Results 21 to 30 of about 7,919 (306)

Geometry, Formalism and Intuition: David Hilbert and the formal Axiomatic Method (1891-1905)

open access: yesRevista de Filosofia, 2014
The paper presents and analyzes a set of unpublished notes for lecture courses on geometry, which David Hilbert gave between 1891 and 1905. it will be argued that in these lecture courses the author elaborates the conception of geometry which underlies ...
Eduardo N. Giovannini
doaj   +1 more source

Effect of Foundation Geometry and Structural Properties of Buildings on Railway-Induced Vibration: An Experimental Modeling

open access: yesBuildings, 2022
This paper considers the impact of foundation geometry on the vibrations transferred to a building in the vicinity of a railway line from the aspect of choosing an appropriate foundation type.
Mehrad Mousavi-Rahimi   +2 more
doaj   +1 more source

The emergence, development and current state “graphics and geometry” education

open access: yesВысшее образование в России, 2022
At present, due to total computerization, there can be observed the belittling of the theoretical foundations of descriptive geometry as a science, and therefore as an academicdiscipline. The article explains the necessity to save descriptive geometry in
Natalia V. Kaygorodtseva
doaj  

Análisis, diseño y simulación multifísica de una antena Fotoconductora Terahertz usando el método de elementos finitos

open access: yesIngeniería, 2020
Context: The study of nanotechnology has shown great advances, which include research and exploration of the TeraHertz (THz) region, where one of the most common approaches is the use of photoconductive antennas (PCA) due to the intrinsic properties of ...
Diana Gonzalez Galindo   +4 more
doaj   +1 more source

The projective hinge: phylogeny and ontogeny for a new descriptive geometry

open access: yesDisegnare con, 2012
The architect- draughtsman uses a theoretical–graphic code whose foundations - of obvious Platonic lineage - attempt to organize and make sense to the reality.
Agostino De Rosa
doaj   +1 more source

Bearing Capacity of Shallow Foundations on Cohesionless Soils: A Random Forest Based Approach [PDF]

open access: yesCivil Engineering Infrastructures Journal, 2017
Determining the ultimate bearing capacity (UBC) is vital for design of shallow foundations. Recently, soft computing methods (i.e. artificial neural networks and support vector machines) have been used for this purpose.
Vahid Reza Kohestani   +3 more
doaj   +1 more source

Les originations de la géométrie. Les problèmes posés par le singulier dans le titre de Husserl

open access: yesPhilosophia Scientiæ
The programme of geometrical archaeology initiated by the last Husserlian texts merits being taken further with renewed emphasis on historical discontinuities. The revolutions that geometry has gone through have led to profound changes in meaning.
Julien Bernard
doaj   +1 more source

On the Multiple Steady Flow States in Spindle Shaped Geometry of Bridge Foundations [PDF]

open access: yesJournal of Applied Fluid Mechanics
Flow hysteresis in a channel with a supercritical flow in the vicinity of a spindle-shaped bridge foundation (SSBF) with a change in flow rate has been investigated in a laboratory for the first time.
E. Aminvash   +4 more
doaj   +1 more source

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

open access: yesFEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

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