Results 31 to 40 of about 2,693 (194)

Hydrogeochemical tracers to assess the groundwater in El Saieda Basin, western desert, Aswan, Egypt

Applied Water Science
Egypt is a country that heavily relies on agricultural activities. River Nile serves as the primary source of irrigation water for agricultural purposes.
Saad A. Mohallel
doaj   +1 more source

Erzbildende Prozesse in hydrothermalen Ganglagerstätten, Schwarzwald, SW-Deutschland [PDF]

, 2016
Hydrothermale Fluide sind die Träger verschiedenster Metalle. Manche dieser Metalle werden in hydrothermalen Gangvererzungen angereichert. Millionen Jahre altes, flüssiges, hydrothermales Fluid wurde bei der Gangbildung in kleinen Einschlüssen in ...
Walter, Benjamin
core   +1 more source

Variable Temperature Studies of Two Calcium Uranates α‐Ca3UO6 and Ca2UO5

Chemistry – A European Journal, EarlyView.
The structures and thermal responses of the calcium uranates α‐Ca3UO6 and Ca2UO5 were investigated using in situ synchrotron x‐ray diffraction and neutron powder diffraction. Despite the very similar chemical compositions, the structural response of the two calcium uranates is shown to be complex and varied.
Maria K. Nicholas, Timothy A. Ablott, Caleb J. Bennett, Bryce G. Mullens, Helen E. Maynard‐Casely, Wen Liang Tan, Jeremy L. Wykes, Yingjie Zhang, Brendan J. Kennedy   +8 more
wiley   +1 more source

1910 Catalogue of Marshall College, The State Normal School [PDF]

, 1910
Catalogue of Marshall College, The State Normal School, Huntington, W.Va for the 1910 academic year.https://mds.marshall.edu/catalog_1910-1919/1000/thumbnail ...
Marshall University
core   +1 more source

In‐situ asphaltene capture with iron oxide nanoparticles in steam‐assisted gravity drainage (SAGD) for improved recovery and partial upgrading of bitumen

The Canadian Journal of Chemical Engineering, EarlyView.
Key improvements obtained by incorporating nanoparticles into a lab‐scale SAGD process configuration. The bar plots show enhanced oil recovery, reduced viscosity, and increased asphaltene adsorption in nanoparticle‐assisted scenarios compared with conventional SAGD.
Luis Prada, Saleh S. Baakeem, Mabkhot BinDahbag, M. Daniela Contreras‐Mateus, Jesus Botett, Afif Hethnawi, Nashaat N. Nassar   +6 more
wiley   +1 more source

Paleopedology of soils in thick Holocene loess, Nebraska, USA

Revista Mexicana de Ciencias Geológicas, 2018
Bignell Loess is a Holocene loess unit that has accumulated in the central Great Plains since 9,000 14C yr BP. The Brady Soil separates Bignell Loess from last glacial Peoria Loess and thick sections, which can reach 6 m thickness, may contain four ...
Peter M. Jacobs, Joseph A. Mason
doaj  

Three-dimensional limit equilibrium method for rock slopes by constructing normal stress distribution over sliding surface and its application

Yantu gongcheng xuebao
The researches on the three-dimensional stability of rock slopes are of important theoretical significance and engineering application prospect. The conventional equivalent Mohr-Coulomb strength parameters used to analyze the stability of rock slopes ...
LU Kunlin 1, MEI Yifan 1, WANG Linfei 2, JIA Senlin 1, QIN Tao 1, ZHU Dayong 3
doaj   +1 more source

Geological and geotechnical challenges on the Great Dyke of Zimbabwe and their impact on hardrock pillar design

Deep Underground Science and Engineering, EarlyView.
The Great Dyke of Zimbabwe is notable for its rich platinum group metal deposits but poses significant geological and geotechnical challenges due to its complex rock types and structural features. Traditional pillar design methods are insufficient for addressing these complexities; the study suggests incorporating advanced techniques such as machine ...
Tawanda Zvarivadza, Hendrik Grobler, Moshood Onifade, Manoj Khandelwal   +3 more
wiley   +1 more source

The development of an inventory test on library information and a related unit of instruction [PDF]

, 1949
Thesis (M.A.)--Boston University, 1949.
Gile, Eleanor
core   +1 more source

Permeability of granite from a shallow buried mountain pipe gallery tunnel under unloading confining pressure

Deep Underground Science and Engineering, EarlyView.
Triaxial compression tests under unloading confining pressure conditions were conducted to systematically analyze the permeability behavior of granite retrieved from the different classification surrounding rocks. Abstract The rock mass within mountain tunnels undergoes complex changes in permeability, strength, and deformation during tunneling ...
Xiaoyan Zhang, Yonghua Ye, Jianping Zuo, Baojiang Han, Weigang Jiao   +4 more
wiley   +1 more source