clinical applications of genomic repeat elements.

关键词： Alzheimer's disease ataxia deep learning long-read sequencing neurodegeneration neurodegenerative diseases Parkinson's disease repeat element structural variant

Microstructural evolution during the progressive transformation-induced plasticity effect in a Fe-0.1C-5Mnmedium manganese steel

在线全文

学校读者我要写书评

暂无评论

International Journal of Minerals,Metallurgy and Materials 2025年第2期32卷 369-379页

作者： Mei Zhang Wenhao Li Yangfei chen Yang jiang Xiaofei Guo Han Dong School of Materials Science and Engineering Shanghai UniversityShanghai 200444China State Key Laboratory of Advanced Special Steel Shanghai UniversityShanghai 200444China

The microstructural evolution of a cold-rolled and intercritical annealed medium-Mn steel(Fe-0.10C-5Mn)was investigated during uniaxial tensile ***-situ observations under scanning electron microscopy,transmission electron microscopy,and X-ray diffraction analysis were conducted to characterize the progressive transformation-induced plasticity process and associated fracture initiation *** findings were discussed with the local strain measurements via digital image *** results indicated that Lüders band formation in the steel was limited to 1.5%strain,which was mainly due to the early-stage martensitic phase transformation of a very small amount of the less stable large-sized retained austenite(RA),which led to localized stress concentrations and strain hardening and further retardation of *** small-sized RA exhibited high stability and progressively transformed into martensite and contributed to a stably extended Portevin-Le Chatelier *** volume fraction of RA gradually decreased from 26.8%to 8.2%prior to *** the late deformation stage,fracture initiation primarily occurred at the austenite/martensite and ferrite/martensite interfaces and the ferrite phase.

关键词： medium-Mn steel retained austenite progressive transformation-induced plasticity effect local strain fracture initiation