two experiments were conducted to determine lysine (lys) requirements of two commercial strains, ross 308 and cobb 500, from 15 to 28d of age. basal diet was formulated to be adequate in all nutrients except for lys. incremental levels of supplemental lys were added to the basal diet generating six experimental treatments in a range from 0.60 to 1.20% digestible lys. birds were randomized acros...

A puzzling phenomenon of ice-stream flow is the stick–slip motion displayed by Whillans Ice Stream (WIS), West Antarctica. In this study we test the hypothesis that the WIS stick–slip motion has features similar to those of other known stick–slip systems, and thus might be of the same origin. To do so, we adapt a simple mechanical model widely used in seismology to study classic stick–slip beha...

The aim of this study is to establish the effects of stick use on rhythmic bimanual coordination in drummers. Eighteen drummers performed a rapid antiphase coordination task using their fingers and handheld drumsticks. We found no significant differences in the speed of tapping between finger and stick-use tapping, while stick-use tapping had a larger peak force and smaller variability in coord...

Recent modeling studies have explored whether earthquakes begin with a large aseismic nucleation process or initiate dynamically from the rapid growth of a smaller instability in a “cascade-up” process. To explore such a case in the laboratory, we study the initiation of dynamic rupture (stick slip) of a smooth saw-cut fault in a 76mm diameter cylindrical granite laboratory sample at 40–120MPa ...

Zusammenfassung Mit der Urban Challenge hat die DARPA Ende 2007 ihr erklärtes Ziel erreicht, nachzuweisen, dass autonomes Fahren prinzipiell möglich ist. In diesem Ar-tikel wird skizziert, welcher Stand tatsächlich erreicht wurde und welche Herausforderungen nun bearbeitet werden wollen. Summary Late in 2007, DARPA has conducted the Urban Challenge and achieved its declared goal, that autonomou...

This thesis investigates the moment, when the drumstick hits the membrane of a drum. Experiments were conducted to obtain information about the interaction of drummer, drumstick and membrane during a single stroke. Using a modified drumstick, the force on the drumstick, the acceleration of the stick’s tip, the duration of the contact between stick and membrane and the sound of the drum were rec...

wheat is one of the most important food staff in consumption pattern of each country. more than 50 percent of energy is provided by bread in the developing countries. the aim of this study was measuring wheat losses during pre-harvest and harvest stages in chaharmahal and bakhtiari province of iran in year 2013. wheat losses at harvest stages were measured to wheat varieties in 2 levels of omid...

16 We investigated the acquisition of skill in balancing a stick (52 cm, 34 g) on the fingertip in 17 nine participants using three-dimensional motion analysis. After 3.5 hours practice over 6 18 weeks, the participants could more consistently balance the stick for longer durations with 19 greatly reduced magnitude and speed of stick and finger movements. Irrespective of level of 20 skill, the ...