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Edge-Computing with Graph Computation:A Novel Mechanism to Handle Network Intrusion and Address Spoofing in SDN

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Computers, Materials & Continua 2020年第12期65卷 1869-1890页

作者： Rashid Amin Mudassar Hussain Mohammed Alhameed syed Mohsan Raza Fathe Jeribi ali Tahir University of Engineering and Technology TaxilaPakistan University of Wah Wah CanttPakistan Jazan University JazanSaudi Arabia Abasyn University Islamabad IslamabadPakistan

Software Defined Networking(SDN)being an emerging network control model is widely recognized as a control and management *** model provides efficient techniques to control and manage the enterprise *** emerging paradigm is edge computing in which data processing is performed at the edges of the network instead of a central *** data processing at the edge nodes reduces the latency and bandwidth *** SDN,the controller is a single point of *** security issues related to the traditional network can be solved by using SDN central management and *** Spoofing and Network Intrusion are the most common *** attacks severely degrade performance and *** propose an edge computing-based mechanism that automatically detects and mitigates those *** this mechanism,an edge system gets the network topology from the controller and the Address Resolution Protocol(ARP)traffic is directed to it for further *** such,the controller is saved from unnecessary processing related to addressing *** propose a graph computation based method to identify the location of an attacker or intruder by implementing a graph difference *** using the correct location information,the exact attacker or intruder is blocked,while the legitimate users get access to the network *** proposed mechanism is evaluated in a Mininet simulator and a POX *** results show that it improves system performance in terms of attack mitigation time,attack detection time,and bandwidth requirements.

关键词： Software Defined Networking(SDN) edge computing Address Resolution Protocol(ARP) ARP inspection security graph difference

Angular velocity dynamics identification of small unmanned helicopter using fuzzy model

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Journal of beijing Institute of Technology 2014年第4期23卷 527-533页

作者： KHIZER Arbab Nighat 戴亚平 syed Amjad ali 许向阳 School of Automation Beijing Institute of Technology Mehran University of Engineering and Technology JamshoroSindhPakistan School of Mechatronics Beijing Institute of Technology

Attitude identification method for unmanned helicopter based on fuzzy model at hovering is presented. The dynamical attitude model is considered as basis for attitude control and it is very complex. To reduce the complexity of model, nonlinear model of unmanned helicopter with unknown parameters are to be determined by fuzzy system first and then derivative based gradient method is used to identify unknown parameters of model. Gradient method is used due to ability that fuzzy system is not necessarily to be linear in parameters, therefore all fuzzy sets for input and output can be adjusted. The validity of the proposed model was verified using experimental data obtained by the commercially available flight simulator X-Plane. The simulation results showed high accuracy of the modeling method and attitude dynamics data matched well with experimental data.

关键词： small unmanned helicopter ( SUH ) identification Takagi-Sugeno ( TS ) fuzzy model attitude model gradient method

Thickness-dependent monochalcogenide GeSe-based CbRAM for memory and artificial electronic synapses

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Nano Research 2022年第3期15卷 2263-2277页

作者： Asif ali Haider Abbas Muhammad Hussain syed Hassan Abbas Jaffery Sajjad Hussain Changhwan Choi Jongwan Jung HMC(Hybrid Materials Center)and Department of Nanotechnology and Advanced Materials Engineering Sejong UniversitySeoul 143–747Republic of Korea Division of Materials Science and Engineering Hanyang UniversitySeoul 04763Republic of Korea

Investigating the promising chalcogenide materials for the development of memory and advanced neuromorphic computing applications is a critical step in realizing electronic memory and synaptic devices that can efficiently emulate biological synaptic ***,the assessment of monochalcogenide materials for the fabrication of highly scalable memory and electronic synaptic devices that can accurately mimic synaptic functions remain *** the present study,we investigated the thickness-dependent resistive switching(RS)behavior of conductive bridge random access memory(CbRAM)based on a monochalcogenide GeSe switching medium for its possible application in high-performance memory and electronic *** thin films of different thicknesses(6,13,24,35,47,and 56 nm)were deposited via sputtering to fabricate CbRAM devices with a stacking sequence of Ag/GeSe/Pt/Ti/SiO_(2).The devices exhibited compliance current(CC)-free and electroforming-free RS with highly stable endurance and retention characteristics with no major *** devices with a thickness of 6 nm had a low-resistance state(LRS),which required an initial reset to ensure reliable switching *** devices with a thickness of 47 nm and above exhibited the co-existence of unipolar resistive switching(U-RS)and bipolar resistive switching(b-RS)with the CC-controlled transition between the two switching *** resistance states in the 24-nm device between a high-resistance state(HRS)and an LRS were achieved by controlling the set-CC(from 5 mA to CC-free)and the reset stop voltage(from–0.5 to–1.0 V)during the set and reset processes,*** analog RS behavior of the device was further investigated with appropriate pulse measurements to emulate vital synaptic functions,including long-term potentiation(LTP),long-term depression(LTD),spike-rate-dependent plasticity(SRDP),spike-timing-dependent plasticity(STDP),paired-pulse facilitation(PPF),paired-pulse depression(PPD)and

关键词： conductive bridge random access memory(CbRAM) resistive memory switching monochalcogenide material bipolar and unipolar resistive switching multilevel resistive switching electronic synapses

On the Constant Metric Dimension of Generalized Petersen Graphs P(n,4)

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Acta Mathematica Sinica,English Series 2014年第7期30卷 1145-1160页

作者： Saba NAZ Muhammad SALMAN Usman ali Imran JAVAID syed Ahtsham-ul-Haq bOKHARY Center for Advanced Studies in Pure and Applied Mathematics Bahauddin Zakariya University

In this paper, we consider the family of generalized Petersen graphs P（n,4）. We prove that the metric dimension of P（n, 4） is 3 when n = 0 （mod 4）, and is 4 when n = 4k ＋ 3 （k is even）.For n = 1,2 （mod 4） and n = 4k ＋ 3 （k is odd）, we prove that the metric dimension of P（n,4） is bounded above by 4. This shows that each graph of the family of generalized Petersen graphs P（n, 4） has constant metric dimension.

关键词： Metric dimension constant metric dimension generalized Petersen graphs

Hard exudates referral system in eye fundus utilizing speeded up robust features

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International Journal of Ophthalmology(English edition) 2017年第7期10卷 1171-1174页

作者： syed ali Gohar Naqvi Hafiz Muhammad Faisal Zafar Ihsanul Haq International Islamic University (IIUI)

In the paper a referral system to assist the medical experts in the screening/referral of diabetic retinopathy is suggested. The system has been developed by a sequential use of different existing mathematical techniques. These techniques involve speeded up robust features（SURF）, K-means clustering and visual dictionaries（VD）. Three databases are mixed to test the working of the system when the sources are dissimilar. When experiments were performed an area under the curve（AUC） of 0.9343 was attained. The results acquired from the system are promising.

关键词： referral system speeded up robust features eye fundus visual dictionaries

Process Mining Discovery Techniques for Software Architecture Lightweight Evaluation Framework

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Computers, Materials & Continua 2023年第3期74卷 5777-5797页

作者： Mahdi Sahlabadi Ravie Chandren Muniyandi Zarina Shukur Faizan Qamar syed Hussain ali Kazmi Centre for Cyber Security Faculty of Information Science and Technology(FTSM)Universiti Kebangsaan Malaysia(UKM)Bangi43600SelangorMalaysia

This research recognizes the limitation and challenges of adaptingand applying Process Mining as a powerful tool and technique in theHypothetical Software Architecture (SA) Evaluation Framework with thefeatures and factors of lightweightness. Process mining deals with the largescalecomplexity of security and performance analysis, which are the goalsof SA evaluation frameworks. As a result of these conjectures, all ProcessMining researches in the realm of SA are thoroughly reviewed, and ninechallenges for Process Mining Adaption are recognized. Process mining isembedded in the framework and to boost the quality of the SA model forfurther analysis, the framework nominates architectural discovery algorithmsFlower, Alpha, Integer Linear Programming (ILP), Heuristic, and Inductiveand compares them vs. twelve quality criteria. Finally, the framework’s testingon three case studies approves the feasibility of applying process mining toarchitectural evaluation. The extraction of the SA model is also done by thebest model discovery algorithm, which is selected by intensive benchmarkingin this research. This research presents case studies of SA in service-oriented,Pipe and Filter, and component-based styles, modeled and simulated byHierarchical Colored Petri Net techniques based on the cases’ *** this framework dealswith the system’s log files obtainedfrom SA simulation. Applying process mining is challenging, especially for aSA evaluation framework, as it has not been done yet. The research recognizesthe problems of process mining adaption to a hypothetical lightweightSA evaluation framework and addresses these problems during the solutiondevelopment.

关键词： Software architecture process mining hierarchical colored petri Net architectural discovery algorithms model discovery algorithm

Circular neighbor-balanced designs using cyclic shifts

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Science China Mathematics 2009年第10期52卷 2243-2256页

作者： IQbAL Ijaz TAHIR M. H. GHAZali syed Shakir ali Department of Statistics Bahauddin Zakariya University Department of Statistics The Islamia University of Bahawalpur

In agriculture experiments, the response on a given plot may be affected by the treatments on neighboring plots as well as by the treatments applied to that plot. In this paper we consider such type of situations and construct circular neighbor-balanced designs (CNbDs) by the method of cyclic shifts or sets of shifts. An important feature of this method is that the properties of a design can be easily obtained from the sets of shifts instead of constructing the actual blocks of the design. That is, the off-diagonal elements of the concurrence matrix can be easily obtained from the sets of shifts. Since the suggested designs are circular, balanced and binary, so they are universally optimal.

关键词： A-optimal circular designs cyclic shifts treatment-balanced designs universally optimal 05b05 62K05 62K10

Polymer-free electrospun separator film comprising silica nanofibers and alumina nanoparticles for Li-ion full cell

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Journal of Energy Chemistry 2020年第3期29卷 217-226页

作者： syed Danish ali Zaidi Chong Wanga Qinjun Shao Jing Gao Shengdong Zhu Haifeng Yuan Jian Chen Advanced Rechargeable batteries Laboratory Dalian Institute of Chemical PhysicsChinese Academy of Sciences457 Zhongshan RoadDalian 116023LiaoningChina University of Chinese Academy of Science Beijing 100039China

A separator film for high-performance Li-ion batteries was prepared by electrospinning. The film had a hybrid morphology of silica nanofibers(SNFs) and alumina nanoparticles(ANPs), with a smooth surface, polymer-free composition, high porosity(79%), high electrolyte uptake(876%), and excellent thermal stability. Contact angle measurements demonstrated the better immersion capability of the SNF-ANP separator film for commercial liquid electrolytes than a commercial CELGARD 2500 separator film. Moreover,compared to the commercial CELGARD 2500 separator, the ionic conductivity of the SNF-ANP separator film was nearly three times higher, the bulk resistance was lower at elevated temperature(120 ℃), the interfacial resistance with lithium metal was lower, and the electrochemical window was wider. Full cells were fabricated to determine the cell performance at room temperature. The specific capacity of the full cell with the SNF-ANP separator film was 165 mAh g-1;the cell was stable for 100 charge/discharge cycles and exhibited a capacity retention of 99.9%. Notably, the electrospun SNF-ANP separator film can be safely used in Li-ion or Li-S rechargeable batteries.

关键词： Electrospun nanofiber Hybrid materials Separator film Silica nanofiber Li-ion batteries

Overview of the aeroponic agriculture-An emerging technology for global food security

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International Journal of Agricultural and biological Engineering 2020年第1期13卷 1-10页

作者： Imran ali Lakhiar Jianmin Gao Tabinda Naz syed Farman ali Chandio Mazhar Hussain Tunio Fiaz Ahmad Kashif ali Solangi School of Agricultural Equipment Engineering Jiangsu UniversityZhenjiang 212013JiangsuChina

Traditionally,crops are cultivated in soil-based open field ***,environmental degradation,urbanization,and food security issues have replaced open-field systems with modern plant production *** culture is one of the modern plant production systems,which involves much higher use of available *** presented study provides information about currently accessible soilless systems and discussed the aeroponic *** to other soilless systems,aeroponic reduce water usage through continuous water ***,the aeroponic is not entirely implemented among local farmers,and very few farmers have adopted the system due to the lack of research and technical information available in the ***,this study was planned to provide information about the development and maintenance tasks required for practicing the aeroponic *** study could provide knowledge to the researchers,farmers,and those people interested in practicing the aeroponic system.

关键词： aeroponic food security hydroponic soilless culture substrate culture