Showing 2,201 - 2,220 results of 2,509 for search '"atomism"', query time: 0.05s Refine Results
  1. 2201
  2. 2202

    Metals contamination of Aquifer in Warri and Port- Harcourt (Niger – Delta Region) by Monday O. Edwards

    Published 2024-12-01
    “…The metal cations were also determined using Atomic Absorption Spectrophotometer (AAS) method, hardness, chloride and bicarbonate concentrations were determined using titrimetric method, sulphate was determined by spectrophotometer method. …”
    Get full text
    Article
  3. 2203

    Jamblang (Syzygium cumini) leaf extract decreased hydrogen peroxide in lead acetate-induced rats by Rauza Sukma Rita, Elmatris Sy, Endrinaldi

    Published 2022-12-01
    “… Background: Free radicals are atoms or molecules with one or more unpaired electrons. …”
    Get full text
    Article
  4. 2204

    Machine Learning Approach and Model for Predicting Proton Stopping Power Ratio and Other Parameters Using Computed Tomography Images by Charles Ekene Chika

    Published 2024-12-01
    “…Purpose: The purpose of this study was to accurately estimate proton stopping power ratio (SPR), relative electron density ρe, effective atomic number (Zeff), and mean excitation energy (I) using one simple robust model and design a machine learning algorithm that will lead to automation. …”
    Get full text
    Article
  5. 2205

    Fretting behavior of piston ring-cylinder liner components of a diesel engine running on TiO2 nanolubricant by Ali Can Yılmaz

    Published 2022-12-01
    “…Scanning electron microscopy analysis was conducted to observe morphology of the nanoparticle and to analyze the surface structure of the samples before and after the abrasion tests. Atomic force microscopy analysis was done to obtain the 3D images of the worn surfaces and to make a comprehensive comparison of tribological performance between engine lubricant and nanolubricant. …”
    Get full text
    Article
  6. 2206

    The Effects of Storage on Sachet Water Quality in Ogun State, Nigeria by ZO Ajekunle, VO Ojekunle, AO Eruola, FF Oyebanji, KA Olatunde, BT Amujo, OR Sangowusi, AA Adekttan, AG Taiwo

    Published 2015-07-01
    “…Cationic and anionic constituents were determined by standard titrimetric and spectrophotometric methods, trace and heavy water were determined by Atomic Adsorption Spectrophotometer. The study revealed that all the brands of water analyzed were physically and chemically wholesome and met the WHO standards. …”
    Get full text
    Article
  7. 2207

    Experimental study of different oxides in B2O3–ZnO–BaO glass system for gamma-ray shielding by Mohamed Elsafi, M. I. Sayyed, Taha A. Hanafy

    Published 2025-01-01
    “…Sample BZBCu has a LAC value of 16.203 1/cm, which is also the highest LAC value among all the studied glasses, this is as a result of the high density of this glass and due to the high atomic number of Cu. The glasses’ transmission factor (TF) at 1 cm thickness against energy was determined. …”
    Get full text
    Article
  8. 2208

    Effect of p-InGaN Cap Layer on Low-Resistance Contact to p-GaN: Carrier Transport Mechanism and Barrier Height Characteristics by Mohit Kumar, Laurent Xu, Timothée Labau, Jérôme Biscarrat, Simona Torrengo, Matthew Charles, Christophe Lecouvey, Aurélien Olivier, Joelle Zgheib, René Escoffier, Julien Buckley

    Published 2025-01-01
    “…A comparative analysis with highly doped p-InGaN revealed the key mechanisms contributing to low-resistance contacts. Atomic force microscopy inspections showed that the surface roughness depends on the doping levels and cap layer thickness, with higher doping improving the surface quality. …”
    Get full text
    Article
  9. 2209

    Thermomechanically induced phase separation at elevated temperatures in a CoCr0.4NiSi0.3 medium-entropy alloy by Li Zhang, Lijia Chen, Weiqiang Zhang, Hui Zhao, Feng Li

    Published 2025-01-01
    “…The directional vacancy diffusion of solute atoms along specific crystal planes of dynamically recrystallized (DRXed) grains leads to phase separation at elevated temperatures. …”
    Get full text
    Article
  10. 2210

    High-entropy assisted capacitive energy storage in relaxor ferroelectrics by chemical short-range order by Tongxin Wei, Jinzhu Zou, Xuefan Zhou, Miao Song, Yan Zhang, Cewen Nan, Yuanhua Lin, Dou Zhang

    Published 2025-01-01
    “…We design a chemical short-range order strategy to modulate polarization response under external electric field and achieve substantial enhancements of energy storage properties, i.e. an ultrahigh energy density of ~16.4 J/cm3 with markedly improved efficiency ~90% at an electric field of 85 kV/mm in Nb doped (Bi0.2Na0.2K0.2La0.2Sr0.2) TiO3 system. Atomic-scale scanning transmission electron microscopy observations show that Nb exhibits a chemical short-range order structure, with Nb enriched regions displaying ultrasmall polar nanoregions and more flexible polarization configurations, which is conducive to achieving high maximum polarization and low residual polarization. …”
    Get full text
    Article
  11. 2211

    Boosting singlet oxygen generation for salinity wastewater treatment through co-activation of oxygen and peroxymonosulfate in photoelectrochemical process by Qianqian Yang, Zhiyuan Feng, Yanbo Zhou, Hongying Zhao, Guohua Zhao

    Published 2025-01-01
    “…Here, we report a unique strategy for boosting singlet oxygen (1O2) generation via coactivation of oxygen and peroxymonosulfate (PMS) by regulating the electron transfer regime in the photoelectrochemical process. The Fe-N bridge in atomic Fe-modified graphitic carbon nitride (denoted SA-FeCN) favors the construction of electron-defective Fe and electron-rich N vacancies (Nvs) to accelerate directional electron transfer. …”
    Get full text
    Article
  12. 2212

    Bromine‐Substituted Cation Anchoring to Suppress Ion Migration in Alternating Cations Intercalation‐Type Perovskite for Stable X‐Ray Detection by Lijun Xu, Qianwen Guan, Huang Ye, Jianbo Wu, Hang Li, Yaru Geng, Chengshu Zhang, Zeng‐Kui Zhu, Zhangtong Han, Qiuxiao Yin, Junhua Luo

    Published 2025-02-01
    “…Specifically, introducing Br atom forms additional intermolecular interactions (i.e., Br···π) and enhances hydrogen bonding interactions, greatly improving the structure stability. …”
    Get full text
    Article
  13. 2213

    Trace elements in children with pre-dialysis and end-stage renal disease by Alsalam Asmaa Abd, Ali Ruaa H., Hussain Haider K., Mahdi Montadher Ali

    Published 2024-01-01
    “…Blood samples were obtained and tested for Fe, Zn and Cu levels utilising flame-atomic absorption spectrophotometry (FAAS). Anthropometric data, such as age, body mass index (BMI) and blood pressure, were also collected. …”
    Get full text
    Article
  14. 2214

    Robust highly conductive patterns in flexible PEEK materials with either sp3 or sp2 dominant carbon phases produced by using ultrashort laser pulses by Ayesha Sharif, Nazar Farid, Yuhan Liu, Mingqing Wang, Robert G. Palgrave, Gerard M O'Connor

    Published 2025-03-01
    “…The rationale for the first pass was to disrupt carbon atoms, the second and third exposures were to gently modify this disrupted phase, and the fourth pass was to anneal the final structure. …”
    Get full text
    Article
  15. 2215

    Tadpole-Shaped POSS-Based Copolymers and the Aggregation Behavior at Air/Water Interface by Lin Zhu, Fang Chen, Xiaoyan Ma, Xiu Qiang, Zhiguang Li, Chen Dong, Duyang Zang

    Published 2018-01-01
    “…The morphology of the deposited LB thin film was illustrated by atomic force microscopy (AFM) and X-ray photoelectron spectroscopy (XPS). …”
    Get full text
    Article
  16. 2216
  17. 2217

    Engineered Porous Carbon for High Volumetric Methane Storage by J. Romanos, S. Sweany, T. Rash, L. Firlej, B. Kuchta, J.C. Idrobo, P. Pfeifer

    Published 2014-08-01
    “…Aberration-corrected scanning transmission electron microscopy data show the atomic structure of high-surface-area activated carbon (2600 m 2 /g). …”
    Get full text
    Article
  18. 2218

    Structural Variety in Transition Metal Complexes of Tripodal Ligands Containing Mixed Quinolyl and Pyridyl Donors by Bronte Carr, Timothy D. Christopher, Tilo Söhnel, Lawrence R. Gahan, Cassandra L. Fleming, Allan G. Blackman

    Published 2025-01-01
    “…Abstract The syntheses of the tripodal tetraamine ligands 2‐(pyridin‐2‐yl)‐N,N‐bis(quinolin‐2‐ylmethyl)ethan‐1‐amine (DQPEA), N‐(pyridin‐2‐ylmethyl)‐2‐(quinolin‐2‐yl)‐N‐(2‐(quinolin‐2‐yl)ethyl)ethan‐1‐amine (DQEPMA), 2‐(pyridin‐2‐yl)‐N,N‐bis(2‐(quinolin‐2‐yl)ethyl)ethan‐1‐amine (DQEPEA), N,N‐bis(pyridin‐2‐ylmethyl)‐2‐(quinolin‐2‐yl)ethan‐1‐amine (QEDPMA), and 2‐(pyridin‐2‐yl)‐N‐(2‐(pyridin‐2‐yl)ethyl)‐N‐(2‐(quinolin‐2‐yl)ethyl)ethan‐1‐amine (QEDPEA) containing mixed quinolyl and pyridyl moieties are reported, with 2‐vinylquinoline being used to attach quinolylethyl arms to the aliphatic N atom. X‐ray crystal structures of [(Mn(DQPEA))2O2](ClO4)2 ⋅ (CH3CN)2, [Cu(DQPEA)NCCH3](ClO4)2, [Zn(DQPEA)NCCH3](ClO4)2, [Pd(DQEPEA)Cl]Cl ⋅ 11H2O are detailed, with four, five, and six‐coordination observed. …”
    Get full text
    Article
  19. 2219

    Amphotericin B Encapsulation in Polymeric Nanoparticles: Toxicity Insights via Cells and Zebrafish Embryo Testing by Magno Maciel-Magalhães, Renata Jurema Medeiros, Nayara Cecília do Couto Guedes, Thais Morais de Brito, Gabriele Fátima de Souza, Beatriz Rodrigues Canabarro, Fausto Klabund Ferraris, Fábio Coelho Amendoeira, Helvécio Vinicius Antunes Rocha, Beatriz Ferreira de Carvalho Patricio, Isabella Fernandes Delgado

    Published 2025-01-01
    “…<b>Methods:</b> In this study, we produced and characterized AmB loaded and non-loaded PNPs by nanoprecipitation, dynamic light scattering, transmission electron microscopy, atomic force microscopy and spectroscopy. Afterwards, we verified their toxicity through in vitro MTT assays in three cell lines (HEK293, HepG2, and J774 A1) and in vivo tests with zebrafish embryos. …”
    Get full text
    Article
  20. 2220

    Coherent Control of Single Molecules via Phase-Shaped Two-Photon Excitation at Room Temperature by Xin-peng Xu, Tobias M. Herkenrath, Ullrich Scherf, Richard Hildner

    Published 2025-01-01
    “…Coherent control has been achieved in atoms and small molecules in gas phase during the past few decades. …”
    Get full text
    Article