Sharif Digital Repository

Engineering students’ motivation to learn technical english in esp courses: investigating iranian teachers’ and students’ perceptions

Author

Jafari Pazoki, S.

Publisher

SAGE Publications Ltd,

Pub. Year

2019

Subjects

Academic level. / Engineering students. / ESP. / Motivation. / Technical English.

Engineering Students’ Motivation to Learn Technical English in ESP Courses: Investigating Iranian Teachers’ and Students’ Perceptions

Author

Jafari Pazoki, S.

Publisher

SAGE Publications Ltd,

Pub. Year

2020

Subjects

Academic level. / Engineering students. / English for Specific Purposes (ESP) / Motivation. / Technical English.

The impact of gender and task nature on iranian EFL learners’ oral corrective feedback preferences

Author

Salehi, M.

Publisher

University of Isfahan, Department of English,

Pub. Year

2020

Subjects

Corrective feedback (CF) / Gender. / Learner’s preferences. / Oral CF.

Antioxidant nanomaterials in advanced diagnoses and treatments of ischemia reperfusion injuries

Author

Amani, H.

Publisher

Royal Society of Chemistry,

Pub. Year

2017

Subjects

Antioxidants. / Cell signaling. / Free radicals. / Nanoparticles. / Oxygen supply. / Surgery. / Transplantation (surgical) / Cardiopulmonary bypass. / Clinical conditions. / Free radical scavenging properties. / Inflammatory response. / Ischemia reperfusion. / Ischemia-reperfusion injury. / Myocardial Infarction. / Pharmacological treatment. / Tissue.

Gapless chiral excitons in thin films of topological insulators

Author

Jafari, S. A.

Pub. Year

2014

Collective excitations and the nature of Mott transition in undoped gapped graphene

Author

Jafari, S. A.

Pub. Year

2012

Subjects

Collective excitations. / Composite bosons. / Critical points. / Critical value. / Dirac fermions. / Dynamical mean-field theory. / Energy scale. / Gap parameter. / Hubbard interaction. / Low energies. / Luttinger liquids. / Mott insulators. / Mott transitions. / Short range interactions. / Spin-charge separation. / Undoped systems. / Graphene. / Mean field theory. / Velocity.

Nonlinear optical response in gapped graphene

Author

Jafari, S. A.

Pub. Year

2012

Subjects

Closed-form formulae. / Covariant. / Dirac theory. / Functional dependence. / Logarithmic singularity. / Low energies. / Non-linear optical. / Nonlinear optical response. / Optical nonlinearity. / Response functions. / Single particle spectrum. / Graphene. / Nonlinear optics.

Exact phase boundaries and topological phase transitions of the XYZ spin chain

Author

Jafari, S. A.

Pub. Year

2017

Subjects

Chains. / Charge density. / Charge density waves. / Phase boundaries. / Phase space methods. / Spin dynamics. / Statistical mechanics. / Winding. / Co-ordinate system. / Geometric progressions. / Identified parameter. / Order parameter. / Parameter spaces. / Renormalization group. / Simple derivations. / Topological phase. / Topology.

Electric field assisted amplification of magnetic fields in tilted Dirac cone systems

Author

Jafari, S. A.

Publisher

American Physical Society,

Pub. Year

2019

Subjects

Electric fields. / Landforms. / Electric and magnetic fields. / Geometric description. / Layered organic conductors. / Lorentz transformations. / Magnetic and electric fields. / Minkowski space-time. / Perpendicular magnetic fields. / Quantum oscillations. / Magnetic fields.

Tilted-Lorentz symmetry

Author

Jafari, S. A.

Publisher

Isfahan University of Technology,

Pub. Year

2020

Subjects

Spacetime in solid state physics. / Tilted Lorentz group. / Dirac cone.

Neural network-based brain tissue segmentation in MR images using extracted features from intraframe coding in H.264

Author

Jafari, M.

Pub. Year

2012

Subjects

Artificial neural network classifier. / Artificial Neural Network. / Back-propagation neural networks. / Brain tissue. / Brain tissue segmentation. / Classification accuracy. / Coding standards. / Gray matter. / H.264/AVC. / Intraframe coding. / Medical images. / MR images. / Network-based. / Tumor tissues. / White matter. / Brain. / Cerebrospinal fluid. / Codes (symbols) / Compression ratio (machinery) / Computational complexity. / Feature extraction. / Image coding. / Image segmentation. / Motion Picture Experts Group standards. / Neural networks. / Tissue. / Computer vision.

Automatic brain tissue detection in MRI images using seeded region growing segmentation and neural network classification

Author

Jafari, M.

Pub. Year

2011

Subjects

Artificial neural network. / Brain tumor detection. / Classification. / Connected component labeling. / Feature extraction and selection. / Seeded region growing segmentation.

Fast intra- and inter-prediction mode decision of H.264/AVC for medical frame compression based on region of interest

Author

Jafari, M.

Pub. Year

2011

Subjects

Adaptive search range decision. / H.264/AVC. / Intra- and inter-prediction. / Medical video compression. / Region of interest.

On the chromatic number of generalized kneser graphs

Author

Jafari, A.

Publisher

University of Calgary,

Pub. Year

2017

An efficient intra prediction mode decision algorithm for H.263 to H.264 transcoding

Author

Jafari, M.

Publisher

IEEE Computer Society,

Pub. Year

2006

Subjects

Algorithms. / Computational complexity. / Decision theory. / Image coding. / Image compression. / Motion compensation. / Telecommunication networks. / Intra prediction mode decision algorithms. / Video stream. / Video transcoding. / Video signal processing.

On abelian and homomorphic secret sharing schemes

Author

Jafari, A.

Publisher

Springer,

Pub. Year

2021

Subjects

Cryptography. / Group theory. / Abelian secret sharing. / Access structure. / Duality. / Generalisation. / Homomorphic secret sharing. / Ideal access structure. / Information ratio. / Secret sharing schemes. / Secret value. / Secret-sharing. / Vector spaces.

Fast intra-prediction mode decision in H.264 advanced video coding

Author

Jafari, M.

Pub. Year

2006

Subjects

(algorithmic) complexity. / (PL) properties. / Advanced Video coding. / Bit rate (bpp) / Communications systems. / DC mode. / Encoding speed. / Encoding time. / Experimental results. / H.264/AVC. / international conferences. / intra prediction. / New methods. / Pan's method. / prediction functions. / prediction mode decision. / Rate-distortion (R-D) optimization (RDO) / Singapore. / Statistical properties. / Video coding standards. / Video compression. / Visual qualities. / Communication. / Communication systems. / Computational complexity. / Conductive plastics. / Encoding (symbols) / Forecasting. / Function evaluation. / Image compression. / Motion Picture Experts Group standards. / Signal distortion. / Standards. / Video signal processing. / Visual communication. / Image coding.

Prioritisation of data partitioned MPEG-4 for streaming video in GPRS mobile networks

Author

Jafari, M.

Pub. Year

2005

Subjects

Distance education. / Ground penetrating radar systems. / Multimedia systems. / Teleconferencing. / Telemedicine. / Wireless telecommunication systems. / Mobile teleconferencing. / Noisy wireless channels. / Real-time interactive video. / Wireless mobile communications. / Data compression.

Partial secret sharing schemes

Author

Jafari, A.

Publisher

Institute of Electrical and Electronics Engineers Inc,

Pub. Year

2023

Subjects

Decomposition methods. / Information theoretic cryptography. / Perfect and non-perfect security. / Secret sharing. / Wiretap channel.