检索结果-南通市图书馆

An AI-empowered indoor digital contact tracing system for COVID-19 outbreaks in residential care homes

Infectious Disease Modelling 2024年第2期9卷 474-482页

作者： Jiahui Meng Justina Yat Wa Liu Lin Yang Man sing.Wong Hilda Tsang Boyu Yu Jincheng Yu Freddy Man-Hin Lam Daihai He Lei Yang Yan Li Gilman Kit-Hang Siu Stefanos Tyrovolas Yao Jie Xie David Man David H.K.Shum School of Nursing The Hong Kong Polytechnic UniversityHong Kong Special Administrative RegionChina Electronic and Information Engineering The Hong Kong Polytechnic UniversityHong Kong Special Administrative RegionChina Research Centre of Textiles for Future Fashion The Hong Kong Polytechnic UniversityHong Kong Special Administrative RegionChina Department of Land Surveying and Geo-Informatics The Hong Kong Polytechnic UniversityHong Kong Special Administrative RegionChina Department of Applied Mathematics The Hong Kong Polytechnic UniversityHong Kong Special Administrative RegionChina The Jockey Club School of Public Health and Primary Care The Chinese University of Hong KongHong Kong Special Administrative RegionChina Department of Rehabilitation Sciences The Hong Kong Polytechnic UniversityHong Kong Special Administrative RegionChina Department of Computing The Hong Kong Polytechnic UniversityHong Kong Special Administrative RegionChina Department of Health Technology and Informatics The Hong Kong Polytechnic UniversityHong Kong Special Administrative RegionChina Department of Nutrition and Food Studies George Mason UniversityUSA Tung Wah College Hong Kong Special Administrative RegionChina Mental Health Research Centre The Hong Kong Polytechnic UniversityHong Kong Special Administrative RegionChina

An AI-empowered indoor digital contact-tracing system was developed using.a centralized architecture and advanced low-energy Bluetooth technologies for indoor positioning,with careful preservation of privacy and data *** analyzed the contact pattern data from two RCHs and investigated a COVID-19 outbreak in one study *** evaluate the effectiveness of the system in containing outbreaks with minimal contacts under quarantine,a simulation study was conducted to compare the impact of different quarantine strategies on outbreak containment within *** significant difference in contact hours between weekdays and weekends was observed for some pairs of RCH residents and staff during the two-week data collection *** significant difference between secondary cases and uninfected contacts was observed in a COVID-19 outbreak in terms of their demographics and contact *** results based on the collected contact data indicated that a threshold of accumulative contact hours one or two days prior to diagnosis of the index case could dramatically increase the efficiency of outbreak containment within RCHs by targeted isolation of the close *** study demonstrated the feasibility and efficiency of employing an AI-empowered system in indoor digital contact tracing of outbreaks in RCHs in the post-pandemic era.

关键词： COVID-19 Indoor contact tracing Contact pattern Outbreak containment Artificial intelligence

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

模向各向导性和侧向非均匀N层模型中的勒夫波传播

引用

世界地震译丛 1989年第1期20卷 50-56页

作者： sing.,RD 邹钟毅

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

确定地层破裂压力的阶梯式试井的系统设计与分析

引用

油气田开发工程译丛 1990年第2期 12-22页

作者： sing.,PK 刘先德

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

Sorption behavior of coal for implication in coal bed methane an overview

引用

International Journal of Mining Science and Technology 2017年第2期27卷 307-314页

作者： Manasi manjari Mohanty Bhatu Kumar Pal N.I.T. Rourkela 769008OdishaIndia Mining Engineering Department N.I.T Rourkela 769008OdishaIndia

CBM has been recognized as a significant natural gas resource for a long time. Recently, CO_2 sequestration in coalbeds for ECBM has been attracting growing attention because of greater concerns about the effects of greenhouse gases and the emerging commercial significance of CBM. Reservoir-simulation technology,as a useful tool of reservoir development, has the capability to provide us with an economic means to solve complex reservoir-engineering problems with efficiency. The pore structure of coal is highly heterogeneous, and the heterogeneity of the pores depends on the coal type and rank.

关键词： ECBM Greenhouse gases Sequestration Adsorption and desorption Porosity and permeability

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

冠心病的宏量元素和微量元素的代谢

引用

国外医学（医学地理分册） 1993年第2期14卷 61-63页

作者： sing.,RB 邓欣珠

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

统计建模的统一展示

引用

数学译林 1993年第1期12卷 41-45页

作者： sing.,ND 成世学

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

Numerical simulation of solidification morphologies of Cu-0.6Cr casting alloy using.modified cellular automaton model

引用

Transactions of Nonferrous Metals Society of China 2010年第6期20卷 1072-1077页

作者： TSAI De-chang HWANG Weng-sing Department of Materials Science and Engineering National Cheng Kung University

The purpose of this study is to predict the morphologies in the solidification process for Cu-0.6Cr(mass fraction,%)alloy by vacuum continuous casting(VCC)and verify its accuracy by the observed experimental *** numerical simulation aspect, finite difference(FD)method and modified cellular automaton(MCA)model were used to simulate the macro-temperature field, micro-concentration field,nucleation and grain growth of Cu-0.6Cr alloy using.real data from actual casting *** the observed casting experiment,the preliminary grain morphologies are the directional columnar grains by the VCC *** solidification morphologies by MCAFD model are in agreement with the result of actual casting experiment well.

关键词： Cu-Cr alloy vacuum continuous casting solidification morphology simulation modified cellular automaton model finite difference method

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

Robust disturbance attenuation for uncertain nonlinear networked control systems

引用

控制理论与应用（英文版） 2010年第1期8卷 40-51页

作者： sing.Kiong NGUANG Department of Electrical and Computer Engineering University of Auckland

This paper considers the problem of robust disturbance attenuation for a class of uncertain nonlinear networked control systems. Takagi-Sugeno fuzzy models are firstly employed to describe the nonlinear plant. Markov processes are used to model the random network-induced delays and data packet dropouts. The Lyapunov-Razumikhin method has been used to derive such a controller for this class of nonlinear systems such that it is stochastically stabilizable with a disturbance attenuation level. Sufficient conditions for the existence of such a controller are derived in terms of the solvability of bilinear matrix inequalities. An iterative algorithm is proposed to change this non-convex problem into quasi-convex optimization problems, which can be solved effectively by available mathematical tools. The effectiveness of the proposed design methodology is verified by a numerical example.

关键词： Networked control system Takagi-Sugeno fuzzy model Robust disturbance attenuation

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

Fundamental Understanding and Optimization Strategies for Dual‑Ion Batteries:A Review

引用

Nano-Micro Letters 2023年第8期15卷 205-224页

作者： Chong Chen Chun‑sing.Lee Yongbing Tang Advanced Energy Storage Technology Research Center Shenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhen 518055People’s Republic of China University of Chinese Academy of Sciences Beijing 100049People’s Republic of China Center of Super‑Diamond and Advanced Film(COSDAF) City University of Hong KongKowloon 999077Hong KongSARPeople’s Republic of China

There has been increasing.demand for high-energy density and longcycle life rechargeable batteries to satisfy the ever-growing requirements for nextgeneration energy storage *** all available candidates,dual-ion batteries(DIBs)have drawn tremendous attention in the past few years from both academic and industrial battery communities because of their fascinating advantages of high working voltage,excellent safety,and environmental ***,the dynamic imbalance between the electrodes and the mismatch of traditional electrolyte systems remain *** fully employ the advantages of DIBs,the overall optimization of anode materials,cathode materials,and compatible electrolyte systems is urgently ***,we review the development history and the reaction mechanisms involved in ***,the optimization strategies toward DIB materials and electrolytes are *** addition,their energy-related applications are also ***,the research challenges and possible development directions of DIBs are outlined.

关键词： Dual-ion batteries Reaction mechanisms Optimization strategies Energy storage

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

过套管电阻率测井：二维和三维失真及校正技术

引用

测井科技 1996年第4期 46-55页

作者： sing.,BS 徐飒

最近几年，过套管电阻率测量证实了由Ａｌｐｉｎ（１９３９）提出并得到Ｋａｕｆｍａｎ（１９９０）和Ｖａｉｌ（１９９１）确认和完善的一种独特的构想。一种工业用测井仪器已能用来监测生产井、控制注水以及寻找在废弃井和生产井中的... 详细信息

最近几年，过套管电阻率测量证实了由Ａｌｐｉｎ（１９３９）提出并得到Ｋａｕｆｍａｎ（１９９０）和Ｖａｉｌ（１９９１）确认和完善的一种独特的构想。一种工业用测井仪器已能用来监测生产井、控制注水以及寻找在废弃井和生产井中的死油气。这项具有广阔潜在市场的新技术鼓舞了许多作者去研究它的可能性和局限性。过套管电阻率测量技术有几个困难。信号电平一般在ｎＶ范围内，用直流电仪器记录如此的信号有困难。

关键词：电阻率测井过套管电阻率二维三维失真校正

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：