Results 21 to 30 of about 28,526,403 (303)
Impact of PWM strategies on RMS current of the DC-link Voltage Capacitor of a dual-three phase drive [PDF]
, 2014 The major drawback of usual dual three-phase AC machines, when supplied by a Voltage Source Inverter (VSI), is the occurrence of extra harmonic currents which circulate in the stator windings causing additional losses and constraints on the power ...
ROUHANA, Najib +5 more
core +1 more source
Analysis and design of a two-speed single-phase induction motor with 2 and 18 pole special windings [PDF]
, 2005 The motor presented employs multiple independent windings for operation with two very different pole numbers. The 18-pole field is produced with a symmetrical three-phase winding connected in a Steinmetz arrangement to a single-phase supply.
Dellinger, S.J. +4 more
core +1 more source
Computation of Optimal Current References for Flux-weakening of Multi-Phase Synchronous Machines [PDF]
, 2012 Multi-phase synchronous machines are more and more used in specific applications where high power density, low bus voltage, wide speed range and fault-tolerant capabilities are required. Due to the high number of degrees of freedom, multi-phase machines
Bassel Aslan +13 more
core +1 more source
Analysis of a finite element formulation for modelling phase separation [PDF]
, 2007 The Cahn-Hilliard equation is of importance in materials science and a range of other fields. It represents a diffuse interface model for simulating the evolution of phase separation in solids and fluids, and is a nonlinear fourth-order parabolic ...
Krishna Garikipati, Garth N. Wells
core +2 more sources
Sensors, 2017 Carbon fiber-reinforced plastic (CFRP) is widely used for structural members of transportation vehicles such as automobile, aircraft, or spacecraft, utilizing its excellent specific strength and specific rigidity in contrast with the metal.
Daiki Shiozawa +4 more
doaj +1 more source
Experiment and Application Study of Two-component Composite Grouting Material for Mine
Meikuang Anquan, 2020 In order to develop a green grouting material, portland cement, sulphoaluminate cement and loess, fly ash and zeolite powder were used as the substrate.
BAI Longjian, YAN Guochao
doaj +1 more source
Preparation of Certified Reference Materials of Sillimanite for Chemical Composition Analysis
Yankuang ceshi, 2017 With an increasing utilization of sillimanite, some reference materials of sillimanite for chemical composition have been developed in countries such as the UK, South Africa and Japan.
XU Chun-xue +5 more
doaj +1 more source
Yankuang ceshi, 2019 BACKGROUND Over the years, the total anomaly analysis results of geochemical exploration have found that there are not many deposits. Under the conditions of epigenetic conditions, different elements have different migration and deposition laws and ...
GE Jiang-hong +3 more
doaj +1 more source
Abrupt phase change in graphene-gold spr-based biosensor
Materials Research Express, 2020 The performance of surface plasmon resonance (SPR) sensors can be different depending on which characteristic of the SPR sensor the amplitude or the phase is monitored.
Nasrin Bouzari +3 more
doaj +1 more source
Experimental Methods to Evaluate the Carbonation Degree in Concrete—State of the Art Review
Applied Sciences, 2023 The carbonation action in concrete, in which carbonation reactions transform calcium hydroxide into calcium carbonate, is considered as a multi-phase physico-chemical process.
Huyen Bui +2 more
doaj +1 more source