Results 41 to 50 of about 183,760 (277)

The monitoring system for the aerogel Cherenkov counter of the BELLE detector [PDF]

open access: yes, 1998
We report on a design and performances of a monitoring system developed for the aerogel Cherenkov counters (ACC) of the BELLE detector. The system consists of blue LEDs, a diffuser box, and optical distributors which distribute the LED light to the ACC ...
A. Murakami   +19 more
core   +2 more sources

Operational field lighting optimization studies to maximize biological imaging contrast

open access: yesSt. Petersburg Polytechnical University Journal: Physics and Mathematics, 2019
Using an experimental setup based on a dynamically controlled led lighting system, the optimal lighting conditions for contrast imaging of biological tissues in surgical operations were investigated.
Aladov Andrei   +7 more
doaj   +1 more source

The effect of radiation of LED modules on the growth of dill (Anethum graveolens L.)

open access: yesOpen Life Sciences, 2016
Light quality is thought to affect the growth and development of plants. We examined how light influences the growth and content of some chemical compounds in dill (Anethum graveolens L.). The plants were grown under different light quality. The share of
Frąszczak Barbara   +3 more
doaj   +1 more source

Thermodynamics, kinetics, and technology of synthesis of epitaxial layers of silicon carbide on silicon by coordinated substitution of atoms, and its unique properties. A review

open access: yesКонденсированные среды и межфазные границы, 2022
This review covers studies dedicated to the search for and development of sorbents for the extraction of the caesium-137. The review analyses a new method for growing SiC epitaxial films on Si, which is based on the coordinated substitution ...
Sergey A. Kukushkin, Andrey V. Osipov
doaj   +1 more source

Fabrication technology for high light-extraction ultraviolet thin-film flip-chip (UV TFFC) LEDs grown on SiC

open access: yes, 2018
The light output of deep ultraviolet (UV-C) AlGaN light-emitting diodes (LEDs) is limited due to their poor light extraction efficiency (LEE). To improve the LEE of AlGaN LEDs, we developed a fabrication technology to process AlGaN LEDs grown on SiC into
Albadri, Abdulrahman   +9 more
core   +1 more source

Enhanced overall efficiency of GaInN-based light-emitting diodes with reduced efficiency droop by Al-composition-graded AlGaN/GaN superlattice electron blocking layer [PDF]

open access: yes, 2019
AlxGa1-xN/GaN superlattice electron blocking layers (EBLs) with gradually decreasing Al composition toward the p-type GaN layer are introduced to GaInN-based high-power light-emitting diodes (LEDs).
David Meyaard   +8 more
core   +1 more source

Carcinomas and Carcinoid Tumors of the Lungs and Bronchi in Children and Adolescents: The EXPeRT Recommendations

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Primary lung carcinomas and bronchial carcinoid tumors (BC) are very rare malignancies in childhood. While typical BC and mucoepidermoid carcinomas are mostly low‐grade, localized tumors with a more favorable prognosis than in adults, necessitating avoidance of overtreatment, adenocarcinomas of the lung are often diagnosed at advanced disease ...
Michael Abele   +19 more
wiley   +1 more source

Dynamic versus Concurrent Lighting with Red and Blue Light-emitting Diodes as the Sole Light Source Can Potentially Improve Campanula Stock Plant Morphology for Cutting Production

open access: yesHortScience, 2021
Short campanula (Campanula portenschlagiana ‘PGM Get MEE’®) stock plants present a difficulty in machine-harvesting of cuttings. Light adjustment may be an effective approach to mediate plant elongation.
Devdutt Kamath   +3 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

APPLICATION OF ULTRAVIOLET LED SYSTEMS IN THE GRAIN PROCESSING AND COMPOUND FEED INDUSTRIES

open access: yesZernovì Produkti ì Kombìkorma, 2023
The materials of the article outline the features of the use of ultraviolet LED systems in industry, and propose a solution for their use in the grain processing and compound feed industry.
K. Yeryganov, B. Iegorov
doaj   +1 more source

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