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Resuelva los siguientes problemas: 1. Una barra de aluminio se encuentra unida rígidamente entre una barra de acero y una de bronce como se muestra en la figura. Encontrar el valor máximo de P, que no exceda 1500 kg/cm2 en el acero, 950 kg/cm2 en el aluminio y 1100 kg/cm2 en el bronce. 2. La fuerza axial mostrada en la figura, es de P=7500 kg, determine la longitud más pequeña permitida L, unida a la placa de madera que no exceda un esfuerzo de 30 kg/cm2. 3. Dos barras se suponen absolutamente rígidas están articuladas en A y en D, y separadas en C mediante un rodillo. En B, una varilla de acero ayuda a soportar la carga de 5000 kg. Determinar el desplazamiento vertical del rodillo situado en C. =2E6 kg /cm2 =350 mm2 =5E3 kg
Resistencia de materiales
RESISTENCIA DE MATERIALES I2019 •
El eje BC es hueco y sus diámetros interior y exterior miden 90 mm y 120 mm, respectivamente. Los ejes AB y CD son sólidos y su diámetro es d. Para la carga mostrada en la figura adjunta, determine (a) Los esfuerzos cortantes mínimo y máximo en el eje BC, (b) el diámetro requerido d de los ejes AB y CD si el cortante admisible es de 65 MPa. Problema 6.1
Journal of the Turkish German Gynecological Association
The comparison of the degree of apoptosis in ovaries and fallopian tubes between two different surgical interventions for tubal ligation: A rat model2018 •
To compare the degree of apoptosis in ovaries and tubal epithelium observed secondary to tubal ligation either by Pomeroy's method or bipolar electrocauterization in a rat model. A total of 24 female Sprague-Dawley rats were randomly assigned into 3 study groups: control (n=8), Pomeroy (n=8), and the electrocauterization group (n=8). Apoptotic cells were detected on the primary, secondary, tertiary follicles of the ovaries, and on the tubal epithelium using terminal deoxynucleotidyl transferase-mediated deoxyuridine triphosphate nick end-labeling. The apoptotic index was calculated for each group by the percentage of the stained cells. The apoptotic index of tubal epithelium was significantly higher in the bipolar electrocauterization group compared with the control and Pomeroy groups (3.1±0.8 vs. 1.4±1.0, p=0.018 and 2.0±1.2, p=0.03, respectively) whereas there was no significant difference between Pomeroy's method and the control group. The apoptotic index of primary folli...
Proceedings of the 1996 ACM symposium on Applied Computing - SAC '96
Investigating monitoring configurations1996 •
2009 •
Proceedings of the 7th Unconventional Resources Technology Conference
Design of High Pressure CO2-in-Mineral Oil Emulsions, CH4-in-Mineral Oil Foams and N2-in-Mineral Oil Foams Stabilized by Novel Oil-soluble Surfactants for Waterless Hydraulic Fracturing and Proppant TransportSakrale Räume im Judentum
The Sacredness of the "Khakhmey-Lublin" Yeshiva in the Yiddish Press and the religious discourse of the "Youth Agudah" (in German)2020 •