检索结果-南通市图书馆

Electrode/Electrolyte Optimization-Induced Double-Layered Architecture for High-Performance Aqueous Zinc-(Dual) Halogen Batteries

引用

NANO-MICRO LETTERS 2025年第1期17卷 1-17页

作者： Zhou, Chengwang Ding, Zhezheng Ying, Shengzhe Jiang, Hao Wang, Yan Fang, Timing Zhang, You Sun, Bing tang, xiao Liu, xiaomin Qingdao Univ Sch Text & Clothing Sch Chem & Chem Engn Qingdao 266071 Shandong Peoples R China Univ Technol Sydney Fac Sci Ctr Clean Energy Technol Sch Math & Phys Sci Ultimo NSW 2007 Australia Henan Normal Univ Sch Chem & Chem Engn Xinxiang 453007 Henan Peoples R China

A double-layered protective film based on zinc-based coordination compound and ZnF2-rich solid electrolyte interphase layer has been successfully fabricated on the zinc metal anode via electrode/electrolyte synergistic *** double-layered architecture can effectively modulate Zn2+ flux and suppress the zinc dendrite growth, thus facilitating the uniform zinc *** as-developed zinc-(dual) halogen batteries based on double-layered protective film can present high areal capacity and satisfactory cycling stability. Aqueous zinc-halogen batteries are promising candidates for large-scale energy storage due to their abundant resources, intrinsic safety, and high theoretical capacity. Nevertheless, the uncontrollable zinc dendrite growth and spontaneous shuttle effect of active species have prohibited their practical implementation. Herein, a double-layered protective film based on zinc-ethylenediamine tetramethylene phosphonic acid (ZEA) artificial film and ZnF2-rich solid electrolyte interphase (SEI) layer has been successfully fabricated on the zinc metal anode via electrode/electrolyte synergistic optimization. The ZEA-based artificial film shows strong affinity for the ZnF2-rich SEI layer, therefore effectively suppressing the SEI breakage and facilitating the construction of double-layered protective film on the zinc metal anode. Such double-layered architecture not only modulates Zn2+ flux and suppresses the zinc dendrite growth, but also blocks the direct contact between the metal anode and electrolyte, thus mitigating the corrosion from the active species. When employing optimized metal anodes and electrolytes, the as-developed zinc-(dual) halogen batteries present high areal capacity and satisfactory cycling stability. This work provides a new avenue for developing aqueous zinc-(dual) halogen batteries.

关键词： Zn metal anodes Double-layered protective film Electrode/electrolyte optimization Aqueous zinc-(dual) halogen batteries

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

C^(0) conjugacy between PM functions with nonmonotonicity height equal to 1

引用

Science China Mathematics 2021年第9期64卷 1993-2006页

作者： xiao tang School of Mathematics Sichuan UniversityChengdu610064China

In this paper,a topological classification of piecewise monotone functions(abbreviated as PM functions)with nonmonotonicity height equal to 1 which are strictly increasing on their characteristic intervals and have fi... 详细信息

关键词： topological conjugacy PM function nonmonotonicity height piecewise construction

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

Meshwork Supported Fluid Film Model of Cell Membranes

引用

Chinese Physics Letters 1998年第10期15卷 770-771页

作者： tang xiao-wei Institute of High Energy Physics Chinese Academy of SciencesBeijing 100039

A new model of cell membranes,a meshwork supported fluid film model,is proposed by unifying the features of the fluid mosaic and the skeleton *** properties of cell membranes including cell shape,cell signaling,membra... 详细信息

关键词： skeleton Mesh fluid

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

Effect of WC/W_2C on the microstructure and abrasion resistance of high-boron hardfacing alloys

引用

Acta Metallurgica Sinica(English Letters) 2010年第6期23卷 439-445页

作者： Jianxun GONG Tianshun tang Yifeng xiao School of Mechanical Engineering Xiangtan University Xiangtan 411105 China

High boron hardfacing alloys reinforced with primary M2B phases on Q235 steel plates were prepared by the method of flux-cored wire submerged arc welding. The microstructure and boride morphology were investigated using optical microscopy （OM）, scanning electron microscopy （SEM） and X-ray diffraction （XRD）. The effect of WC/W2C on the microstructure was discussed. It indicated that the volume fraction of primary M2B phases has increased due to good nucleated cores of incompletely molten W2C particles provided by casting tungsten carbide or decarburizing reaction of WC powders. Abrasion resistance was evaluated by wet sand rubber wear tests and the wear mechanism was studied using SEM. It shows that primary M2B grains play a key role in improving abrasion resistance.

关键词： Primary M2B phases Abrasion resistance Microstructure Submerged arc welding

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

Preparation and characterization of organic polymer modified composite polyaluminum chloride

引用

Journal of Environmental Sciences 2006年第2期18卷 214-220页

作者： SHI Bao-you tang Hong-xiao State Key Laboratory of Environmental Aquatic Chemistry Chinese Academy of Sciences Beijing 100085 China

Compared with traditional aluminum salts, polyaluminum chloride （PACI） has better coagulation-flocculation performance in turbidity removal. However, it is still inferior to organic polymers in terms of bridging function. In order to improve the aggregating property of PACl, different composite PACl flocculants were prepared with various organic polymers. The effect of organic polymer on the distribution or Al（Ⅲ） species in composite flocculants was studied using ^27TAl NMR and Al-ferron complexation methods. The charge neutralization and surface adsorption characteristics of composite flocculants were also investigated. Jar tests were conducted to evaluate the turbidity removal efficacy of organic polymer modified composite flocculants. The study shows that cationic polymer and anionic polymer have significant influences on the coagulation-flocculation behaviors of PACl. Both cationic and anionic polymers can improve the turbidity removal performancc of PACl but the mechanisms arc much different： cationic organic polymer mainly increases the charge neutralization ability, but anionic polymer mainly enhances the bridging function.

关键词： polyaluminum chloride(PACl) organic polymer composite flocculant

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

Symmetry Analysis and Similarity Solutions of a Resonant Davey-Stewartson System

引用

Communications in Theoretical Physics 2009年第10期52卷 581-587页

作者： GAO Yuan tang xiao-Yan Department of Physics Shanghai Jiao Tong University Shanghai 200030 China

Lie point symmetry analysis is performed to a recently proposed(2+1)-dimensional nonlinear system,theresonant Davey-Stewartson *** similarity solutions of the RDS equation are thus obtained.

关键词： resonant Davey-Stewartson system symmetry similarity solution

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

Nitrogen cycling and environmental impacts in upland agricultural soils in North China： A review

引用

Journal of Integrative Agriculture 2017年第12期16卷 2848-2862页

作者： JU xiao-tang ZHANG Chong College of Resources and En vironmen tal Sciences China Agricultural University Beijing 100193 P.R. China

The upland agricultural soils in North China are distributed north of a line between the Kunlun Mountains, the Qinling Mountains and the Huaihe River. They occur in arid, semi-arid and semi-humid regions and crop production often depends on rain-fed or irrigation to supplement rainfall. This paper summarizes the characteristics of gross nitrogen（N） transformation, the fate of N fertilizer and soil N as well as the N loss pathway, and makes suggestions for proper N management in the region. The soils of the region are characterized by strong N mineralization and nitrification, and weak immobilization and denitrification ability, which lead to the production and accumulation of nitrate in the soil profile. Large amounts of accumulated nitrate have been observed in the vadose-zone in soils due to excess N fertilization in the past three decades, and this nitrate is subject to occasional leaching which leads to groundwater nitrate contamination. Under farmer＇s conventional high N fertilization practice in the winter wheat-summer maize rotation system（N application rate was approximately 600 kg ha–1 yr–1）, crop N uptake, soil residual N, NH_3 volatilization, NO_3~– leaching, and denitrification loss accounted for around 27, 30, 23, 18 and 2% of the applied fertilizer N, respectively. NH_3 volatilization and NO_3~– leaching were the most important N loss pathways while soil residual N was an important fate of N fertilizer for replenishing soil N depletion from crop production. The upland agricultural soils in North China are a large source of N_2O and total emissions in this region make up a large proportion（approximately 54%） of Chinese cropland N_2O emissions. The “non-coupled strong ammonia oxidation” process is an important mechanism of N_2O production. Slowing down ammonia oxidation after ammonium-N fertilizer or urea application and avoiding transient high soil NH4＋ concentrations are key measures for reducing N_2O emissions in this region. Further N management shou

关键词： N transformation NH3 volatilization ammonia oxidation NO3- leaching N2O emission upland agricultural soils

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

Hypothesis of Intracellular Signaling Based on the Cytoskeleton Network

引用

Chinese Physics Letters 1998年第11期15卷 849-850页

作者： tang xiao-wei DING Ming-xiao Institute of High Energy Physics Chinese Academy of SciencesBeijing 100039 Department of Cell Biology and Genetics Peking UniversityBeijing 100871

In order to explain the direction,speed and specificity of cell signaling a dual pathway hypothesis is *** this hypothesis the physical pathway is coupled to the biochemical *** an example,the propagation of a mechani... 详细信息

关键词： hypothesis skeleton specificity

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

Energy-efficient data collection for UAV-assisted IoT: Joint trajectory and resource optimization

引用

Chinese Journal of Aeronautics 2022年第9期35卷 95-105页

作者： xiao tang Wei WANG Hongliang HE Ruonan ZHANG School of Electronics and Information Northwestern Polytechinical UniversityXi'an 710072China National Mobile Communications Research Laboratory Southeast UniversityNanjing 210096China College of Electronic and Information Engineering Nanjing University of Aeronautics and AstronauticsNanjing 210016China College of Information Science and Technology College of Cyber SecurityJinan UniversityGuangzhou 510632China

Internet of Things(IoT) can be conveniently deployed while empowering various applications, where the IoT nodes can form clusters to finish certain missions collectively. As energyefficient operations are critical to prolong the lifetime of the energy-constrained IoT devices, the Unmanned Aerial Vehicle(UAV) can be dispatched to geographically approach the IoT clusters towards energy-efficient IoT transmissions. This paper intends to maximize the system energy efficiency by considering both the IoT transmission energy and UAV propulsion energy, where the UAV trajectory and IoT communication resources are jointly optimized. By applying largesystem analysis and Dinkelbach method, the original fractional optimization is approximated and reformulated in the form of subtraction, and further a block coordinate descent framework is employed to update the UAV trajectory and IoT communication resources iteratively. Extensive simulation results are provided to corroborate the effectiveness of the proposed method.

关键词： Block coordinate descent Data collection Dinkelbach method Energy efficiency Internet of Things(IoT) Unmanned aerial vehicle

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

SAR image despeckling with a multilayer perceptron neural network

引用

International Journal of Digital Earth 2019年第3期12卷 354-374页

作者： xiao tang Lei Zhang xiaoli Ding Department of Land Surveying and Geo-informatics The Hong Kong Polytechnic UniversityKowloonHong Kong

Speckle noise in synthetic-aperture radar (SAR) images severely hindersremote sensing applications;therefore, the appropriate removal ofspeckle noise is crucial. This paper elaborates on the multilayerperceptron (MLP) neural-network model for SAR image despeckling byusing a time series of SAR images. Unlike other filtering methods thatuse only a single radar intensity image to derive their parameters andfilter that single image, this method can be trained using archivedimages over an area of interest to self-learn the intensitycharacteristics of image patches and then adaptively determine theweights and thresholds by using a neural network for imagedespeckling. Several hidden layers are designed for feedforwardnetwork training, and back-propagation stochastic gradient descent isadopted to reduce the error between the target output and neuralnetwork output. The parameters in the network are automaticallyupdated in the training process. The greatest advantage of MLP is thatonce the despeckling parameters are determined, they can be used toprocess not only new images in the same area but also images incompletely different locations. Tests with images from TerraSAR-X inselected areas indicated that MLP shows satisfactory performance withrespect to noise reduction and edge preservation. The overall imagequality obtained using MLP was markedly higher than that obtainedusing numerous other filters. In comparison with other recentlydeveloped filters, this method yields a slightly higher image quality,and it demonstrates the powerful capabilities of computer learningusing SAR images, which indicate the promising prospect of applyingMLP to SAR image despeckling.

关键词： Multilayer perceptron synthetic aperture radar despeckling neural network

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：