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A Framework for Enhancing Privacy and Anonymity in Blockchain-Enabled IoT Devices

Computers, Materials & Continua 2024年第3期78卷 4263-4282页

作者： muhammad Saad muhammad raheel bhutta Jongik Kim Tae-Sun Chung Department of Artificial Intelligence Ajou UniversitySuwon443-749Korea Department of Electrical and Computer Engineering University of Utah Asia CampusIncheon21985Korea Department of Artificial Intelligence Chungnam National UniversityDaejeon34134Korea

With the increase in IoT(Internet of Things)devices comes an inherent challenge of *** the world today,privacy is the prime concern of every *** one’s privacy and keeping anonymity throughout the system is a desired functionality that does not come without inevitable trade-offs like scalability and increased complexity and is always exceedingly difficult to *** challenge is keeping confidentiality and continuing to make the person innominate throughout the *** address this,we present our proposed architecture where we manage IoT devices using blockchain *** proposed architecture works on and off blockchain integrated with the closed-circuit television(CCTV)security camera fixed at the rental *** this framework,the CCTV security camera feed is redirected towards the owner and renter based on the smart contract *** entity(owner or renter)can see the CCTV security camera feed at one *** is no third-party dependence except for the CCTV security camera deployment *** contributions include the proposition of framework architecture,a novel smart contract algorithm,and the modification to the ring signatures leveraging an existing cryptographic *** are made based on different systems’security and key management *** an empirical study,our proposed algorithm performed better in key generation,proof generation,and verification *** comparing similar existing schemes,we have shown the proposed architectures’*** now,we have developed this system for a specific area in the real ***,this system is scalable and applicable to other areas like healthcare monitoring systems,which is part of our future work.

关键词： Privacy anonymity blockchain IoT smart contracts

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Early Detection of Diabetic Retinopathy Using Machine Intelligence throughDeep Transfer and Representational Learning

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Computers, Materials & Continua 2021年第2期66卷 1631-1645页

作者： Fouzia Nawaz muhammad Ramzan Khalid Mehmood Hikmat Ullah Khan Saleem Hayat Khan muhammad raheel bhutta Department of Computer Science and Information Technology University of SargodhaSargodha40100Pakistan and School of Systems and TechnologyUniversity of Management and TechnologyLahore54782Pakistan Department of Computer Science COMSATS University IslamabadWah CampusIslamabadPakistan University Hospital Birmingham BirminghamUK Shifa International Hospital IslamabadPakistan Department of Computer Science and Engineering Sejong UniversitySeoulKorea

Diabetic retinopathy (DR) is a retinal disease that causes irreversible *** occurs due to the high blood sugar level of the patient, and it is clumsy tobe detected at an early stage as no early symptoms appear at the initial level. To preventblindness, early detection and regular treatment are needed. Automated detectionbased on machine intelligence may assist the ophthalmologist in examining thepatients’ condition more accurately and efficiently. The purpose of this study is toproduce an automated screening system for recognition and grading of diabetic retinopathyusing machine learning through deep transfer and representational *** artificial intelligence technique used is transfer learning on the deep neural network,Inception-v4. Two configuration variants of transfer learning are applied onInception-v4: Fine-tune mode and fixed feature extractor mode. Both configurationmodes have achieved decent accuracy values, but the fine-tuning method outperformsthe fixed feature extractor configuration mode. Fine-tune configuration modehas gained 96.6% accuracy in early detection of DR and 97.7% accuracy in gradingthe disease and has outperformed the state of the art methods in the relevant literature.

关键词： Diabetic retinopathy artificial intelligence automated screening system machine learning deep neural network transfer and representational learning

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Left bundle branch pacing vs biventricular pacing in heart failure patients with left bundle branch block:A systematic review and meta-analysis

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World Journal of Cardiology 2024年第1期16卷 40-48页

作者： Farah Yasmin Abdul Moeed Rohan Kumar Ochani Hamna raheel Malik Ali Ehtsham Awan Ayesha Liaquat Arisha Saleem muhammad Aamir Nael Hawwa Salim Surani Department of Internal Medicine Yale University School of MedicineNew HavenCT 06511United States Department of Medicine Dow University of Health ScienceKarachi 74200SindhPakistan Department of Medicine SUNNY Upstate Medical UniversitySyracuseNY 13210United States Department of Cardiovascular Medicine Lehigh Valley Heart and Vascular InstituteAllentownPA 18105United States Department of Medicine Cleveland ClinicClevelandOH 44195United States Department of Medicine&Pharmacology Texas A&M UniversityCollege StationTX 77843United States

BACKGROUND Left bundle branch pacing(LBBP)is a novel pacing modality of cardiac resynchronization therapy(CRT)that achieves more physiologic native ventricular activation than biventricular pacing(BiVP).AIM To explore the validity of electromechanical resynchronization,clinical and echocardiographic response of *** Systematic review and Meta-analysis were conducted in accordance with the standard guidelines as mentioned in detail in the methodology *** In our analysis,the success rate of LBBP-CRT was determined to be 91.1%.LBBP CRT significantly shortened QRS duration,with significant improvement in echocardiographic parameters,including left ventricular ejection fraction,left ventricular end-diastolic diameter and left ventricular end-systolic diameter in comparison with *** A significant reduction in New York Heart Association class and B-type natriuretic peptide levels was also observed in the LBBP-CRT group vs BiVP-CRT ***,the LBBP-CRT cohort had a reduced pacing threshold at follow-up as compared to BiVP-CRT.

关键词： Left bundle branch pacing Biventricular pacing QRS duration Left ventricular ejection fraction Heart failure

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COVID-19:Effect on gastroenterology and hepatology service provision and training:Lessons learnt and planning for the future

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World Journal of Gastroenterology 2021年第44期27卷 7625-7648页

作者： muhammad raheel Anjum Jodie Chalmers Rizwana Hamid Neil Rajoriya Department of Gastroenterology The Royal Wolverhampton NHS TrustWolverhampton WV100QPUnited Kingdom Department of Medicine Queen Elizabeth HospitalUniversity Hospitals Birmingham NHS Foundation TrustBirmingham B152WBUnited Kingdom Department of Gastroenterology Royal Alexandria HospitalPaisley PA29PJScotlandUnited Kingdom Queen Elizabeth Hospital University Hospitals Birmingham NHS Foundation TrustBirmingham B152WBUnited Kingdom Institute of Immunology and Immunotherapy University of BirminghamBirmingham B152TTUnited Kingdom

In late 2019,reports arose of a new respiratory disease in China,identified as a novel coronavirus,severe acute respiratory syndrome coronavirus *** World Health Organisation named the disease caused by the virus‘coronavirus disease 2019(COVID-19)’.It was declared a pandemic in early 2020,after the disease rapidly spread across the ***-19 has not only resulted in substantial morbidity and mortality but also significantly impacted healthcare service provision and training across all medical specialties with gastroenterology and Hepatology services being no ***,most,if not all‘nonurgent’services have been placed on hold during surges of *** a result there have been delayed diagnoses,procedures,and surgeries which will undoubtedly result in increased morbidity and *** services have been converted to remote consultations where possible in many *** have been redeployed to help care for COVID-19 patients in other settings,resulting in disruption to their training-particularly endoscopy and outpatient *** has led to significant anxiety amongst trainees,and risks prolongation of *** is of the utmost importance to develop strategies that continue to support COVID-19-related service provision,whilst also supporting existing and future gastroenterology and Hepatology services and *** to healthcare provision during the pandemic have generated new and improved frameworks of service and training delivery,which can be adopted in the post-COVID-19 world,leading to enhanced patient care.

关键词： COVID-19 Gastroenterology Hepatology Training Service provision

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Poly(vinyl alcohol)/GO-MMT Nanocomposites: Preparation, Structure and Properties

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Chinese Journal of Polymer Science 2015年第2期33卷 329-338页

作者： muhammad raheel Kun Yao Jiang Gong 陈学成 Dong-tao Liu Yi-chao Lin Dong-mei Cui muhammad Siddiq 唐涛 State Key Laboratory of Polymer Physics and Chemistry Changchun Institute of Applied ChemistryChinese Academy of Sciences Department of Chemistry Quaid-i-Azam University

A facile, efficient and environment friendly method is established to prepare poly（vinyl alcohol）（PVA） based graphene oxide-montmorillonite（GO-MMT） nanocomposites in aqueous media. GO-MMT nanohybrid is obtained by the combination of GO and MMT in water without any reducing or stabilizing agents. The formation of GO-MMT nanohybrid is due to the hydrogen bonding and crosslinking effects. The sodium ions within MMT sheets act as crosslinkers between GO sheets and MMT platelets. The resultant nanocomposites are characterized by means of X-ray diffraction（XRD）, scanning electron microscopy（SEM）, differential scanning calorimetry（DSC）, thermogravimetric analysis（TGA） and mechanical testing. Compared to that of pure PVA, PVA nanocomposites show enhanced thermal stabilities and mechanical properties, which results from strong interfacial adhesion of the nanoadditives in PVA matrix. The further increase in the tensile strength and modulus results from strong interaction between PVA chains and layered GO-MMT as well as good mechanical properties of GO-MMT hybrid, compared to PVA/GO and PVA/MMT nanocompsoites.

关键词： Clay Graphene oxide Nanocomposites Poly(vinyl alcohol)

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Adaptive Multi-Cost Routing Protocol to Enhance Lifetime for Wireless Body Area Network

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Computers, Materials & Continua 2022年第7期72卷 1089-1103页

作者： muhammad Mateen Yaqoob Waqar Khurshid Leo Liu Syed Zulqarnain Arif Imran Ali Khan Osman Khalid raheel Nawaz Department of Computer Science COMSATS University IslamabadAbbottabad Campus22060Pakistan Department of OTEHM Manchester Metropolitan UniversityManchesterUK

Wireless Body Area Network(WBAN)technologies are emerging with extensive applications in several *** is a fascinating domain of WBAN for smart monitoring of a patient’s *** important factor to consider in WBAN is a node’s *** the lifetime of nodes is critical to address many issues,such as utility and *** routing protocols have addressed the energy conservation problem but considered only a few parameters,thus affecting their ***,most of the existing schemes did not consider traffic prioritization which is critical in *** this paper,an adaptive multi-cost routing protocol is proposed with a multi-objective cost function considering minimum distance from sink,temperature of sensor nodes,priority of sensed data,and maximum residual energy on sensor *** performance of the proposed protocol is compared with the existing schemes for the parameters:network lifetime,stability period,throughput,energy consumption,and path *** is evident from the obtained results that the proposed protocol improves network lifetime and stability period by 30%and 15%,respectively,as well as outperforms the existing protocols in terms of throughput,energy consumption,and path loss.

关键词： Multi-cost routing protocol network lifetime wireless body area network adaptive routing residual energy clustering poisson distribution

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Cloud-based ***-based IoT:a comparative survey and way forward

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Frontiers of Information Technology & Electronic Engineering 2020年第4期21卷 563-586页

作者： raheel Ahmed MEMON Jian Ping LI Junaid AHMED muhammad Irshad NAZEER muhammad ISMAIL Khursheed ALI School of Computer Science and Technology University of Electronic Science and Technology of ChinaChengdu 610031China Department of Computer Science Sukkur IBA UniversitySukkur 65200Pakistan School of Automation University of Electronic Science and Technology of ChinaChengdu 610031China

The Internet of Things(IoT)has been evolving for more than a *** advancements have increased its popularity,but concerns and risks related to IoT are growing considerably along with the increased number of connected *** 2013,a new cryptography-based infrastructure called blockchain emerged with the potential to replace the existing cloud-based infrastructure of IoT through *** this article,we provide a taxonomy of the challenges in the current IoT infrastructure,and a literature survey with a taxonomy of the issues to expect in the future of the IoT after adopting blockchain as an *** two architectures are compared based on their strengths and *** a brief survey of ongoing key research activities in blockchain is presented,which will have considerable impact on overcoming the challenges encountered in the applicability of blockchain in ***,considering the challenges and issues in both infrastructures and the latest research activities,we propose a high-level hybrid IoT approach that uses the cloud,edge/fog,and blockchain together to avoid the limitations of each infrastructure.

关键词： Internet of Things(IoT) Cloud Blockchain Data center Taxonomy

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Novel mutations in PDE6A and CDHR1 cause retinitis pigmentosa in Pakistani families

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International Journal of Ophthalmology(English edition) 2021年第12期14卷 1843-1851页

作者： muhammad Dawood Siying Lin Taj Ud Din Irfan Ullah Shah Niamat Khan Abid Jan muhammad Marwan Komal Sultan Maha Nowshid raheel Tahir Asif Naveed Ahmed muhammad Yasin Emma LBaple Andrew HCrosby Shamim Saleha Department of Biotechnology and Genetic Engineering Kohat University of Science and Technology(KUST)Kohat 26000Khyber PakhtunkhwaPakistan Medical Research RILD Wellcome Wolfson Centre(Level 4)Royal Devon and Exeter NHS Foundation TrustExeterDevon EX25DWUK Department of Ophthalmology KMU Institute of Medical Sciences(KIMS)Kohat 26000Khyber PakhtunkhwaPakistan

AIM:To investigate the genetic basis of autosomal recessive retinitis pigmentosa(arRP)in two consanguineous/endogamous Pakistani ***:Whole exome sequencing(WES)was performed on genomic DNA samples of patients with arRP to identify disease causing *** sequencing was performed to confirm familial segregation of identified mutations,and potential pathogenicity was determined by predictions of the mutations’***:A novel homozygous frameshift mutation[NM_000440.2:c.1054delG,p.(Gln352Argfs*4);Chr5:g.149286886del(GRCh37)]in the PDE6A gene in an endogamous family and a novel homozygous splice site mutation[NM_033100.3:c.1168-1G>A,Chr10:g.85968484G>A(GRCh37)]in the CDHR1 gene in a consanguineous family were *** PDE6A variant p.(Gln352Argfs*4)was predicted to be deleterious or pathogenic,whilst the CDHR1 variant c.1168-1G>A was predicted to result in potential alteration of ***:This study expands the spectrum of genetic variants for arRP in Pakistani families.

关键词： autosomal recessive retinitis pigmentosa PDE6A CDHR1 variants Pakistani families

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中国区域生态经济投入效益测度及其时空演化分析

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中国人口·资源与环境 2017年第11期27卷 10-20页

作者：马歆 muhammad raheel 薛天天王继东华北水利水电大学管理与经济学院河南郑州450046 华中科技大学经济学院湖北武汉430074

在政府强化环境绩效考核的当下,科学考察中国区域生态经济投入效益时空演化规律,对于中国实现经济发展与环境保护双赢具有重要的现实意义。基于此,本文采用2003—2014年中国大陆30个省、市和自治区数据,考虑废水、化学需氧量、工业废气... 详细信息

在政府强化环境绩效考核的当下,科学考察中国区域生态经济投入效益时空演化规律,对于中国实现经济发展与环境保护双赢具有重要的现实意义。基于此,本文采用2003—2014年中国大陆30个省、市和自治区数据,考虑废水、化学需氧量、工业废气和工业烟(粉)尘等非期望产出,构建SBM-DEA超效率模型测算中国区域生态经济投入效益水平。并基于空间经济学的视角,对区域生态经济投入效益时空演化格局进行分析。结果显示:(1)区域生态经济投入效益呈现从东部沿海向西部内陆地区逐渐递减的地带性差异;(2)要素配置失衡导致资源投入效率存在"短板效应",各区域表现出不同的资源投入松弛量空间分布状态、生态经济投入效益无法达到最优状态;(3)空间全局Moran's I指数证实区域生态经济投入效益逐步由较强的空间集聚状态向较弱集聚状态转变;(4)Getis-Ord Gi*指数结果表明,热点和次热点区域呈现出与生态经济投入效益较为一致的地带性分布;(5)重心移动轨迹曲折,东西往复摆动,表明中国区域生态经济投入效益分布存在振荡演化趋势。这意味着:要重视省际间的经济联系,强化区域联动和产业分工,在结构转换的带动下提升资源的配置效率;逐步引导企业成为科技研发投入的主体,使研发投入与产品和市场紧密结合,高层次人力资源,培养与企业需求相结合。延长热点区域技术、人力资源等生产要素的空间溢出半径,缩小生态经济投入效益冷热点区域之间的失衡;政府要建立规范化的治污投资效益评价体系加强治污投资资金的管理和监督,注重依靠市场化的手段将区域经济发展过程中的外部性内部化,从而推动区域生态经济投入效益水平的不断提升。

关键词：区域生态经济投入效益非期望产出 SBM-DEA超效率模型时空演化

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Nickel Antimony Sulphide Thin Films for Solar Cell Application: Study of Optical Constants

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Natural Science 2016年第2期8卷 33-40页

作者： Saima Mushtaq Bushra Ismail muhammad raheel Aurang Zeb Department of Applied Physics Federal Urdu University of Arts Science and Technology Islamabad Pakistan Department of Chemistry COMSATS Institute of Information Technology Abbottabad Pakistan Department of General Studies Jubail University College Jubail Industrial City KSA

Chemical bath deposition technique has been used to deposit Ni-doped Sb2S3 thin films onto glass substrate. Doping was carried out by adding 1, 3 and 5 wt% of Ni. Bath temperature was kept as 10℃ and films were annealed at 250℃ under vacuum. Polycrystalline nature of films with an orthorhombic phase was analyzed by X-ray diffraction technique. Scanning electron microscopy was used for morphological study which shows that grains are spherical. Optical measurements using transmittance data indicated that films have a direct band gap of 1.00 - 2.60 eV with an absorption coefficient of ~104 cm-1 in visible range. The average value of electrical conductivity was calculated as 1.66, 1.11 and 1.06 (Ω·cm)-1 for as-deposited films and 1.90, 2.08 and 1.15 (Ω·cm)-1 for annealed films while refractive indices were found as 2.18 - 3.38 and 1.91 - 3.74 respectively. The obtained films can be used for solar cell applications due to their good absorbing properties like higher absorption coefficient and refractive index values.

关键词： Ni Doped Optical Constants Sb2S3 Thin Films Chalcogenides Solar Cells

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