Results 11 to 20 of about 3,995,176 (315)

Sum-Frequency Spectrum Phase Measurement of the Silica-Octadecyltrichlorosilane Interface and Measurement Accuracy Analysis

open access: yes, 2021
Phase measurement sum-frequency vibration spectroscopy (SFG) can obtain molecular orientation information of the material surface, but there are still some key issues that remain unresolved, including experimental repeatability, experimental design, and ...
Li Yu-qiong   +4 more
core   +1 more source

peggyscshu/Mitosis-phase-analysis:

open access: yes, 2021
A cell cycle occurs as a cell divides. The somatic cell leaves interphase, undergoes mitosis and eventually gives out two daughter cells. Mitosis is composed by a series of events including prophase, metaphase, anaphase and telophase.
Shao-Chun, Peggy, Hsu
core   +1 more source

Vectorial formalism for analysis and design of polyphase synchronous machines [PDF]

open access: yes, 2003
A vectorial formalism for analysis and design of polyphase synchronous machines without reluctance and saturation effects is described. We prove the equivalence of such a machine with a set of magnetically independent machines, which are electrically and
BOUSCAYROL, Alain   +5 more
core   +1 more source

Multi-phase System Supplied by SVM VSI: A New Fast Algorithm to Compute Duty Cycles [PDF]

open access: yes, 2004
La version éditeur de cette article est disponible à l'adresse suivante : http://www.epe-association.org/epe/index.phpMany authors proposed SVM VSI applied to multi-phase ...
HAUTIER, Jean-Paul   +2 more
core   +1 more source

Line-start permanent-magnet motor: single-phase starting performance analysis [PDF]

open access: yes, 2002
This paper presents a detailed quasi-steady-state approach to different torque components (average and pulsating) for a single-phase capacitor-run permanent-magnet (PM) motor.
McGilp, M.I.   +11 more
core   +1 more source

Analysis and design of a two-speed single-phase induction motor with 2 and 18 pole special windings [PDF]

open access: yes, 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

Impact of PWM strategies on RMS current of the DC-link Voltage Capacitor of a dual-three phase drive [PDF]

open access: yes, 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

Mechanochemical synthesis of AlCoCrFeNi powders via high-energy ball milling

open access: yesҚарағанды университетінің хабаршысы. Физика сериясы, 2023
AlCoCrFeNi powders in equimolar ratios were synthesized by mechanochemical synthesis on a high-energy ball milling machine (HEBM). The elemental and phase composition of AlCoCrFeNi powders before and after mechanochemical synthesis were investigated by ...
Е.Е. Камбаров   +3 more
doaj   +1 more source

Modeling the Instability of Development of Complex Hierarchical Systems [PDF]

open access: yesProblemi Ekonomiki, 2021
The article suggests using modern instruments of dynamic analysis, i.e. the theories of phase, cointegration, and bifurcation analysis and the catastrophe theory to improve the methodology to study the dynamic pattern of the development indices of ...
Sergienko Olena A.   +2 more
doaj   +1 more source

Reliability of phase-specific outcome measurements in change-of-direction tests using a motorized resistance device

open access: yesFrontiers in Sports and Active Living, 2023
This study aims to determine test-retest reliability of phase-specific information during initial acceleration, deceleration, and re-acceleration phases of different change-of-direction (CoD) tests using a motorized resistance device (MRD). A total of 21
Frederic Westheim   +4 more
doaj   +1 more source

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