Results 51 to 60 of about 2,364,878 (144)

Thin‐film lithium niobate photonics: Frontiers in millimeter‐wave and terahertz generation and integrated applications

open access: yesInfoScience, Volume 3, Issue 3, September 2026.
With the advancement of 6G communications, high‐precision radar, and advanced imaging technologies, there is a growing demand for compact, high‐performance light sources capable of generating high‐frequency radio waves (millimeter‐wave and terahertz waves). This article systematically introduces how to efficiently generate these high‐frequency waves on
Jianfeng Xiong   +8 more
wiley   +1 more source

Statistical Scale Analyses of a Diurnal Periodicity in Auroral Kilometric Radiation, Observed by Wind/WAVES

open access: yesJournal of Geophysical Research: Space Physics, Volume 131, Issue 9, September 2026.
Abstract The Earth's strongest natural radio emission is Auroral Kilometric Radiation (AKR), which is correlated with auroral intensity, and is a barometer for space weather. AKR is generated by the electron cyclotron maser instability, with sources on auroral field lines. Previous work on AKR and radio emissions from other planets (or stars) points to
Alexandra Ruth Fogg   +9 more
wiley   +1 more source

Algebraic curves, integer sequences and a discrete Painleve transcendent [PDF]

open access: yes
We consider some bilinear recurrences that have applications in number theory. The explicit solution of a general three-term bilinear recurrence relation of fourth order is given in terms of the Weierstrass sigma function for an associated elliptic curve.
Hone, Andrew N.W.
core  

Deep‐Learning‐Assisted Design of Dynamically Tunable Near‐Infrared Dual‐Band Lithium Niobate Metamaterial Absorber for Optical Communication

open access: yesNanophotonics, Volume 15, Issue 16, 26 August 2026.
An end‐to‐end deep‐learning framework combining inverse prediction and gradient refinement enables rapid design of dynamically tunable lithium‐niobate metamaterial absorbers for optical communication. Near‐perfect dual‐band absorption is achieved at 1310 and 1550 nm with electro‐optic wavelength tuning.
Xiajun Liu   +7 more
wiley   +1 more source

Computing all integer solutions of a genus 1 equation [PDF]

open access: yes
The Elliptic Logarithm Method has been applied with great successto the problem of computing all integer solutions of equations ofdegree 3 and 4 defining elliptic curves. We extend this methodto include any equation f(u,v)=0 that defines a curve of genus
Stroeker, R.J., Tzanakis, N.
core  

Two row mixed integer cuts via lifting [PDF]

open access: yes
Recently, Andersen et al. [1], Borozan and Cornuéjols [6] and Cornuéjols and Margot [9] characterized extreme inequalities of a system of two rows with two free integer variables and nonnegative continuous variables.
WOLSEY, Laurence A., SANTANU, Dey
core  

There are no multiply-perfect Fibonacci numbers [PDF]

open access: yes, 2011
Here, we show that no Fibonacci number (larger than 1) divides the sum of its ...
Lewis, Ryan H.   +11 more
core   +1 more source

Perfect Circle's Plant in Richmond, Indiana

open access: yes, 1940
Luvena Dethridge sang in concerts while holding various jobs. After working at Reid Memorial Hospital as a cook, laundress, and maid, she worked as a piston inspector for the Perfect Circle plant in Richmond in the 1940s. A contract for a concert in 1945
Perfect Circle Company
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Gaussian Integer Sequences of Length 4n with Ideal Periodic Auto-Correlation Function

open access: yes, 2009
Many researchers had developed polyphase sequences, so called \ue2perfect sequence\ue2 or \ue2ideal sequence\ue2, with ideal periodic auto-correlation function.
Chen, I-sheng
core  

Perfect codes over gaussian integer graphs and Eisenstein-Jacobi

open access: yes, 2019
Orientador: Cintya Wink de Oliveira BeneditoDissertação (mestrado profissional) - Universidade Estadual de Campinas, Instituto de Matemática Estatística e Computação CientíficaResumo: Códigos corretores de erros é uma importante subárea da teoria da ...
Silva, Eider de Jesus Avelar da, 1962-
core  

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