ABSTRACT Majority of small scale farmers and homes are still using open-sun and/or non-convective methods for drying due to either high cost of gas/electric dryer or lack of electricity in their locations. These methods are time consuming and exposed the products to rain and contamination. A maintenancefriendly and properly enclosed dryer is therefore desired. The batch kerosene heated dryer was studied and adapted to suit the need of these people. In this work, the heat and mass transfer an...
ABSTRACT Asynchronous Transfer Mode (ATM) technology is the transfer mode for implementing a Broadband-Integrated Services Digital Network (B-ISDN). ATM defines multiplexing and switching techniques for broadband signals. Synchronous Optical Network (SONET) is employed in the B-ISDN backbone. The main objective of an ATM is to guarantee Quality of Service (QoS) in transfer of cell streams across networks. This technology recommended as the transport vehicle for the B-ISDN offers a great fl...
Abstract The primary objective of this study was to investigate the rank importance or most significant motivating factors on construction employees in South-South Nigeria. The research method for the study included a literature review and field survey. A sample population was selected from the target location. The findings indicated that the construction workers’ top five (5) motivation factors were: leadership, supervisor’s loyalty to employees, good salary, goalsetting, and good worki...
ABSTRACT Over the last few years, there has been mounting concern about the possibility of adverse health effects resulting from exposure to radio-frequency electromagnetic fields. Such emissions from wireless communication devices like mobile phones. Since then, researchers, scientists, and other professionals have issued many reports that prove either a correlation between radiations emitted by mobile phones and health related hazards (cancer, reproduction, car accidents etc) exists or do...
ABSTRACT The assumed deflection shapes used in the approximate methods such asin the Rayleigh–Ritz method were normally formulated by inspection andsometimes by trial and error, until recently, when a systematic method ofconstructing such a function in the form of characteristic orthogonal polynomials(COPs) was developed in 1985. However, vibrational analyses of plates with all edges free or clamped are much more complicated. This project aims at establishing particular expressions for the...
ABSTRACT Biomass Briquetting can address waste problems, reduce air pollution from direct open air burning and also reduce dependence on fossil fuels for heat generation. Dry leaves have been shown to have high calorific values; therefore the purpose of this study is to determine the effects of some binders on the physical and combustion properties of dried leaves briquettes. Dried leaves were mixed with binders such as clay, starch and Arabic gum separately at different ratios of 10%, 20%, ...
ABSTRACT This study investigated the influence of mud channel characteristics on real-time data logging while drilling. Drill string bore filled with flowing mud as the data transmission medium in mud pulse telemetry can have significant changes in its properties as a result of mud type (waterbased mud or oil-based mud) which selection depends on the formation being drilled and depth penetrated. Logging data are transmitted to the surface modulated onto pressure pulses which amplitudes are g...
ABSTRACT Analysis of plane truss structures based on the assumptions that (1) members are connected at joints by frictionless pins and (2) loads are applied at joints only have become a norm not minding the facts that our practical trusses are always constructed by connecting members to gusset plates by welds, rivets, or high-strength bolts and loads may not necessarily be applied only at the nodes, have made such assumptions not to yield quite precise results. By the nature of practica...
ABSTRACT Solar cells based on ITO/InP have been shown to possess a remarkable potential for space applications. The determination of the terrestrial and simulated-space stability of any type of solar cell is important in obtaining the payload power requirements of a spacecraft which will be powered by that type of cell. In this work, a preliminary investigation of the terrestrial stability of ITO/InP cells has been performed. The cells were stored in the dark for six months in thermostaticall...
ABSTRACT The development and utilization of energy has led to environmental degradation with associated health hazard. Hence the trust of this project is to optimize energy mix in a reliable, affordable, available, safe, efficient, effective and sustainable way at control cost subject to environmental constraints. In other to achieve the desired goal, optimization model is derived with unit cost of each of the various energy sources as the objective function and environmental impact as const...
Abstract Reliable electricity supply is essential for development. As a result, demand for electricity has continued to increase globally, occasioned by the fact that electricity is highly portable and can be transformed from one form to another to meet needs. In Nigeria and most developing countries, electricity supply from the public utility is not only insufficient but highly erratic. The effect of this is adverse on critical and sensitive infrastructure that depend on uninterrupted power...
Abstract Torsional vibration in Internal Combustion Engines is an important phenomenon occurs due to excitation loads, cycle-to-cycle variations results from the force the burnt gases and to change in inerita forces generated by reciprocating parts during convertoin of rotary motion to the linear one . This conversion leads to twist torque on the crankshaft which, in turn, leads to high stresses causing its damage. The importance of the present study stem from the fact that this phenomenon c...
ABSTRACT Blind people daily encounter many difficulties such as walking on the road, finding right path. In this project the interactive cane comes as a solution to enable them to identify the world around by integrate the traditional white cane with circuit consisting of microcontroller and ultrasonic sensors to detect obstacles ( forward ,above knee ) and pits .In addition there is water sensor to detect water on the ground. The result of ultrasonic sensors is alarm with different rings fo...
ABSTRACT Heart Rate Variability (HRV) Represent one of the most promising markers which represent anon invasive way of measuring autonomic nervous system(ANS), it describes the variation over time of both instantaneous heart rate and the interval between consecutive heart beats. Previously traditional methods had been used for calculating heart beat as using hand with time , and after the appearance of the new method and devices those depend on computer program the HRV analysis become more ea...
ABSTRACT Businesses (Manufacturing, Merchandising or Service Delivery) have similar organizational structures like Administration, Human Resources, Marketing, Accounting and Customer Care/Public Relations. Stand alone software products have been developed to enhance operations in each of these business. The business management system software developed in this project is aimed at integrating these software products into a single system that will provide solution to different management...