Results 81 to 90 of about 16,649 (277)

Computation of Electromagnetic Torque in a Double Rotor Switched Reluctance Motor Using Flux Tube Methods

open access: yesEnergies, 2012
With their highly robust nature and simple design, switched reluctance machines are finding their way into numerous modern day applications. However, they produce oscillatory torque that generates torque ripple and mechanical vibrations.
Mohammad Hamiruce Marhaban   +4 more
doaj   +1 more source

Do cultural taboos regulate hunting in transitioning Indigenous communities? The case of the Idu Mishmi of Northeast India

open access: yesPeople and Nature, EarlyView.
Abstract There is rising recognition of resource‐use rights of Indigenous Peoples and Local Communities (IPLCs) within wildlife conservation. Historically, sociocultural institutions ensured wildlife sustainability in many IPLC areas. However, the future viability of such institutions is uncertain as IPLCs change in response to external pressures and ...
Sahil Nijhawan   +5 more
wiley   +1 more source

Numerical Modal Analysis of Vibrations in a Three-Phase Linear Switched Reluctance Actuator

open access: yesModelling and Simulation in Engineering, 2017
This paper addresses the problem of vibrations produced by switched reluctance actuators, focusing on the linear configuration of this type of machines, aiming at its characterization regarding the structural vibrations.
José Salvado   +3 more
doaj   +1 more source

Two-Dimensional Exact Subdomain Technique of Switched Reluctance Machines with Sinusoidal Current Excitation

open access: yesMathematical and Computational Applications, 2018
This paper presents a two-dimensional (2D) exact subdomain technique in polar coordinates considering the iron relative permeability in 6/4 switched reluctance machines (SRM) supplied by sinusoidal waveform of current (aka, variable flux reluctance ...
Mohammed Ben Yahia   +4 more
doaj   +1 more source

In-wheel motor design for electric vehicles [PDF]

open access: yes, 2006
In this work an in-wheel electric motor prototype has been designed for experimental purposes. In-Wheel Motor (Hub motor) can be used in electric cars with 4 wheel independent drive configuration.
Cakir, Kazim   +3 more
core  

Persistence and potential of soil organic carbon in nature‐based climate solutions: A review of managed disturbances

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Implementing nature‐based climate solutions is important for mitigating climate change, which is a global issue, but requires local adjustments in management practices. Using the association between soil carbon and minerals as a proxy for carbon persistence, we evaluated the effect of different management regimes on soil carbon sequestration and loss ...
Adam Pellegrini   +3 more
wiley   +1 more source

Optimum Performances for Non-Linear Finite Elements Model of 8/6 Switched Reluctance Motor Based on Intelligent Routing Algorithms

open access: yesAdvances in Electrical and Electronic Engineering, 2017
This paper presents torque ripple reduction with speed control of 8/6 Switched Reluctance Motor (SRM) by the determination of the optimal parameters of the turn on, turn off angles Theta_(on), Theta_(off), and the supply voltage using Particle Swarm ...
Chouaib Labiod   +5 more
doaj   +1 more source

Prediction of eddy current losses in cooling tubes of direct cooled windings in electric machines [PDF]

open access: yes, 2019
The direct coil cooling method is one of the existing cooling techniques for electric machines with concentrated windings, in which cooling tubes of conductive material are inserted between the windings.
Ibrahim, Mohamed, Sergeant, Peter
core   +2 more sources

Why Autonomous Vehicles Are Not Ready Yet: A Multi‐Disciplinary Review of Problems, Attempted Solutions, and Future Directions

open access: yesJournal of Field Robotics, EarlyView.
ABSTRACT Personal autonomous vehicles can sense their surrounding environment, plan their route, and drive with little or no involvement of human drivers. Despite the latest technological advancements and the hopeful announcements made by leading entrepreneurs, to date no personal vehicle is approved for road circulation in a “fully” or “semi ...
Xingshuai Dong   +13 more
wiley   +1 more source

The Epistemic Generativity of Using a Model of a Big Idea

open access: yesScience Education, EarlyView.
ABSTRACT Science instruction should involve learners in generating and warranting ideas, what we call epistemic generation. In modeling instruction, epistemic generation should be achieved by coordinating a model structure with the experienced world in reciprocal directions denoted as developing models and using models. In the former, a model structure
Jonathan T. Shemwell, Daniel K. Capps
wiley   +1 more source

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