Results 51 to 60 of about 816,463 (187)

Figure of Merit for Servo Motor [PDF]

open access: yesNature, 1950
A SERVO motor must control the position of a mechanism (valve, rudder, gear, etc.) in accordance with varying requirements. The figure of merit of such a motor indicates how speedily the motor is able to respond to these requirements.
openaire   +2 more sources

Optimization of quantum state tomography in the presence of experimental constraints

open access: yes, 2014
In the absence of experimental constraints, optimal measurement schemes for quantum state tomography are well understood. We consider the scenario where the experimenter doesn't have arbitrary freedom to construct their measurement set, and may therefore
Branczyk, Agata M.   +1 more
core   +1 more source

Polaritonic figure of merit of plane structures

open access: yesOptics Express, 2017
Based on the ability of plane structures to simultaneously optimize the propagation, confinement, and energy of surface plasmon-polaritons or surface phonon-polaritons, we develop the polaritonic figure of merit Z = βRΛ2/δ, where βR, Λ and δ are the longitudinal wave vector, propagation length, and penetration depth, respectively.
Jose Ordonez-Miranda   +6 more
openaire   +2 more sources

Coefficient of performance at maximum figure of merit and its bounds for low-dissipation Carnot-like refrigerators

open access: yes, 2012
The figure of merit for refrigerators performing finite-time Carnot-like cycles between two reservoirs at temperature $T_h$ and $T_c$ ($
A. Calvo Hernández   +9 more
core   +1 more source

NANOSTRUCTURING AS A WAY FOR THERMOELECTRIC EFFICIENCY IMPROVEMENT [PDF]

open access: yesНаучно-технический вестник информационных технологий, механики и оптики, 2014
The urgency of thermoelectric energy conversion is proved. Perspectives of nanostructures usage as thermoelectric materials are shown. The authors have systematized and generalized the methods and investigation results of bulk nanostructure ...
L. V. Bochkov, I. A. Nefedova, R. Ahiska
doaj  

Guided Mode Resonance Sensors with Optimized Figure of Merit

open access: yesNanomaterials, 2019
The guided mode resonance (GMR) effect is widely used in biosensing due to its advantages of narrow linewidth and high efficiency. However, the optimization of a figure of merit (FOM) has not been considered for most GMR sensors.
Yi Zhou, Bowen Wang, Zhihe Guo, Xiang Wu
doaj   +1 more source

Combining Size and Shape in Weak Lensing

open access: yes, 2013
Weak lensing alters the size of images with a similar magnitude to the distortion due to shear. Galaxy size probes the convergence field, and shape the shear field, both of which contain cosmological information.
Alsing, Justin   +2 more
core   +1 more source

Frictional Figures of Merit for Single Layered Nanostructures [PDF]

open access: yesPhysical Review Letters, 2012
We determined frictional figures of merit for a pair of layered honeycomb nanostructures, such as graphane, fluorographene, MoS$_2$ and WO$_2$ moving over each other, by carrying out ab-initio calculations of interlayer interaction under constant loading force.
Cahangirov, S.   +4 more
openaire   +8 more sources

Thermoelectric properties of carbon nanotube/silicone rubber composites

open access: yesJournal of Experimental Nanoscience, 2017
In this paper, we have studied the relevant physical quantities to the figure of merit of carbon nanotube (CNT)/polydimethylsiloxane composites at different loadings, and found that with increasing the CNT loadings, the electrical conductivity jumps ...
Zhen-Wu Li
doaj   +1 more source

Editorial: Figures Of No Merit [PDF]

open access: yesOptical Engineering, 1986
The subject of this editorial is figures-not the kinds of figures seen on the beach or those displayed in the columns of a ledger. The figures of concern here are those included with manuscripts submitted to Optical Engineering. You might ask, "Why an editorial on figures?" I'll tell you why-because we have been receiving too many crummy ones!
openaire   +1 more source

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