Congrès International d'Architecture Moderne

About: Congrès International d'Architecture Moderne is a based out in . It is known for research contribution in the topics: Boundary value problem & Jet (fluid). The organization has 393 authors who have published 403 publications receiving 4104 citations.

Comparative study of free vibration of anti-symmetric angle-ply laminated plates

Abstract: In this study free vibrations of anti-symmetric angle-ply composite plates including shear deformation under clamped-clamped boundary conditions are presented. Two types of numerical methods are adopted to analyze the problem. The spline and radial basis functions base mesh free scheme are applied simultaneously to approximate the displacement and rotational functions. Comparative studies have been made for analyzing the frequency parameters with respect to the material properties, number of layers, fiber orientations, side-to-thickness ratio and aspect ratio. The results are depicted in terms of tables and graphs.

Cyclic Creep: Thermocyclic Durability

Abstract: Numerical methods are considered for cyclic creep, in particular, for thermocyclic creep. In case of a stable material state and periodically varying loading and temperature field, the developed methodology enables straightforward evaluation of limiting cycle parameters without the calculation of intermediate transient cycles. Interaction of plastic strain and creep and also a role of long-term exposure during cycle parts under high temperatures are described. Numerical examples indicate the possibility of considerable variation of stress and strain ranges induced by periodic external loads and thermal expansion in case of cyclic creep. This makes a drastic effect on the evaluation of the cyclic durability of a structure.

Influencia de la didáctica de la enseñanza proyectual en las prácticas docentes de asignaturas aportantes. estudio interpretativo en la carrera de diseño industrial, facultad de arquitectura, urbanismo y diseño

Abstract: Este trabajo propone indagar y reflexionar acerca de la influencia de la didactica de la ensenanza proyectual en disciplinas cuyo campo de estudio especifico no es el diseno. Nuestro objetivo es explorar, en el marco de una experiencia didactica de asignaturas fuera del eje del proyecto, los diferentes planos en los que se despliega el pensamiento proyectual, observando el modo en que sus modos de razonamiento y caracteristicas definitorias son puestos en juego como recursos didacticos de buena ensenanza. Este estudio toma como unidad de analisis un Trabajo Practico seleccionado por estudiantes avanzados de la carrera, y se focaliza en explorar la metodologia didactica propuesta a traves del Plan de Trabajo Docente, las Guias de Trabajo Practico, y entrevistas a los docentes responsables desde una perspectiva narrativa. Nos proponemos la eventual construccion de categorias de analisis que aporten a un conocimiento didactico que consideramos de interes desde dos aspectos. Por un lado, creemos que este ejercicio tiene la capacidad de promover la reflexion critica en los docentes; por otro lado, esperamos visibilizar practicas que favorecen la construccion del conocimiento disciplinar, pero que se validan desde otras areas, consideradas como concurrentes o aportantes a la proyectualidad.

Estabilidad aeróbica y calidad fermentativa e higiénica de ensilados de maíz. efecto de la fecha de aprovechamiento y del uso de inoculantes

Abstract: espanolLos anos 2004 y 2005, se realizaron dos ensayos, para estudiar el efecto de la fecha de corte (semanas 9, 11 y 13 tras la foracion femenina) y el uso de inoculantes comerciales (L Fresh y P11A44, a base de Lactobacillus buchneri, y LMS01 y P1188, a base de bacterias lacticas homofermentativas) sobre la calidad de los ensilados de maiz en silos de laboratorio. Se detecto la presencia de Escherichia coli y Listeria monocytogenes en 30 y 29 muestras de maiz fresco, respectivamente, de un total de 30, y en cero y dos de maiz ensilado, respectivamente, de un total de 120. Los ensilados de maiz cosechado en la semana nueve tuvieron un porcentaje menor de N-NH3 sobre N total. Se concluyo que el uso de inoculantes a base de Lactobacillus buchneri puede reducir los recuentos de mohos y levaduras, y la inestabilidad aerobica de los ensilados de planta entera de maiz. Palabras clave: Lactobacillus buchneri, mohos, levaduras, Listeria monocytogenes, Escherichia coli. EnglishTwo experiments were carried out in two consecutive years (2005 and 2006) to compare the effect of harvest time (week 9, 11 and 13 after feminine fowering) and the use of commercial inoculants (L Fresh and P11A44, composed of on Lactobacillus buchneri, and LMS01 and P1188, composed of homofermentative lactic bacteria). The presence of Escherichia coli and Listeria monocytogenes was detected on 30 and 29 fresh maize samples, out of 30, and zero and two maize silage samples, out of 120, respectively. Silages made of maize harvested on week nine showed less percentage of N-NH3 on total N. The frst year, silages treated with L. buchneri showed higher pH, lower lactic acid content, higher acetic and propionic acid content, higher counts of total aerobic microorganisms but lower counts of yeasts and moulds, and higher aerobic stability than silages treated with homofermentative bacteria. In the second year, with lesser number of silages, signifcant differences between inoculants were detected just in total aerobic microorganisms counts.

Terrestrial laser scanners self-calibration study: Datum constraints analyses for network configurations

Abstract: Similar to other electronic instruments, terrestrial laser scanner (TLS) can also inherent with various systematic errors coming from different sources. Self-calibration technique is a method available to investigate these errors for TLS which were adopted from photogrammetry technique. According to the photogrammetry principle, the selection of datum constraints can cause different types of parameter correlations. However, the network configuration applied by TLS and photogrammetry calibrations are quite different, thus, this study has investigated the significant of photogrammetry datum constraints principle in TLS self-calibration. To ensure that the assessment is thorough, the datum constraints analyses were carried out using three variant network configurations: (1) minimum number of scan stations; (2) minimum number of surfaces for targets distribution; and (3) minimum number of point targets. Based on graphical and statistical, the analyses of datum constraints selection indicated that the parameter correlations obtained are significantly similar. In addition, the analysis has demonstrated that network configuration is a very crucial factor to reduce the correlation between the calculated parameters.