Results 21 to 30 of about 378,573 (266)

Measurement of the cosmic optical background using the long range reconnaissance imager on New Horizons

open access: yesNature Communications, 2017
The cosmic optical background is an important cosmological observable. Here the authors show that a direct observation of the background brightness from the outer solar system can be obtained by the LORRI instrument aboard the New Horizons mission, on ...
Michael Zemcov   +5 more
doaj   +1 more source

Fast Training Data Generation for Machine Learning Analysis of Cosmic Ray Showers

open access: yesIEEE Access, 2023
Applying Machine Learning (ML) methods for the analysis of muon lateral distributions in Extensive Air Showers detected by citizen science projects, while taking into account the spatial distribution of detectors requires enormous training data sets ...
Tomasz Hachaj   +2 more
doaj   +1 more source

Evaluation of a High-Sensitivity Organ-Targeted PET Camera

open access: yesSensors, 2022
The aim of this study is to evaluate the performance of the Radialis organ-targeted positron emission tomography (PET) Camera with standardized tests and through assessment of clinical-imaging results.
Justin Stiles   +8 more
doaj   +1 more source

Methane-specific gas detectors: the effect of natural gas composition [PDF]

open access: yes, 2010
Certain gas sensors, particularly those based on optical spectroscopy, have enabled the detection of individual gas species such as methane with low cross-sensitivity to other gases.
Hodgkinson, Jane   +3 more
core   +1 more source

Chromatographic-Based Platforms as New Avenues for Scientific Progress and Sustainability

open access: yesMolecules, 2022
Chromatography was born approximately one century ago and has undergone outstanding technological improvements in innovation, research, and development since then that has made it fundamental to advances in knowledge at different levels, with a relevant ...
José S. Câmara   +4 more
doaj   +1 more source

X-ray imaging using single photon processing with semiconductor pixel detectors [PDF]

open access: yes, 2003
More than 10 years experience with semiconductor pixel detectors for vertex detection in high energy physics experiments together with the steady progress in CMOS technology opened the way for the development of single photon processing pixel detectors ...
Campbell, M   +8 more
core   +1 more source

Development of a high-performance readout circuit for photoelectric detectors

open access: yesAIP Advances, 2020
A high-performance readout circuit for photoelectric detectors is developed in this paper to achieve high-speed low-noise image detection. Here, the W/L ratio of the first-stage P-type following transistor is reduced to decrease the parasitic capacitance
Honghui Yuan, Yongping Chen
doaj   +1 more source

Emerging SiC Applications beyond Power Electronic Devices

open access: yesMicromachines, 2023
In recent years, several new applications of SiC (both 4H and 3C polytypes) have been proposed in different papers. In this review, several of these emerging applications have been reported to show the development status, the main problems to be solved ...
Francesco La Via   +8 more
doaj   +1 more source

Metadevices with Potential Practical Applications

open access: yesMolecules, 2019
Metamaterials are “new materials” with different superior physical properties, which have generated great interest and become popular in scientific research.
Yafei Li   +7 more
doaj   +1 more source

Neural-Network-Based Equalization and Detection for Underwater Acoustic Orthogonal Frequency Division Multiplexing Communications: A Low-Complexity Approach

open access: yesRemote Sensing, 2023
The performance of the underwater acoustic (UWA) orthogonal frequency division multiplexing (OFDM) system is often restrained by time-varying channels with large delays.
Mingzhang Zhou   +5 more
doaj   +1 more source

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