نتایج جستجو برای: directional excitation

تعداد نتایج: 97253  

Journal: :Optics express 2013
J van de Groep A Polman

High-performance integrated optics, solar cells, and sensors require nanoscale optical components at the surface of the device, in order to manipulate, redirect and concentrate light. High-index dielectric resonators provide the possibility to do this efficiently with low absorption losses. The resonances supported by dielectric resonators are both magnetic and electric in nature. Combined scat...

Journal: :APL photonics 2023

Integrated photonic devices provide significant advantages over their conventional counterparts, such as a drastically reduced footprint well compatibility with other or electronic circuitry. In this work, we present high-precision optical position sensor fabricated on silicon-on-insulator platform. The relies the principle of position-dependent directional waveguide coupling upon excitation mo...

Journal: :journal of chemical and petroleum engineering 2014
abdolnabi hashemi afshin ghanbarzadeh siamak hosseini

the dogleg severity is one of the most important parameters in directional drilling. improvement of these indicators actually means choosing the best conditions for the directional drilling in order to reach the target point. selection of high levels of the dogleg severity actually means minimizing well trajectory, but on the other hand, increases fatigue in drill string, increases torque and d...

Journal: :transactions on combinatorics 2013
p.siva kota reddy u. k. misra

let $g=(v, e)$ be a graph. by emph{directional labeling (ord-labeling)} of an edge $x=uv$ of $g$ by an ordered $n$-tuple$(a_1,a_2,...,a_n)$, we mean a labeling of the edge $x$ such thatwe consider the label on $uv$ as $(a_1,a_2,...,a_n)$ in thedirection from $u$ to $v$, and the label on $x$ as$(a_{n},a_{n-1},...,a_1)$ in the direction from $v$ to $u$. inthis paper, we study graphs, called emph{...

Journal: :Advanced photonics research 2023

Organic Light-Emitting Diodes light-emitting diodes (OLEDS) with directional surface emission are promising candidates for applications such as miniaturized optical sensor systems and digital signage. As described in article number 2200143 by Janek Buhl, Martina Gerken, colleagues, tailoring characteristics resonance effects can improve light utilization overall efficiency. The image shows a bl...

Journal: :The Journal of neuroscience : the official journal of the Society for Neuroscience 2002
W Rowland Taylor David I Vaney

The synaptic conductance of the On-Off direction-selective ganglion cells was measured during visual stimulation to determine whether the direction selectivity is a property of the circuitry presynaptic to the ganglion cells or is generated by postsynaptic interaction of excitatory and inhibitory inputs. Three synaptic asymmetries were identified that contribute to the generation of direction-s...

2010
Yu Zhang Yong Li

More and more solid-state magnetic field sensors such as Hall devices are used in eddy current inspection (EC) to acquire magnetic field signals. This work extends the previous analytical model, i.e. 2D Extended Truncated Region Eigenfunction Expansion (ETREE) of EC, and focuses on establishment of 3D ETREE of multi-frequency eddy current inspection (MFEC) on stratified conductors, while taking...

Journal: :Nature communications 2014
A S Alnaser M Kübel R Siemering B Bergues Nora G Kling K J Betsch Y Deng J Schmidt Z A Alahmed A M Azzeer J Ullrich I Ben-Itzhak R Moshammer U Kleineberg F Krausz R de Vivie-Riedle M F Kling

Subfemtosecond control of the breaking and making of chemical bonds in polyatomic molecules is poised to open new pathways for the laser-driven synthesis of chemical products. The break-up of the C-H bond in hydrocarbons is an ubiquitous process during laser-induced dissociation. While the yield of the deprotonation of hydrocarbons has been successfully manipulated in recent studies, full contr...

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