This paper proposes a patch antenna array as an alternative feed for dish antennas on board satellites to solve the weight problem constituted by conventional feed horns. An 8x1 linear, C-Band, circular patch antenna array configuration with a broadside radiation pattern is designed as feed for a dish antenna with F/D ratio of 0.36 corresponding to aperture illumination of 140. The result of an...

In the scenario of increased reports on boron (B) supplementation in animal diets for beneficial effects, there is inadequate information on B content of animal feeds. The present study was carried out to quantify the level of B in animal feeds commonly used in tropical feeding systems. Samples of a total of 225 feeds were procured. The feed samples were oven dried, ground to 1 mm size and wet ...

Many Web-based data sources and services are available as feeds, a model that provides consumers with a loosely coupled way of interacting with providers. The current feed model is limited in its capabilities, however. Though it is simple to implement and scales well, it cannot be transferred to a wider range of application scenarios. This paper conceptualizes feeds as a way to serialize query ...

In 2006 in Germany new recommendations for the supply of energy and nutrients to pigs were published, including a modification of the energy evaluation on the basis of metabolisable energy for pigs (MES). It was the objective of this meta-analysis to calculate equations that can be used for predicting MES in compound feeds for pigs on the basis of their nutrient concentrations. Data from digest...

Introduction Feeds should be selected with the nutrient requirements of the horse in mind, recognizing that requirements vary with the life stage of the horse (growing, pregnant, lactating, working, idle). Feeds for horses should always be clean and free from toxins. Feeds should also promote gastrointestinal health. The large intestine (cecum and colon) of the digestive tract contains a divers...

In addition to naturally synthesised L-AA, over 80,000 tonnes of synthetic L-AA are produced each year and used to manufacture vitamin supplements, in the food processing and beverage manufacturing industries as well as a supplement in animal feeds. The majority of L-AA is currently produced by primarily chemical means via the seven-step Reichstein process. Alternative methods use prokaryotic f...

Introduction Really Simple Syndication (RSS) Feeds allows users to access blogs and articles in an easy to read format. It cuts out the overhead of navigating websites for content and allows users to get information more quickly. Currently, the user is in total control of their RSS feeds, adding and deleting feeds according to their tastes. This requires the user to actively search out RSS feed...

The prevalence of Salmonella in southern Africa in farm feeds and by-products of animal origin during 1982-1988 was determined. Salmonella occurred in 5.18% of the farm feed samples and in 9.54% of the by-product samples. Different serovars were isolated, some only once. The findings underestimate the true prevalence of Salmonella in farm feeds and by-products, and is representative of only the...