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)

A fuzzy vendor managed inventory of multi-item economic order quantity model under shortage: An ant colony optimization algorithm

Author

Roozbeh Nia, A.

Pub. Year

2014

Subjects

Ant colony optimization. / Economic order quantity. / Fuzzy nonlinear integer programming. / Genetic algorithm. / Vendor managed inventory. / Algorithms. / Artificial intelligence. / Chains. / Genetic algorithms. / Integer programming. / Numerical methods. / Sensitivity analysis. / Supply chains. / Ant Colony Optimization algorithms. / Delivery constraints. / Differential Evolution. / Economic order quantity models. / Non-linear integer programming. / Warehouse capacity. / Economic analysis.

A hybrid genetic and imperialist competitive algorithm for green vendor managed inventory of multi-item multi-constraint EOQ model under shortage

Author

Roozbeh Nia, A.

Publisher

Elsevier Ltd,

Pub. Year

2015

Subjects

Economic order quantity (EOQ) / Genetic algorithm (GA) / Green house gas (GHG) emissions. / Hybrid algorithm. / Imperialist competitive algorithm (ICA) / Vendor managed inventory (VMI) / Algorithms. / Chains. / Economic analysis. / Gas emissions. / Greenhouse gases. / Integer programming. / Optimization. / Supply chains. / Contractual agreements. / Economic order quantity. / Economic order quantity models. / Non-linear integer programming.

An investigation of vendor-managed inventory application in supply chain: The EOQ model with shortage

Author

Pasandideh, S. H. R.

Pub. Year

2010

Subjects

Shortage. / Analytical model. / Backlog. / Before and after. / Cost saving. / Economic order quantity. / Economic order quantity models. / EOQ models. / Inventory management. / Numerical example. / Strategic alliance. / Supply chain parameters. / Total costs. / Vendor managed Inventory. / Vendor-Managed Inventory systems. / With shortage. / Competition. / Cost reduction. / Economic analysis. / Mathematical models. / Supply chains. / Supply chain management.

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.

Capacity-outage joint analysis and optimal power allocation for wireless body area networks

Author

Razavi, A.

Publisher

Institute of Electrical and Electronics Engineers Inc,

Pub. Year

2018

Subjects

Channel modeling. / wireless body area network (WBAN) / Benchmarking. / Channel capacity. / Chip scale packages. / Electric batteries. / Fading channels. / Probability. / Secondary batteries. / Wireless local area networks (WLAN) / Wireless networks. / Wireless telecommunication systems. / Channel model. / Ergodic capacity. / Hybrid metric. / Optimal power allocation. / Outage probability. / Outages.

Channel modeling and reliability assessment for body-centric wireless communications

Author

Razavi, A.

Pub. Year

2017

Subjects

Channel modeling. / IEEE 802.15.6 standard. / Sensor lifetime. / Barium compounds. / Chip scale packages. / Energy utilization. / Low power electronics. / Radio transceivers. / Reliability. / Wireless networks. / Wireless sensor networks. / Wireless telecommunication systems. / Bayesian information criterion. / Body-centric wireless communications. / Channel model. / Energy consumption model. / Health care application. / Ieee 802.15.6. / Reliability assessments. / Wireless body area network. / Wireless local area networks (WLAN)

Node positioning and lifetime optimization for wireless body area networks

Author

Razavi, A.

Pub. Year

2017

Subjects

Channel modeling. / IEEE 802.15.6 standard. / Symbol error rate. / Chip scale packages. / Low power electronics. / Optimization. / Radio transceivers. / Reliability. / Signal encoding. / Wireless networks. / Wireless telecommunication systems. / Channel model. / Ieee 802.15.6. / Node positioning. / Node/network lifetime. / Symbol error rate (SER) / Wireless body area network. / Wireless local area networks (WLAN)

Constrained error rate analysis for wireless body area networks

Author

Razavi, A.

Publisher

Institution of Engineering and Technology,

Pub. Year

2019

Subjects

Cost functions. / Errors. / Lagrange multipliers. / Closed-form expression. / Error rate performance. / Experimental channels. / Optimal energy allocations. / Optimisation problems. / Physiological signals. / Symbol error rate (SER) / Wireless body area network. / Wireless local area networks (WLAN)

Capacity-outage joint analysis and optimal power allocation for wireless body area networks

Author

Razavi, A.

Publisher

Institute of Electrical and Electronics Engineers Inc,

Pub. Year

2019

Subjects

Channel modeling. / Wireless body area network (WBAN) / Benchmarking. / Body sensor networks. / Channel capacity. / Chip scale packages. / Fading channels. / Measurement. / Probability. / Secondary batteries. / Sensors. / Wireless local area networks (WLAN) / Wireless telecommunication systems. / Body Area Network. / Channel model. / Ergodic capacity. / Hybrid metric. / Optimal power allocation. / Outage probability. / Power system reliability. / Resource management. / Wireless communications. / Outages.