May 2024

Estimation of porosity and specific yield from vertical electrical sounding (VES) measurements in Anambra State, Southeastern Nigeria

Estimation of porosity and specific yield was carried out from Vertical Electrical Sounding (VES) measurements in Anambra State, Southeastern Nigeria. The study area lies within longitudes 06° 38I 00IIE and 007° 15I 00IIE and latitudes 05° 42I 00IIN and 006° 45I 00IIN with an area extent of about 4844 km2 (1870 ml2), underlain by formations within two geological basins. It falls within the Anambra River...

Author(s): Austin C. OKONKWO, Chidiebere H. NNAMANI, Anthonia N. NWOBODO, Ejiofor C. EZIKE, Chigozie I. AGANIGBO and Victor O. MBAH.  

June 2024

Effect of waste crumb rubber tyre as partial replacement of fine aggregates on fresh and hardened properties of concrete

Concrete has remained challenging to replace for an extended period due to its inherent strength and minimal maintenance needs over the lifespan of structures, coupled with its versatile applications in various infrastructure projects such as foundations, superstructures, and more. Additionally, concrete components, including fine crushed rock and river sand, are readily accessible in the environment. Recently, waste...

Author(s): Jonathan Uno and Khaled Marar  

June 2024

Modelling the geothermal potentials Energy of Abakaliki Lower Benue Trough Nigeria using Fourier transform of digital aeromagnetic data

Aeromagnetic data over part of the Abakaliki Lower Benue Trough has been evaluated to estimate the geothermal energy potential and model the morphology of the basin through assessing the depth to the magnetic basement and modeling prominent magnetic anomalous bodies. The data were acquired, analyzed, and interpreted. Qualitative analysis, using visual inspection of Total Magnetic Intensity (TMI), Residual Anomalous...

Author(s): Usman Ayatu Ojonugwa, Mbachu Victor Mmerichukwu, Okonkwo Churchii Chinonso, Chinwuko, Augustine Ifeanyi and Chizoba Chima Joshua  

June 2024

The nexus between land surface temperature and vegetation condition: The case of Addis Ababa, Ethiopia

Examining the spatial relationship of surface temperature and Normalized Difference Vegetation Index (NDVI) in the urban center helps to balance heat island effect and creates sustainable urban environment. This study identifies the relationship between vegetation condition and surface temperature of Addis Ababa over various land use/cover (LU/LC) types. For this purpose, Landsat 8 OLI and TIR sensor data which were...

Author(s): Dagnachew Sisay Chaka and Binyam Tesfaw Hailu