Journal Articles: Recent submissions
Now showing items 1021-1040 of 29939
-
Compositional and Thickness Effects on the Optical Properties of Zinc– Doped Selenium–Antimony Thin Films
(University of Nairobi, 2018)Chalcogenide system of antimony (Sb)-selenium (Se)-zinc (Zn) system is a promising semiconductor for phase change memory devices due to its thermal stability and low power consumption. The study investigated the effect of ... -
A Simplified Method for Parameter Determination of a Photovoltaic Module using Manufacturer’s data
(University of Nairobi, 2020)Accurate and fast modelling and simulation of Photovoltaic module requires careful determination and identification of the unknown parameters required in fitting the voltage-current and power-voltage curves to replicate ... -
Effect Of Deposition Temperature On The optical Properties Of Iron-Doped Cadmium Stannate Thin Films Deposited By Spray Pyrolysis
(University of Nairobi, 2019)Spray Pyrolysis Technique (SPT) was used to deposit thin films (TFs) of cadmium stannate, doped with iron (Fe) for the first time. The precursor solutions that were used wereprepared at a concentration of 0.1M, doped ... -
Pattern of stroke in a rural Kenyan hospital
(University of Nairobi, 2019)The pattern of stroke in rural population differs from that in urban ones. Although there are many studies on this condition in sub-Saharan Africa, few studies about stroke pattern in a Kenyan rural area exist.. This study ... -
Placental Structure in Preterm Birth Among HIV-Positive Versus HIV-Negative Women in Kenya.
(University of Nairobi, 2019)Background: Preterm birth (PTB) is a major cause of infant morbidity and mortality in developing countries. Recent data suggest that in addition to Human Immunodeficiency Virus (HIV) infection, use of antiretroviral therapy ... -
Optoelectronic property refinement of FASnI3 films for photovoltaic application
(University of Nairobi, 2021)Tin (Sn) is a promising substitute for lead (Pb) in organic–inorganic hybrid halide perovskite-photovoltaic devices, but it is prone to delivering low power conversion efficiencies (PCEs) due to the poor quality of ... -
A Simplified Simulation Procedure and Analysis of a Photovoltaic Solar System Using a Single Diode Model
(University of Nairobi, 2020)A single diode model for a photovoltaic solar module is the most ideal and quick way of analyzing the module characteristics before implementing them in a solar plant. Solar modules manufacturers provide information for ... -
Aortic arch origin of the vertebral artery may have clinical implications
(University of Nairobi, 2019)The vertebral artery usually arises from the 1st part of the subclavian artery. Variant origin may include the aortic arch, common, internal or external carotid arteries or a branch of the subclavian ... -
Anatomical Pattern of Dorsal Metatarsal Arteries in a Black Kenyan Population
(University of Nairobi, 2019-05)Introduction Knowledge of anatomical variations in the origin and in the course of the dorsal metatarsal arteries (DMTAs) is valuable for many procedures, including reconstructive surgeries and flap selection. However, ... -
A Fast and Accurate Analytical Method for Parameter Determination of a Photovoltaic System Based on Manufacturer’s Data
(University of Nairobi, 2020)Modeling and simulation of a photovoltaic solar system play a significant role in understanding its behavior in various environmental conditions. Utilization of the datasheet information in modeling and simulation of the ... -
An Audit of Dorsal Morphology of 30 Adult-Paired Cadaveric Calcaneal Specimen – An Osteological Study
(University of Nairobi, 2020)Background: The calcaneus exhibits variations of articular facets and calcaneal sulcus width. These variations influence occurrence of osteoarthritic conditions, which have significant prevalence in our setting, ... -
Conceptual framework for establishing the African Stroke Organization
(University of Nairobi, 2020)Africa is the world's most genetically diverse, second largest, and second most populous continent, with over one billion people distributed across 54 countries. With a 23% lifetime risk of stroke, Africa has some of the ... -
Improving the efficiency and stability of tin-based perovskite solar cells using anilinium hypophosphite additive Check for updates
(University of Nairobi, 2021)Tin (Sn) is a potential replacement for lead in organic–inorganic perovskite solar cell (PVSC) technology due to the attractive optoelectronic properties of Sn-perovskites. However, the poor stability of Sn2+ ions is still ... -
Oral Health Status among 12-YearOld Children in a Rural Kenyan Community
(University of Nairobi, 2014)Objectives: To determine the oral health status among schoolchildren in a rural Kenyan community and examine the relationship between oral symptoms and perceived general health. Participants: 150 pupils, aged 12 years, ... -
Utilization of Diagnostic Imaging in Dental and Maxillofacial Trauma in Selected Kenyan Hospital
(University of Nairobi, 2020)Background: Globally, much has changed in the imaging modalities available to investigate maxillofacial trauma. Nevertheless, the regional practice patterns are highly influenced by availability, affordability and ... -
Smartphones Supporting Monitoring Functions: Experiences from Sweet Potato Vine Distribution in sub-Saharan Africa.
(University of Nairobi, 2018)This chapter shares experiences in the use of smartphones to collect monitoring data for sweet potato vine multiplication and dissemination activities in sub-Saharan Africa. An Open Data Kit (ODK) technology is used to ... -
Supplier Selection Process Based on Fuzzy Logic
(University of Nairobi, 2018)In Kenyan governmental organizations, supplier selection during procurement process is regulated by the Public Procurement and Asset Disposal act. The act requires the selection to be done on technical and financial basis, ... -
Perceived general health in relation to oral health status in a rural Kenyan elderly population
(University of Nairobi, 2021)Background: This study aimed to determine the present oral health status of the rural Kenyan elderly population and to investigate whether oral health status is associated with the perceived general health. Methods: A ... -
An assessment of the sustainability of Living Labs in Kenya
(University of Nairobi, 2019)Purpose – There has been a high rate of failure among the Living Labs in Kenya resulting in the expected outcomes not fully realized. This paper aims to assess the sustainability of Living Labs in Kenya. Design/methodo ... -
Strengthening technology risk management in mobile money lending
(University of Nairobi, 2020)Innovative mobile money services have grown tremendously in the East African market. While there are positive effects of technology-enabled financial inclusion, risks exist. This study sought to strengthen the capacity of ...
