http://hdl.handle.net/123456789/571 2026-04-09T07:21:20Z 2026-04-09T07:21:20Z Shaibu, A. G Amuahb, E. E.Y. Kazapoe, R. W. Salifu, E. Dekongmen, B. W. http://hdl.handle.net/123456789/4589 2026-04-07T12:29:32Z 2023-01-01T00:00:00Z

Title: IMPACT OF SURFICIAL FACTORS ON GROUNDWATER QUALITY FOR IRRIGATION USING SPATIAL TECHNIQUES: EMERGING EVIDENCE FROM THE NORTHEAST REGION OF GHANA Authors: Shaibu, A. G; Amuahb, E. E.Y.; Kazapoe, R. W.; Salifu, E.; Dekongmen, B. W. Abstract: The need for quality water in Africa for agriculture cannot be overemphasized amidst the current global water crises. The focus of this study sought to evaluate the quality of groundwater for irrigation purposes while unearthing the emerging challenges in the study area. In total, 202 groundwater samples were collected, and several parameters were tested. The study employed QGIS and multi-criteria decision analysis to examine zones of suitable groundwater quality for agriculture. Findings from the study indicate that the primary water types were Na–HCO3 and Ca–HCO3. The overall accuracy (OV) of the land use land cover (LULC) map using the Random Forest (RF) algorithm was 94.5%. The analysis revealed that SpH influences GpH at p ¼ 0.02891 (p,0.05) and SOM and SOC influence GNO3 at p ¼0.044 (p,0.05). The overlay analysis spatially classified the groundwater in the study area into three categories of suitability with ariel coverage showing areas of good quality (1,534.34 km2), moderate quality (1,933.35 km2), and poor quality (1,815.21 km2). The results from this study uncovered that 72.33% of the samples were within the desirable limits and it can be concluded that the quality of groundwater in the area is acceptable for irrigation.

2023-01-01T00:00:00Z Abdul-Ganiyu, S.. Ishikawa, H. Apusiga, A.T. Kranjac-Berisavljevic, G. http://hdl.handle.net/123456789/4585 2026-04-07T11:40:58Z 2017-01-01T00:00:00Z

Title: EVALUATING BOREHOLE PERFORMANCE IN TOLON AND WA WEST DISTRICTS OF NORTHERN GHANA Authors: Abdul-Ganiyu, S..; Ishikawa, H.; Apusiga, A.T.; Kranjac-Berisavljevic, G. Abstract: Groundwater is a very important asset for many domestic and agricultural activities to the people of Northern Ghana, where majority are farmers. This research evaluated boreholes yields and transmissivity in Wa West (Baleofili) and Tolon Districts (Kpaligung) of Northern Ghana. Pumping tests, absolute and barometric pressures were monitored using non-vented water level sensors for one year (2015-2016). Results of the research indicate that the aquifer of the Kpaligung borehole is of Voltaian province while that of Baleofili is of Granitoid intrusions. The yield of the Baleofili borehole is 1.8 m3/h (30 l/min), while that of the Kpaligung borehole yields 1.4 m3/h (23 l/min). The Kpaligung borehole indicated gradual decrease in drawdown as pumping test went on, due to the borehole receiving recharge from the surrounding boreholes, as the cone of depression intercepted their aquifers. The transmissivity (T) value was therefore determined to be 0.5 m2/d. However, the Baleofili borehole shows gradual increase in drawdown, which indicates that the aquifer properties away from the borehole are poorer than those closer to the borehole. The transmissivity (T) value was therefore determined to be 0.8 m2/d. The yields of the two boreholes are enough for domestic water supply of the beneficiary communities. More intensive monitoring and data gathering efforts should be undertaken to understand the groundwater resources in northern Ghana especially geology, aquifer system, and flow patterns.

2017-01-01T00:00:00Z Faisal, A. http://hdl.handle.net/123456789/4377 2025-02-10T12:28:59Z 2021-01-01T00:00:00Z

Title: PENALIZED LOG-LIKELIHOOD ESTIMATION FOR COX-FRAILTY MODEL WITH NONINFORMATIVE BIVARIATE CURRENT STATUS DATA Authors: Faisal, A. Abstract: A Penalized Maximum Likelihood Estimation (PMLE) procedure is proposed for Cox proportional hazards frailty model with noninformative bivariate current status data. An integrated splines (I-splines) was used to approximate the two unknown baseline cumulative hazard functions of the failure times. The one-parameter gamma frailty distribution was used to model the correlation between the two failure times. An easy to implement computational algorithm is proposed to estimate the regression and splines parameters. Bayesian technique as proposed by Wahba (1983) was employed for the variance estimation. The statistical properties of the estimated parameters were studied through extensive simulation and it was observed that the PMLEs were consistent, asymptotically normal and efcient. In addition, the estimators were robust to the choice of knots, censoring rates and type of frailty distribution used. The proposed methodology is further demonstrated through the analysis of the tumorigenicity experiment data by Lindsey and Ryan (1994).

2021-01-01T00:00:00Z Abdul-Barik, A. Yussif, F. Bipembi, M. S. http://hdl.handle.net/123456789/4368 2025-02-10T11:36:51Z 2022-01-01T00:00:00Z

Title: DEPLOYMENT OF AN ENHANCED WEB-BASED REALLY SIMPLE SYNDICATION (RSS) AGGREGATOR Authors: Abdul-Barik, A.; Yussif, F.; Bipembi, M. S. Abstract: ABSTRACT There is too much information for consumption in the world, hence a struggle to keep ourselves up to date with new publications in our various fields of discipline and research interest. Information overload can be very frustrating, this can be prevented by utilizing tools/technologies that provide effective information management, of which Really Simple Syndication (RSS) software is an example. The system is developed with the use of Bootsratps (JavaScript (JS), Hypertext Mark-up Language (HTML), Cascading Style Sheet (CSS) for the system interface, php (a script language for coding the functionalities), and wamp server (apache, mysql, Hypertext Pre-processor (PHP)) as a development environment for apache, mysql and php databases.The proposed system allows users to subscribe to websites from which they can be frequently updated with information including audio and video, blog entries, news headlines, etc. The proposed system is designed to eliminate the user's requirement to manually monitor the website for new contents. Instead, the system continuously monitors the site and notifies users of any changes. The administrator portal is incorporated for the purposes of managing the content available in the system. The system manages all the contents that the user subscribes to and the user receives updates as and when they sign-in. This saves time and helps with quick access to published or available information.

2022-01-01T00:00:00Z