18 papers · ranked by Valyu relevance
Lily Whitler, Daniel P. Stark, Michael W. Topping, Brant Robertson + 23 more
Deep Extragalactic Survey: insights into early galaxy evolution and reionization Authors: ['Lily Whitler' 'Daniel P. Stark' 'Michael W. Topping' 'Brant Robertson' 'Marcia Rieke' 'Kevin Hainline' 'Ryan Endsley' 'Zuyi Chen' 'William Baker' 'Rachana Bhatawdekar' 'Andrew J. Bunker' 'Stefano Carniani' 'S. Charlot' 'Jacopo…
Souradeep Bhattacharya, Kanak Saha
We characterise the rest-frame 1500 Å UV luminosity Function (UVLF) from deep AstroSat/UVIT F154W and N242W imaging in the Great Observatories Origins Survey South (GOODS-S) deep field. The UVLFs are constructed and subsequently characterised with fitted Schechter function parameters from FUV observations at z< 0.13…
Sérgio M. Santos, David Sobral, Joshua Butterworth, Ana Paulino-Afonso + 6 more
'Ana Paulino-Afonso' 'B. Ribeiro' 'Elisabete da Cunha' 'João Calhau' 'Ali Ahmad Khostovan' 'Jorryt Matthee' 'Pablo Arrabal Haro'] We measure the evolution of the rest-frame UV luminosity function (LF) and the stellar mass function (SMF) of Lyman-α (Lyα) emitters (LAEs) from z ∼ 2 to z ∼ 6 by exploring ∼ 4000 LAEs from…
Chuanwu Liu, Simon J. Mutch, Paul W. Angel, Alan R. Duffy + 4 more
'Paul M. Geil' 'Gregory B. Poole' 'Andrei Mesinger' 'J. Stuart B. Wyithe'] In this paper we present calculations of the UV luminosity function from the Dark-ages Reionization And Galaxy-formation Observables from Numerical Simulations (DRAG-ONS) project, which combines N-body, semi-analytic and semi-numerical modelling…
Debabrata Adak, Dhiraj Kumar Hazra, Sourav Mitra, Aditi Krishak
Reionization Epoch Authors: ['Debabrata Adak' 'Dhiraj Kumar Hazra' 'Sourav Mitra' 'Aditi Krishak'] - bDepartamento de Astrof´ısica, Universidad de La Laguna, E-38206 La Laguna, Tenerife, Spain - cThe Institute of Mathematical Sciences, CIT Campus, Chennai 600113, India - dHomi Bhabha National Institute, Training School…
Dae-Hwan Park, Seung-Taek Oh, Jae-Hyun Lim
Ultraviolet (UV) rays are electromagnetic waves that account for about 5% of solar light, and when overexposed, they pose malevolent effects on human skin and health. However, with recent reports on the beneficial effects of some wavelength bands of UV rays, people’s interest in UV information has increased. This has…
Manuel Spitschan, James Mead, Chris Roos, Chris Lowis + 5 more
Light exposure has a profound impact on human physiology and behaviour. For example, light exposure at the wrong time can disrupt our circadian rhythms and acutely suppress the production of melatonin. In turn, appropriately timed light exposure can support circadian photoentrainment. Beginning with the discovery that…
Pablo Fredes, Ulrich Raff, Ernesto Gramsch, Marcelo Tarkowski
Disinfection of surfaces by ultraviolet-C (UV-C) radiation is gaining importance in diverse applications. However, there is generally no accepted computational procedure to determine the minimum irradiation times and UV-C doses required for reliable and secure disinfection of surfaces. UV-C dose distributions must be…
Peter D. Kaplan, Emmanuel L. P. Dumont, Ki H. Chon
Ultraviolet (UV) exposure significantly contributes to non-melanoma skin cancer. In the context of health, UV exposure is the product of time and the UV Index (UVI), a weighted sum of the irradiance I(λ) over all wavelengths from λ = 250 to 400 nm. In our analysis of the United States Environmental Protection Agency’s…
Pratibha Sharma, Pao Chen, Saya Han, Peter Chung + 3 more
Ultraviolet-C Light-Emitting Diodes Authors: ['Pratibha Sharma' 'Pao Chen' 'Saya Han' 'Peter Chung' 'Jungpin Chen' 'Justin Tseng' 'Chang Han'] Ultraviolet-C (UV-C) radiation, spanning wavelengths between 200 nm and 280 nm, has proven germicidal qualities and medical, industrial, and environmental applications. The need…
Tamás Dóka, Péter Horák
Distribution Modeling of an Ultraviolet Light Disinfection Process for Pathogen Inactivation Efficiency Evaluation Authors: ['Tamás Dóka' 'Péter Horák'] This study addresses the need to utilize bench-scale experimental results for ultraviolet (UV) light disinfection on solid food surfaces by proposing a novel framework…
Thomas C. Larason, Christopher L. Cromer
Increasing commercial, scientific, and technical applications involving ultraviolet (UV) radiation have led to the demand for improved understanding of the performance of instrumentation used to measure this radiation. There has been an effort by manufacturers of UV measuring devices (meters) to produce simple…
Michael A. Duncan, David Welch, Igor Shuryak, David J. Brenner
Far-UVC radiation, commonly defined as wavelengths from 200 nm – 235 nm, is a promising tool to help prevent the spread of disease. The unique advantage of far-UVC technology over traditional ultraviolet germicidal irradiation lies in the potential for direct application of far-UVC into occupied spaces since…
Killian Duay, Takehiro Nagai
Luminosity thresholds define the luminance boundary at which a surface color shifts in appearance from being perceived as an illuminated surface to appearing self-luminous. Previous research suggests that the human visual system infers these thresholds based on internal references of physically realizable surface…
Takuma Morimoto, Ai Numata, Kazuho Fukuda, Keiji Uchikawa
Some objects in the real world themselves emit a light, and we typically have a fairly good idea as to whether a given object is self-luminous or illuminated by a light source. However, it is not well understood how our visual system makes this judgement. This study aimed to identify determinants of luminosity…
Eric Almeida Xavier
The use of ultraviolet (UV) sources in laboratories requires safety practices. For example, when the ultraviolet light of laminar flow is on, it is important that the researcher or team members do not remain in the environment. There are laminar flows that have glasses with an ultraviolet light filter, but many models…
Giulia Giubertoni, Marina Gomes Rachid, Carolyn Moll, Michiel Hilbers + 2 more
Based on concepts from nuclear magnetic resonance, we have developed UV/Vis Diffusion-Ordered Spectroscopy, which simultaneously probes the size and the electronic spectrum of molecules and particles. We use simple flow technology to create a step-function concentration profile inside an optical sample cell, and by…
Authors not listed
This study presents a theoretical modeling framework for photocatalytic CO₂ reduction in a cylindrical packed-bed photoreactor, integrating optical simulation, surface activation dy-namics, and kinetic analysis. A ray-based Beer–Lambert model was employed to simulate photon attenuation, revealing a strong vertical…