Showing 1,641 - 1,660 results of 1,928 for search '"atom"', query time: 0.05s Refine Results
  1. 1641

    Determination of the levels of some selected metals in ocimum lamiifolium in Wolaita Zone, Southern Ethiopia by Eyob Yishak, Teferi Tademe Dadebo

    Published 2022-10-01
    “…The aim of the present study on this medicinal plant was to determine the levels of heavy and trace metals in the leaves using the flame atomic absorption spectrometer (FAAS), which is nov AA model. …”
    Get full text
    Article
  2. 1642

    Enhancing adsorption efficiency for camouflage clothing through activated carbon and inorganic composite coatings by Kittiphop Promdee, Doungkamon Phihusut, Apisake Monthienvichienchai, Natthapong Monarumit

    Published 2025-06-01
    “…The process’s protective efficacy was analyzed by a scanning electron microscope (SEM), examining pore size distribution, UV–Vis NIR, and atomic adsorption spectroscopy (AAS). SEM images of military camouflage texture treated with activated carbon, Talc, TiO2 and Bentonite in 50x, 100x, 200x, 400x, 800x and 1,000x magnifications reveal composite materials between powder materials and binder composites in the camouflage texture, arranged in an organized amorphous configuration. …”
    Get full text
    Article
  3. 1643

    Performance of PMMA/Ta2O5 Composites as Medical Radiation Shielding: WinXCom and MCNP6 Studies by Mustafa Çağlar

    Published 2024-12-01
    “…The present study investigated the radiation attenuation properties of PMMA/Ta₂O₅ composites about shielding coefficients, including mass attenuation coefficients (MAC), half-value layer (HVL), and effective atomic number (Zeff). The findings indicated that all composites demonstrated enhanced shielding performance compared to pure PMMA. …”
    Get full text
    Article
  4. 1644
  5. 1645

    Effectiveness of Apple Cider Vinegar Immersion with and Without Mother as a Decrease in Lead (Pb) Levels in Green Mussels (Perna viridis) by Siti Nur Muhibbatul Jannah, Eka Farpina, Ganea Qorry Aina

    Published 2024-12-01
    “…The sample is prepared by drying the sample in the oven and extracting the sample using wet destruction so that a clear liquid is obtained that can be measured using an atomic absorption spectrophotometer. The results showed that the average lead levels sample soaked by apple cider vinegar with mothers were 0.219 mg/L, 0.103 mg/L, 0.088 mg/L, without mothers were 0.205 mg/L, 0.173 mg/L, 0.125 mg/L. …”
    Get full text
    Article
  6. 1646
  7. 1647

    Evaluating the Nutritional and Safety Aspects of Pyracantha coccinea: Antioxidant Activity, Mineral, and Heavy Metal Content by Gül Görmez

    Published 2025-01-01
    “…Inductively Coupled Plasma Optical Emission Spectrometry (ICP-OES), Atomic Absorption Spectroscopy (AAS), and Gerthard Dumatherm techniques were used to determine the mineral and nutrient composition of the plant. …”
    Get full text
    Article
  8. 1648

    Insight into unusual complex thermodynamical behaviour of citric acid and ethanolamine solution by Reshma Karunakaran, Rajagopal Shanmugasundaram

    Published 2025-01-01
    “…Its respective inter and intramolecular ‘hydrogen’ atoms remain the key reason for this effect. Results of rheometry, Raman, proton nuclear magnetic resonance (1HNMR), photoluminescence (PL) spectroscopy, and thermogravimetric analysis (TGA) of this fluid confirmed this phenomena, collectively. …”
    Get full text
    Article
  9. 1649
  10. 1650

    Ab Initio Molecular Dynamics Simulations and Vibrational Frequency Calculations of Species in Liquid-Liquid Phase Separated MgSO4 Solution at 543 K by Mengzi Zhou, Xiancai Lu, Xiandong Liu, Yingchun Zhang, Xiaoyu Zhang, Kai Wang

    Published 2024-01-01
    “…Furthermore, bidentate Mg-SO4 ligand is less stable than monodentate ligands at 543 K by applying free energy calculations. Our findings give atomic level recognition of concentrated phase in liquid-liquid phase separated MgSO4 fluids and theoretical explanation of the 980 cm-1 Raman peak shifting, which will further inspire understandings on nucleation processes of hydrated sulfate minerals and Raman spectra resolving of other sulfate systems.…”
    Get full text
    Article
  11. 1651

    Promotion Effect of CaO Modification on Mesoporous Al2O3-Supported Ni Catalysts for CO2 Methanation by Wen Yang, Yanyan Feng, Wei Chu

    Published 2016-01-01
    “…CO2-TPD and H2-TPD results suggested that CaO can change the environment surrounding of CO2 and H2 adsorption and thus the reactants on the Ni atoms can be activated more easily. The modified Ni/Al2O3 showed better catalytic activity than pure Ni/Al2O3. …”
    Get full text
    Article
  12. 1652

    Quaternion modeling of the helical path for analysis of the shape of the DNA molecule by A. F. Muterko

    Published 2018-01-01
    “…Alternatively, desired base pair parameters can be computed based on publicly available information about atomic DNA structures. Further, taking the base pairs as rigid bodies, their relative location in space can be estimated based on these parameters. …”
    Get full text
    Article
  13. 1653

    Gaussian mixtures closest to a given measure via optimal transport by Lasserre, Jean B.

    Published 2024-11-01
    “…Moreover if the mixing measure is atomic with finite support, its components can sometimes be extracted from an optimal solution at some semidefinite relaxation of the hierarchy when Curto & Fialkow’s flatness condition holds for some moment matrix.…”
    Get full text
    Article
  14. 1654

    Evolution of Residual Stress, Crystal Orientation, and Texture on Preheating Weld Treatment of Low Carbon Steel ASTM A572 Grade 42 by Suratno Adi Saputro, Andoko Andoko, Poppy Puspitasari

    Published 2024-02-01
    “…The texture was influenced by plastic deformation due to atomic structure and its dislocation.…”
    Get full text
    Article
  15. 1655

    High-Electron-Mobility SiGe on Sapphire Substrate for Fast Chipsets by Hyun Jung Kim, Yeonjoon Park, Hyung Bin Bae, Sang H. Choi

    Published 2015-01-01
    “…NASA Langley has successfully grown highly ordered single crystal rhombohedral epitaxy using an atomic alignment of the [111] direction of cubic SiGe on top of the [0001] direction of the sapphire basal plane. …”
    Get full text
    Article
  16. 1656

    Evaluating the Effect of Active Charcoal-Containing Toothpaste on Color Change, Microhardness, and Surface Roughness of Tooth Enamel and Resin Composite Restorative Materials by Ali Forouzanfar, Pouria Hasanpour, Yasaman Yazdandoust, Hosein Bagheri, Hamideh Sadat Mohammadipour

    Published 2023-01-01
    “…Two samples of each group were prepared for surface roughness assessment via atomic force microscope. Data were analyzed by Shapiro–Wilk, Independent sample t-test and Mann–Whitney U tests. …”
    Get full text
    Article
  17. 1657

    Effects of Vacancy Cluster Defects on Electrical and Thermodynamic Properties of Silicon Crystals by Pei-Hsing Huang, Chi-Ming Lu

    Published 2014-01-01
    “…The results can be ascribed to the formation of a defect level produced by the dangling bonds, floating bonds, or high-strain atoms surrounding the VC defects. The appearance of imaginary frequencies in the phonon spectrum of defective Si crystals indicates that the defect-region structure is dynamically unstable and demonstrates phase changes. …”
    Get full text
    Article
  18. 1658
  19. 1659

    Syntheses, Spectral Characterization, and Antimicrobial Studies on the Coordination Compounds of Metal Ions with Schiff Base Containing Both Aliphatic and Aromatic Hydrazide Moieti... by Dinesh Kumar, Silky Chadda, Jyoti Sharma, Parveen Surain

    Published 2013-01-01
    “…They are active against gram-positive bacteria (S. aureus, B. subtilis), gram-negative bacteria (E. coli, P. aeruginosa), and yeast (S. cerevisiae, C. albicans). 1 acts as a dibasic tridentate ONO donor ligand in 2–7 coordinating through its both enolic O and azomethine N atoms. The coordination compounds 2 and 3 are paramagnetic, while rest of the compounds are diamagnetic. …”
    Get full text
    Article
  20. 1660

    Natural enrichment of chromium and nickel in the soil surrounds the karst watershed by R.D.P. Astuti, A. Mallongi, A.U. Rauf

    Published 2021-07-01
    “…METHODS: The total concentrations of chromium and nickel were determined using the Flame Atomic Absorption Spectrophotometer. This study used contamination factor, geo-accumulation index, and pollution load index to evaluate soil enrichment status. …”
    Get full text
    Article