Results 11 to 20 of about 3,281,012 (248)

Starting Well Health Visiting Practice Guides: An Independent Audit [PDF]

open access: yes, 2004
This report presents findings from a small study of the use of the health visiting practice guides developed as part of the Staring Well National Demonstration project.
Dalley, G, Gilhooly, M
core   +7 more sources

The physics of H-Darrieus turbine starting behavior [PDF]

open access: yes, 2014
This paper provides a resolution to the contradictory accounts of whether or not the Darrieus turbine can self-start. The paper builds on previous work proposing an analogy between the aerofoil in Darrieus motion and flapping-wing flow mechanisms.
Grant L. Ingram   +7 more
core   +1 more source

Starting Over [PDF]

open access: yes, 2020
The title of this blog is the same as the reflective single by John Lennon which, went to number one immediately after his senseless murder on December 8th1980 and heralded his return to music after a five-year gap. Starting Over was Lennon’s declaration
McCabe, Steven
core   +3 more sources

The First Half-Turn of an Inertial Vibrator

open access: yesEngineering Transactions, 2014
The paper concerns the starting of an inertial vibrator which, due to a high value of static unbalance, is unable to perform the first half-turn in the gravitational field of force.
G. CIEPLOK
doaj   +1 more source

An invertible dependence of the speed and time of the induction machine during no-load direct start-up

open access: yesAutomatika, 2020
In this paper, an invertible dependence of the speed and time of the induction machine during no-load direct start-up is presented. Namely, based on the parameters of the induction machine equivalent circuit as well as on the basic, well-known, equation ...
Martin P. Ćalasan
doaj   +1 more source

Frequency and operational characteristics of an ultra-lightweight machine converting energy by magnetic resonance coupling

open access: yesThe Journal of Engineering, 2019
Electric aircrafts capable of moving in three dimensions cause creation of new industries and applications in society. Also, electric aircrafts operate on minimal energy with low emissions. However, an electric aircraft must be ultra-lightweight.
Kazuto Sakai, Kenta Takishima
doaj   +1 more source

Fault tolerant single-phase capacitor start capacitor run induction motor powered with cascaded multilevel quasi impedance source inverter

open access: yesThe Journal of Engineering, 2019
In this study, the performance of fault tolerant single-phase capacitor start capacitor run induction motor powered using seven-level quasi-impedance source inverter (qZSI) is analysed.
Syed Rahman   +6 more
doaj   +1 more source

Research on Efficient Coordination Control System of Virtual Coupling for Urban Rail Train

open access: yesKongzhi Yu Xinxi Jishu
Virtual coupling of urban rail train sets represents a cutting-edge frontier in urban rail transit research, with the goal of improving operational efficiency of trains on the existing lines, particularly in the starting and stopping stages.
SHI Ke   +5 more
doaj   +3 more sources

Load flow, short circuit and motor starting studies in electrical power substations.

open access: yesITEGAM-JETIA
Power system studies are essential for the proper planning and design of electrical power substations. This paper presents the load flow, short circuit, and motor starting studies for 33/6.6/0.44 kV electrical power substation.
Mohan Muniappan
doaj   +1 more source

A new simplified sensorless direct stator field-oriented control of induction motor drives

open access: yesFrontiers in Energy Research, 2022
A field-orientation scheme is a typical control technique of induction motors to obtain sophisticated performance. The stator field-oriented control is less sensitive to parameter variations than the rotor field-oriented control.
Omar E. M. Youssef   +4 more
doaj   +1 more source

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