IOSR-JESTFT   Volume-9 ~ Issue-7 ~ July 2015

Abstract:5year data on mean daily global radiation for Jos, Nigeria, were used to study how the hourly global radiation varies over a typical day at Jos. Empirical formulae were used in the analysis. The irradiance at solar noon was found to have a maximum value of 3.81 2 MJm in February and a minimum value of 2.22 2 MJm in July, with an average value of 3.07+0.55 2 MJm over the 5year period examined. Within the same period, the hourly insolation varied from 0.25 2 MJm at 7.00am to 3.07 2 MJm at 12.00noon, with an assumption that the day was symmetrical about the solar noon. Its average is 1.70±1.01 2 MJm over a daylength of 11hours.

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Abstract: The main aim of this study was to examine the performance of probiotic bacteria (Lactobacillus acidophilus NCDC-291 and BifidobacteriumbifidumNCDC-232) as sole starter culture in fermentation of goat and cow milk supplemented with Fructooligosaccharides (FOS) and Inulin as prebiotics. Sixteen batches of set yoghurts were conventionally formulated from both types of milk fortified with 3% Skim Milk Powder (SMP) and supplemented with 1.5, 2, and 3 % FOS and Inulin separately. During 14 day refrigerated storage, enumeration of viable cells using Pour Plate technique was carried out.The results showed that the supplementation of both goat and cow milk with either FOS or Inulin improved both the growth and survival of the probiotic cultures in the resulting yoghurts.

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Abstract:The farmers have the difficult task of managing their crops on poor soils in harsh and risky climates. Crop is defined as an "Aggregation of individual plant species grown in a unit area for economic purpose". Growth is defined as an "Irreversible increase in size and volume and is the consequence of differentiation and distribution occurring in the plant". Simulation is defined as "Reproducing the essence of a system without reproducing the system itself". In simulation the essential characteristics of the system are reproduced in a model, which is then studied in an abbreviated time scale..

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