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A Novel Approach of Image Steganography for Secure

Computers, Materials & Continua 2020年第7期64卷 31-61页

作者： Shahid Rahman fahad masood Wajid Ullah Khan Niamat Ullah Fazal Qudus Khan Georgios Tsaramirsis Sadeeq Jan Majid Ashraf University of Buner Buner19290Pakistan Abasyn University Peshawar25000Pakistan Department of Information Technology Faculty of Computing and Information TechnologyKing Abdulaziz UniversityJeddah21577Saudi Arabia National Center for Cyber Security-UETP Department of CS&ITUniversity of Engineering&TechnologyPeshawar25000Pakistan Department of Electrical Engineering University of Engineering&TechnologyPeshawar25000Pakistan

Steganography aims to hide the messages from unauthorized persons for various purposes,e.g.,military correspondence,financial transaction *** the data during transmission is of utmost importance these *** confidentiality,integrity,and availability of the data are at risk because of the emerging technologies and complexity in software applications,and therefore,there is a need to secure such systems and *** are various methodologies to deal with security issues when utilizing an open system like the *** research proposes a new technique in steganography within RGB shading space to achieve enhanced security compared with existing *** evaluate our approach with the help of diverse image quality evaluation techniques including MSE(Mean Square Error),RMSE(Root Mean Square Error),PSNR(Peak Signal-to-Noise Ratio),MAE(Mean Absolute Error),NCC(Normalized Cross-Correlation)and SSIM(Structural Similarity Index).Our experimental results demonstrate improved strength,intangibility,and security when contrasted with existing techniques and vindicate the effectiveness of this exploration *** proposed approach achieved a 3.6701%average higher score for PSNR Correlation than the next best existing ***,in PSNR with a variable amount of cipher embedded in the same images of the same dimensions,the proposed approach attained a 5.22%better *** the same size of cipher in images of different size resulted a 3.56%better score.

关键词： Image steganography least significant bits MLEA and RGB color space

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Integrity Assessment of Medical Devices for Improving Hospital Services

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Computers, Materials & Continua 2021年第6期67卷 3619-3633页

作者： fahad A.Alzahrani masood Ahmad Mohd Nadeem Rajeev Kumar Raees Ahmad Khan Department of Computer Engineering Umm Al-Qura UniversityMecca24381Saudi Arabia Department of Information Technology Babasaheb Bhimrao Ambedkar UniversityLucknow226025Uttar PradeshIndia Department of Computer Application Shri Ramswaroop Memorial UniversityBarabanki225003Uttar PradeshIndia

The present study examines the various techniques being used to maintain the integrity of the medical devices,and develops a quantitative framework to list these in the sequence of *** achieve the intended objective,the study employs the combined procedure of Fuzzy Analytic Network Process(ANP)and Fuzzy Technical for Order Preference by Similarities to Ideal Solution(TOPSIS).We selected fuzzy based decision making techniques for assessing the integrity of medical *** suggested methodology was then used for classifying the suitable techniques used to evaluate the integrity of medical *** techniques or the procedures of integrity assessment were ranked according to their satisfaction *** rating of the options determined the order of priority for the *** per the findings of the study,among all the options,A1 was assessed to be the most likely *** means that the integrity of medical devices of A2 is the highest amongst all the chosen *** analysis will be a corroborative guideline for manufacturers and developers to quantitatively test the integrity of medical devices in order to engineer efficacious *** evaluations undertaken with the assistance of the planned procedure are accurate and *** instead of conducting a manual valuation,this experimental study is a better and reliable option for assessing the integrity of the medical devices.

关键词： Integrity of the medical devices fuzzy-ANP.TOPSIS security assessment

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Potential Solution of Power Flow Constraints of Bangladesh Power System

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Journal of Energy and Power Engineering 2012年第8期6卷 1315-1319页

作者： Nahid-Al-masood Samsuzzaman Rupu Shaikh Mostafa fahad Khalid Imtiaz Saad Md. Quamrul Ahsan Department of Electrical and Electronic Engineering Bangladesh University of Engineering and Technology Dhaka 1000Bangladesh

This paper presents a potential solution of power flow constraints of BPS （Bangladesh power system） using VAR （volt ampere reactive） compensation. VAR compensation is defined as the management of reactive power to improve the performance ofac power systems. The concept of VAR compensation embraces a wide and diverse field of both system and customer problems, especially related with power quality issues, since most of power quality problems can be attenuated or solved with an adequate control of reactive power. VAR compensation in transmission systems also improves the stability of the ac system by increasing the maximum active power that can be transmitted. It also helps to maintain a substantially fiat voltage profile at all levels of power transmission. BPS is currently facing problems in few 132 grid points where the thermal limits of transmission are often exceeded. BPS is also foreseeing problem in transmitting additional power from the new generating units in Sylhet to Dhaka zone. This paper investigates the potential solution to these transmission problems.

关键词： FACTS devices thermal limit VAR compensation power transfer overloading problem.

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