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On stability behaviors of 5D m-theory black objects

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Communications in Theoretical Physics 2024年第5期76卷 94-101页

作者： adil Belhaj Abderrahim Bouhouch Departement de Physique Equipe des Sciences de la matiere et du rayonnementESMaR Faculte des SciencesUniversite Mohammed V de RabatRabatMorocco

Using N=2 supergravity formalism,we investigate certain behaviors of five-dimensional black objects from the compactification of m-theory on a Calabi-Yau *** manifold has been constructed as the intersection of two homogeneous polynomials of degrees(ω+2,1)and(2,1)in a product of two weighted projective spaces given by WP^(4)(ω,1,1,1,1)×P^(1).First,we determine the allowed electric charge regions of the BPS and non BPS black holes obtained by wrapping m2-branes on appropriate two cycles in such a proposed Calabi-Yau *** that,we calculate the entropy of these solutions which takes a maximal value corresponding to ω=1 defining the ordinary projective space P^(4).For generic values of ω,we show that the non BPS states are ***,we conduct a similar study of five-dimensional black *** the allowed magnetic charge regions of the BPS and non BPS black stringy solutions derived from m5-branes on dual divisors,we calculate the tension taking a minimal value for P^(4).By determining the recombination factor,we show that the non-BPS black string states are stable in the allowed regions in the magnetic charge space.

关键词： m-theory Calabi-Yau manifolds black holes black strings stability behaviors

Experimental study and numerical modeling of the thermal behavior of an industrial prototype ceramic furnace:Energy and environmental optimization

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Energy and Built Environment 2024年第2期5卷 244-254页

作者： Lahcen BALLI mohamed HLImI Youssef ACHENANI adil ATIFI Bachir HAmRI Engineering Sciences and Applications Laboratory(LSIA) National School of Applied Sciences(ENSAH)Abdelmalek Essaadi UniversityTetouanMorocco Faculty of Sciences and Techniques Moulay Ismaïl UniversityP.O.Box 509-BoutalamineErrachidiaMorocco Engineering and Health Sciences and Technologies Research Center M2SMENSAMMohammed.V UniversityRabatMorocco Research Team Quality Maintenance Safety QSMMechanical EngineeringDepartment Mohammadia School of EngineersMohammed V UniversityRabatMorocco

This article focuses on the experimental and numerical study of an industrial prototype furnace intended for the production of ceramics in order to improve the energy efficiency and therefore optimize the fuel consumption and the corresponding carbon dioxide *** order to understand the thermal behavior from which stems the energy efficiency of the experimental prototype,we establish in this work,a simplified modeling allowing to establish a mathematical model describing the thermal behavior of the *** model is able to accurately predict the spatial and temporal distribution of the temperature at each point of the furnace to control the firing of the refractory product so that the final product is of good quality in terms of resistance and *** addition,the power consumed by the prototype must be optimized in order to reduce energy and environmental *** particular,this efficient technology has allowed us to save 83% of energy used in the traditional furnace and to reduce 87.36% of the relative carbon dioxide *** simulation of the mathematical model made it possible to compare the numerical results with the experimental measurements obtained by the prototype as well as to validate the model and to adjust the heat transfer parameters.

关键词： Numerical modeling Thermal behavior Ceramic furnace Refractory materials Energy efficiency

Sex and racial disparities in non-alcoholic fatty liver disease-related cardiovascular events: National inpatient sample analysis (2019)

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World Journal of Cardiology 2024年第3期16卷 137-148页

作者： Rupak Desai Ali Tariq Alvi Advait Vasavada Yashwitha Sai Pulakurthi Bhavin Patel adil Sarvar mohammed Shreyans Doshi Ikechukwu Ogbu Independent Researcher AtlantaGA 30079United States Department of Internal medicine HCA Florida Westside HospitalPlantationFL 33324United States Department of Internal medicine M.P.Shah Medical CollJamnagar 361008India Department of Internal medicine Saint Michael Medical CenterNewarkNJ 07102United States Department of Internal medicine Trinity Health Oakland HospitalPontiacMI 48341United States Department of Internal medicine Central Michigan University College of MedicineSaginawMI 48602United States Department of Internal medicine UCF College of Medicine HCA GME ConsortiumGainesvilleFL 32605United States Department of Internal medicine Mountainview HospitalLas VegasNV 89108United States

BACKGROUND Non-alcoholic fatty liver disease(NAFLD)increases cardiovascular disease(CVD)risk irrespective of other risk ***,large-scale cardiovascular sex and race differences are poorly *** To investigate the relationship between NAFLD and major cardiovascular and cerebrovascular events(mACCE)in subgroups using a nationally representative United States inpatient *** We examined National Inpatient Sample(2019)to identify adult hospitalizations with NAFLD by age,sex,and race using ICD-10-Cm *** and demographic characteristics,comorbidities,and mACCE-related mortality,acute myocardial infarction(AmI),cardiac arrest,and stroke were compared in NAFLD cohorts by sex and *** regression analyses were adjusted for sociodemographic characteristics,hospitalization features,and *** We examined 409130 hospitalizations[median 55(IQR 43-66)years]with *** was more common in females(1.2%),Hispanics(2%),and Native Americans(1.9%)than *** often reported non-elective admissions,medicare enrolment,the median age of 55(IQR 42-67),and poor *** had higher obesity and uncomplicated diabetes but lower hypertension,hyperlipidemia,and complicated diabetes than *** had a median age of 48(IQR 37-60),were medicaid enrollees,and had non-elective *** had greater diabetes and obesity rates than whites but lower hypertension and ***,all-cause mortality,AmI,cardiac arrest,and stroke were all greater in elderly individuals(PmACCE,AmI,and cardiac arrest were more common in men(Pmericans(aOR 1.64)and Asian Pacific Islanders(aOR 1.18)had higher all-cause death risks than *** Increasing age and male sex link NAFLD with adverse mACCE outcomes;Native Americans and Asian Pacific Islanders face higher mortality,highlighting a need for tailored interventions and care.

关键词： Non-alcoholic fatty liver disease Cardiovascular disease major cardiovascular and cerebrovascular events Sex/gender disparities mortality

Conserved Quantities in f(R) Gravity via Noether Symmetry

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Chinese Physics Letters 2012年第8期29卷 33-37页

作者： m.Farasat Shamir adil Jhangeer Akhlaq ahmad Bhatti Department of Sciences&Humanities National University of Computer&Emerging SciencesLahore CampusPakistan

We investigate f(R)gravity using the Noether symmetry *** this purpose,we consider Friedmann Robertson–Walker(FRW)universe and spherically symmetric *** Noether symmetry generators are evaluated for some specific choice of f(R)models in the presence of the gauge ***,we calculate the corresponding conserved quantities in each ***,the importance and stability criteria of these models are discussed.

关键词： symmetry Noether gauge

NUmERICAL SImULATION OF GROUNDWATER DYNAmICS FOR SONGHUAJIANG RIVER VALLEY IN CHINA

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Journal of Hydrodynamics 2004年第3期16卷 332-335页

作者： adil Elkrail College of Water Resources and Environment

The study area was designed and constructed, based on the simplification of aconceptual model, to develop a three-dimensional groundwater flow model for simulation oftwo-layers system. Finite difference groundwater flow model was constructed for the CentralSonghuajiang River alluvial plain in Northeast China, with the coverage of 786. 6km^2. The gridnetworks with a spacing of 474. 4m by 509. 5m were used to cover the model area. The trial-and-errortechnique was used to calibrate the model. The sensitivity of the simulations to the modelparameters was studied -and the most sensitive parameters that controlling the residual headsdistribution in the Songhuajiang River valley were defined.

关键词： groundwater simulation model sensitivity calibration

Hydrodynamic Coefficients and Wave Excitation Forces for A Ship near A Quay

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海洋工程：英文版 2004年第1期18卷 119-128页

作者： m. Hasan adil 段文洋 College of Shipbuilding Engineering

In this paper, the effects of a quay or a solid jetty on hydrodynamic coefficients and vertical wave excitation forces on a ship with or without forward speed are discussed. A modified simple Green function technique is used to calculate the 2D coefficients while the strip theory is used to calculate the 3D coefficients. Wave excitation forces are also calculated with the strip theory. Numerical results are provided for hydrodynamic coefficients and vertical wave excitation forces on a 200 000 DWT tanker ship. It is found that the quay has a considerable effect on the hydrodynamic coefficients and wave excitation forces for a ship.

关键词： hydrodynamic coefficients Green function technique strip theory quay jetty

DC Programming Algorithm for Clusterwise Linear L1 Regression

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Journal of the Operations Research Society of China 2017年第2期5卷 233-256页

作者： adil m.Bagirov Sona Taheri Faculty of Science and Technology Federation University AustraliaBallaratAustralia

The aim of this paper is to develop an algorithm for solving the clusterwise linear least absolute deviations regression *** problem is formulated as a nonsmooth nonconvex optimization problem,and the objective function is represented as a difference of convex *** conditions are derived by using this *** algorithm is designed based on the difference of convex representation and an incremental *** proposed algorithm is tested using small to large artificial and real-world data sets.

关键词： Clusterwise regression Nonsmooth optimization Smoothing Incremental algorithm

Vibrational frequency analysis of finite elastic tube filled with compressible viscous fluid

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Acta mechanica Solida Sinica 2017年第4期30卷 435-444页

作者： Ilyess mnassri adil El Baroudi Arts et métiers ParisTech

The vibrational frequency analysis of finite elastic tube filled with compressible viscous fluid has received plenty of attention in recent years. To apply frequency analysis to defect detection for example, it is necessary to investigate the vibrational behavior under appropriate boundary conditions. In this paper, we present a detailed theoretical study of the three dimensional modal analysis of compressible fluid within an elastic cylinder. The dispersion equations of flexura], torsional and longitudinal modes are derived by elastodynamic theory and the unsteady Stokes equation. The symbolic software mathematica is used in order to find the coupled vibration frequencies. The dispersion equation is deduced and analytically solved. The finite element results are compared with the present method for validation and an acceptable match between them are obtained.

关键词： Frequency analysis Compressible Stokes flow Coupled vibration Elastodynamic

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