Results 81 to 90 of about 608,712 (186)

Bidirectional to unidirectional emission of fluorescence controlled by optical traveling wave antennas

Nanophotonics, 2019
Tailoring the fluorescence emission of quantum emitters to a desired direction is a crucial issue to achieve high efficient photodetection and realize unique optoelectronic devices.
Wang Yilin, Li Shilei, Yan Jie-Yun, Li Chao, Jiang Ping, Wang Lulu, Yu Li   +6 more
doaj   +1 more source

Optical and Infrared Imaging and Spectroscopy of the Multiple-Shell Planetary Nebula NGC 6369

, 2011
NGC 6369 is a double-shell planetary nebula (PN) consisting of a bright annular inner shell with faint bipolar extensions and a filamentary envelope. We have used ground- and space-based narrow-band optical and near-IR images, broad-band mid-IR images ...
Acosta Pulido, Aller, Bernard Salas, Cohen, Contreras, Corradi, Corradi, Corradi, de Graauw, Dopita, Fazio, G. Ramos-Larios, Guerrero, Guerrero, Guerrero, Hajian, Hony, Houck, Hrivnak, J. P. Phillips, Kwok, Li, M. A. Guerrero, Manchado, Meaburn, Meaburn, Monteiro, O’Dell, Palmer, Phillips, Phillips, Phillips, Pittard, Pottasch, Quino-Mendoza, R. Vázquez, Ramos-Larios, Redman, Sabbadin, Sahai, Schneider, Schwarz, Shull, Solf, Steffen, Steffen, Van Winckel, Zhang, Zuckerman   +48 more
core   +1 more source

Diffuse Supernova Neutrino Background from extensive core-collapse simulations of $8$-$100 {\rm M}_\odot$ progenitors

, 2017
We revisit the diffuse supernova neutrino background in light of recent systematic studies of stellar core collapse that reveal the quantitative impacts of the progenitor conditions on the collapse process. In general, the dependence of the progenitor on
Fischer, Tobias, Horiuchi, Shunsaku, Janka, Hans-Thomas, Kotake, Kei, Nakamura, Ko, Sumiyoshi, Kohsuke, Summa, Alexander, Takiwaki, Tomoya   +7 more
core   +1 more source

Modifications and Statistical Analysis of Acoustic Emission Models Based on the Damage and Fractal Characteristics

Advances in Materials Science and Engineering, 2018
The damage process is accompanied by the acoustic emission for quasibrittle materials. And in the process of material damage evolution, the length of microcracks satisfies the fractal distribution.
Jie Yang, Yanna Zheng, Huijing Wang
doaj   +1 more source

RELATIONS OF STRUCTURE COMPONENTS OF GIANT RADIO SOURCES

Odessa Astronomical Publications, 2016
Our previous estimates of physical parameters of galaxies and quasars with steep radio spectrum have showed their great radio luminosity and giant radio structure.
A. P. Miroshnichenko
doaj   +1 more source

The broadband emission properties of AGN jets

, 2011
The origin of the high-energy emission of blazars is still a matter of debate. To investigate the emission mechanism of extragalactic outflows and to pin down the location of the emission, we have constructed a broadband spectral energy distribution (SED)
Aller, H. D., Aller, M. F., Angelakis, E., Boeck, M., Chang, C. S., Fuhrmann, L., Kadler, M., Nestoras, I., Ros, E., Wilms, J.   +9 more
core   +1 more source

Governance, urbanization, and pollution: A cross-country analysis of global south region

Cogent Economics & Finance, 2020
This paper investigates the impact urbanization, industrialization, corruption, human development, energy consumption, and foreign direct investment (FDI) on carbon dioxide (CO2) emissions of 61 developing economies of the global south region of Asia ...
Devi Prasad Dash, Smruti Ranjan Behera, D. Tripati Rao, Narayan Sethi, Nanthakumar Loganathan   +4 more
doaj   +1 more source

Statistical Analysis of Polycyclic Aromatic Hydrocarbons as a Tracer of Anomalous Microwave Emission Using DIRBE Data

The Astrophysical Journal
We use archival data from the Diffuse Infrared Background Experiment (DIRBE) to map the polycyclic aromatic hydrocarbon (PAH) 3.3 μ m emission feature and analyze its correlation with anomalous microwave emission (AME) in 98 compact sources identified by
Danielle Sponseller, David T. Chuss, Brandon Hensley, Alan Kogut   +3 more
doaj   +1 more source

High-spatial-resolution observations of NH3 and CH3OH towards the massive twin cores NGC6334 I & I(N)

, 2005
Molecular line observations of NH3 (J,K)=(1,1), (2,2) and CH3OH at 24.93GHz taken with the Australian Telescope Compact Array (ATCA) toward the massive twin cores NGC6334 I & I(N) reveal significant variations in the line emission between the two massive
A. J. Walsh, Bachiller R., Danby G., Davis C. J., Ellingsen S. P., Forster J. R., H. Beuther, K. M. Menten, Neckel T., Persi P., Persi P., Q. Zhang, S. T. Megeath, S. Thorwirth, Sandell G., Sobolev A. M., T. R. Hunter, Tapia M., Ungerechts H., Walmsley C. M.   +19 more
core   +1 more source

Multiple Jets in the Bursting Protostar HOPS 373SW

The Astrophysical Journal
We present the outflows detected in HOPS 373SW, a protostar undergoing a modest 30% brightness increase at 850 μ m. Atacama Large Millimeter/submillimeter Array observations of shock tracers, including SiO 8–7, CH _3 OH 7 _k –6 _k , and ^12 CO 3–2 ...
Seokho Lee, Jeong-Eun Lee, Doug Johnstone, Gregory J. Herczeg, Yuri Aikawa   +4 more
doaj   +1 more source