Results 21 to 30 of about 501,483 (320)
Stabilization of Bentonite Nanoparticles Modified by Cationic Surfactant on Pumice Aggregates for the Removal of Nitrate from Aqueous Solution [PDF]
آب و فاضلاب, 2020 Nitrate contamination in water resources has become an important issue because of the environmental issue and potential risk to human health. The aim of this study is investigating the stabilization of modified bentonite nanoparticles by cationic ...
Zeinab Mikhak Beiranvand +2 more
doaj +1 more source
British medical journal, 2018 Objective To assess whether laparoscopic cholecystectomy is superior to percutaneous catheter drainage in high risk patients with acute calculous cholecystitis. Design Multicentre, randomised controlled, superiority trial.
C. Loozen +18 more
semanticscholar +1 more source
Review of Passive Systems for Acid Mine Drainage Treatment
Mine Water and the Environment, 2017 When appropriately designed and maintained, passive systems can provide long-term, efficient, and effective treatment for many acid mine drainage (AMD) sources.
J. Skousen +6 more
semanticscholar +1 more source
Comparison of Some Split-window Algorithms to Estimate Land Surface Temperature from AVHRR Data in Southeastern Tehran, [PDF]
Desert, 2009 Land surface temperature (LST) is a significant parameter for many applications. Many studies have proposedvarious algorithms, such as the split-window method, for retrieving surface temperatures from two spectrallyadjacent thermal infrared bands of ...
S.M. Behbahani +2 more
doaj +1 more source
Journal of Water and Climate Change, 2023 As a natural hazard, drought is a complex multivariate phenomenon that requires more comprehensive analysis. In this study, we studied meteorological, agricultural, and hydrological drought events with precipitation, soil moisture, and stream flow data ...
P. Kanthavel, C. K. Saxena, R. K. Singh
doaj +1 more source
Viscoelastic mechanics of tidally induced lake drainage in the Amery grounding zone [PDF]
arXiv, 2023 Drainage of supraglacial lakes to the ice-sheet bed can occur when a hydrofracture propagates downward, driven by the weight of the water in the lake. For supraglacial lakes in the grounding zones of Antarctic glaciers, the mechanics of drainage is complicated by their proximity to the grounding line.
arxiv
Gravity-driven coatings on curved substrates: a differential geometry approach [PDF]
, 2022 Although the drainage and spreading processes of thin liquid films on substrates have received growing attention during the last decades, the study of three-dimensional cases is limited to a few studies on flat and axisymmetric substrates. In this work, we exploit differential geometry to study the drainage and spreading of thin films on generic curved
arxiv +1 more source
Guan'gai paishui xuebao, 2021 【Background】Low-pressure pipeline using pipes in lieu of open channels to convey water is a water-saving irrigation technology as it reduces leakage and evaporation.
LI Bin, LI Na, LI Duanming, GONG Shiwen
doaj +1 more source
Advanced Deep Learning Architectures for Accurate Detection of Subsurface Tile Drainage Pipes from Remote Sensing Images [PDF]
, 2022 Subsurface tile drainage pipes provide agronomic, economic and environmental benefits. By lowering the water table of wet soils, they improve the aeration of plant roots and ultimately increase the productivity of farmland. They do however also provide an entryway of agrochemicals into subsurface water bodies and increase nutrition loss in soils.
arxiv +1 more source