La alteración de la dimensión vertical es un tema controvertido desde hace más de 50 años, al día de hoy no se conoce un protocolo exacto para determinar qué es la dimensión vertical adecuada para cada persona y la variación adecuada de esta a la que se puede alguna vez un paciente sin provocar algún tipo de alteración articular, muscular, funcional o estética.
En este artículo de revisión de tema, se muestran los diferentes conceptos y criterios que se deben tener en cuenta para llevar a cabo el éxito los tratamientos que se realizan ya sea en pacientes dentados, editados o totalmente editados para determinar una dimensión vertical que se adaptan a cada paciente mediante parámetros como la estética facial, la salud de la articulación temporomandibular, oclusión y fonética.
ABSTRACT. Introduction: the objective of this study was to analyze the behavior of 375 composite resin disks of five commercial systems (Z100 (200, 400, 600, 800 and 1000° C)
DESCRIPCIÓN DE LOS CAMBIOS MACROSCÓPICOS DE DISCOS DE RESINA COMPUESTA SOMETIDOS A ALTAS TEMPERATURAS CON FINES FORENSES DESCRIPTION OF MACROSCOPIC CHANGES IN COMPOSITE RESIN DISKS SUBJECTED TO HIGH TEMPERATURES FOR FORENSIC PURPOSES
This paper presents a fatigue life calculation for the pole, the rotor rim, and the rotor spoke of a 100 MW hydro-generator. Mechanical and electrical parameters during unit start, with the hydro-generator working at several power levels, and during a load rejection from 100 MW were measured. The measured loads together with centrifugal force, gravity, and magnetic pulling force were included in finite element models to quantify stresses. Also, stresses produced during over-speed, phase-to-ground failure, and phase-to-phase failure were evaluated. A stress history for each element was obtained by fitting the calculated stresses, with the power generation history collected hourly during one year of operation of the machine. Fatigue life calculation was performed by using the stress history along with the Wang-Brown multiaxial fatigue model.
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