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A novel non-intrusive load monitoring technique using semi-supervised deep learning framework for smart grid

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Building Simulation 2024年第3期17卷 441-457页

作者： Mohammad Kaosain Akbar Manar Amayri nizar Bouguila Concordia Institute for Information Systems Engineering Concordia UniversityMontrealCanada

Non-intrusive load monitoring(NILM)is a technique which extracts individual appliance consumption and operation state change information from the aggregate power consumption made by a single residential or commercial *** plays a pivotal role in modernizing building energy management by disaggregating total energy consumption into individual appliance-level *** enables informed decision-making,energy optimization,and cost ***,NILM encounters substantial challenges like signal noise,data availability,and data privacy concerns,necessitating advanced algorithms and robust methodologies to ensure accurate and secure energy disaggregation in real-world *** learning techniques have recently shown some promising results in NILM research,but training these neural networks requires significant labeled *** initial sets of labeled data for the research by installing smart meters at the end of consumers’appliances is laborious and expensive and exposes users to severe privacy *** is also important to mention that most NILM research uses empirical observations instead of proper mathematical approaches to obtain the threshold value for determining appliance operation states(On/Off)from their respective energy consumption *** paper proposes a novel semi-supervised multilabel deep learning technique based on temporal convolutional network(TCN)and long short-term memory(LSTM)for classifying appliance operation states from labeled and unlabeled *** two thresholding techniques,namely Middle-Point Thresholding and Variance-Sensitive Thresholding,which are needed to derive the threshold values for determining appliance operation states,are also compared *** superiority of the proposed model,along with finding the appliance states through the Middle-Point Thresholding method,is demonstrated through 15%improved overall improved F1micro score and almost 26%improved Hamming loss,F1 and Specificity score for the p

关键词： semi-supervised learning non-intrusive load monitoring middle-point thresholding deep learning TCN LSTM

Alert Device for Social Distancing

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Communications and Network 2024年第2期16卷 31-50页

作者： Amer nizar AbuAli College of Computer Science and Engineering Taibah University Medina Saudi Arabia

Social distancing among people is vital in minimizing spread of COVID-19 within community and can be effective in flattening the outbreak. This research work focuses on developing a close contact proximity detection system among smartphone users, particularly of COVID-19 patient, using Bluetooth signal to identify and analyze close contact proximity and social distancing from other anonymous smartphone users in their surroundings. Covering a physical space of six feet, a mandatory safety measure in shopping centers, schools, and other crowded areas, is a social solution advocated by World Health Organization (WHO) officials in this COVID-19. Everyone is concerned about their safety in the COVID-19 environment, so we came up with the concept of producing this new equipment. Most of the time, our attention is drawn to those in front of us and to our sides, but we are unable to keep track of those behind us. The major goal of this project is to keep individuals at a safe distance from one another. PIR sensor is used in this proposed work. Why did the World Health Organization (WHO) put 6 feet as a social distancing? When someone coughs or sneezes, small droplets are spread from the cough or sneeze. If you are in close proximity, you can breathe in those droplets, which may contain the COVID-19 virus, according to the World Health Organization. Vanderbilt University infectious disease expert Dr. William Schaffner said the “6 feet distance” rule comes from studies of respiratory physiology. Schaffner explains that even “without a cough or sneeze, the exhaled air mixes with the surrounding air within a distance of 3 to 6 feet, which is known as the breathing zone.” Schaffner continues: “If you are standing 3 to 6 feet away from me, you may inhale droplets that spread through coughing or sneezing. Of course, if I am infected with the virus, these droplets will contain the virus.”

关键词： Social Distancing COVID-19 Pandemic

Using IoT to Smart Security Door System with Face Tracking Camera

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Intelligent Information Management 2024年第4期16卷 157-175页

作者： Amer nizar AbuAli College of Computer Science and Engineering Information Systems Department Taibah University Medina KSA

Security is a serious concern, whether it may be the security of assets, data and human life. Providing humans with security and safety for their belongings and items is an important need. A smart lock door project/ with different types of methods for entry, like fingerprint and authentication PIN code is suggested with an unnoticeable face tracking camera capturing a photo in case of error data entry. It is to be controlled via the user’s smartphone using Blynk with the implementation of IoT. This technology is made with two microcontrollers. ESP32 is used to control the solenoid lock, fingerprint sensor and keypad. ESP32-CAM is used to capture a photo and send it to the owner’s smartphone to be viewed on Telegram application. Many conclusions are extracted from system results, as well as suggested ideas for future work.

关键词： Security Block Diagram Microcontroller Bluetooth Dual Mode

Observer Based Control for a Class of Systems with Output Deadzone Nonlinearity

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Intelligent Control and Automation 2024年第3期15卷 95-107页

作者： nizar J. Alkhateeb Hameed K. Ebraheem Department of Electronic Engineering Technology College of Technological Studies Public Authority of Applied Education and Training (PAAET) Kuwait City Kuwait

In this paper, a combination of model based adaptive design along with adaptive linear output feedback controller is used to compensate for robotic manipulator with output deadzone nonlinearity. The deadzone dynamics are utilized to adaptively estimate the deadzone parameter and a switching function is designed to eliminate the error produced in the adaptive observer dynamics. The overall design of the closed loop system ensures stability in the BIBO criterion.

关键词： Adaptive Output Observer Deadzone Compensation Robot Manipulator Sliding Mode Control

基于介观传输格构网络的混凝土冻融热湿耦合模型

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硅酸盐学报 2024年

作者：张力沈雷张继勋董义佳徐磊 nizar FAISAL ALKAYEM 河海大学水利水电学院

寒区水工混凝土结构经历冻融循环而产生性能劣化，但冻融损伤的力学主导机理并不明晰。采用考虑混凝土介观材料非均质性的传输格构网络空间离散化方法，引入与温度相关的孔隙特性表征系数，提出混凝土冻融循环热湿耦合模型，实现均匀与... 详细信息

寒区水工混凝土结构经历冻融循环而产生性能劣化，但冻融损伤的力学主导机理并不明晰。采用考虑混凝土介观材料非均质性的传输格构网络空间离散化方法，引入与温度相关的孔隙特性表征系数，提出混凝土冻融循环热湿耦合模型，实现均匀与非均匀温变条件下冻融过程中冰含量滞回现象模拟分析。在利用均匀温变冰含量试验与变形量试验验证了所提模型后，针对非均匀温变冻融循环作用，分析了温度、冰含量、相对湿度、孔隙压力、冻胀应变随冻融次数和冷端距离的变化规律。在水分结冰–融化的过程中，孔隙内冰水混合物对固体骨架的力学作用呈现两个阶段。其一以流体压力为主，采用广义有效应力原理计算孔隙压力荷载。其二以固体应力为主，采用多孔介质弹性力学理论计算冻胀变形，作为非应力引起的应变作用于固体整体变形中。

关键词：传输格构网络冻融循环含冰量孔隙压力冻胀应变

Utilization of Logistical Regression to the Modified Sine-Gordon Model in the MST Experiment

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Open Journal of Modelling and Simulation 2024年第2期12卷 43-58页

作者： nizar J. Alkhateeb Hameed K. Ebraheem Eman M. Al-Otaibi Department of Electronic Engineering Technology College of Technological Studies (CTS) The Public Authority of Applied Education and Training (PAAET) Kuwait City Kuwait

In this paper, a logistical regression statistical analysis (LR) is presented for a set of variables used in experimental measurements in reversed field pinch (RFP) machines, commonly known as “slinky mode” (SM), observed to travel around the torus in Madison Symmetric Torus (MST). The LR analysis is used to utilize the modified Sine-Gordon dynamic equation model to predict with high confidence whether the slinky mode will lock or not lock when compared to the experimentally measured motion of the slinky mode. It is observed that under certain conditions, the slinky mode “locks” at or near the intersection of poloidal and/or toroidal gaps in MST. However, locked mode cease to travel around the torus;while unlocked mode keeps traveling without a change in the energy, making it hard to determine an exact set of conditions to predict locking/unlocking behaviour. The significant key model parameters determined by LR analysis are shown to improve the Sine-Gordon model’s ability to determine the locking/unlocking of magnetohydrodyamic (MHD) modes. The LR analysis of measured variables provides high confidence in anticipating locking versus unlocking of slinky mode proven by relational comparisons between simulations and the experimentally measured motion of the slinky mode in MST.

关键词： Madison Symmetric Torus (MST) Magnetohydrodyamic (MHD) Sine-Gordon Toroidal Dynamic Modelling Reversed Field Pinch (RFP) Logistical Regression

Does wet-cupping therapy improve repeated sprint ability,perceived wellness,and rating of perceived exertion in young active males?

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Sports Medicine and Health Science 2024年第4期6卷 378-384页

作者： Ismail Dergaa Amine Ghram Mohamed Romdhani Amine Souissi Achraf Ammar Ramadan Abdelmoez Farahat Mohamed Saifeddin Fessi Khadijeh Irandoust Morteza Taheri Tasnim Masmoudi Mohamed Amine Dergaa nizar Souissi Omar Hammouda Katja Weiss Karim Chamari Helmi Ben Saad Beat Knechtle Primary Health Care Corporation(PHCC) DohaP.O.Box 26555Qatar Research Unit Physical Activity Sportand HealthUR18JS01National Observatory of SportTunis 1003Tunisia High Institute of Sport and Physical Education University of SfaxSfaxTunisia Department of Cardiac Rehabilitation Heart HospitalHamad Medical CorporationDohaQatar Universite de Sousse Faculte de Medecine de SousseHopital Farhat HACHEDLaboratoire de Recherche(Insuffisance CardiaqueLR12SP09)SousseTunisia Healthy Living for Pandemic Event Protection(HL-PIVOT)Network ChicagoILUSA Interdisciplinary Laboratory in Neurosciences Physiology and Psychology:Physical ActivityHealth and LearningUFR STAPSUPLParis Nanterre UniversityNanterreFrance Department of Training and Movement Science Institute of Sport ScienceJohannes Gutenberg-University Mainz55128 MainzGermany Research Laboratory Molecular Bases of Human PathologyLR19ES13Faculty of Medicine of SfaxUniversity of SfaxSfax 3029Tunisia Faculty of Medicine Kafrelsheikh UniversityKafrelsheikh33511Egypt Department of Behavioral and Cognitive Sciences in Sport Faculty of Sport Sciences and HealthUniversity of TehranIran University of Sousse Farhat HACHED HospitalForensic ServiceSousseTunisia Medbase St.Gallen Am Vadianplatz St.GallenSwitzerland Aspetar Orthopaedic and Sports Medicine HospitalFIFA Medical Centre of ExcellenceDohaP.O.Box 29222Qatar Institute of Primary Care University of ZurichZurichSwitzerland

Wet-cupping therapy(WCT)is one of the oldest known medical techniques,used as a traditional and complementary therapy with a wide application all around the world for general *** on the effects of WCT on sports performance are sparse and ***,we aimed to explore the effects of WCT on repeated sprint ability,wellness,and exertion in young active ***-nine active adult males(age:[28±5]years;body height[177±8]cm;body mass:[79±7]kg;body mass index:[25.4±1.8]kg/m^(2))were selected for the *** participants performed a running-based sprint test on two separate occasions(Control and Post-WCT).WCT was performed 24 h before the testing *** completed the Hooper questionnaire to assess their well-being(i.e.,sleep,stress,fatigue,and soreness)before each *** rating of perceived exertion(RPE)was collected after each testing session.A higher maximum power(p<0.05,effect size[ES]=0.6),mean power(p<0.01,ES=0.5)and minimum power(p<0.01,ES=0.6)were recorded post-WCT as compared to Control session along with a better perceived sleep(p<0.01,ES=0.85).Perceived stress(p<0.01,ES=0.6)and RPE(p<0.001;ES=1.1)were lower during the post-WCT compared to the Control *** present findings demonstrated that WCT moderately enhanced repeated sprint ability and had positive effects on perceived sleep,stress,and *** may be an effective ergogenic aid to improve repeated sprint ability and general wellbeing in young adult *** large-scale multicentric clinical studies are paramount to confirm the results of our study.

关键词： Alternative medicine Complementary medicine Hijama Short-term maximal performance Sports medicine

Dunbar Syndrome and Hypoxic Hepatitis: An Unusual Presentation

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Open Journal of Gastroenterology 2024年第6期14卷 226-232页

作者： Hajar Cherkaoui Ismail Chaouech Yousra El Abidi Haroun Robleh Asmae Lamine Maria Lahlali Nada Lahmidani Amine Mekkaoui Mounia Elyousfi Dafr Allah Benajah Adil Ibrahimi Mohammed El Abkari nizar Bouardi Mohammed Maaroufi Hakima Abid Department of Gastroenterology University Hospital Hassan II Fez Morocco Faculty of Medicine and Pharmacy Fez Morocco Department of Radiology University Hospital Hassan II Fez Morocco

Hypoxic hepatitis, also known as ischemic hepatitis, is characterized by acute hepatocellular injury due to inadequate oxygen delivery to the liver. Celiac trunk stenosis can lead to hepatic ischemia and subsequent liver damage. We present the case of an 81-year-old patient with a history of hypertension, ischemic heart disease, hypothyroidism, and biliary lithiasis, who developed hypoxic hepatitis secondary to Dunbar syndrome and a stenosis of the superior mesenteric artery. The patient improved symptoms and liver function tests with conservative management, including intravenous fluids and supportive care. Long-term management involved continued antiplatelet therapy and statins, with consideration of further interventions for celiac trunk stenosis. This case underscores the importance of recognizing Dunbar syndrome as well as superior mesentery trunk stenosis as a potential cause of hypoxic hepatitis. It highlights the need for multidisciplinary management in such cases.

关键词： Dunbar Syndrome Hypoxic Hepatitis Stenosis of Mesentery Artery

Community Knowledge and Attitude about Burns First Aid (BFA) in Jazan, Saudi Arabia

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Journal of Biosciences and Medicines 2024年第4期12卷 135-148页

作者： Md. Mazharul Hoque Mohamed E. Moukhyer nizar A. Khamjan Bahja Al Siddig Elsie Maguen Shane Alam Abdulrahman Ibrahim Ali Hakami Siraj Yahya Mohammed Mobarki Bandar Hassan Sulaiman Ghazwani Ayman Abdulrhman Alhathiq Lamyaa El Hassan Aziza Mukhayer Emergency Medical Services Department Faculty of Applied Medical Sciences Jazan University Jazan Saudi Arabia Public Health Programmes School of Medicine University of Limerick Limerick Ireland School of Medicine Ahfad University for Women Omdurman Sudan Department of Medical Laboratory Technology Faculty of Applied Medical Sciences Jazan University Jazan Saudi Arabia Department of Basic Medical Sciences Faculty of Medicine Jazan University Jazan Saudi Arabia Department of Health Promotion University of Maastricht Maastricht Netherland

Introduction and Significance: Burn injury (BI) is a considerable health issue which is responsible for around 300,000 deaths and affecting about 11 million people every year worldwide. In Saudi Arabia, the prevalence of BIs array from 112 to 518 per 100,000 per year. The appropriate awareness of performing first aid could facilitate to improve the outcomes of burns. Purpose and Objectives: To appraise the community that acknowledges burns, first aid, and associated factors among the community population in Jazan City, Saudi Arabia. The paper aims to identify limitations to encourage additional research and persuade legislators to develop improved burn-injury care recommendations and training programs. Materials and Methods: An observational-based sample survey was conducted among the people who live in Jazan City aging 13 years or more, during April 5 to May 5, 2023. Data collection was done by a validated online self-administrated questionnaire sent randomly to community members in different parts of Jazan City via social media platforms. Collected data were coded and cleaned by an excel program, and finally exported on SPSS 26.0 software. The variables were analyzed using descriptive statistics like frequencies and percentages. Also, the Chi-square test was used to investigate the relation between different variables, with a significance value of P Results: This study included 243 participants (about 62%) among them were mostly male participants (151) having a university degree. The majority of participants 75% did not take any form of BFA training in the past. This study shows that 69.9% of the participants have inadequate awareness, despite 72% having a constructive attitude towards burn first aid. Previous burn-related first aid training was significantly associated with participants’ knowledge of BFA at a p-value less than 0.05. Conclusion: This study indicates a high frequency of Jazan population having inadequate knowledge of burn first aid despite the high

关键词： Burn Injury (BI) Burns First Aid Knowledge First Aid Training Jazan City