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Enhanced Fingerprinting Based Indoor Positioning Using Machine Learning

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Computers, Materials & Continua 2021年第11期69卷 1631-1652页

作者： Muhammad Waleed Pasha Mir yasir Umair Alina Mirza Faizan Rao Abdul Wakeel Safia Akram Fazli Subhan Wazir Zada Khan Department of Electrical Engineering National University of Sciences and TechnologyIslamabad44000Pakistan Department of Computer Engineering National University of Modern Languages(NUML)Islamabad44000Pakistan Faculty of Computing Capital University of Science and TechnologyIslamabad44000Pakistan

Due to the inability of the Global Positioning System(GPS)signals to penetrate through surfaces like roofs,walls,and other objects in indoor environments,numerous alternative methods for user positioning have been *** those,the Wi-Fi fingerprinting method has gained considerable interest in Indoor Positioning Systems(IPS)as the need for lineof-sight measurements is minimal,and it achieves better efficiency in even complex indoor *** and online are the two phases of the fingerprinting *** researchers have highlighted the problems in the offline phase as it deals with huge datasets and validation of Fingerprints without pre-processing of data becomes a *** learning is used for the model training in the offline phase while the locations are estimated in the online *** researchers have considered the concerns in the offline phase as it deals with huge datasets and validation of Fingerprints becomes an *** learning algorithms are a natural solution for winnowing through large datasets and determining the significant fragments of information for localization,creating precise models to predict an indoor *** training sets are a key for obtaining better results in machine learning ***,an existing WLAN fingerprinting-based multistory building location database has been used with 21049 samples including 19938 training and 1111 testing *** proposed model consists of mean and median filtering as pre-processing techniques applied to the database for enhancing the accuracy by mitigating the impact of environmental dispersion and investigated machine learning algorithms(kNN,WkNN,FSkNN,and SVM)for estimating the *** proposed SVM with median filtering algorithm gives a reduced mean positioning error of 0.7959 m and an improved efficiency of 92.84%as compared to all variants of the proposed method for 108703 m^(2) area.

关键词： Indoor positioning system fingerprinting received signal strength indicator mean position error support vector machine

Spatial Pattern of Cotton Yield Variability and Its Response to Climate Change in Cotton Belt of Pakistan

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Chinese Geographical Science 2023年第2期33卷 351-362页

作者： YU Shan DU Wala ZHANG Xiang HONG Ying LIU Yang HONG Mei CHEN Siyu College of Geographic Science Inner Mongolia Normal UniversityHohhot 010022China Inner Mongolia Key Laboratory of Remote Sensing and Geographic Information Systems Hohhot 010022China Institute of Grassland Research Chinese Academy of Agricultural SciencesHohhot 010000China College of Science Inner Mongolia University of TechnologyHohhot 010051China

Cotton is a revenue source for cotton-producing countries;as the second-largest crop in Pakistan,it significantly contributes to its *** the past few decades,cotton productivity has become unstable in Pakistan,and climate change is one of the main factors that impact cotton *** to climate change,it becomes very important to understand the change trend and its impact on cotton yield at the regional ***,we investigate the relationship of standardized cotton yield variability with the variability of climate factors using a 15-yr moving *** piecewise regression was fitted to obtain the trend-shifting point of climate *** results show that precipitation has experienced an overall decreasing trend of–0.64 mm/yr during the study period,with opposing trends of–1.39 mm/yr and 1.52 mm/yr before and after the trend-shifting point,*** found that cotton yield variability increased at a rate of 0.17%/yr,and this trend was highly correlated with the variability of climate *** multiple regression analysis explains that climate variability is a dominant factor and controlled 81%of the cotton production in the study area from 1990 to 2019,while it controlled 73%of the production from 1990 to 2002 and 84%from 2002 to *** findings reveal that climate factors affact the distinct spatial pattern of changes in cotton yield variability at the tehsil level.

关键词： cotton crop yield variability climate impact on cotton yield regression analysis 15-yr moving window Pakistan

Photocatalyzed Dual-Oxidative Trifluoromethylthio-Trifluoromethylation of Alkenes with CF3SO2Na

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CCS Chemistry 2021年第12期3卷 265-273页

作者： Shuaishuai Liang Jingjing Wei Lvqi Jiang Jie Liu yasir Mumtaz Wenbin Yi School of Chemical Engineering Nanjing University of Science and TechnologyNanjingJiangsu 210094 Key Laboratory of Organofluorine Chemistry Shanghai Institute Organic ChemistryChinese Academy of SciencesShanghai 200032

A novel photocatalyzed trifluoromethylthio-trifluoromethylation of alkenes has been developed,using CF_(3)SO_(2)Na as both CF_(3) and SCF_(3) *** photocatalyzed dual-oxidative strategy,which combines two parallel oxidative events,provides a facile method to synthesize a series of vicinal trifluoromethylthio-trifluoromethylated *** reaction is operationally simple,proceeds under mild conditions and exhibits exceptional substrate generality and functional group compatibility.

关键词： trifluoromethyl trifluoromethylthio photochemistry difunctionalization alkene

Hepatitis C eradication: A long way to go

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World Journal of Gastroenterology 2015年第43期21卷 12510-12512页

作者： yasir Waheed Foundation University Medical College Foundation University Islamabad

Hepatitis C virus(HCV) is a major global health problem with high morbidity and mortality. About 185 million people are living with HCV,of which 80% are living in low and middle income countries. With the development of new highly effective treatments for HCV,it is considered that the eradication of HCV may only be one step away. The major problem with new treatment options is its high price. The price of sofosbuvir-based treatment for one patient in the United States is US$85000-110000,while the actual production cost of a 12 wk direct-acting antiviral regimen is less than US$250. Another major hindrance in HCV eradication is the lack of quality management of blood transfusion screens. Due to the lack of HCV screening,75% of people in the United States with HCV infection are unaware of their positive HCV status. The control of massive HCV pandemic will require a significant financial investment,political will,and support from medical,pharmaceutical,and civil organizations around the globe.

关键词： Hepatitis C virus Treatment Diagnostics Screening

China’s Economic Growth Vibes in SAARC, ASEAN

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China Today 2018年第5期67卷 40-41页

作者： yasir HABIB KHAN International Center for Journalist (ICFJ)

SINCE South Asian Association for Regional Cooperation(SAARC)and Association of Southeast Asian Nations(ASEAN)countries are becoming the largest recipients of economic leverage unleashed by China over the last few years,a flurry of financial,trade,and infrastructure fortunes pour into both *** augurs well for South Asia(SA)and Southeast Asia(SEA)to channelize their development growth and blossom into leading economies of the *** their upswing progress trajectory,international monetary and financial institutions label both

关键词：经济中国生长亚洲国家基础结构铁地区性亚洲人

Role of Ocimum sanctum leaf extract on dietary supplementation in the transgenic Drosophila model of Parkinson's disease

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Chinese Journal of Natural Medicines 2014年第10期12卷 777-781页

作者： yasir Hasan Siddique Mohammad Faisal Falaq Naz Smita Jyoti Rahul Drosophila Transgenic Laboratory Section of GeneticsDepartment of ZoologyFaculty of Life SciencesAligarh Muslim UniversityAligarhUttar PradeshIndia Forest Entomology Division Forest Research InstituteDehradun

AIM: To evaluate the effect of Ocimum sanctum leaf extract on the dietary supplementation in the transgenic Drosophila model of Parkinson's disease. METHOD: The effect of Ocimum sanctum leaf extract was studied on the transgenic Drosophila model of flies expressing normal human alpha synuclein(h-αs) in the neurons. O. sanctum extract at final concentrations of 0.042 8 × 10-4, 0.87 × 10-4, and 1.85 × 10-4 g·mL-1 of diet were established and the flies were allowed to feed for 21 days. The climbing assay and lipid peroxidation were taken as parameters for the study. RESULTS: The supplementation of O. sanctum extract showed a dose-dependent significant delay in the loss of climbing ability and reduction in oxidative stress in the brain of PD model flies. CONCLUSION: The results of the present study showed that the O. sanctum extract is potent in reducing the PD symptoms in transgenic Drosophila model.

关键词：帕金森疾病呈现喂食允许

Unshaken Solidarity in Fighting the Virus Outbreak——Interview with Long Dingbin, Chinese Consul General in Lahore, Pakistan

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China Today 2020年第3期69卷 48-50页

作者： yasir HABIB KHAN Institute of International Relations and Media Research

CHINA is taking up the challenge to offset the severity of the novel coronavirus outbreak in one fell swoop mostly in China as well as around the globe. In this difficult time, China made the difficult decision to lock down the province of Hubei to save the country and the rest of the world from the spread of virus. yasir Habib Khan, China Today's special correspondent in Pakistan, interviewed Chinese Consul General in Lahore Long Dingbin. Long appreciated Pakistan's congenial support and unshaken solidarity at the time when China direly needed it.

关键词： Pakistan interview mostly

BRI:Empowering South Asia

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China Today 2018年第10期67卷 26-28页

作者： yasir HABIB KHAN CRI the International Center for Journalists

DISPROVING all qualms and critics’ pontifications that the Belt and Road Initiative (BRI)has bedeviled South Asia by landing economies in debt traps, controlling markets, and manipulating governments; the BRI is empowering south Asian nations through broad-based upturn in regional connectivity, innovative infrastructure,socio-economic growth, poverty alleviation, employment fortunes, and financial *** the last five years, the BRI, the epic

关键词： BRI 南亚授权社会经济基础结构地区性亚洲人陷井

Decoding the Secrets of the CPC’s Success

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China Today 2021年第8期70卷 46-47页

作者： yasir HABIB KHAN China Today

DURING the span of 100 years since the founding of the Communist Party of China(CPC)in 1921,the CPC has been a party adhering to a people-centered governance philosophy,dedicated to improving people’s lives and reali... 详细信息

关键词： CPC founding centered