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Chinese Journal of structural Chemistry 2019年第3期38卷 448-463页

作者： mUHAmmAD Nadeem Arshad HAssAN m.Faidallah ABDULLAH m.Asiri OsmAN I.Osman faisal m.s.aqlan Chemistry Department Faculty of Science King Abdulaziz University Centre of Excellence for Advanced materials Research (CEAmR) King Abdulaziz University Department of Chemistry University of Jeddah Department of Chemistry University of IBB

Pyridinone derivatives are of great interest in medicinal chemistry where they were found to be potent to various diseases. Their metal complexes added more value to their applications. Here, we have synthesized two 2-pyridinone derivatives(3-cyano-4-(4-hydroxy-3-methoxyphenyl)-6-phenyl-2(1 H)-pyridinone and 3-cyano-4-chlorophenyl-6-(4-tolyl)-2(1 H)-pyridinone) using one-pot multicomponent system. They were well characterized using spectroscopic techniques like nuclear magnetic resonance(NmR-1 H & 13 C), Fourier transform infrared(FT-IR) and UV/Vis spectroscopy. The final structures were determined using single-crystal X-ray diffraction technique which helps us to determine their geometries. Density functional theory(DFT) and time-dependent density functional theory(TD-DFT) with suitable basis-sets of calculations have correctly simulated these spectroscopic parameters. The intramolecular charge transfer(ICT) of both substrates has been discussed using natural bond orbital(NBO) technique. molecular electrostatic potential(mEP) surfaces showed their reactive locations for intermolecular charge transfer. Compared to p-nitroaniline(pNA), both substrates were shown to have substantial molecular hyperpolarizability.

关键词： crystal structures NBO one-pot multicomponent system 2-pyridinone TD-DFT

Three-body Faddeev calculations for _(ΛΛ)^(6)He and _(ΩΩ)^(6)He hypernuclei

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Chinese Physics C 2022年第10期46卷 147-155页

作者： faisal Etminan m.R.Hadizadeh Department of Physics Faculty of SciencesUniversity of BirjandBirjand 97175-615Iran College of Engineering ScienceTechnology and AgricultureCentral State UniversityWilberforceOH45384USA Department of Physics and Astronomy Ohio UniversityAthensOH45701USA

We study the ground-state properties of the _(YY)^(6)He double hyperon for _(ΛΛ)^(6)He and _(ΩΩ)^(6)He nuclei in a threebody model(Y+Y+α).We solve two coupled Faddeev equations corresponding to the three-body configurations(αY,Y)and(YY,α)in configuration space with the hyperspherical harmonics expansion method by employing the most recent hyperon-hyperon interactions obtained from lattice QCD *** numerical analysis for _(ΛΛ)^(6)He,using threeΛΛlattice interaction models,leads to a ground state binding energy in the(-7.468,-7.804)meV domain and the separations and in the domains of(3.555,3.629)fm and(2.867,2.902)fm,*** binding energy of the double-Ω hypenucleus _(ΩΩ)^(6)He leads to -67.21 meV and consequently to smaller separations =1.521 fm and =1.293 *** addition to geometrical properties,we study the structure of ground-state wave functions and show that the main contributions are from the s-wave *** results are consistent with the existing theoretical and experimental data.

关键词： ΩΩ(^(1)s_(0))potential multi-strangeness nucleus cluster model hyperspherical harmonics

mesoporous WO_3-graphene photocatalyst for photocatalytic degradation of methylene Blue dye under visible light illumination

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Journal of Environmental sciences 2018年第4期30卷 328-337页

作者： Adel A.Ismail m.faisal Adel Al-Haddad Wastewater Treatment and Reclamation Technologies (WTRT) Water Research Center Kuwait Institute for Scientific Research Advanced materials and Nano-Research Centre Najran University

Advanced oxidation technologies are a friendly environmental approach for the remediation of industrial wastewaters. Here, one pot synthesis of mesoporous WO3 and WO3-graphene oxide（GO） nanocomposites has been performed through the sol–gel method. Then, platinum（Pt） nanoparticles were deposited onto the WO3 and WO3-GO nanocomposite through photochemical reduction to produce mesoporous Pt/WO3 and Pt/WO3-GO nanocomposites. X-ray diffraction（XRD） findings exhibit a formation of monoclinic and triclinic WO3 phases. Transmission Electron microscope（TEm） images of Pt/WO3-GO nanocomposites exhibited that WO3 nanoparticles are obviously agglomerated and the particle sizes of Pt and WO3 are ~ 10 nm and 20–50 nm, respectively. The mesoporous Pt/WO3 and Pt/WO3-GO nanocomposites were assessed for photocatalytic degradation of methylene Blue（mB） as a probe molecule under visible light *** findings showed that mesoporous Pt/WO3, WO3-GO and Pt/WO3-GO nanocomposites exhibited much higher photocatalytic efficiencies than the pure WO3. The photodegradation rates by mesoporous Pt/WO3-GO nanocomposites are 3, 2 and 1.15 times greater than those by mesoporous WO3, WO3-GO, and Pt/WO3, respectively. The key factors of the enhanced photocatalytic performance of Pt/WO3-GO nanocomposites could be explained by the highly freedom electron transfer through the synergetic effect between WO3 and GO sheets, in addition to the Pt nanoparticles that act as active sites for O2 reduction, which suppresses the electron hole pair recombination in the Pt/WO3-GO nanocomposites.

关键词： mesoporous Pt/WO3 nanocomposites Graphene oxide methylene Blue photodegradation Visible light

sensitive and fast response ethanol chemical sensor based on as-grown Gd_2O_3 nanostructures

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Journal of Rare Earths 2015年第2期33卷 214-220页

作者： m.m.Abdullah mohammed m.Rahman Houcine Bouzid m.faisal sher Bahadar Khan s.A.Al-sayari Adel A.Ismail Promising Centre for sensors and Electronic Devices (PCsED) College of Science and Arts Najran University P.O. Box-1988Najran 11001 Saudi Arabia Center of Excellence for Advanced materials Research (CEAmR) & Chemistry Department King Abdulaziz University P.O. Box 80203Jeddah 21589 Saudi Arabia Laboratory of Ferroelectric materials Faculty of Sciences of Sfax Route Soukra Km 35B.P. 802 F-3018 Sfax Tunisia College of science and Arts-sharoura Najran University P.O. Box-1988Najran 11001 Saudi Arabia Central metallurgical Research and Development Institute (CmRDI) P.O.Box: 87 Helwan 11421 Cairo Egypt

Well crystalline gadolinium oxide（Gd2O3） nanostructures were grown by annealing the hydrothermally as-prepared nanostructures without using any template. microscopic studies of Gd2O3 nanostructures were recorded along the [111] direction due to the clearly resolved interplanar distance d（222）-0.31 nm of the cubic crystal structure Gd2O3. sensing mechanism of Gd2O3 as efficient electron mediator for the detection of ethanol was explored. As-fabricated sensor demonstrated the high-sensitivity of -0.266 μAm/m/cm2 with low detection limit（-52.2 μmol/L） and correlation coefficient（r^2, 0.618）. To the best of our knowledge, this was the first report for the detection of ethanol using as-grown（at 1000 oC） Gd2O3 nanostructures by simple and reliable Ⅰ-Ⅴ technique and rapid assessment of the reaction kinetics（in the order of seconds）. The low cost of the starting reagents and the simplicity of the synthetic route made it a promising chemical sensor for the detection of various toxic analytes, which are not environmentally safe.

关键词： growth Gd2O3 nanostructures ethanol Ⅰ-Ⅴ technique chemical sensing rare earths

management of nonalcoholic fatty liver disease in the middle East

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World Journal of Gastroenterology 2020年第25期26卷 3528-3541页

作者： faisal m sanai faisal Abaalkhail Fuad Hasan muhammad Hamed Farooqi Nawal Al Nahdi Zobair m Younossi Gastroenterology Unit Department of MedicineKing Abdulaziz Medical CityJeddah 21423Saudi Arabia Department of medicine Alfaisal UniversityRiyadh 11533Saudi Arabia Department of Liver Transplant King Fahad Specialist HospitalDammam 32253Saudi Arabia Department of Internal medicine Faculty of MedicineKuwait UniversitySafat 13110Kuwait Dubai Diabetes Center Dubai Health AuthorityDubai 00000United Arab Emirates Department of Gastroenterology and Hepatology Dubai Health AuthorityRashid hospitalDubai 00000United Arab Emirates Department of medicine Inova Fairfax Medical CampusFalls ChurchVA 22042United States

The prevalence of nonalcoholic fatty liver disease(NAFLD)in the middle East is increasing in parallel to an increase in the prevalence of associated risk factors such as obesity,metabolic syndrome,and type 2 diabetes *** 20%to 30%of the patients progress to develop nonalcoholic steatohepatitis(NAsH),a histological subtype of NAFLD,with features of hepatocyte injury such as hepatocyte *** can progress to fibrosis,cirrhosis,and even hepatocellular *** thus causes a substantial burden on healthcare systems and it is imperative that appropriate strategies are discussed at a regional level to facilitate effective management tailored to the needs of the *** fulfil this unmet need,expert gastroenterologists,hepatologists,and endocrinologists from the region came together in three advisory board meetings that were conducted in saudi Arabia,United Arab Emirates,and Kuwait,to discuss current local challenges in NAFLD screening and diagnosis,and the different available management *** experts discussed the disease burden of NAFLD/NAsH in the middle East;screening,diagnosis,and referral patterns in NAFLD;and available treatment options for NAFLD and *** paper summarizes the discussions and opinion of the expert panel on the management of NAFLD/NAsH and also presents an extensive literature review on the topic.

关键词： Nonalcoholic fatty liver disease Nonalcoholic steatohepatitis middle East Expert opinion

D^0D^^0＊(D^0D^0＊) system in QCD-improved many body potential

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Chinese Physics C 2017年第1期41卷 60-71页

作者： m.Imran Jamil Bilal masud faisal Akram s.m.sohail Gilani University of management and Technology Lahore Pakistan Centre For High Energy Physics Punjab University Lahore(54590) Pakistan

For a system of current interest（composed of charm, anticharm and a pair of light quarks）, we show trends in phenomenological implications of QCD-based improvements to a simple quark model treatment. We employ a resonating group method to render this difficult four-body problem manageable. We use a quadratic confinement so as to be able to improve beyond the Born approximation. We report the position of the pole corresponding to the D^0D^0＊ molecule for the best fit of a model parameter to the relevant QCD simulations. We point out the interesting possibility that the pole can be shifted to 3872 me V by introducing another parameter I0 that changes the strength of the interaction in this one component of X（3872）. The revised value of this second parameter can guide future trends in modeling of the full exotic meson X（3872）. We also report the changes with I_0 in the s-wave spin averaged cross sections for D^0D^0＊-→ωJ/ψ and D^0D^0＊-→ρJ/ψ. These cross sections are important regarding the study of QGP（quark gluon plasma）.

关键词： meson-meson interaction resonating group method quark potential model X(3872)

Towards a Dynamic Virtual IoT Network Based on User Requirements

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Computers, materials & Continua 2021年第11期69卷 2231-2244页

作者： faisal mehmood shabir Ahmad Israr Ullah faisal Jamil DoHyeun Kim Department of Computer Engineering Jeju National UniversityJeju63243Korea Department of I.T.Convergence Engineering Gachon UniversitySeongnam-Si461-701Korea Department of software Engineering University of Engineering&Technology MardanMardan23200Pakistan

The data being generated by the Internet of Things needs to be stored,monitored,and analyzed for maximum IoT resource *** Defined Networking has been extensively utilized to address issues such as heterogeneity and ***,for small-scale IoT application,sometimes it is considered an inefficient *** paper proposes an alternate lightweight mechanism to the design and implementation of a dynamic virtual network based on user *** key idea is to provide users a virtual interface that enables them to reconfigure the communication flow between the sensors and actuators at *** throughput of the communication flow depends on the data traffic load and optimal *** can reconfigure the communication flow,and virtual agents find the optimal route to handle the traffic *** virtual network provides a user-friendly interface to allow physical devices to be mapped with the corresponding virtual *** proposed network is applicable for all systems that lie in the Internet of Things *** conclude that the proposed network is efficient,reliable,and responsive to network reconfiguration at runtime.

关键词： Internet of things software-defined networks virtual network inter-process communication cloud of things

Temperature stability of smCo(2:17) magnets modified by Ni-Cr two-layer coating

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Rare metals 2019年第3期38卷 238-244页

作者： saira Bibi Jing-min Wang m. faisal Rathore Cheng-Bao Jiang school of materials science and Engineering Beihang University National Center of Physics Quaid-e-Azam University

The oxidation resistance behavior of smCo(2:17)-type high-temperature magnets modified with Ni-Cr two-layer coating was studied. The study depicts the mass gain kinetics and magnetic properties of uncoated and NiCr-modified magnets oxidized at high temperature(500 ℃) in air for 200 h. The oxidation test results illustrate that the mass gain of uncoated magnet is6.95 mg·cm^(-2) which is more than that(0.08 mg·cm^(-2)) of coated magnet after 200 h. For the magnetic properties concerned, there is a great loss for uncoated magnet, while for coated magnet, magnetic properties do not change much. The study of uncoated magnet through X-ray diffraction(XRD) and electron probe microanalysis(EPmA) shows that the invasion of oxygen at high temperature leads to the loss of magnetic properties by changing the microstructure of magnet.

关键词： smCo(2:17) magnets surface modification High temperature stability Ni-Cr coating

Optimization Task scheduling Using Cooperation search Algorithm for Heterogeneous Cloud Computing systems

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Computers, materials & Continua 2023年第1期74卷 2133-2148页

作者： Ahmed Y.Hamed m.Kh.Elnahary faisal s.Alsubaei Hamdy H.El-sayed Department of Computer science Faculty of Computers and Artificial IntelligenceSohag UniversitySohag82524Egypt Department of Cybersecurity College of Computer Science and EngineeringUniversity of JeddahJeddah21959Saudi Arabia

Cloud computing has taken over the high-performance distributed computing area,and it currently provides on-demand services and resource polling over the *** a result of constantly changing user service demand,the task scheduling problem has emerged as a critical analytical topic in cloud *** primary goal of scheduling tasks is to distribute tasks to available processors to construct the shortest possible schedule without breaching precedence *** and schedules of tasks substantially influence system operation in a heterogeneous multiprocessor *** diverse processes inside the heuristic-based task scheduling method will result in varying makespan in the heterogeneous computing *** a result,an intelligent scheduling algorithm should efficiently determine the priority of every subtask based on the resources necessary to lower the *** research introduced a novel efficient scheduling task method in cloud computing systems based on the cooperation search algorithm to tackle an essential task and schedule a heterogeneous cloud computing *** basic idea of thismethod is to use the advantages of meta-heuristic algorithms to get the optimal *** assess our algorithm’s performance by running it through three scenarios with varying numbers of *** findings demonstrate that the suggested technique beats existingmethods NewGenetic Algorithm(NGA),Genetic Algorithm(GA),Whale Optimization Algorithm(WOA),Gravitational search Algorithm(GsA),and Hybrid Heuristic and Genetic(HHG)by 7.9%,2.1%,8.8%,7.7%,3.4%respectively according to makespan.

关键词： Heterogeneous processors cooperation search algorithm task scheduling cloud computing

Optimization of Transducer Location for Novel Non-Intrusive methodologies of Diagnosis in Diesel Engines

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sound & Vibration 2021年第3期55卷 221-234页

作者： s.Narayan m.U.Kaisan shitu Abubakar faisal O.mahroogi Vipul Gupta Department of mechanical Engineering Qassim UniversityBuraydah51452Saudi Arabia Department of mechanical Engineering Ahmadu Bello UniversityZaria810211Nigeria Department of mechanical Engineering Islamic University of MadinaMedina42351Saudi Arabia Department of mechanical Engineering Indus International UniversityUna174301India

The health monitoring has been studied to ensure integrity of design of engine structure by detection,quantification,and prediction of *** detection of faults may allow the downtime of maintenance to be rescheduled,thus preventing sudden shutdown of *** cylinder pressure developed,vibrations and noise emissions data provide a rich source of information about condition of *** of vibrations and noise emissions are novel non-intrusive methodologies for which positioning of various transducers are important *** presented work shows applicability of these diagnosis methodologies adopted in case of diesel *** effects of changing various fuel injection parameters was *** of using non-intrusive technique has been analyzed by changing locations of *** of this worklies in exploring signal processing methods for various locations around the engine test set *** frequency ranges of contributing noise and vibration sources were ***-Frequency analysis showed the onset of various *** on the identification of various frequency bands,it is possible to device suitable filters in order to extract more information.

关键词： IC engines automotive vibrations and noise emissions condition monitoring specialized industrial machinery and equipment