Results 11 to 20 of about 68,806 (303)

EV Range Extender in a Two-Battery HEECS Chopper-Based Powertrain

open access: yesWorld Electric Vehicle Journal, 2019
This paper first presents a new powertrain based on a two-battery High-Efficiency Energy Conversion System (HEECS) chopper that is suitable for electric vehicles (EVs).
Ayataro Tamura   +2 more
doaj   +1 more source

A Prechop Technique Using a Reverse Chopper

open access: yesJournal of Investigative Surgery, 2019
Purpose: To describe a manual prechop technique for splitting the nucleus of the lens using a recently developed reverse chopper. Methods: During the process, the reverse chopper and the Nagahara chopper are placed diagonally in the peripheral area of ...
Yang Zhao   +3 more
doaj   +1 more source

Pengaruh Duty Cycle dan Frekuensi Terhadap Kecepatan Putar Motor DC

open access: yesTechne, 2018
Tulisan ini dibuat untuk mengetahui pengaruh perubahan frekuensi dan duty cycle terhadap kecepatan putar motor DC saat terbebani dan saat tidak dibebani yang diterapkan dengan menggunakan sistem PWM ( Pulse Width Modulation ).
Budihardja Murtianta
doaj   +1 more source

Fuzzy Logic for Improvement PID Control in D.C. Motor Speed [PDF]

open access: yesJournal of Electrical and Electronics Engineering, 2022
The paper presents a new strategy of making software modules with fuzzy control. It is the best solution for implementing complex applications. Dynamic control today takes place in discrete time and discrete values. Concurrently, it is desirable that the
GORDAN Ioan Mircea   +1 more
doaj  

Evaluation and Performance of Three-Phase Inverter Using Multiple Bidirectional Choppers Intended for 1.5-kVdc PV Systems

open access: yesIEEE Access, 2023
This article focuses on the chopper-cell number of a novel three-phase inverter for utility-scale photovoltaic (PV) systems where multiple cascaded bidirectional chopper cells and a three-phase line-frequency transformer with a three-legged core are used.
Linyue Qiao, Makoto Hagiwara
doaj   +1 more source

Modeling of DC Elevator Motor Drive forMid-rise Building [PDF]

open access: yesEngineering and Technology Journal, 2013
An elevator is a platform, either open or enclosed, used for lifting people or freight to upper floors within a building. Elevators are a standard part of any tall commercial or residential building.
Jamal A. Mohammed, Ahlam L. Shuraiji
doaj   +1 more source

Design and operation of the wide angular-range chopper spectrometer ARCS at the Spallation Neutron Source [PDF]

open access: yes, 2012
The wide angular-range chopper spectrometer ARCS at the Spallation Neutron Source (SNS) is optimized to provide a high neutron flux at the sample position with a large solid angle of detector coverage.
Abernathy, D. L.   +7 more
core   +1 more source

A Hybrid PV-Battery System for ON-Grid and OFF-Grid Applications—Controller-In-Loop Simulation Validation

open access: yesEnergies, 2020
In remote locations such as villages, islands and hilly areas, there is a possibility of frequent power failures, voltage drops or power fluctuations due to grid-side faults.
Umashankar Subramaniam   +5 more
doaj   +1 more source

Transformation the contunuum current vehicles actuated by a chopper in alternating current actuated by frequency converter and asynchronous power engine

open access: yesRevista Facultad de Ingeniería Universidad de Antioquia, 2003
The present work shows the methodology and the conditions that have to be fulfilled to transform the continuum current vehicles actuated by a chopper into alternating current vehicles actuated by frequency converter and asynchronous power engine.
Ioan Bele, Liviu Sevastian Bocîi
doaj   +1 more source

Wet granulation in laboratory-scale high shear mixers: Effect of chopper presence, design and impeller speed [PDF]

open access: yes, 2011
The effect of the main means of agitation in a high shear mixer has been investigated in this study. Granulation runs have been performed on a fine cohesive microcrystalline cellulose powder (Avicel 105, d50 = 20 μm) often used as a pharmaceutical ...
Chitu, Toma Mihai   +2 more
core   +3 more sources

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