Four fistulated Holstein cows were arranged in a 4 x 4 Latin square design to study the effects of level and type of energy source on milk yield and composition. Treatments consisted of a basal diet fed alone (low energy treatment) or with 3.3 Mcal of net energy for lactation from extra nutrients perfused either into the rumen (either propionic acid or a mixture of volatile fatty acids) or into...

comparison of energy productivity of different crops can be used as an effective tool to prioritize crops planting in each area. this study was conducted in order to compare of wheat and barley farms of sistan and blochestan province in relation of various aspects of energy consumption at 2009. 100 wheat and 100 barley fields were selected randomly from zahedan, zabol, saravan, khash, iranshahr...

Yield stress in metallic glasses: The jamming-unjamming transition studied through Monte Carlo simulations based on the activation-relaxation technique. Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. The MIT Faculty has made this article openly available. Please share how this acc...

We used the basis of the x-ray extended range technique to measure the lattice spacing of LaB6 standard powder samples relative to silicon 640b standard powder samples with an accuracy of 5310−5 Å. Measurements were not constrained to one energy but were carried out over a 5 keV–20 keV energy range. These measurements used powder diffraction to determine the synchrotron beam energy, to diagnose...

The predominant ruminal bacteria that were obtained from a 10(8) dilution of ruminal fluid could be maintained as a mixed population for long periods as long as the bacteria were provided with a complex mixture of carbohydrates. Growth of predominant ruminal bacteria in carbohydrate-limited, ammonia-excess, continuous cultures (0.07/h) had a low requirement for maintenance energy, but the nongr...