Science, Technology, Engineering and Mathematics (STEM)

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A cash and token paid entertainment content streaming site
(2020) Munyao, Angela Musangi
People that cannot afford subscription to paid and ad-free media hosting sites always have to deal with random and un-seamless popping up of ads as they browse, while viewing content on free media hosting sites, and mostly, these free media hosting sites lack current content such as recently released movies or songs. The solution proposed in this paper is a cash and token paid entertainment content streaming site with undisruptive ad hosting. In this site, users can access up to date content (songs, movies, comedy clips, and TV Shows), all they need to do is pay for the content in tokens, and they obtain the tokens by either converting their cash into tokens, or by watching ads hosted on a specified page within the site (Users can make a choice to visit this ads page or not, and hence do not incur random popping up of ads while browsing). The aim of the solution is to accommodate users that cannot afford money-paid media hosting sites but desire to watch up to date content with minimum or no disruption from ads, and it achieves so by creating a fair playing field between ad-owners and content viewers by sharing some of the revenue generated from hosting ads with the ad-viewers.
A credit scoring system for mobile money users: A case study of Berekuso, Ghana
(2020) Melly, Viola Cheptanui
An estimated five billion people in the world own a mobile phone [11]. Among these people, an estimated four hundred and fifty-six million people are from Africa, with eight million people being from Ghana [11]. The high number of mobile phone owners shows the importance attached to the use of mobile phones. The curiosity and the availability of resources to develop new applications have led developers to come up with new and innovative ways that go beyond the primary intention for which the phone was created: communicating with one another. One such innovation is the development of mobile money services [17]. This research seeks to find out how effective a credit scoring system would be in addressing the non-payment of loans by the customers of service providers. It proposes an online platform that provides users with financially related information and a credit scoring system that can help both lenders and borrowers check the creditworthiness of an individual before they get access to loans.
A customized mobile health appointment booking application for Gamma Health Consult Limited, Ghana
(2021-05) Dewortor, Yvonne
According to research undertaken by Gamma Health Center (GHC), the geriatric (elderly) most at times become a burden for most working families as they must be catered for and sent to the hospital for regular routine checks, especially in situations where they have special health concerns. It becomes more challenging for such working guardians who may have to spend virtually all day or most of their working hours at the hospital with their elderly relatives for just a routine medical check-up. With the advancement in medical care and technology, and especially with a shift to preventive medicine, the geriatric population is expected to increase and with most families becoming a part of the working-class society, this will pose a serious problem in the society and the health sector as well. This project seeks to solve this problem by developing a web and mobile application for doctors and guardians or caretakers of geriatrics to help save their time by allowing them to schedule appointments for the routine checkup of their geriatric relatives.
A data management platform and bulk SMS program for the Ritzz Exclusive Guest House
(2020) Hijazi, Mohamed
Businesses are using technology to gain a competitive advantage over players in their respective industries. The Ritzz Exclusive Guest House, a hospitality business in Ghana, needed an application that would integrate into its existing processes and enable it to communicate with their Ghanaian based clients to increase customer loyalty. This project proposes a two-in-one application, Bulker. The proposed solution will enable the guest house to send text messages to its local clients and allow them to receive responses in a cost-effective and user-friendly way.
A descriptive study on the application of project management tools in organizations in Ghana
(2020) Gyapong, Yaa Korang
The introduction of project management tool into firms have catalyzed tremendous increases in the success rates of projects worldwide. The six key processes; Initiation, Planning, Execution, Monitoring, Controlling and Closing, that ensure the effective implementation of all projects have proven time and again to be one of the best guidelines in achieving this feat. Over time, various groups have postulated theories and developed tools that aim to ensure the effective execution of each of these six stages. These tools advanced efficiencies in completing projects, maximize limited resources such as time, human and capital resources, as well as gain a high reputation and standings in society for completing projects [5]. Although these tools in isolation have aided project managers in successfully meeting the triple constraints of time, scope and quality, there still begs a need to push for the practice and use of project management tools in a more deliberate way, that will guide agile project managing companies to achieve their goals. In Ghana today, there is a grave lacking in project management professionalism which has heavily impacted the way projects are executed and managed. McKinsey Digital suggests project cost overruns of about 45% with 56% less value output than expected in large IT firms across the world [1]. This study aims at exploring other implications of and various benefits associated with the use of project management tools in Ghana. I believe that there needs to be a holistic understanding of and presentation of these tools in a manner that best suits the Ghanaian context and culture to ensure that projects are executed professionally. Furthermore I aim at developing a model framework of a holistic project management tool that addresses and guides the six key stages of a project to achieve project success and reduce the level of project failure in Ghana.
A facilities management system utilizing the application of three-dimensional models for Ashesi University
(2020) Armo-Himbson, Samuel Kofi Ntaama
The act of maintenance is a critical factor in ensuring that the lifespan and efficiency of an object or a structure are maintained. Likewise, it is of much importance that organizations continuously pay close attention to the conditions of the environment in which their operations run. To attain maximum efficiency, every equipment that comprises a given environment must be appropriately maintained or taken care of. The field of facility management is a very well established one and utilized in various levels of organizations ranging from recreation centers to office complexes and even academic institutions. Facility Managers ensure that resources and assets acquired are appropriately looked after and periodically maintained. This paper gives a walkthrough of a facility management system for Ashesi University. The system is designed to be a digital implementation of processes involved in managing facilities from the stage of reporting to assigning duties to respective parties for reparations. The adoption of the use of a three-dimensional modeling tool enables users to have a realistic feel of the school environment hence making it easier to make adequate reports consideration the exact location and type of fault. The main tools utilized in the development of the system include HTML, PHP, CSS, JavaScript, MySQL, and three.js, which is a JavaScript library for SD modeling. This project is intending to revolutionize the field of facility management, making it more inclined towards a digital representation.
A free web application for the Ghanaian real-estate market
(2021-05) Odum, Kweku Amankwa
Technology has had a significant impact on the world and revolutionized all its industries. The real-estate industry has incorporated technology in its activities by using the internet and services like social media, web applications, and websites to ease accessibility and widen the reach of advertisements. The steady growth of Ghana's real estate industry has seen a rise in online property advertisements. This move online has introduced some challenges in terms of the propriety of online advertising mediums. As a primary advertising medium, social media ensures a broad reach, but competition from other content is likely to stifle engagements if you are not a recognized brand. Web applications and websites will be the ideal alternatives, but most of the existing ones are poorly managed; layouts are rough, content has disparities and advertisers are charged exorbitant fees. This project aims to create a web application that will aid Ghana's real-estate industry in an advertisement without worrying about efficiency and expenses. The web application will be developed using HTML, CSS, JavaScript, PHP, and SQL.
A portable and low-cost electroencephalography device with automated autism diagnosis
(2021-05) Lormenyo, Hannah Boadiwaa
Autism Spectrum Disorder (ASD) is a neurodevelopmental disorder characterized by challenges in speech and communication, impairment in social skills, and repetitive behavior. Autistic children in Africa have very severe symptoms of autism due to the lateness in the diagnosis and treatment of autism on the continent. This work explores the use of a portable, low-cost electroencephalography (EEG) device with automated diagnosis as a means of expediting the process of autism diagnosis in Africa. This work compares two instrumentation amplifier designs for the EEG system. It also compares k-nearest neighbor, support vector machine, decision tree, and random forest as classifiers for providing automated diagnosis for the EEG system. The resulting design was a portable EEG system that can be interfaced with a smartphone for real-time visualization of the EEG signals and automated diagnosis with an accuracy of 85.1%.
A small photovoltaic inverter for grid-connected operation
(2020) Oburu, David Katandi
Solar energy being one of the most promising renewable resources, plays a very significant role in the energy sector of different economies in the world. However, the photovoltaic (PV) system still faces some challenges such as high costs, low efficiency and the photovoltaic (PV) system’s output power intermittent nature as compared to other renewable technologies. This project focuses on three key areas of PV grid-connected inverter control strategies that is the PV Maximum Power Point Tracking (MPPT) using perturb and observe technique, the PV gridconnected Synchronization technique using phase-locked loop (PLL) and PV inverter control using proportionate-integral (PI) technique to control the voltage and the current of the PV gridconnected inverter. The control techniques operate in such a way that during the grid-connected mode, the PV inverter output frequency and the amplitude is controlled by the grid and the inverter operates in a current-controlled mode. The inverter current-controlled mode of operation achieves two requirements that is, the excess energy generated from the PV inverter is transmitted to the grid under no overload condition. During unfavorable weather conditions or overload conditions, both the grid and the PV inverter operate in a voltage-controlled mode in order to maintain a constant frequency and amplitude of the voltage across the load. Simulations in MATLAB/SIMULINK have been used to verify the validity of the proposed system.
A web based application with numberous functionalities to support activities of African Polistas in Ghana
(2020) Issah, Sadat
Technology has become a core part of most businesses both in the formal and informal sectors. Businesses are leveraging on the potency of technology to improve processes and increase revenue. African Polistas is a polo club here in Ghana having a branch in South Africa, USA and other parts of the world. Currently the club does not have an online presence making it difficult to connect with its members and reach out to prospective members as well. Due to its absence online, the club is unable to sell its merchandise to a wider market. This project focuses on building a web-based application for African Polistas to give it an online presence. Among the features of the application are; e-commerce platform, a chatbot, community chat platform, service subscription and membership registration services. The e-commerce platform is to enable the club make sales of its merchandise online and reach a wider market. The community chat forum is to connect all members of the club so they can network and know each other. The club offers horse riding school services, tourism services, takes part in polo tournaments; registered members of the club should be able to sign up for these services.
A web-based remote medical assistant for the mobility impaired and aged in Accra - Rhema Rapha Medical Center
(2021-05) Anang, Pamela
This 'MediCare' project is centered on discovering telemedicine devices in Ghana and their implementation and use within the Ghanaian setting. The user needs assessment conducted at the beginning of this project was used to uncover system functional and non-functional requirements and benchmark the implementation of a system that contributes to the fulfillment of SDG 3; good health and well-being by promoting remote medical care. Since the COVID-19 pandemic placed a strict restriction on movement to and from medical facilities, the implementation of MediCare sought to offer patients, precisely the mobility impaired and aged who are most vulnerable in society, a way to receive medical care from the comfort of their homes. This system was designed for Rhema Rapha Medical Center located in the Tse Addo community of Accra due to their desire for a telemedicine devise that facilitates health consultation virtually and their patient demographic ranging from the middle to upper-class population of Ghana. This patient demographic is likely to have a more significant percentage consisting of the aged and mobility impaired. The results of this indicate a 100% desire for the deployment of this system for Rhema Rapha Medical Center and 88.2% achievement of functional requirements identified at the beginning of the user needs assessment
Active cancellation of noise in acoustic signals
(2020-05) Yirenkyi, Otema
In the acoustic domain, sources of noise can be derived from music, vibration from an engine or a person shouting. There has been a rise in different technologies to combat the problem of noise. Passive techniques such as using soundproof materials have been developed, however they pose the challenge of weight from the bulky materials used. Active noise cancellation techniques although requiring complex computation, can cancel noise up to 50 decibels (dB), depending on the efficiency of the technology or algorithm used. In this project, an active noise cancellation device which has the capability of cancelling surrounding sound has been built using the filtered NLMS algorithm in a digital signal processor to create a region of silence. It is based on the principle of Destructive Interference. It is a more affordable rendition of existing products on the market which incorporate these same principles.
Adaptive credit card fraud prediction using Artificial Neural Network
(2020-05) Abdul-Aziz, Juliet Fatima
Currently, there is a growth in online transactions which has led to the immerse growth of the number of credit card fraud. A lot more people are opting to shop online due to convenience and therefore they make online payments to make a purchase that would be delivered to them and in some cases, they make payments online for a service rendered to them. With such an opportunity, fraudsters are also increasing their fraud activities online. Therefore, this study seeks to detect credit card fraud using an adaptive tool and also attempts to reduce the number of wrongly predicted valid transactions made by the model. Researchers have used tools such as K-nearest neighbour, logistic regression, random forest, decision trees and others however, this study uses an autoencoder neural network to detect credit card fraud. The study then evaluates the model using an appropriate evaluation metric. Keywords: Fraud detection, adaptable, autoencoder neural network, credit card, online transactions
An affordable density-based traffic management system
(2019) Odero, Margaret Anyango
Traffic management systems at road intersections of most African cities is based on fixed timings where equal length of green light is assigned to each lane at the intersection. This method of traffic management is inefficient because it causes unnecessarily long waiting times for vehicles at the intersections especially during periods when some lanes have few or no vehicles passing through them. In this project, an affordable density based traffic management system is designed and implemented. This is achieved by selecting components that are low cost, consume low amounts of power and do not require digging onto the road pavements. A pi camera with night vision capability is used as the vehicle detection device for every lane. Image processing is then done using an algorithm running on a raspberry pi to determine the number of vehicles on each lane. This information on the number of vehicles is sent to a central raspberry pi via a radio transceiver which then uses an algorithm to determine the next lane to receive green light, as well as the green light duration. In testing the system, the best position of the camera relative to the lane is investigated in an experiment. The furthest distance the camera can be mounted is determined to be 30m. The night vision capability of the camera is also tested. Despite the advantages that come with this low-cost system, it has some limitations. The camera quality is low hence the image processing algorithm may not be completely accurate in distinguishing between objects in the image. The camera’s field of view is also small, necessitating the use of an extra lens that will increase its field of view.
Affordable desktop computing using low end hardware like Raspberry Pi and Cubiebaord NII LOUS NELSON
(2014-04) Nelson, Nii Louis
The field of computer science over the past two decades has witnessed a huge leap in the areas of improved systems design, hardware processing power and the development of software that maximizes these advances in systems. This leap can attributed to continuous innovation that drives the field to new heights at an ever speedy pace. The pace at which the field is growing requires educators to be abreast with new and changing technology. It is the desire of educators to have access to physical laboratories and computing centers in which they can physically train students. The challenge faced by educators in executing this task is the high expense that comes with the construction of physical laboratories. This write up stems from a project that aims to tackle this challenge by providing low powered, low cost, portable computing systems for students, laboratories and computing centers using devices such as the Raspberry pi and Cubieboard. Although not a perfect system, it promises to be a desirable solution that can be adopted across a wide range of institutions.
Affordable digital guitar effects pedal for local guitarists.
(Ashesi University, 2019-04) Hazel, Victor
Music has been a mode of communication and a source of identity for many cultures, especially in Africa. The sound from the guitar is one of the many components that make up music, The electric guitar is a musical instrument, usually made up of six strings which is connected to amplifiers to produce sound. Technological advancement has led to the creation of Guitar effects pedals. However, manufacturers keep making new models of guitar effects pedals with a continuous increasse in cost. It is therefore difficult for low-income young guitarists to have access to guitar effects pedals. This project seeks to use a general purpose microcontroller to create a very affordable guitar effects pedal.
Affordable digitisation of analog marine systems for bilharzia control
(2021-05) Aryeh, Mario
The Internet remains the world's largest source of information today. It has been through stages of reforms to enhance usability and connected functions. IoT according to Kumar and Rahim is a system of related sensors, computing and digital devices spread across the globe over the internet which can communicate amongst them to share and transfer information using a unique id which is assigned to each and every device. The paper describes the design and development of an IoT based water quality and salinity level monitoring instrument and its integration to a Bilharzia control system comprising of abandoned boats which have gone through refurbishment. The research work implements a unique approach by recycling prototypes of abandoned boats to be used as Anti-Bilharzia active chemical dispersers. This system can be adopted by agencies trying to fight water borne diseases.
Affordable smart refrigeration for professionals
(2020-05) Dadzie, Ewuradjoa
Internet of Things is a growing industry all around the world, in which numerous applications and innovations are being made, smart home automation being one of them. In Ghana, the traction or adoption of these technologies is low, because of the cost and ineffectiveness associated with appliances such as a smart refrigerator. The aim of this project is to design a system that accounts for the ineffectiveness of current smart models, and economizes on the cost of creating such a system. Various parts of such a system were individually simulated and tested, using sensors, NodeMCU, a Raspberry Pi, and a Raspberry Pi camera. Web and mobile applications were built to interact with the user. Each system part was successfully simulated; however, the system could not be tested as a whole, due to modifications that had to be made while simulating. It was realized that with the implementation done the objectives of the project would be achieved if properly deployed. The impact of the work done would increase traction and adoption of smart refrigeration in Ghana as it would be more affordable and more relevant to the Ghanaian context.
Affordable solutions for computers in schools: Operating system and tools on a USB flash drive
(2014-04) Agoe-Ashiakwei, Ebenezer
Over the past few years, there have been numerous developments of more efficient and portable ways of using computers. Hardware and storage have been designed to provide progressively smaller systems for computing while speed and data performance has greatly increased. The purpose of this project is to provide a complete Operating System and tools on a USB flash drive. This is done with the aim of providing users with a much more portable, durable and affordable outlook to computing. Users can also share or reuse the same hardware while keeping their operating systems and data separate. This project is necessary as other options require people to have and carry their own hardware, or rely strictly on the operating systems preinstalled on existing machines. Customers have preference for portable and cost-effective devices, while administrators want to simplify asset management. Overall, this project offers a new outlook on using IT hardware while bringing choice and convenience to end users.
Age estimation using biometric features among the black race
(2020) Asiedu, Berlinda
The estimation of a person’s age based on their face is usually done effortlessly by humans based on their intuition. However, age estimation from facial images has become one of the biggest challenges in the area of face recognition. This challenge is mainly due to the unavailability, underrepresentation and different forms of data that are used in training age estimation models. Data as a relevant component of artificial intelligence is key to the efficiency of age estimation models as well. An underrepresentation of face images belonging to people of the black race has raised concerns on algorithm biasedness and inaccuracies. With the motivation to rule out this biasedness, this study undergoes a data collection of face images of the black race, creating training and testing datasets for the proposed model. A hybrid KNN Classifier and Support Vector Regression (SVR) model approach is presented for age estimation using face images of the black race. The results of another hybrid model is compared to the KNN-SVR model on three datasets. It is concluded that the KNN-SVR fusion produces a highest accuracy on the newly created dataset.

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