Mineral-geochemical features of the minor river sediments in the interfluve area of the Lo and Kau rivers (Northern Vietnam) by Oleg Gennadievich Savichev, Victor Alekseevich Domarenko, Elena Vladimirovna Peregudina, Mikhail Viktorovich Nguyen Van Luyen, Mikhail Viktorovich Shaldybin, Aleksey Vladimirovich Kanaki

“…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

Incorporation of Hydroxyapatite into Glass Ionomer Cement (GIC) Formulated Based on Alumino-Silicate-Fluoride Glass Ceramics from Waste Materials by Wan Nurshamimi Wan Jusoh, Khamirul Amin Matori, Mohd Hafiz Mohd Zaid, Norhazlin Zainuddin, Mohammad Zulhasif Ahmad Khiri, Nadia Asyikin Abdul Rahman, Rohaniah Abdul Jalil, Esra Kul

“…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

Tribological behavior and wear mechanism of modified nano-SiO₂ reinforced epoxy composites by TIAN Jin, GAO Li, CAI Bin, QI Ze-hao, TAN Ye-fa

“…The surface functional groups and chemical elements of the functionalized nano-SiO₂were analyzed and the mechanical and tribological properties of the T-SiO₂/EP were tested. …”
Get full text

FLUORESCENT X-RAY IMAGING WITH PINHOLE CAMERA by Yu. I. Dudchik, G. I. Hilko, Yu. K. Lomashko

“…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

Virtual Testing of Composite Structures Made of High Entropy Alloys and Steel by Victor Geantă, Tudor Cherecheș, Paul Lixandru, Ionelia Voiculescu, Radu Ștefănoiu, Daniel Dragnea, Teodora Zecheru, Liviu Matache

“…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

An Updated Review of Toxicity Effect of the Rare Earth Elements (REEs) on Aquatic Organisms by Nemi Malhotra, Hua-Shu Hsu, Sung-Tzu Liang, Marri Jmelou M. Roldan, Jiann-Shing Lee, Tzong-Rong Ger, Chung-Der Hsiao

“…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

Geochemical features of migration flows in the impact zone of mining technogenesis (Mednogorsk) by Tatyana Vladimirovna Korneeva, Nataliya Viktorovna Yurkevich, Pavel Gayazovich Aminov

“…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

A study of the solidification and stability mechanisms of heavy metals in electrolytic manganese slag-based glass-ceramics by Jiaqi Wang, Fenglan Han, Fenglan Han, Baoguo Yang, Baoguo Yang, Zhibing Xing, Tengteng Liu

“…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

Archaeometry and Archaeology: preliminary studies of the ceramics from archaeological sites of the upper Madeira river/Rondônia - Brazil. by Angislaine Freitas Costa, Casimiro Sepúlveda Munita, Silvana Zuse, Renato Kipnis

“…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

تحديد محتوى Sr و Ba و Ca و Fe و2-4SO في المياه المرافقة للنفط الخام السوري by محمد معروف, سعد الدين خرفان, محمد أسعد

“…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

One-Pot Hydrothermal Preparation of Hydroxyapatite/Zinc Oxide Nanorod Nanocomposites and Their Cytotoxicity Evaluation against MG-63 Osteoblast-like Cells by Vignesh Raj Sivaperumal, Rajkumar Mani, Veerababu Polisetti, Kanakaraj Aruchamy, Taehwan Oh

“…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 N₂ adsorption/desorption isotherm techniques, respectively. …”
Get full text

Scanning Electron Microscope Analysis of Polypropylene Filter Cartridges Used in Drinking Water Purification Systems by Andrei Zaharia, Valentin Nedeff, Juan A. López-Ramírez, Emilian Moșneguțu, Narcis Bârsan, Mirela Lehadus-Panaite, Jamroziak Krzysztof, Claudia Tomozei

“…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

Revealing the Secrets behind the Color and Sea-Wave Patterns of Larimar by Hao-Ming Huang, Yu-Hong Shih, Huei-Fen Chen, Hao-Yang Lee, Jiann-Neng Fang, Chuan-Chou Shen, Bing-Sheng Yu

“…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

Influence of carrier effect on Pd/Al2O3 for methane complete catalytic oxidation by Shengpan Peng, Ziran Ma, Jing Ma, Hongyan Wang, Jingyun Chen, Hui Wei, Yonglong Li, Zhimin Ao, Baodong Wang

“…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

<i>Capparis spinosa</i> L. Cenopopulation and Biogeochemistry in South Uzbekistan by Murodjon Isagaliev, Evgeny Abakumov, Avazbek Turdaliev, Muzaffar Obidov, Mavlonjon Khaydarov, Khusnida Abdukhakimova, Tokhirjon Shermatov, Iskandar Musaev

“…In this case, the samples were irradiated in a nuclear reactor with a neutron flux of 5 × 10¹³ neutrons/cm² 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

Ecological Parameters of Water Bodies in the Northern Part of the Upper Volga Region with River Flow Regulations by Bernard Gałka, Alexandra Novak, Mikhail Novak, Dmitry Vinogradov, Ryszard Polechoński

“…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

Modeling and Optimization of Steel Machinability with Genetic Programming: Industrial Study by Miha Kovačič, Shpetim Salihu, Gašper Gantar, Uroš Župerl

“…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

Comparative analysis of heavy metals accumulation in the soil - plant system by the geo-accumulation index and transpiration rate of Zea mays L by Astghik Rafikovna Sukiasyan

“…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

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 by Mario Morales-Máximo, Carlos A. García, Luis Fernando Pintor-Ibarra, José Juan Alvarado-Flores, Borja Velázquez-Martí, José Guadalupe Rutiaga-Quiñones

“…Other average results in sawdust and (shavings) are the following: initial moisture content 15.3% (16.8%), apparent density 169.23 kg/m³ (49.25 kg/m³), 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

Synthesis of powdered and beaded chitosan materials modified with ZnO for removing lead (II) ions by Pimploy Ngamsurach, Nitthawan Namwongsa, Pornsawai Praipipat

“…C, O, and N were the main chemical elements in chitosan materials, and Zn was detected in CZB and ZCB. …”
Get full text