Sharif Digital Repository

Influence of In situ thermal processing strategies on the weldability of martensitic stainless steel resistance spot welds: effect of second pulse current on the weld microstructure and mechanical properties

Author

Aghajani, H.

Publisher

Springer Boston,

Pub. Year

2019

Subjects

Carbides. / Fracture toughness. / Grain boundaries. / In situ processing. / Martensite. / Microstructure. / Satellites. / Spot welding. / Weldability. / Welds. / Energy absorption capability. / Load-bearing capacity. / Low energy grain boundaries. / Martensitic structures. / Microstructure mechanical properties. / Processing strategies. / Second pulse currents. / Weld mechanical properties. / Martensitic stainless steel.

A pathway to produce strong and tough martensitic stainless steels resistance spot welds

Author

Aghajani, H.

Publisher

Taylor and Francis Ltd,

Pub. Year

2019

Subjects

Martensitic stainless steel. / Austenite. / Carbides. / Chromium compounds. / Energy absorption. / Failure (mechanical) / Martensite. / Microstructure. / Satellites. / Spot welding. / Welds. / Austenitic microstructure. / Dual phase microstructure. / Interfacial failures. / Nickel interlayer. / Pull-out failure. / Quasi-cleavage. / Resistance spot weld. / Resistance spot welding.

On the structure of detonation waves in magnetohydrodynamics

Author

Aghajani, A.

Pub. Year

2006

On the structure of ionizing shock waves in magnetofluiddynamics

Author

Aghajani, A.

Pub. Year

2002

Resilient cities, a key solution to safeguard the environment

Author

Aghajani, Y.

Publisher

Sharif University of Technology,

Pub. Year

2016

Subjects

Developing countries. / Planning. / Criteria. / Megacities. / Resilient city. / Safe environment. / Sustainable cities. / Sustainable development.

Structural image representation for image registration

Author

Aghajani, K.

Publisher

Institute of Electrical and Electronics Engineers Inc,

Pub. Year

2015

Subjects

Image Registration. / Phase Congruency. / Structural Image Representation. / Artificial intelligence. / Image processing. / Image retrieval. / Medical imaging. / Signal processing. / Virtual reality. / Area based algorithms. / Correlation coefficient. / Mutual informations. / Nonrigid image registration. / Similarity metrics. / Structural representation. / Medical image processing.

Evolution of the electronic structure and structural properties of BaFe2As2 at the tetragonal-collapsed tetragonal phase transition

Author

Aghajani, M.

Publisher

Elsevier,

Pub. Year

2015

Subjects

Fe-As superconductors. / High pressures. / Bond length. / Density functional theory. / Electronic properties. / Electronic structure. / Fermi surface. / Iron compounds. / Praseodymium compounds. / Strontium compounds. / Electronic and structural properties. / Electronic band structure. / First principle calculations. / Generalized gradient approximations. / High pressure. / Partial density of state. / Structural phase transition. / Two-dimensional cylinder. / Structural properties.

On the existence of fast strong and fast weak ionizing detonation waves in magnetohydrodynamics

Author

Aghajani, A.

Pub. Year

2009

Subjects

Detonation waves. / Non uniqueness. / One steps. / Reaction rate functions. / Fluid dynamics. / Magnetohydrodynamics. / Reaction rates. / Shock waves. / Detonation.

Pressure dependence of effective Coulomb interaction parameters in BaFe2As2 by first-principle calculation

Author

Aghajani, M.

Publisher

Elsevier B.V,

Pub. Year

2018

Subjects

Effective onsite coulomb interactions. / Approximation algorithms. / Barium compounds. / Coulomb interactions. / Electron energy levels. / Iron compounds. / Pressure effects. / BaFe2As2. / Coulomb interaction parameters. / cRPA method. / Electronic screening. / First principle calculations. / Projected density of state. / Random phase approximations. / Screened Coulomb interaction. / Arsenic compounds.

Mechanical and chemical pressure effects on the AeFe 2 As 2 (Ae = Ba, Sr, Ca) compounds: Density functional theory

Author

Aghajani, M.

Publisher

Elsevier B.V,

Pub. Year

2019

Subjects

122 iron-pnictide compounds. / BaFe 2 As 2. / Chemical and mechanical pressure effects. / First-principle calculations. / Barium compounds. / Calcium compounds. / Charge transfer. / Density functional theory. / Electronic properties. / Magnetism. / Pressure effects. / Strontium compounds. / BaFe2As2. / Chemical pressure effects. / First principle calculations. / Hole and electron pockets. / Iron-pnictide. / Magnetic and electronic properties. / Mechanical pressure. / Pressure induced charge transfers. / Iron compounds.

Life prediction of wind turbine blades using multi-scale damage model

Author

Aghajani, S.

Publisher

SAGE Publications Ltd,

Pub. Year

2021

Subjects

Behavioral research. / Cost estimating. / Fatigue damage. / Forecasting. / Laminated composites. / Turbine components. / Wind turbines. / Fatigue damage models. / Induced degradation. / Lamina fractures. / Life predictions. / Multi-axial fatigue. / Theoretical methods. / User material subroutine. / Wind turbine blades. / Turbomachine blades.

Life prediction of wind turbine blades using multi-scale damage model

Author

Aghajani, S.

Publisher

SAGE Publications Ltd,

Pub. Year

2021

Subjects

Behavioral research. / Cost estimating. / Fatigue damage. / Forecasting. / Laminated composites. / Turbine components. / Wind turbines. / Fatigue damage models. / Induced degradation. / Lamina fractures. / Life predictions. / Multi-axial fatigue. / Theoretical methods. / User material subroutine. / Wind turbine blades. / Turbomachine blades.

Intensity based image registration by minimizing the complexity of weighted subtraction under illumination changes

Author

Aghajani, K.

Publisher

Elsevier Ltd,

Pub. Year

2016

Subjects

Illumination change. / Nonrigid image registration. / Residual complexity. / Similarity metric. / Weighted subtraction. / Algorithms. / Virtual reality. / Illumination changes. / Similarity metrics. / Image registration. / Algorithm. / Article. / Computer assisted tomography. / Illumination. / Imaging and display. / Interventional magnetic resonance imaging. / Neurosurgery. / Priority journal. / Retina image.

A robust voice activity detection based on wavelet transform

Author

Aghajani, K.

Pub. Year

2008

Subjects

Boolean functions. / Computational linguistics. / Feature extraction. / Information theory. / Mathematical transformations. / Speech enhancement. / Speech processing. / Telecommunication equipment. / Wavelet transforms. / International conferences. / Voice activity detection. / Speech recognition.

Power allocation and performance analysis for incremental-selective decode-and-forward cooperative communications over Nakagami-m fading channels

Author

Aghajani, R.

Pub. Year

2013

Subjects

Incremental selective decode-and-forward. / Symbol error rate. / Bandwidth efficiency. / Decode-and-forward. / Modulation constellation sizes. / Nakagami-m fading channels. / Optimum power allocations. / Performance analysis. / Power allocations. / Symbol error rate (SER) / Mobile telecommunication systems. / Modulation. / Rayleigh fading. / Signal encoding. / Fading channels.

A robust image registration method based on total variation regularization under complex illumination changes

Author

Aghajani, K.

Publisher

Elsevier Ireland Ltd,

Pub. Year

2016

Subjects

Complex spatially varying intensity distortion. / Nonrigid image registration. / Weighted Total Variation. / Computerized tomography. / Gaussian noise (electronic) / Image coding. / Image denoising. / Image registration. / Optimization. / Remote sensing. / Digital subtraction angiography. / Remote sensing applications. / Robust image registration. / Sum of absolute differences. / Sum of square differences. / Total variation regularization. / Weighted total variations. / Medical imaging. / Experimental model. / Four dimensional computed tomography. / Illumination. / Image analysis. / Iris. / Noise. / Registration. / Retina. / Algorithm. / Procedures. / Theoretical model. / Algorithms. / Image Enhancement. / Lighting. / Models, Theoretical.

Using Web-GIS technology as a smart tool for resiliency management to monitor wind farms performances (Ganjeh site, Iran)

Author

Aghajani, D.

Publisher

Center for Environmental and Energy Research and Studies,

Pub. Year

2019

Subjects

Data base system (DBS) / Geographic information system (GIS) / Resiliency. / Web-GIS technique. / Wind farms. / Wind turbines. / Artificial intelligence. / Costs. / Database systems. / Decision support systems. / Economics. / Geographic information systems. / Information systems. / Information use. / Wind power. / Decision support system (dss) / Future performance. / Literature survey. / Operation and maintenance. / Optimal operation. / Wind farm. / Electric utilities. / Decision support system. / Environmental monitoring. / GIS. / Internet. / Literature review. / Management practice. / Performance assessment. / Software. / Wind turbine.

Using Web-GIS technology as a smart tool for resiliency management to monitor wind farms performances (Ganjeh site, Iran)

Author

Aghajani, D.

Publisher

Center for Environmental and Energy Research and Studies,

Pub. Year

2018

Subjects

Data base system (DBS) / Geographic information system (GIS) / Resiliency. / Web-GIS technique. / Wind farms. / Artificial intelligence. / Costs. / Database systems. / Decision support systems. / Economics. / Geographic information systems. / Information systems. / Information use. / Wind power. / Wind turbines. / Decision support system (dss) / Future performance. / Literature survey. / Operation and maintenance. / Optimal operation. / Web-GIS. / Wind farm. / Electric utilities.

Assessing the explanatory power of naturalism in addressing ultimate questions

Author

Aghajani, J. D.

Publisher

Saint Petersburg State University,

Pub. Year

2021

Subjects

Complete explanation. / Naturalism. / Personal explanation. / Reductionism. / Ultimate question.

Metaphysical necessity in the neo-sadraian school and assessment of necessitarian theories of the laws of nature

Author

Aghajani, J. D.

Publisher

Czech Academy of Sciences,

Pub. Year

2021

Subjects

A posteriori. / Essentialism. / Laws of nature. / Metaphysical necessity. / Neo-Sadraian. / Universal theory.