检索结果-南通市图书馆

Noisy ECG Signal Data Transformation to Augment Classification Accuracy

Computers, Materials & Continua 2022年第5期71卷 2191-2207页

作者： Iqra Afzal Fiaz Majeed Muhammad Usman ali Shahzada Khurram Akber Abid Gardezi Shafiq Ahmad Saad Aladyan Almetwally M.Mostafa Muhammad Shafiq Department of Information Technology University of GujratGujrat50700Pakistan Department of Computer Science University of GujratGujrat50700Pakistan Faculty of Computing The Islamia University of BahawalpurBahawalpur63100Pakistan Department of Computer Science COMSATS University IslamabadIslamabadPakistan Industrial Engineering Department College of EngineeringKing Saud UniversityP.O.Box 800Riyadh 11421Saudi Arabia Department of Information Systems College of Computer and Information SciencesKing Saud UniversityP.O.Box 800Riyadh11421Saudi Arabia Department of Information and Communication Engineering Yeungnam UniversityGyeongsan38541Korea

In this era of electronic health,healthcare data is very important because it contains information about human *** addition,the Internet of Things(IoT)revolution has redefined modern healthcare systems and management by providing continuous *** this case,the data related to the heart is more important and requires proper *** the analysis of heart data,Electrocardiogram(ECG)is *** this work,machine learning techniques,such as adaptive boosting(AdaBoost)is used for detecting normal sinus rhythm,atrial fibrillation(AF),and noise in ECG signals to improve the classification *** proposed model uses ECG signals as input and provides results in the form of the presence or absence of disease AF,and classifies other signals as normal,other,or *** article derives different features from the signal using Maximal Information Coefficient(MIC)and minimum Redundancy Maximum Relevance(mRMR)technique,and then classifies them based on their *** the ECG contains some kind of noise and irregular data streams so the purpose of this study is to remove artifacts from the ECG signal by deploying the method of Second-Order-Section(SOS)(filter)and correctly classify *** features were extracted to improve the detection of ECG *** with existing methods,this work gives promising results and can help improve the classification accuracy of the ECG signals.

关键词： ECG atrial fibrillation adaptive boosting heart rate variability

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

FeOOH quantum dots decorated graphene sheet:An efficient electrocatalyst for ambient N2 reduction

引用

Nano Research 2020年第1期13卷 209-214页

作者： Xiaojuan Zhu Jinxiu Zhao Lei Ji Tongwei Wu Ting Wang Shuyan Gao Abdulmohsen ali Alshehri Khalid Ahmed Alzahrani Yonglan Luo Yimo Xiang Baozhan Zheng Xuping Sun Institute of Fundamental and Frontier Sciences University of Electronic Science and Technology of ChinaChengdu610054China Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province College of Chemistry and Chemical EngineeringChina West Normal UniversityNanchong637002China School of Materials Science and Engineering Henan Normal UniversityXinxiang453007China Chemistry Department Faculty of ScienceKing Abdulaziz UniversityP.O.Box 80203Jeddah21589Saudi Arabia No.12 Middle School Chengdu610041China College of Chemistry Sichuan UniversityChengdu610064China

Electrochemical N2 reduction offers a promising alternative to the Haber-Bosch process for sustainable NH3 synthesis at ambient conditions,but it needs efficient catalysts for the N2 reduction reaction(NRR).Here,we report that FeOOH quantum dots decorated graphene sheet acts as a superior catalyst toward enhanced electrocatalytic N2 reduction to NH3 under ambient *** 0.1 M LiClO4,this hybrid attains a large NH3 yield rate and a high Faradaic efficiency of 27.3µg·h^−1·mg−*** 14.6%at−0.4 V *** hydrogen electrode,respectively,rivalling the current efficiency of all Fe-based NRR electrocatalysts in aqueous *** also shows strong durability during the electrolytic process.

关键词： FeOOH quantum dots decorated graphene sheet N2 reduction reaction NH3 electrosynthesis ambient conditions

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

Farm Mechanization Industry is Moving into High Gear

引用

农机市场 2018年第7期 18-19页

作者： S.K.ali 不详

India has the second largest amount of arable land of any country after the *** the total land area of the country is only slightly more than one third of China’s,India’s arable land is marginally bigger than China’*** India is the second largest producer of rice and wheat after China,with China producing about 40%more rice and wheat than *** is also the second largest producer of fruits and vegetables in the world after China,but China’s fruit production is three times India’s *** is first,however,in the production of mangoes and *** it comes to spices,India is number one in production,consumption and exports.

关键词：

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

Discovery of deep-level foreland thrust-fold structures in Taihang *** its implication for early tectonic evolution of North China

引用

Progress in Natural Science:Materials International 2005年第3期 37-46页

作者： Timothy M KUSKY,ali POLAT Department of Earth and Atmospheric Sciences Saint Louis University St.Louis MO63103 USA Department of Earth Sciences University of Windsor Windsor ON N9B3P4 Canada

Delineation and correlation of Dragon Spring Shear Zone with its deep-level structures at foreland have been studied by field *** paper reports our new findings of thrust-fold structures within Taihang Neoarchean basement,which include flat thrusts,large-scale recumbent folds,subhorizontal foliation patterns,*** reveals that early tectonic evolution of North China clearly involves the horizontal contraction on a large scale,comparable to those of foreland of classical collisional orogenic *** vertical variation of struc-tural patterns with foreland fold-thrust belt from shallow to deep levels has been documented for Taihang *** structural correlation,which is associated with tectonic transposition and imbrication of basement complex with supracrustal sequences in the Neoarchean.

关键词： recumbent fold shear zone crustal thickening collisional tectonics foreland Neoarchean.

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

电子经纬仪的比较检测

引用

测绘译丛 1993年第4期 44-47页

作者： ali,AE

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

Automation of Fingerprint Recognition Using OCT Fingerprint Images

引用

Journal of Signal and Information Processing 2012年第1期3卷 117-121页

作者： Nasibe Akbari ali Sadr Iran University of Science and Technology Tehran Iran.

Automated recognition of a person is one of the most critical issues in the modern society. Common biometric systems rely on the surface topography of an object and, thus, are potentially vulnerable for spoofing. Optical coherence tomography is a technology that has the capability to probe the internal structure of multilayered tissues. The paper describes an algorithm for automation fingerprint recognition that the algorithm is applied on the OCT fingerprint images. This algorithm is based on scanning of the enhanced and segmented OCT images.

关键词： Optical Coherence Tomography Speckle Denoising Fingerprint Recognition

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

Invariant Relative Orbits Taking into Account Third-Body Perturbation

引用

Applied Mathematics 2012年第2期3卷 113-120页

作者： Walid ali Rahoma Gilles Metris Department of Astronomy Faculty of ScienceCairo UniversityCairoEgypt Observatoire de la Côte d’Azur GrasseFrance

For a satellite in an orbit of more than 1600 km in altitude, the effects of Sun and Moon on the orbit can’t be negligible. Working with mean orbital elements, the secular drift of the longitude of the ascending node and the sum of the argu-ment of perigee and mean anomaly are set equal between two neighboring orbits to negate the separation over time due to the potential of the Earth and the third body effect. The expressions for the second order conditions that guaran-tee that the drift rates of two neighboring orbits are equal on the average are derived. To this end, the Hamiltonian was developed. The expressions for the non-vanishing time rate of change of canonical elements are obtained.

关键词： Invariant Relative Orbits Third-Body Perturbation Hamiltonian

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

Evaluation of Solar Energy Potential for the Red Sea Project, Kingdom of Saudi Arabia

引用

Natural Resources 2019年第4期10卷 96-114页

作者： Ahmad Siouti Atef Belhaj ali Department of Geography and GIS Faculty of Arts and Humanities King Abdul Aziz University Jeddah KSA

There has been extreme utilization of petroleum derivatives in recent decades for the generation of electrical vitality, which is contaminating nature in a regularly expanding approach to respond to the exponential demand for electrical power. In light of the essential vision of Saudi Arabia’s government towards the fractional change of reliance on oil as a national wellspring of economy, there is consideration for dependence on resources available inside the country, especially the potentials of renewable sources as alternatives. Saudi Arabia appreciates its geographical advantage inside the sun-belt zone, which has the most impressive sun-situated radiation total on earth. It is a correlative ideal position to consider interest in this valuable asset, through which it can achieve its vision by virtue of its promising whole deal prospects. This study highlights an approach for creating sunlight-based maps that examines the intensity of sun-radiation and its viability to deliver power. The system is to record the measures of sunlight radiation from several allocated data acquisition sites over the study area and balance them with the standard count, and later, make a sun-map in light of the yield. Likewise, the study will register the rate of energy from sun-situated radiation for the area and make preliminary proposals for the achievement of this test.

关键词： Solar Energy GHI DNI DHI Photovoltaics Red Sea Project

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

CITIUS,ALTIUS,FORTIUS…BEIJING

引用

Voice of Friendship 2008年第5期 9-10,7页

作者： Syed ali Nawaz Gilani

The dawn of August 8th, 2008 will witness thegr and opening ceremony of the 29th Olympics in Beijing. The world’s most prestigious mega sporting event where athletes & delegations from

关键词： Olympics ceremony witness BEIJING party sports qua

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

Study of non-revenue water status and enforcement measures to reduce water loss:case study in villages of Kermanshah Province of Iran

引用

Chinese Journal of Population,Resources and Environment 2017年第4期15卷 351-356页

作者： Seyyed alireza Mousavi Iraj Shahbazi Hosna Janjani Rastegar Veysinejad ali Asgar Sobhani Mehdi Bakhti Department of Environmental Health Engineering and Research Center for Environmental Determinants of Health (RCEDH) Faculty of Public Health Kermanshah University of Medical Sciences Rural Water and Wastewater Company of Kermanshah Province Student Research Committee Kermanshah University of Medical Sciences

In this study, the volume and the cash value of water loss, and reduction of water loss as a result of enforcement action during 2011-2013 in the drinking water network of villages in Kermanshah Province, tran, have been investigated. Date collected by referring to the different parts of rural water and waste water company of Kermanshah Province and checklist were completed. The study showed the volume of produced water and sold water has increased and the water loss percentage has decreased. High cost of water production compared to revenue of sold water and water loss resulted in significant detriments in terms of the water production costs. Water loss level decreased from 33% to 30% as result of measures taken to reduce water loss but, it is still 15% higher than the world average level. Also the reduction in number of water resources and increase in the number and volume of reservoirs indicates a lack of water and a growing need. As result of high water loss, waste of costs in the contrast of water production cost and also because physical water loss accounts for most of the water loss of villages, necessary measures can be effective in reducing loss and have economic justification.

关键词： Non-revenue water waterloss cost enforcementmeasure KermanshahProvince

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

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：