Results 1 to 10 of about 1,862 (172)

Creation of Low-Loss Triple-Ring Optical Filter via Direct Binary Search Inverse Design [PDF]

Sensors
This paper presents a triple-ring optical filter designed through direct binary search inverse design, comprising three cascaded rings in an add–drop configuration.
Yuchen Hu, Tong Wang, Wen Zhou, Bo Hu
doaj   +2 more sources

Valuation rings in finite-dimensional division algebras

Journal of Algebra, 1989
By a valuation ring in a division algebra \(D\) the authors understand a subring containing for each \(x\) in \(D\) either \(x\) or \(x^{-1}\). Let \(D\) be a division algebra of dimension \(n^ 2\) over its centre \(K\) and let \(B\) be a valuation ring in \(K\).
Brungs, H.H, Gräter, Joachim
openaire   +4 more sources

Even-order subgroups of finite-dimensional division rings

Journal of Algebra, 1977
Let K be a field. A finite group G is called K-adequate if there exists a K-division ring D (a finite-dimensional division algebra central over K) such that G is contained in D*, the multiplicative group of nonzero elements of D. Fein and Schacher have investigated the problem of determining for which fields K there exists a noncyclic group of odd ...
openaire   +4 more sources

Finite Dimensional Subalgebras in Matrix Rings Over Transcendental Division Algebras [PDF]

Proceedings of the American Mathematical Society, 1989
We prove in this article that for some classes of division algebras D D over a field
Lichtman, A. I., Wehrfritz, B. A. F.
openaire   +1 more source

Creation of Low-Loss Dual-Ring Optical Filter via Temporal Coupled Mode Theory and Direct Binary Search Inverse Design

Photonics
We propose a dual-ring optical filter based on direct binary search inverse design. The proposed device comprises two cascaded rings in an add–drop configuration.
Yuchen Hu, Tong Wang, Wen Zhou, Bo Hu
doaj   +1 more source

Beyond decoration: free-standing lace embroidery for 3D shaped surgical mesh implants. [PDF]

Sci Rep
Tonndorf R, Elschner C, Osterberg A, Mozer V, de Menezes EAW, Römer L, Kyosev Y, Spickenheuer A, Scheffler C, Stommel M.   +9 more
europepmc   +1 more source

Experimental and numerical study on waterproofing performance and leakage mechanism of bell-and-spigot joints in prefabricated utility tunnels. [PDF]

Sci Rep
Zhai CJ, Wu MF, Hu XD, Zhou MS, Zhong JR.   +4 more
europepmc   +1 more source

Analytical solution for deformation of an existing tunnel induced by shield tunnelling overcrossing in complex strata. [PDF]

Sci Rep
Huang K, Li Z, Zhang J, Chen R, Zhou K, Huang B, Xing K.   +6 more
europepmc   +1 more source

Durability of Nitinol in self-expanding devices. [PDF]

J Thorac Dis
Nappi F, Spadaccio C.
europepmc   +1 more source

Dynamic Wavefront Manipulation Enabled with VO₂-Based Reflective Terahertz Metasurfaces. [PDF]

Nanomaterials (Basel)
Huang R, Shi S, Sun M, Yang R, Lin Y, Wu M, Zhang M, Maksimenko S, He X.   +8 more
europepmc   +1 more source