Results 61 to 70 of about 68,837 (305)

Influence of Test Temperature and Test Frequency on Fatigue Life of Aluminum Alloy EN AW‐2618A

open access: yesAdvanced Engineering Materials, EarlyView.
The influence of test temperature and test frequency on the fatigue life of EN AW‐2618A is investigated. High‐cycle fatigue tests are performed at different test temperatures and frequencies on the 1000 h/230°C overaged state. Both test parameters reduce fatigue life due to time‐dependent damage mechanisms.
Ying Han   +5 more
wiley   +1 more source

A METHOD OF DIAGNOSING OIL-FILLED ELECTRICAL EQUIPMENT WITH APPLICATION OF A CONSTANT MAGNETIC FIELD

open access: yesВестник Северо-Кавказского федерального университета, 2022
Transformer oil is widely used in high-voltage electrical equipment and serves as a dielectric, as well as a cooling medium. It consists of a complex mixture of hydrocarbon compositions with various impurity compounds.
G. Kolesnikov, N. Shchikunov
doaj  

Influence of oil–paper configuration on electric field distribution of main insulation structure on valve‐side winding of UHV‐DC converter transformer

open access: yesIET Science, Measurement & Technology, 2022
The main insulation structure of the valve‐side winding of converter transformer bears the effect of AC and DC superimposed voltage during operation.
Lijun Yang   +3 more
doaj   +1 more source

Prediction of remaining life of power transformers based on left truncated and right censored lifetime data [PDF]

open access: yes, 2008
Prediction of the remaining life of high-voltage power transformers is an important issue for energy companies because of the need for planning maintenance and capital expenditures.
Hong, Yili   +4 more
core   +7 more sources

Rational Fine‐Tuning of MOF Pore Metrics: Enhanced SO2 Capture and Sensing with Optimal Multi‐Site Interactions

open access: yesAdvanced Functional Materials, EarlyView.
A pore tuning strategy to amplify the multi‐site MOF‐SO2 interactions is proposed to achieve an enhanced trace SO2 capture and chemiresistive sensing in highly stable isostructural DMOFs by annelating benzene rings. This work provides a facile strategy to achieve tailor‐made stable MOF materials for specific multifunctional applications.
Shanghua Xing   +9 more
wiley   +1 more source

Characterization of Bio-Oil and Upgradation to Transformer Oil [PDF]

open access: yes, 2015
By distillation of crude oil the transformer oil is manufacture. The demand and price increase of crude oil day by day. So we need a renewable source for its generation.
Behera, Saroj Kumar
core  

Demonstration of an All‐Optical AND Gate Mediated by Photochromic Molecules

open access: yesAdvanced Functional Materials, EarlyView.
A logic AND gate that runs on photons is demonstrated. It relies on two spatially separated photochromic molecules that work in tandem. Abstract The realization of a photonic logic AND gate, i.e. a logic AND gate that runs on photons rather than electrons, and where all steps are controlled by light, is demonstrated. In a proof‐of‐principle experiment,
Heyou Zhang   +7 more
wiley   +1 more source

Analisis Pengaruh Pembebanan terhadap Kekuatan Dielektrik Minyak Isolasi Transformator 6,6 KV/380 V di PT.INTIBENUA PERKASATAMA Dumai [PDF]

open access: yes, 2017
The increment of electric energy comsumption causes the transformer to experience a high load and needs to be detected and treated to increase reability and reduce failure. Dielectric strength is one of detection parameter used.
Firdaus, F. (Firdaus)   +1 more
core  

Power optimization for a hydrocarbon industrial plant using a genetic algorithm [PDF]

open access: yes, 2014
In this paper, a genetic algorithm (GA) is considered for optimizing electrical power loss for a real hydrocarbon industrial plant as a single objective problem.
Abido, MA, Al-Hajri, MT, Darwish, MK
core   +1 more source

Near‐Infrared Emitting Lanthanide Catecholate Giant Single Crystals – Morphology Control and Photon Down‐Conversion

open access: yesAdvanced Functional Materials, EarlyView.
Controlled syntheses of lanthanide coordination polymers based on the dihydroxybenzoquinone (DHBQ) organic linker afforded large single crystals of Ln‐DHBQ CPs (Ln = Yb, Nd). A novel structural variant of Yb‐DHBQ is identified by means of single crystal diffraction analysis.
Marina I. Schönherr   +7 more
wiley   +1 more source

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