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In addition to the surface layer, the planetary boundary layer also comprises the PBL core (between 0.1 and 0.7 of the PBL depth) and the PBL top or entrainment layer or capping inversion layer (between 0.7 and 1 of the PBL depth). Four main external factors determine the PBL depth and its mean vertical structure:
K-theory (eddy diffusivity/viscosity theory) is a form of local closure, and is the main first order closure scheme within the surface layer. K-theory follows a similar concept as molecular viscosity, in that the turbulent flux of a quantity is proportional to its spatial gradient, with K as the eddy viscosity/diffusivity.
An onion model used in social penetration theory. The onion model is a graph-based diagram and conceptual model for describing relationships among levels of a hierarchy, evoking a metaphor of the layered "shells" exposed when an onion (or other concentric assembly of spheroidal objects) is bisected by a plane that intersects the center or the innermost shell.
Developed in the 1920s, Le Corbusier's 'Five Points of Modern Architecture' (French: Cinq points de l'architecture moderne) are a set of architectural ideologies and classifications that are rationalized across five core components: [3] Pilotis – a grid of slim reinforced concrete pylons that assume the structural weight of a building. They ...
Architectural theory is the act of thinking, discussing, and writing about architecture. Architectural theory is taught in all architecture schools and is practiced by the world's leading architects. Some forms that architecture theory takes are the lecture or dialogue, the treatise or book, and the paper project or competition entry ...
Each layer of architecture in the model has a specific intention: [25] Business Architecture level: This level can picture the total or a subunit of any corporation, which are in contact with external organizations. Information architecture level: This level specifies types of content, presentation forms, and format of the information required.
A Pattern Language: Towns, Buildings, Construction is a 1977 book on architecture, urban design, and community livability.It was authored by Christopher Alexander, Sara Ishikawa and Murray Silverstein of the Center for Environmental Structure of Berkeley, California, with writing credits also to Max Jacobson, Ingrid Fiksdahl-King and Shlomo Angel.
Shearing layers is a concept coined by architect Frank Duffy, which was later elaborated by Stewart Brand in his book, How Buildings Learn: What Happens After They're Built (Brand, 1994), and refers to buildings as composed of several layers of change. The concept has been adopted by a number of technology vendors to also describe the different ...