Results 1 to 10 of about 2,136 (139)

The Cohomological Genus and Symplectic Genus for 4-Manifolds of Rational or Ruled Types

Mathematics, 2021
An important problem in low dimensional topology is to understand the properties of embedded or immersed surfaces in 4-dimensional manifolds. In this article, we estimate the lower genus bound of closed, connected, smoothly embedded, oriented surfaces in
Bo Dai, Chung-I Ho
doaj   +4 more sources

Developable Ruled Surfaces Generated by the Curvature Axis of a Curve

Axioms, 2023
Ruled surfaces play an important role in various types of design, architecture, manufacturing, art, and sculpture. They can be created in a variety of ways, which is a topic that has been the subject of a lot of discussion in mathematics and engineering ...
Ferhat Taş, Rushan Ziatdinov
doaj   +2 more sources

DESIGNING OF DEVELOPED SURFACES OF COMPLEX PARTS

Nauka ta progres transportu, 2017
Purpose. The paper focuses on ensuring the rational choice of parameters of the mating surfaces of parts when designing process equipment based on the methods of artificial intelligence. Methodology.
S. S. Tyshchenko, A. V. Krasniuk, T. V. Ulchenko, A. S. Shcherbak   +3 more
doaj   +1 more source

Optimization of machining path for integral impeller side milling based on SA-PSO fusion algorithm in CNC machine tools

Frontiers in Mechanical Engineering
The five axis linkage Computer Numerical Control machine tool for integral impeller can achieve blade machining through side milling, which is of great significance for improving the machining accuracy, production efficiency, and long-term stability of ...
Yu Zhao
doaj   +1 more source

Locally Recoverable Codes with availability from a family of fibered surfaces. [PDF]

Des Codes Cryptogr
Salgado C, Vicino L.
europepmc   +1 more source

Trimetallic Single-Atom Alloys: Active Site Synergy or Most Reactive Atom Dominance? The Case of RhPtCu(111). [PDF]

J Phys Chem C Nanomater Interfaces
Lal V, H Sykes EC.
europepmc   +1 more source

Reversal of Glass Transition Temperature at Buried Interfaces in Thermosetting Epoxy Reveals Competition Between Network Maturity and Solid-Induced Confinement. [PDF]

ACS Macro Lett
Abe T, Tajima H, Yasukochi Y, Tanaka K.
europepmc   +1 more source

Enantioselective [4+1] Annulation of Benzamide with Cyclopropene via Chiral Cp^XCo(III) Catalysis: A DFT Perspective. [PDF]

ACS Omega
Oded BE, Kornweitz H.
europepmc   +1 more source

Endomorphism algebras of abelian varieties with large cyclic 2-torsion field over a given field. [PDF]

Res Number Theory
Goodman P.
europepmc   +1 more source

Spin-quenching cobalt center for efficient ammonia synthesis derived from oxide mixology. [PDF]

Nat Commun
Qian S, Wang Y, Dai T, Sun X, Nie K, Wang M, Wang T, Yang J, Ji Y, Feng K, Su D, Yan B, Cheng Y, Yan N.   +13 more
europepmc   +1 more source