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# Type Title Author Publisher Pub. Year Subjects Call Number
1 مقاله Numerical investigation on dimpled tube effects on internal cooling performance of turbine blades Abtahi Mehrjardi, A. 2024 Cooling.
Heat flux.
Oceanography.
Turbine components.
Turbulence models.
Blade internal cooling enhancement.
C3X blade.
Conjugate heat transfer.
Cooling enhancement.
Cooling performance.
Dimpled tubes.
Internal cooling.
Modified surfaces.
Reduced conjugate heat transfer.
Turbine blade.
Turbomachine blades.
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2 پایان نامه به‌کارگیری یادگیری ماشین در توسعه مدل‌ های جایگزین دقت بالا به‌ منظور پیش‌ بینی خنک‌کاری لایه‌ای مبتنی بر رهیافت گردابه‌های بزرگ Application of Machine Learning in the Development of Surrogate Models Based on the Large Eddy Simulation Approach ابطحی مهرجردی، علی Abtahi Mehrjardi, Ali صنعتی شریف 1403 خنک کاری لایه ای Film Cooling / پره های توربین Turbine Blades / سیستم خنک کاری داخلی Internal Cooling System / شبیه سازی گردابه ای بزرگ Large Eddy Simulation (LES) / روش‌ های جایگزین Alternative Methods / شار حرارتی آشفته Turbulent Heat Flux / عدد پرانتل آشفته Turbulent Prandtl Number
‭45-58139
3 مقاله Melting process of various phase change materials in presence of auxiliary fluid with sinusoidal wall temperature Abtahi Mehrjardi, S. A. Elsevier Ltd, 2022 Auxiliary fluid.
Hybrid energy storage systems.
Phase change materials (PCMs)
Heat storage.
Heat transfer.
Hybrid materials.
Hybrid systems.
Melting.
Paraffins.
Storage (materials)
Coconut oil.
Density difference.
Heat rate.
Heptadecane.
Hexadecane.
Melting process.
Phase change material.
Sinusoidal wall temperature.
Phase change materials.
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4 مقاله Enhancing latent heat storage systems: the impact of PCM volumetric ratios on energy storage rates with auxiliary fluid assistance Abtahi Mehrjardi, A. Elsevier Ltd, 2023 Auxiliary fluid.
Melting.
Numerical study.
Phase change material (PCM)
Thermal energy storage (TES)
Volume ratio.
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5 مقاله Effect of elliptical dimples on heat transfer performance in a shell and tube heat exchanger Abtahi Mehrjardi, A. Springer Science and Business Media Deutschland GmbH, 2023 Elliptical dimples.
Heat transfer performance.
P-NTU analysis method.
Shell-and-tube heat exchanger (STHE)
Thermal capacity.
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6 مقاله A brief review on different hybrid methods of enhancement within latent heat storage systems Khademi, A. Elsevier Ltd, 2022 Hybrid enhancement methods.
Latent heat storage (LHS)
Phase change materials (PCMs)
Renewable energy.
Thermal energy storage (TES)
Heat storage.
Heat transfer.
Hybrid materials.
Latent heat.
Melting.
Porous materials.
Solidification.
Storage (materials)
Thermal conductivity.
Thermal energy.
Hybrid enhancement method.
Improvement methods.
Latent heat storage.
Latent heat storage system.
Phase change material.
Renewable energies.
Thermal energy storage.
Thermal energy storage systems.
Phase change materials.
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7 پایان نامه تحلیل دینامیکی میکروموتورهای الکترواستاتیکی خراش محرک Dynamic Analysis of Electrostatical Scratch Drive Micromotors ابطحی، منصور Abtahi, Mansour صنعتی شریف 1393 مدل سازی دینامیکی Dynamic Modeling / مدل اصطکاکی لوگر Lund-Grenoble (LuGre)Friction Model / لایه فشرده Squeeze Film / سیستم میکروالکترومکانیکی Microelectromechanical Systems (MEMS) / ریزموتور خراش محرک Scratch Drive Micromotor (SDM) / عملگر خراش محرک Scratch Drive Actuator (SDA)
‭08-47192
8 مقاله A robust, resilience multi-criteria decision-making with risk approach: a case study for renewable energy location Lotfi, R. Springer Science and Business Media Deutschland GmbH, 2023 Multi-criteria decision-making.
Renewable energy location.
Risk-averse.
Robust.
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9 پایان نامه بررسی احتمالاتی رفتار غیرارتجاعی سازه‌های برشی بر بستر صلب و انعطاف‌پذیر Probabilistic Evaluation of Nonlinear Behavior of Fixed- and Flexible-Base Shear Buildings ابطحی، شقایق Abtahi, Shaghayegh صنعتی شریف 1395 تقاضای مقاومت Strength Demand / عدم قطعیت Uncertainty / بر هم کنش خاک - سازه Soil-Structure Interaction / سازه های چنددرجه آزادی Multi-Degree of Freedom Structures / نظریه تک لایه معادل Equivalent Single Layer Theory / تحلیل احتمالاتی Probability Analysis / رفتار غیرارتجاعی Inelastic Behavior / سازه های برشی Shear Structures
‭09-49632
10 مقاله Electrochemical synthesis of polypyrrole in the presence of congo red; application to selective voltammetric determination of dopamine in the presence of ascorbic acid Shahrokhian, S. 2009 Ascorbic acid.
Congo red.
Dopamine.
Electrocatalysis.
Electropolymerization.
Modified electrode.
Polypyrrole.
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11 مقاله Application of thionine-nafion supported on multi-walled carbon nanotube for preparation of a modified electrode in simultaneous voltammetric detection of dopamine and ascorbic acid Shahrokhian, S. 2007 Alcohols.
Amines.
Catalyst activity.
Cyclic voltammetry.
Electrocatalysis.
Ascorbic acids.
Carbon paste.
Dopamine.
Nafion.
Thionine.
Multiwalled carbon nanotubes (MWCN)
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12 مقاله Cobalt salophen-modified carbon-paste electrode incorporating a cationic surfactant for simultaneous voltammetric detection of ascorbic acid and dopamine Shahrokhian, S. 2007 Amines.
Ammonium compounds.
Chemical modification.
Cyclic voltammetry.
Positive ions.
Surface active agents.
Ascorbic acid.
Cobalt salophen.
Dopamine.
Electrocatalysis.
Modified electrodes.
Electrodes.
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13 مقاله Simultaneous voltammetric determination of uric acid and ascorbic acid using a carbon-paste electrode modified with multi-walled carbon nanotubes/nafion and cobalt(II)-nitrosalophen Shahrokhian, S. 2007 Ascorbic acid.
Carbon nanotube.
Carbon paste electrode.
Cobalt-5-nitrosalophen.
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14 مقاله Usage of high-fidelity large eddy simulation to improve the turbulence modeling of Reynolds averaged navier stokes simulation in film cooling applications via a neural network Mazaheri, K. 2024 Neural network.
Turbulence modeling.
Turbulent prandtl number.
Complex networks.
Geometry.
Heat flux.
Prandtl number.
Reynolds number.
Shear flow.
Shear strain.
Strain rate.
Turbulence models.
Cooling applications.
Film cooling.
High-fidelity.
Large-eddy simulations.
Neural-networks.
Reynold-averaged navier-stokes simulations.
Reynolds-averaged navier-stokes simulations.
Surrogate modeling.
Large eddy simulation.
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15 مقاله Sliding mode control application to amplitude control of comb-actuated resonant microscanners Abtahi, M. 2010 Amplitude control.
Control functions.
Electrostatic comb drives.
High speed scanning.
Micro opto electro mechanical systems.
Micro-scanners.
Optical parts.
Sliding modes.
Machine design.
Sliding mode control.
Systems analysis.
MOEMS.
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16 مقاله Sparsity-based MIMO radars Abtahi, A. Birkhauser, 2021
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17 مقاله Sparsity-Based MIMO radars Abtahi, A. Birkhauser, 2021
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18 پایان نامه سنتز نانوذرات نقره با استفاده از روش مایکروویو و بررسی اثر آنتی باکتریال آن Synthesis of Colloidal Silver Nanoparticles by Microwave Method and Study of its Antibacterial Activity ابطحی، نیکو Abtahi, Nikoo صنعتی شریف 1390 نانوذرات نقره Silver Nanoparticles / ریزموج Microwave / فعالیت ضد باکتری Antibacterial Activity
‭57-42962
19 پایان نامه تخمین و کنترل توأم وضعیت ماهواره با استفاده از سیستم استنتاج فازی - عصبی تطبیقی Integrated Control and Estimation of Satellite Attitude using Adaptive Nero-Fuzzy Inference System ابطحی، مهدی Abtahi, Mehdi صنعتی شریف 1395 نوفه Noise / عدم قطعیت Uncertainty / کنترل ماهواره Satellite Control / تخمین وضعیت Attitude Estimation / شبکه عصبی Neural Network / سیستم های فازی Fuzzy Systems / سیستم استنتاج عصبی - فازی تطبیق پذیر Adaptive Neuro-Fuzzy Inference System (ANFIS)
‭45-48738
20 پایان نامه تولید نمونه‌ های خصمانه علیه مدل‌ های شناسایی بدافزارهای اندرویدی Generating Adversarial Examples Against Android Malware Detection Models ابطحی، مجتبی Abtahi, Mojtaba صنعتی شریف 1404 نمونه خصمانه Adversarial Example / یادگیری تقویتی سلسله مراتبی Hierarchical Reinforcement Learning / فضای کنش بزرگ Large Action Space / الگوریتم بهینه‌ سازی سیاست نزدیک Proximal Policy Optimization Algorithm / حمله گریز از تشخیص Evasion Attack / بازآموزش خصمانه Adversarial Retraining
‭19-58844
Total 2630 records