-
961
Mineral-geochemical features of the minor river sediments in the interfluve area of the Lo and Kau rivers (Northern Vietnam)
Published 2017-11-01“…It is shown that concentrations of some chemical elements find the direct ratio to the contents of chlorite and in inverse proportion to the contents of quartz. …”
Get full text
Article -
962
Incorporation of Hydroxyapatite into Glass Ionomer Cement (GIC) Formulated Based on Alumino-Silicate-Fluoride Glass Ceramics from Waste Materials
Published 2021-02-01“…Based on Energy Dispersive X-ray (EDX) analysis, the detection of chemical elements in the cement samples were originated from chemical compounds used in the preparation of glass ceramics powder and also the polyacid utilized in initiating the reaction of GIC.…”
Get full text
Article -
963
Tribological behavior and wear mechanism of modified nano-SiO<sub>2</sub> reinforced epoxy composites
Published 2019-11-01“…The surface functional groups and chemical elements of the functionalized nano-SiO<sub>2</sub>were analyzed and the mechanical and tribological properties of the T-SiO<sub>2</sub>/EP were tested. …”
Get full text
Article -
964
FLUORESCENT X-RAY IMAGING WITH PINHOLE CAMERA
Published 2016-09-01“…This method allows to obtain information on a spatial distribution of various chemical elements to the areas of several square centimeters with spatial resolution at the level of 50–100 μm. …”
Get full text
Article -
965
Virtual Testing of Composite Structures Made of High Entropy Alloys and Steel
Published 2017-11-01“…High entropy alloys (HEA) are metallic materials obtained from a mixture of at least five atomic-scale chemical elements. They are characterized by high mechanical strength, good thermal stability and hardenability. …”
Get full text
Article -
966
An Updated Review of Toxicity Effect of the Rare Earth Elements (REEs) on Aquatic Organisms
Published 2020-09-01“…Department of Energy, a group of seventeen elements found in the Earth’s crust. These chemical elements are vital and irreplaceable to the world of technology owing to their unique physical, chemical, and light-emitting properties, all of which are beneficial in modern healthcare, telecommunication, and defense. …”
Get full text
Article -
967
Geochemical features of migration flows in the impact zone of mining technogenesis (Mednogorsk)
Published 2017-09-01“…Its solution allows describing the nature of the geochemical specifics of technogenic water, and the mechanisms of their formation, identifying the sources of chemical elements and processes of secondary mineral formation, forms of migration of toxic elements in the technogenic streams and their impact on the environment. …”
Get full text
Article -
968
A study of the solidification and stability mechanisms of heavy metals in electrolytic manganese slag-based glass-ceramics
Published 2022-09-01“…The mechanisms of heavy metal migration, transformation, and solidification/isolation in glass-ceramic curing bodies were investigated by using characterization methods such as chemical elemental morphological analysis, transmission electron microscopy, and electron microprobe. …”
Get full text
Article -
969
Archaeometry and Archaeology: preliminary studies of the ceramics from archaeological sites of the upper Madeira river/Rondônia - Brazil.
Published 2021-04-01“…The analytical method used is adequate for this type of study because it is a semi-destructive technique with high sensitivity and precision that can determine chemical elements in trace and ultra-trace levels, essential for studying small variations in elemental concentrations. …”
Get full text
Article -
970
تحديد محتوى Sr و Ba و Ca و Fe و2-4SO في المياه المرافقة للنفط الخام السوري
Published 2018-12-01“…We have determined the content of certain chemical elements (Sr, Ba, Ca, and Fe) and SO4-2content within well water accompanying the Syrian crude oil in the fields of Al-Furat Petroleum Company. …”
Get full text
Article -
971
One-Pot Hydrothermal Preparation of Hydroxyapatite/Zinc Oxide Nanorod Nanocomposites and Their Cytotoxicity Evaluation against MG-63 Osteoblast-like Cells
Published 2023-01-01“…The crystallinity, morphology, presence of chemical elements, and surface area properties were studied by XRD (X-ray diffraction), FE-SEM (field emission scanning electron microscopy), TEM (transmission electron microscopy), EDS (energy dispersive spectrum) and N<sub>2</sub> adsorption/desorption isotherm techniques, respectively. …”
Get full text
Article -
972
Scanning Electron Microscope Analysis of Polypropylene Filter Cartridges Used in Drinking Water Purification Systems
Published 2023-12-01“…So, the most common chemical elements identified were Al, Si, Na, Cl, Ca, Fe, and S, having a predominantly higher intensity from the inside to the outside of the PP filter cartridge due to pressure forces and the uneven flow of filtered water.…”
Get full text
Article -
973
Revealing the Secrets behind the Color and Sea-Wave Patterns of Larimar
Published 2023-09-01“…We also discovered that it is not only the chemical elements that affect the color shades of the mineral, but the orientation of the radial fiber crystals also plays a critical role. …”
Get full text
Article -
974
Influence of carrier effect on Pd/Al2O3 for methane complete catalytic oxidation
Published 2022-08-01“…Pd/Al2O3 catalysts modified by different chemical elements (Mg, Si, Ce, and Zr) were tested for methane (CH4) catalytic combustion, and PdO nanoparticles loaded on modified Al2O3 were systematically studied. …”
Get full text
Article -
975
<i>Capparis spinosa</i> L. Cenopopulation and Biogeochemistry in South Uzbekistan
Published 2022-06-01“…In this case, the samples were irradiated in a nuclear reactor with a neutron flux of 5 × 10<sup>13</sup> neutrons/cm<sup>2</sup> s, and their quantities were determined in accordance with the half-life of chemical elements. It has also been compared with research materials conducted by world scientists on the importance and pharmacological properties of botanicals in medicine and the food industry, as well as their botanical characteristics. …”
Get full text
Article -
976
Ecological Parameters of Water Bodies in the Northern Part of the Upper Volga Region with River Flow Regulations
Published 2021-12-01“…The transformation of the Volga into a cascade of hydraulic structures with a non-flow regime has resulted in a decrease in depth and flow, and an increase in the temperature and concentration of chemical elements, which has induced the process of eutrophication. …”
Get full text
Article -
977
Modeling and Optimization of Steel Machinability with Genetic Programming: Industrial Study
Published 2021-03-01“…The data (seven parameters from secondary metallurgy, four parameters from the casting process and the content of ten chemical elements) from the serial production of calcium-treated steel grades (254 batches of 25 different steel grades from January 2018 to March 2020) were used for predicting machinability. …”
Get full text
Article -
978
Comparative analysis of heavy metals accumulation in the soil - plant system by the geo-accumulation index and transpiration rate of Zea mays L
Published 2019-12-01“…Combining the results on the content of heavy metals in corn kernels with the intensity of transpiration made it possible to investigate the correlation between the cumulative ability of the studied chemical elements and the regulation of water balance in the plant in response to drought. …”
Get full text
Article -
979
Evaluation and Characterization of Timber Residues of <i>Pinus</i> spp. as an Energy Resource for the Production of Solid Biofuels in an Indigenous Community in Mexico
Published 2021-07-01“…Other average results in sawdust and (shavings) are the following: initial moisture content 15.3% (16.8%), apparent density 169.23 kg/m<sup>3</sup> (49.25 kg/m<sup>3</sup>), ash 0.43% (0.42%), volatile material 84.9% (83.60%), fixed carbon 14.65% (15.96%), hemicelluloses 12.89% (10.68%), cellulose 52.68% (52.82%), lignin 26.73% (25.98%), extractives 7.69% (10.51%), calorific value 17.6 MJ/kg (17.9 MJ/kg). The major chemical elements in the ash were Al, K. Fe, Ca, P, Na, and Mg. …”
Get full text
Article -
980
Synthesis of powdered and beaded chitosan materials modified with ZnO for removing lead (II) ions
Published 2022-10-01“…C, O, and N were the main chemical elements in chitosan materials, and Zn was detected in CZB and ZCB. …”
Get full text
Article