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An intelligent e-learning system to promote an inclusive classroom experience for deaf and hard of hearing students in a Ghanaian university
Full text linkUndergraduate thesis submitted to the Department of Computer Science and Information Systems, Ashesi University, in partial fulfillment of Bachelor of Science degree in Computer Science, May 2022Millions of persons with disabilities living in low-income countries cannot access either
primary, secondary, or tertiary education due to the lack of infrastructure, digital tools, and
devices that promote inclusive learning. According to a definition given by UNESCO, "inclusive education means includent student with disabilities in the mainstream school
environment" [33]. This research addresses the project them of developing an intelligent
learning system to enhance an inclusive classroom experience for Deaf/Hard of Hearing
students (D/HH) in a Ghanaian university. The aim of this research is to identify how an Elearning
system can improve the English abilities of Deaf students in a tertiary institution which is in line with the mandate of the fourth Sustainable Development Goal (S.D.G.4) of "Quality Education for all". Data is collected from primary sources through surveys and focus groups
with identified D/HH students, School Administrators, and teachers of D/HH students. The paper answers the research question
"How can an E-learning system support an inclusive
classroom experience for D/HH students in a Ghanaian university?" The results of this research will shape how an E-learning system can be adopted to support inclusive education in various tertiary institutions across Ghana.Ashesi Universit
Islanding detection and control in wind-solar hybrid distributed generations
Full text linkCapstone Project submitted to the Department of Engineering, Ashesi University in partial fulfillment of the requirements for the award of Bachelor of Science degree in Electrical and Electronic Engineering, May 2022As electricity demand surges in most developing countries, there is a need to tap into
other sources of energy. Renewable energy sources are mostly preferred due to their reduced
environmental pollution compared to other sources. However, integrating the renewable
sources is challenged by islanding: one of the serious issues with distributed generation
(DG) integrations. Islanding occurs when a DG becomes electrically isolated from the main
grid but continues to power the local loads or a portion of the power system. Voltages,
frequencies, third harmonic distortions, and currents are always outside of specified limits
in such situations. This poses a significant risk to utility workers as well as local loads. This
project examines various anti-islanding (AI) protection relays when the islanding condition
of a grid-tied wind-solar hybrid system appears at the Point of Common Coupling (PCC)
between the hybrid Power System and the power grid. 150 kW wind-solar hybrid
distributed generation was designed and modelled in Simulink for study. Various grid fault
scenarios were also simulated, and the results compared to islanding conditions. The
simulation graphs and detection times during grid faults and islanding conditions are
recorded in this paper.
The results show that, the passive detection techniques, mainly over/under currents,
and voltages as well as rate of change of frequency, could detect islanding condition in about
0.104 seconds. Upon several iterations and series of simulations, the results were found to
fall within the acceptable limits provided by IEEE Std.1547-2003 of under 2 seconds. For a
single-phase-ground, phase-phase, and phase-phase-ground grid faults, the detection
technique detects islanding but fails to trip the circuit breaker. The inability of the detection
techniques to trip the circuit breakers under grid fault conditions is desirable to avoid false
tripping. Various explanations and recommendations are provided in the results section.Ashesi Universit
Hydroponics implemented with Internet of Things
Full text linkCapstone Project submitted to the Department of Engineering, Ashesi University in partial fulfillment of the requirements for the award of Bachelor of Science degree in Electrical and Electronic Engineering (Gyamerah) and Computer Engineering (Adjei), May 2022Smart agriculture uses the Internet of Things (IoT) and data technologies to increase operational efficiency and productivity. This paper describes an efficient method for monitoring and controlling environmental conditions in a hydroponic system utilizing sensors, actuators, and microcontrollers. This project integrates and networks multiple monitoring systems over Bluetooth and Wi-Fi and aggregates the data in a cloud database. A mobile application to monitor and control elements in the IoT system was also built.Ashesi Universit
Design of Internet of Things (IoT) based wearable electrocardiogram
No full textCapstone Project submitted to the Department of Engineering, Ashesi University in partial fulfillment of the requirements for the award of Bachelor of Science degree in Electrical and Electronic Engineering, May 2022An electrocardiogram is a recording of the electrical activity of the heart. It is a crucial technology for the early detection and diagnosis of heart-related issues such as heart arrhythmia and other abnormalities in the heart. Most ECG machines, both the handheld single lead devices and standard 12 lead ECGs found in hospitals make use of adhesive gel electrodes which are uncomfortable for long periods among other issues. These devices are also quite expensive for the average Ghanaian. The standard ECGs found in hospitals also lack remote capability and the ability to transfer and store results instantly over the internet. This project explores the design of a wearable, low-cost, IoT device that will cater to each of these limitations. Textile electrodes sewn into a shirt are used in place of the gel electrodes to avoid irritability and the wearing off of electrodes in long-term usage. A design based on a low-cost microcontroller, the esp8266 together with other circuit components, is employed to ensure the system is affordable and has remote capability. Digital processing techniques are also implemented both in real-time and through post-processing in MATLAB to provide means of processing the signal from the electrodes.Ashesi Universit
Design of an automatic meal-sispenser for household dogs
No full textCapstone Project submitted to the Department of Engineering, Ashesi University in partial fulfillment of the requirements for the award of Bachelor of Science degree in Electrical and Electronic Engineering, May 2022Pet popularity has increased in recent years. Predominant among these pets are dogs, and they serve as a means of companionship and security. These domesticated dogs have become key members of numberous familiers, both locally and globally. It is estimated that about 95% of dog owners, consider their pets a member of the family. This statement is appreciated when one considers the extensive care and attention, given to these furry creatures. Averagely, dogs must be fed twice a day - although a three-square meal is equally a great option. In 2020, Americans collectively spent $38.4 billion on dog food - a testament to the lengths people will go, to ensure optimum pet nourishment. Pets must also be given monthly tablets to fight off worms, ticks, and certain susceptive infections. It is worth nothing that the time spent for these activities are multiplied by the number of dogs a keeper has. The time owners spend in: feeding, replacing water, and other complications (tolerating a pet that is uneager to take their medication), could be drastically reduced. Today the obsolete pet-food disensrs on the market, lack a proper preservation system. In this project, an automatic meal-spenser was designed and built. This essentially: dispensed food to dogs with voice command/button control, it also provided dogs with water, and finally, sneaked drugs into their meals - at preset times. Moreover, the automated sysem was coupled with online monitoring software - Gmail notifier being one of the them. Hence, users could monitor pet's food and water levels. This will free up owners' time, and further decrease the likelihood of starving pets. The product offers versatility and satisfaction for keepers and their dogs, an idea that was worth exploring.Ashesi Universit
Detection, classification and mitigation of power quality disturbances on the Ashesi University L.V. distribution network
No full textCapstone Project submitted to the Department of Engineering, Ashesi University in partial fulfillment of the requirements for the award of Bachelor of Science degree in Electrical and Electronic Engineering, May 2022This paper seeks to provide a system for ensuring quality power supply at Ashesi
University. The system would be based on ESP32 MCU board, and capable of measuring
electrical power supply quantities and also offering protection against sustained power
interruption, overvoltage, and undervoltage to the valuable power electronic equipment at the
school. The hardware setup is capable of offering protection to 3-phase loads in real time.
Throughout this paper, the hardware and software setup is emphasized and analyzed in detail,
in-terms of specific components used such as the PZEM-004T from which the parameters are
read using the ESP32 as well as firebase- which was used to design the database and host the
web application. On top of reading the values, ESP32 is utilized for logging the data onto
firebase real-time database through the inbuilt Wi-Fi module, for visualization of the data. RMS
voltage and current, active power and power factor are closely monitored in comparison with
the IEEE standards to help determine opening and closure of the relay module in-case of
detrimental power disturbances. The system was able to read and log the data into an online
database, and analysis of these readings in line with the set standards indicated proper operation
of the system.Ashesi Universit
Assessment of Usability Issues in Digital Financial Products in Ghana
Full text linkUndergraduate thesis submitted to the Department of Computer Science, Ashesi University, in partial fulfillment of Bachelor of Science degree in Management Information Systems, May 2022The proliferation of digital financial products, such as mobile money, has brought new opportunities for billions of people in developing countries to access financial services. Digital financial products are playing a crucial role in bridging the financial inclusion gap that exists between developed and developing countries. In Ghana, financial exclusion is more common among women and people living in rural areas. However, digital financial products on mobile phones (i.e., mobile banking and mobile money) and other platforms, such as automated teller machines (ATMs) and internet banking are accelerating financial inclusion in Ghana. Yet, there are challenges that users face when using digital financial products. In this thesis, we assess the usability issues in digital financial products. Our focus is on mobile money and popular mobile banking applications used by Ghanaians. The study provides user-centered design recommendations that interface designers, financial service providers, and other entrepreneurs can use to design apps that suit user needs and offer improved usability.Ashesi Universit
Lamber: an Emergency Response System for Ambulance Requests and First Aid Guide
Full text linkApplied project submitted to the Department of Computer Science, Ashesi University, in partial fulfillment of Bachelor of Science degree in Computer Science, April 2022Emergency Medical Services operations in Ghana are posing a challenge to the health sector in Ghana. Many people do not have access to emergency response services, let alone good amenities to secure their good health. Unfortunately, there is no digital application in Ghana that will allow people to request emergency response services to make life easier.
LAMBER is an emergency medical service software application that has three main
applications for patients, clinics, and paramedics. The system offers two major services namely ambulance requests and First-Aid guides for potential patients. The system will allow patients to create requests and link them to the nearest ambulances based on their
location. The patients are given the luxury to choose their ambulances and can send a general message to all available ambulances in case of any unforeseen emergencies.
Future work includes developing an AI-powered first aid guide.Ashesi Universit
Smart home energy management system using Internet of Things
Full text linkCapstone Project submitted to the Department of Engineering, Ashesi University in partial fulfillment of the requirements for the award of Bachelor of Science degree in Electrical and Electronic Engineering, May 2022Global energy demand is increasing rapidly, and carbon dioxide emissions and
global warming have become a worldwide central issue, prompting many countries to
switch to renewable energy sources. However, the integration of variable renewable energy
sources into the power grid, on the other hand, is posing technical issues to the traditional
grids. Since residential and commercial buildings account for 40% of the national energy
consumption and are still increasing due to population growth, the monitoring information
for the deployed grids that serve them is only available on the operator side. Thus, there is
a need to counteract the existing grid architecture by having a system that integrates
renewable energy sources and has demand-side customer-driven management. There has
been tremendous growth in the energy sector in recent years, where smart grid technology
was invented and continuously improved. Through this project, a prototype of a smart home
energy management system using the Internet of Things that integrates renewable energy
sources and is customer-driven is designed and built. The system monitors the
environmental conditions in the rooms like temperature and light intensity and the occupancy and controls the electrical appliances, respectively. It also shifts the loads to an
energy storage battery during peak hours.Ashesi Universit
The Impact of Mobile Money Account Ownership on Women's Economic Empowerment in Rwanda
No full textUndergraduate thesis submitted to the Department of Business Administration, Ashesi University, in partial fulfillment of Bachelor of Science degree in Business Administration, May 2022Mobile money usage has grown popular in Rwanda due to the availability and cost effectiveness of mobile phones. Moreover, government financial services and moves to eliminate transactional fees on mobile money have contributed significantly to its popularity in Rwanda. There has been research on the influence of mobile money on economic growth in Sub-Saharan African economies, however there is less evidence on the impact of mobile money on women's
economic empowerment, leaving need for more research.
This thesis examines the relationship between mobile money and women's economic empowerment. It used secondary data from the Global Findex database of 2017, with the target demographic being Rwandan women. The relationship between mobile money and women's economic empowerment was investigated using bivariate analysis and the Pearson Chi-square test for independence. It was determined that the two variables are interdependent and that when a woman owns a mobile money account, she is likely to become economically empowered. From the results, mobile money positively affects economic empowerment and therefore this thesis recommends that government, public and private sectors that still pay their employees in cash to switch to mobile money instead of prompt cash. This will encourage more women to use mobile money, resulting in greater economic empowerment for women.Ashesi Universi