Subjects: MDO. / Modal analysis. / Multidisciplinary optimisation. / Noise. / NVH. / Response surface method. / RSM. / Vibration and harshness. / Weight.

Dissolution and conformational behavior of functionalized cellulose chains in the bulk, aqueous and non-aqueous media: A simulation study

Author: Koochaki, A.

Publisher: Elsevier Ltd,

Pub. Year: 2020

Subjects: Aqueous. / Conformation. / Functionalized cellulose. / Non-aqueous. / Distribution functions. / Conformational behavior. / Hydrophobic and hydrophilic. / Mean squared displacement. / Molecular architecture. / Molecular dynamics simulations. / Radial distribution functions. / Simulation studies. / Aliphatic compound. / Aromatic compound. / Polyether. / Toluene. / Aqueous solution. / Calculation. / Crystal. / Dissolution. / Entropy. / Hydrophilicity. / Hydrophobicity. / Molecular dynamics. / Solubility. / Cellulose. / Chains. / Crystallinity. / Functional Groups. / Media. / Radius of Gyration. / Water. / Wettability.

Antepartum fetal heart rate feature extraction and classification using empirical mode decomposition and support vector machine

Author: Krupa, N.

Pub. Year: 2011

Subjects: Cross-validation tests. / Data sets. / Empirical mode decomposition. / Feature extraction and classification. / Fetal heart rate. / Fetal surveillance. / Geometric mean. / Kappa values. / New approaches. / Sampling rates. / Sensitivity and specificity. / Standard deviation. / Training sets. / Visual analysis. / Classification (of information) / Fetal monitoring. / Machine components. / Neonatal monitoring. / Support vector machines. / Feature extraction. / Cardiotocography. / Female. / Fetus. / Fetus heart rate. / Human. / Instrumentation. / Methodology. / Nonlinear system. / Physiology. / Pregnancy. / Signal processing. / Validation study. / Heart Rate, Fetal. / Humans. / Nonlinear Dynamics. / Signal Processing, Computer-Assisted.

Optimal control of nonlinear dynamical systems using direct solution of neural network controllers

Author: Pourtakdoust, S. H.

Publisher: American Institute of Aeronautics and Astronautics Inc,

Pub. Year: 2002

Subjects: Chaotic dynamics. / Grnn. / Neural networks. / Optimal control.

Network immunization under limited budget using graph spectra

Author: Zahedi, R.

Publisher: World Scientific Publishing Co. Pte Ltd

Pub. Year: 2016

Subjects: Community. / Complex networks. / Graph spectra. / Immunization.

A new immunization algorithm based on spectral properties for complex networks

Author: Zahedi, R.

Publisher: Institute of Electrical and Electronics Engineers Inc,

Pub. Year: 2015

Subjects: Algorithms. / Computer viruses. / Epidemiology. / Immunization. / Iterative methods. / Community detection. / Epidemic spreading. / Graph spectra. / Greedy approaches. / Largest connected component. / Recent researches. / Spectral partitioning. / Spectral properties. / Complex networks.

Stability analysis of descriptor systems with multiple commensurate time-delays

Author: Zahedi, F.

Publisher: Elsevier Ltd,

Pub. Year: 2019

Subjects: Describing functions. / Time delay. / Asymptotic behaviors. / Descriptor systems. / Stability analysis. / Stabilizability. / Unstable regions. / System stability.

Decomposition and robust non-fragile stabilisation of singular time-delay systems

Author: Zahedi, F.

Pub. Year: 2018

Subjects: Closed loop systems. / Stabilization. / Time delay. / Timing circuits. / Controller parameter. / New approaches. / Non-fragile. / Singular time delay system. / Time-delay systems. / Delay control systems.

Asymptotic stability of linear descriptor systems with time-delay by designing delay margin

Author: Zahedi, F.

Publisher: Institute of Electrical and Electronics Engineers Inc,

Pub. Year: 2018

Subjects: Descriptor system. / Stability. / Time-delay system. / Asymptotic stability. / Closed loop systems. / Convergence of numerical methods. / Describing functions. / Numerical methods. / State feedback. / System stability. / Time delay. / Timing circuits. / Controller parameter. / Delay margin. / Descriptor systems. / Linear descriptor systems. / New approaches. / Time-delay systems. / Delay control systems.

Investigating the effect of geometric parameters on hydrodynamic and hydro-acoustic performances of submerged propellers

Author: Razaghian, A. H.

Publisher: Elsevier Ltd,

Pub. Year: 2021

Subjects: Acoustic noise. / Cavitation. / Efficiency. / Finite volume method. / Geometry. / Hydrodynamics. / Numerical methods. / Sailing vessels. / Acoustic performance. / FW-H equation. / Geometric parameter. / Hydro-acoustic. / Hydrodynamic. / Hydrodynamic efficiency. / Hydrodynamics performance. / Rake angle. / Skew angles. / Sound pressures level. / Propellers. / Acoustic method. / Geometry. / Hydrodynamics. / Pressure field. / Sound propagation. / Structural component. / Submerged body.

Thermo-mechanical modeling of high speed spindles

Author: Zahedi, A.

Pub. Year: 2012

Subjects: Angular contact ball bearings. / Coupled thermo-mechanical behavior. / High speed spindles. / Thermally induced preload. / Angular contact ball bearing. / Comprehensive model. / Coupled thermo-mechanical. / Finite element models. / Friction torque. / High-speed machine tools. / High-speed spindle. / Load components. / Mutual interaction. / Pre loads. / Reliable operation. / Six-degree-of-freedom. / Spindle housing. / Spindle shaft. / Spindle systems. / Spindle-bearing system. / Structural behaviors. / Thermal behaviors. / Thermo-mechanical analysis. / Thermo-mechanical behaviors. / Thermomechanical modeling. / Timoshenko beams. / Ball bearings. / Housing. / Machine tools. / Mechanical engineering. / Bearings (machine parts) / Dynamic response. / Finite element method. / Heat transfer. / Performance assessment. / Prediction. / Shaft. / Thermal expansion. / Thermomechanics. / Torque.

The dilemma of BME research projects in developing countries: A case study

Author: Zahedi, E.

Pub. Year: 2011

Subjects: AS relationships. / Holistic approach. / Real projects. / Developing countries. / Research.

The dilemma of BME research projects in developing countries: a case study

Author: Zahedi, E.

Pub. Year: 2011

Subjects: Developing country. / Devices. / Health services research. / Research. / Biomedical Engineering. / Developing Countries. / Equipment and Supplies. / Organizational Case Studies.

Operational strategy optimization of a hybrid green power system based on fuzzy logic controller with considering for optimal sizing and analysis of different priorities for energy storage

Author: Zahedi, R.

Publisher: Elsevier Ltd,

Pub. Year: 2022

Subjects: Energy storage. / Fuzzy logic controller. / Hybrid energy system. / Optimal operational strategy. / Optimal sizing. / Computer circuits. / Controllers. / Fuel cells. / Fuel storage. / Fuzzy logic. / Membership functions. / Renewable energy resources. / Solar power generation. / Fuzzy logic controllers. / Green Power System. / Loss of power supply probability. / Operational strategies. / Optimal analysis. / Optimal sizing. / Photovoltaic panels. / Strategy optimization. / Cost reduction.

Numerical and experimental investigations for design of a high performance microhydro-kinetic turbine

Author: Zahedi Nejad, A.

Pub. Year: 2017

Subjects: Duct. / Dynamic simulation. / Hydro-kinetic turbine. / Propeller test. / Computational fluid dynamics. / Computer simulation. / Computer software. / Degrees of freedom (mechanics) / Ducts. / Fabrication. / Kinetics. / Manufacture. / Numerical methods. / Propellers. / Rotation. / Turbines. / Turbomachine blades. / Water absorption. / Experimental investigations. / Experimental modeling. / Experimental models. / High speed rotation. / Kinetic turbines. / Numerical results. / Onedimensional flow. / User defined functions. / Turbine components.

Comparative analysis of agricultural water pricing between Azarbaijan Provinces in Iran and the state of California in the US: A hydro-economic approach

Author: Momeni, M.

Publisher: Elsevier B.V,

Pub. Year: 2019

Subjects: Purchasing Power Parity Index. / Sustainability. / Water pricing. / Crops. / Economics. / Sugar beets. / Sustainable development. / Water management. / Water supply. / Water supply systems. / Agricultural water management. / Comparative analysis. / Exchange rate indices. / Hydrological cycles. / Institutional reforms. / Purchasing power parity. / Water policy reform. / Costs. / Comparative study. / Index method. / Infrastructure planning. / Policy making. / Price dynamics. / Reform process. / Water economics. / Water planning. / Water use. / California. / East Azerbaijan. / Iran. / United States. / West Azerbaijan. / Allium cepa. / Beta vulgaris subsp. vulgaris. / Citrullus lanatus var. lanatus. / Hordeum. / Lycopersicon esculentum. / Medicago sativa. / Solanum tuberosum. / Triticum aestivum. / Zea mays.

NVH analysis and improvement of a vehicle body structure using DOE method

Author: Azadi, S.

Pub. Year: 2010

Subjects: DOE method. / FEM. / NVH. / RSM. / Vehicle body. / Before and after. / Car bodies. / Design of experiments methods. / Forced vibration. / Frequency map. / NASTRAN. / Noise , vibration and harshness. / NVH performance. / Reference map. / Response surface method. / Automobile bodies. / Density (optical) / Design of experiments. / Diffractive optical elements. / Finite element method. / Modal analysis. / Vehicles. / Vibration analysis. / Automobile parts and equipment.

A comprehensive study on noise reduction methods of marine propellers and design procedures

Author: Ebrahimi, A.

Publisher: Elsevier Ltd,

Pub. Year: 2019

Subjects: Design algorithm. / Geometric parameters. / Noise reduction. / Propeller noise. / Geometry. / Noise abatement. / Warships. / Destructive effects. / Ducted propeller. / Noise reduction methods. / Operational range. / Optimization method. / Underwater noise. / Ship propulsion.

Simulation of carbon dioxide direct air capture plant using potassium hydroxide aqueous Solution: Energy optimization and CO2 purity enhancement

Author: Zolfaghari, Z.

Pub. Year: 2024

Subjects: Aqueous Solution. / DAC. / Direct Air Capture. / Energy Optimization. / Energy utilization. / Optimization. / Potassium hydroxide. / Process design. / Waste heat. / Air captures. / Direct air capture. / Energy optimization. / Energy-consumption. / Optimal design. / Optimal process. / Pinch analysis. / Solution energy. / Carbon dioxide.

Transversal thermal transport in single-walled carbon nanotube bundles: Influence of axial stretching and intertube bonding

Author: Gharib Zahedi, M. R.

Pub. Year: 2013

Subjects: Axial stretching. / Computational data. / Energy transport. / Intermolecular bridges. / Reverse nonequilibrium molecular dynamics. / Single-walled carbon nanotube bundle. / Spatial ordering. / Thermal transport. / Heat flux. / Heat transfer. / Molecular dynamics. / Single-walled carbon nanotubes (SWCN) / Thermal conductivity.

Total 26321 records