Results 31 to 40 of about 7,607,101 (286)

Effect of Graphene Coating on Space Charge Characteristic of XLPE and Semiconductive Layer at Different Temperatures

IEEE Access, 2019
DC cross-linked polyethylene (XLPE) power cables are being used recently for HV/EHV applications, the reliability of which is claimed to be significantly affected by space charge accumulation in the insulating material.
Zhipeng Lei, Davide Fabiani, Chuanyang Li, Simone Vincenzo Suraci, Giacomo Selleri, Tao Han, Marco Speranza, Filippo Grolli, Fabrizio Palmieri   +8 more
doaj   +1 more source

Engineering peptides into antibodies—opportunities and strategies for therapeutic innovation

FEBS Letters, EarlyView.
Peptides and antibodies occupy complementary therapeutic niches. Peptides recognize difficult targets in a compact format, while antibodies add specificity, long half‐life, and effector functions. This review examines strategies that merge both modalities—peptide grafting into loops, terminal and Fc fusions, and bioconjugation—highlighting how ...
Jinling Wang, Ruslana Romaniuk, Hristo L. Svilenov   +2 more
wiley   +1 more source

Structural and biochemical analysis of a B12 superbinder

FEBS Letters, EarlyView.
BtuG proteins are vitamin B12 scavengers in Bacteroides thetaiotaomicron, a dominant human gut bacterium. We present crystal structures of three BtuG homologs bound to cobalamin and its precursor cobinamide, revealing picomolar binding affinities, among the highest known for any natural protein.
Jose M. Martinez Felices, Jacob J. Whittaker, Dirk J. Slotboom, Albert Guskov   +3 more
wiley   +1 more source

Direct measurement of exciton dissociation energy in polymers

AIP Advances, 2017
Exciton dissociation energy was obtained based on the comparison of thickness of the space charge region estimated from the measurement of capacitance of prepared Schottky diode and from the measurement of photovoltage spectra.
J. Toušek, J. Toušková, R. Chomutová, B. Paruzel, J. Pfleger   +4 more
doaj   +1 more source

Structures of mycobacterial 3‐methylcrotonyl‐CoA carboxylase reveal carrier‐domain translocation between catalytic sites

FEBS Letters, EarlyView.
Mycobacterial 3‐methylcrotonyl‐CoA carboxylase uses a mobile biotin‐carrying domain to shuttle a carboxyl group between two catalytic sites, enabling carboxylation of 3‐methylcrotonyl‐CoA during leucine breakdown. Cryo‐electron microscopy captures the carrier at both sites and reveals an inward loop movement that may prevent futile rebinding to the ...
Ajit Yadav, Bogdan I. Florea, Sebastian Geibel   +2 more
wiley   +1 more source

Development of a novel signal restoration algorithm to eliminate the distorted components in space charge measurement excited by femtosecond laser irradiation

High Voltage
For the space charge measurement method with optical excitation for electrical insulation, the distortion of the excitation laser on the measurement signal and the accumulation of space charge have not been discussed before.
Tianrun Qi, Hanwen Ren, Haoyu Gao, Qingmin Li, Yidan Ma, Yiqun Ma, Tao Xiao   +6 more
doaj   +1 more source

Benchmarking of 3D space charge codes using direct phase space measurements from photoemission high voltage dc gun

Physical Review Special Topics. Accelerators and Beams, 2008
We present a comparison between space charge calculations and direct measurements of the transverse phase space of space charge dominated electron bunches from a high voltage dc photoemission gun followed by an emittance compensation solenoid magnet. The
Ivan V. Bazarov, Bruce M. Dunham, Colwyn Gulliford, Yulin Li, Xianghong Liu, Charles K. Sinclair, Ken Soong, Fay Hannon   +7 more
doaj   +1 more source

Study of electric field distorted by space charges under positive lightning impulse voltage

Results in Physics, 2018
Actually, many insulation problems are related to electric fields. And measuring electric fields is an important research topic of high-voltage engineering.
Zezhong Wang, Yinan Geng
doaj   +1 more source

Soft motions encoded by the fold and mediated by conserved hinge sites drive V‐ATPase allosteric machinery and autoinhibition

FEBS Letters, EarlyView.
Vacuolar H+‐ATPase (V‐ATPase) is a multisubunit rotary proton pump that acidifies intracellular compartments. Using elastic network models, we identified conserved hinge residues that govern its large‐scale functional motions. We show that intrinsically encoded ‘soft modes’ drive critical functional transitions, including rotary catalysis and ...
Diksha Parwana, Xiaowei Bogetti, Stuti Sharma, Ivet Bahar   +3 more
wiley   +1 more source

Equivalent transmission line characterization and multi‐layer material measurement analysis of the signal conversion process in the pulsed electro‐acoustic method

IET Science, Measurement & Technology
This paper studies the equivalent transmission line model of the pulsed electro‐acoustic (PEA) method with its applications. Based on the consistency of acoustic wave behaviour inside lossy acoustic materials and voltage wave propagation in transmission ...
Hanwen Ren, Siyang Zhao, Jian Mu, Haoyu Gao, Tianrun Qi, Zhiyun Han, Zhihui Li, Qingmin Li   +7 more
doaj   +1 more source