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Generalized Model of Blood Flow in a Vertical Tube with Suspension of Gold Nanomaterials: Applications in the Cancer Therapy

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Computers, Materials & Continua 2020年第10期65卷 171-192页

作者： anees imtiaz Oi-Mean Foong Aamina Aamina Nabeel Khan Farhad Ali Ilyas Khan Department of Mathematics City University of Science and Information TechnologyPeshawarPakistan Computer and Information Sciences Department Universiti Teknologi PETRONASSeri IskandarMalaysia Computational Analysis Research Group Ton Duc Thang UniversityHo Chi MinhVietnam Faculty of Mathematics and Statistics Ton Duc Thang UniversityHo Chi MinhVietnam Department of Mathematics College of Science Al-ZulfiMajmaah UniversityAl-Majmaah11952Saudi Arabia

Gold metallic nanoparticles are generally used within a lab as a tracer,to uncover on the presence of specific proteins or DNA in a sample,as well as for the recognition of various *** are bio companionable and have properties to carry thermal energy to tumor cells by utilizing different clinical *** the cancer cells are very smaller so for the infiltration,the properly sized nanoparticles have been injected in the *** this reason,gold nanoparticles are very *** in mind the above applications,in the present work a generalized model of blood flow containing gold nanoparticles is considered in this *** blood motion is considered in a cylindrical tube under the oscillating pressure gradient and magnetic *** problem formulation is done using two types of fractional approaches namely CF(Caputo Fabrizio)and AB(Atangana-Baleanue)derivatives,whereas blood is considered as a counter-example of Casson *** solutions of the problem are obtained using joint Laplace and Hankel transforms,and a comparative analysis is made between CF and *** are computed in tables and shown in various plots for embedded parameters and *** is found that adding 0.04-unit gold nanoparticles to blood,increase its heat transfer rate by 4 percent compared to regular *** is also noted that the heat transfer can be enhanced in the blood with memory.

关键词： Gold nanoparticles heat transfer enhancement blood flow Casson fluid AB CF fractional derivatives

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Optical and structural properties of sol-gel derived nanostructured CeO_2 film

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Journal of Semiconductors 2010年第5期31卷 21-25页

作者： anees A.Ansari National Physical Laboratory Dr.K S Krishnan MargPusaNew Delhi-110012India

Sol-gel derived nanostructured CeO_2 film was deposited on glass substrate using by dip-coating technique with annealing at 650℃.X-ray diffraction（XRD）,scanning electron microscopy（SEM）,Fourier transform infrared （FTIR）,UV/vis and photoluminescence（PL） spectroscopy studies were employed to analyze the structural and optical properties of the sol-gel derived nanostructured CeO_2 *** average crystallite size was estimated from the XRD pattern using by Scherrer equation as about 3-4 *** SEM micrograph shows that the film was porous in nature and crack *** UV-visible absorption spectroscopic measurement results showed that the products had conspicuous quantum size *** absorption spectrum indicates that the sol-gel derived nanostructured CeO_2 film has a direct bandgap of 3.23 eV and the photoluminescence spectra of the film show a strong band at 378 nm：it may have a promising application as an optoelectronic material.

关键词： sol-gel derived nanostructured CeO_2 film band gap photoluminescence UV/VIS

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Impact of surface coating on morphological, optical and photoluminescence properties of YF3：Tb^3＋ nanoparticles

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Chinese Chemical Letters 2017年第3期28卷 651-657页

作者： anees A.Ansari King Abdullah Institute for Nanotechnology King Saud University Riyadh 11451 Saudi Arabia

A simple polyol and sol–gel Stober process were employed for synthesis of YF_3：Tb~＋（core）, YF_3：Tb~＋@LaF_3（core/shell） and YF_3：Tb~＋@LaF_3@SiO_2（core/shell/SiO_2） nanoparticles（NPs）. The phase purity, crystalinity,morphology, optical and photoluminescence properties were investigated and discussed with the help of various analytical techniques including X-ray diffraction pattern,FE-transmission electron microscopy（TEM）,FTIR, UV/vis absorption, energy band gap and emission spectra. XRD andFE-TEM studies indicate the formation of core/shell nanostructure and ~10 nm thick amorphous silica surface coating surrounding the core-NPs, which is also confirmed byFTIR spectral results. The surface modifications of core-NPs significantly affect the optical features in the form of energy band gap, which were correlated with particle size of the nanomaterials. The comparative emission spectral results show that after inert layer coating the luminescent core-NPs display stronger emission intensity in respect to core and silica coated core/shell/SiO_2-NPs. The solubility character along with colloidal stability was improved after silica surface modification, whereas luminescent intensity was suppressed causing the surface functionalized with high energy silanol（Si-OH） molecules. These novel luminescent nanomaterials with enhanced emission intensity and excellent solubility in aqueous solvents would be potentially useful for fluorescence bioimaging/optical bio-probe etc.

关键词： Yttrium fluoride Silica shell Luminescent-nanoparticles Absorption spectra Energy band gap Emission spectra

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Molecular Structure of Phenylthiourea as a Corrosion Inhibitor for Mild Steel in Hydrochloric Acid

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腐蚀科学与防护技术 2011年第6期23卷 457-462页

作者： anees A, Khadom Chemical Engineering Department College of Engineering Baghdad University Aljaderea 10071 Baghdad Iraq

The application of statistical analysis and quantum chemical models on the corrosion inhibition of mild steel in hydrochloric acid in presence of phenylthiourea(PTU) as corrosion inhibitor have been *** mathematical models were used,second order polynomial model and Arrhenius type equation *** software based on Levenberg-Marquardt estimation method was used to evaluate the coefficients of two *** follows that the two models were suitable to represent the corrosion rate data at different *** correlation coefficient of second order polynomial model was *** for the Arrhenius type model was *** structure of inhibitor was optimized by ArgusLab 4.0.1 *** quantum chemical parameters(***.△E,and dipole momentμt) were estimated by PM3-SCF method.

关键词：磨蚀控制腐蚀防护金属腐蚀 PTU

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Environmental impact of energy imports:Natural resources income and natural gas production profitability in the Asia-Pacific Economic Cooperation Countries

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Geoscience Frontiers 2024年第2期15卷 125-139页

作者： Aimin Pan Si Xu Syed anees Haider Zaidi School of Business Hunan University of Science and TechnologyXiangtanChina School of Tourism and Economic Management Nanchang Normal UniversityNanchangChina Faculty of Economic Sciences University of WarsawPoland

Environmental degradation is a pressing global concern,with the energy sector being one of the major contributors to this *** environmental impact of energy imports,particularly regarding natural resources income and natural gas production profitability,cannot be *** must assess the environmental consequences of their energy choices and take steps to minimize their *** transitioning to cleaner and more sustainable energy sources,countries can ensure a better future for the environment and their *** study examines the impact of energy imports and natural resources income on environmental degradation in the Asia-Pacific Economic Cooperation(APEC)countries from 1990 to 2020,using revenue minus the production cost of natural gas and electricity production from renewable sources as moderating ***-run estimates are derived using the Generalized Method of Moments and robust least *** findings elucidate that importing energy from countries specializing in renewable energy can help reduce reliance on fossil *** diversification of energy sources decreases the overall carbon footprint and contributes to a cleaner *** gas production often involves infrastructure construction,such as drilling rigs and pipelines,which can disrupt natural habitats and wildlife *** destruction of ecosystems can have long-term consequences on biodiversity and ecological *** environmental impact of energy imports,particularly related to natural resource income and natural gas production profitability,requires BRICS countries to take proactive *** nations can address the environmental challenges associated with their energy demands by implementing policies prioritizing sustainable resource management,carbon pricing,stringent regulation,and investment in research and *** doing so,they can balance economic growth and environmental sustainability,ensuring a greener future for the BRICS

关键词： Energy imports Environmental degradation Natural resources income Renewable energy APEC countries

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Two-Phase Flow of Blood with Magnetic Dusty Particles in Cylindrical Region: A Caputo Fabrizio Fractional Model

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Computers, Materials & Continua 2021年第3期66卷 2253-2264页

作者： anees Imitaz Aamina Aamina Farhad Ali Ilyas Khan Kottakkaran Sooppy Nisar Department of Mathematics City University of Science and Information TechnologyPeshawar25000Pakistan Computational Analysis Research Group Ton Duc Thang UniversityHo Chi Minh CityVietnam Faculty of Mathematics and Statistics Ton Duc Thang UniversityHo Chi Minh CityVietnam Department of Mathematics College of Science Al-ZulfiMajmaah UniversityAl-Majmaah11952Saudi Arabia Department of Mathematics College of Arts and SciencesPrince Sattam bin Abdulaziz UniversityWadi Aldawaser11991Saudi Arabia

The present study is focused on the unsteady two-phase flow of blood in a cylindrical *** is taken as a counter-example of Brinkman type fluid containing magnetic(dust)*** oscillating pressure gradient has been considered because for blood flow it is necessary to investigate in the form of a diastolic and systolic *** transverse magnetic field has been applied externally to the cylindrical tube to study its impact on both fluids as well as *** system of derived governing equations based on Navier Stoke’s,Maxwell and heat equations has been generalized using the well-known Caputo–Fabrizio(C–F)fractional *** considered fractional model has been solved analytically using the joint Laplace and Hankel(L&H)*** effect of various physical parameters such as fractional parameter,Gr,M andγ on blood and magnetic particles has been shown graphically using the Mathcad *** fluid behaviour is thinner in fractional order as compared to the classical one.

关键词： Two-phase blood flow dusty fluid Brinkman type model magnetic dusty particles heat transfer C-F derivative

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Radiation Tolerant Viterbi Decoders for On-Board Processing(OBP) in Satellite Communications

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China Communications 2020年第1期17卷 140-150页

作者： Zhen Gao Lina Yan Jinhua Zhu Ruishi Han Ullah anees Reviriego Pedro School of Electrical and Information Engineering Tianjin UniversityTianjin 300072China Department of Electrical and Computer Engineering Sir Syed CASE Institute of TechnologyIslamabad 44000Pakistan Universidad Carlos III de Madrid Av.Universidad 30LeganésMadrid 28005Spain

Modern satellite communication systems require on-board processing(OBP)for performance improvements,and SRAM-FPGAs are an attractive option for OBP ***,SRAM-FPGAs are sensitive to radiation effects,among which single event upsets(SEUs)are important as they can lead to data corruption and system *** paper studies the fault tolerance capability of a SRAM-FPGA implemented Viterbi decoder to SEUs on the user *** and fault injection experiments are conducted to verify that over 97%of the SEUs on user memory would not lead to output *** achieve a better reliability,selective protection schemes are then proposed to further improve the reliability of the decoder to SEUs on user memory with very small *** the results are obtained for a specific FPGA implementation,the developed reliability estimation model and the general conclusions still hold for other implementations.

关键词： viterbi decoder on-board processing FPGA user memory fault tolerance single event upsets

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A Compact Tri-Band Antenna Based on Inverted-L Stubs for Smart Devices

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Computers, Materials & Continua 2022年第2期70卷 3321-3331页

作者： Niamat Hussain anees Abbas Sang-Myeong Park Seong Gyoon Park Nam Kim Department of Information and Communication Engineering Chungbuk National UniversityCheongju28644Korea Department of Information and Communication Engineering Kongju National UniversityKongju32588Korea

We designed and constructed a novel,compact tri-band monopole antenna for intelligent *** behavior was achieved by placing inverted-L shaped stubs of various lengths in a triangular monopole antenna fed by a coplanar *** resonance frequency of each band can be controlled by varying the length of the corresponding *** bands,at 2.4(2.37-2.51),3.5(3.34-3.71),and 5.5(4.6-6.4)GHz,were easily obtained using three stubs of different *** miniaturization,a portion of the longest stub(at 2.4 GHz)was printed on the opposite side of the substrate,and connected to the main stub via a shorting *** validate the concept,the antenna was fabricated on a low-cost 1.6-mm-thick FR-4 substrate with dimensions of 20×15×1.6 mm^(3).The antenna exhibited a moderate average gain of 2.9 dBi with an omnidirectional radiations over the bandwidths required for RFID,Bluetooth,ISM,WiMAX,andWLAN-band *** features make the antenna suitable for compact smart devices.

关键词： Multiband antenna compact antenna tri-band antenna CPW antenna stub-loaded antenna

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Synthesis,Structure and Characterization of a 3D Chiral Barium Carboxylate Metal-organic Framework Based on TADDOL Ligand

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Chinese Journal of Structural Chemistry 2017年第11期36卷 1871-1877页

作者：邵枫 anees Abbas 李子建刘燕刘百战崔勇 State Key Laboratory of Metal Matrix Composites School of Chemistry and Chemical EngineeringShanghai Jiaotong University China Tobacco

A novel alkaline earth-based chiral metal-organic framework 1 {[Ba（1.5）L（μ-OH2）2（DMF）2（H2O）]·DMF·1.5 H2O}n was synthesized from C2-symmetric TADDOL-based ligand H4L and structurally characterized by single-crystal and powder X-ray diffraction, Fourier-transform infrared spectra（FTIR）, solid-state circular dichroism（CD） and thermal gravimetric analysis（TGA）. 1 crystallizes in monoclinic space group C2 with a = 43.5105（12）, b = 9.4781（3）, c = 15.5620（4） A°, β = 99.7770（10）o, V = 6324.5（3） A°^3, Z = 2, Mr = 1434.18 g/mol, Dc = 1.506 g/cm^3, F（000） = 2904, GOOF = 1.026, the final R = 0.0358 and w R = 0.0952 for 21747 observed reflections with I 〉 2σ（I）. Each Ba3 cluster in 1 is linked by eight ligands and each ligand with one coordination-free carboxyl oxygen, O（5）, is coordinated to four Ba3 clusters to generate a 3D network. In addition, the photoluminescence of 1 and H4L was also investigated.

关键词： TADDOL, barium, ehiral metal-organic framework, photoluminescence

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An AMC-Based Circularly Polarized Antenna for 5G sub-6 GHz Communications

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Computers, Materials & Continua 2021年第12期69卷 2997-3013页

作者： Hussain Askari Niamat Hussain Domin Choi MdAbu Sufian anees Abbas Nam Kim Department of Information and Communication Chungbuk National UniversityCheongju28644Korea

This paper presents an AMC(artificial magnetic conductor)-based wideband circularly polarized printed monopole antenna for unidirectional *** antenna includes an AMC reflector,a coplanar waveguide(CPW)feed structure to excite the antenna,a ground plane with a rectangular slot on the left side of feedline,and an asymmetrical ground plane on its right *** induced surface currents on CWP feedline,rectangularly slotted,and asymmetrical ground planes cause circularly polarized *** AMC reflector consisting periodic metallic square patches is used instead of the conventional PEC(perfect electric conductor)reflector,the distance between the antenna and reflector is reduced from 0.25λ0 to 0.18λ0 with performance *** incorporating AMC layer with the monopole antenna,the gain of antenna is increased from 3.3 dBic to 8.7 dBic while the axial ratio bandwidth(ARBW)of antenna is increased from 27.27%to 51.67%.The simulated and measured results show that the proposed antenna has an overlapping 10-dB|S_(11)|and 3-dB ARBW of 51.67%(3.0–5.09 GHz).The overall dimensions of monopole antenna backed by AMC reflector is 1.20_(λ0)×1.20_(λ0)×0.21_(λ0) and covers 5G sub-6 GHz new radio bands(n77/n78/n79)for wireless communication systems.

关键词： Monopole antenna circular polarization axial ratio AMC

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