Dose-effect relationship on annoyance and sleep disturbances due to industrial and aircraft noise in Calabar, Cross River State, South-South Nigeria has been investigated.  The objectives of the work was to find a quantitative dose-response relationship on annoyance and sleep disturbance…

The zero band gap (Eg) graphene becomes narrow Eg semiconductor when graphene is patterned with periodic array of hexagonal shaped antidots, the resultant is the hexagonal Graphene Antidot Lattice (hGAL). Based on the number of atomic chains between antidots, hGALs…

In industrialized countries manufacturing firms are facing significant change resulting from mass customization, shortening product life cycles, increasing technological change, and the entry of international competitors into their markets as witnessed by the automotive and electronics industries. ‘Process Innovation’ is…

Modeling the dry compressive strength of sodium silicate bonded kaolin refractory bricks was studied. The materials used for this research work included refractory clay obtained from Ijero-Ekiti (7º 49´N and 5º 5´E) kaolin deposit, and sodium silicate obtained from the…

High pressure/High temperature operations remain a high challenge for the industry as deeper reservoir operations are pursued around the globe. In addition to deeper depths, an increasing number of wells are still being drilled and completed in much more hostile…

The study was about the development of Traffic Case Records Information System (TCRIS) that would ease storage and retrieval of traffic cases in the Traffic Department of the Uganda Police. The method used to manage traffic cases is manual; information…

This paper aims to set  a mechanism   in order to calculate the  economical  thickness of  thermal insulation layer of  external walls of cold storage plant  based on a comprehensive  techno-economic analysis  of  thermal insulation cost, in addition to the cost…

Maximum power point tracking (MPPT) techniques are used in photovoltaic (PV) systems to maximize the PV array output power by tracking continuously the maximum power point (MPP) which depends on panel’s temperature and on irradiance conditions. The issue of MPPT…

GT encompasses a continuously evolving group of methods or materials, from techniques for generating energy to non-toxic cleaning products. It is that innovation which reduces waste by changing patterns of production and consumption. It is also defined as environmental healing…

Poor postharvest storability of cassava roots has led farmers into leaving the tuber in-ground for a long time even after maturity thereby leading to lignifications. Besides, this practice has been reported to result in changes in the physiological structure of…