Results 21 to 30 of about 6,992 (264)

A New Phase Sequence Exchanging Control Method for Reducing Impulse Current and Voltage

open access: yesIEEE Access, 2019
Phase sequence exchanging technology (PSET) is a recently developed emergency control technology for out-of-step power systems. The PSET system does not satisfy the condition of synchronization however, and will produce impulse current and impact torque.
Yifan Li   +5 more
doaj   +1 more source

Study on debugging of lightning impulse voltage waveform for large capacity ±800kV converter transformer in high altitude area

open access: yesFrontiers in Energy Research, 2023
The Qinghai-Henan ±800kV UHV DC power transmission project is an UHV channel specially constructed for clean energy delivery, ±800kV converter transformers of the project are assembled and tested in Xining at an altitude of 2500 m, full-wave lightning ...
Ling Jiang   +12 more
doaj   +1 more source

Shafting Torsional Vibration Analysis of 1000 MW Unit under Electrical Short-Circuit Fault

open access: yesApplied Sciences, 2021
Taking a 1000 MW turbine generator as the research object, the short-circuit fault in electrical disturbance is analyzed. Since it is very difficult to carry out fault analysis experiments and research on actual systems, simulation analysis is one of the
Honggang Pan   +4 more
doaj   +1 more source

Energy-Saving Vibration Impulse Coal Degradation at Finely Dispersed Coal-Water Slurry Preparation

open access: yesMATEC Web of Conferences, 2015
Theoretical and experimental research results of processes of finely dispersed coal-water slurry preparation for further generation of energetic gas in direct flow and vortex gas generator plants have been presented.
Moiseev V.A.   +6 more
doaj   +1 more source

Impulse Air Jet Action on the Convective Heat Exchange Tubular Surfaces in Boilers

open access: yesAerospace, 2022
Calculation and experimental investigations were carried out to determine the parameters of the impulse air jet created by the pneumatic generator of the air-impact system of the cleaning of tubular heat exchangers in boilers.
Valentin Kislovsky, Alexey Melnikov
doaj   +1 more source

IMPULSE WAVES GENERATED BY LANDSLIDES

open access: yesCoastal Engineering Proceedings, 1970
A study programme has been initiated to investigate the impulse waves generated by landslides originating entirely above the water surface It may be seen that the characteristics of this wave depend mainly on the slide volume and the Froude number of the slide upon impact with the water The resulting wave goes through a transition period For the ...
J W Kamphuis, R. J. Bowering
openaire   +2 more sources

Nutritional Quantification and Shelf Life Analysis of Non-thermal Processed Coconut Juice [PDF]

open access: yesE3S Web of Conferences, 2020
Nonthermal processing methods are attracted by many food and beverage industry because it can kill the microbial contamination under mild temperatures used in thermal processing; They can sustain flavours, essential nutrients, and vitamins undergo ...
Kongruang Sasithorn, Kleesuwan Srawut
doaj   +1 more source

Generalized impulse response analysis: General or Extreme? [PDF]

open access: yeseconoquantum, 2013
This note discusses a pitfall of using the generalized impulse response function (GIRF) in vector autoregressive (VAR) models (Pesaran and Shin, 1998). The GIRF is general because it is invariant to the ordering of the variables in the VAR. The GIRF, in fact, is extreme because it yields a set of response functions that are based on extreme identifying
openaire   +3 more sources

Performance Prediction of OWC Type Small Size Wave Power Device with Impulse Turbine

open access: yesJournal of Fluid Science and Technology, 2008
This paper investigates a small size wave power device with an impulse turbine installed in the breakwater near Niigata Port, Japan. The device consists of an air chamber, a turbine, a generator and pressure-relief valves.
Masami SUZUKI   +5 more
doaj   +1 more source

A Compact Avalanche-Transistor-Based Pulse Generator for Transcranial Infrared Light Stimulation (TILS) Experiments

open access: yesInstruments, 2022
A pulse generator using an avalanche transistor operating in current-mode second breakdown driving a 780 nm laser diode is reported. The laser diode is mounted on the skull of a mouse and used in transcranial infrared light stimulation (TILS) experiments.
Abraham Lopez   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy