94 resultados para Junções oclusiva


Relevância:

10.00% 10.00%

Publicador:

Resumo:

La obra pretende dar claridad acerca de los efectos que pueden ocasionar las conductas realizadas por las partes en el proceso civil, diferenciando éstas desde los contextos del derecho sustancial y del derecho procesal, entendiendo que una arista importante del problema a abordar es identificar cuándo las conductas se valoran desde el derecho sustancial, porque tienen la fuerza suficiente para desestimar los elementos axiológicos de la pretensión o de la excepción de mérito y cuándo afectan el proceso y deben valorarse desde el derecho procesal, porque simplemente entorpecen su secuencia y orden, pero de ninguna manera afectan la causa fáctica pretensional. Es el primer caso el que corresponde a las conductas omisivas, oclusivas y mendaces, y el segundo a las conductas desobligantes y altaneras, es decir, las conductas que afectan la moral y la ética que debe pernear el proceso. El libro que se presenta a la comunidad académica es producto de la investigación, realizada por el Grupo de Investigaciones en Derecho Procesal y adscrita a la línea Valoración de la conducta omisiva, oclusiva y mendaz en un debido proceso civil y penal, realizada por el Grupo de Investigaciones en Derecho Procesal y adscrita a la línea Hacia una nueva hermenéutica de la decisión judicial en el debido proceso probatorio.

Relevância:

10.00% 10.00%

Publicador:

Resumo:

Dissertação (mestrado)—Universidade de Brasília, Faculdade de Ciências da Saúde, Programa de Pós-Graduação em Ciências da Saúde, 2012.

Relevância:

10.00% 10.00%

Publicador:

Resumo:

Metal-Ceramic (M/C) Zirconia-stainless steel interfaces have been processed through brazing techniques due to the excellent combination of properties such as high temperature stability, high corrosion resistance and good mechanical properties. However, some M/C interfaces show some defects, like porosity and cracks results in the degradation of the interfaces, leading even to its total rupture. Most of time, those defects are associated with an improper brazing parameters selection to the M/C system. In this work, ZrO2 Y-TZP and ZrO2 Mg - PSZ were joint with the stainless steel grade 304 by brazing using a eutectic silver-copper (Ag28Cu) interlayer alloy with different thermal cycles. Ceramic surfaces were previous mechanically metallized with titanium to improve adhesion of the system. The effect of temperature on the M/C interface was studied. SEM-EDS and 3 point flexural bend test were performed to evaluate morphology, chemical composition and mechanical resistance of the M/C interfaces. Lower thermal cycle temperatures produced better results of mechanical resistance, and more regular/ homogeneous reaction layers between braze alloy and metal-ceramic surfaces. Also was proved the AgCu braze alloy activation in situ by titanium

Relevância:

10.00% 10.00%

Publicador:

Resumo:

The thermoelectric energy conversion can be performed directly on generators without moving parts, using the principle of SEEBECK effect, obtained in junctions of drivers' thermocouples and most recently in semiconductor junctions type p-n which have increased efficiency of conversion. When termogenerators are exposed to the temperature difference (thermal gradient) eletromotriz a force is generated inducing the appearance of an electric current in the circuit. Thus, it is possible to convert the heat of combustion of a gas through a burner in power, being a thermoelectric generator. The development of infrared burners, using porous ceramic plate, is possible to improve the efficiency of heating, and reduce harmful emissions such as CO, CO2, NOx, etc.. In recent years the meliorate of thermoelectric modules semiconductor (TEG's) has stimulated the development of devices generating and recovery of thermal irreversibility of thermal machines and processes, improving energy efficiency and exergy these systems, especially processes that enable the cogeneration of energy. This work is based on the construction and evaluation of a prototype in a pilot scale, for energy generation to specific applications. The unit uses a fuel gas (LPG) as a primary energy source. The prototype consists of a porous plate burner infrared, an adapter to the module generator, a set of semiconductor modules purchased from Hi-Z Inc. and a heat exchanger to be used as cold source. The prototype was mounted on a test bench, using a system of acquisition of temperature, a system of application of load and instrumentation to assess its functioning and performance. The prototype had an efficiency of chemical conversion of 0.31% for electrical and heat recovery for cogeneration of about 33.2%, resulting in an overall efficiency of 33.51%. The efficiency of energy exergy next shows that the use of primary energy to useful fuel was satisfactory, although the proposed mechanism has also has a low performance due to underuse of the area heated by the small number of modules, as well as a thermal gradient below the ideal informed by the manufacturer, and other factors. The test methodology adopted proved to be suitable for evaluating the prototype