Results 11 to 20 of about 119,833 (264)

An Antenna Proximity Sensor for Mobile Terminals Using Reflection Coefficient. [PDF]

open access: yesSensors (Basel), 2018
This paper presents a new antenna proximity sensor for mobile terminals based on the measured reflection coefficient using a bidirectional coupler which is positioned between the main antenna and the front-end module.
Lim W, Yang D, Yang Y.
europepmc   +2 more sources

Determination of reflection coefficient contrast in medium over hydrocarbon accumulation [PDF]

open access: yes, 2023
The article analyses the method of searching for hydrocarbon accumulation on the basis of determining the reflection coefficient contrast. Experimental research on hydrocarbon accumulation of the Republic of Belarus is carried out.
Babamuratov, K.   +4 more
core   +1 more source

Generalized Reflection Coefficients [PDF]

open access: yesCommunications in Mathematical Physics, 2015
I consider general reflection coefficients for arbitrary one-dimensional whole line differential or difference operators of order $2$. These reflection coefficients are semicontinuous functions of the operator: their absolute value can only go down when limits are taken.
openaire   +2 more sources

Active Differential Reflection Coefficient of Differentially-Fed Antenna Array

open access: yes, 2022
In this communication, a definition for the active differential reflection coefficient of the differentially-fed antenna array is proposed.  The each antenna is fed by two ports which input the equal-amplitude anti-phase signals.
Guanghui Xu (14212232)
core   +1 more source

Scatter-limited conduction in printed platinum nanofilms [PDF]

open access: yes, 2015
It is demonstrated that thin platinum films may be deposited onto smooth glass substrates using a materials printer and a propriety organometallic ink.
Abdolvand, A.; id_orcid   +4 more
core   +1 more source

Negative reflection coefficients [PDF]

open access: yesTransactions of the Faraday Society, 1965
The reflection coefficient of porous Vycor glass towards aqueous solutions of polyethylene glycol, measured by ultrafiltration, has negative values at lower polymer concentrations. This is in qualitative agreement with the abnormally low and negative values of the apparent osmotic pressure found by Elias for such systems.
Talen, J.L., Staverman, A.J.
openaire   +1 more source

Littlewood–Richardson coefficients for reflection groups

open access: yesAdvances in Mathematics, 2015
In this paper we explicitly compute all Littlewood-Richardson coefficients for semisimple or Kac-Moody groups G, that is, the structure coefficients of the cohomology algebra H^*(G/P), where P is a parabolic subgroup of G. These coefficients are of importance in enumerative geometry, algebraic combinatorics and representation theory.
Arkady Berenstein, Edward Richmond
openaire   +3 more sources

Analysing the significance of small conformational changes and low occupancy states in serial crystallographic data

open access: yesFEBS Open Bio, EarlyView.
This protocol paper outlines methods to establish the success of a time‐resolved serial crystallographic experiment, by means of statistical analysis of timepoint data in reciprocal space and models in real space. We show how to amplify the signal from excited states to visualise structural changes in successful experiments.
Jake Hill   +4 more
wiley   +1 more source

Ultrasonic Reflection for Measurement of Oil Film Thickness and Contact between Dissimilar Materials [PDF]

open access: yes, 2012
The contact between dissimilar materials occurs in many machine elements where one of the contacting parts is manufactured from low modulus materials such as lip seals, o-rings, and metal on polymer prosthetic hip joints.
Gasni, Dedison
core  

Simulated and measured reflection coefficient.

open access: yes, 2018
Simulated and measured reflection coefficient.
Md. Amanath Ullah (5963213)   +6 more
core   +1 more source

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