The classical problem of the deflection of a cantilever beam of linear elastic material, under the action of an external vertical concentrated load at the free end, is analysed. We present the differential equation governing the behaviour of this physical…

This thesis examines the claims of Jeffrey Timm and James Buchanan that the field of Comparative Philosophy is moving in a postmodern direction. I examine their conception of the postmodern and compare to both the most influential views of postmodernism…

El objetivo de esta tesis es el estudio de algunos problemas diofánticos. Unos relacionados con ternas pitagóricas, y otros con funciones aritméticas.
En concreto se empieza, en el capítulo 1, por dos breves notas históricas sobre la aritmética de Diofanto…

El objetivo principal de esta tesis doctoral es la fundamentación de técnicas de simulación y modelos hidrodinámicos adecuados para la simulación de fluidos simples y complejos a escala mesoscópica. El problema general de los fluidos complejos, desde el punto de…

Bleached holograms are one of the most interesting techniques used to produce phase holograms of high quality on photographic emulsions. Of particular interest is the method of fixation-free rehalogenating bleaching. Using Kogelnik's coupled-wave theory we shall obtain information about the…

We present three ways of treating the problem of fluid flow in a hollow cylinder. One method involves a differential equation, and the other two involve more physical insight. We discuss the relative advantages of each method., The following article…

Cables are one of the common structures studied in a first-year engineering mechanics course (statics), since the flexible cable is one of the usual methods of supporting loads. For example, the suspension bridge has been used for many centuries and…

Two new species of Enclisis Townes, 1970 from Spain are described and illustrated: E. dichroma sp. n. and E. schwarzi sp. n. The new species are distinguished from the closest species E. infernator and E. ornaticeps by head and leg…

The classical problem of deflection of a cantilever beam of linear elastic material, under the action of an uniformly distributed load along its length (its own weight) and an external vertical concentrated load at the free end, is experimentally and…

Photographic emulsions are still widely used to record holographic optical elements. In particular, if high diffraction efficiencies are needed, phase volume holograms are preferably recorded on these emulsions. Two particular techniques producing high-quality volume phase holograms are fixation-free rehalogenating bleaching…