Results 31 to 40 of about 526,182 (348)
Energy transfer of intrinsic electronic excitation to impurities in the CaSO4 − Mn crystal
Eurasian Journal of Physics and Functional Materials, 2021 The nature of the impurity emission center and the energy transfer mechanisms from intrinsic electronic excitations to the Mn2+ impurity centers in the CaSO4 − Mn crystal have been investigated.
T.N. Nurakhmetov +11 more
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Selecting the geology filter wavelengths for the ExoMars Panoramic Camera instrument [PDF]
, 2012 The Panoramic Camera (PanCam) instrument will provide surface remote sensing data for the ExoMars mission. A combination of wide-angle stereo, multispectral, and high resolution imagery will generate contextual geological information to help inform which
Davis, Lottie E. +26 more
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Promising method of ion exchange separation of anions before reverse osmosis [PDF]
Archives of Environmental Protection, 2021 A method to improve the quality of purifi ed water, reduce the cost of reagents for the regeneration of resin and create low-waste processes have been developed. This paper presents the results of ion exchange separation of sulfates and nitrates using AV-
Inna Trus +3 more
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Thermochemistry of yavapaiite KFe(SO4)2: Formation and decomposition [PDF]
, 2005 Yavapaiite, KFe(SO4)2, is a rare mineral in nature, but its structure is considered as a reference for many synthetic compounds in the alum supergroup. Several authors mention the formation of yavapaiite by heating potassium jarosite above ca. 400°C.
Forray, Ferenc Lázár +2 more
core +1 more source
Crystals, 2023 Belomarinaite KNaSO4 (space group P3m1, a = 5.6072(3), c = 7.1781(4) Å and Z = 2) has been studied by high-temperature single crystal X-ray diffraction. The K and Na atoms are disordered, and M1(1c) and M2(1b) sites merge into an M1(2d)(K50%/Na50%) site ...
Andrey Shablinskii +5 more
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Assessment of Efficiency of Nutrient Uptake of Different Sources of Zn, Mn, Cu and B in Zea mays
Agriculture, 2020 Advances in plant nutrition can be achieved by improving the delivery of micronutrients to the plants. The objective of this research was to compare the efficiency of uptake of different sources of zinc, copper and manganese (sulfates ...
Andres Reyes Gaige +2 more
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The effect of low temperature on the Raman spectra of calcium-rich sulfates on Mars [PDF]
, 2023 Raman spectra (532 nm diode laser) of gypsum, syngenite and görgeyite powders were studied from 273 to 83 K every −10 K. Although it was found that not all the Raman peaks are temperature-sensitive, the effect of temperature on the Raman signal of some ...
Juan Manuel Madariaga +9 more
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Acta Crystallographica Section E Structure Reports Online, 2010 In the crystal structure of the title compound, 2C(2)H(7)N(2) (+)·SO(4) (2-), which contains four cations and two anions in the asymmetric unit, the ions are inter-connected by an extensive hydrogen-bonding system whereby two of the O atoms of sulfate ion are hydrogen-bonded to the amidinium H atoms of two cations, leading to the formation of two eight-
Zdeněk Jalový +1 more
openaire +3 more sources
工程科学学报, 2016 Simulation experiment was performed on the performance of concrete exposed to sulfate attack and dry-wet cycles. Changes in ultrasonic velocity and acoustic emission activities for concrete at different erosion periods were tested by uniaxial compression
LIU Juan-hong +3 more
doaj +1 more source
The role of heparan sulfates in protein aggregation and their potential impact on neurodegeneration
FEBS Letters, 2018 Neurodegenerative disorders, such as Alzheimer's, Parkinson's, and prion diseases, are directly linked to the formation and accumulation of protein aggregates in the brain.
Auriane Maïza +7 more
semanticscholar +1 more source