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Robust and High Accuracy Algorithm for Detection of Pupil Images

Computers, Materials & Continua 2022年第10期73卷 33-50页

作者： Waleed El Nahal Hatim G.Zaini Raghad H.Zaini Sherif S.M.Ghoneim Ashraf mohamed ali Hassan Electronics and Communications Engineering Department Faculty of EngineeringMSA UniversityCO12585Egypt Computer Engineering Department College of Computer and Information TechnologyTaif UniversityTaif21944Saudi Arabia Faculty of Health and Rehabilitation Sciences Princess Nourah bint Abdulrahman UniversityRiyadhSaudi Arabia Department of Electrical Engineering College of EngineeringTaif UniversityTaif21944Saudi Arabia Electronics and Communications Engineering Department Faculty of EngineeringSinai UniversityArishCO45511Egypt

Recently,many researchers have tried to develop a robust,fast,and accurate *** algorithm is for eye-tracking and detecting pupil position in many applications such as head-mounted eye tracking,gaze-based human-computer interaction,medical applications(such as deaf and diabetes patients),and attention *** real-world conditions challenge the eye appearance,such as illumination,reflections,and *** the other hand,individual differences in eye physiology and other sources of noise,such as contact lenses or *** present work introduces a robust pupil detection algorithm with and higher accuracy than the previous attempts for real-time analytics *** proposed circular hough transform with morphing canny edge detection for Pupillometery(CHMCEP)algorithm can detect even the blurred or noisy images by using different filtering methods in the pre-processing or start phase to remove the blur and noise and finally the second filtering process before the circular Hough transform for the center fitting to make sure better *** performance of the proposed CHMCEP algorithm was tested against recent pupil detection *** and results show that the proposed CHMCEP algorithm achieved detection rates of 87.11,78.54,58,and 78 according to´Swirski,ExCuSe,Else,and labeled pupils in the wild(LPW)data sets,*** results show that the proposed approach performs better than the other pupil detection methods by a large margin by providing exact and robust pupil positions on challenging ordinary eye pictures.

关键词： Pupil detection eye tracking pupil edge morphing techniques eye images dataset

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FeP nanorod array:A high-efficiency catalyst for electroreduction of NO to NH3 under ambient conditions

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Nano Research 2022年第5期15卷 4008-4013页

作者： Jie Liang Qiang Zhou Ting Mou Hongyu Chen Luchao Yue Yongsong Luo Qian Liu mohamed S.Hamdy Abdulmohsen ali Alshehri Feng Gong Xuping Sun Institute of Fundamental and Frontier Sciences University of Electronic Science and Technology of ChinaChengdu 610054China Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education School of Energy and EnvironmentSoutheast UniversityNanjing 211189China Institute for Advanced Study Chengdu UniversityChengdu 610106China Catalysis Research Group(CRG) Department of ChemistryCollege of ScienceKing Khalid UniversityP.O.Box 900461413 AbhaSaudi Arabia Chemistry Department Faculty of ScienceKing Abdulaziz UniversityP.O.Box 80203Jeddah 21589Saudi Arabia

Sustainable mitigation of the continuously rising concentration of NO contaminants is among the most urgent issues of this *** electrocatalytic conversion of NO into useful NH_(3)offers an attractive path toward achieving sustainable NO abatement and NH_(3)production ***,its efficiency is challenged by the intense competition from hydrogen evolution reaction and relatively high energy barriers of NO *** is thus highly desirable to explore active electrocatalyst for NO reduction reaction and investigate the mechanisms on relevant ***,we introduce an FeP nanorod array on carbon cloth as a high-efficiency catalyst for NO electroreduction to *** 0.2 M phosphate-buffered solution,this catalyst exhibits a low onset potential of-0.014 ***,it achieves a remarkable Faradaic efficiency of 88.49%and a large NH_(3)yield of 85.62μmol·h^(-1)cm^(-2),with durability for stable NO conversion over 12 h of *** catalytic mechanism on FeP is investigated further by theoretical calculations.

关键词： FeP nanoarray NO reduction reaction NH_(3)synthesis electrocatalysis density functional theory

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Comparison of nutrient use efficiency,antioxidant assay,and nutritional quality of butter-head lettuce(Lactuca sativa L.)in five cultivation systems

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International Journal of Agricultural and Biological Engineering 2023年第1期16卷 95-103页

作者： Mazhar H.Tunio Jianmin Gao Tarek M.K.mohamed Fiaz Ahmad Irfan Abbas Sher ali Shaikh School of Agricultural Engineering Jiangsu UniversityZhenjiang 212013JiangsuChina

A greenhouse experiment was conducted to evaluate the comparison of nutrient use efficiency,antioxidant assay,and nutritional quality of butter-head lettuce in five cultivation *** this experimental study,a split-boxes experimental arrangement in a completely randomized design(CRD)with three aeroponics systems(high pressure(T1),low pressure(T2),and ultrasonic nozzle(T3)),hydroponic system(T4),and conventional cultivation system(T5)was *** analyses of variance(ANOVA)were employed to assess yield,chlorophyll content,relative water content(RWC),nutrient use efficiency(NUE),2,2-Diphenyl-1-picrylhydrazyl(DDPH),Hydrogen Peroxide(H2O2),Ferric Reducing Antioxidant Power(FRAP),total phenolic(TPC),flavonoid content(TFC)and nutritional quality of butter-head *** experimental comparative results indicated that the shoot and root(fresh and dry)weight,root-to-shoot ratio,chlorophyll contents,CWC,NUE,DDPH,H 2O 2,FRAP,TPC,TFC,nitrate,vitamin C,and protein level were significantly(p0.7)among the Shoot(FW),Chlorophyll,RWC,NUE,and among TPC,TFC,DDPH,H 2O 2,and *** study demonstrates that butter-head lettuce grown in aeroponics systems with high-pressure nozzles may serve as a potential dietary source and is rich in natural antioxidants.

关键词： aeroponics high-pressure nozzle phenolic content antioxidants lettuce

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Thermal degradation of diethanolamine at stripper condition for CO2 capture: Product types and reaction mechanisms

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Chinese Journal of Chemical Engineering 2019年第12期27卷 2900-2908页

作者： Idris mohamed Saeed Brahim Si ali Badrul mohamed Jan Wan Jefrey Basirun Shaukat ali Mazari Ibrahim ali Obid Birima Department of Chemistry Faculty of ScienceUniversity of MalayaKuala Lumpur 50603Malaysia Department of Chemical Engineering Faculty of EngineeringUniversity of MalayaKuala Lumpur 50603Malaysia Department of Chemical Engineering Faculty of EngineeringDawood University of Engineering and TechnologyMA Jinnah RoadKarachi 74800Pakistan

Amine-based absorption/stripping is one of the promising technology for CO2 capture from natural and industrial gas *** the process,amines and CO2 undergo irreversible reactions to produce undesired compounds,which cause corrosion,foaming,increased viscosity and breakdown of equipment,ultimately contributing to the economic loss and environmental *** this study,the thermal degradation of aqueous diethanolamine in the presence and absence of dissolved CO2 was *** experiments were performed in stainless steel *** results show that thermal degradation in the absence of CO2 was a slow process;triethanolamine,and tris(2-aminoethyl)amine were only the degradation products identified in the mixture In addition,the rate of degradation was very low,only 3%degradation was observed after 4 *** in the presence of CO2,sixteen degradation products were identified,nine of which were new degradation products reported for the first time in this *** 3-(2-hydroxyethyl)-2-oxazolidinone,1,4-bis(2-hydroxyethyl)piperazine and triethanolamine were the most abundant degradation *** remaining DEA concentration after 4 weeks was about 20%of the total amine *** most probable degradation reactions and their mechanisms are also proposed.

关键词： Diethanolamine CO2 capture Degradation Mechanism

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Chaotic Flower Pollination with Deep Learning Based COVID-19 Classification Model

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Computers, Materials & Continua 2023年第3期74卷 6195-6212页

作者： T.Gopalakrishnan mohamed Yacin Sikkandar Raed Abdullah Alharbi P.Selvaraj Zahraa H.Kareem Ahmed Alkhayyat ali Hashim Abbas Department of Information Technology Manipal Institute of Technology BengaluruManipal Academy of Higher EducationManipalIndia Department of Medical Equipment Technology College of Applied Medical SciencesMajmaah UniversityAl Majmaah11952Saudi Arabia Public Health Department College of Applied Medical SciencesMajmaah UniversityAl Majmaah11952Saudi Arabia Department of Computing Technologies College of Engineering and TechnologyFaculty of Engineering and TechnologySRM Institute of Science and TechnologyKattankulathur603203TamilnaduIndia Medical Instrumentation Techniques Engineering Department Al-Mustaqbal University CollegeBabylonIraq College of Technical Engineering The Islamic UniversityNajafIraq College of Information Technology Imam Ja’afar Al-Sadiq UniversityAl-Muthanna66002Iraq

The Coronavirus Disease(COVID-19)pandemic has exposed the vulnerabilities of medical services across the globe,especially in underdeveloped *** the aftermath of the COVID-19 outbreak,a strong demand exists for developing novel computer-assisted diagnostic tools to execute rapid and cost-effective screenings in locations where many screenings cannot be executed using conventional *** imaging has become a crucial component in the disease diagnosis process,whereas X-rays and Computed Tomography(CT)scan imaging are employed in a deep network to diagnose the *** general,four steps are followed in image-based diagnostics and disease classification processes by making use of the neural networks,such as network training,feature extraction,model performance testing and optimal feature *** current research article devises a Chaotic Flower Pollination Algorithm with a Deep Learning-Driven Fusion(CFPADLDF)approach for detecting and classifying *** presented CFPA-DLDF model is developed by integrating two DL models to recognize COVID-19 in medical ***,the proposed CFPA-DLDF technique employs the Gabor Filtering(GF)approach to pre-process the input *** addition,a weighted voting-based ensemble model is employed for feature extraction,in which both VGG-19 and the MixNet models are ***,the CFPA with Recurrent Neural Network(RNN)model is utilized for classification,showing the work’s novelty.A comparative analysis was conducted to demonstrate the enhanced performance of the proposed CFPADLDF model,and the results established the supremacy of the proposed CFPA-DLDF model over recent approaches.

关键词： Deep learning medical imaging fusion model chaotic models ensemble model COVID-19 detection

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ON A SECOND ORDER DISSIPATIVE ODE IN HILBERT SPACE WITH AN INTEGRABLE SOURCE TERM

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Acta Mathematica Scientia 2012年第1期32卷 155-163页

作者： Alain Haraux mohamed ali Jendoubi UPMC Univ Paris 06 UMR 7598Laboratoire Jacques-Louis Lions CNRS UMR 7598Laboratoire Jacques-Louis Lions Facult des Sciences de Bizerte Dpartement de Mathmatiques

Asymptotic behaviour of solutions is studied for some second order equations including the model casex（t）＋γx（t）＋ ↓△φb（x（t）） = h（t） with γ 〉 0 and h ∈ L1（O, ＋∞; H）, φ being continuouly differentiable with locally Lipschitz continuous gradient and bounded from below. In particular when φ is convex, all solutions tend to minimize the potential φ as time tends to infinity and the existence of one bounded trajectory implies the weak convergence of all solutions to equilibrium points.

关键词： dissipative dynamical system asymptotic behaviour gradient system heavyball with friction

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Calpain-1 Mediated Mitochondria ROS/NLRP3 Inflammasome in Atherosclerosis

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Journal of Biosciences and Medicines 2023年第4期11卷 50-59页

作者： Futian Tang mohamed ali Awad Lanzhou University Second Hospital Lanzhou China

Calpains are calcium-activated cysteine proteases. There are two main isoforms of calpain that are ubiquitously expressed in tissues, calpain μ or calpain 1, which requires micromolar Ca2+ for activation, and calpain or 2, which requires millimolar Ca2+ for activation. The presence of other calpains is tissue specific. Atherosclerosis (AS) is an important risk factor for cerebral infarction, coronary heart disease and peripheral vascular disease. It was originally thought that AS was caused by impaired lipid metabolism. This research briefly reviewed Calpain Family, the structure and activation mechanism of calpain1, Calpains in the pathogenesis of atherosclerosis, NLRP3 structural characteristics and activation, ROS/NLRP3 inflammasome activation mechanism and ROS/NLRP3 inflammasome in atherosclerosis. The research showed that the Calpain-1 may play an important role in mitochondrial ROS/NLRP3 inflammasome in atherosclerosis.

关键词： Calpain-1 ROS/NLRP3 Inflammasome Atherosclerosis (AS)

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Graph Transformer for Communities Detection in Social Networks

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Computers, Materials & Continua 2022年第3期70卷 5707-5720页

作者： G.Naga Chandrika Khalid Alnowibet K.Sandeep Kautish E.Sreenivasa Reddy Adel F.Alrasheedi ali Wagdy mohamed Department of Computer Science and Engineering ANU College of Engineering and TechnologyGuntur522510India Statistics and Operations Research Department College of ScienceKing Saud UniversityRiyadh11451Kingdom of Saudi Arabia LBEF Campus Kathmandu44600Nepal Department of Computer Science and Engineering ANUGuntur522510India Operations Research Department Faculty of Graduate Studies for Statistical ResearchCairo UniversityGiza12613Egypt Wireless Intelligent Networks Center(WINC) School of Engineering and Applied SciencesNile UniversityGiza12588Egypt

Graphs are used in various disciplines such as telecommunication,biological networks,as well as social *** large-scale networks,it is challenging to detect the communities by learning the distinct properties of the *** deep learning hasmade contributions in a variety of domains,we try to use deep learning techniques to mine the knowledge from large-scale graph *** this paper,we aim to provide a strategy for detecting communities using deep autoencoders and obtain generic neural attention to *** advantages of neural attention are widely seen in the field of NLP and computer vision,which has low computational complexity for large-scale *** contributions of the paper are summarized as ***,a transformer is utilized to downsample the first-order proximities of the graph into a latent space,which can result in the structural properties and eventually assist in detecting the ***,the fine-tuning task is conducted by tuning variant hyperparameters cautiously,which is applied to multiple social networks(Facebook and Twitch).Furthermore,the objective function(crossentropy)is tuned by L0 ***,the reconstructed model forms communities that present the relationship between the *** proposed robust model provides good generalization and is applicable to obtaining not only the community structures in social networks but also the node *** proposed graph-transformer shows advanced performance on the social networks with the average NMIs of 0.67±0.04,0.198±0.02,0.228±0.02,and 0.68±0.03 on Wikipedia crocodiles,Github Developers,Twitch England,and Facebook Page-Page networks,respectively.

关键词： Social networks graph transformer community detection graph classification

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Effectiveness and safety of generic and brand direct acting antivirals for treatment of chronic hepatitis C

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World Journal of Clinical Cases 2022年第34期10卷 12566-12577页

作者： Maheeba Abdulla Aysha mohamed Al Ghareeb Hamed ali Hasan Yusuf Husain Nafeesa Mohammed Jehad Al Qamish Department of Internal Medicine Salmaniya Medical ComplexArabian Gulf UniversityManama 2904Bahrain Department of Internal Medicine Salmaniya Medical ComplexManama 2904Bahrain Internal Medicine Department Ibn AlNafees HospitalManama 3302Bahrain

BACKGROUND Direct acting antivirals(DAAs)are a very effective treatment for hepatitis C virus(HCV).However,brand DAAs are *** licensing of cheaper generic DAAs may address this issue,but there is a lack of clinical studies comparing the efficacy of generic vs brand DAA *** To compare the efficacy and safety of generic against brand DAAs for chronic hepatitis C treatment in *** This was a retrospective observational study involving 289 patients with chronic HCV infection during 2016 to *** were 149 patients who were treated with brand DAAs,while 140 patients were treated with generic *** used DAAs were Ombitasvir/Paritaprevir/Ritonavir±Dasabuvir±Ribavirin,and Sofosbuvir/Daclatasvir±*** at 12 wk post treatment was the main outcome *** Overall,87 patients(30.1%)had cirrhosis and 68.2%had genotype 1 HCV *** 12 wk post treatment,SVR was achieved by 271(93.8%)of the *** patients who were treated with generic medications,134(95.7%)achieved SVR at 12 wk post treatment,compared to 137(91.9%)among those treated with brand medications(P=0.19).Having cirrhosis[odds ratio(OR):9.41,95%confidence interval(CI):2.47–35.84]and having HCV genotype 3(OR:3.56,95%CI:1.03–12.38)were significant independent predictors of not achieving *** transaminase,gamma-glutamyl transpeptidase,and total bilirubin levels decreased significantly following therapy with both generic and brand *** Generic and brand DAAs demonstrate comparable effectiveness in the treatment of chronic hepatitis C *** are safe and equally effective in improving biochemical markers of hepatic inflammation.

关键词： Hepatitis C virus Direct acting antivirals Generic Brand Sofosbuvir Ombitasvir Ledipasvir Daclatasvir Paritaprevir Ritonavir Dasabuvir Ribavirin Sustained virologic response

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Non-surgical management of dens invaginatus type IIIB in maxillary lateral incisor with three root canals and 6-year follow-up:A case report and review of literature

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World Journal of Clinical Cases 2022年第33期10卷 12240-12256页

作者： Suraj Arora Gurdeep Singh Gill Shahabe Abullais Saquib Priyanka Saluja Suheel M Baba Shafait Ullah Khateeb Anshad M Abdulla Shashit Shetty Bavabeedu Ahmed Babiker mohamed ali mohamed Fadul A Elagib Department of Restorative Dental Sciences College of DentistryKing Khalid UniversityAbha 61421Saudi Arabia Department of Conservative Dentistry and Endodontics JCD Dental CollegeSirsa 125055India Department of Periodontics and Community Dental Sciences King Khalid UniversityAbha 61421Saudi Arabia Department of Pediatric Dentistry and Orthodontic Sciences King Khalid UniversityAbha 61421Saudi Arabia

BACKGROUND The presence of dens invaginatus(DI)complicates treatment of any tooth,from diagnosis to access cavity and biomechanical preparation and *** of successful non-surgical management of DI type IIIB in maxillary lateral incisor are ***,we report such a case,with three root canals and a long *** SUMMARY A 13-year-old female patient presented with mild pain in the maxillary right lateral incisor(#7)for 10-15 *** examination,the tooth was slightly rotated,with slight tenderness on percussion and grade I mobility but with no caries,pockets or restorations and non-vital pulp(via vitality tests).Radiographic examination revealed unusual configuration of the tooth’s root canals,with an enamel-lined invagination extending to the apex,suggesting the possibility of DI Oehler’s type IIIB and a periapical *** the access cavity lingually revealed one distinct buccal orifice and two distinct palatal orifices;under higher magnification of a dental operating microscope(DOM),the mesio palatal and disto-palatal orifices were observed as connected by a C-shaped *** root canals were prepared with hand K-files following a step-back technique,and obturated using a combination technique of lateral condensation and vertical *** the 6-year follow-up,the patient was asymptomatic,and the periapical radiography displayed significant healing around the apical end of the *** Proper knowledge of unusual root canal anatomy is required in treating *** methods of root canal treatment can successfully resolve such complex cases,facilitated by DOM and cone-beam computed tomography.

关键词： Dens invaginatus Maxillary lateral incisor Three root canals Root canal Anatomy Treatment Case report

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