Results 71 to 80 of about 5,429,621 (290)

Space charge behaviour in oil and impregnated pressboard combined insulation system [PDF]

open access: yes, 2014
Dielectric performance of oil-pressboard insulation system used in high voltage direct current (HVDC) convertor transformers can be affected by the presence of space charge.
Hao, Miao   +9 more
core   +1 more source

Structural and biochemical insights into the thermostable esterase Ta0887 from Thermoplasma acidophilum

open access: yesFEBS Open Bio, EarlyView.
In this study, a novel esterase from the thermoacidophilic archaeon Thermoplasma acidophilum was biochemically and structurally characterized. Our results demonstrate that Ta0887 is a highly thermostable esterase that preferentially hydrolyzes p‐nitrophenyl hexanoate and possesses an α‐helical cap domain that likely contributes to its substrate ...
Alejandro Delgado‐Rey   +4 more
wiley   +1 more source

Characterization of the key membrane protein cytochrome Cyc2 from Ghiorsea bivora

open access: yesFEBS Open Bio, EarlyView.
This study reports the first detailed biochemical analysis of Cyc2TAG1_1, a cytochrome protein involved in microbial iron oxidation. We produced and purified this enzyme in E. coli, then measured its iron‐oxidizing efficiency, and characterized its electrical and structural properties.
Josiane Azizi   +6 more
wiley   +1 more source

Fluorination: A strategy to tune the interactions of molecules and nanoscale systems with biological matter

open access: yesFEBS Open Bio, EarlyView.
This minireview explores fluorination as a key strategy to optimize therapeutic molecules and nanocarriers. By incorporating different fluorinated motifs—from single atoms to linear and branched chains—drug delivery, cellular uptake, and colloidal stability can be improved and fine‐tuned.
Martina Beccalli   +2 more
wiley   +1 more source

Temperature effect on space charge dynamics in XLPE insulation

open access: yes, 2007
This paper reports on space charge evolution in crosslinked polyethylene (XLPE) planar samples approximately 1.20 mm thick subjected to electric stress level of 30 kVdc/mm under four temperature 25 oC, 50 oC, 70 oC and 90 oC for 24 hours.
Chong, Y L, Chen, G, Ho, Y F F
core  

Effect of applied DC voltages and temperatures on space charge behaviour of multi-layer oil-paper insulation

open access: yes, 2009
In this paper, space charge in a multi-layer oil-paper insulation system was investigated using the pulsed electroacoustic (PEA) technique. A series of measurements had been carried following subjection of the insulation system to different applied ...
Liao, R, Fu, M, Tang, Chao, Chen, George
core   +1 more source

Space Charge Behavior in Ethylene Propylene Rubber Under a 50-Hz AC Electric Field

open access: yesIEEE Access, 2019
In this study, the space charge behavior in ethylene propylene rubber (EPR) under a 50-Hz AC field is studied based on the variation of space charge response, FTIR spectra and impurity contents inside EPR with thermal treatment.
Chang Dai   +4 more
doaj   +1 more source

UNIFICATION OF SPINS AND CHARGES IN GRASSMANN SPACE? [PDF]

open access: yesModern Physics Letters A, 1995
In a space of d(d > 5) ordinary and d Grassmann coordinates, fields manifest in an ordinary four-dimensional subspace as spinor (1/2, 3/2), scalar, vector or tensor fields with the corresponding charges, according to two kinds of generators of the Lorentz transformations in the Grassmann space.
openaire   +2 more sources

Hydrogel platforms for 3D cardiac tissue engineering and fibrotic disease modelling

open access: yesFEBS Open Bio, EarlyView.
Hydrogel‐based cardiac tissue models are advancing our understanding of heart health and disease. By incorporating electrical conductivity, aligned structures, and tunable mechanical properties, these platforms better replicate the complex environment of native heart tissue.
Harrison Porritt   +2 more
wiley   +1 more source

Inhibition Effect of Graphene on Space Charge Injection and Accumulation in Low-Density Polyethylene

open access: yesNanomaterials, 2018
Space charge injection and accumulation is attracting much attention in the field of dielectric insulation especially for electronic devices, power equipment and so on.
Zhonglei Li   +4 more
doaj   +1 more source

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