Results 21 to 30 of about 298,697 (259)

Research on Multi-Domain Fault Diagnosis of Gearbox of Wind Turbine Based on Adaptive Variational Mode Decomposition and Extreme Learning Machine Algorithms

open access: yesEnergies, 2020
Since variational mode decomposition (VMD) was proposed, it has been widely used in condition monitoring and fault diagnosis of mechanical equipment. However, the parameters K and α in the VMD algorithm need to be set before decomposition, which ...
Hui Li   +5 more
doaj   +1 more source

Surface Charge Effects on Adsorption of Solutes by Poplar and Elm Biochars

open access: yesC, 2021
Elm and poplar are two tree species that can provide a large amount of low-value feedstock for biochar production due to their rapid growth rate (poplar), and susceptibility to disease and/or infestation (both elm and poplar).
Steven C. Peterson   +2 more
doaj   +1 more source

M.K.Bakuvinin “Kəşfül-həqayiq” adlı təfsirinin müqəddimələrinin təhlili

open access: yesDin Araşdırmaları Jurnalı, 2019
XIX əsrin sonu XX əsrin əvvəllərində yaşamış Mir Məhəmməd Kərim əl-Bakuvi (1853-1938) Azərbaycanda “Qurani-Kərim”in tərcümə və təfsir edilməsində müstəsna xidmətlərə malik alimlərdən biri olmuşdur.
Murad Ağayev
doaj   +1 more source

Study of the spectral properties of ELM precursors by means of wavelets [PDF]

open access: yes, 2008
The high confinement regime (H-mode) in tokamaks is accompanied by the occurrence of bursts of MHD activity at the plasma edge, so-called edge localized modes (ELMs), lasting less than 1 ms.
Connor J W   +10 more
core   +1 more source

Aspects of the Feeding Behavior of \u3ci\u3eScolytus Multistriatus\u3c/i\u3e (Marsham) (Scoltytidae: Coleoptera) and Implications for Control [PDF]

open access: yes, 2017
(excerpt) Successful protection of elm trees can only be accomplished by means of thorough understanding of the feeding behavior of the smaller European elm bark beetle, Scolytus multistriatus (Marsham). Wolfenbarger and Buchanan (1939) and Whitten (1958)
Butcher, J. W, Riedl, H
core   +2 more sources

Capillary Underfill Flow Simulation as a Design Tool for Flow-Optimized Encapsulation in Heterogenous Integration

open access: yesMicromachines, 2023
As the power electronics landscape evolves, pushing for greater vertical integration, capillary underfilling is considered a versatile encapsulation technique suited for iterative development cycles of innovative integration concepts. Since a defect-free
Lisa Christin Stencel   +5 more
doaj   +1 more source

Effect of resonant magnetic perturbations on low collisionality discharges in MAST and a comparison with ASDEX Upgrade [PDF]

open access: yes, 2014
Sustained ELM mitigation has been achieved on MAST and AUG using RMPs with a range of toroidal mode numbers over a wide region of low to medium collisionality discharges.
A. Kirk   +23 more
core   +3 more sources

Research on factors motivating customers’ intention to use chatbots: Perspective from Vietnam

open access: yesTạp chí Khoa học Đại học Mở Thành phố Hồ Chí Minh - Kinh tế và Quản trị kinh doanh, 2023
Chatbot has become an effective interactive apparatus between firms and customers in electronic commerce. This work aims to identify crucial factors influencing customers’ intention to use chatbots in Vietnam.
Lê Xuân Cù
doaj   +1 more source

Bionomics and harmfulness of Tetraneura ulmi (L.) (Aphidinea, Pemphigidae) in elms

open access: yesJournal of Forest Science, 2003
The paper deals with the bionomics and harmfulness of a common cecidogenous aphid Tetraneura ulmi L. (Pemphigidae) which showed outbreak in elms in Moravia in 2002.
J. Urban
doaj   +1 more source

Aircraft Engines Remaining Useful Life Prediction with an Improved Online Sequential Extreme Learning Machine

open access: yesApplied Sciences, 2020
The efficient data investigation for fast and accurate remaining useful life prediction of aircraft engines can be considered as a very important task for maintenance operations.
Tarek Berghout   +4 more
doaj   +1 more source

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