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IoT & AI Enabled Three-Phase Secure and Non-Invasive COVID 19 Diagnosis System

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Computers, Materials & Continua 2022年第4期71卷 423-438页

作者： Anurag Jain Kusum Yadav Hadeel fahad alharbi Shamik Tiwari Virtualization Department School of Computer ScienceUniversity of Petroleum and Energy StudiesDehradun248007UttarakhandIndia College of Computer Science and Engineering University of Ha’ilHa’ilKingdom of Saudi Arabia

Corona is a viral disease that has taken the form of an epidemic and is causing havoc worldwide after its first appearance in the Wuhan state of China in December *** to the similarity in initial symptoms with viral fever,it is challenging to identify this virus ***-detection of this virus at the early stage results in the death of the *** and densely populated countries face a scarcity of resources like hospitals,ventilators,oxygen,and healthcare *** like the Internet of Things(IoT)and artificial intelligence can play a vital role in diagnosing the COVID-19 virus at an early *** minimize the spread of the pandemic,IoT-enabled devices can be used to collect patient’s data remotely in a secure *** data can be analyzed through a deep learning model to detect the presence of the COVID-19 *** this work,the authors have proposed a three-phase model to diagnose covid-19 by incorporating a chatbot,IoT,and deep learning *** phase one,an artificially assisted chatbot can guide an individual by asking about some common *** case of detection of even a single sign,the second phase of diagnosis can be considered,consisting of using a thermal scanner and pulse *** case of high temperature and low oxygen saturation levels,the third phase of diagnosis will be recommended,where chest radiography images can be analyzed through an AI-based model to diagnose the presence of the COVID-19 virus in the human *** proposed model reduces human intervention through chatbot-based initial screening,sensor-based IoT devices,and deep learning-based X-ray *** also helps in reducing the mortality rate by detecting the presence of the COVID-19 virus at an early stage.

关键词： COVID-19 internet of things deep learning chatbot X-ray capsule network convolutional neural network

Indications for exchange or explantation of phakic implantable collamer lens with central port in patients with and without keratoconus

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International Journal of Ophthalmology(English edition) 2021年第11期14卷 1714-1720页

作者： Albanderi Alhamzah Saad S.alharbi fahad Alfardan Tariq Aldebasi Tariq Almudhaiyan King Saud bin Abdulaziz University for Health Sciences College of MedicineRiyadh 22490Saudi Arabia Anerior Segment Department King Khaled Eye Specialist HospitalRiyadh 7191Saudi Arabia Department of Surgery Division of OphthalmologyNational Guard HospitalRiyadh 22490Saudi Arabia King Abdullah International Medical Research Center Riyadh 22490Saudi Arabia

AIM:To evaluate the causes of phakic implantable collamer lens(ICL)exchange/explantation in patients with and without keratoconus(KC)at two tertiary hospitals in Riyadh,Saudi ***:A retrospective chart review of all patients who underwent ICL(model V4 c with central port)exchange/explantation was performed using the electronic medical record *** available preoperative and postoperative data were documented for each ***:Over 7 y,2283 ICL implantation procedures were performed;46 implants(2%)required exchange(21 implants)/explantation(25 implants),of which 14 cases(30.4%)were patients with *** for ICL exchange/explantation in non-KC group were vault measurement,cataract formation,increased intraocular pressure,inaccurate refraction,and patient dissatisfaction in 22(68.75%),4(12.5%),3(9.37%),2(6.25%),and 1(3.12%)case,*** most common indication for ICL exchange/explantation in the KC group was inaccurate vault sizing in 11 patients(78.57%),inaccurate refraction in 2 patients(14.28%),and patient dissatisfaction postoperatively in 1(7.14%)***:ICL implantation results in predictable refractive outcomes over the long term with exchange/explantation rates comparable to previous *** vault size is the most common cause of ICL exchange/explantation among patients with or without KC.

关键词： explantation exchange implantable collamer lens vault

Efficiency Performances of LVDC Supplies for Residential Building

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Computer Systems Science & Engineering 2023年第5期45卷 2171-2186页

作者： Anis Ammous Ammar Alsaedi Ahmed N.M.Alahmadi fahad alharbi Kaiçar Ammous Department of Electrical Engineering College of Engineering and Islamic ArchitectureUmm Al Qura UniversityMakkahKSA

The Low Voltage Direct Current(LVDC)architecture gives higher benefits over the classic low-voltage alternating current(LVAC)supply *** has fewer energy conversion stages,is compatible with renewable energy sources,and is easier to integrate with *** this paper,an LVDC supply concept is proposed and compared with currently used conventional photovoltaic(PV)systems in terms of *** new LVDC photovoltaic system behavior is validated using LTspice modeling *** findings of this work prove that the concept of LVDC supply is highly attractive when the electricity produced by the photovoltaic is used onsite in the *** carry out an efficient system,the PV power mounted in the houses should be precisely rated with respect to the magnitude of the load energy *** proposed three house examples to verify the superiority of our proposed system in comparison with the traditional LVDC PV *** annual analysis of the energy saved by the studied systems was carried *** main benefit of the suggested LVDC supply is the short way taken by the energy generated by the photovoltaic system to supply DC loads within daytime *** registered increase in system efficiency reached more than 20%for the proposed LVDC system.

关键词： Sustainable energy energy saving power conversion solar PV system

Analysis of Logistic Model with Constant Harvesting in a View of Non-Integer Derivative

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Journal of Mathematics and System Science 2020年第2期10卷 27-32页

作者： fahad M.alharbi Department of Mathematics Faculty of ScienceUniversity of TabukSaudi Arabia

The conformable fractional derivative method has been utilized in order to examine the logistic model with constant *** method introduces a generalization to the classical analysis of Logistic model,and hence the features of the Logistic model,such as subcritical and supercritical harvesting,have been investigated in a view of fractional *** positive auxiliary parameter,σ,with dimension of time is implemented to maintain the dimensionality of the *** significant information of such parameter to the population has been *** population expressions,obtained by conformable description,are compared with the expressions of the classical *** comparison shows that the non-integer expressions are in a parallel line with that of the classical one.

关键词： Logistic model conformable description non-integer derivative conformable differential equations fractional calculus.

Towards Understanding the Origins of Quantum Indeterminism and Non-Local Quantum Jumps

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Journal of Applied Mathematics and Physics 2018年第12期6卷 2468-2474页

作者： M. Sadiq fahad M. alharbi Department of Physics University of Tabuk Tabuk Saudi Arabia Department of Mathematics University of Tabuk Tabuk Saudi Arabia

By Invoking symmetry principle, we present a self-consistent interpretation of the existing quantum theory which explains why our world is fundamentally indeterministic and that why non-local quantum jumps occur. Symmetry principle dictates that the concept of probability is more fundamental than the notion of the wave function in that the former can be derived directly from symmetries rather than have to be assumed as an additional axiom. It is argued that the notion of quantum probability and that of the wavefunction are intimately connected.

关键词： Bohr-Einstein Debate Copenhagen Interpretation Indeterminism Leibniz-Clarke Dialogue Quantum Probability Space and Time

New Analytic Solution for Ambartsumian Equation

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Journal of Mathematics and System Science 2018年第7期8卷 182-186页

作者： fahad M.alharbi Abdelhalim Ebaid Department of Mathematics Faculty of ScienceUniversity of TabukP.O.Box 741Tabuk 71491Saudi Arabia

Analytical solution is obtained for Ambartsumian equation in this *** equation is of application in *** obtained solution has many advantages over the published one in the literature as shown by several comparisons.

关键词： Delay equation analytic solution

Investigation of the Surface Brightness Model in the Milky Way via Homotopy Perturbation Method

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Journal of Applied Mathematics and Physics 2020年第3期8卷 434-442页

作者： Abdullah A. Alatawi Mona Aljoufi fahad M. alharbi Abdelhalim Ebaid Department of Mathematics Faculty of Sciences University of Tabuk Tabuk KSA

In this paper, a linear delay model in astronomy, called as Ambartsumian equation, is investigated by two different approaches. The first is the approximate homotopy perturbation method (HPM), while the second is a new closed-form solution for this equation. The results are presented through a table and several plots and have been compared with the relevant literature. It is revealed that the present HPM is of higher accuracy than those approximate techniques used in previously published works, when compared with the obtained analytic solution. The convergence of the new analytic solution has been also discussed.

关键词： Delay Homotopy Perturbation Method Analytic Solution

Effect of Seeds Size on Germination of Faba Bean Plant

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Agricultural Sciences 2020年第5期11卷 465-471页

作者： Noha fahad Alngiemshy Jana Saleh Alkharafi Norah Saud alharbi Noorah Saleh Al-Sowayan Department of Biology College of Science Qassim University Buraydah Saudi Arabia Department of Biology Faculty of Science Qassim University Buraydah Saudi Arabia

The study was conducted in Al-Qassim region in February 2020 and the study aimed to know the effect of seed size on germination and some morphological parameters in Faba bean (Vicia faba L.) plant, by dividing the seeds into three sizes large 2.5 - 2.3 cm, medium 2.0 - 2.2 cm, and small 1.7 - 1.9 cm and planting them. The results showed that the germination percentage in the large seeds was the highest (100%), and the size of the seeds affected the length of the root and shoot as the large seeds gave the highest length for root (8.37 cm) and shoot (14.2 cm) compared to the medium and small seeds. So, for these results, the seed size is closely related to root and shoot length, number of leaves.

关键词： Faba Bean Seed Size Germination

Analysis of Local Diagnostic Reference Levels for Pediatric Patients Undergoing 18F-FDG PET/CT Imaging for Oncology

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Journal of Applied Mathematics and Physics 2023年第7期11卷 2144-2155页

作者： Saad Alqahtani Khaled Soliman Saad Alotaibi Khaled Alnofaie Abdullah Alahmari fahad Alyahya Abdullah Albdullah Rashed alharbi Radiodiagnostic and Medical Imaging Department Prince Sultan Military Medical City Riyadh Saudi Arabia Medical Physics Department Prince Sultan Military Medical City Riyadh Saudi Arabia

Background: The PET/CT imaging studies have two doses components the dose from the PET radiopharmaceutical and the other from the low dose CT used for PET images attenuation correction. We have one PET/CT scanner at our institution a Philips Time of Flight scanner. Our local patient’s radiation protection rules requires continuous assessment of radiation doses delivered to our patients. Purposes: The objectives of this study are to develop a weight- based facility DRLs for paediatric F-18-FDG PET-CT imaging for oncology in a large tertiary hospital and to determine whether the calculated DRLs compares with internationally published DRLs. Materials & Methods: Radiation dose data and patient demographics of two-hundreds and sixteen paediatric PET-CT oncology patients imaging procedures from one large tertiary hospital were selected and analysed in order to establish a facility paediatric DRLs. Statistical analysis was performed. Results: The PET dose reference levels ranged between [62 - 525] MBq of injected activity for a range of pediatric age groups. The CTDIvol values were between 3.5 and 16.5 mGy for all age groups. Comparison with current EANM and SNMMI recommendations of patient’s dose are discussed. Conclusion: Our pediatric PET/CT reference levels are higher than the ones reported internationally with notable variations. .

关键词： Diagnostic Reference Levels PET/CT 18-F-FDG Pediatric Radiation Dose CTDIvol Oncology