Results 41 to 50 of about 819,721 (331)

Comparison сharacreristics of optrons with an open optical channel [PDF]

open access: yesTekhnologiya i Konstruirovanie v Elektronnoi Apparature, 2008
In the present work characteristics of industrial optical sensors for objects positioning in space are considered. Comparison of their parameters with the parameters of the angular-linear displacement sensor designed has been made.
Shvets O. H., Ryukhtin V. V.
doaj  

First direct observation of two protons in the decay of $^{45}$Fe with a TPC [PDF]

open access: yes, 2007
The decay of the ground-state two-proton emitter 45Fe was studied with a time-projection chamber and the emission of two protons was unambiguously identified.
B. Blank   +19 more
core   +4 more sources

Luminescence of Higher Mushrooms [PDF]

open access: yesЖурнал Сибирского федерального университета: Серия Биология, 2012
The review highlights the results of experimental studies on fungal luminescence carried out during last two centuries. Present concepts on the luminescent system and light emission mechanism in higher fungi are discussed.
Vladimir S. Bondar   +2 more
doaj  

Development and Demonstration of a TDOA-Based GNSS Interference Signal Localization System [PDF]

open access: yes, 2012
Background theory, a reference design, and demonstration results are given for a Global Navigation Satellite System (GNSS) interference localization system comprising a distributed radio-frequency sensor network that simultaneously locates multiple ...
Bhatti, Jahshan A.   +2 more
core   +1 more source

Plasmon–emitter interactions at the nanoscale [PDF]

open access: yesNature Communications, 2019
Plasmon–emitter interactions are of central importance in modern nanoplasmonics and are generally maximal at short emitter–surface separations. However, when the separation falls below 10–20 nm, the classical theory deteriorates progressively due to its ...
P. A. Gonçalves   +6 more
semanticscholar   +1 more source

A dual-selective thermal emitter with enhanced subambient radiative cooling performance

open access: yesNature Communications
Radiative cooling is a zero-energy technology that enables subambient cooling by emitting heat into outer space (~3 K) through the atmospheric transparent windows. However, existing designs typically focus only on the main atmospheric transparent window (
Xueke Wu   +17 more
semanticscholar   +1 more source

Large-scale quantum-emitter arrays in atomically thin semiconductors [PDF]

open access: yesNature Communications, 2016
Quantum light emitters have been observed in atomically thin layers of transition metal dichalcogenides. However, they are found at random locations within the host material and usually in low densities, hindering experiments aiming to investigate this ...
Carmen Palacios-Berraquero   +9 more
semanticscholar   +1 more source

Assessment of RANS Models for Milli-Channel Turbulent Flow in Drip Irrigation Emitter

open access: yesAgronomy
Accurate numerical simulation of turbulent flow within the milli-channels of drip irrigation emitters has long been a significant challenge. This paper presents a comprehensive Reynolds-Averaged Navier–Stokes (RANS) modeling-based analysis of the flow ...
Qi Feng   +5 more
doaj   +1 more source

Chiral topological photonics with an embedded quantum emitter [PDF]

open access: yesOptica, 2019
Topological photonic interfaces support topologically non-trivial optical modes with helical character. When combined with an embedded quantum emitter that has a circularly polarised transition dipole moment, a chiral quantum optical interface is formed ...
M. Jalali Mehrabad   +7 more
semanticscholar   +1 more source

Feeding Emitters for Microirrigation with a Digestate Liquid Fraction up to 25% Dilution Did Not Reduce Their Performance

open access: yesAgronomy, 2020
Irrigation with wastewater can strongly contribute to the reduction of water abstraction in agriculture with an especial interest in arid and semiarid areas.
Simone Bergonzoli   +8 more
doaj   +1 more source

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