Results 21 to 30 of about 2,530,249 (265)

An Energy-Efficient ADO-OFDM System for Optical Wireless Communication

open access: yesIEEE Photonics Journal, 2023
This paper proposes an energy-efficient asymmetrically clipped direct-current (DC) biased optical orthogonal frequency division multiplexing (EEADO-OFDM) scheme, which replaces the fixed DC bias of DC biased optical OFDM (DCO-OFDM) branch with a adaptive
Wei-Wen Hu
doaj   +1 more source

Direct instanton effects in current-current correlators [PDF]

open access: yesNuclear Physics B, 1995
24 pages ...
Nason, P, Palassini, M
openaire   +2 more sources

QR-DESO-Based Active Disturbance Rejection Control for PMSGs Under Aperiodic and Periodic Disturbances

open access: yesMachines
Permanent magnet synchronous generators (PMSGs) are inevitably subject to aperiodic and periodic disturbances due to complex operating conditions and internal coupling effects.
Junpeng Cheng   +6 more
doaj   +1 more source

Dielectric characteristic of dichlorodifluoromethane (R12) gas and mixture with [inline-formula]/air as an alternative to [inline-formula] gas

open access: yesHigh Voltage, 2017
In this study, dichlorodifluoromethane (R12) gas and mixtures with nitrogen (N(2)) and air at different pressures and mixing ratios have been investigated and showed good alternative to [inline-formula] gas in ...
Rahmat Ullah   +4 more
doaj   +1 more source

Design of Visual Detection Algorithm for Loose Screw Faults in Internal Structure of Energy Storage Lithium-Ion Battery Packs

open access: yesInternational Transactions on Electrical Energy Systems
In recent years, with the rapid development of renewable energy in China, the installed capacity of new energy storage systems—particularly lithium-ion batteries—has grown significantly.
Li Jin   +6 more
doaj   +1 more source

European Standard Clinical Practice Guideline and EXPeRT Recommendations for the Diagnosis and Management of Gastroenteropancreatic Neuroendocrine Neoplasms in Children and Adolescents

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Pediatric gastroenteropancreatic neuroendocrine neoplasms (GEP‐NENs) are extremely rare and clinically heterogeneous. Management has largely been extrapolated from adult practice. This European Standard Clinical Practice Guideline (ESCP), developed by the EXPeRT network in collaboration with adult NEN experts, provides (adult) evidence ...
Michaela Kuhlen   +23 more
wiley   +1 more source

Solid Pseudopapillary Neoplasm of the Pancreas in Children and Adolescents: Expert Recommendations

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Solid pseudopapillary neoplasm of the pancreas (SPN) is a rare low‐grade malignant exocrine pancreatic tumor, mostly discovered during the second decade of life in females, with a very good prognosis, provided microscopically complete surgical excision is achieved.
Sabine Irtan   +18 more
wiley   +1 more source

Multi-level adaptive coordinated AC fault ride-through control strategy for hybrid cascaded UHVDC transmission system

open access: yes电力工程技术
Hybrid cascaded ultra high voltage direct current (UHVDC) integrates the advantages of line commutated converters (LCC) and voltage source converters (VSC).
LYU Yanbei   +5 more
doaj   +1 more source

Ovarian Sex Cord Stromal Tumors in Children and Adolescents—The European Standard Clinical Practice Recommendations

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT As part of the European Cooperative Study Group for Paediatric Rare Tumours initiative, we developed standard clinical practice guidelines for ovarian sex cord stromal tumors, based on comprehensive national and international cohort analyses, literature review, and a final expert consensus conference.
Dominik T. Schneider   +15 more
wiley   +1 more source

Metabolic investigation in Gluconacetobacter xylinus and its bacterial cellulose production under a direct current electric field

open access: yesFrontiers in Microbiology, 2016
The effects of a direct current (DC) electric field on the growth and metabolism of Gluconacetobacter xylinus were investigated in static culture. When a DC electric field at 10 mA was applied using platinum electrodes to the culture broth, bacterial ...
Miao eLiu   +6 more
doaj   +1 more source

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