Results 51 to 60 of about 166,554 (139)

Prospects of dynamical determination of General Relativity parameter beta and solar quadrupole moment J2 with asteroid radar astronomy

, 2017
We evaluated the prospects of quantifying the parameterized post-Newtonian parameter beta and solar quadrupole moment J2 with observations of near-Earth asteroids with large orbital precession rates (9 to 27 arcsec century$^{-1}$). We considered existing
Greenberg, Adam H., Margot, Jean-Luc, Verma, Ashok K.   +2 more
core   +1 more source

Impacts of Atmospheric Carbon Species and Stellar Type on Climates of Terrestrial Planets

The Planetary Science Journal
The climates of terrestrial planets are largely determined by the composition of their atmospheres and the spectral types of their host stars. Previous studies suggest that a wide range of carbon species abundances (CO _2 , CO, and CH _4 ) can result ...
Jared Landry, Hiroyuki Kurokawa, Tetsuo Taki, Yuka Fujii, Kosuke Aoki, Hidenori Genda   +5 more
doaj   +1 more source

Constraining Southern Ocean Air-Sea-Ice Fluxes Through Enhanced Observations

Frontiers in Marine Science, 2019
Air-sea and air-sea-ice fluxes in the Southern Ocean play a critical role in global climate through their impact on the overturning circulation and oceanic heat and carbon uptake.
Sebastiaan Swart, Sebastiaan Swart, Sarah T. Gille, Bruno Delille, Simon Josey, Matthew Mazloff, Louise Newman, Andrew F. Thompson, Jim Thomson, Brian Ward, Marcel D. du Plessis, Marcel D. du Plessis, Elizabeth C. Kent, James Girton, Luke Gregor, Luke Gregor, Petra Heil, Patrick Hyder, Luciano Ponzi Pezzi, Ronald Buss de Souza, Veronica Tamsitt, Veronica Tamsitt, Robert A. Weller, Christopher J. Zappa   +23 more
doaj   +1 more source

Automated Additive Construction (AAC) for Earth and Space Using In-situ Resources [PDF]

, 2016
Using Automated Additive Construction (AAC), low-fidelity large-scale compressive structures can be produced out of a wide variety of materials found in the environment.
Ali, Hisham, Andersen, Christian, Burgoyne, Hayden, Chambers, Wesley, Clinton, Raymond, De Kestellier, Xavier, Ebelt, Keye, Gerner, Shai, Hofmann, Douglas, Hogstrom, Kristina, Howe, Scott, Ilves, Erika, Jerves, Alex, Keenan, Ryan, Keravala, Jim, Khoshnevis, Behrokh, Kochmann, Dennis, Lim, Sungwoo, Metzger, Philip, Meza, Lucas, Mueller, Robert P., Nakamura, Takashi, Nelson, Andrew, Partridge, Harry, Pettit, Donald, Pyle, Rod, Reiners, Eric, Shapiro, Andrew, Singer, Russell, Tan, Wei-Lin, Vazquez, Noel, Wilcox, Brian, Zelhofer, Alex   +32 more
core  

Analysis of Rainfall and Discharge Trend in Kashafrood Watershed Dr. Mehdi Vafakhah Assistant Professor of Watershed Management University of Tarbiat Modares Mohammad Bakhshi Tiragani M.Sc Student of Watershed Mangement University of Tarbiat Modares Majid Khazaei M.Sc Student of Watershed Mangement University of Tarbiat Modares [PDF]

جغرافیا و توسعه, 2012
Introduction The human activates and change of the land use has made changes in the peak and base flow discharge of the rivers. Also increasing the global average temperature has made anomalies in meteorological and hydrological variables such as ...
doaj   +1 more source

Particle Sedimentation in a Fluid at Low Reynolds Number: A Generalization of Hindered Settling Described by a Two‐Phase Continuum Model

Geochemistry, Geophysics, Geosystems
Particle‐fluid separation by settling is a ubiquitous process in Earth and Planetary Sciences. The settling velocity of particles is controlled by a balance between buoyancy and drag forces.
C. Huber, E. M. Parmentier, D. Florez
doaj   +1 more source

Historical overview, advancements, and future prospects of coalfield structure research in China

Meitian dizhi yu kantan
BackgroundCoalfield structures represent a basic aspect of coalfield geology. In China, research into this domain has a history of over a century, yielding numerous results after undergoing exploration, learning, and innovation. These results have played
Daiyong CAO, Yiwen JU, Yucheng XIA, Bo JIANG, Shuzheng NING, Yingchun WEI, Anmin WANG, Xiaoming LI, Wenfeng ZHAN, Huantong LI, Lu WANG, Zhuocheng CAI   +11 more
doaj   +1 more source

First electrostatic probe results from Explorer 17 [PDF]

, 1965
Electrostatic probe results from ionospheric sounding by Explorer XVII ...
Brace, L. H., Spencer, N. W.
core   +1 more source

Life-Detection Technologies for the Next Two Decades

, 2018
Since its inception six decades ago, astrobiology has diversified immensely to encompass several scientific questions including the origin and evolution of Terran life, the organic chemical composition of extraterrestrial objects, and the concept of ...
Bodas, Dhananjay, Carr, Christopher, Chen, Huan, Cleaves II, H. James, Fujii, Yuka, Furukawa, Yoshihiro, Genda, Hidenori, Gillams, Richard J., Giri, Chaitanya, Hamano, Keiko, Jia, Tony Z., Kameda, Shingo, Krishnamurthy, Ramanarayanan, Meinert, Cornelia, Meringer, Markus, Paknikar, Kishore, Rajamani, Sudha, Shivaji, Sisinthy, Steele, Andrew, Taniguchi, Masateru, Usui, Tomohiro, Yabuta, Hikaru, Yamagishi, Akihiko   +22 more
core  

Modern anthropogenic drought in Central Brazil unprecedented during last 700 years

Nature Communications
A better understanding of the relative roles of internal climate variability and external contributions, from both natural (solar, volcanic) and anthropogenic greenhouse gas forcing, is important to better project future hydrologic changes.
Nicolas Misailidis Stríkis, Plácido Fabrício Silva Melo Buarque, Francisco William Cruz, Juan Pablo Bernal, Mathias Vuille, Ernesto Tejedor, Matheus Simões Santos, Marília Harumi Shimizu, Angela Ampuero, Wenjing Du, Gilvan Sampaio, Hamilton dos Reis Sales, José Leandro Campos, Mary Toshie Kayano, James Apaèstegui, Roger R. Fu, Hai Cheng, R. Lawrence Edwards, Victor Chavez Mayta, Danielle da Silva Francischini, Marco Aurélio Zezzi Arruda, Valdir Felipe Novello   +21 more
doaj   +1 more source