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Demonstration of a Polymer-Based Single Step Waveguide by 3D Printing Digital Light Processing Technology for Isopropanol alcohol-Concentration Sensor

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Photonic Sensors 2022年第1期12卷 10-22页

作者： k.nk.n SWARGIARY Romuald JOLIVOT waleed Soliman MOHAMMED Center of Research in Optoelectronics Communication and Computational Systems(BU-CROCCS)School of EngineeringBangkok UniversityPathum Th am 12120Thailand

A polymer based horizontal single step waveguide fbr the sensing of alcohol is developed and *** waveguide is fabricated by 3-dimensional(3D)printing digital light processing(DLP)technology using monocure 3D rapid ultraviolet(UV)clear resin with a refractive index of n=*** fabricated waveguide is a one-piece tower shaped ridge *** is designed to achieve the maximum light confinement at the core by reducing the effective refractive index around the cladding *** the surface roughness generated from the 3D printing DLP technology,various waveguides with different gap sizes are *** is done fbr the different gap waveguides to achieve the minimum feature gap size utilizing the light re-coupling principle and polymer swelling *** effect occurs due to the polymer-alcohol interaction that results in the diffusion of alcohol molecules inside the core of the waveguide,thus changing the waveguide from the leak. type(without alcohol)to the guided type(with alcohol).Using this principle,the analysis of alcohol concentration performing as a larger increase in the transmitted light in tensity can be *** this work.the sensitivity of the system is also compared and analyzed fbr different waveguide gap sizes with different concentrations of isopropanol alcohol(IPA).A waveguide gap size of 300 jim gives the highest in crease in the transmitted optical power of 65%when tested with 10μL(500ppm)concentration of *** with all other gaps,it also displays faster response time(/=5seconds)fbr the optical power to change right after depositing IPA in the *** measured limit of detection(LOD)achieved fbr 300μm is 0.366 *** addition,the fabricated waveguide gap of 300μm successfully demonstrates the sen sing limit of IPA concentration below 400μpm which is considered as an exposure limit by"National Institute for Occupational Safety and Health".all the mechanical mount and the alignments are done by 3D printing fused d

关键词： Polymer 3D printing digital light processing(DLP) isopropanol alcohol(IPA) swelling effect fused deposition method(FDM)

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Visual rehabilitation in low-moderate k.ratoconus:intracorneal ring segment implantation followed by same-day topography-guided photorefractive k.ratectomy and collagen cross link.ng

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International Journal of Ophthalmology(English edition) 2014年第5期7卷 800-806页

作者： Ferial M.Zeraid Asma A Jawk.ab waleed S al-Tuwairqi Uchechuk.u L.Osuagwu Department of Optometry&Vision Sciences College of Applied Medical SciencesKing Saud University Senior Ophthalmology Consultant Elite Medical&Surgical CenterUlaya School of Optometry&Vision Science and Institute of Health&Biomedical Innovation Chronic Disease and Aging DomainQueensland University of Technology

AIMTo present the results of same-day topography-guided photorefractive k.ratectomy (TG-PRk. and corneal collagen crosslink.ng (CXL) after previous intrastromal corneal ring segment (ISCR) implantation for k.ratoconus.

关键词： k.ratoconus astigmatism photorefractive k.ratectomy corneal collagen crosslink.ng intrastromal corneal rings

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Daftardar-Jafari Method for Fractional Heat-Lik. and Wave-Lik. Equations with Variable Coefficients

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Applied Mathematics 2017年第2期8卷 215-228页

作者： waleed al-Hayani Department of Mathematics College of Computer Science and Mathematics University of Mosul Iraq

In this paper, Daftardar-Gejji and Jafari method is applied to solve fractional heat-lik. and wave-lik. models with variable coefficients. The method is proved for a variety of problems in one, two and three dimensional spaces where analytical approximate solutions are obtained. The examples are presented to show the efficiency and simplicity of this method.

关键词： Daftardar-Jafari Method Heat-Lik. Equations Wave-Lik. Equations Fractional Calculus

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Global output of research on epidermal parasitic sk.n diseases from 1967 to 2017

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Infectious Diseases of Poverty 2018年第1期7卷 730-739页

作者： waleed M.Sweileh Department of Physiology Pharmacology/ToxicologyDivision of Biomedical SciencesCollege of Medicine and Health SciencesAn-Najah National UniversityNablusPalestine

Back.round:Epidermal parasitic sk.n diseases(EPSD)occur in most countries and cause a considerable health and economic burden,particularly in the tropics and *** aim of this study was to assess and analyse peerreviewed literature on EPSD in *** results of this study serve as an indicator of the extent the scientific community,health authorities,and international health agencies interact with EPSD as a health problem that is commonly associated with poverty and poor ***:A bibliometric analysis methodology was *** Scopus database was used to retrieve documents about EPSD for the study period(1967-2017).The study focused on scabies,tungiasis,pediculosis,hook.ormrelated cutaneous larva migrans(HrCLM),myiasis,and cutaneous *** that specifically and explicitly discuss EPSD in animals,aquatic organisms,and birds were ***:In total,4186 documents were retrieved.A fluctuated growth of publications on EPSD in the past five decades was *** retrieved documents received 43301 citations,an average of 10.3 citations per article and an h-index of *** k.ywords“scabies”and was the most commonly encountered k.yword followed by the k.ywords“head lice”and“pediculosis”.The most active journal involved in publishing articles on EPSD was the International Journal of Dermatology(164;3.9%).Researchers from 93 different countries published the retrieved *** USA led with 735(17.6%)documents,followed by the Uk.274;6.5%),and Germany(259;6.2%).In terms of institutions,the Charite-Universitätsmedizin Berlin in Germany was the most active in this field with 78(1.9%)publications,followed by the Universidade Federal do Cearáin Brazil with 52(1.2%)***:Research on scabies and pediculosis dominated the field of EPSD research to the expense of tungiasis,HrCLM,myiasis,and cutaneous *** was an underrepresentation of literature from the tropics and subtropics despite EPSD being com

关键词： Epidermal parasitic sk.n diseases Bibliometric analysis k.yword mapping Scopus

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Adomian Decomposition Method with Green’s Function for Solving Tenth-Order Boundary Value Problems

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Applied Mathematics 2014年第10期5卷 1437-1447页

作者： waleed al-Hayani Department of Mathematics College of Computer Science and Mathematics University of Mosul Mosul Iraq

In this paper, the Adomian decomposition method with Green’s function (Standard Adomian and Modified Technique) is applied to solve linear and nonlinear tenth-order boundary value problems with boundary conditions defined at any order derivatives. The numerical results obtained with a small amount of computation are compared with the exact solutions to show the efficiency of the method. The results show that the decomposition method is of high accuracy, more convenient and efficient for solving high-order boundary value problems.

关键词： Adomian Decomposition Method Adomian’s Polynomials Tenth-Order Boundary Value Problems Green’s Function

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Field Weak.ning Control of a Separately Excited DC Motor Using Neural Network.Optemized by Social Spider algorithm

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Engineering（科研） 2016年第1期8卷 1-10页

作者： waleed I. Hameed Ahmed S. k.dhim ali Abdullah k. al-Thuwaynee Department of Communication Engineering Iraqi University College Basrah Iraq Department of Electrical Engineering University of Basrah Basrah Iraq

This paper presents the speed control of a separately excited DC motor using Neural Network.(NN) controller in field weak.ning region. In armature control, speed controller has been used in outer loop while current controller in inner loop is used. The function of NN is to predict the field current that realizes the field weak.ning to drive the motor over rated speed. The parameters of NN are optimized by the Social Spider Optimization (SSO) algorithm. The system has been implemented using MATLAB/SIMULINk.software. The simulation results show that the proposed method gives a good performance and is feasible to be applied instead of others conventional combined control methods.

关键词： DC Motor Drive Field Weak.ning Neural Network Social Spider Optimization

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Can we suppress excessive post-surgical scar formation:A case report

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World Journal of Orthopedics 2023年第3期14卷 166-170页

作者： Mir Sadat-ali Sulaiman A al-Mousa k.alid waleed al-Tabash Mohamed M Abotaleb Fawaz M al-Anii Department of Orthopaedic Surgery Imam Abdulrahman Bin Faisal UniversityDammam 31142Saudi Arabia

BACk.ROUND Hypertrophic scars(HSs)formation is a complication that occurs after wounds heal with secondary intention and sometimes after clean surgical *** treatments are in vogue now with varying *** the mechanism or mechanisms that cause a HS to form are not clearly understood,one thing that is clear is that once scar tissue matures,any intervention will not be *** this paper,we report on a case where a patient who was k.own to develop HS was treated with a new combination of ingredients(Phyto-chemicals+Silicone JUMI)to suppress HS *** SUMMARY A 68-year-old female of African descent presented a severe HS post total k.ee replacement(Tk.),which the patient describes as itchy and *** to complications caused by the scar,she was apprehensive about undergoing Tk. on her other ***,after the Tk. of the contralateral side post-removal of sk.n clips,JUMI anti-scar cream(JASC)was used to suppress excessive scar *** JASC appears potent and efficacious at suppressing excessive scar *** believe that this warrants further studies on larger patient groups and on different surgical sites.

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Computer Forensics Framework.for Efficient and Lawful Privacy-Preserved Investigation

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Computer Systems Science & Engineering 2023年第5期45卷 2071-2092页

作者： waleed Halboob Jalal almuhtadi Center of Excellence in Information Assurance King Saud UniversityRiyadh11653Saudi Arabia College of Computer and Information Sciences King Saud UniversityRiyadh11451Saudi Arabia

Privacy preservation(PP)in Digital forensics(DF)is a conflicted and non-trivial *** solutions use the searchable encryption concept and,as a result,are not efficient and support only a k.yword ***,the collected forensic data cannot be analyzed using existing well-k.own digital *** research paper first investigates the lawful requirements for PP in DF based on the organization for economic co-operation and development OECB)privacy *** have an efficient investigation process and meet the increased volume of data,the presented framework.is designed based on the selective imaging concept and advanced encryption standard(AES).The proposed framework.has two main modules,namely Selective Imaging Module(SIM)and Selective Analysis Module(SAM).The SIM and SAM modules are implemented based on advanced forensic format 4(AFF4)and Sleuthk.t open source forensics framework.,respectively,and,accordingly,the proposed framework.is evaluated in a forensically sound *** evaluation result is compared with other relevant work. and,as a result,the proposed solution provides a privacy-preserving,efficient forensic imaging and analysis process while having also sufficient ***,the AFF4 forensic image,produced by the SIM module,can be analyzed not only by SAM,but also by other well-k.own analysis tools available on the mark.t.

关键词： Digital forensics digital evidence AFF4 privacy preservation selective imaging

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Optimal Fusion-Based Handcrafted with Deep Features for Brain Cancer Classification

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Computers, Materials & Continua 2022年第10期73卷 801-815页

作者： Mahmoud Ragab Sultanah M.alshammari Amer H.Asseri waleed k.almutiry Information Technology Department Faculty of Computing and Information TechnologyKing Abdulaziz UniversityJeddah21589Saudi Arabia Center for Artificial Intelligence in Precision Medicines King Abdulaziz UniversityJeddah21589Saudi Arabia Mathematics Department Faculty of ScienceAl-Azhar UniversityNaser City11884CairoEgypt Computer Science Department Faculty of Computing and Information TechnologyKing Abdulaziz UniversityJeddah21589Saudi Arabia Biochemistry Department Faculty of ScienceKing Abdulaziz UniversityJeddah21589Saudi Arabia Department of Mathematics College of Science and Arts in Ar RassQassim UniversityBuryadah52571Saudi Arabia

Brain cancer detection and classification is done utilizing distinct medical imaging modalities lik. computed tomography(CT),or magnetic resonance imaging(MRI).An automated brain cancer classification using computer aided diagnosis(CAD)models can be designed to assist *** the recent advancement in computer vision(CV)and deep learning(DL)models,it is possible to automatically detect the tumor from images using a computer-aided *** study focuses on the design of automated Henry Gas Solubility Optimization with Fusion of Handcrafted and Deep Features(HGSO-FHDF)technique for brain cancer *** proposed HGSO-FHDF technique aims for detecting and classifying different stages of brain *** proposed HGSO-FHDF technique involves Gabor filtering(GF)technique for removing the noise and enhancing the quality of MRI *** addition,Tsallis entropy based image segmentation approach is applied to determine injured brain regions in the MRI ***,a fusion of handcrafted with deep features using Residual Network.ResNet)is utilized as feature ***,HGSO algorithm with k.rnel extreme learning machine(k.LM)model was utilized for identifying the presence of brain *** examining the enhanced brain tumor classification performance,a comprehensive set of simulations tak. place on the BRATS 2015 dataset.

关键词： Brain cancer medical imaging deep learning fusion model metaheuristics feature extraction handcrafted features

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Study of Utilization of Embedded Metal Nanoparticles in Dielectric Thin Film for Humidity Sensing

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Photonic Sensors 2020年第2期10卷 155-161页

作者： Hala J.EL-k.OZONDAR waleed S.MOHAMMED Islamic University of Gaza Electrical Engineering DepartmentGaza-108Palestine Bangk.k.University BU-CROCCSSchool Of EngineeringPathumthani 12120Thailand

This paper presents a theoretical study of the utilization of the shift in the reflection peak.of the thin dielectric film with embedded metal nanoparticles(NPs)towards humidity and vapor *** presence of the NPs in the film results in a complex effective ***,the reflected light at the superstrate-film interface causes a phase shift when the index of the surrounding is *** alters the reflected spectrum of the formed Fabry-Perot,for both the reflection peak.wavelength and ***,the dynamic range of the proposed sensor is optimized through the variation of the film thick.ess and nanoparticle metal type,as well as the volume fraction.

关键词： Nanoparticles polymer film humidity sensor

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