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TG-SMR:AText Summarization Algorithm Based on Topic and Graph Models

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Computer Systems Science & Engineering 2023年第4期45卷 395-408页

作者： mohamed ali Rakrouki Nawaf Alharbe Mashael Khayyat Abeer Aljohani Applied College Taibah UniversityMedina42353Saudi Arabia College of Computer Science and Engineering University of JeddahJeddah21959Saudi Arabia

Recently,automation is considered vital in most fields since computing methods have a significant role in facilitating work such as automatic text ***,most of the computing methods that are used in real systems are based on graph models,which are characterized by their simplicity and ***,this paper proposes an improved extractive text summarization algorithm based on both topic and graph *** methodology of this work consists of two ***,the well-known TextRank algorithm is analyzed and its shortcomings are ***,an improved method is proposed with a new computational model of sentence *** experimental results were carried out on standard DUC2004 and DUC2006 datasets and compared to four text summarization ***,through experiments on the DUC2004 and DUC2006 datasets,our proposed improved graph model algorithm TG-SMR(Topic Graph-Summarizer)is compared to other text summarization *** experimental results prove that the proposed TG-SMR algorithm achieves higher ROUGE *** is foreseen that the TG-SMR algorithm will open a new horizon that concerns the performance of ROUGE evaluation indicators.

关键词： Natural language processing text summarization graph model topic model

Ba substitution for enhancement of the thermoelectric properties of LaCoO_(3) ceramics(0≤x≤0.75)

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Journal of Advanced Ceramics 2019年第4期8卷 519-526页

作者： mohamed ali BOUSNINA Fabien GIOVANNELLI Loic PERRIERE Guillaume GUEGAN Fabian DELORME Université Francois Rabelais de Tours CNRSINSA CVLGREMAN UMR7347IUT de Blois15 rue de la chocolaterieCS2903F-41029 Blois CedexFrance UniversitéParis 13 Sorbonne Paris CiteLaboratoire des Sciences des Procédés et des MatériauxCNRSUPR 340799 avenue J.B.ClémentF-93430 VilletaneuseFrance Institut de Chimie et des Matériaux Paris-Est UMR 7182 CNRS-UPEC2-8 Rue Henri Dunant94320 ThiaisFrance ST Microelectronics 16 Rue Pierre et Marie CurieTours 37100France

In the present work, dense perovskite ceramics were successfully prepared from a series of La1-xBaxCoO3 solid solutions in the range of substitution 0 ≤ x ≤ 0.75 using solid state reaction and conventional sintering. Structural properties of La1-xBaxCoO3 were systematically investigated and thermoelectric properties were measured in the temperature range of 330–1000 K. The results show that the thermoelectric properties of Ba-substituted LaCoO3 depend on x. Indeed, at 330 K, electrical conductivity presents an optimum value for x = 0.25 with a value of σmax ≈ 2.2×105 S·m–1 whereas the Seebeck coefficient decreases when x and/or the temperature increases. The Ba-substituted LaCoO3 samples exhibit p-type semiconducting behaviour. The best power factor value found is 3.4×10–4 W·m–1·K–2 at 330 K for x = 0.075, which is 10% higher than the optimum value measured in La1–xSrxCoO3 for x = 0.05. The thermal diffusivity and thermal conductivity increase with increasing temperature and Ba concentration. La1-xBaxCoO3 shows a maximum figure of merit(ZT = 0.048) for x = 0.05 at 330 K, 25% higher than the best value in La1–xSrxCoO3 compounds.

关键词： perovskite Ba-substituted LaCoO_(3) oxide thermoelectric p-type semiconductor

A Multi-Level Threshold Method for Edge Detection and Segmentation Based on Entropy

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Computers, Materials & Continua 2020年第4期63卷 1-16页

作者： mohamed A.El-Sayed Abdelmgeid A.ali mohamed E.Hussien Hameda A.Sennary Department of Mathematics Faculty of ScienceFayoum UniversityFayoumEgypt.CurrentlyComputer Science DepartmentTaif UniversityTaifSaudi Arabia Computer Science Department Faculty of Computers and Information Minia UniversityMiniaEgypt Department of Mathematics Faculty of ScienceAswan UniversityAswanEgypt

The essential tool in image processing,computer vision and machine vision is edge detection,especially in the fields of feature extraction and feature *** is a basic area in information *** entropy,in image processing field has a role associated with image *** an initial step in image processing,the entropy is always used the image’s segmentation to determine the regions of image which is used to separate the background and objects in *** segmentation known as the process which divides the image into multiple regions or sets of *** applications have been development to enhance the image *** paper utilizes the Shannon entropy to achieve edge detection process and segmentation of the *** introduces a new method of edge detection for 2-D histogram and Shannon entropy based on multilevel *** method utilizes the gray value and the average gray value of the pixels to achieve the two dimensional *** current method has apriority in comparison to some upper classical *** experimental results exhibited that the proposed method could capture a moderate quality and execution time better than other comparative methods,particularly in the largest images *** proposed method offers good results when applied with images of different sizes from the civilization of ancient Egyptians.

关键词： Multi-level threshold edge detection 2D histogram entropy

Investigation of new solutions for an extended(2+1)-dimensional Calogero-Bogoyavlenskii-Schif equation

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Frontiers of Mathematics in China 2021年第4期16卷 925-936页

作者： mohamed R.ali R.SADAT Wen-Xiu MA Department of Mathematics Faculty of EngineeringBenha UniversityEgypt Department of Mathematics Zagazig Faculty of EngineeringZagazig UniversityZagazigEgypt Department of Mathematics Zhejiang Normal UniversityJinhua 321004China Department of Mathematics King Abdulaziz UniversityJeddah 21589Saudi Arabia Department of Mathematics and Statistics University of South FloridaTampaFL33620-5700USA School of Mathematics South China University of TechnologyGuangzhou 510640China School of Mathematical and Statistical Sciences North-West UniversityMafikeng CamusPrivate Bag X2046Mmabatho 2735South Africa

We investigate and concentrate on new infinitesimal generators of Lie symmetries for an extended(2+1)-dimensional Calogero-Bogoyavlenskii-Schif(eCBS)equation using the commutator table which results in a system of nonlinear ordinary differential equations(ODEs)which can be manually *** two stages of Lie symmetry reductions,the eCBS equation is reduced to non-solvable nonlinear ODEs using different combinations of optimal Lie *** the integration method and the Riccati and Bernoulli equation methods,we investigate new analytical solutions to those *** substituting to the original variables generates new solutions to the eCBS *** results are simulated through three-and two-dimensional plots.

关键词： Extended Calogero-Bogoyavlenskii-Schif(eCBS)equation Riccati-Bernoulli equation symmetry analysis integrating factor nonlinear integrable equations

Hydraulic and volume change behaviors of compacted highly expansive soil under cyclic wetting and drying

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Journal of Rock Mechanics and Geotechnical Engineering 2023年第2期15卷 486-499页

作者： mohamed Farid Abbas Abdullah ali Shaker Mosleh A.Al-Shamrani Civil Engineering Department College of EngineeringPrince Sattam bin Abdulaziz UniversityAl KharjSaudi Arabia Soil Mechanics and Geotechnical Engineering Research Institute Housing and Building National Research Center(HBRC)GizaEgypt Bugshan Research Chair in Expansive Soils Civil Engineering DepartmentCollege of EngineeringKing Saud UniversityRiyadhSaudi Arabia

The wide engineered application of compacted expansive soils necessitates understanding their behavior under field *** results of this study demonstrate how seasonal climatic variation and stress and boundary conditions individually or collectively influence the hydraulic and volume change behavior of compacted highly expansive *** cyclic wetting and drying(CWD)process was applied for two boundary conditions,*** stress(CS)and constant volume(CV),and for a wide range of axial stress *** adopted CWD process affected the hydraulic and volume change behaviors of expansive soils,with the first cycle of wetting and drying being the most *** CWD process under CS conditions resulted in shrinkage accumulation and reduction in saturated hydraulic conductivity(k sat).On the other hand,CWD under CV conditions caused a reduction of swell pressure while has almost no impact on k *** elastic response to CWD was achieved after the third cycle for saturated hydraulic conductivity(k sat),the third to fourth cycle for the volume change potential under the CV conditions,and the fourth to fifth cycle for the volume change potential under the CS ***,both swell pressure(s s)and saturated hydraulic conductivity(k sat)are not fundamental parameters of the expansive soil but rather depend on stress,boundary and wetting conditions.

关键词： Expansive soils Hydraulic conductivity Volume change potential Cyclic wetting and drying(CWD) Swell pressure

TiO_2–PANI/Cork composite: A new floating photocatalyst for the treatment of organic pollutants under sunlight irradiation

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Journal of Environmental Sciences 2017年第10期29卷 3-13页

作者： Mouheb Sboui mohamed Faouzi Nsib ali Rayes Meenakshisundaram Swaminathan Ammar Houas Laboratory CI-Sfax Faculty of Science University of Sfax URCMEP (UR11ES85) Faculty of Sciences University of Gabès National School of Engineers (ENIG) University of Gabès High School of Sciences and Technology of Hammam Sousse University of Sousse Nanomaterials Laboratory International Research Centre Kalasalingam University Al Imam Mohammad Ibn Saud Islamic University (IMSIU) College of Sciences Department of Chemistry

A novel photocatalyst based on TiO2-PANI composite supported on small pieces of cork has been reported. It was prepared by simple impregnation method of the polyaniline（PANI）-modified TiO2 on cork. The TiO2-PANI/Cork catalyst shows the unique feature of floating on the water surface. The as-synthesized catalyst was characterized by X-ray diffraction（XRD）,scanning electron micrograph（SEM）, transmission electron microscopy（TEM）, thermogravimetric analysis（TGA）, Fourier transform infrared spectroscopy（FT-IR）, UV-vis diffuse reflectance spectra（UV-vis DRS） and the Brunauer-Emmett-Teller（BET） surface area analysis. Characterization suggested the formation of anatase highly dispersed on the cork surface. The prepared floating photocatalyst showed high efficiency for the degradation of methyl orange dye and other organic pollutants under solar irradiation and constrained conditions, i.e., no-stirring and no-oxygenation. The TiO2-PANI/Cork floating photocatalyst can be reused for at least four consecutive times without significant decrease of the degradation efficiency.

关键词： TiO2 Polyaniline Cork Floating catalyst Photodegradation Solar light

Satisfactory Model Predictive Control for a Hybrid Single-phase Seven-level Converter

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CSEE Journal of Power and Energy Systems 2021年第5期7卷 1102-1112页

作者： mohamed Tamim Touati Shaoyuan Li Jing Wu Muhammad ali Muhammad Mansoor Khan Department of Automation SEIEEShanghai Jiao Tong UniversityShanghai 200240China Department of Electrical Engineering.SEIEE Shanghai Jiao Tong UniversityShanghai 200240China.

Today,many hybrid multilevel converters with flying capacitors are being *** the practicality of these converters in reducing the switching devices count and the cost,it is challenging to balance their capacitor voltage *** unbalanced capacitors restrain the converters’performance and lead to failure in delivering the required *** paper proposes a model predictive control(MPC)for a seven-level converter based on an active neutral point clamped converter cascaded with an H-bridge.A conventional MPC uses a single cost function with two terms,one for current tracking and the other for capacitor balancing,which needs an accurate weighting factor to balance *** this work,the suggested MPC adopts a satisfactory optimization *** evaluates the capacitor charge membership to a nominal voltage range to define the degree of freedom in which to optimize the current tracking *** transforms the relationship between the two cost terms into a more collaborative *** proposed MPC improves the output current quality and balances the capacitor charge with the least number of *** and simulation results have validated the controller^effectiveness.

关键词： Hybrid converter model predictive control multilevel converter satisfactory optimization

Prevalence of retinopathy of prematurity in Brunei Darussalam

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International Journal of Ophthalmology(English edition) 2013年第3期6卷 381-384页

作者： Nadir ali mohamed ali Joshua George Nayan Joshi Elizabeth Chong Department of Ophthalmology RIPAS Hospital Department of Neonatology RIPAS Hospital

AIM: To identify the prevalence of retinopathy of prematurity (ROP) among preterm neonates admitted to Department of Neonatology, RIPAS hospital, Brunei Darussalam. ·METHODS: We studied 67 preterm infants fulfilling the eligibility criteria for ROP screening. All infants studied were admitted to the Department of Neonatology, RIPAS Hospital, within a period of one year. Birth weight (BW), gestational age (GA), corrected age at each review, initial and final diagnoses and number of reviews required was recorded for each infant. Infants were followed up two weekly until they reach a corrected age of 40 weeks or complete vascularization was noted. Prevalence of ROP was identified. Descriptive analysis, regression analysis and independent-sample t-test were used to statistically check for differences between ROP and non -ROP groups. ·RESULTS: A total number of 201 ROP screenings were carried out for 67 preterm infants. Males outnumbered females (56.7%). The mean number of reviews per child was (3.19 ±1.1) times (range: 1 -6 times), the mean GA among the preterm babies examined was (29.5 ±2.6) weeks (range: 23 -36 weeks), and the mean BW was 1300 ±500g (range: 660 -3600g). The prevalence of ROP among the examined infants was 34.8% . Prevalence of threshold disease that required laser treatment was 25.4% . Prevalence of ROP among those with extremely low BW was 86.7% compared to 27.8% in those with very low BW. Respiratory distress and congenital heart diseases were significantly associated with higher incidence of ROP. ·CONCLUSION: Lower BW, lower GA and female gender are associated with higher risk of developing ROP among preterm infants in Brunei Darussalam.

关键词： retinopathy of prematurity preterm very low birth weight extremely low birth weight

A Deep Learning Ensemble Method for Forecasting Daily Crude Oil Price Based on Snapshot Ensemble of Transformer Model

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Computer Systems Science & Engineering 2023年第7期46卷 929-950页

作者： Ahmed Fathalla Zakaria Alameer mohamed Abbas Ahmed ali Department of Mathematics Faculty of ScienceSuez Canal UniversityIsmailia41522Egypt Mining and Petroleum Department Faculty of EngineeringAl-Azhar UniversityQenaEgypt School of Computer Science and Technology Central South UniversityChangshaHunanChina College of Computer Engineering and Sciences Prince Sattam Bin Abdulaziz UniversityAl-Kharj11942Saudi Arabia Higher Future Institute for Specialized Technological Studies Cairo3044Egypt

The oil industries are an important part of a country’s *** crude oil’s price is influenced by a wide range of ***,how accurately can countries predict its behavior and what predictors to employ are two main *** this view,we propose utilizing deep learning and ensemble learning techniques to boost crude oil’s price forecasting *** suggested method is based on a deep learning snapshot ensemble method of the Transformer *** examine the superiority of the proposed model,this paper compares the proposed deep learning ensemble model against different machine learning and statistical models for daily Organization of the Petroleum Exporting Countries(OPEC)oil price *** results demonstrated the outperformance of the proposed method over statistical and machine learning *** precisely,the proposed snapshot ensemble of Transformer method achieved relative improvement in the forecasting performance compared to autoregressive integrated moving average ARIMA(1,1,1),ARIMA(0,1,1),autoregressive moving average(ARMA)(0,1),vector autoregression(VAR),random walk(RW),support vector machine(SVM),and random forests(RF)models by 99.94%,99.62%,99.87%,99.65%,7.55%,98.38%,and 99.35%,respectively,according to mean square error metric.

关键词： Deep learning ensemble learning transformer model crude oil price