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Voxelated opto-physically unclonable functions via irreplicable wrinkles

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Light(Science & Applications) 2023年第11期12卷 2378-2390页

作者： Kitae Kim Se-Um Kim Moon-Young Choi mohsin Hassan saeed Youngmin Kim Jun-Hee Na Department of Convergence System Engineering Chungnam National University99 Daehak-roYuseong-guDaejeon 34134Republic of Korea Department of Electrical and Information Engineering Seoul National University of Science&Technology232 Gongneung-roNowon-guSeoul 01811Republic of Korea Department of Electrical Electronicsand Communication Engineering EducationChungnam National University99 Daehak-roYuseong-guDaejeon 34134Republic of Korea Hologram Research Center Korea Electronics Technology InstituteWorld Cup buk-ro 54-gilMapo-guSeoul 03924Republic of Korea

The increased prevalence of the Internet of Things(IoT)and the integration of digital technology into our daily lives have given rise to heightened security risks and the need for more robust security *** response to these challenges,physical unclonable functions(PUFs)have emerged as promising solution,offering a highly secure method to generate unpredictable and unique random digital values by leveraging inherent physical ***,traditional PUFs implementations often require complex hardware and circuitry,which can add to the cost and complexity of the *** present a novel approach using a random wrinkles PUF(rw-PUF)based on an optically anisotropic,facile,simple,and cost-effective *** wrinkles contain randomly oriented liquid crystal molecules,resulting in a two-dimensional retardation map corresponding to a complex birefringence ***,our proposed technique allows for customization based on specific requirements using a spatial light modulator,enabling fast *** random wrinkles PUF has the capability to store multiple data sets within a single PUF without the need for physical ***,we introduce a concept called‘polyhedron authentication,’which utilizes three-dimensional information storage in a voxelated random wrinkles *** approach demonstrates the feasibility of implementing high-level security technology by leveraging the unique properties of the rw-PUF.

关键词： hardware functions utilize

A Novel Approach for Developing An Efficient Boost Converter by Using Coupled Inductors for PV System

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A Novel Approach for Developing An Efficient Boost Converter...

作者： mohsin saeed 广西大学

学位级别：硕士

For step-up applications,a conventional boost dc-dc converter is normally ***,its voltage gain is not enough for high-step-up *** obtain high-voltage gain,many solutions have been *** the simplest methods,the boost converter can be cascaded or stacked up on the other step-up ***,the cascade structure requires a lot of components as numerous as the count of the stages,which brings on low efficiency,complex circuit,and high ***,it is commonly integrated as a single-switch converter by sharing the main switch in order to reduce component count and circuit ***,the conduction loss and switching loss is increased because each stage of the inductor current flows in one common ***,the sort switching is needed to improve the power *** are several high-step-up stacked boost *** stacked-up structure is generally that both dc-dc converters are connected up in parallel by the coupled inductor to obtain high-voltage *** the output capacitor is connected in series,the voltage balance of the output capacitors should be *** there efficiency is not much high and also have some disadvantage so a new approach has been done in this thesis to overcome previous *** thesis focuses on the new approach to develop an efficient Boost Converter by using coupled *** order to eliminate voltage spikes,a buffer circuit is used in the *** coils generate leakage flux,and energy in the leakage flux causes voltage *** a high boost ratio,the active switches in the converter can maintain the proper duty cycle,which can significantly reduce voltage and current *** the main switch and the auxiliary switch can be turned on by the zero voltage switching,the switching loss is reduced,and the conversion efficiency is significantly *** this paper,an experiment was conducted by building a 200W boost converter *** results show th

关键词： Low-input-voltage Boost Converter Coupled Inductor Photovoltaic System

Recent progress in two-dimensional metallenes and their potential application as electrocatalyst

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Journal of Energy Chemistry 2024年第7期94卷 577-598页

作者： Umer Shahzad mohsin saeed Muhammad Fazle Rabbee Hadi M.Marwani Jehan Y.Al-Humaidi Muhammad Altaf Raed H.Althomali Kwang-Hyun Baek Md.Rabiul Awual Mohammed M.Rahman Department of Chemistry Faculty of ScienceKing Abdulaziz UniversityJeddah 21589Saudi Arabia Department of Biotechnology Yeungnam UniversityGyeongsanSouth Korea Center of Excellence for Advanced Materials Research(CEAMR) King Abdulaziz UniversityJeddah 21589Saudi Arabia Department of Chemistry College of SciencePrincess Nourah Bint Abdulrahman UniversityP.O.BOX 84428Riyadh 11671Saudi Arabia Department of Chemistry Center of Excellence for Innovation in Chemistry(PERCH-CIC)Center of Excellence in Materials Science and TechnologyFaculty of ScienceChiang Mai UniversityChiang Mai 50200Thailand Department of Chemistry College of Art and SciencePrince Sattam Bin Abdulaziz UniversityWadi Al-Dawasir 11991Saudi Arabia Western Australian School of Mines:Minerals Energy and Chemical EngineeringCurtin UniversityGPO Box U 1987PerthWA 6845Australia

In this article,we looked at metallenes,a novel class of two-dimensional(2D)metals that are attracting interest in the energy and catalysis *** is one area where their exceptional physicochemical and electrical characteristics might be *** are unique because they include several metal atoms that are not in a coordinated *** makes them more active and improves their atomic uti-lization,which in turn increases their catalytic *** article delves into the potential of two-dimensional metals as electrocatalysts for carbon dioxide reduction,fuel oxidation,oxygen evolution,and oxygen reduction reactions in the context of sustainable energy *** to the exception-ally high surface-to-volume ratio,large surface area as well as their optimized atomic use efficiency,2D materials defined by atomic layers are crucial for surface-related sustainable energy *** to its exceptional properties,such as high conductivity and the ability to enhance the exposure of active metal sites,2D metallenes have recently attracted a lot of interest for use in catalysis,electronics,and energy-related *** their highly mobility,adjustable surface states,and electrical struc-tures that can be fine-tuned,2D metallenes are promising nanostructure materials for use in energy con-version with the sustainable applications.

关键词： Metallenes Electrocatalysts Electrochemical processes Atomically thin structure

Liquid-phase aerobic oxidation of benzyl alcohol catalyzed by mechanochemically synthesized manganese oxide

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Chinese Science Bulletin 2013年第19期58卷 2354-2359页

作者： ILYAS Mohammad SIDDIQUE mohsin saeed Muhammad National Centre of Excellence in Physical Chemistry University of Peshawar Department of Chemistry Government College University

Benzyl alcohol oxidation by molecular oxygen using solid manganese oxide as a catalyst and n-heptane as the solvent was studied in the liquid phase. The catalyst was synthesized by a simple mechanochemical process at room temperature and was characterized by different physical methods. The catalyst was highly active and 100% selective for benzyl alcohol conversion to benzaldehyde. The solid catalyst can be recovered from the reaction mixture by simple filtration and can be re-used. We found n-heptane to be an excellent solvent for the oxidation reaction, and that the catalyst did not leach into solution.

关键词：机械化学合成催化氧化苯甲醇锰氧化物液相固体催化剂反应混合物化学过程

Ag-Co3O4：Synthesis,characterization and evaluation of its photo-catalytic activity towards degradation of rhodamine B dye in aqueous medium

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Chinese Journal of Chemical Engineering 2018年第6期26卷 1264-1269页

作者： Muhammad saeed Majid Muneer Nida Mumtaz mohsin Siddique Nadia Akram Muhammad Hamayun Department of Chemisny Government College University Faisalabad Pakistan Department of Chemistry Bacha Khan University Charsadda Pakistan Department of Chemistry University of Gujrat Hafiz Hayat Campus Gujrat Pakistan

Synthesis,characterization of Co_3O_4 and Ag-Co_3O_4 composites and evaluation of their photo-catalytic activities towards photo-degradation of aqueous solution of rhodamine B dye under irradiation of visible light have been described in this ***_3O_4 was prepared by solid phase mechano chemical process using Co(NO_3)_2·6H_2O and NH_4 HCO_3 as precursor *** was deposited on Co_3O_4 from AgNO_3 using Calotropis gigantea extract as reducing ***,SEM and FTIR were used for characterization of prepared ***-catalytic efficiencies of as-prepared Co_3O_4 and Ag-Co_3O_4 were evaluated for aqueous phase photo-degradation of rhodamine *** was found that deposition of Ag on Co_3O_4 highly enhanced the photo-catalytic activity of Co_3O_***-catalytic degradation followed the Eley–Rideal *** 100% and 91% photo-degradation of 40 ml dye solution achieved at 313 K in 90 and 120 min over 0.05 g of Ag-Co_3O_4 as photo-catalyst using 100 and 200 mg·L^(-1) as initial concentration of dye respectively.

关键词： Co3O4 Ag-Co3O4 Photo-catalysis Photo-degradation Calotropis gigantea Rhodamine B Elay–Rideal mechanism

Artificial Intelligence and Internet of Things Enabled Intelligent Framework for Active and Healthy Living

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Computers, Materials & Continua 2023年第5期75卷 3833-3848页

作者： saeed Ali Alsareii mohsin Raza Abdulrahman Manaa Alamri Mansour Yousef AlAsmari Muhammad Irfan Hasan Raza Muhammad Awais Department of Surgery College of MedicineNajran University Saudi ArabiaNajran61441Saudi Arabia Department of Computer Science Edge Hill UniversitySt Helens RdOrmskirkL394QPUnited Kingdom Electrical Engineering Department College of EngineeringNajran University Saudi ArabiaNajran61441Saudi Arabia Department of Electrical Engineering Hamdard UniversityIslamabadPakistan

Obesity poses several challenges to healthcare and the well-being of *** can be linked to several life-threatening *** is a viable option in some instances to reduce obesity-related risks and enable weight ***-of-the-art technologies have the potential for long-term benefits in post-surgery *** this work,an Internet of Things(IoT)framework is proposed to effectively communicate the daily living data and exercise routine of surgery patients and patients with excessive *** proposed IoT framework aims to enable seamless communications from wearable sensors and body networks to the cloud to create an accurate profile of the *** also attempts to automate the data analysis and represent the facts about a *** IoT framework proposes a co-channel interference avoidance mechanism and the ability to communicate higher activity data with minimal impact on the bandwidth requirements of the *** proposed IoT framework also benefits from machine learning based activity classification systems,with relatively high accuracy,which allow the communicated data to be translated into meaningful information.

关键词： Artificial intelligence healthcare obesity Internet of Things machine learning physical activity classification activity monitoring

Machine-Learning-Enabled Obesity Level Prediction Through Electronic Health Records

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Computer Systems Science & Engineering 2023年第9期46卷 3715-3728页

作者： saeed Ali Alsareii Muhammad Awais Abdulrahman Manaa Alamri Mansour Yousef AlAsmari Muhammad Irfan mohsin Raza Umer Manzoor Department of Surgery College of MedicineNajran UniversityNajran61441Saudi Arabia Department of Computer Science Edge Hill UniversitySt Helens RdOrmskirkL394QPUK Electrical Engineering Department College of EngineeringNajran UniversityNajran61441Saudi Arabia Department of Computer Science Aston UniversityBirminghamB47ETUK

Obesity is a critical health condition that severely affects an individual’s quality of life *** occurrence of obesity is strongly associated with extreme health conditions,such as cardiac diseases,diabetes,hypertension,and some types of ***,it is vital to avoid obesity and or reverse its *** healthy food habits and an active lifestyle can help to prevent *** this regard,artificial intelligence(AI)can play an important role in estimating health conditions and detecting obesity and its *** study aims to see obesity levels in adults by implementing AIenabled machine learning on a real-life *** dataset is in the form of electronic health records(EHR)containing data on several aspects of daily living,such as dietary habits,physical conditions,and lifestyle variables for various participants with different health conditions(underweight,normal,overweight,and obesity type I,II and III),expressed in terms of a variety of features or parameters,such as physical condition,food intake,lifestyle and mode of *** classifiers,i.e.,eXtreme gradient boosting classifier(XGB),support vector machine(SVM),and artificial neural network(ANN),are implemented to detect the status of several conditions,including obesity *** findings indicate that the proposed XGB-based system outperforms the existing obesity level estimation methods,achieving overall performance rates of 98.5%and 99.6%in the scenarios explored.

关键词： Artificial intelligence obesity machine learning extreme gradient boosting classifier support vector machine artificial neural network electronic health records physical activity obesity levels