Results 31 to 40 of about 13,713 (230)
Irrigation and Drainage, EarlyView.ABSTRACT Soil salinization is a critical threat, impacting 20% of the world's irrigated lands and jeopardizing food security. In Ethiopia's Mirab Abaya district of the Gamo Zone, unsustainable irrigation methods exacerbate this issue. This paper examines local farmers' soil–water management systems and their awareness of salinization, aiming to educate
Oloba Jobe +3 more
wiley +1 more source
Minerals Engineering, 2021 Sulphoxy anions in recycled flotation process waters possess the potential to reduce the flotation efficacy of flotation reagents. In this study, dithionite ions and their interaction with thiol collectors in solution and the surface modifications of ...
N. Mhonde +3 more
semanticscholar +1 more source
Reconnaissance study of watershed and cave sediment sources discharging from a karst spring, Iowa
Agrosystems, Geosciences &Environment, Volume 9, Issue 3, September 2026.Abstract Springs discharging from karst landscapes provide sustainable flows to natural ecosystems and support productive fish hatcheries but sediment discharging from springs threatens the long‐term sustainability of hatcheries. In this study, we conducted a reconnaissance study to evaluate watershed and cave sediment sources discharging to Siewers ...
Keith E. Schilling +4 more
wiley +1 more source
Study of Galena Ore Powder Sintering and Its Microstructure
MetalsGalena is a natural mineral enriched with lead sulfide (PbS). It typically forms in hydrothermal veins associated with igneous rocks and can also occur as a gangue mineral in other ore deposits.
Bety S. Al-Saqarat +10 more
doaj +1 more source
Bioleaching of pollymetallic sulphide concentrate using thermophilic bacteria [PDF]
Hemijska Industrija, 2014 An extreme thermophilic, iron-sulphur oxidising bacterial culture was isolated and adapted to tolerate high metal and solids concentrations at 70°C.
Vuković Milovan +4 more
doaj +1 more source
Geophysical Prospecting, Volume 74, Issue 7, September 2026.ABSTRACT Time‐domain electromagnetics (TEM) is a valuable tool for exploring seafloor hydrothermal deposits, which are characterized by variations in resistivity and chargeability. Several surveys using the Waseda integrated seafloor time‐domain electromagnetics (WISTEM) have been conducted.
Masayuki Motoori +4 more
wiley +1 more source
The significance of galena Pb model ages and the formation of large Pb-Zn sedimentary deposits
, 2021 In an attempt to clarify the significance of Pb model ages in Pb-Zn sedimentary deposits, we report high-precision Pb isotopic compositions for 64 galenas and 52 K-feldspars, the former from ores and the latter separated from granites.
J. Milot +5 more
semanticscholar +1 more source
Yankuang ceshiThe weathering behavior of galena, as the main lead ore, directly affects the migration and fate of heavy metal Pb in the environment. Weathering environment and time both affect the weathering products of galena.
Binbin CHU +4 more
doaj +1 more source
International Journal of Electrochemical Science, 2020 This work is focused on understanding the interaction of native galena minerals and xanthate as well as their influence on the process of mineral separation by flotation and leaching techniques.
E.D. Moreno-Medrano +5 more
doaj +1 more source
Monte carlo assessment of advanced shielding materials for space‐efficient radiotherapy vault design
Journal of Applied Clinical Medical Physics, Volume 27, Issue 8, August 2026.Abstract Background Conventional radiotherapy vault shielding typically employs 2 to 3 meters of ordinary concrete, consistent with NCRP Report 151 reference data. While NCRP 151 specifies dose‐based design goals rather than mandating particular materials, the practical default of concrete results in vault footprints of 150 to 200 m2 per linac, which ...
Beechui Koo +6 more
wiley +1 more source