Results 41 to 50 of about 432,133 (164)

In Situ Parameter Estimation of Synchronous Machines Using Genetic Algorithm Method

open access: yesAdvances in Electrical and Electronic Engineering, 2016
The paper presents an in situ parameter estimation method to determine the equivalent circuit parameters of the Synchronous Machines. The parameters of synchronous generator, both cylindrical rotor and salient pole rotor, are estimated based on the ...
Gopalakrishnan Kalarikovilagam Srinivasan   +1 more
doaj   +1 more source

Identifying Characteristic of Power Quality Problems on Solar Electric Power Generation

open access: yesInternational Journal of Electrical, Energy and Power System Engineering, 2018
The influence of connected electrical load will cause significant problems on Solar Electric Power Generator (SEPG). The problems are extremely important to be identification in order to provide electrical energy optimally. The objective of this paper is
Nurhalim Dani Ali   +1 more
doaj   +1 more source

A study on surrounding rock characteristics inducing severe large deformation in tunnels and methods for determining its strength

open access: yesScientific Reports
The Haba Snow Mountain Tunnel experienced severe deformation caused by foliated metamorphic basalt. This rock has high metamorphism, easy weathering, and low strength.
Zhongsheng Tan   +3 more
doaj   +1 more source

RESEARCH ON ACCELERATED LOAD SPECTRUM FOR FATIGUE TEST OF PHEV SUBFRAME WELDS

open access: yesJixie qiangdu
Aiming at the problem of the weld fatigue test of the new energy vehicle subframe, a program load spectrum compilation method based on the failure dominant load was proposed. Firstly, the finite element model of the rear subframe was established, and the
ZHAO Lihui   +5 more
doaj  

Mechanical Behaviors of a New Polymer-Based Restorative Material for Immediate Loading: An In Vitro Comparative Study

open access: yesApplied Sciences
The aim of the present in vitro comparative study is to validate a novel composite polymer, named “ONLY”, developed to overcome the mechanical drawbacks of conventional, metal-reinforced poly(methyl methacrylate) (PMMA) interim restoration.
Milena Pisano   +11 more
doaj   +1 more source

Analysis and Comparison of Three Bending Tests on Phosphogypsum-Based Material According to Peridynamic Theory

open access: yesBuildings
Phosphogypsum-based materials have gained much attention in the field of road infrastructure from the economic and sustainable perspectives. The Three-point bending test, the Four-point bending test and the Semi-circular bending test are three typical ...
Haoyu Ma   +5 more
doaj   +1 more source

Functionally-informed fine-mapping identifies genetic variants linking increased CHD1L expression and HIV restriction in monocytes

open access: yesScientific Reports
Human Immunodeficiency Virus Type 1 (HIV) set-point viral load is a strong predictor of disease progression and transmission risk. A recent genome-wide association study in individuals of African ancestries identified a region on chromosome 1 ...
Riley H. Tough   +2 more
doaj   +1 more source

Study on the Time-Varying Stiffness Characteristics of Four-Point Contact Ball Bearings

open access: yesLubricants
This paper takes a four-point contact ball bearing of a wind turbine as the research object, analyzes the force and deformation relationship under the combined action of axial load and radial load, obtains the load distribution of rolling elements, and ...
Runlin Chen   +5 more
doaj   +1 more source

Geotechnical and mineralogical properties of weak rocks from Central Greece

open access: yesOpen Geosciences, 2009
Ioanna Ilia   +3 more
doaj   +1 more source

Fatigue load optimization and test verification of the full-scale aileron

open access: yesJixie qiangdu
In the fatigue test of aircraft wing structural components, the fatigue design loads need to be optimized so as to reduce the bending, shear and torsion load errors applied during the test.
LIU Lu   +4 more
doaj  

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