Results 41 to 50 of about 515,216 (272)

AI-Based Large-Area Nuclear Particle Track Analysis System

open access: yesNuclear Engineering and Technology
A Region-based Convolutional Neural Network (R-CNN) model was developed for automated analysis of alpha particle tracks. Columbia Resin 39 (CR-39) nuclear detectors were exposed to a 1-μCi Americium-241 (241Am) alpha particle source and subsequently ...
Noah D'Amico   +6 more
doaj   +1 more source

Oslo’s “new Track”: Norwegian Nuclear Disarmament Diplomacy, 2005–2013

open access: yesJournal for Peace and Nuclear Disarmament, 2019
Adopted by 122 non-nuclear-weapon states in July 2017, the Treaty on the Prohibition of Nuclear Weapons (TPNW) was promoted by a transnational network of government agencies, international organizations, and civil society actors.
Kjølv Egeland
doaj   +1 more source

Ion tracks in silicon formed by much lower energy deposition than the track formation threshold

open access: yesScientific Reports, 2021
Damaged regions of cylindrical shapes called ion tracks, typically in nano-meters wide and tens micro-meters long, are formed along the ion trajectories in many insulators, when high energy ions in the electronic stopping regime are injected.
H. Amekura   +10 more
doaj   +1 more source

Studies of Vertex Tracking with SOI Pixel Sensors for Future Lepton Colliders

open access: yes, 2012
This paper presents a study of vertex tracking with a beam hodoscope consisting of three layers of monolithic pixel sensors in SOI technology on high-resistivity substrate.
Aad   +35 more
core   +1 more source

Nuclear Track Detectors for Environmental Studies and Radiation Monitoring [PDF]

open access: yes, 2006
Several improvements were made for Nuclear Track Detectors (NTDs) used for environmental studies and for particle searches. A new method was used to determine the bulk etch rate of CR39 and Makrofol NTDs.
A. Kumar   +29 more
core   +2 more sources

Interplay between circadian and other transcription factors—Implications for cycling transcriptome reprogramming

open access: yesFEBS Letters, EarlyView.
This perspective highlights emerging insights into how the circadian transcription factor CLOCK:BMAL1 regulates chromatin architecture, cooperates with other transcription factors, and coordinates enhancer dynamics. We propose an updated framework for how circadian transcription factors operate within dynamic and multifactorial chromatin landscapes ...
Xinyu Y. Nie, Jerome S. Menet
wiley   +1 more source

Search for nuclearites with the SLIM detector

open access: yes, 2005
We discuss the properties of cosmic ray nuclearites, from the point of view of their search with large nuclear track detector arrays exposed at different altitudes, in particular with the SLIM experiment at the Chacaltaya high altitude lab (5290 m a.s.l.)
A. Rújula De   +22 more
core   +1 more source

Real‐time assay of ribonucleotide reductase activity with a fluorescent RNA aptamer

open access: yesFEBS Letters, EarlyView.
Ribonucleotide reductases (RNR) synthesize DNA building blocks de novo, making them crucial in DNA replication and drug targeting. FLARE introduces the first single‐tube real‐time coupled RNR assay, which enables isothermal tracking of RNR activity at nanomolar enzyme levels and allows the reconstruction of allosteric regulatory patterns and rapid ...
Jacopo De Capitani   +4 more
wiley   +1 more source

3-D imaging of particle tracks in solid state nuclear track detectors [PDF]

open access: yesNatural Hazards and Earth System Sciences, 2010
It has been suggested that 3 to 5% of total lung cancer deaths in the UK may be associated with elevated radon concentration. Radon gas levels can be assessed using CR-39 plastic detectors which are often assessed by 2-D image analysis of surface images.
D. Wertheim   +3 more
doaj   +1 more source

Nuclear particle detection using a track-recording solid [PDF]

open access: yes, 1984
The design of the nuclear particle detector located in Purdue University's Get Away Special package which was flown aboard STS-7 is detailed. The experiment consisted of a stack of particle-detecting polymer sheets.
Weber, D., Weber, M.
core   +1 more source

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