Results 31 to 40 of about 137,144 (305)

Inverse modeling of European CH4 emissions: sensitivity to the observational network

, 2009
Inverse modeling is widely employed to provide “top-down” emission estimates using atmospheric measurements. Here, we analyze the dependence of derived CH4 emissions on the sampling frequency and density of the observational surface network, using the ...
Bergamaschi, P., Villani, M.G., Sub Atmospheric physics and chemistry, Krol, M., Krol, M.C., Dep Natuurkunde, Dentener, F., Villani, M. G., Marine and Atmospheric Research, Meirink, J.F.   +9 more
core   +1 more source

BPSK subcarrier intensity modulated free-space optical communications in atmospheric turbulence

, 2009
Free-space optical communications (FSO) propagated over a clear atmosphere suffers from irradiance fluctuation caused by small but random atmospheric temperature fluctuations.
Ghassemlooy, Zabih, Popoola, Wasiu Oyewole, Popoola, Wasiu O., Ghassemlooy , Zabih   +3 more
core   +1 more source

Global atmospheric effects on the gravity field quantities

Contributions to Geophysics and Geodesy, 2009
We compile  the global  maps  of atmospheric effects  on the gravity field quantities  using the spherical harmonic representation of the gravitational field.   A simple atmospheric density distribution is assumed within  a lower  atmosphere (< 6 km).   Dis-
Robert TENZER, Peter VAJDA, K HAMAYUN
doaj   +1 more source

Antarctic sea ice control on ocean circulation in present and glacial climates [PDF]

, 2013
All authors acknowledge support from the National Science Foundation. R.F. acknowledges support from the Breene M. Kerr Chair.In the modern climate, the ocean below 2 km is mainly filled by waters sinking into the abyss around Antarctica and in the North
Burke, Andrea, Ferrari, Raffaele, Adkins, Jess F., Jansen, Malte F., Thompson, Andrew F., Stewart, Andrew L., Jansen, Malte Friedrich, Burke, Andrea, Ph. D. Massachusetts Institute of Technology   +7 more
core   +1 more source

Winged Seed Aerodynamics and Atmospheric Density: Preliminary Results

International Scholastic Journal of Science, 2023
The relationship between atmospheric density and the aerodynamic behavior of two types of winged seeds, Hopea odorata and Dipterocarpus alatus, have been examined.
Siriyada Bundhuratana, Mattaya Hunsreesagul, Atsada Israpanich, Nitchawee Piromchotesiri, Kwanjira Thamakaison   +4 more
doaj  

Understanding and Modeling the Dynamics of Storm‐Time Atmospheric Neutral Density Using Random Forests

Space Weather
Atmospheric neutral density is a crucial component to accurately predict and track the motion of satellites. During periods of elevated solar and geomagnetic activity atmospheric neutral density becomes highly variable and dynamic.
K. Murphy, A. J. Halford, V. Liu, J. Klenzing, J. Smith, K. Garcia‐Sage, J. Pettit, I. J. Rae   +7 more
doaj   +1 more source

An unexpected alternative viologen electron mediator site in tungsten‐containing formate dehydrogenase

FEBS Letters, EarlyView.
An unexpected alternative interaction site for ethyl viologen was identified in formate dehydrogenase 1 from Methylorubrum extorquens. Combined mutagenesis, kinetic analysis, and docking revealed that aromatic residues near an iron–sulfur cluster enable flavin mononucleotide‐independent electron transfer, offering a framework for engineering improved ...
Eleni G. Poloniataki, Yong Hwan Kim
wiley   +1 more source

The Density and Depth of the Solar Atmosphere [PDF]

Nature, 1871
THE demonstration relating to the density and depth of the solar atmosphere, published in NATURE October 5, 1871, page 449, has been entirely misconceived by Mr. Ball. The volume of the terrestrial atmosphere is an element which obviously has nothing to do with the question.
openaire   +2 more sources

Evaluation of Empirical Atmospheric Models Using Swarm-C Satellite Data

Atmosphere, 2022
Swarm-C satellite, a new instrument for atmospheric study, has been the focus of many studies to evaluate its usage and accuracy. This paper takes the Swarm-C satellite as a research object to verify the Swarm-C accelerometer’s inversion results.
Lirong Yin, Lei Wang, Wenfeng Zheng, Lijun Ge, Jiawei Tian, Yan Liu, Bo Yang, Shan Liu   +7 more
doaj   +1 more source

ABL kinase‐dependent phosphorylation of SH proteins promotes their direct interaction with CRK family SH2 domains

FEBS Letters, EarlyView.
CT10 regulator of kinase (CRK) and CRK‐Like (CRKL) are signaling adaptors driving cell adhesion, motility, differentiation, and proliferation. SH2‐domain containing (SH) proteins are enriched in YXXP motifs which when phosphorylated create preferred binding sites for CRK family SH2 domains.
Phoebe M. Cousens, Brendan W. Chandler, Anna M. Schmoker, Jaye L. Weinert, Charlotte A. Kearns, Warren T. Yacawych, Amila Šemić, Alicia M. Ebert, Bryan A. Ballif   +8 more
wiley   +1 more source