On-farm feed uniformity survey

A CMBPOL mission concept: feed farm on a simple spinner

We present a concept for a medium scale satellite mission to measurement the Bmode polarization in the CMB at large angular scales. The idea is to close pack a multifrequency array of ∼1500 corrugated feeds to make a “feed farm”. The majority point along the spin axis of the satellite. The primary modulation is obtained by spinning the satellite. Thus, in any instant the polarization in one dir...

Quality Assurance for On - farm Feed Manufacturing FINAL

Feed Gate Adaptation of a Spinner Spreader for Uniformity Control

Variable rate application of fertilisers with traditional spinner-type spreaders is known to suffer from spread pattern uniformity variability as a function of application rate. To demonstrate this variability, simulations using models from the literature were carried out for two cases: (1) a dual disc spreader with segment-type feed gates; and (2) a single disc spreader with conical feed gates...

wind farm impact on generation adequacy in power systems

در سال های اخیر به دلیل افزایش دمای متوسط کره زمین، بشر به دنبال روش های جایگزین برای تامین توان الکتریکی مورد نیاز خود بوده و همچنین در اکثر نقاط جهان سوزاندن سوخت های فسیلی در نیروگاه های حرارتی به عنوان مهم ترین روش تولید توان الکتریکی مطرح بوده است. به دلیل توجه به مسایل زیست محیطی، استفاده از منابع انرژی تجدید پذیر در سال های اخیر شدت یافته است. نیروگاه های بادی به عنوان یک منبع تولید توان...

The use of antibiotics as feed additives for farm animals.

Antibiotics are added at low concentrations to feeds as growth stimulants and at therapeutic levels to cure known diseases. As their action in both instances is to modify bacterial, protozoal or fungal populations, the division between the two categories is indistinct ; this is especially so when intermediate levels are considered. The present outline of use includes other feed additives which ...