Results 11 to 20 of about 26,681 (248)
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
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Mechanisms formation of electron-hole trap centers in LiKSO4 crystall
Eurasian Journal of Physics and Functional Materials, 2021 The mechanisms of creation of electron-hole trapping centers in LiKSO4 have been investigated by the methods of vacuum and thermal activation spectroscopy.
T.N. Nurakhmetov +9 more
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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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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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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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Acta Crystallographica Section E Structure Reports Online, 2008 In the title compound, C(3)H(8)N(6) (2+)·SO(4) (2-), the melaminium cations and sulfate anions are inter-connected by N-H⋯N and N-H⋯O hydrogen bonds, forming a layer in the (101) plane. The layers are connected through multiple hydrogen bonds and π-π stacking inter-actions (centroid-centroid distance of about 3.4 Å).
Hai-Peng Jing +2 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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Roles of Heparan Sulfate Sulfation in Dentinogenesis [PDF]
Journal of Biological Chemistry, 2012 Cell surface heparan sulfate (HS) is an essential regulator of cell signaling and development. HS traps signaling molecules, like Wnt in the glycosaminoglycan side chains of HS proteoglycans (HSPGs), and regulates their functions. Endosulfatases Sulf1 and Sulf2 are secreted at the cell surface to selectively remove 6-O-sulfate groups from HSPGs ...
Hayano, S. +12 more
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Toxins, 2017 If chronic kidney disease (CKD) is associated with an impairment of kidney function, several uremic solutes are retained. Some of these exert toxic effects, which are called uremic toxins. p-Cresyl sulfate (pCS) is a prototype protein-bound uremic toxin to which many biological and biochemical (toxic) effects have been attributed.
Tessa Gryp +3 more
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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
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