Results 11 to 20 of about 119,769 (265)
Remote Sensing, 2022 The Hiendelaencina district in Spain was the most important silver producer in Europe during 1844–1925. At the end of the 20th century, with mines having closed, some waste rock dumps were reprocessed, and the sludge from the flotation process was stored
Silvia Martín-Velázquez +5 more
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Effect of Nanosilica on Bending Strength and Thermal Stability of Glass Fiber/Phenolic Nanocomposite [PDF]
علوم و تکنولوژی پلیمر, 2016 Glass fiber/phenolic composites are effectively used as heat shields for fabrication of cooled combustion chambers. To improve the performance of these composites as well as to lower their costs, the use of nanosized silicon dioxide (SiO2) particles has ...
Aidin Mirzapour +2 more
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Numerical Simulation on Erosion Wear of Flat Oval Elbow
Shiyou jixie, 2022 In order to study the erosion wear characteristics of sand-containing gas on elbow during natural gas transportation and improve the wear resistance of the elbow, on the basis of fully analyzing the fluid erosion characteristics of circular pipe, a flat ...
Mo Li, Guo Zhengxing
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Rock Abundance and Erosion Rate at the Zhurong Landing Site in Southern Utopia Planitia on Mars
Earth and Space Science, 2022 Rocks on the Martian surface exhibit signatures of geological activities. Rock distribution is also an important factor for landing site selection for exploration missions.
Zeyu Chen +7 more
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Shiyou jixie, 2022 The erosion and selection of deep-water sand control screen are related to the subsequent safe and efficient development of gas field.In order to study the erosion and selection of screen with small size sand particles passing through gravel layers ...
Qiu Hao +6 more
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Erosion–corrosion behavior of X65 carbon steel in oilfield formation water
International Journal of Electrochemical Science, 2019 Erosion–corrosion behavior of an X65 steel reducer in oilfield formation water containing quartz sand particles was investigated using circulating loop system and scanning electron microscopy (SEM).
Jingbo Liu, Jihui Wang, Wenbin Hu
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The empirical basis for modelling glacial erosion rates [PDF]
Nature Communications, 2020 AbstractGlaciers are highly effective agents of erosion that have profoundly shaped Earth’s surface, but there is uncertainty about how glacial erosion should be parameterised in landscape evolution models. Glacial erosion rate is usually modelled as a function of glacier sliding velocity, but the empirical basis for this relationship is weak. In turn,
Simon J. Cook +4 more
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Rapid Estimation of Soil Erosion Rate from Exhumed Roots (Xiaolong Mts, China)
LandSoil erosion is a challenge worldwide, including in China. The dendrogeomorphic method was applied, for the first time, at Xiaolong Mts in Gansu Province to obtain a quantitative estimate of the soil erosion rate.
Miklós Kázmér +3 more
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Herba Polonica, 2016 Introduction: Dietary supplements are a good way to supplement the deficiency of certain micronutrients and organic components (therapeutic agents) in human body. They are most often available in concentrated form as tablets, capsules, powder or liquid.
Głogowski Adrian +5 more
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ON EROSION PROCESS OF COHESIVE SEDIMENT AND EROSION RATE FORMULA
PROCEEDINGS OF HYDRAULIC ENGINEERING, 2003 Erosion process of soft cohesive material which deposited naturally on a river bed is the objective of the present paper. Extensive series of experiments, the condition of which were set systematically, were conducted to evaluate the erosion rate by running water in a closed conduit. The test sample was the mixture of silica sand. clay and water.
SEKINE, Masato +3 more
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