Results 21 to 30 of about 614,419 (300)

The Linkage Among Sea Transport, Trade Liberalization and Industrial Development in the Context of CO2: An Empirical Investigation From China

Frontiers in Environmental Science, 2021
The major goal of this paper is to focus on the linkage between sea transportation, trade liberalization and industrial development in the context of carbon dioxide emission.
Salih Kalaycı, Cihan Özden
doaj   +1 more source

Neutron Star Mergers and the Quark Matter Equation of State [PDF]

EPJ Web of Conferences, 2022
As neutron stars merge they can approach very high nuclear density. Here, we summarized recent results for the evolution and gravitational wave emission from binary-neutron star mergers using a a variety of nuclear equations of state with and without a ...
Mathews Grant J., Kedia Atul, Kim Hee Il, Suh In-Saeng   +3 more
doaj   +1 more source

Exploring manifestation and nature of a dineutron in two-neutron emission using a dynamical dineutron model [PDF]

, 2018
Emission of two neutrons or two protons in reactions and decays is often discussed in terms of "dineutron" or "diproton" emission. The discussion often leans intuitively on something described by Migdal-Watson approximation. In this work we propose a way
Grigorenko, L. V., Vaagen, J. S., Zhukov, M. V.   +2 more
core   +2 more sources

Recent methane surges reveal heightened emissions from tropical inundated areas [PDF]

Nature Communications, 2023
Record breaking atmospheric methane growth rates were observed in 2020 and 2021 (15.2±0.5 and 17.8±0.5 parts per billion per year), the highest since the early 1980s. Here we use an ensemble of atmospheric inversions informed by surface or satellite methane observations to infer emission changes during these two years relative to 2019.
Xin Lin, Shushi Peng, Philippe Ciais, Didier Hauglustaine, Xin Lan, Gang Liu, Michel Ramonet, Yi Xi, Yi Yin, Zhen Zhang, Hartmut Bösch, Philippe Bousquet, Frédéric Chevallier, Bogang Dong, Cynthia Gerlein-Safdi, Santanu Halder, Robert J. Parker, Benjamin Poulter, Tianjiao Pu, Marine Remaud, Alexandra Runge, Marielle Saunois, Rona L. Thompson, Yukio Yoshida, Bo Zheng   +24 more
openaire   +6 more sources

Distant Emission from Mrk 1239: Origin Revealed

, 2022
New X-ray observations of a hybrid Narrow Line Seyfert 1 (NLS1) galaxy Mrk 1239 with joint NuSTAR and XMM-Newton in the 0.3-40.0 keV band are presented. Below 2 keV, direct AGN emission is obscured revealing a complex RGS spectrum rich in emission lines originating from a two-component plasma (collisionally and photoionized) at large distances from the
Buhariwalla, M.Z., Gallo, L.C., Mao, J.
openaire   +1 more source

Line Ratios Reveal N2H+ Emission Originates Above the Midplane in TW Hydrae [PDF]

, 2019
Line ratios for different transitions of the same molecule have long been used as a probe of gas temperature. Here we use ALMA observations of the N2H+ J~=~1-0 and J~=~4-3 lines in the protoplanetary disk around TW Hya to derive the temperature at which ...
Bergin, Edwin A., Schwarz, Kamber R., Teague, Richard   +2 more
core   +2 more sources

Spontaneous Otoacoustic Emissions Reveal an Efficient Auditory Efferent Network [PDF]

Journal of Speech, Language, and Hearing Research, 2018
Purpose Understanding speech often involves processing input from multiple modalities. The availability of visual information may make auditory input less critical for comprehension. This study examines whether the auditory system is sensitive to the presence of complementary sources of input when exerting top-down control over
Viorica, Marian, Tuan Q, Lam, Sayuri, Hayakawa, Sumitrajit, Dhar   +3 more
openaire   +2 more sources

Penetrating the Deep Cover of Compton Thick Active Galactic Nuclei [PDF]

, 2006
We analyze observations obtained with the Chandra X-ray Observatory of bright Compton thick active galactic nuclei (AGNs), those with column densities in excess of 1.5 x 10^{24} cm^{-2} along the lines of sight.
Antonucci R., Awaki H., Bergvall N., Comastri A., de Grijp M. H. K., Diaz A. I., Ghisellini G., Gonzalez Delgado R. M., J. H. Krolik, K. A. Weaver, Koyama K., Magdziarz P., Maiolino R., Mewe R., Mewe R., N. A. Levenson, Nandra K., P. T. Życki, Risaliti G., Setti G., T. M. Heckman   +20 more
core   +3 more sources

Multiexciton Lifetimes Reveal Triexciton Emission Pathway in CdSe Nanocrystals [PDF]

Nano Letters, 2018
Multiexcitons in emerging semiconducting nanomaterials play a critical role in potential optoelectronic and quantum computational devices. We describe photon resolved single molecule methods to directly probe the dynamics of biexcitons and triexcitons in colloidal CdSe quantum dots.
Katherine E. Shulenberger, Thomas S. Bischof, Justin R. Caram, Hendrik Utzat, Igor Coropceanu, Lea Nienhaus, Moungi G. Bawendi   +6 more
openaire   +4 more sources

First optical light from the supernova remnant G 17.4-2.3 [PDF]

, 2002
Deep optical CCD images of the supernova remnant G 17.4-2.3 were obtained and faint emission has been discovered. The images, taken in the emission lines of Halpha+[N II], [S II] and [O III], reveal filamentary structures in the east, south-east area ...
Case, Cioffi, Condon, Condon, Cox, Dickey, Dopita, Fesen, Fesen, Fesen, Green, Hamuy, Hamuy, Hester, Hilton, Kaler, Lynds, Mavromatakis, Mavromatakis, McKee, Paredes, Raymond, Reich, Ryter, Seward, Shull, Smith   +26 more
core   +2 more sources