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STUDY ON THE ALTERNATIVE OF FEED SOURCES ON THE GROWTH OF CATFISH FRY USING ARTEMIA, ARTEMIA AND CRAYFISH (PRAWN), CRAYFISH (PRAWN) projectslib
ABSTACT
This study is on the alternative of feed sources on the growth of catfish fry using artemia, artemia and crayfish (prawn), crayfish (prawn). The search for alternative and sustainable protein sources has rendered artemia and crayfish as an attractive option in fish diets. Artemia and crayfish have a satisfactory amino acid profile and are rich in fats, minerals and vitamins. This study investigated the effects of levels artemia and crayfish in the meal diet of African catfish (Clarias gariepinus) fingerlings. The artemia supplemented diet and the crayfish supplemented diets were compared by observing the growth rate of the fish. The experiment lasted for 2 weeks using One hundred and fifty C. gariepinus fingerlings obtained from a commercial fingerling hatchery. During the end of the 14 days, the larvae fed on Crayfish had a growth rate of 32.95±12.62 % day-1, survival of 76.51±7.33% and Specific Growth Rate (SGR) of 0.17±0.00. The larvae fed on Artemia exhibited a growth rate, survival and SGR of 85.5±74.4% day-1, 97.71±0.00 % and 0.28±0.18, respectively. The larvae that fed on Artermia+crayfish exhibited a growth rate, survival and SGR of 88.1± 64.58% day-1, 95.73±24.14% and 0.32±0.20, respectively. The difference in performance between the feeds was mainly due to differences in their nutrient composition and levels. This study recommends the use of Artemia+crayfish as the best starter feed for the rearing of C. gariepinus larv
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DESIGN AND BUILDING OF A SMALL SHELL AND TUBE HEAT EXCHANGER USING ALGORITHM
ABSTRACT
This research work is on Design and building of a small shell and tube heat exchanger using algorithm. A heat exchanger is a device which is used to transfer thermal energy between two or more fluid. This project is mainly focusing on designing one type of a heat exchanger which is shell and tube heat exchanger. In this project a fixed tube plate type shell and tube heat exchangers was chosen, exchanger of 150000 lb per hour of kerosene that will be heated from 75 to 120°F by cooling a gasoline stream from 160 to 120°F at a calculated heat load of 3240000. The specification of the Heat exchanger as well as the detailed mechanical design was calculated. It is established that the heat exchanger with gasoline at the shell side and kerosene at the tube side is adequate for the operation. The available area obtained from the calculation is 2105ft2 and also the overall heat transfer coefficient obtained is Btu h -1 ft -2 °F-1 with a LMTD of 42.75°F. It is also seen that the heat exchanger is satisfactory and consist of 6 tube passes with tube outside diameter of 14 (BWG) and length of 24mm,the shell outside diameter of 803.4mm and thickness of 3.72mm. The material for construction for the shell side is carbon steel.
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AN AUTOMATED AND ROBUST IMAGE PROCESSING ALGORITHM FOR GLAUCOMA DIAGNOSIS FROM FUNDUS IMAGES USING NOVEL BLOOD VESSEL TRACKING AND BEND POINT DETECTION
Abstract
This research is on an automated and robust image processing algorithm for glaucoma diagnosis from fundus images using novel blood vessel tracking and bend point detection. The study examined the use of automated image processing in diagnosing glaucoma. The study obtained the data used for the study from a fundus image data base online. From the fundus images the optic disc and optic cup were segmented based on an image processing algorithm proposed by the study. The optic disc was segmented using a framework that improves accuracy by removing nose and blobs. The optic cup was segmented by tracking the blood vessel and their bend points which are joined together to obtain an optic cup contour. The result of the Cup-to-Disc-Ratio (CDR) was then compared to the ground truth of the fundus images and it was observed to have high similarity. The performance of the algorithm was also accessed and it was observed to have an accuracy of 98.7%.
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