Results 31 to 40 of about 6,100,243 (291)

High-Throughput Powder Diffraction Using White X-Ray Beam and a Simulated Energy-Dispersive Array Detector

open access: yesEngineering, 2022
High-throughput powder X-ray diffraction (XRD) with white X-ray beam and an energy-dispersive detector array is demonstrated in this work on a CeO2 powder sample on a bending magnet synchrotron beamline at the Shanghai Synchrotron Radiation Facility ...
Xiaoping Wang   +8 more
doaj   +1 more source

Positional correction of a 3D position-sensitive virtual Frisch-grid CZT detector for gamma spectroscopy and imaging based on a theoretical assumption

open access: yesNuclear Engineering and Technology, 2023
The virtual Frisch-grid method for room-temperature radiation detectors has been widely used because of its simplicity and high performance. Recently, side electrodes were separately attached to each surface of the detectors instead of covering the ...
Younghak Kim   +3 more
doaj   +1 more source

Measurement of the inclusive isolated prompt photon cross section in pp collisions at √s=7  TeV with the ATLAS detector [PDF]

open access: yes, 2010
A measurement of the cross section for the inclusive production of isolated prompt photons in pp collisions at a center-of-mass energy [sqrt]s=7  TeV is presented. The measurement covers the pseudorapidity ranges |etaγ|
G. Khoriauli   +999 more
core   +7 more sources

An Energy Harvesting MEMS Frequency Detector

open access: yes2007 IEEE Sensors, 2007
This paper presents an energy harvesting electromagnetic MEMS sensor that can detect the frequency of environmental vibrations. The device is composed of a number of serially connected coils that are fabricated on parylene cantilevers in different lengths, and can output the frequency content of ambient vibrations while harvesting electrical energy in ...
Sari, Ibrahim   +2 more
openaire   +2 more sources

A Measurement of Jet Shapes in Proton-Proton Collisions at 7.0 TeV Center-of-Mass Energy with the ATLAS Detector at the Large Hadron Collider [PDF]

open access: yes, 2010
A study of jet shapes is presented using 300 nb−1 of proton-proton collision data collected at a center of mass energy of 7 TeV using the ATLAS detector at the Large Hadron Collider.
Marshall, Zachary L   +1 more
core   +1 more source

Expectation-Maximization Aided Modified Weighted Sequential Energy Detector for Distributed Cooperative Spectrum Sensing

open access: yesIEEE Access
Energy detector (ED) is a popular choice for distributed cooperative spectrum sensing because it does not need to be cognizant of the primary user (PU) signal characteristics.
Mohammed Rashid, Jeffrey A. Nanzer
doaj   +1 more source

Performance comparison of centralised and distributed CSS over fading channels in cognitive radio

open access: yesCogent Engineering, 2017
Spectrum sensing is the important aspect of cognitive radio (CR). In order to use the vacant spectrum, cognitive radio user must be able to identify the presence of empty spectrum efficiently.
Girraj Sharma, Ritu Sharma
doaj   +1 more source

Effectiveness of Resistance Intradialytic Exercise Compared to Aerobic Intradialytic Exercise for Patients With Chronic Kidney Disease: A Randomized Controlled Clinical Trial

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Patients with chronic kidney disease undergoing hemodialysis commonly experience reduced physical function, fatigue, poor sleep quality, and impaired health‐related quality of life. Intradialytic exercise has been proposed as a non‐pharmacological strategy to improve these outcomes.
Klebson da Silva Almeida   +6 more
wiley   +1 more source

Measurement Settings Influence upon Energy Detection of TETRA Signals

open access: yesAdvances in Electrical and Computer Engineering, 2010
The present paper aims to determine the optimum parameters for the detection of downlink TETRA signals, through energy measurement. In order to optimize the detection parameters we have assessed the probabilities of detection and of false alarm, based ...
BECHET, P., MITRAN, R.
doaj   +1 more source

Energy detectors and asymptotic symmetries

open access: yesJournal of High Energy Physics
A bstract We study detector operators measuring energy to a power ∆ – 2 at null infinity in four-dimensional gauge theories and gravity. These operators transform as conformal primaries on the celestial sphere and provide a natural basis for describing ...
Hernán A. González, Jakob Salzer
openaire   +2 more sources

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