Results 51 to 60 of about 36,624 (293)

The number of lines tangent to arbitrary convex polyhedra in 3D [PDF]

open access: yesProceedings of the twentieth annual symposium on Computational geometry, 2004
We prove that the lines tangent to four possibly intersecting polytopes in $R3$ with $n$ edges in total form $\Theta(n^2)$ connected components. In the generic case, each connected component is a single line, but our result still holds for arbitrary degenerate scenes. This improves the previously known $O(n^3\log n)$ bound by Agarwal~\cite{A94}.
Brönnimann, Hervé   +8 more
openaire   +2 more sources

Tangent line using many different limit configurations

open access: yes, 2011
Calculus, Analytic GeometryThe tangent line to the graph of y=f(x) at (x0,f(x0)) is the limiting position of the secant lines through the two points (x0+ah,f(xo+ah)) and (x0-bh,f(x0-bh)) as h tends to 0, for any constants a,b>0Componente Curricular ...
Martínez, Soledad, Rosa, Felix
core   +1 more source

Energetic Offset in Organic Solar Cells‐ Importance, Confusion and Outlook

open access: yesAdvanced Materials, EarlyView.
Energetic offsets in organic solar cells (OSCs) remain a subject of debate due to measurement‐ and lab‐dependent discrepancies. This Perspective clarifies the physical origins of these variations and identifies temperature‐dependent electro‐optical methods as a reliable approach to obtain consistent offset values.
Nakul Jain   +5 more
wiley   +1 more source

Splitting the tangent bundle

open access: yes, 1974
We determine those unoriented cobordism classes which can be realized by a manifold whose tangent bundle splits into a sum of real (complex) line bundles.
Wolf Iberkleid
core   +2 more sources

Stable Protein‐Based G‐Quadruplex‐Derived Supramolecular Bioinks as Tunable ECM‐Mimetic Constructs Assembled by Combining Non‐Covalent and Covalent Strategies

open access: yesAdvanced Materials, EarlyView.
Harnessing the synergistic interplay of supramolecular self‐assembly, under macromolecular crowding conditions, and enzymatic‐mediated covalent crosslinking toward a stable protein‐based G‐quadruplex‐derived supramolecular bioink. This bioinspired strategy enables the biofabrication of complex and tunable ECM‐mimetic constructs, providing a platform ...
Vera Sousa   +6 more
wiley   +1 more source

REGULARITY OF CURVES WITH A CONTINUOUS TANGENT LINE [PDF]

open access: yesJournal of the Australian Mathematical Society, 2009
AbstractThis note contains a proof of the fact that a Jordan curve in ℝ2 with a continuous tangent line at each point admits a regular reparameterization. We extend the result both to more general curves in ℝn and to higher orders of differentiability.
J. M. BURGUÉS, J. CUFÍ
openaire   +1 more source

On the Number of Maximal Free Line Segments Tangent to Arbitrary Three-dimensional Convex Polyhedra [PDF]

open access: yes, 2005
We prove that the lines tangent to four possibly intersecting convex polyhedra in $ ^3$ with $n$ edges in total form $\Theta(n^2)$ connected components in the worst case.
Na, Hyeon-Suk   +8 more
core   +1 more source

新型直廓内齿轮量柱距计算的研究

open access: yesJixie chuandong, 2008
Under a certain condition,the involutes profile replaced by the straight-line profile to internal gear can meet the transmission requirement.The straight-line profile internal gear has a lot of advantages in processing,such as realizing grinding process ...
徐恺, 邓效忠, 魏冰阳, 王恒迪
doaj  

Framed hyperstrip affine space distribution

open access: yesДифференциальная геометрия многообразий фигур
A rigged hyperstrip distribution is a special class of hyperstrips. The study of hyperstrips and their generalizations in spaces with various fun­damental groups is of great interest due to numerous applications in mathematics and physics.
N. A. Eliseeva, Yu. I. Popov
doaj   +1 more source

Miniaturization and Harmonic Suppression of Power Divider using Coupled Line Section for High Power Applications [PDF]

open access: yesRadioengineering, 2020
This paper presents a compact transmission line based on the coupled line section to reduce the circuit size of Gysel power divider (GPD). The line composed of one direct line and one coupled line section.
M. Kumar   +4 more
doaj  

Home - About - Disclaimer - Privacy