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Information Availability: An Insight into the most Important Attribute of Information Security

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Journal of Information Security 2016年第3期7卷 185-194页

作者： suhail Qadir S. m. k. Quadri Department of Computer Sciences University of Kashmir Srinagar India

This paper presents an in-depth understanding of Availability, which is one of the important pillars of Information Security and yet is not taken too seriously while talking about the security of an information system. The paper highlights the importance of Availability w.r.t. Security of information and the other attributes of security and also gives a realistic shape to the existing CIA triad security model. An in-depth understanding of the various factors that can impact the Availability of an information system (Software, Hardware and Network) is given. The paper also gives a categorization of the type of Availability that a system can have. The paper also explains the relation between Availability and other security attributes and also explains through what issues an information system may go while providing Availability.

关键词： Information Security Availability Confidentaility Integrity Information System CIA Triad

Physical and geometrical parameters of VCBS XIII: HIP 105947

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Research in Astronomy and Astrophysics 2018年第6期18卷 109-120页

作者： suhail Gumaan masda mashhoor Ahmed Al-Wardat Jiyaulla khan moula khan Pathan Physics Department Dr. Babasaheb Ambedkar Marathwada University Aurangabad-431001 Maharashtra India Physics Department Hadhramout University PO Box 50511 Mukalla Yemen Dept. of Physics and Institute of Astronomy and Space Sciences A1 al-Bayt University PO Box 130040 Mafraq25113 Jordan Physics Department Maulana Azad College Aurangabad-431001 Maharashtra India

The best physical and geometrical parameters of the main sequence close visual binary system(CVBS), HIP 105947, are presented. These parameters have been constructed conclusively using Al-Wardat’s complex method for analyzing CVBSs, which is a method for constructing a synthetic spectral energy distribution(SED) for the entire binary system using individual SEDs for each component star. The model atmospheres are in its turn built using the kurucz(ATLAS9) line-blanketed plane-parallel models. At the same time, the orbital parameters for the system are calculated using Tokovinin’s dynamical method for constructing the best orbits of an interferometric binary system. moreover, the mass-sum of the components, as well as the ?θ and ?ρ residuals for the system, is introduced. The combination of Al-Wardat’s and Tokovinin’s methods yields the best estimations of the physical and geometrical parameters. The positions of the components in the system on the evolutionary tracks and isochrones are plotted and the formation and evolution of the system are discussed.

关键词： binaries: close binaries: visual stars: fundamental parameters stars: individual(HIP 105947)

A novel hybrid cybersecurity scheme against false data injection attacks in automated power systems

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Protection and Control of modern Power Systems 2023年第3期8卷 1-15页

作者： Shahbaz Hussain S.m.suhail Hussain marziyeh Hemmati Atif Iqbal Rashid Alammari Stefano Zanero Enrico Ragaini Giambattista Gruosso Department of Electrical Engineering Qatar UniversityDohaQatar Dipartimento di Elettronica Informazione e BioingegneriaPolitecnico di MilanoMilanItaly Department of Electrical Engineering King Fahd University of Petroleum and Minerals(KFUPM)DhahranSaudi Arabia Interdisciplinary Research Center for Renewable Energy and Power Systems(IRC-REPS) King Fahd University of Petroleum and Minerals(KFUPM)DhahranSaudi Arabia

The conventional power systems are evolving as smart *** recent times cyberattacks on smart grids have been *** different attacks,False Data Injection(FDI)is considered as an emerging threat that has significant *** exploiting the vulnerabilities of IEC 61850 Generic Object-Oriented Substation Events(GOOSE)and Sam-pled Values(SV)attackers can launch different FDI *** this paper,a real-time set up capable of simulating FDI on GOOSE and SV protocols is developed to evaluate the impact of such attacks on power *** 62351 stipulates cybersecurity guidelines for GOOSE and SV,but only at communication or Information Technology(IT)*** there is a need to develop a holistic security both at IT and Operation Technology(OT)*** this regard,a novel sequence content resolver-based hybrid security scheme suitable to tackle FDI attacks on GOOSE and SV is ***,the computational performance of the proposed hybrid security scheme is presented to demonstrate its applicability to the time critical GOOSE and SV protocols.

关键词： Cyberattacks False data injection Real time digital simulation IEC 61850 Communication protocols Control authority Countermeasures

Classification of kantowski-Sachs and Bianchi Type Ⅲ Space-Times According to Their killing Vector Fields in Teleparallel Theory of Gravitation

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Communications in Theoretical Physics 2010年第9期 469-472页

作者： Ghulam Shabbir suhail khan Faculty of Engineering Sciences GIK Institute of Engineering Sciences and Technology

In this paper we classify kantowski-Sachs and Bianchi type Ⅲ space-times according to their teleparallel killing vector fields using direct integration technique. It turns out that the dimension of the telepaxallel killing vector fields are 4 or 6, which are the same in numbers as in general relativity. In case of 4 the teleparallel killing vector fields are multiple of the corresponding killing vector fields in general relativity by some function of t. In the case of 6 killing vector fields the metric functions become constants and the killing vector fields in this case are exactly the same as in general relativity. Here we also discuss the Lie algebra in each case.

关键词： teleparallel killing vector fields Weitzenb5ck connections torsion

The medial plantar artery:anatomy and implications in local flaps of the foot

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Plastic and Aesthetic Research 2023年第1期10卷 147-154页

作者： suhail B.masadeh michael D.Liette Cincinnati VA medical Center Department of SurgeryCincinnatiOH 45220USA University of Cincinnati Department of OrthopedicsCincinnatiOH 45208USA

The medial plantar artery(mPA),as a terminal branch of the posterior tibial artery,provides perfusion to the musculature of the medial compartment of the plantar foot as well as cutaneous branches to the *** artery and its perforators serve as the foundation for several flaps based on various soft tissue components for the coverage of small defects of the *** noteworthy is the fasciocutaneous flap,which utilizes the skin and the unique properties of the plantar *** the anatomical relationship of the terminal branches of the mPA,the superficial and deep branches,is necessary in determining the type of tissue and the flap design to be utilized for reconstruction.

关键词： medial plantar artery abductor hallucis fasciocutaneous flap flexor hallucis brevis

Deep Reinforcement Learning Based Unmanned Aerial Vehicle (UAV) Control Using 3D Hand Gestures

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Computers, materials & Continua 2022年第9期72卷 5741-5759页

作者： Fawad Salam khan mohd Norzali Haji mohd Saiful Azrin B.m.Zulkifli Ghulam E mustafa Abro suhail kazi Dur muhammad Soomro Faculty of Electrical and Electronics(FkEE) Universiti Tun Hussein Onn MalaysiaParit Raja81756Malaysia Department of Electrical&Electronic Engineering Universiti Teknologi PETRONASSeri Iskandar32610Malaysia Faculty of Engineering Science and Technology Isra UniversityHyderabad71000Pakistan Department of Innovation CONVSYS(Pvt)Ltd.44000IslamabadPakistan

The evident change in the design of the autopilot system produced massive help for the aviation industry and it required frequent *** learning delivers appropriate outcomes when considering a continuous environment where the controlling Unmanned Aerial Vehicle(UAV)required maximum *** this paper,we designed a hybrid framework,which is based on Reinforcement Learning and Deep Learning where the traditional electronic flight controller is replaced by using 3D hand *** algorithm is designed to take the input from 3D hand gestures and integrate with the Deep Deterministic Policy Gradient(DDPG)to receive the best reward and take actions according to 3D hand gestures *** UAV consist of a Jetson Nano embedded testbed,Global Positioning System(GPS)sensor module,and Intel depth *** collision avoidance system based on the polar mask segmentation technique detects the obstacles and decides the best path according to the designed reward *** analysis of the results has been observed providing best accuracy and computational time using novel design framework when compared with traditional Proportional Integral Derivatives(PID)flight *** are six reward functions estimated for 2500,5000,7500,and 10000 episodes of training,which have been normalized between 0 to−*** best observation has been captured on 2500 episodes where the rewards are calculated for maximum *** achieved training accuracy of polar mask segmentation for collision avoidance is 86.36%.

关键词： Deep reinforcement learning UAV 3D hand gestures obstacle detection polar mask

A note on teleparallel killing vector fields in Bianchi type Ⅷ and Ⅸ space-times in teleparallel theory of gravitation

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Chinese Physics B 2011年第7期20卷 88-93页

作者： Ghulam Shabbir Amjad Ali suhail khan Faculty of Engineering Sciences GIK Institute of Engineering Sciences and TechnologyTopiSwabiKhyber PukhtoonkhwaPakistan Department of Basic Sciences University of Engineering and TechnologyPeshawarKhyber PukhtoonkhwaPakistan

In this paper we classify Bianchi type Ⅷ and IX space-times according to their teleparallel killing vector fields in the teleparallel theory of gravitation by using a direct integration technique. It turns out that the dimensions of the teleparallel killing vector fields are either 4 or 5. From the above study we have shown that the killing vector fields for Bianchi type Ⅷ and Ⅸ space-times in the context of teleparallel theory are different from that in general relativity.

关键词： WeitzenbSck geometry teleparallel theory of gravitation conservation laws

Two Photon Absorption in Nanostructure Wide Band Gap Semiconductor CdS Using Femtosecond Laser

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Advances in materials Physics and Chemistry 2011年第3期1卷 64-69页

作者： Abdulla m. suhail Raied k. Jamal Hani J. kbashi 不详

Strong nonlinear absorption in CdS nanoparticles of dimensions in the range 4 - 50 nm when irradiated with a femtosecond pulsed laser at 800 nm is observed. The CdS nanoparticles sizes were controlled by changing the reaction time of aqueous solutions of thiourea and cadmium chloride. The structure of the prepared CdS nanoparticles were tested and their optical properties were investigated and the nonlinear absorption coeffi-cients were measured using a fully computerized z-scan unit. It is found that the formation of the CdS nanos-tructuresfor are responsible for the observation of the strong tow photon absorption.

关键词： Cadmium Sulfide Nanostructure multiphoton Absorption

Three-Photon Absorption in Zno Film Using Ultra Short Pulse Laser

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Journal of modern Physics 2012年第8期3卷 856-864页

作者： Raied k. Jamal mohammed T. Hussein Abdulla m. suhail Department of physics College of science University of Baghdad Baghdad Iraq

The three-photon absorption (3PA) in nanostructure wide-band gap ZnO semiconductor material is observed under high intensity femtosecond Titanium-Sapphire laser of 800 nm wavelength excitation. The ZnO film was prepared by chemical spray pyrolysis technique with substrate temperature of 400℃. The optical properties concerning the absorp-tion, transmission, reflection, Raman and the photoluminescence spectra are studied for the prepared film. The structure of the ZnO film was tested with the X-Ray diffraction and it was found to be a polycrystalline with recognized peaks oriented in (002), and (102). The measured of three photon absorption coefficient was found to be about 0.0166 cm3/Gwatt2, which is about five times higher than the bulk value. The fully computerized z-scan system was used to measure the nonlinear coefficients from the Gaussian fit of the transmitted laser incident.

关键词： multiphoton Processes ZnO Nanocrystalline Nonlinear Optics