Showing 381 - 400 results of 1,928 for search '"atom"', query time: 0.05s Refine Results
  1. 381

    Enhanced Chemical Insights into Fullerene Structures via Modified Polynomials by Ali N. A. Koam, Ali Ahmad, Raed Qahiti, Muhammad Azeem, Waleed Hamali

    Published 2024-01-01
    “…Topological or numerical descriptors are used to associate important physicomolecular restrictions with important molecular structural features such as periodicity, melting and boiling points, and heat content for various 2 and 3D molecular preparation graphs or networking. The degree of an atom in a molecular network or molecular structure is utilized in this study to calculate the degree of atom-based numerics. …”
    Get full text
    Article
  2. 382
  3. 383

    Study of Hardness of Superhard Crystals by Topological Indices by Xiujun Zhang, Muhammad Naeem, Abdul Qudair Baig, Manzoor Ahmad Zahid

    Published 2021-01-01
    “…The aim of this paper is to study the hardness of some superhard BCx crystals by means of topological indices, specifically Randić index and atom-bond connectivity index.…”
    Get full text
    Article
  4. 384

    Investigating the effect of electric field amplitude on the thermal behavior of paraffin/Cu nanostructure in a tube containing non-connected rotating ribs using molecular dynamics... by Ahmed Shawqi Sadeq, Rassol Hamed Rasheed, Shaima Albazzaz, Mohammad N. Fares, Soheil Salahshour, Rozbeh Sabetvand

    Published 2025-06-01
    “…The results indicate that as external electric field amplitudes increased from 0.01 to 0.05 V/m, various parameters of the simulated atomic sample show notable variations. Specifically, maximum density decreased from 0.0848 to 0.0836 atom/ų, while maximum velocity increased from 0.00496 to 0.00519 atom/Å. …”
    Get full text
    Article
  5. 385

    fragSMILES as a chemical string notation for advanced fragment and chirality representation by Fabrizio Mastrolorito, Fulvio Ciriaco, Maria Vittoria Togo, Nicola Gambacorta, Daniela Trisciuzzi, Cosimo Damiano Altomare, Nicola Amoroso, Francesca Grisoni, Orazio Nicolotti

    Published 2025-01-01
    “…However, such ‘atom-level’ string representations could have certain limitations, in terms of capturing information on chirality, and synthetic accessibility of the corresponding designs. …”
    Get full text
    Article
  6. 386

    Enhancing CO<sub>2</sub> Adsorption on MgO: Insights into Dopant Selection and Mechanistic Pathways by Shunnian Wu, W. P. Cathie Lee, Hashan N. Thenuwara, Xu Li, Ping Wu

    Published 2024-12-01
    “…Pristine and C-doped MgO engaged CO<sub>2</sub> through surface O atoms, while Al-, Si-, and Ti-doped MgO predominantly relied on dopant–O atom interactions. …”
    Get full text
    Article
  7. 387

    Metal‐Mediated Chlorine Transfer for Molten Salt‐Driven Thermodynamic Change on Silicon Production by Minjun Je, Jin Chul Kim, Jiyeon Kim, Sungho Kim, Sunmin Ryu, Jaegeon Ryu, Sang Kyu Kwak, Soojin Park

    Published 2025-01-01
    “…Above its melting temperature (Tm ≈ 192 °C), three AlCl3 molecules coordinate with each metal (M) atom (e.g., conventional Al and Mg, or even thermodynamically unfeasible Zn) to form metal‐AlCl3 complexes, M(AlCl3)3. …”
    Get full text
    Article
  8. 388

    Topological Indices of Families of Bistar and Corona Product of Graphs by A. Khalid, N. Kausar, M. Munir, M. Gulistan, M. M. Al-Shamiri, T. Lamoudan

    Published 2022-01-01
    “…In this study, we study certain degree-based topological indices such as Randić index, Zagreb indices, multiplicative Zagreb indices, Narumi–Katayama index, atom-bond connectivity index, augmented Zagreb index, geometric-arithmetic index, harmonic index, and sum-connectivity index for the bistar graphs and the corona product KmoKn′, where Kn′ represents the complement of complete graph Kn.…”
    Get full text
    Article
  9. 389

    SYSTEM OF PRE-UNIVERSITY TRAINING “SCHOOL – MEPHI” by I. V. ТSVETKOV, D. Y. PRAVNIK

    Published 2017-07-01
    “…The paper considers the implementation of the primary and secondary education programs (Pre-Universitary, engineering classes, AtomClasses, distance education in Network school), analyzes the methods of selection and support for students who have shown creativity and interest in engineering.…”
    Get full text
    Article
  10. 390

    Preparation and Antimicrobial Activity of s-Triazine Hydrazones of 7-Hydroxy Coumarin and Their Metal Complexes by G. R. Jani, K. B. Vyas, Zudas Franco

    Published 2009-01-01
    “…The ligand system co-ordinates with the metal ion in a bidentate manner through the nitrogen atom of hydrazone group.…”
    Get full text
    Article
  11. 391

    Development of Removable Hollow Cathode Discharge Apparatus for Sputtering Solid Metals by Daisuke Ishikawa, Shuichi Hasegawa

    Published 2019-01-01
    “…The occurrence of sputtering resulted in the metal atom in gas phase. With Ar buffer gas, the favorable condition of laser absorption spectroscopy for the gas phase sample was investigated.…”
    Get full text
    Article
  12. 392

    Physics for Scientists and Engineers with Modern physics / by Giancoli, Douglas C.

    Published 2008
    Table of Contents: “…Introduction, measurement, estimating -- Mechanics -- Describing motion -- Kinematics in two or three dimensions -- Dynamics -- Using Newton's laws -- Gravitation and Newton's synthesis -- Work and energy -- Conservation of energy -- Linear momentum -- Rotational motion -- Angular momentum -- Static equilibrium -- Fluids, vibrations, waves, sound -- Fluids -- Oscillations -- Wave motion -- Sound -- Kinetic theory and thermodynamics -- Temperature, thermal expansion, and the ideal gas law -- Kinetic theory of gases -- Heat and the first law of thermodynamics -- Second law of thermodynamics -- Electricity and magnetism -- Electric charge and electric field -- Gauss's law -- Electric potential -- Capacitance, dielectrics, electric energy storage -- Electric currents and resistance -- DC circuits -- Magnetism -- Sources of magnetic field -- Electromagnetic induction and faraday's Law -- Inductance, electromagnetic oscillations -- Maxwell's equations and electromagnetic waves -- Light -- Lenses and optical instruments -- The wave nature of light -- Diffraction and polarization -- Modern physics -- Special theory of relativity -- Early quantum theory and models of the atom -- Quantum mechanics -- Quantum mechanics of atoms -- Molecules and solids -- Nuclear physics and radioactivity -- Nuclear energy -- Elementary particles -- Astrophysics and cosmology.…”
    View in OPAC
    Book
  13. 393

    Cardinality-constrained structured data-fitting problems by Fan, Zhenan, Fang, Huang, Friedlander, Michael P.

    Published 2024-05-01
    “…A memory-efficient solution framework is proposed for the cardinality-constrained structured data-fitting problem. Dual-based atom-identification rules reveal the structure of the optimal primal solution from near-optimal dual solutions, which allows for a simple and computationally efficient algorithm that translates any feasible dual solution into a primal solution satisfying the cardinality constraint. …”
    Get full text
    Article
  14. 394

    Fluorescent Thiol-Derivatized Gold Clusters Embedded in Polymers by G. Carotenuto, S. De Nicola, L. Nicolais

    Published 2013-01-01
    “…Differently from the thiolate precursors, such cluster compounds show very intensive visible fluorescence characteristics that can be tuned by alloying the gold clusters with silver atoms or by conjugating the electronic structure of the metallic core with unsaturated electronic structures in the organic ligand through the sulphur atom. …”
    Get full text
    Article
  15. 395

    Study of Vanadium Carbide Structures Based on Ve and Ev-Degree Topological Indices by Abdul Rauf, Saba Maqbool, Muhammad Naeem, Adnan Aslam, Hamideh Aram, Kraidi Anoh Yannick

    Published 2021-01-01
    “…In particular, we have computed the closed forms of Zagreb, Randic, geometric-arithmetic, and atom-bond connectivity (ABC) indices of vanadium carbide structure based on ev and ve degrees. …”
    Get full text
    Article
  16. 396

    Computing Edge Version of Resolvability and Double Resolvability of a Graph by Muhammad Ahmad, Zohaib Zahid, Tabasam Rashid, Juan Luis Garcia Guirao

    Published 2022-01-01
    “…The chemical structure can be depicted using nodes (which represent the atom) and links (which represent the many types of bonds). …”
    Get full text
    Article
  17. 397

    On Reverse Valency Based Topological Characterization of a Chemical Compound by Maria Singaraj Rosary, Samuel Asefa Fufa

    Published 2022-01-01
    “…In this paper, we give explicit expression of the reverse general Randic index, the reverse atom bond connectivity index, the reverse geometric arithmetic index, the reverse forgotten index, the reverse Balaban index, the reverse augmented index, and different types of reverse Zagreb indices of the metal-organic framework M1TPyP-M2 (TPyP = 5, 10, 15, 20-tetrakis (4-pyridyl) porphyrin and M1, M2 = Fe and Co). …”
    Get full text
    Article
  18. 398

    Study of Nonlinear Deformation of FCC-AuCuSi under Pressure by the Statistical Moment Method by Nguyen Quang Hoc, Bui Duc Tinh, Nguyen Duc Hien, Gelu Coman

    Published 2021-01-01
    “…In this work, we build the model and derive the theory of nonlinear deformation for substitutional alloy AB with interstitial atom C and face-centered cubic structure under pressure from the statistical moment method. …”
    Get full text
    Article
  19. 399

    Closed-channel parameters of Feshbach resonances by Pascal Naidon

    Published 2025-01-01
    “…A photoassociation experiment is proposed to measure this parameter in ultracold atom systems.…”
    Get full text
    Article
  20. 400

    Study of Ge-Sb-Te Superlattice Structure Based on Topological Descriptors by Xiujun Zhang, Muhammad Naeem, Abdul Rauf, Adnan Aslam, Zafar Iqbal, Abudulai Issa

    Published 2022-01-01
    “…We have calculated the Zagreb, geometric-arithmetic, Randic, and atom-bond connectivity indices of the Ge-Sb-Te superlattice structure using the ev- and ve-degrees. …”
    Get full text
    Article