Results 11 to 20 of about 1,697 (218)

Dose-dependent effect of electron acceptor and donor on dissimilatory sulfate reduction by bacteria Desulfovibrio Piger Vib-7 of human intestine

open access: yesБіологічні студії, 2014
Growth of Desulfovibrio piger Vib-7 bacteria of human intestine under the influence of the electron acceptor and donor in different concentrations and the parameters of dissimilatory sulfate reduction have been studied.
I. V. Kushkevych
doaj   +1 more source

Mechanisms formation of electron-hole trap centers in LiKSO4 crystall

open access: yesEurasian 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
doaj   +1 more source

Energy transfer of intrinsic electronic excitation to impurities in the CaSO4 − Mn crystal

open access: yesEurasian 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
doaj   +1 more source

Diacetamidinium sulfate [PDF]

open access: yesActa 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

Promising method of ion exchange separation of anions before reverse osmosis [PDF]

open access: yesArchives 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
doaj   +1 more source

Novel High-Temperature Modification of Belomarinaite KNaSO4: Crystal Structure and Thermal Order–Disorder Phase Transitions

open access: yesCrystals, 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
doaj   +1 more source

Assessment of Efficiency of Nutrient Uptake of Different Sources of Zn, Mn, Cu and B in Zea mays

open access: yesAgriculture, 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
doaj   +1 more source

Ultrasonic velocity and acoustic emission properties of concrete eroded by sulfate and its damage mechanism

open access: yes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

Growth of mixed K2NixCo(1−x)(SO4)2 · 6H2O crystals for large supercooling without spontaneous crystallization in solution

open access: yesMaterials Research Express, 2019
A scheme for growing mixed K _2 Ni _x Co _(1−x) (SO _4 ) _2  · 6H _2 O (KCNSH) single crystals under conditions of supercooling at 5 °C–10 °C without spontaneous crystallization in solution for more than a month has been proposed and implemented.
Andrei A Zhokhov   +7 more
doaj   +1 more source

Growth of various strains of sulfate-reducing bacteria of human large intestine

open access: yesБіологічні студії, 2012
New strains of sulfate-reducing bacteria from human intestine are obtained. These bacteria are vibrio-like (strains SRB Vib-1, SRB Vib-2, SRB Vib-3) and short rod-like (strains SRB Rod-4 and SRB Rod-5) forms.
I. V. Kushkevych, O. M. Moroz
doaj   +1 more source

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