Adama University

About: Adama University is a education organization based out in Nazrēt, Ethiopia. It is known for research contribution in the topics: Population & Adsorption. The organization has 840 authors who have published 1010 publications receiving 5547 citations. The organization is also known as: Adama Science and Technology University & ቴክኖሎጂ ዩኒቨርሲቲ, አዳማ ሳይንስና ቴክኖሎጂ ዩኒቨርሲቲ.

Neural network-based design and evaluation of performance metrics using adaptive line enhancer with adaptive algorithms for auscultation analysis

Abstract: Auscultation is an important key for the physical (respiratory and circulatory) examination and is helpful in diagnosing various disorders. Auscultation is performed for the purposes of examining the circulatory and respiratory sounds and gastrointestinal system (bowel sounds). Besides inconsistencies in the propagation of the normal sounds, there are also several types of specific irregularities that can be heard in respiratory sounds: commonly known abnormal sounds in lung sound (wheezes, crackles, stridor, squawks, rhonchi and crackles) and heart sounds (heart murmurs). However, detection of abnormal sounds during auscultation needs extensive training and experience. Real-time separation of these heart sound signals from the lung sound signals is of great research interest and difficult to achieve. In this work, the authors proposed a novel adaptive line enhancer using nonlinear ANN design used for auscultation analysis. Our proposed designs are trained using different networks training algorithms which resulted in better mean square error reduction within compact time.

Some applications via fixed point results in partially ordered S b $S_{b}$ -metric spaces

Abstract: In this paper we give some applications to integral equations as well as homotopy theory via fixed point theorems in partially ordered complete $S_{b}$ -metric spaces by using generalized contractive conditions. We also furnish an example which supports our main result.

Coffee parchment as potential biofuel for cement industries of Ethiopia

Abstract: This study explores the biofuel potential of raw coffee parchment and its pellets to supplement the energy demand of the cement industries of Ethiopia by characterizing their combustion characteris...

Effects of storage duration and hydro-priming on seed germination and vigour of Common vetch

Abstract: The possibility for prolonged ambient seed storage, and the role of seed hydro-priming were studied in Common vetch (Vicia sativa L.) in the laboratory and greenhouse. Seeds stored for zero, one, two, and three years under ambient conditions at Kulumsa, Ethiopia, were soaked in distilled water for 24 h at 20±1°C and subsequently surface-dried at room temperature for ca. 6 h. Part of the seeds from the four storage durations was maintained unprimed, and was compared with hydro-primed seeds. Effects of ambient storage duration and hydro-priming, including their interactions, were significant (P<0.01) for all parameters considered. There was no significant reduction in germination percentage, speed of germination, and emergence index of seeds stored for up to two years, as compared to freshly harvested seeds. Despite its negative influence on germination percentage and some vigour parameters that depend on seed age, hydro-priming improved the speed of germination in all age groups, root length and Vigour Index-I of aged seed lots, and emergence index for zero and one-year storage duration. Therefore, Common vetch seeds can be stored under the ambient conditions of a tropical highland environment for about two years without significant loss in germination percentage and emergence index. The positive influences of hydro-priming on speed of germination and emergence index could be an opportunity to be considered in over-sowing studies with vetch on native pastures.