Results 31 to 40 of about 894,316 (176)

Modified sine bar device measures small angles with high accuracy [PDF]

open access: yes, 1968
Modified sine bar device measures small angles with enough accuracy to calibrate precision optical autocollimators.
Thekaekara, M.
core   +1 more source

The complex Sine-Gordon equation as a symmetry flow of the AKNS Hierarchy

open access: yes, 2000
It is shown how the complex sine-Gordon equation arises as a symmetry flow of the AKNS hierarchy. The AKNS hierarchy is extended by the ``negative'' symmetry flows forming the Borel loop algebra.
A H Zimerman   +24 more
core   +1 more source

Zoster sine herpete

open access: yesInternational Journal of Clinical Practice, 1990
SummaryA 61‐year‐old man presented with acute facial pain and subsequently developed the rash of herpes zoster in a distal dermatome. Treatment with acyclovir was commenced before development of the rash. The atypical presentation and the benefits of early diagnosis and treatment are discussed.
openaire   +2 more sources

(Anti)symmetric multivariate trigonometric functions and corresponding Fourier transforms

open access: yes, 2007
Four families of special functions, depending on n variables, are studied. We call them symmetric and antisymmetric multivariate sine and cosine functions.
A. Klimyk   +8 more
core   +1 more source

On integrability aspects of the supersymmetric sine-Gordon equation

open access: yes, 2017
In this paper we study certain integrability properties of the supersymmetric sine-Gordon equation. We construct Lax pairs with their zero-curvature representations which are equivalent to the supersymmetric sine-Gordon equation.
Bertrand, Sébastien
core   +1 more source

Log-sine evaluations of Mahler measures, II

open access: yes, 2011
We continue the analysis of higher and multiple Mahler measures using log-sine integrals as started in "Log-sine evaluations of Mahler measures" and "Special values of generalized log-sine integrals" by two of the authors. This motivates a detailed study
Borwein, David   +3 more
core  

DOS TEXTOS FUNDACIONALES DE LA CRÍTICA DEL RELATO ECUATORIANO

open access: yesKipus: Revista Andina de Letras y Estudios Culturales
Ponencia presentada en el encuentro ·La tradición de la crítica y 'la historiografía literarias en el Ecuador-, organizado por el Área de Letras de la Universidad Andina Simón Bolívar, en Quito, del 15 al 16 de noviembre de 2000.
Diego Araujo Sánchez
doaj  

Application of Swept-Sine Excitation for Acoustic Impedance Education [PDF]

open access: yes
The NASA Langley Normal Incidence Tube (NIT) and Grazing Flow Impedance Tube (GFIT) are regularly employed to characterize the frequency response of acoustic liners through the eduction of their specific acoustic impedance.
Howerton, Brian M.   +2 more
core   +1 more source

LA ETNICIDAD NEGRA E INDÍGENA Y LOS MITOS DE LA NACIONALIDAD COSTARRICENSE

open access: yesKipus: Revista Andina de Letras y Estudios Culturales
Archivo histórico de Kipus: Revista Andina de Letras y Estudios Culturales, 2000.
Albino Chacón Gutiérrez
doaj  

EL SILENCIO DE NELLIE CAMPOBELLO

open access: yesKipus: Revista Andina de Letras y Estudios Culturales
Este trabajo es el prólogo de Cartucho. Relatos de la lucha en el norte de México de Nellie Campobello (México: Era, 2000). Lo reproducimos con autorización del auror.
Jorge Aguilar Mora
doaj  

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