Results 321 to 330 of about 10,505,009 (388)
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Dynamic Modeling of Kaplan Turbines Including Flow Rate and Efficiency Static Characteristics

IEEE Transactions on Power Systems, 2019
Models for Kaplan turbines usually assume the runner blades always follow the optimum efficiency relationship, which is not true during transient responses. This misrepresentation can lead to incorrect analysis of system stability.
H. Menarin   +5 more
semanticscholar   +1 more source

Simulation on Static and Dynamic Characteristics of Servovalve

Applied Mechanics and Materials, 2012
In this paper, we build a simulation model of the two stage flapper-nozzle electro hydraulic servovalve with the hydraulic component design libraries and the AMESet secondary development of modeling in AMESim simulation environment. By adjusting the parameters of the model, the performance of the servovalve were analyzed.
Bo Yan Song   +3 more
openaire   +2 more sources

One-dimensional static sheath characteristics

Journal of Applied Physics, 1982
The boundary layer between an electrode biased to a large negative potential (relative to the electron temperature eφ≫kTe ) and a collisionless argon plasma (n∼1×109 cm−3, kTe ∼2.5 eV) was studied using Langmuir probes. A simple model based on Child’s law, including finite electron temperature effects, was fit to data obtained from both cold and ...
J. L. Nightingale   +2 more
openaire   +2 more sources

Thyristor Triggering, Static and Dynamic Characteristics [PDF]

open access: possible2019 IEEE 15th Brazilian Power Electronics Conference and 5th IEEE Southern Power Electronics Conference (COBEP/SPEC), 2019
The purpose of this document is to study the thyristor semiconductor switch through its static, dynamic and triggering parameters, focusing on how they affect and are affected by the variables found in real-life applications.
Ricardo Alves do Prado, Ulrich Nicolai
openaire   +1 more source

Static Elastic Characteristics of Carbon Nanotubes

ECS Transactions, 2010
In work the influencing of variable deformation ε was researched on elastic and inelastic characteristics: elastic module E and internal friction (IF) of carbon nanotubes and polypropylene; Ti ВТ1-0 alloy.
Oleg Lyashenko   +2 more
openaire   +2 more sources

A Calculation Method to Investigate the Effects of Geometric Parameters and Operational Conditions on the Static Characteristics of Aerostatic Spherical Bearings

Journal of tribology, 2018
In this paper, a calculation method based on matlab partial differential equations (PDE) tool is proposed to investigate the static characteristics of aerostatic spherical bearings.
Hailong Cui   +4 more
semanticscholar   +1 more source

Static and dynamic pupillary characteristics in multiple sclerosis

European Journal of Ophthalmology, 2021
Purpose: To examine the static and dynamic pupillary functions with automated pupillography in multiple sclerosis (MS) patients with preserved visual acuity. Methods: Forty-seven MS patients with preserved visual acuity were included in the study group and 43 healthy volunteers in the control group.
Ersin Muhafiz   +4 more
openaire   +3 more sources

Static and Dynamic Characteristics of XPL Programs

Computer, 1975
One use of performance measurement techniques is in the study of operational characteristics of programs written in high-level programming languages. Information derived from such studies can be used to construct benchmark programs and synthetic workloads,1,2detect inefficiencies in programming language implementation, and suggest possible improvements
W.G. Alexander, D.B. Wortman
openaire   +2 more sources

Preload effects on the static characteristics of three-lobe journal bearings lubricated with a couple stress fluid

, 2019
The purpose of this paper is to present the effect of the preload on the static characteristics of three-lobe bearings lubricated with a fluid blended with high polymer additives modeled as a couple stress fluid.,Based on the micro-continuum theory, the ...
B. Chetti, W. A. Crosby
semanticscholar   +1 more source

Characteristics of sensitivity derivatives of static responses

Structural Optimization, 1998
Mathematical expressions for linear structures consisting of prismatic elements have been developed, which corroborate well-known facts: (a) nodal displacements depend on many design variables and (b) element stresses depend on fewer numbers of design variables.
YADAVA, RSS, GURUJEE, CS, RANGANATHAN, R
openaire   +3 more sources

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