Synthese des 3-Oxyflavons /

Thesis (doctoral)--Universitat Bern, 1898.

Principles of psychology /

Includes index.

Psychology and logic.

Mode of access: Internet.

Interlevel correlations of temperature and density, surface to 60 km. /

"Meteorology Division. Project 6670."

Polska XVI wieku pod względem geograficzno-statystycznym,

At head of title of v. 12, pt. 1: Wydawnictwa Towarzystwa naukowego warszawskiego...Komisya historyczna.

Measurements of stress-optic coefficient in polymer optical fibers

We have systematically measured the differential stress-optic coefficient, ?C, in a number of poly(methyl methacrylate) (PMMA) fibers drawn with different stress, ranging from 2 up to 27 MPa. ?C was determined in transverse illumination by measuring the dependence of birefringence on additional axial stress applied to the fiber. Our results show that ?C in PMMA fibers has a negative sign and ranges from -4.5 to -4.5×10-12 Pa-1, depending on the drawing stress. Increase of the drawing stress results in greater initial fiber birefringence and lower ?C.

Measurements of polarimetric sensitivity to hydrostatic pressure, strain and temperature in birefringent dual-core microstructured polymer fiber

We experimentally characterized a birefringent microstructured polymer fiber of specific construction, which allows for single mode propagation in two cores separated by a pair of large holes. The fiber exhibits high birefringence in each of the cores as well as relatively weak coupling between the cores. Spectral dependence of the group and the phase modal birefringence was measured using an interferometric method. We have also measured the sensing characteristics of the fiber such as polarimetric sensitivity to hydrostatic pressure, strain and temperature. Moreover, we have studied the effect of hydrostatic pressure and strain on coupling between the cores.

An integral equation method for a mixed initial boundary value problem for unsteady Stokes system in a doubly-connected domain

We present a novel numerical method for a mixed initial boundary value problem for the unsteady Stokes system in a planar doubly-connected domain. Using a Laguerre transformation the unsteady problem is reduced to a system of boundary value problems for the Stokes resolvent equations. Employing a modied potential approach we obtain a system of boundary integral equations with various singularities and we use a trigonometric quadrature method for their numerical solution. Numerical examples are presented showing that accurate approximations can be obtained with low computational cost.

Differential Equations in Abstract Cones

We extend the method of quasilinearization to differential equations in abstract normal cones. Under some assumptions, corresponding monotone iterations converge to the unique solution of our problem and this convergence is superlinear or semi–superlinear

Metodologías y usos de la imagen en la pintura figurativa contemporánea: fragmentación, borrosidad y estética digital

Esta investigación trata de ofrecer una visión concreta acerca de porque un buen número de artistas, están trabajando con imágenes que comparten estéticas o numerosos elementos visuales. El objetivo principal no son, de hecho, los artistas, sino más bien las razones que podrían llevarles a adoptar estas estéticas. La investigación se divide en tres partes principales, y una cuarta que funciona como introducción a las diversas problemáticas planteadas. La primera trata acerca de cómo la fragmentación ha influenciado a la pintura de algunos artistas y pretende encontrar las razones de esta influencia. La segunda se centra en un tipo de pinturas conocidas como “borrosas”, cercanas al concepto de “efecto Tuymans” que ideó Jordan Kantor. La última parte de este trabajo aborda como el mundo digital y concretamente los gráficos de ordenador, han podido influenciar también el modo en que pintamos...

Polarimetric sensitivity to hydrostatic pressure and temperature in birefringent dual-core microstructured polymer fiber

We experimentally characterized a birefringent microstructured polymer fiber of specific construction, which allows for single mode propagation in two cores separated by a pair of large holes. The fiber exhibits high birefringence in each of the cores as well as relatively weak coupling between the cores. Spectral dependence of the group and the phase modal birefringence was measured using an interferometric method. We have also measured the sensing characteristics of the fiber such as the polarimetric sensitivity to hydrostatic pressure and temperature. © 2010 SPIE.