Results 111 to 120 of about 819,721 (331)

Nanophotonic boost of intermolecular energy transfer

open access: yesNew Journal of Physics, 2015
We propose a scheme for efficient long-range energy transfer between two distant light emitters separated by more than one wavelength of light, i.e. much beyond the classical Förster radius. A hybrid nanoantenna-waveguide system mediates the transmission
P M de Roque, N F van Hulst, R Sapienza
doaj   +1 more source

Water application uniformity and fertigation in a dripping irrigation set Uniformidade de aplicação de água e fertirrigação em um conjunto de irrigação por gotejamento

open access: yesEngenharia Agrícola, 2012
The purpose of this study was to evaluate the uniformity of distribution coefficient (UDC) and coefficient of variation (CV) of a familiar set of irrigation, classifying it the ASAE standard.
Adilson L. Borssoi   +4 more
doaj   +1 more source

Improved electron emitter [PDF]

open access: yes, 1971
Emitter applies to devices in which a plasma is generated by electron bombardment. Device is conventional hollow cathode modified by addition of integral keeper cap containing small aperture which encloses outlet of the cathode and is held in position by
Nakanishi, S.
core   +1 more source

Metamaterial emitter for thermophotovoltaics stable up to 1400 °C

open access: yesScientific Reports, 2019
High temperature stable selective emitters can significantly increase efficiency and radiative power in thermophotovoltaic (TPV) systems. However, optical properties of structured emitters reported so far degrade at temperatures approaching 1200 °C due ...
M. Chirumamilla   +9 more
semanticscholar   +1 more source

The photoswitchable cannabinoid azo‐HU308 enables optical control of Ca2+ dynamics in INS‐1 β‐cells via off‐target effects on TRPC channels

open access: yesFEBS Open Bio, EarlyView.
Light activation of the photoswitchable cannabinoid ligand azo‐HU308 triggers Ca2+ influx in pancreatic β‐cells through TRPC channels, independent of CB2 cannabinoid receptors. This reveals a non‐GPCR pathway for cannabinoid modulation of β‐cell Ca2+ dynamics and establishes azo‐HU308 as an optical tool to study cannabinoid signaling through TRP ...
Alexander E. G. Viray, James A. Frank
wiley   +1 more source

The Development and Analysis of a Multistage Spraying Method for Liquids in an Ultrasonic Field

open access: yesApplied Sciences
Spraying various liquids (primarily aqueous solutions of various substances) is widely used in various technological processes. For most of them, high dispersibility and a narrow droplet size distribution are essential.
Andrey Shalunov   +4 more
doaj   +1 more source

Microgap thermophotovoltaic systems with low emission temperature and high electric output

open access: yes, 2015
We theoretically show that a thermophotovoltaic (TPV) system enhanced by a wire metamaterial opens the door to a prospective microgap thermophotovoltaics which will combine high electric output with relatively low temperatures of the emitter.
Mirmoosa, M. S.   +2 more
core   +1 more source

Specific Emitter Identification Using Convolutional Neural Network-Based IQ Imbalance Estimators

open access: yesIEEE Access, 2019
Specific Emitter Identification is the association of a received signal to a unique emitter, and is made possible by the naturally occurring and unintentional characteristics an emitter imparts onto each transmission, known as its radio frequency ...
Lauren J. Wong   +2 more
semanticscholar   +1 more source

Raman‐based label‐free microscopic analysis of the pancreas in living zebrafish larvae

open access: yesFEBS Open Bio, EarlyView.
Forward stimulated Raman scattering (F‐SRS) and epi coherent anti‐Stokes Raman scattering (E‐CARS) allow label‐free discrimination of distinct subcellular structures in the pancreas of living zebrafish larvae. Given the straightforward applicability, we anticipate broad implementation of Raman microscopy in other organs and across various biomedical ...
Noura Faraj   +3 more
wiley   +1 more source

IRRIGATION FACILITIES FOR DRIP IRRIGATION OF FRUIT-BEARING APPLE TREES CULTIVATED ON CHERNOZEMES IN ROSTOV REGION

open access: yesНаучный журнал Российского НИИ проблем мелиорации, 2019
The purpose of the research is to assess the known and to develop new approaches to determine the number and location of emitters and create irrigation facilities for drip irrigation of fruit-bearing apple trees, taking into account the parameters of ...
A. S. Shtanko, V. N. Shkura
doaj   +1 more source

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