Results 71 to 80 of about 148,947 (238)
Bending Energy Schemes for Discrete‐Spring‐Network Structural Modelling of Red Blood Cells
International Journal for Numerical Methods in Biomedical Engineering, Volume 41, Issue 11, November 2025.This research investigated three bending energy schemes for discrete‐spring‐network structural modelling termed bending energy scheme (BES) A, B and C. Flat and enclosed membrane test cases were presented, and predictions using the schemes were compared.
Osayomwanbor Ehi‐Egharevba +2 more
wiley +1 more source
Spectral slicing X-ray telescope with variable magnification [PDF]
, 1985 A telescope for viewing high frequency radiation (soft X-ray, extreme ultraviolet) is described. This telescope has a long focal length with a selection of magnifications despite a short housing.
Hildner, E., Hoover, R. B.
core +1 more source
Automated form‐finding method of spoke cable net structures using physics‐constrained neural network
Computer-Aided Civil and Infrastructure Engineering, Volume 40, Issue 28, Page 5093-5113, 28 November 2025.Abstract The spoke cable‐net structure is a typical flexible tensile structure that relies solely on cables as load‐bearing components. Its unique topological characteristics, composed of ring cables and radial cables, determine that the main challenge in its form‐finding lies in controlling the spatial configuration of the inner ring.
Xuanzhi Li +3 more
wiley +1 more source
Further results on the hyperbolic Voronoi diagrams [PDF]
, 2014 In Euclidean geometry, it is well-known that the $k$-order Voronoi diagram in $\mathbb{R}^d$ can be computed from the vertical projection of the $k$-level of an arrangement of hyperplanes tangent to a convex potential function in $\mathbb{R}^{d+1}$: the ...
Nielsen, Frank, Nock, Richard
core +1 more source
The design and development of a two-dimensional adaptive truss structure [PDF]
The functional model of a two dimensional adaptive truss structure which can purposefully change its geometrical configuration is introduced. The details of design and fabrication such as kinematic analysis, dynamic characteristics analysis and some test
Kuwao, Fumihiro +4 more
core +1 more source
Parametric splines on a hyperbolic paraboloid
Journal of Computational and Applied Mathematics, 2009 The main object of the paper is to construct space arcs by extending planar affine transformation into space. Thus space splines on a hyperbolic paraboloid over a tetrahedron are constructed. Approximate \(G^2\) continuity is studied here for fitting to a sequence of points [cf. \textit{M. Paluszny} and \textit{R. R. Patterson}, Comput. Aided Geom. Des.
Peng, Fengfu, Han, Xuli
openaire +2 more sources
STUDENTS' APPROACHES ON WARPED SURFACE
Journal of Industrial Design and Engineering Graphics, 2019 The geometric challenges in the architectural design of warped surface come mainly from the physical materialization. This paper presents structural forms based on warped surface and shows the types of structures made during the 20th and 21st century ...
Ana-Maria GRAUR +2 more
doaj +4 more sources
ON APPLICATION OF PARABOLIC SHELLS OF REVOLUTION IN CIVIL ENGINEERING IN 2000-2017
Structural Mechanics of Engineering Constructions and Buildings, 2017 Dome is often used by architects for cover of large spans. Only spherical, conical, elliptical, parabolic, and hyperbolic surfaces of revolution among tens of the well-known surfaces of revolution can be taken for middle surfaces of domes.
S N KRIVOSHAPKO
doaj +1 more source
The Mesosoma of Protanilla (Leptanillinae) and the Groundplan of the Formicidae (Hymenoptera)
Journal of Morphology, Volume 286, Issue 7, July 2025.Phenomic investigation of the mesosoma of Protanilla lini reveals groundplan features of the ants and raises new homology questions for future investigation, both within Formicidae and across Aculeata. Special highlights include refined definition of the pronotum, complex discoveries of the promesothoracic articulation, and a new perspective on and ...
Lazzat Aibekova +6 more
wiley +1 more source
Focusing Mirror with Tunable Eccentricity
, 2013 We present a new kind of varifocal mirror with independently adjustable curvatures in the major directions. For actuation we use two stacked piezo bending actuators with crossed in-plane polarization.
Brunne, Jens +3 more
core +1 more source