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A gated recurrent unit model to predict Poisson’s ratio using deep learning

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Journal of Rock Mechanics and Geotechnical Engineering 2024年第1期16卷 123-135页

作者： Fahd Saeed Alakbari Mysara Eissa Mohyaldinn Mohammed Abdalla Ayoub Ibnelwaleed A.hussein ali Samer Muhsan Syahrir Ridha Abdullah Abduljabbar salih Petroleum Engineering Department Universiti Teknologi PETRONAS32610Bandar Seri IskandarPerakMalaysia Institute of Hydrocarbon Recovery Universiti Teknologi PETRONAS32610Bandar Seri IskandarPerakMalaysia Gas Processing Center College of EngineeringQatar UniversityP.O.Box 2713DohaQatar Department of Chemical Engineering College of EngineeringQatar UniversityP.O.Box 2713DohaQatar Mechanical Engineering Department Universiti Teknologi PETRONAS32610Bandar Seri IskandarPerakMalaysia

Static Poisson’s ratio(vs)is crucial for determining geomechanical properties in petroleum applications,namely sand *** models have been used to predict vs;however,the published models were limited to specific data ranges with an average absolute percentage relative error(AAPRE)of more than 10%.The published gated recurrent unit(GRU)models do not consider trend analysis to show physical *** this study,we aim to develop a GRU model using trend analysis and three inputs for predicting n s based on a broad range of data,n s(value of 0.1627-0.4492),bulk formation density(RHOB)(0.315-2.994 g/mL),compressional time(DTc)(44.43-186.9 μs/ft),and shear time(DTs)(72.9-341.2μ s/ft).The GRU model was evaluated using different approaches,including statistical error *** GRU model showed the proper trends,and the model data ranges were wider than previous *** GRU model has the largest correlation coefficient(R)of 0.967 and the lowest AAPRE,average percent relative error(APRE),root mean square error(RMSE),and standard deviation(SD)of 3.228%,1.054%,4.389,and 0.013,respectively,compared to other *** GRU model has a high accuracy for the different datasets:training,validation,testing,and the whole datasets with R and AAPRE values were 0.981 and 2.601%,0.966 and 3.274%,0.967 and 3.228%,and 0.977 and 2.861%,*** group error analyses of all inputs show that the GRU model has less than 5% AAPRE for all input ranges,which is superior to other models that have different AAPRE values of more than 10% at various ranges of inputs.

关键词： Static Poisson’s ratio Deep learning Gated recurrent unit(GRU) Sand control Trend analysis Geomechanical properties

Multiclass Classification for Cyber Threats Detection on Twitter

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Computers, Materials & Continua 2023年第12期77卷 3853-3866页

作者： Adnan hussein Abdulwahab ali Almazroi College of Computer Science and Engineering Department of Computer ScienceAL-Ahgaff UniversityMukallaYemen College of Computing and Information Technology at Khulais Department of Information TechnologyUniversity of JeddahJeddahSaudi Arabia

The advances in technology increase the number of internet systems *** a result,cybersecurity issues have become more *** threats are one of the main problems in the area of ***,detecting cybersecurity threats is not a trivial task and thus is the center of focus for many researchers due to its *** study aims to analyze Twitter data to detect cyber threats using a multiclass classification *** data is passed through different tasks to prepare it for the *** Frequency and Inverse Document Frequency(TFIDF)features are extracted to vectorize the cleaned data and several machine learning algorithms are used to classify the Twitter posts into multiple classes of cyber *** results are evaluated using different metrics including precision,recall,F-score,and *** work contributes to the cyber security research *** experiments revealed the promised results of the analysis using the Random Forest(RF)algorithm with(F-score=81%).This result outperformed the existing studies in the field of cyber threat detection and showed the importance of detecting cyber threats in social media *** is a need for more investigation in the field of multiclass classification to achieve more accurate *** the future,this study suggests applying different data representations for the feature extraction other than TF-IDF such as Word2Vec,and adding a new phase for feature selection to select the optimum features subset to achieve higher accuracy of the detection process.

关键词： Cybersecurity cyber threat detection artificial intelligence machine learning Twitter

Public perception of connected and automated vehicles:Benefits,concerns,and barriers from an Australian perspective

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Journal of Intelligent and Connected Vehicles 2024年第2期7卷 108-128页

作者： ali Matin hussein Dia Department of Civil and Construction Engineering Swinburne University of TechnologyMelbourne 3122Australia

This study investigates the attitudes and concerns of the Australian public toward connected and autonomous vehicles(CAVs),and the factors influencing their willingness to adopt this *** a comprehensive survey,a diverse group of respondents provided valuable insights toward various CAV scenarios such as riding in a vehicle with no driver,self-driving public transport,self-driving taxis,and heavy vehicles without *** results highlight the significant impact of safety concerns about automated vehicles on individuals’attitudes across all *** levels of concern were associated with more negative attitudes,and a strong correlation between concerns and opposition underlines the necessity of addressing these apprehensions to build public trust and promote CAV ***,nearly 70%of respondents felt uncomfortable driving next to a CAV,but they displayed more confidence in adopting automated public transport in the near ***,around 40%of participants indicated a strong willingness to purchase a CAV,primarily driven by the desire to reduce their carbon footprint and safety ***,respondents with health conditions or disability exhibited heightened interest(almost double those without health conditions)in CAV *** differences emerged in attitudes and preferences toward CAVs,with women expressing a greater level of concern and perceiving higher barriers to CAV *** emphasizes the importance of employing targeted approaches to address the specific concerns of different *** study also underscores the role of trust in technology as a significant barrier to CAV deployment,ranking high among respondents’*** overcome these challenges and facilitate successful CAV deployment,various strategies are suggested,including live demonstrations,dedicated routes for automated public transport,adoption incentives,and addressing liability *** findings from this st

关键词： connected and automated vehicles(CAVs) autonomous vehicles public acceptance stakeholder consultations road safety

A Review and Bibliometric Analysis of the Current Studies for the 6G Networks

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Computer Modeling in Engineering & Sciences 2024年第9期140卷 2165-2206页

作者： Qusay M.salih Md.Arafatur Rahman Ahmad Firdaus Mohammed Rajih Jassim Hasan Kahtan Jasni Mohamad Zain Ahmed hussein ali Faculty of Computing Universiti Malaysia Pahang Al-Sultan Abdullah(UMPSA)PekanPahang26600Malaysia Department of Medical Equipment Technology Engineering Al Salam University CollegeBaghdadIraq School of Mathematics and Computer Science University of WolverhamptonWolverhampton01902UK Department of Production Engineering and Metallurgy University of TechnologyBaghdadIraq Cardiff School of Technologies Cardiff Metropolitan UniversityCardiffCF52YBUK Institute for Big Data Analytics and Artificial Intelligence(IBDAAI) Kompleks Al-KhawarizmiUniversiti Teknologi MARAShah AlamSelangor40450Malaysia Department Computer Science Al-Salam University CollegeBaghdadIraq

The race to develop the next generation of wireless networks,known as Sixth Generation(6G)wireless,which will be operational in 2030,has already *** realize its full potential over the next decade,6G will undoubtedly necessitate additional improvements that integrate existing solutions with cutting-edge ***,the studies about 6G are mainly limited and scattered,whereas no bibliometric study covers the 6G ***,this study aims to review,examine,and summarize existing studies and research activities in *** study has examined the Scopus database through a bibliometric analysis of more than 1,000 papers published between 2017 and ***,we applied the bibliometric analysis methods by including(1)document type,(2)subject area,(3)author,and(4)country of *** study’s results reflect the research 6G community’s trends,highlight important research challenges,and elucidate potential directions for future research in this interesting area.

关键词： 6G bibliometric wireless networks review

The Response of the Earth's Lower Ionosphere to Gamma-Ray Solar Flares and their Associated X-ray

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Research in Astronomy and Astrophysics 2022年第4期22卷 137-152页

作者： Mahmoud Mohery hussein M.Farid Alaa ali Dept.of Phys College of ScienceUniversity of JeddahJeddahSaudi Arabia Astronomy Space Science&Meteorology DepartmentFaculty of ScienceCairo UniversityGiza 12613Egypt Astronomy Dept. Faculty of ScienceKing Abdulaziz University21589 JeddahSaudi Arabia

The present work aims to explore the impact of solar gamma-ray fiares(GRFs),detected by the Fermi-Large Area Telescope(LAT),and their associated X-ray fiares(XRFs)on the Earth’s lower *** data of ionospheric parameter fmin were collected from the Yamagawa mid-latitude ionosonde station in *** most of the GRFs used in this study are associated with soft X-ray(SXR)emissions,detected by the Geostationary Operational Environmental Satellite(GOES),we classified them into three types:simultaneous(S),delayed(D)and not associated(N),refiecting the phase occurrence of the solar ***,the ionospheric D layer responds strongly to XRFs more than *** temporal profiles of the ionospheric parameter fmin show distinct behaviors as a response to the various GRF *** the case of the S-type,a single strong peak,with an average value of 5.2 MHz,emanates in the fmin profile within an average interval of time of less than half an *** the case of the D-type,two successive peaks appear in the fmin profile,with an average value of 6.0 MHz for the second peak through a time interval of one hour after the onset of gamma-ray(GR)*** response of the fmin parameter to the N-type fiares appears as a single peak with an average value of 4.8 MHz within about an *** notice that the difference between the fmin peak values and the corresponding reference ones(dfmin)is more convenient and representative than the fmin values,where the median GR fiux of the S-,D-and N-types tends to increase as the average dfmin increases.

关键词： Sun:X-rays gamma-rays Earth:ionosphere satellites

Modeling of microreactor for syngas production by catalytic partial oxidation of methane

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Journal of Natural Gas Chemistry 2010年第6期19卷 660-668页

作者： Akbar Zamaniyan alireza Behroozsarand Hamid Mehdizadeh hussein ali Ghadirian Department of Natural Gas Conversion Gas Research DivisionResearch Institute of Petroleum Industry (RIPI)Tehran 14665-1998Iran Department of Chemical Engineering Islamic Azad UniversityIlkhchi BranchIlkhchiTabriz 53581-1148Iran Department of Chemical Engineering NTNUTrondheimNO-7491Norway

Fixed-bed reactors for the catalytic partial oxidation of methane （CPOM） to produce synthesis gas still pose hot spots *** is a good alternative reactor proposed to resolve these *** this paper,synthesis gas （hydrogen and carbon monoxide） production was investigated by a two-dimensional numerical model of single *** fluid dynamic （CFD） modeling with detailed chemistry was conducted to understand the CPOM on platinum （Pt） *** inlet velocity,microchannel pressure,and fuel to air ratio （F/A） are selected as the effective parameters on microchannel *** results show that Reynolds number has considerable effect on methane conversion,hydrogen to carbon monoxide ratio （H2/CO）,and product *** gas inlet velocity causes all the above parameters to *** is noted that increasing microchannel pressure and decreasing the ratio of fuel to air cause the decrease of the H2/CO ratio.

关键词： synthesis gas microchannel catalytic partial oxidation of methane reynolds number

Accurate surface potential determination in Schottky diodes by the use of a correlated current and capacitance voltage *** to n-InP

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Journal of Semiconductors 2011年第10期32卷 39-43页

作者： ali Ahaitouf Abdelaziz Ahaitouf Jean Paul Salvestrini hussein Srour Laboratoire Signaux Systemes et Composants DGE Faculty of Sciences and TechnologyUniversite Sidi Mohammed Ben AbdellahP.O.Box 2202FES Morocco LIMAO Faculte polydisciplinaire de Taza Universite Sidi Mohammed Ben Abdellah de FesBP 1223 Taza-GareMorocco Laboratoire Materiaux Optiques Photonique et SystemesEA 4423Universite Paul Verlaine-MetzSupelec2 rue E.Belin57070 MetzFrance

Based on current voltage（I-Vg） and capacitance voltage（C-Vg） measurements,a reliable procedure is proposed to determine the effective surface potential Vd（Vg） in Schottky *** the framework of thermionic emission,our analysis includes both the effect of the series resistance and the ideality factor,even voltage dependent. This technique is applied to n-type indium phosphide（n-InP） Schottky diodes with and without an interfacial layer and allows us to provide an interpretation of the observed peak on the C-Vg *** study clearly shows that the depletion width and the flat band barrier height deduced from C-Vg,which are important parameters directly related to the surface potential in the semiconductor,should be estimated within our approach to obtain more reliable information.

关键词： Schottky diode interface states surface potential ideality factor barrier height capacitance voltage current measurements

Environmental Isotopic Characterization of Groundwater and Surface Water in Northeast Missan Province,South Iraq

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Acta Geologica Sinica(English Edition) 2014年第4期88卷 1227-1238页

作者： hussein Badr GHaliB ali Riza SGüT Selcuk University college of EngineeringGeology DepartmentSelcukTurkey Basrah University Geology DepartmentBasrahIraq

The present work studies the environmental isotopes assess groundwater characteristics of the different parts of the main aquifer in the northeast Missan Province in south of Iraq. Water samples of groundwater and surface water were collected for two dry and wet seasons during the water year of 2011-2012. The study shows that most of the groundwater in the aquifer falls above the global meteoric water line, and all the samples fall below the Mediterranean meteoric water line, indicating that these samples are a mixture of two water types. The tritium content of these samples supports this conclusion. The overall conclusion of this study indicates that there are two sources of groundwater recharge in the studied area： the ephemeral streams （Teeb and Dewerge） and major precipitation sources. According to the tritium levels at or below one tritium unit （TU） obtained from the water, supply wells are highly confined or ＂not vulnerable＂. Overall, the 3^H results imply that recent recharge has taken place during the last four to five decades. In the recharge area, the high tritium content in the southern part of the Teeb area suggests that the recharge originates from rapid infiltration of surface runoff. Therefore, the groundwater resources in the study area should be protected from contamination, because it will influence the aquifer in a relatively short period of time if any contamination enters the recharge areas of the aquifer.

关键词： Groundwater recharge Tritium environmental isotope meteoric water line Iraq

Electroexcitation of Low-Lying Particle-Hole RPA States of ^(16)O with WBP Interaction

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Communications in Theoretical Physics 2014年第12期61卷 839-846页

作者： ali H.Taqi R.A.Radhi Adil M.hussein Department of Physics College of Science Kirkuk University Department of Physics College of Science University of Baghdad Department of Physics College of Science University of Sulaimani

The nuclear structure of 16 O is studied in the framework of the particle–hole random phase approximation(ph RPA). The Hamiltonian is diagonalized within a model space with particle orbits {1d5/2,1d3/2, and 2s1/2} and the hole orbits {1p3/2and 1p1/2} using Warburton and Brown interaction WBP. The ph RPA calculations are tested, by comparing the electron scattering form factors with the available experimental data. The results of electron scattering form factors and reduced transition strength for the states: 1-, T = 0(7.116 Me V); 2-, T = 1(12.968 Me V); 2-, T = 1(20.412 Me V); and 3-, T = 0(6.129 Me V) are interpreted in terms of the harmonic-oscillator(HO) wave functions of size parameter b. The occupation probabilities of the single particle and hole orbits are calculated. The spurious states are removed by adding the center of mass(CM) correction to the nuclear Hamiltonian. A comparison with the available experiments data is presented.

关键词： random-phase approximation collective excitations and electromagnetic form factors