Journals National University of Science and Technology (NUST)
Not a member yet
174 research outputs found
Sort by
Studies on paramphistomes infecting goats and sheep from Gwanda District in Zimbabwe
Get PDFParamphistomes were collected from 3000 goats and 1000 sheep from various localities in Gwanda district in Matabeleland South Province Zimbabwe. On slaughter their stomachs, rumens and reticulum were cut open and their inner walls were examined for attached paramphistomes. Identifications were based on the morphological structures and measurements of diagnostic features from flattened and median sagittal sections. Analysisof the structures of the acetabulum, pharynx and genital atrium revealed the following parasites in the area, Calicophoron microbothrium, Calicophoron clavula and Ceylonocotyle dicranocoelium. The degree of tissue damage on the host was generally slight except for cases where Ceylonocotyle dicranocoelium was involved. The percentage of goats infected with paramphistomes was 2% while in sheep it was 6%. The number of parasites in goats ranged from 5 to 500 while in sheep the range was 5 to 1000
River Flow Measurement using Salt Gulp Conductivity
Get PDFA meter has been built in order to measure the volume flow rate of water through a river. A known quantity of salt should be thrown into the river upstream of the meter, then the meter automatically measures flow by integrating conductivity until it returns to normal and taking the reciprocal. The meter comprises an Intel 87C51 microcontroller which reads measurements from the display driver lines of a conventional conductivity meter, performs the integration, then displays the result on a separate liquid crystal display
The Applications of Information and Communication Technologies in Higher Education, in Less Developed Countries
Get PDFSurveys have been carried out by the International Association of Universities (IAU) and have shown that 70% of its member institutions have (an) expert(s) for Information and Communication Technologies (ICTs) in teaching and learning of which Africa, Latin America and Oceania have very low percentages. At the same time there is indeed not only a high demand for ICT in developing countries but in particular a demand for education that will help these countries to improve their socio-economic problems. This paper discusses and offers arguments for the growing possibilities of using ICTs as a training tool that can help Higher Education institutes in less developed countries to offer its students tremendous new possibilities in research and education, and open wider access to information as well as promoting active analytic thinking for purposes of solving socio-economic problems faced by these countries. A survey was carried out to find the level of connectivity and availability of experts for ICTs in teaching and learning in Universities in Zimbabwe. Questionnaires were administered to four of the six established state universities with more than ten departments each. The survey revealed that there is lack of experts of ICTs in teaching and learning and there are very few resources for this purpose. It is recommended that Higher education in less developed countries with the help of their governments be serious in developing and expanding the use of ICTs in teaching and learning
The Usefulness of One-Wire Networks
Get PDFThe class of networks generally known as "one-wire" is introduced, and the salient points of architecture, collision handling and protocol are described. The suitability of these networks for communication between microcontrollers is explained, and three methods of interfacing are outlined. Such systems are illustrated by reference to the CAN network the Dallas iButton and a home security system