Results 1 to 10 of about 907,313 (267)

Detection efficiency of 18F-flourodeoxyglucose positron emission tomography/computed tomography for primary tumors in patients with carcinoma of unknown primary [PDF]

open access: yesWorld Journal of Nuclear Medicine, 2020
Carcinoma of unknown primary (CUP) is defined as biopsy proven tumor metastases that remains unidentified after a thorough diagnostic evaluation. The purpose of this study was to find the detection efficiency of 18F-flourodeoxyglucose positron emission ...
Nosheen Fatima   +5 more
doaj   +2 more sources

Research on leak monitoring of the primary circuit of a pressurized water reactor based on the 13N coincidence method [PDF]

open access: yesNuclear Technology and Radiation Protection, 2022
To assess the characteristics of 13N decay, a monitoring method of the primary loop leakage rate based on the γ-γ coincidence method was proposed. In this work, sampling and measurement devices were designed, in which NaI (Tl) crystals were used
Zhao Yue, Qu Guo P., Zhou Jian L.
doaj   +1 more source

Aligning Superconducting Transition-Edge Sensors by Reflected Wave Intensity Measurement

open access: yesSensors, 2023
It is critical to accurately align a quantum photon detector such as a superconducting transition-edge sensor (TES) to an optical fiber in order to optimize its detection efficiency.
Pei-Sa Ma   +2 more
doaj   +1 more source

Anti-coincidence detector unit based on WLS fiber and SiPM readout

open access: yesHe jishu, 2023
BackgroundComplete kinematic measurements in the medium or high-energy region is a common experimental method to study the structure and properties of exotic nuclides on the neutron-rich side.
WANG Ke   +12 more
doaj   +1 more source

Efficient Violence Detection in Surveillance

open access: yesSensors, 2022
Intelligent video surveillance systems are rapidly being introduced to public places. The adoption of computer vision and machine learning techniques enables various applications for collected video features; one of the major is safety monitoring.
Vijeikis, Romas   +2 more
openaire   +3 more sources

Efficient race detection with futures [PDF]

open access: yesProceedings of the 24th Symposium on Principles and Practice of Parallel Programming, 2019
This paper addresses the problem of provably efficient and practically good on-the-fly determinacy race detection in task parallel programs that use futures. Prior works determinacy race detection have mostly focused on either task parallel programs that follow a series-parallel dependence structure or ones with unrestricted use of futures that ...
Robert Utterback   +3 more
openaire   +2 more sources

Efficient grouping for keypoint detection [PDF]

open access: yes2020 25th International Conference on Pattern Recognition (ICPR), 2021
The success of deep neural networks in the traditional keypoint detection task encourages researchers to solve new problems and collect more complex datasets. The size of the DeepFashion2 dataset poses a new challenge on the keypoint detection task, as it comprises 13 clothing categories that span a wide range of keypoints (294 in total).
Alexey Sidnev   +2 more
openaire   +2 more sources

A mathematical model of semiconductor detector gamma-efficiency calibration for rectangular cuboid (brick-shape) sources [PDF]

open access: yesNuclear Technology and Radiation Protection, 2018
Rectangular cuboid (rectangular parallelepiped), i. e., brick-shape sources are not really common in general gamma-spectrometry practice with semiconductor detectors, where axially symmetrical sources prevail.
Mihaljević Nikola N.   +3 more
doaj   +1 more source

TrackingStorm: Visualization Tool for a Storm Detector Network (SDN) in the LF Spectrum

open access: yesBrazilian Archives of Biology and Technology, 2021
During the last year the Group of Atmospheric Electricity Phenomena (FEA/UFPR) developed a short range lightning location network based on a sensor device called Storm Detector Network (SDN), along with a set of algorithms that enables to track storms ...
Augusto Mathias Adams   +6 more
doaj   +1 more source

Calculation of alpha particles detection efficiency for polycarbonate detector using Geant4 toolkit [PDF]

open access: yesJournal of Nuclear Research and Applications, 2022
In the present work, alpha particles detection efficiency of polycarbonate detector (PC) is calculated using Geant4 simulation toolkit. A PC detector with 250 µm thickness and dimension of 2.5 × 2.5 cm2 is considered.
A. Moslehi, S. Baradaran, M. Taheri
doaj   +1 more source

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