检索结果-南通市图书馆

Naturally Crosslinked Biocompatible Carbonaceous Liquid Metal Aqueous Ink Printing Wearable Electronics for Multi-Sensing and Energy Harvesting

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

Nano-Micro Letters 2024年第8期16卷 148-168页

作者： King yan Chung Bingang Xu Di Tan qingjun y.ng Zihua Li Hong Fu Nanotechnology Center School of Fashion and TextilesThe Hong Kong Polytechnic UniversityHong Kong 999077People’s Republic of China Department of Mathematics and Information Technology The Education University of Hong KongHong KongPeople’s Republic of China

Achieving flexible electronics with comfort and durability comparable to traditional textiles is one of the ultimate pursuits of smart *** printing is desirable for e-textile development using a simple and inexpensive ***,fabricating high-performance atop textiles with good dispersity,stability,biocompatibility,and wearability for high-resolution,large-scale manufacturing,and practical applications has remained ***,waterbased multi-walled carbon nanotubes(MWCNTs)-decorated liquid metal(LM)inks are proposed with carbonaceous gallium–indium *** the assistance of biopolymers,the sodium alginate-encapsulated LM droplets contain high carboxyl groups which non-covalently crosslink with silk sericin-mediated MWCNTs.E-textile can be prepared subsequently via printing technique and natural waterproof triboelectric coating,enabling good flexibility,hydrophilicity,breathability,wearability,biocompatibility,conductivity,stability,and excellent versatility,without any artificial *** obtained e-textile can be used in various applications with designable patterns and ***-sensing applications of recognizing complex human motions,breathing,phonation,and pressure distribution are demonstrated with repeatable and reliable ***-powered and energy-harvesting capabilities are also presented by driving electronic devices and lighting *** proof of concept,this work provides new opportunities in a scalable and sustainable way to develop novel wearable electronics and smart clothing for future commercial applications.

关键词： Biocompatible Conductive ink Biopolymer E-textile Carbonaceous liquid metal

Tunable Curie temperature and magnetocaloric effect of FeCrMoCByNi bulk metallic glass with different crystallized phases

在线全文

学校读者我要写书评

暂无评论

Journal of Rare Earths 2019年第4期37卷 404-409页

作者： yuanbin Lv qingjun Chen youlin Huang School of Materials Science and Engineering Nanchang Hangkong University

The investigation on Curie temperature and magnetocaloric effect of the FeCrMoCByNi bulk metallic glass(BMG) with different crystallized phases was carried out by XRD,TEM and PPMS. The experimental results show that the Curie temperature(T_c) of Fe_(45)Cr_(15)Mo_(14)C_(15)B_6 y_2 Ni_3 BMG with different annealing condition reaches a highest value of 95 K. The value of magnetic entropy change △S_M(T) of Sample 3 reaches a maxima of 0.48 J/(kg·K) at Tc temperature, which result from the interaction among the precipitated phases of(Fe,Cr)_(23)(C,B)_6, Fe_3 Mo_3 C and residual amorphous phase. Based on the experiment results, it can be obtained that the Curie temperature, magnetocaloric effect can reach their optimal value at low temperature, when the content of amorphous phase and precipitated phases type run up to certain value. The magnetic properties of Sample 1 with full amorphous phase and Sample 4 with full crystalline phase will both decrease.

关键词： Bulk metallic glass Crystallization Curie temperature Magnetocaloric effect Rare earths

Stable-thickness study of masonry block on the inner slope of dikes

在线全文

学校读者我要写书评

暂无评论

Journal of Oceanology and Limnology 2019年第6期37卷 1921-1928页

作者： SUN Tianting LIU qingjun WAng Dengting Nanjing Hydraulic Research Institute Nanjing 210029China Key Lab of Port Waterway and Sedimentation Engineering of MOTNanjing 210024China

Dike failure caused by overtopping is likely to result in major casualties and property *** at this fact,a series of physical model experiments were conducted on stable thickness of masonry block on the inner slope of the *** to the erosion of block embankment with different thicknesses,the relation between the stable thickness of masonry block pitching of the inner slope and the average overtopping discharge is *** equations subject to irregular waves are presented for average overtopping discharge,based upon the analysis of mean overtopping discharge and comparison of present overtopping discharge formulas at domestic and ***,a calculation equation of the stable thickness of the dry masonry block stone of inner slope subject to irregular waves is *** conclusion,the formula matches well with the experiment result,which is capable of functioning as an important reference for structure designs of the dike in China.

关键词： mean overtopping discharge block revetment inner slope stable thickness

在线全文

学校读者我要写书评

暂无评论

美国公共图书馆夜间服务实践调研及启示

河北科技图苑 2024年第3期37卷 34-39页

作者：邱芙蓉杜庆俊季玲山东省图书馆山东济南250100

文章选取美国排名前25的公共图书馆作为研究对象,对美国公共图书馆夜间服务实践展开网络调研,从服务群体、服务空间和读者活动三方面分析了美国公共图书馆的夜间服务现状及服务特点。基于研究结果阐述了对我国公共图书馆夜间服务高质量... 详细信息

文章选取美国排名前25的公共图书馆作为研究对象,对美国公共图书馆夜间服务实践展开网络调研,从服务群体、服务空间和读者活动三方面分析了美国公共图书馆的夜间服务现状及服务特点。基于研究结果阐述了对我国公共图书馆夜间服务高质量发展的启示:创新思维,积极策划服务项目;细分受众,精准把控用户需求;吸引社会力量,加强跨界融合;深挖地域特色文化,打造夜间经济文化IP。

关键词：夜间服务美国公共图书馆

维普期刊数据库博看期刊

在线全文

学校读者我要写书评

暂无评论

岛礁地形上斜坡堤前破碎波流场数值模拟研究

海洋工程 2024年第1期42卷 96-105页

作者：黄晶鑫杨氾潘军宁王登婷刘清君南京水利科学研究院河流海岸研究所江苏南京210024

基于SPH方法建立波浪数值水槽,对岛礁地形上的波浪传播变形进行了数值模拟,分析了岛礁地形上波浪破碎过程的波高和水质点波动流速分布,并采用波浪水槽物理模型试验数据进行对比验证。结果表明,该模型可以较准确地模拟岛礁地形上波浪破... 详细信息

基于SPH方法建立波浪数值水槽,对岛礁地形上的波浪传播变形进行了数值模拟,分析了岛礁地形上波浪破碎过程的波高和水质点波动流速分布,并采用波浪水槽物理模型试验数据进行对比验证。结果表明,该模型可以较准确地模拟岛礁地形上波浪破碎引起的波高和波动流场沿程变化。在此基础上模拟了礁坪上建设斜坡堤后的波动流场,分析了斜坡堤对礁坪上流场形态、沿程波高、波动流速垂向分布及近底流速的影响。结果表明:在建设斜坡堤后,礁坪上波浪破碎更加猛烈,波浪破碎点前移;沿程波高与波动流速受反射波影响明显,沿程波高变化呈现为先增大、再减小、再增大,最后在防波堤堤脚处减小,近底流速变化趋势则与之相反;在堤前半倍波长范围内反向近底流速峰值较非岛礁地形上规范公式计算值增幅较大。

关键词：岛礁地形光滑粒子流体动力学法数值模拟斜坡堤破碎波

盐酸度洛西汀肠溶胶囊在中国健康受试者体内药代动力学与安全性研究

在线全文

学校读者我要写书评

暂无评论

天津药学 2024年第2期36卷 1-4,75页

作者：梁海月杨青军王姣烟台市食品药品检验检测中心山东264000 东营市食品药品检验研究院山东257000 烟台鲁银药业有限公司山东264000

目的:开展两种盐酸度洛西汀肠溶胶囊在中国健康人体生物等效性研究。方法:在健康成年受试者中进行单中心、随机、开放、两周期、两序列、交叉、单次给药试验设计,共有72例健康受试者随机入组,用液相串联质谱测定人血浆中度洛西汀含量,用... 详细信息

目的:开展两种盐酸度洛西汀肠溶胶囊在中国健康人体生物等效性研究。方法:在健康成年受试者中进行单中心、随机、开放、两周期、两序列、交叉、单次给药试验设计,共有72例健康受试者随机入组,用液相串联质谱测定人血浆中度洛西汀含量,用Phoenix WinNonlin 8.2软件评价药代动力学参数,并对测试制剂与参比制剂进行生物等效性评价。结果:两组受试者服用测试制剂和参比制剂后,测试制剂和参比制剂空腹组度洛西汀动力学参数C_(max)分别为(26.2±8.04)和(26.9±7.30)ng/ml;AUC_(0-t)分别为(444.07±148.81)和(442.00±156.99)ng·h/ml;AUC_(0-∞)分别为(458.87±156.82)和(460.42±174.83)ng·h/ml,测试制剂和参比制剂餐后组度洛西汀动力学参数C_(max)分别为(24.3±8.51)和(24.9±10.2)ng/ml;AUC_(0-t)分别为(400.59±206.52)和(411.42±229.82)ng·h/ml;AUC_(0-∞)分别为(418.54±225.41)和(429.91±254.89)ng·h/ml。两种制剂C_(max)、AUC_(0-t)和AUC_(0-∞)几何均值比及其90%置信区间均在80.00%~125.00%。结论:两种盐酸度洛西汀肠溶胶囊在中国健康受试者中具有生物等效性,安全性良好。

关键词：度洛西汀生物等效性高效液相色谱-质谱

Wave uplift force on horizontal panels: a laboratory study

在线全文

学校读者我要写书评

暂无评论

Journal of Oceanology and Limnology 2019年第6期37卷 1899-1911页

作者： LIU qingjun SUN Tianting WAng Dengting WEI Zhangping Nanjing Hydraulic Research Institute Nanjing 210029China College of Harbour Coastal and Off shore Engineering Hohai UniversityNanjing 210098China Key Laboratory of Port Waterway&Sedimentation Engineering of MOTNanjing 210029China Department of Civil Engineering Johns Hopkins UniversityBaltimoreMD 21218USA

Accurate estimation of wave uplift force is essential to the designs of reliable coastal and marine *** presents a series of laboratory work here on the impact of regular waves on horizontal panels,from which an empirical formula to estimate accurately the wave uplift force on panels is *** laboratory measurements show that the wave uplift force depends mainly on the incident wave height,the wave period,the wave length,the panel width,and the clearance between the subsurface of the panel and the still water *** these factors,the impact of the panel width on uplift forces is relatively *** shows that the relative panel width(i.e.,the ratio of panel width to wave length)plays a more important role in estimating the wave uplift *** on our comprehensive laboratory measurements,we further developed an empirical formula to compute wave uplift force on horizontal panels through dimensionless *** with other empirical formulas,this formula uses dimensionless variables of clear physical meanings,thus can describe the interaction between waves and the panels in a better *** addition,the efficiency of the formula to estimate wave uplift force on horizontal panels is verified against existing ***,the findings in this study shall be useful for understanding the mechanism of wave uplift force on horizontal panels and numerical model validation.

关键词： laboratory experiment wave-structure interaction horizontal panels wave uplift force empirical formula

Heterogeneous Nature of Calcium Silicate Hydrate(C-S-H) Gel:A Molecular Dynamics Study

在线全文

学校读者我要写书评

暂无评论

Journal of Wuhan University of Technology(Materials Science) 2020年第2期35卷 435-440页

作者： JIN Shucheng LI Jinhui XU Wenyuan DIng qingjun School of Civil Engineering Northeast Forestry UniversityHarbin 150040China School of Materials Science and Engineering Wuhan University of TechnologyWuhan 430070China

Structure and mechanical properties of Calcium silicate hydrate (C-S-H) at a molecular level act as "DNA" of cement-based construction *** order to understand loading resistance capability of C-S-H gel,research on molecular dynamics (MD) was carried out to simulate the uniaxial tension test on C-S-H model along x,y,and z *** to the structure and dynamic differences of the layered structure,the C-S-H model demonstrates heterogeneous mechanical *** an Xy plane,the cohesive force can reach 4 GPa,which is mainly provided by the Ca-O and Si-O ionic-covalent *** good plasticity of calcium silicate sheet is attributed to the silicate branch structure formation and the recovery role of interlayer calcium ***,in z direction,C-S-H layers connected by the unstable H-bonds network,have the weakest tensile strength 2.2 *** results in the brittle failure mode in z *** relatively low tensile strength and poor plasticity in z direction provides molecular insights into the tensile weakness of cement materials at macro-level.

关键词： molecular dynamics calcium silicate hydrate uniaxial tension test

Synergistic effect of various elements in Fe_(41)Co_(7)Cr_(15)Mo_(14)C_(15)B_(6)y_(2) amorphous alloy hollow ball on catalytic degradation of methylene blue

在线全文

学校读者我要写书评

暂无评论

Journal of Rare Earths 2022年第4期40卷 605-615,I0004页

作者： Wenhu Luo qingjun Chen Li Ji Xinyuan Peng Guosheng Huang School of Materials Science and Engineering Nanchang Hongkong UniversityNanchang 330063China State Key Laboratory for Marine Corrosion and Protection Luoyang Ship Material Research Institute(LSMRI)Qingdao 266237China

Metallic glasses have recently attracted great attention in terms of degrading dyes and other organic pollutants as an environmentally friendly material for wastewater ***,we report a new type of amorphous catalyst Fe_(41)Co_(7)Cr_(15)Mo_(14)C_(15)B_(6)y_(2) hollow *** demonstrate that the catalyst can still completely decolorize the 20 mg/L methylene blue(MB)solution after reused for 50 times under conditions of pH=5,catalyst content 0.5 g/L,and temperature 80°*** catalyst is easily broken during degradation,so the inner surface also provides additional active *** Fe_(41)Co_(7)Cr_(15)Mo_(14)C_(15)B_(6)y_(2) amorphous alloy hollow balls were characterized by energy dispersive X-ray specroscopy(EDS),scanning electron microscopy(SEM)and X-ray photoelectron spectroscopy(XPS),*** elements in the catalytic system have a synergistic catalytic *** cycle Fe^(2+)/Fe^(3+),Co^(2+)/Co^(3+)and Mo^(4+)/Mo^(6+) promote mutual conversion and accelerate the catalytic process of their reaction with H_(2)O_(2),forming a self-stable redox cycle *** them,Fe^(2+)promotes the conversion of Co^(3+)to Co^(2+),and Mo^(4+) promotes the conversion of Fe^(3+)to Fe^(2+),mainly Fe^(2+)and Co^(2+)react with H_(2)O_(2) to generate•*** and Cr elements form MoO_(2) and Cr_(2)O_(3) plasma compounds on the surface,which act as a protective film to make the catalyst more stable and be repeated used more frequently.

关键词： Metallic glasses Methylene blue degradation Synergistic catalytic Repeatability Hollow ball Rare earths