Abstract Nanocomposite hydrogels of poly-n-isopropyl were prepared by incorporating gold and magnetite nanoparticles. The nanocomposite-based hydrogels formed were geometrical, ~7.3 mm in diameter and 5 mm thick (in the swollen state). Morphological analysis was characterized by a scanning electron microscope. Drug-loaded hydrogels were subjected to laser heating at 1 W, 1.5 W and 2 W for 20 min in each laser cycle. The metabolic activities of the cells were analysed. The photothermal convers...
Abstract Road construction typically confers significant benefits on the population the road serves. A recent rapid growth of urban residential areas in Ghana has necessitated the construction and rehabilitation of the roads linking these urban areas to major commercial towns in the country. The Kwabenya (Abuom) to Kitase area, straddling Ghana’s Eastern and Greater Accra regions, is a typical example. Using both primary and secondary data sources, the research reveals that agricultural pro...
Abstract This paper presents a recent study on recycling poly-ethylene-tetraphylate (PET), known as plastic waste material in Ghana, to wealth. Composites were produced by heating aggregates together with shredded PET plastic waste material, while bitumen was added to the plasticcoated aggregates. The composites produced were reinforced with 4.5 wt%, 9.0 wt%, 13.6 wt%, and 18.0 wt% PET. Mechanical properties of the fabricated composite samples were studied with a Universal testing machine for...
Abstract This work involves the design and development of a digital signal detector which is capable of detecting incoming and outgoing signals from mobile phones. The presence of an activated mobile phone can be detected by this handy, pocket-size mobile signal detector from a distance of one and a half meters, which could be used in preventing the use of mobile phones in examination halls, classrooms, confidential rooms etc. The circuit can detect the incoming and outgoing calls, tex...
ABSTRACT The objective of this study was to examine the portrayal of women in local and multinational brands’ advertisements in Ghana while drawing a comparison between the two. The study is underpinned by the frame analysis theory and uses qualitative content analysis to determine the portrayal of women in advertisements shown on Ghanaian television between 2011-2016. Literature suggests that advertisers enlist social frames in ads so that their audience can relate to the message of the ad...
Abstract Detection and Prevention of Man-In-The-Middle Spoofing Attacks in MANETs Using Predictive Techniques in Artificial Neural Networks (ANN) A Mobile Ad-Hoc Network (MANET) is a convenient wireless infrastructure which presents many advantages in network settings. There are however a lot of challenges faced on such networks; with their relatively much more flexible setups. They are comparatively more susceptible to attacks of various kinds as opposed to their wired cousins. This is due t...
ABSTRACT Agriculture, its operations, and soils properties are inter-related. Cultivation of crops; tillage, irrigation and farm operations, commuting to and from farm plot and building of structures are greatly influenced by the soil specifically its properties. Shear stress, cohesion and angle of friction are parameters that play major roles in influencing how soils are used or worked on. It is, therefore, important to determine the shear stress, cohesion and angle of friction of the soils ...
ABSTRACT The One Laptop Per Child project has succeeded in developing a novel computer that is tailored to the particular needs of the developing world. The use of this example of a modern computer systems design challenge can be a valuable case study as a teaching tool in computer science. The OLPC laptop is a multiple-purpose computer that is rugged, low-cost, low-power, mesh networked, and inexpensive. An overview of the technology in the laptops is given, as well as curricula suggestions ...
Abstract Human Computer Interaction now focuses more on being able to relate to human emotions. Recognizing human emotions from speech is an area that a lot of research is being done into with the rise of robots and Virtual reality. In this paper, emotion recognition from speech is done in MATLAB. Feature extraction is done based on the pitch and 13 MFCCs of the audio files. Two classification methods are used and compared to determine the one with the highest accuracy for the data set.
Abstract The project proposed a method of reading individual energy consumption by tenants living in a compound house but share a single meter. The smart energy monitor was designed using ATmega8, SIM800l, PZEM004T, I2C LCD ,SCT-013-000 current sensor. The smart energy monitor solves the problem of bill sharing in compound house that share one meter. The printed circuit board was design ed using Eagle and the program for the system was programmed in the Arduino IDE in c language in Arduino sy...
Abstract Accessing remote health care from public hospitals in Ghana has become more difficult and expensive recently due to the increasing number of patients that surpass the low number of doctors in the country. Many people have lost their lives waiting in long vital checking lines just to take their vitals in some hospitals. However, with the help of the Internet of Things (IoT), this report provides a design of a low-cost remote health monitoring system for patients with chronic diseases ...
Abstract Waste management is a raising concern faced by many nations in the world today. On the streets of major cities, it has become almost common to find waste which poses health hazards and other concerns to its communities and inhabitants. This project focuses on the use of smart systems and the Internet of Things (IOT), to provide an efficient and effective approach to waste management. This project designed and manufactured a prototype of a solar powered, self-compacting smart bin with...
ABSTRACT This paper explores the current flaws of the undergraduate syllabi treating Industrial Automation and Control. It elaborates on the disparities between the current syllabi and what is used in Industry; particularly the current trend of Industrial Automation. It looks at the effect of not meeting this trend in Industry and thus offers a solution in the form of another curriculum, which incorporates concepts of Industrial Automation 4.0 which are necessary for the workplace. It uses th...
Abstract Aquatic search and rescue in Ghana and most parts of the world poses lots of disadvantages to the rescuers. Divers being tasked for each search and rescue mission risk their lives trying to locate a body or an object underwater. Sometimes, these divers are attacked by aquatic animals or even hit by submersible objects. This approach is also problematic since divers are not able to stay longer under water due to fixed oxygen tanks. This limits their search periods as they ought to res...
Abstract Industrial accidents are on the rise. This fact is even more prevalent in developing countries where the countries lack the safety standards required to ensure workplace safety in the pursuit of economic development. As land in prime locations becomes increasingly scarce, there is an argument for building skyscrapers. But this just creates a new workforce that are subject to the horrific dangers of cleaning glass panels at heights well above the ground. In this applied project, I des...