Results 51 to 60 of about 241,189 (213)
Geophysical Research LettersThe mixed Fe(II)/Fe(III) mineral magnetite [Fe3O4] of various stoichiometric and non‐stoichiometric compositions have been reported in Martian soils and rocks by several rover missions.
Kaushik Mitra +6 more
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Monitoring biological degradation of historical stone using hyperspectral imaging
European Journal of Remote SensingStone is one of the most common materials used as a building material in central Europe for centuries. Historical objects are endangered by degradation procedures coming from physical, chemical and biological weathering agents.The weathering process ...
Eva Matoušková +3 more
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Boron isotopes fractionation and its application progress in groundwater research
Shuiwen dizhi gongcheng dizhiBoron (B) is ubiquitous in natural water bodies and rocks. Because of the large relative mass difference between the two stable isotopes of B, 10B and 11B, the B isotopes are susceptible to significant fractionation.
Chenbo LEI, Huaming GUO, Shiping XING
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Natural weathering performance of thermally treated poplar and black pine wood
Maderas: Ciencia y Tecnología, 2021 Wood of poplar (Populus sp.) and black pine (Pinus nigra) species was subjected to thermal treatment under variant conditions of temperature, 180 ºC and 200 ºC, and duration of 3 h, 5 h, 7 h, and its resistance to natural weathering was investigated ...
Vasiliki Kamperidou, Ioannis Barboutis
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Mechanical degradation and microcrack evolution of weathered basalt under freeze–thaw cycles
Frontiers in Earth ScienceFreeze-thaw cycles (FTCs) play an important role in the degradation of rock masses and the stability of slopes in cold, high-altitude regions. However, the degradation behaviour of basalt with different weathering degrees under freeze-thaw (F-T ...
Jiayi Chen +4 more
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The contribution of weathering of the main Alpine rivers on the global carbon cycle [PDF]
, 2013 On geological time-scales the carbon fluxes from the solid Earth to the atmosphere mainly result from volcanism and metamorphic-decarbonation processes, whereas the carbon fluxes from atmosphere to solid Earth mainly depend on weathering of silicates and
Donnini, Marco +5 more
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Investigating plywood behaviour in outdoor conditions [PDF]
, 2016 Moisture behaviour of plywood is investigated in combination with detailed structural analysis. In the lab, neutron radiography and X-ray computed tomography (X-ray CT) were used to map the moisture distribution and internal structure of plywood ...
De Windt, Imke +6 more
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Frontiers in Water, 2021 In the northern hemisphere within snow-dominated mountainous watersheds north-facing slopes are commonly more deeply weathered than south-facing slopes. This has been attributed to a more persistent snowpack on the north facing aspects.
Travis Nielson +4 more
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Rates of sustainable forest harvest depend on rotation length and weathering of soil minerals [PDF]
, 2014 Removals of forest biomass in the northeastern US may intensify over the coming decades due to increased demand for renewable energy. For forests to regenerate successfully following intensified harvests, the nutrients removed from the ecosystem in the ...
Blum, Joel D. +3 more
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An Electronic Nose Based Method for the Discrimination of Weathered Petroleum-Derived Products
Sensors, 2018 In recent years pollution due to hydrocarbon spills has increased markedly as a result of the numerous advances in technologies and industrial processes. Anthropogenic activities (accidental or illegal) are responsible for most of these incidents.
María José Aliaño-González +6 more
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