Results 91 to 100 of about 23,042,479 (320)

Determination and (re)parametrization of rational developable surfaces [PDF]

open access: yes, 2015
The developable surface is an important surface in computer aided design, geometric modeling and industrial manufactory. It is often given in the standard parametric form, but it can also be in the implicit form which is commonly used in algebraic ...
Pérez Díaz, Sonia   +3 more
core   +1 more source

Methods for Creating Curved Shell Structures From Sheet Materials

open access: yesBuildings, 2012
This paper describes some methods for producing developable surfaces with practical applications for creating useful lightweight, rigid, jig-less and elegant structural forms from sheet materials. Multiple related techniques based on the same fundamental
Bruno Postle
doaj   +1 more source

Cell geometry and membrane protein crowding constrain Escherichia coli growth rate, overflow metabolism, respiration, and maintenance energy

open access: yesFEBS Letters, EarlyView.
The physical dimensions and shape of bacterial cells define the surface area available to acquire nutrients and the volume available for synthesizing proteins and DNA. Here, we use computational systems biology to decode the importance of cell geometry as a major determinant of prokaryotic phenotype, including growth rate and metabolic efficiency. This
Ross P. Carlson   +6 more
wiley   +1 more source

Developable Surface Fitting to Point Clouds Abstract

open access: yes, 2008
Given a set of data points as measurements from a developable surface, the present paper investigates the recognition and reconstruction of these objects.
Martin Peternell
core  

Salmonella lipopolysaccharide‐containing supported lipid bilayers as platforms to study bacteriophage interactions

open access: yesFEBS Letters, EarlyView.
We present robust protocols for the preparation of supported lipid bilayers (SLBs) incorporating either Salmonella smooth LPS or outer membrane vesicles (OMVs). We use a combination of quartz crystal microbalance with dissipation (QCM‐D) and fluorescence microscopy to both characterize the SLBs of various compositions and to probe their interactions ...
Hudson P. Pace   +6 more
wiley   +1 more source

Developable Surfaces: Their History and Application [PDF]

open access: yesNexus Network Journal, 2011
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +1 more source

From mice to humans—divergent strategies for intestinal homeostasis and regeneration

open access: yesFEBS Letters, EarlyView.
Recent advances such as organoid genome editing, xenotransplantation, imaging, and whole‐genome sequencing have enabled direct studies of human intestinal stem cells (ISCs). These studies reveal species‐specific features, including slower ISC proliferation, distinct injury responses, slower somatic mutation accumulation in humans, and an inverse ...
Keiko Ishikawa   +2 more
wiley   +1 more source

Developable Surface Segmentation for CAD Models via Sparse Normal Discontinuity Detection

open access: yesMathematics
Segmenting CAD models into developable surface patches is a fundamental problem in geometric modeling and manufacturing-oriented applications. Existing approaches often rely on discrete Gaussian curvature estimation or Gauss map analysis; however, their ...
Linlin Xu   +4 more
doaj   +1 more source

Inextensible Flows of Curves on Lightlike Surfaces

open access: yesMathematics, 2018
In this paper, we study inextensible flows of a curve on a lightlike surface in Minkowski three-space and give a necessary and sufficient condition for inextensible flows of the curve as a partial differential equation involving the curvatures of the ...
Zühal Küçükarslan Yüzbaşı   +1 more
doaj   +1 more source

On Surface Approximation using Developable Surfaces

open access: yes, 1999
We introduce a method for approximating a given surface by a developable surface. It will be either a G¹ surface consisting of pieces of cones or cylinders of revolution or a G r NURBS developable surface. Our algorithm will also deal properly with the
J. Wallner   +5 more
core  

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