World Journal of Science, Technology and Sustainable Development: Volume 7 Issue 4

Systems of innovations as a conceptual framework for studying the emergence of national renewable energy industries

Yasser M. Al‐Saleh

This conceptual paper articulates an analytical framework, which collectively borrows from the concepts of Sectoral, National and Technological Innovation Systems, for examining…

Educational communication uses short messaging services by students in Nigerian universities

Williams E. Nwagwu

A questionnaire was used to collect data from 1676 undergraduate and postgraduate students randomly selected from three major Nigerian universities to understand how media…

Modelling motorcycle emissions and driving cycle in Edinburgh

Ravindra Kumar, Wafaa Saleh, Colin Bosewell

This paper explains the modelling of emission in real world onboard measurement under local driving condition for engine size 1000cc and 600cc for motorcycles in Edinburgh. Impact…

Continuous and discrete wavelet transforms based analysis of weather data of North Western Region of Saudi Arabia

Mohamed A. El‐Gebeily, Shafiqur Rehman, Luai M. Al‐Hadhrami, Jaafar AlMutawa

The present study utilizes daily mean time series of meteorological parameters (air temperature, relative humidity, barometric pressure and wind speed) and daily totals of…

Diet of the spotted hyena (Curocuta curocuta) in southern Tigray, northern Ethiopia

Gidey Yirga, Hans Bauer

The diet of spotted hyenas (Curocuta curocuta) was studied in Endrta Woreda, southern Tigray, Ethiopia from September to December 2009. Hyena scats were collected throughout the…