Sharif Digital Repository

Managed-pressure drilling: Techniques and options for improving operational safety and efficiency

Author

Rohani, M. R.

Pub. Year

2012

Subjects

Constant Bottom Hole Pressure (CBHP) / Dual Gradient (DG) / Managed pressure drilling (MPD) / Pressurized Mud Cap Drilling (PMCD) / Return Flow Control (RFC)

tClickTree: a Tree-based Mmethod for predicting math students’ performance based on clickstream data

Author

Rohani, N.

Publisher

Zenodo,

Pub. Year

2024

Subjects

Educational data mining. / Learning analytics. / Learning behaviour. / Mathematics. / Student performance prediction.

Foam stability and foam-oil interactions

Author

Rashed Rohani, M.

Pub. Year

2014

Subjects

Foam. / Static foam properties. / Foams. / Ionic strength. / Petroleum reservoirs. / Addition of polymer. / EOR. / Foam properties. / Foam stability. / Foam-oil interactions. / Reservoir heterogeneity. / Static experiments. / Surfactant concentrations. / Stability.

Solid/liquid filtration in GTL process

Author

Bastani, D.

Pub. Year

2010

A new category of relations: combinationally constrained relations

Author

Rohani Rankoohi, M. T.

Pub. Year

2009

Subjects

Combinational constraint. / Combinationally constrained relation. / Constrained attribute. / Free attribute. / Relation. / Strong combinational constraint. / Weak combinational constraint. / Redundancy. / Quality assurance. / Database. / Mathematical analysis. / Numerical model. / Research work.

Memristor crossbar-based hardware implementation of the IDS method

Author

Merrikh Bayat, F.

Pub. Year

2011

Subjects

Active learning method (ALM) / Memristor crossbar. / Cross-bar structures. / Fuzzy implementation. / Hardware implementations. / ink drop spread (IDS) / Ink drop spreads. / Low latency. / Power failure. / Processing units. / Real time. / Soft computing tools. / Drops. / Fuzzy inference. / Fuzzy neural networks. / Learning systems. / Memristors. / Passive filters. / Resistors. / Soft computing. / Hardware.

Prognostics of rolling element bearings with the combination of Paris law and reliability method

Author

Behzad, M.

Pub. Year

2017

Subjects

Bearing. / Prognostics. / Bearings (machine parts) / Bearings (structural) / Condition monitoring. / Degradation. / Normal distribution. / Probability distributions. / Railroad crossings. / Reliability. / Systems engineering. / Level crossing. / Linear relationships. / Paris law. / Prognostics. / Remaining useful life predictions. / Remaining useful lives. / Rolling element bearing. / Vibration condition monitoring. / Roller bearings.

Estimation of remaining useful life of rolling element bearings using wavelet packet decomposition and artificial neural network

Author

Rohani Bastami, A.

Publisher

Springer International Publishing,

Pub. Year

2019

Subjects

Neural network. / Remaining useful life. / Rolling element bearing. / Vibration. / Wavelet packet transform.

Remaining useful life prediction of ball-bearings based on high-frequency vibration features

Author

Behzad, M.

Publisher

SAGE Publications Ltd,

Pub. Year

2018

Subjects

Ball-bearing. / Data-driven methods. / Feature. / High-frequency vibrations. / Condition monitoring. / Forecasting. / Time domain analysis. / Accurate estimation. / High frequency vibration. / Prognostics. / Remaining useful life predictions. / Remaining useful lives. / Vibration condition monitoring. / Ball bearings.

Synthesis and application of diethanolamine-functionalized polystyrene as a new sorbent for the removal of p-toluenesulfonic acid from aqueous solution

Author

Davarpanah, M.

Publisher

Korean Society of Industrial Engineering Chemistry,

Pub. Year

2015

Subjects

Equilibrium. / Functionalized polymeric resin. / Conductive plastics. / Ethanolamines. / Field emission microscopes. / Fourier transform infrared spectroscopy. / Kinetics. / Phase equilibria. / Polystyrenes. / Resins. / Scanning electron microscopy. / Solutions. / Adsorption kinetics. / Adsorption process. / Field emission scanning electron microscopy. / p-Toluene sulfonic acids. / Point of zero charge. / Polymeric resin. / Pseudo-first-order. / Ptoluenesulfonic acid. / Adsorption.

High temperature synthesis of SAPO-34: applying an L9 taguchi orthogonal design to investigate the effects of experimental parameters

Author

Dargahi, M.

Pub. Year

2012

Subjects

Crystallinity. / High temperature synthesis. / Taguchi orthogonal method. / Crystallinities. / Experimental conditions. / Experimental parameters. / High-temperature environment. / High-temperature synthesis. / Hydrothermal stabilities. / Organic templates. / Orthogonal array. / Orthogonal design. / SAPO-34. / Taguchi. / Taguchi methods. / Hydrothermal synthesis. / Chabazite. / Silicon substituted aluminophosphate molecular sieve 5. / Unclassified drug. / Zeolite. / Analytic method. / Controlled study. / Crystallization. / High temperature. / L9 Taguchi method. / Process optimization. / Synthesis. / Temperature sensitivity. / Thermal analysis. / Water content.