Results 21 to 30 of about 3,767,493 (339)
Quantitative analysis of directional spontaneous emission spectra from light sources in photonic crystals [PDF]
, 2005 We have performed angle-resolved measurements of spontaneous-emission spectra from laser dyes and quantum dots in opal and inverse opal photonic crystals.
H. P. Schriemer +4 more
core +4 more sources
Atmosphere, 2022 Both the EU and China are evaluating the feasibility of lowering the detection limit of particle number (PN) measurement to 10 nm in future legislations, making it necessary to better understand the sub-23 nm particle emission characteristics from state ...
Dongdong Guo +6 more
doaj +1 more source
The radio-infrared correlation in galaxies [PDF]
, 2009 The radio-infrared correlation was explained as a direct and linear relationship between star formation and IR emission. However, one fact making the IR-star formation linkage less obvious is that the IR emission consists of at least two emission ...
E. Berkhuijsen +6 more
core +1 more source
Atmosphere, 2020 Previous works on real-world vehicle emission characteristics have mainly focused on the influences of fuel, speed, vehicle type, elevation, and other factors on vehicle emission quantity and components.
Chao Ma +9 more
doaj +1 more source
Atmosphere, 2023 To further improve air quality in China, especially ozone and fine particulate matter (PM2.5), additional reductions of volatile organic compounds (VOCs) are needed.
Di Peng +8 more
doaj +1 more source
, 2022 Environmental regulations and their enforcement play a critical role in reducing emissions and their devastating effects on humanity and the environment. However, many developing countries have large informal sectors—accounting for more than 70 percent of total employment, that operate outside
Burgi, Constantin +3 more
openaire +2 more sources
Brake wear-derived particles: Single-particle mass spectral signatures and real-world emissions
Environmental Science and Ecotechnology, 2023 Brake wear is an important but unregulated vehicle-related source of atmospheric particulate matter (PM). The single-particle spectral fingerprints of brake wear particles (BWPs) provide essential information for understanding their formation mechanism ...
Jiayuan Liu +9 more
doaj +1 more source
Foreground Analysis Using Cross-Correlations of External Templates on the 7-year WMAP data [PDF]
, 2011 WMAP data when combined with ancillary data on free-free, synchrotron and dust allow an improved understanding of the spectrum of emission from each of these components.
A. J. Banday +70 more
core +2 more sources
Robust Chaos Generation on the Basis of Symmetry Violations in Attractors
, 2014 We present a method for generating robust chaos. It is based on the search algorithm weak symmetry violation in the reconstructed attractor. On its basis the smooth functions in the form of a system of finite-difference equations.
Nikulchev, Evgeny
core +1 more source
No Transition Disk? Infrared Excess, PAH, H-2, And X-Rays From The Weak-Lined T Tauri Star DoAr 21 [PDF]
, 2009 As part of a program to understand disk dispersal and the interplay between circumstellar disks and X-ray emission, we present new high-resolution mid-infrared (IR) imaging, high-resolution optical spectroscopy, and Chandra grating X-ray spectroscopy of ...
Cohen, David H. +2 more
core +4 more sources