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1021
Study of the quality index of groundwater (GWQI) and its use for irrigation purposes using the techniques of the geographic information system (GIS) of the plain Nekor-Ghiss (Moroc...
Published 2023-05-01“…These analyzes showed that the water samples were highly mineralized (>1,500 mg/L), with hardness (83.5% of the samples were very hard) and high concentrations of chemical elements, such as Cl−, Mg2+, Na+ and SO42-. To assess the quality of water in the study area for irrigation and consumption purposes, we used the quality index (GWQI) as well as a multi-criteria analysis based on “geographic information system” by assigning a weight to the different water quality parameters. …”
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1022
Recycling of Polycarbonate/Acrylonitrile Butadiene Styrene Blends with Flame Retardant Additives for 3D Printing Filament
Published 2024-01-01“…To study the effectiveness of waste recyclability, 3D printing filaments were produced through the extrusion process. Chemical elements, functional groups, and thermal and mechanical properties of recycled products were evaluated using EDX, FTIR, DSC, and universal tensile testing equipment, respectively. …”
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1023
Elementary characterization of samples of Portland cement, natural gypsum and phosphogypsum mortars from Brazil
Published 2019-02-01“…Therefore, the objective of this work was to characterize and quantify the most common chemical elements in the samples of Brazilian Portland cement, natural gypsum, and phosphogypsum mortars by means of X-ray dispersive energy spectroscopy (EDXRF), as well as to evaluate the strength of these mortars. …”
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1024
Ecological and geochemical features of mercury load on the territory of south of Western Siberia
Published 2023-12-01“…Aspen leaves, widely used to analyze the biogeochemical cycle of chemical elements and their migration in the "soil–plant" system, reflect the elemental composition of growing environment and can act as a biogeoindicator for biogeochemical studies. …”
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1025
Post-depositional processes of elemental enrichment inside dark nodular masses of an ancient aeolian dune from A Coruña, Northwest Spain
Published 2013-08-01“…Data of the concentrations of chemical elements were obtained by instrumental neutron activation analysis (INAA) and complemented by mineralogical and microchemical studies, using X-ray powder diffraction (XRD) and scanning electron microscopy (SEM) / energy dispersive X-ray spectrometry (EDS). …”
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1026
Mercury in leaf litter of subtaiga forests on the natural territory
Published 2018-08-01“…Leaf litter is an important component of the biological cycle in boreal forests and the source of chemical elements entering the soil. The main aim is to reveal the regularities of mercury distribution in the leaf litter of mixed coniferous-deciduous forests in the natural territory. …”
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1027
Assessing contamination sources and environmental hazards for potentially toxic elements and organic compounds in the soils of a heavily anthropized area: the case study of the Ace...
Published 2022-09-01“…The contamination source analysis revealed that, as regards the concentrations of chemical elements, they have a dual origin due to both the natural composition of the soils (Co-Fe-V-Tl-Be) and the pressure exerted on the environment by anthropic activities such as vehicular traffic (Pb-Zn-Sb-Sn) and agricultural practices (Cu-P). …”
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1028
Corrosion Resistance and Ion Release of Dental Prosthesis of CoCr Obtained by CAD-CAM Milling, Casting and Laser Sintering
Published 2020-06-01“…The CAD-CAM milled samples presented lower ion-release levels and better corrosion resistance due to the total solubility of the chemical elements in only one phase with the same chemical composition. …”
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1029
Correlative methods for dual-species quantum tests of the weak equivalence principle
Published 2015-01-01“…Matter-wave interferometers utilizing different isotopes or chemical elements intrinsically have different sensitivities, and the analysis tools available until now are insufficient for accurately estimating the atomic phase difference under many experimental conditions. …”
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1030
Elementary characterization of Ti metal alloys used in implant dentistry
Published 2019-02-01“…However, sometimes other alloys are employed and consequently it is essential to study the chemical elements present in those alloys that could bring prejudice for the health. …”
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1031
Hydrochemical evaluation of spring's water in Mila Wilaya, North-East Algeria
Published 2023-07-01“….; Determination of the origin of the chemical elements that constitute the mineral charge of these waters.; The chemical characteristics of spring's water have been shown to be influenced by the leaching process, which shows the influence of local geology.; Spring water bears the signature of the flow of precipitation that seeps into the soil and changes its chemical quality…”
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1032
Using Mg/Ca Ratios from the Limpet <i>Patella depressa</i> Pennant, 1777 Measured by Laser-Induced Breakdown Spectroscopy (LIBS) to Reconstruct Paleoclimate
Published 2021-03-01“…In this study, calibration-free LIBS (CF-LIBS) methods were applied to estimate molar concentrations of chemical elements on biogenic calcium carbonate. The Mg/Ca ratio evolution along the shell growth axis was compared with stable oxygen isotope (δ<sup>18</sup>O) profiles obtained from these same limpets and the SST at the place where the mollusk grew to determine if the sequences obtained correctly reflected environmental conditions during the life-span of the mollusk. …”
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1033
Rational Design of Monolithic g-C<sub>3</sub>N<sub>4</sub> with Floating Network Porous-like Sponge Monolithic Structure for Boosting Photocatalytic Degradation of Tetracycline und...
Published 2023-05-01“…The phase composition, morphology, size, and chemical elements of the FSCN were studied using XRD, SEM, XPS, and UV–visible spectrophotometry. …”
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1034
Synthesis and characterization of PANI nanofibers high-performance thin films via electrochemical methods
Published 2022-01-01“…The PANI composition, which consists of the chemical elements carbon (C), oxygen (O), and nitrogen (N), is also confirmed by XPS (N). …”
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1035
In Vitro Mechanical and Biological Properties of 3D Printed Polymer Composite and β-Tricalcium Phosphate Scaffold on Human Dental Pulp Stem Cells
Published 2020-07-01“…Physicochemical properties of the scaffolds, including pore structure, chemical elements, and compression modulus, were characterized. hDPSCs were cultured on scaffolds for subsequent investigations of biocompatibility and osteoconductivity. …”
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1036
Protective Geopolymer Coatings Containing Multi-Componential Precursors: Preparation and Basic Properties Characterization
Published 2020-08-01“…The results indicate that balancing strength and setting behavior is viable with the aid of the multi-componential precursor and the mixture design based on total molar ratios of key oxides or chemical elements. Adhesive strength of the optimized GPC mixtures was ranged from 1.5 to 3.4 MPa. …”
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1037
KOMPARASI EFISIENSI MATERIAL BAJA KARBON St 37, BAJA KARBON St 41 DAN BAJA KARBON St 60 TERHADAP LAJU KOROSI DI MEDIA AIR MUARA SUNGAI (PAYAU) DENGAN METODE ELEKTROKIMIA
Published 2013-11-01“…the use of steel in building structures in estuaries susceptible to corrosion due to environmental water containing chemical elements that are corrosive. Factors affecting corrosion such as temperature, acidity (pH), salinity (NaCl), the levels of chloride (Cl), the levels of sulfate (SO) as well as dissolved oxygen, causing easily corroded carbon steel. …”
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1038
Ultrastructural studies on implants failure with immediate or late loading
Published 2023-09-01“…The ratios between the chemical elements calcium and nitrogen (Ca/N), phosphorus and nitrogen (P/N), respectively calcium and phosphorus (Ca/P) were calculated for each of the 8 samples and were statistically analyzed. …”
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1039
Preparation and Characterization of Dextran Coated Iron Oxide Nanoparticles Thin Layers
Published 2021-07-01“…In addition, the distribution of the chemical elements into the DIO-NPs thin layer was analyzed by Glow Discharge Optical Emission Spectrometry (GDOES). …”
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1040
Magnetite-Based Nanostructured Coatings Functionalized with <i>Nigella sativa</i> and Dicloxacillin for Improved Wound Dressings
Published 2022-12-01“…The distribution of chemical elements and functional groups in the resulting coatings was evidenced by Fourier transform infrared (FTIR) spectrometry. …”
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