3 research outputs found
Modelo matemático para el cálculo de las transmisiones Sinfín cilíndricas. // Mathematical model for worm gear calculation.
Durante la reconversión de reductores Sinfín se presentan diversas situaciones como resultado de los parámetrosgeométricos de la transmisión que son determinado en un elemento que posee desgaste, como se pretende restaurar lascualidades de servicio de un par dentado, se precisa obtener la geometría original de los elementos engranados. En esteartículo se propone un modelo matemático que da solución a las situaciones más frecuentes y se presentan algunos de losalgoritmos a partir de los cuales se elaboró un software para el cálculo.Palabras claves: Engranajes Sinfín; cálculo geométrico; diseño de engranajes, modelo matemático______________________________________________________________________Abstract:On this paper based on measurement of the gear elements after wear is presented a mathematical model which what can becalculated the original geometrical parameter of Worm gear for the more frequency situation. The algorithmic for thecalculate program computer is shownKey words: Worm gear, geometric calculation, gear design, mathematical model.</p
NUTRITIONAL AND ANTINUTRITIONAL EVALUATION OF WILD YAM (Dioscorea spp.)
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The wild yam tubers consumed by the tribes Kanikkars / Palliyars of South- Eastern slopes of Western Ghats, Tamil Nadu (Dioscorea alata, D. bulbifera var vera, D. esculenta, D. oppositifolia var dukhumensis, D.oppositifolia var. oppositifolia, D. pentaphylla var. pentaphylla, D. spicata, D. tomentosa and D. wallichi) were evaluated for its nutritional quality. From the present investigation, it is observed that most of the wild edible yams were found to be a good source of protein, lipid, crude fibre, starch, vitamins and minerals. Antinutritional substances like total free phenolics, tannins, hydrogen cyanide, total oxalate, amylase and trypsin inhibitor activities were quantified.