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A Porous Nano-Micro-Composite as a High-Performance Bi-Functional Air Electrode with Remarkable Stability for Rechargeable Zinc-Air Batteries

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Nano-Micro Letters 2020年第10期12卷 87-102页

作者： Yasir Arafat Muhammad rizwan Azhar Yijun Zhong Xiaomin Xu Moses OTadé Zongping Shao WA School of Mines:Minerals Energy and Chemical Engineering(WASM‑MECE)Curtin UniversityPerthWA 6845Australia School of Engineering Edith Cowan UniversityPerthWA 6027Australia State Key Laboratory of Materials‑Oriented Chemical Engineering College of Chemical EngineeringNanjing Tech UniversityNanjing 210009JiangsuPeople’s Republic of China

The development of bi-functional electrocatalyst with high catalytic activity and stable performance for both oxygen evolution/reduction reactions(OER/ORR)in aqueous alkaline solution is key to realize practical application of zinc-air batteries(ZABs).In this study,we reported a new porous nano-micro-composite as a bifunctional electrocatalyst for ZABs,devised by the in situ growth of metal-organic framework(MOF)nanocrystals onto the micrometersized Ba0.5Sr0.5Co0.8Fe0.2O3(BSCF)perovskite *** carbonization,MOF was converted to porous nitrogen-doped carbon nanocages and ultrafine cobalt oxides and CoN4 nanoparticles dispersing inside the carbon nanocages,which further anchored on the surface of BSCF *** homogeneously dispersed BSCF perovskite particles in the surfactant;subsequently,ZIF-67 nanocrystals were grown onto the BSCF *** this way,leaching of metallic or organic species in MOFs and the aggregation of BSCF were effectively suppressed,thus maximizing the number of active sites for improving *** BSCF in turn acted as catalyst to promote the graphitization of carbon during pyrolysis,as well as to optimize the transition metal-tocarbon ratio,thus enhancing the ORR catalytic activity.A ZAB fabricated from such air electrode showed outstanding performance with a potential gap of only 0.83 V at 5 mA cm-2 for OER/***,no obvious performance degradation was observed for the continuous charge-discharge operation for 1800 cycles over an extended period of 300 h.

关键词： BSCF perovskites ZIF-67 Porous carbon Zn-air batteries Oxygen evolution reaction Oxygen reduction reaction

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Traffic Priority-Aware Medical Data Dissemination Scheme for IoT Based WBASN Healthcare Applications

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Computers, Materials & Continua 2022年第6期71卷 4443-4456页

作者： Muhammad Anwar Farhan Masud rizwan Aslam Butt Sevia Mahdaliza Idrus Mohammad Nazir Ahmad Mohd Yazid Bajuri Department of Computer Science NFC Institute of Engineering and Fertilizer ResearchFaisalabadPakistan Department of Statistics and Computer Science Faculty of Life Sciences Business ManagementUniversity of Veterinary and Animal SciencesLahorePakistan Department of Electronics Engineering NED University of Engineering and TechnologyKarachiPakistan School of Electrical Engineering Universiti Teknologi MalaysiaJohor BahruMalaysia Institute of IR4.0 Universiti Kebangsaan MalaysiaBangiSelangorMalaysia Department of Orthopedics and Traumatology Faculty of MedicineUniversiti Kebangsaan MalaysiaKuala LumpurMalaysia

Wireless Body Area Sensor Network(WBASN)is an automated system for remote health monitoring of *** under umbrella of Internet of Things(IoT)is comprised of small Biomedical Sensor Nodes(BSNs)that can communicate with each other without human *** BSNs can be placed on human body or inside the skin of the patients to regularly monitor their vital *** BSNs generate critical data as it is related to patient’s *** data traffic can be classified as Sensitive Data(SD)and Non-sensitive Data(ND)packets based on the value of vital *** data packets have different priority to *** ND packets may tolerate some delay or packet loss whereas,the SD packets required to be delivered on time with minimized packet loss otherwise it can be life threating to the *** this research,we propose a Traffic Priority-aware Medical Data Dissemination(TPMD2)scheme forWBASN to deliver the data packets according to their priority based on the sensitivity of the *** assessment of the proposed scheme is carried out in various *** simulation results of the TPMD2 scheme indicate a significant improvement in packets delivery,transmission delay and energy efficiency in comparison with the existing schemes.

关键词： WBANS wearable technology priority routing eHealth applications remote health monitoring

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Resource Management in UAV Enabled MEC Networks

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Computers, Materials & Continua 2023年第3期74卷 4847-4860页

作者： Muhammad Abrar Ziyad M.Almohaimeed Ushna Ajmal rizwan Akram Rooha Masroor Muhammad Majid Hussain Bahauddin Zakariya University Department of Electrical EngineeringMultan60000Pakistan Department of Electrical Engineering College of EngineeringQassim UniversityBuraidah51452Saudi Arabia COMSATS University WAH Campus Islamabad47040Pakistan Department of Electrical and Electronics Engineering University of South WalesPontypirddCF371DLUK

Mobile edge cloud networks can be used to offload computationally intensive tasks from Internet of Things(IoT)devices to nearby mobile edge servers,thereby lowering energy consumption and response time for ground mobile users or IoT *** of Unmanned Aerial Vehicles(UAVs)and the mobile edge computing(MEC)server will significantly benefit small,battery-powered,and energy-constrained devices in 5G and future wireless *** address the problem of maximising computation efficiency in U-MEC networks by optimising the user association and offloading indicator(OI),the computational capacity(CC),the power consumption,the time duration,and the optimal location planning *** is possible to assign some heavy tasks to the UAV for faster processing and small ones to the mobile users(MUs)*** paper utilizes the k-means clustering algorithm,the interior point method,and the conjugate gradient method to iteratively solve the non-convex multi-objective resource allocation *** to simulation results,both local and offloading schemes give optimal solution.

关键词： Mobile edge computing internet of things UAVs ground mobile users

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Machine Learning Empowered Security Management and Quality of Service Provision in SDN-NFV Environment

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Computers, Materials & Continua 2021年第3期66卷 2723-2749页

作者： Shumaila Shahzadi Fahad Ahmad Asma Basharat Madallah Alruwaili Saad Alanazi Mamoona Humayun Muhammad rizwan Shahid Naseem Department of Computer Sciences Kinnaird College for WomenLahore54000Pakistan College of Computer and Information Sciences Jouf UniversitySakaka72341Saudi Arabia Division of Computer Science&Information Technology University of EducationLahore54000Pakistan

With the rising demand for data access,network service providers face the challenge of growing their capital and operating costs while at the same time enhancing network capacity and meeting the increased demand for *** increase efficacy of Software Defined Network(SDN)and Network Function Virtualization(NFV)framework,we need to eradicate network security configuration errors that may create vulnerabilities to affect overall efficiency,reduce network performance,and increase maintenance *** existing frameworks lack in security,and computer systems face few abnormalities,which prompts the need for different recognition and mitigation methods to keep the system in the operational state *** fundamental concept behind SDN-NFV is the encroachment from specific resource execution to the programming-based *** research is around the combination of SDN and NFV for rational decision making to control and monitor traffic in the virtualized *** combination is often seen as an extra burden in terms of resources usage in a heterogeneous network environment,but as well as it provides the solution for critical problems specially regarding massive network traffic *** attacks have been expanding step by step;therefore,it is hard to recognize and protect by conventional *** overcome these issues,there must be an autonomous system to recognize and characterize the network traffic’s abnormal conduct if there is *** four types of assaults,including HTTP Flood,UDP Flood,Smurf Flood,and SiDDoS Flood,are considered in the identified dataset,to optimize the stability of the SDN-NFVenvironment and security management,through several machine learning based characterization techniques like Support Vector Machine(SVM),K-Nearest Neighbors(KNN),Logistic Regression(LR)and Isolation Forest(IF).Python is used for simulation purposes,including several valuable utilities like the mine package,the open-source Python ML libraries Scikit-lea

关键词： Software defined network network function virtualization machine learning support vector machine K-nearest neighbors logistic regression isolation forest anomaly detection attacks

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Appearance Based Dynamic Hand Gesture Recognition Using 3D Separable Convolutional Neural Network

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Computers, Materials & Continua 2023年第7期76卷 1213-1247页

作者： Muhammad rizwan Sana Ul Haq Noor Gul Muhammad Asif Syed Muslim Shah Tariqullah Jan Naveed Ahmad Department of Electronics University of PeshawarPeshawar25120Pakistan Department of Electronics Engineering Korea Polytechnic UniversitySiheungKorea Department of Electrical Engineering Capital University of Science and TechnologyIslamabad44000Pakistan Department of Electrical Engineering University of Engineering and TechnologyPeshawar25120Pakistan Department of Computer Science Prince Sultan UniversityRiyadh11586Saudi Arabia

Appearance-based dynamic Hand Gesture Recognition(HGR)remains a prominent area of research in Human-Computer Interaction(HCI).Numerous environmental and computational constraints limit its real-time *** addition,the performance of a model decreases as the subject’s distance from the camera *** study proposes a 3D separable Convolutional Neural Network(CNN),considering the model’s computa-tional complexity and recognition *** 20BN-Jester dataset was used to train the model for six gesture *** achieving the best offline recognition accuracy of 94.39%,the model was deployed in real-time while considering the subject’s attention,the instant of performing a gesture,and the subject’s distance from the *** being discussed in numerous research articles,the distance factor remains unresolved in real-time deployment,which leads to degraded recognition *** the proposed approach,the distance calculation substantially improves the classification performance by reducing the impact of the subject’s distance from the ***,the capability of feature extraction,degree of relevance,and statistical significance of the proposed model against other state-of-the-art models were validated using t-distributed Stochastic Neighbor Embedding(t-SNE),Mathew’s Correlation Coefficient(MCC),and the McNemar test,*** observed that the proposed model exhibits state-of-the-art outcomes and a comparatively high significance level.

关键词： 3D separable CNN computational complexity hand gesture recognition human-computer interaction

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Identification and Analysis of Gut Microbiota and Functional Metabolism in Decompensated Cirrhosis with Infection

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Journal of Clinical and Translational Hepatology 2023年第1期11卷 15-25页

作者： Cyriac Abby Philips rizwan Ahamed Jinsha K.P.Abduljaleel Sasidharan Rajesh Philip Augustine Clinical and Translational Hepatology Monarch Liver LaboratoryThe Liver InstituteCenter of Excellence in GI SciencesRajagiri HospitalAluvaKeralaIndia Gastroenterology and Advanced GI Endoscopy Center for Excellence in Gastrointestinal SciencesRajagiri HospitalAluvaKeralaIndia Diagnostic and Interventional Gastroenterology and Hepatology Center for Excellence in Gastrointestinal SciencesRajagiri HospitalAluvaKeralaIndia

Background and Aims:Intestinal dysbiosis play a role in the adverse outcomes of sepsis and septic ***,variations in bacterial diversity and microbiota-related functional metabolic alterations within the gut microbiome in decompensated cirrhosis(DC)patients with infection remain ***:We conducted 16-srRNA sequencing on stool samples(n=51:sepsis,27/no sepsis,24)collected from consecutive DC patients upon *** diversity,significant taxa,and respective metabolic profiling were performed based on subgroup ***/Cytoscape was utilized to identify significant non-random patterns of bacterial copresence and mutual exclusion for clinical ***:Genera associated with pathogenicity in conditions of immune exhaustion(Corynebacterium,Lautropia)were predominant in patients with *** pathways associated with oxidative stress and endotoxemia[lipopolysaccharide(LPS)synthesis and sulfur relay]were significantly upregulated in *** taxa were associated with sites of infection in DC *** oxidant pathways that increase glutathione were upregulated in those without *** family of sulfur-metabolizing bacteria,exaggeration of orally predominant pathogens(Prevotella),and pathways of severe LPS-related hyperinflammatory stress were notable in those with interleukin-6 levels>1,000 pg/*** genera related to an immune deficient state was significant in DC with≥2 infection *** was associated with survival during the same ***:Specific gut microbiota and their metabolites were associated with sepsis and related events in patients with *** beneficial strains that reduce immune exhaustion and supplementation of favorable metabolites could improve therapeutics for DC and sepsis,for which larger prospective,well controlled population-based studies remain an unmet need.

关键词： Microbiome Portal hypertension Sepsis Acute-on-chronic liver failure Multidrug resistance

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Incidence of anastomotic stricture after Ivor-Lewis oesophagectomy using a circular stapling device

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World Journal of Gastrointestinal Surgery 2019年第11期11卷 407-413页

作者： Robert Tyler Amit Nair Meagan Lau James Hodson rizwan Mahmood Jan Dmitrewski Department of Upper Gastrointestinal Surgery University Hospitals Birmingham NHS Foundation TrustBirmingham B152THUnited Kingdom Institute of Translational Medicine University Hospitals Birmingham NHS Foundation TrustBirmingham B152THUnited Kingdom Department of Gastroenterology Russells Hall HospitalDudley DY12HQUnited Kingdom

BACKGROUND Benign oesophageal strictures carry a significant level of morbidity,causing burdensome symptoms impacting on quality of ***-oesophagectomy anastomotic stricture rates as high as 41%have been reported in the *** can require endoscopic dilatation,often multiple times to relieve *** aim of the present study was to determine a single surgeons stricture rate in a series of 2-stage Ivor-Lewis procedures,and to identify any independent risk factors in their *** To determine a single surgeons stricture rate in a series of 2-stage Ivor-Lewis procedures,and to identify any independent risk factors in their *** We performed a retrospective analysis of a prospectively collected database of Ivor-Lewis oesophagectomy performed from 2004-2018 to determine the stricture *** database comprised a single-surgeon series of open,two-stage oesophagectomies with a circular stapled intra-thoracic *** location,histology,neoadjuvant chemotherapy,stapler size,T-stage and R-status were analysed to see if they could predict stricture *** was defined as dysphagia requiring endoscopic *** with anastomotic leaks were excluded on the basis they would develop an anastomotic *** One hundred and seventy patients were collected in the *** were excluded on the basis of anastomotic leak,perioperative death and early *** hundred and fifty-four patients(119 males,35 females)with a mean age of 64±10 years were eligible for analysis.A total of 15 patients developed strictures a median of 99 d(interquartile range:84-133)after surgery,giving a Kaplan-Meier estimated stricture rate of 10%at one *** of the factors considered were found to be significantly associated with *** In this study the stricture rate was 10%,with the majority occurring in the first 100 d after *** significant independent factors were found in the deve

关键词： Oesophageal cancer Anastomosis Stricture Stapled Circular

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Enabling Smart Cities with Cognition Based Intelligent Route Decision in Vehicles Empowered with Deep Extreme Learning Machine

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Computers, Materials & Continua 2021年第1期66卷 141-156页

作者： Dildar Hussain Muhammad Adnan Khan Sagheer Abbas rizwan Ali Naqvi Muhammad Faheem Mushtaq Abdur Rehman Afrozah Nadeem School of Computational Sciences Korea Institute for Advanced StudySeoul02455Korea Department of Computer Science Lahore Garrison UniversityLahore54000Pakistan School of Computer Science National College of Business Administration&EconomicsLahore54000Pakistan Department of Unmanned Vehicle Engineering Sejong UniversitySeoul05006Korea Department of Information Technology Khwaja Fareed University of Engineering and Information TechnologyRahim Yar Khan64200Pakistan

The fast-paced growth of artificial intelligence provides unparalleled opportunities to improve the efficiency of various industries,including the transportation *** worldwide transport departments face many obstacles following the implementation and integration of different vehicle *** of these tasks is to ensure that vehicles are autonomous,intelligent and able to grow their repository of *** learning has recently been implemented in wireless networks,as a major artificial intelligence branch,to solve historically challenging problems through a data-driven *** this article,we discuss recent progress of applying machine learning into vehicle networks for intelligent route decision and try to focus on this emerging *** Extreme Learning Machine(DELM)framework is introduced in this article to be incorporated in vehicles so they can take human-like *** present GPS compatibility issues make it difficult for vehicles to take real-time decisions under certain *** leads to the concept of vehicle controller making *** proposed DELM based system for self-intelligent vehicle decision makes use of the cognitive memory to store route *** overcomes inadequacy of the current in-vehicle route-finding technology and its *** the relevant route-related information for the ride will be provided to the user based on its *** the DELM method,a high degree of precision in smart decision taking with a minimal error rate is *** investigation,it has been observed that proposed framework has the highest accuracy rate with 70%of training(1435 samples)and 30%of validation(612 samples).Simulation results validate the intelligent prediction of the proposed method with 98.88%,98.2%accuracy during training and validation respectively.

关键词： DELM ANN IoT feedforward route decision prediction smart city

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Characteristic features of Super Cyclone ‘AMPHAN’-observed through satellite images

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Tropical Cyclone Research and Review 2021年第1期10卷 16-31页

作者： rizwan Ahmed M.Mohapatra Suneet Dwivedi Ram Kumar Giri India Meteorological Department Ministry of Earth SciencesNew DelhiIndia K Banerjee Centre of Atmospheric&Oceanic Studies(KBCAOS) University of Allahabad-AllahabadIndia

Characteristic features of Super Cyclonic Storm(Su CS),AMPHAN which crossed West Bengal-Bangladesh Coast on May 20,2020 have been analyzed based on INSAT-3 D&passive microwave(PMW)images with special emphasis on eye characteristics and its relationship with *** satellite images/products are analyzed to determine the centre of the cyclone,its intensity and the characteristics of the eye of the *** shows the characteristic variation of intensity of Su CS with geometric and thermal characteristics of the‘eye’.Precise changes in the eye features of the cyclone can be used for very short-range forecasting of the intensity of the cyclone.

关键词： Tropical cyclone Intensification Bay of Bengal Eye

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Supportive tactics for innovative and sustainability performance in emerging SMEs

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Financial Innovation 2021年第1期7卷 1824-1854页

作者： Farid Ullah Ma Degong Muhammad Anwar Saddam Hussain rizwan Ullah School of Economics Sichuan UniversityChengduChina Department of Economics ROKHAN Institute of Higher EducationJalalabadAfghanistan Head of Financial Engineering Department School of EconomicsSichuan UniversityChengduChina Witten Institute for Family Business Witten/Herdecke UniversityWittenGermany Institute of Management Studies University of PeshawarPeshawarPakistan Capital University of Science and Technology IslamabadPakistan

For this research,we examined the influence of access to domestic and international financing on sustainability performance with a mediating role of innovative performance and a moderating role of access to government *** were collected from 317 small and medium-sized enterprises(SMEs)through structured *** results indicated that access to domestic and international financing significantly contributes to sustainability and innovative ***,we found a partial mediating role of innovative performance between access to domestic financing and sustainability performance as well as between access to international financing and sustainability *** to government support significantly moderates the relationship between access to domestic finances and innovative performance as well as between access to international finances and innovative *** and policymakers should encourage national and international financial institutions and banks to facilitate SMEs by lending them funds for innovative activities and sustainability ***,the government should support SMEs,so that they can contribute to economic growth and the gross domestic *** implications from these matters will be further discussed in this paper.

关键词： Domestic finance Government support International finance Foreign direct investment Innovative performance Sustainability SMEs

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