Showing 221 - 240 results of 1,928 for search '"atom"', query time: 0.06s Refine Results
  1. 221

    Suppressing Jahn-Teller distortion of MnO2 via B-Ni dual single-atoms integration for methane catalytic combustion by Huayu Gu, Fanyu Wang, Sai Chen, Jintong Lan, Jun Wang, Chunlei Pei, Xiao Liu, Jinlong Gong

    Published 2025-01-01
    “…Comprehensive analysis discovers that B atoms weaken the interaction between O and Mn atoms by forming bonds with lattice oxygen atoms. …”
    Get full text
    Article
  2. 222
  3. 223

    Ultrasound-Assisted Extraction of Micro- and Macroelements in Fruit Peel Powder Mineral Supplement for Osteoporosis Patients and Their Determination by Flame Atomic Absorption Spectrometry by Muhammad Saleem, Arjumand Iqbal Durani, Rima D. Alharthy, Mahmood Ahmed, Muhammad Imtiaz Shafiq, Abdul Hameed, Syed Mubasher Hussain, Waqas Bashir

    Published 2021-01-01
    “…The aim of this recent research was to quantify the micro- (Mn, Fe, Cu, and Zn) and macroelements (Mg, K, and Ca) in the peel powder of some common fruits (pomegranate, orange, lemon, mango, and grapefruit) by flame atomic absorption spectrometer (FAAS). The extraction of micro- and macroelements in peel powder was done by using dilute acids in an ultrasonic bath. …”
    Get full text
    Article
  4. 224

    Synthesis of Well-Defined Three-Arm Star-Branched Polystyrene through Arm-First Coupling Approach by Atom Transfer Radical Polymerization by Syed Shahabuddin, Fatem Hamime Ismail, Sharifah Mohamad, Norazilawati Muhamad Sarih

    Published 2015-01-01
    “…Here we describe a simple route to synthesize three-arm star-branched polystyrene. Atom transfer radical polymerization technique has been utilized to yield branched polystyrene involving Williamson coupling strategy. …”
    Get full text
    Article
  5. 225
  6. 226

    Analisis Kandungan Timbal Pada Gorengan yang Dijual Sekitar Pasar Ulakan Tapakis Padang Pariaman Secara Spektrofotometri Serapan Atom by Angga Putra Perdana, Elmatris Sy, Eti Yerizel

    Published 2018-02-01
    “…Instrumen yang digunakan dalam penelitian ini adalah test kit timbal dan spektrofotmetri serapan atom. Hasil penelitian menunjukan bahwa dari 21 sampel uji didapatkan semua sampel (100%) mengandung timbal namun masih berada dibawah ambang batas yang telah ditetapkan oleh Kepala BPOM RI Nomor HK.00.06.1.52.4011 tahun 2009. …”
    Get full text
    Article
  7. 227
  8. 228
  9. 229

    First-principles investigation of local atomic environment and its impact on properties in non-equiatomic CoCrFeNi high-entropy alloys by Qingxu Tian, Fuhui Chen, Peter K. Liaw, Yang Tong, Shuying Chen, Fanchao Meng

    Published 2025-01-01
    “…The results reveal a strong correlation between the total energy and atomic percentage of Cr + Fe atomic pairs, with higher concentrations of Cr + Fe resulting in lower total energies, which relates closely to their tendency to form the SRO. …”
    Get full text
    Article
  10. 230

    Ultratrace Determination of Cr(VI) and Pb(II) by Microsample Injection System Flame Atomic Spectroscopy in Drinking Water and Treated and Untreated Industrial Effluents by Jameel Ahmed Baig, Tasneem Gul Kazi, Latif Elci, Hassan Imran Afridi, Muhammad Irfan Khan, Hafiz Muhammad Naseer

    Published 2013-01-01
    “…Simple and robust analytical procedures were developed for hexavalent chromium (Cr(VI)) and lead (Pb(II)) by dispersive liquid-liquid microextraction (DLLME) using microsample injection system coupled with flame atomic absorption spectrophotometry (MIS-FAAS). For the current study, ammonium pyrrolidine dithiocarbamate (APDC), carbon tetrachloride, and ethanol were used as chelating agent, extraction solvent, and disperser solvent, respectively. …”
    Get full text
    Article
  11. 231

    A Treatment of the Absorption Spectrum for a Multiphoton 𝑉-Type Three-Level Atom Interacting with a Squeezed Coherent Field in the Presence of Nonlinearities by F. K. Faramawy

    Published 2011-01-01
    “…We study the interaction of a three-level atom with a single mode field through multiphoton transition in a cavity, taking explicitly into account the existence of forms of nonlinearities of both the field and the intensity-dependent atom-field coupling. …”
    Get full text
    Article
  12. 232

    Controlled Crystallinity of TiO2 Layers Grown by Atmospheric Pressure Spatial Atomic Layer Deposition and their Impact on Perovskite Solar Cell Efficiency by Eugen Zimmermann, Ka Kan Wong, Tobias Seewald, Julian Kalb, Jonathan Linke, Giso Hahn, Lukas Schmidt-Mende

    Published 2022-01-01
    “…Atmospheric Pressure Spatial Atomic Layer Deposition (AP-SALD) is an upcoming deposition technique suitable for a variety of materials and combines the benefits of a regular atomic layer deposition with a significantly increased deposition rate at ambient conditions. …”
    Get full text
    Article
  13. 233

    Modeling the thermal performance of hybrid paraffin-air nanostructure in a heat sink: Effect of atomic ratio of Al2O3 nanoparticles by Wed khalid Ghanim, Rassol Hamed Rasheed, Ahmed Shawqi Sadeq, Mohammad N. Fares, Soheil Salahshour, Rozbeh Sabetvand

    Published 2025-06-01
    “…The results demonstrate that after reaching equilibrium within 20 ns, the total energy of the atomic sample converges to −5990.70 eV, indicating stable atomic oscillations. …”
    Get full text
    Article
  14. 234
  15. 235

    Determination of Ca, P, K, Na, and Mg in Australian Retail Pasteurised Milk Using Inductively Coupled Plasma Atomic Emission Spectroscopy (ICP OES) by Duc Doan Nguyen, Vicky Solah, Suzanne Daubney, Saijel Jani

    Published 2024-01-01
    “…A rapid and simple inductively coupled plasma atomic emission spectrometry (ICP OES) method was developed and validated for the determination of macroelements including calcium (Ca), phosphorus (P), potassium (K), sodium (Na), and magnesium (Mg) in Australian retail pasteurised milk. …”
    Get full text
    Article
  16. 236

    Atomic-scale understanding of the effects of Cr and Ti on γ′ growth kinetics in the Ni–Al-X ternary system: Diffusion couple technique and DFT study by Xinyu Gao, Yuan Tian, Xin Wen, Shichang Qiao, Fengzhen Wang, Na Li, Zhikang Xia, Yongqianag Wang, Shuai Liu, Chao Yuan

    Published 2025-03-01
    “…This study investigates the temporal evolution of γ′ phase in Ni–Al-X (X = Cr, Ti) system, utilizing diffusion-couple alongside aberration-corrected transmission electron microscopy to unveil atomic-scale effects. Experimental results demonstrate that Cr and Ti accelerate γ′ phase formation due to competition between lattice misfit and interdiffusion. …”
    Get full text
    Article
  17. 237

    Solid Phase Extraction of Inorganic Mercury Using 5-Phenylazo-8-hydroxyquinoline and Determination by Cold Vapor Atomic Fluorescence Spectroscopy in Natural Water Samples by Mirna Daye, Baghdad Ouddane, Jalal Halwani, Mariam Hamzeh

    Published 2013-01-01
    “…The developed method showed quantitative recoveries of Hg(II) with LOD = 0.21 pg mL−1 and RSD = 3–6% using cold vapor atomic fluorescence spectroscopy (CV-AFS) with a preconcentration factor greater than 250.…”
    Get full text
    Article
  18. 238
  19. 239

    Ultrasound-Assisted Emulsification Microextraction Based on Solidification Floating Organic Drop Trace Amounts of Manganese Prior to Graphite Furnace Atomic Absorption Spectrometry Determination by Alireza Mohadesi, Masoumeh Falahnejad

    Published 2012-01-01
    “…Finally the sample was injected into a graphite furnace atomic absorption spectrometry. Under the optimum condition the linear dynamic range was 0.50–10.0 ng mL−1 with a correlation coefficient of 0.9926, and the detection limit of 0.3 ng mL−1 was obtained. …”
    Get full text
    Article
  20. 240