• Thumbnail for Structure
    A structure is an arrangement and organization of interrelated elements in a material object or system, or the object or system so organized. Physical...
    23 KB (2,209 words) - 12:49, 19 June 2025
  • In mathematics, a J-structure is an algebraic structure over a field related to a Jordan algebra. The concept was introduced by Springer (1973) to develop...
    10 KB (1,449 words) - 21:36, 6 July 2025
  • Thumbnail for Crystal structure
    crystallography, crystal structure is a description of the ordered arrangement of atoms, ions, or molecules in a crystalline material. Ordered structures occur from...
    46 KB (5,173 words) - 05:44, 7 July 2025
  • Thumbnail for Richat Structure
    The Richat Structure, or Guelb er Richât (Arabic: قلب الريشات, romanized: Qalb ar-Rīšāt, Hassaniyya: [galb er.riːʃaːt] ), often called the Eye of Africa...
    26 KB (2,714 words) - 15:25, 18 July 2025
  • Thumbnail for Perovskite (structure)
    A perovskite is a crystalline material of formula ABX3 with a crystal structure similar to that of the mineral perovskite, this latter consisting of calcium...
    38 KB (3,890 words) - 23:49, 30 June 2025
  • In mathematical physics, the causal structure of a Lorentzian manifold describes the possible causal relationships between points in the manifold. Lorentzian...
    24 KB (3,608 words) - 12:25, 12 July 2025
  • Thumbnail for Data structure
    data structure is a data organization and storage format that is usually chosen for efficient access to data. More precisely, a data structure is a collection...
    17 KB (1,872 words) - 02:21, 14 July 2025
  • Thumbnail for Hyperfine structure
    In atomic physics, hyperfine structure is defined by small shifts in otherwise degenerate electronic energy levels and the resulting splittings in those...
    29 KB (4,511 words) - 20:28, 24 May 2025
  • Thumbnail for Social structure
    In the social sciences, social structure is the aggregate of patterned social arrangements in society that are both emergent from and determinant of the...
    21 KB (2,458 words) - 05:44, 24 June 2025
  • A structure editor, also structured editor or projectional editor, is any document editor that is cognizant of the document's underlying structure. Structure...
    10 KB (1,190 words) - 01:12, 24 February 2025
  • The structure function, like the fragmentation function, is a probability density function in physics. It is somewhat analogous to the structure factor...
    2 KB (244 words) - 18:00, 24 July 2024
  • additional structure on X corresponds to remembering the inclusion j : U → X {\displaystyle j\colon U\to X} , which likens X with this extra structure to a...
    5 KB (772 words) - 17:02, 28 July 2023
  • Thumbnail for Structure constants
    ⋅ e j = c i j {\displaystyle \mathbf {e} _{i}\cdot \mathbf {e} _{j}=\mathbf {c} _{ij}} . The structure constants or structure coefficients c i j k {\displaystyle...
    20 KB (3,713 words) - 10:09, 9 May 2025
  • Quantitative structure–activity relationship models (QSAR models) are regression or classification models used in the chemical and biological sciences...
    47 KB (4,614 words) - 15:50, 18 July 2025
  • Story structure or narrative structure is the recognizable or comprehensible way in which a narrative's different elements are unified, including in a...
    24 KB (3,126 words) - 07:21, 19 June 2025
  • Thumbnail for Observable universe
    1051/0004-6361/201323020. S2CID 24224684. Horvath, I.; Hakkila, J.; Bagoly, Z. (2013). "The largest structure of the Universe, defined by Gamma-Ray Bursts". arXiv:1311...
    66 KB (6,696 words) - 20:09, 19 July 2025
  • Thumbnail for Earth structure
    An earth structure is a building or other structure made largely from soil. Since soil is a widely available material, it has been used in construction...
    60 KB (7,688 words) - 01:45, 13 June 2025
  • Thumbnail for Market structure
    Market structure, in economics, depicts how firms are differentiated and categorised based on the types of goods they sell (homogeneous/heterogeneous)...
    21 KB (2,650 words) - 11:24, 18 July 2025
  • Thumbnail for Chengdu J-20
    that the J-20s were being used in a professional manner and that he was "relatively impressed" with the Chinese command and control structure and AEW&C...
    183 KB (15,510 words) - 15:48, 19 July 2025
  • Thumbnail for Weaubleau structure
    Rovey, C. W., II, Mickus, K. L., Miller, J. F., Plymate, T., and Thomson, K. C. 2003. Weaubleau-Osceola structure, Missouri: deformation, event stratification...
    8 KB (778 words) - 17:02, 2 October 2023
  • Thumbnail for Lewis structure
    Lewis structures – also called Lewis dot formulas, Lewis dot structures, electron dot structures, or Lewis electron dot structures (LEDs) – are diagrams...
    16 KB (2,159 words) - 05:20, 16 May 2025
  • Song structure is the arrangement of a song, and is a part of the songwriting process. It is typically sectional, which uses repeating forms in songs...
    34 KB (4,878 words) - 21:11, 29 March 2025
  • Thumbnail for Skyhook (structure)
    capture-ejector rim is a variation that consists of a rim- or ring-shaped structure. Like a rotating skyhook, it would rotate in a direction opposite to its...
    12 KB (1,467 words) - 09:39, 16 February 2025
  • In geotechnical engineering, soil structure describes the arrangement of the solid parts of the soil and of the pore space located between them. It is...
    47 KB (5,163 words) - 06:52, 29 June 2025
  • Thumbnail for Honeycomb structure
    Honeycomb structures are natural or man-made structures that have the geometry of a honeycomb to allow the minimization of the amount of used material...
    26 KB (3,110 words) - 03:35, 15 July 2025
  • Thumbnail for Structure formation
    In physical cosmology, structure formation describes the creation of galaxies, galaxy clusters, and larger structures via gravitational and hydrodynamic...
    17 KB (2,171 words) - 02:24, 27 June 2025
  • An active structure (also known as a smart or adaptive structure) is a mechanical structure with the ability to alter its configuration, form or properties...
    6 KB (846 words) - 21:29, 17 May 2024
  • An organizational structure defines how activities such as task allocation, coordination, and supervision are directed toward the achievement of organizational...
    48 KB (5,984 words) - 10:41, 18 July 2025
  • Thumbnail for Chemical structure
    A chemical structure of a molecule is a spatial arrangement of its atoms and their chemical bonds. Its determination includes a chemist's specifying the...
    7 KB (837 words) - 00:57, 19 July 2025
  • Thumbnail for J. R. R. Tolkien
    J. R. R. Tolkien at The Encyclopedia of Fantasy J. R. R. Tolkien at the Internet Book List J. R. R. Tolkien at The Encyclopedia of Science Fiction J....
    139 KB (14,080 words) - 23:25, 18 July 2025