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Towards Lean Manufacturing In Developing Countries: Research Gaps And Directions In Tanzania, Francis D. Sinkamba

Tanzania Journal of Engineering and Technology (TJET)

In the current knowledge-driven economy, many industries across the globe are forced to adopt manufacturing technologies such as lean manufacturing to remain competitive in the globalized world. Despite the increase in lean manufacturing implementations, the adoption rate in Tanzania is very low and estimated to be 8 percent. Likewise, the sustainability of lean manufacturing tools and practices is still questionable, which shows the need to develop lean maturity models. To date, several lean maturity models have been developed but there is ARTICLE INFO Submitted: July 5, 2022 Revised: Sept. 28, 2022 Presented: Oct. 20, 2022 a lack of maturity models …

Design Of International Airport Hybrid Renewable Energy System, Aviti Thadei Mushi

Tanzania Journal of Engineering and Technology (TJET)

This paper presents the design and simulation of a hybrid renewable energy system utilizing solar and wind energy sources with a backup generator. The demand for reliable electric energy in support of investments in large social and economic development activities such as airport operations has been an agenda worldwide. In Tanzania, Mwanza International Airport (MIA) expects to consume about 18 MVA of electric power annually to support its operations for the next 25 years. About 78-80% of the world's commercial energy comes from fossil fuels. Non-renewable fuels and other negative effects contribute to global warming through greenhouse gas emissions and …

Optimal Energy Management For Off-Grid Hybrid Renewable Energy Systems, Owdean M. Suwi

Tanzania Journal of Engineering and Technology (TJET)

A photovoltaic (PV)/wind/battery/Generator-Set hybrid power system's energy dispatch is discussed in this research, along with the ideal solution. The optimization model enables the hybrid power system's generating devices to share power appropriately. The main goals are to minimize fuel consumption and costs and maximize the usage of Renewable Energy Sources (RES). The proposed simulation plan succeeds in lowering fuel costs because the diesel generator only kicks on at night and in the early morning when the energy from RES is insufficient to supply the load. The load is supplied with power, and the battery is charged throughout the day, when …

Sensible Heat Bean Cooker, Casiana Lwiwa

Tanzania Journal of Engineering and Technology (TJET)

Alternative cooking energy to replace wood fuels is needed in the African context. Liquified Natural Gas (LNG) is a solution but is still based on burning fossil fuel. Electrical cookers can be an alternative as well. However, for off-grid systems this means electrical batteries are required, as the solar electricity from Photovoltaic (PV) panels is intermittent, and as cooking is also to be made after sunset. Heat storage technologies can provide solutions where available energy is stored in the form of heat for cooking when needed. The challenge is then to develop systems which are robust, safe, and technically simple. …

Factors Influencing Total Productive Maintenance Implementation For Thermal Generation Plants, Ismail W. R. Taifa Dr

Tanzania Journal of Engineering and Technology (TJET)

This study accepts that the technical and administrative factors can amplify effective total productive maintenance (TPM) implementation at thermal generation plants. It is noted that there is a limited number of studies that have attempted to understand the subject of TPM implementation in the energy sector. Noting this shortcoming, the authors thought it crucial to generate empirical evidence on the factors influencing effective TPM implementation for thermal generation plants, with evidence from gas-fired plants. A sample of 88 respondents was selected and consulted. Data were collected through questionnaires and analyzed quantitatively by inferential statistics and qualitatively through thematic analysis using …

Preparation And Characterization Of Microporous Cellulose Membranes As Potential Pathogen Filters, Peresi M. Bulemo

Tanzania Journal of Engineering and Technology (TJET)

Growth and development in the textile and fashion industry have resulted in the generation of large amounts of industrial pre consumer textile wastes. It is estimated that 10 to 20% of textile fabrics are wasted during garment manufacturing, with most of the wastes being burned or landfilled. Reusing pre-consumer fabric wastes is therefore considered a viable approach to alleviate environmental impacts associated with their disposal. To achieve a higher porosity membrane, pre-consumer cotton fabrics were partially dissolved in a solution of dimethyl acetamide (DMAc) and lithium chloride (LiCl), and the resulting fibre suspension was utilized to prepare a microporous cellulose …

Development Of Solar Pv Systems For Mini-Grid Applications In Tanzania, Seleman Mayanjo

Tanzania Journal of Engineering and Technology (TJET)

Access to electricity offers great benefits to development through the provision of reliable and efficient energy sources in the country. Majority of the population living in the remote and rural areas of developing countries mostly sub-Saharan Africa are not supplied with electricity. Although the governments through their electricity companies put their effort to extends the grid distribution networks to remote and rural areas still the coverage were not sufficiently enough due to growing demands for safe and reliable electricity. However, solar as a source of energy remains the least utilized energy source in many countries including Tanzania. Solar Photovoltaic (PV) …

A Mathematical Algorithm Approach For Estimating Water-Based Paint Requirements For A Given Wall, Ismail W. R. Taifa Dr

Tanzania Journal of Engineering and Technology (TJET)

The research aimed to improve the accuracy of estimating water based paint requirements for a given wall using mathematical algorithms. The approach used in this study included a survey and document review to obtain details concerning paint. The study focused on water-based paints, including silk, weather guard, emulsion hi-cover and polyvinyl acetate (PVA) roof paint used in Tanzania’s building and construction industry. Data collected from the field study were analysed systematically. It was observed that there is a high level of familiarity in improving the accuracy of estimation of the required water-based paints, namely silk, weather guard, emulsion hi-cover and …

Extraction And Characterization Of Collagen From Cattle Horns For Potential Wound Healing, Yeriko Halson

Tanzania Journal of Engineering and Technology (TJET)

The need for bandages and gauze for wound dressing and healing is inevitable due to the high increase in accidents. Most of the material used for the production of bandages and gauzes for wound healing are from non-renewable synthetic material. The sustainability of non renewable resources is at jeopardy due to the health and associated environmental impact. Consequently, the use of naturally occurring and biodegradable material is a promising solution to the sustainability challenges of synthetic material. In this paper, the extraction of collagen films from cattle horns for potential wound healing is reported. Collagen was extracted from cattle horns …

Current And Future Trends Of Construction Project Performance Models: A Review, Method Mtana

Tanzania Journal of Engineering and Technology (TJET)

The construction industry (CI) has experienced outstanding growth and contributed to economic growth for many countries, with enormous foreign investments that require quality projects. High pressure to reduce the construction cost and time commonly put the industry at risk of lower quality and safety of the construction facilities. Like many other developing countries, Tanzania needs more stringent quality control measures in the construction sector to contribute positively to sustainable growth. This study thus reviews current and future trends in construction industry performance in Tanzania. The literature review on construction projects (CPs) performance is based on information on time overruns from …

Studying Dielectric Losses Of Serially Combined Silicone Rubber And Epoxy Resin, Aviti Thadei Mushi

Tanzania Journal of Engineering and Technology (TJET)

High voltage outdoor insulation systems are conventionally ceramics and glass with several advantages, such as proven in the field, excellent dielectric properties, durability, and long life. However, they are heavy, attract vandals and break easily, and they can lose their dielectric properties easily when subjected to high voltage transients, arcing, and surges. To curb this, polymer insulators are used because they have excellent dielectric properties, such as those of ceramics and glass, with the added advantages that they do not break easily and recover their lost dielectric properties after any electrical transients. Therefore, this paper investigates the dielectric properties of …

Towards The Development Of A Framework For Assessing Organizational Governance Maturity For Technical Audit Of Public Works, George Haule

Tanzania Journal of Engineering and Technology (TJET)

The quality of the audit work and its products is often associated with the organizational maturity of the audit function. The absence of a well-defined organizational maturity for an audit function leads to poor quality of audit work or products and ineffective audit function. The lack of a framework for measuring governance maturity was identified as a major deterrent factor to the attainment of quality audit work. Measuring the governance maturity of the technical audit of public works is challenging due to the absence of a maturity framework that fits its needs. The noted shortcomings include: (a) existing maturity frameworks …

Cellulose-Keratin Supramolecular Composite: Conformation By Combined Fourier Transform Spectroscopy And Partial Least Square Regression Coefficient, Ngesa Ezekiel Mushi Dr

Tanzania Journal of Engineering and Technology (TJET)

Keratin and cellulose are important nano components with excellent mechanical and biological properties. However, the preparation route through dissolution in organic solvents to make manmade materials is challenging because of their intensive bonding interaction characteristics. Structural modification of the natural attributes is difficult to maintain after polymer regeneration. A new technique by a green route was devised to dissolve keratin from wool, hair, and feather with cellulose in situ using 1-Butyl-3-methylimidazolium chloride [BMIm] + Cl- ionic liquid as a solvent. The mixture of keratin and cellulose homogeneously and synergistically resulted in a supramolecular composite film through non-derivatized mechanochemical interactions. The …

Comparison Of On-Line Partial Discharge Detection Techniques For High Voltage Power Cable Joints And Terminations, Aviti Thadei Mushi

Tanzania Journal of Engineering and Technology (TJET)

Cable joints and terminations play a vital role in providing dependable electrical connection, mechanical support and physical safeguard. These provide electrical stress control to shielded power cables. Despite their usefulness, they suffer from partial discharges (PD) because of enhanced voltage stress, moisture ingress and poor workmanship (during installation). Therefore, it is necessary to undertake on-line PD detection to determine their state. Some of these techniques are capacitive coupler (CC); acoustic emission (AE); and high frequency current transducer (HFCT). This article presents a literature review of these techniques based on the cost, availability, and applicability. The comparative analysis is also provided …

Designing And Manufacturing Of Vegetable Slicing Machine, Juma Nuhu Msuya

Tanzania Journal of Engineering and Technology (TJET)

Agro-processing industry is faced with a challenge of slicing of vegetables for immediate consumption. This stems from the fact that the traditional slicing methods use bare hands, and knives. This method is faced with shortcomings of inefficiency, poor hygiene, and significant dangers to injury. If vegetables are not sliced, their drying takes longer, may possibly be spoiled, and cannot be stored for future uses. Therefore, this paper strives to design a vegetable slicing machine to increase the efficiency of the drying process as a post-processing step. The study employed a Pugh’s design model to design the machine and manufacture it. …

Using Of Open Access Institutional Repository Policy For Collecting Content In Oairs, Anna Mbughuni

Library Philosophy and Practice (e-journal)

The main objective of this study is to investigate how OAIRs policy can be used to collect the content in OAIRs. Systematic random and purposive sampling procedures were used to obtain a total of 292 respondents and 8 key informants. A structured questionnaire, in depth interview and secondary data were used to collect quantitative data and qualitative data. Quantitative data were analyzed by using SPSS version 22 and qualitative data were analyzed by using content analysis. Key findings revealed that 46.2% of respondents were aware of the OAIR policies and more than half (54.8%) were not aware of the OAIR …

Advancing The Agenda In Girls’ Education Research, Benta Abuya, David Evans, Selim Gulesci, Nicole Haberland, Susannah Hares, Rabea Malik, Alessia Mortara, Pauline Rose

Adolescents and Young People

No abstract provided.

Analysis Of Kenya’S Print Media Framing Of The Dusit D2 Terror Suspects, Ibrahim Galgalo Bocha

Master of Arts in Digital Journalism

The reporting of Terror Incidents (TIs) by the media in Kenya started when the first case was reported under the reign of President Jomo Kenyatta (1963-1978), with the first incident reported in 1980, when Palestinian militants staged an attack at Norfolk Hotel on New Year’s eve. Whereas the media has had to balance covering TIs in a timely, factual and objective manner, journalists also need to frame their narratives to reflect the event's social, economic and psychological dimensions. They strive to avoid sensationalism, bias and a presentation of facts that could be seen to fan militants’ propaganda. This study aimed …

Patient-Level And System-Level Determinants Of Stroke Fatality Across 16 Large Hospitals In Ghana And Nigeria: A Prospective Cohort Study, Fred S. Sarfo, Onoja M. Akpa, Bruce Ovbiagele, Albert Akpalu, Kolawole Wahab, Reginald Obiako, Morenikeji Komolafe, Lukman Owolabi, Godwin Ogbole, Philip Adebayo

Internal Medicine, East Africa

Background: Every minute, six indigenous Africans develop new strokes. Patient-level and system-level contributors to early stroke fatality in this region are yet to be delineated. We aimed to identify and quantify the contributions of patient-level and system-level determinants of inpatient stroke fatality across 16 hospitals in Ghana and Nigeria.

Methods: The Stroke Investigative Research and Educational Network (SIREN) is a multicentre study involving 16 sites in Ghana and Nigeria. Cases include adults (aged ≥18 years) with clinical and radiological evidence of an acute stroke. Data on stroke services and resources available at each study site were collected and analysed as …

Improving Nursing Education Curriculum As A Tool For Strengthening The Nurse–Client Relationships In Maternal And Child Healthcare: Insights From A Human-Centered Design Study In Rural Tanzania, Kahabi Isangula, Eunice Pallangyo, Eunice Ndirangu

School of Nursing & Midwifery, East Africa

Background. There are growing evidence of poor nurse–client relationships in maternal and child health (MCH). The nursing curriculum forms an important entry point for strengthening such relationships, consequently improving client satisfaction with nurses' competencies, confidence in the formal healthcare system, healthcare-seeking practices, continuity with care, and MCH outcomes.

Objective. MCH nurses and clients were invited to design an intervention package (prototype) to improve nurse–client relationships using a human-centered design (HCD) approach.

Methods. A multi-step HCD approach was employed to first examine the contributors of poor nurse–client relationships using nine focus group discussions with nurses and clients and 12 key informant …

Cultural Factors Associated With Human Trafficking Of Girls And Women In Northern Tanzania: The Case Of Arusha Region, Rehema John Magesa

Dignity: A Journal of Analysis of Exploitation and Violence

Human trafficking is persistent in many regions of Tanzania despite different efforts to reduce the practice by the Government and other stakeholders. Girls and young women are more affected by this practice in violation of their human rights than men and boys. This study explored the cultural factors attributing to the trafficking of girls and women in Northern Tanzania. The study involved 400 girls and young women for a quantitative and qualitative study on cultural determinants of human trafficking. The study found the following cultural practices pushed girls and women towards situations in which they could be trafficked: female genital …

The Efficacy Of Blended Learning In A Pediatric Spine Deformity Management Program In Sub-Saharan Africa, Alaaeldin Ahmad, Abdallah Abushehab, François Waterkeyn, Beverly Cheserem, Massimo Balsano, Christopher Bonfield, Hamisi Shabani, Juma Magogo, Bryson Mcharo, Costansia Bureta

General Surgery, East Africa

Introduction: Our study assessed the efficacy of blended learning, which combines in-person learning and e-learning, in a pediatric scoliosis training program through an international collaborative effort.

Methods: The course comprised two parts: the online portion, where participants reviewed educational materials for 3 weeks and met with faculty once/week for discussion, and the in-person session, where participants reviewed cases in a team-based approach and came to a consensus on treatment strategy, followed by discussion with an international expert. All participants completed a needs assessment (NA) and clinical quiz at three points: before the course, after the online session, and after the …

The Nexus Between Leadership And Implementation Of Education Infrastructure Development Policy Goals In Tanzania: Reflections From Kinondoni Municipal Council, Theresia Mdanya, Mrisho Malipula Dr

BISNIS & BIROKRASI: Jurnal Ilmu Administrasi dan Organisasi

This study assessed the association between leadership attributes and qualities in the implementation of education infrastructure development policy goals in Tanzania using Kinondoni Municipal Council as a case. A concurrent mixed-method triangulation of qualitative and quantitative data was employed to explore the nexus between leadership attributes and qualities in implementing education infrastructure development policy goals in Tanzania. The data used in this study was garnered from face-to-face interviews with 92 respondents recruited from a population of 288 Kinondoni Municipal Council workers and a review of documentary sources relevant to the study. The application of primary data from interviews and desk …

Potrait Of Public Private Partnership Policy Substances In Regional Hospitals In Indonesia, Masyitoh Basabih

Journal of Indonesian Health Policy and Administration

Public Private Partnership (PPP) is a strategy of the Indonesian Government to deal with budget constraints and overcome gaps in infrastructure, access, and quality of health services. PPP on the operational cooperation (KSO) model is the oldest and most widely applied practice by regional hospitals in Indonesia. The implementation of KSO must refer to government policies in the form of laws and regulations. Since its initial implementation until today, the Ministry of Home Affairs, as the body that oversees the local government, has not carried out a comprehensive evaluation of the KSO policy. This study was carried out by conducting …

Ubuntu’S Ontological Account In African Philosophy And Its Cross-Tradition Engagement On The Issue Of Being Versus Becoming, Anthony Chimankpam Ojimba

Comparative Philosophy

This paper x-rays Ramose’s ubuntu ontological account in African philosophy and its cross-tradition engagement on the issue of being versus becoming (such as the Yin-Yang, Heraclitean, Nietzschean, Whiteheadean and the Buddhists’ accounts) with a view to showing how convergence and divergence of thoughts in the African, European, and Asian philosophy contexts can advance cross-cultural philosophizing or cross-tradition approach to doing philosophy. Ramose’s ubuntu ontology designates a reconstruction of reality within the framework of motion, as captured in his concept of be-ing-becoming, while the Heraclitean, Nietzschean, Whiteheadean and the Buddhists’ ontological accounts also conceive reality within the confines of endless …

Kaunda And The Liberation Of Namibia: Towards An Assessment, Chris Saunders

Zambia Social Science Journal

When he died in June 2021, Kenneth Kaunda was widely hailed for his support for Southern African liberation movements. This paper considers the case of Namibia and the South West Africa People’s Organisation (SWAPO) and asks how Kaunda went about trying to bring about the liberation of Namibia in the 1970s and 1980s. He initially let SWAPO military operations take place from Zambia. SWAPO had its headquarters in Zambia in the 1970s, and many thousand Namibian refugees settled in Zambia. In international fora Kaunda gave SWAPO full support, and he backed the establishment of a United Nations (UN) Institute for …

Momentum: Research & Innovation For Spring 2023, University Of Rhode Island

Publications (Research and Economic Development)

The Spring 2023 issue of Research & Innovation, a periodical focused on research at the University of Rhode Island.

Integrated Support And Network Systems For Waste Management And Poverty Reduction: Formalisation Of Informal Waste Pickers In Northern Malawi, Ambelire Ghambi

Regis University Student Publications (comprehensive collection)

This paper seeks to explore an integrated support and network systems for waste management and poverty reduction through formalisation of informal waste pickers in northern Malawi. A systematic literature review on 50 peer reviewed papers, articles and books found that 70% of Malawi’s waste goes uncollected (United Nations Habitat, 2011) and is left in open dumpsites, roadside, streets, and river banks. Waste management (waste handling, collection, and disposal) remains a challenge in all municipalities and cities of Malawi. The local government’s inefficient and ineffective waste management is because of poor policy environment, centralised control of decision on waste, lack …

Trends Of Intra-Facility Births Outcomes Before And During Covid-19 Era In Dar Es Salaam, Tanzania, Willbroad Kyejo

Master of Medicine in Family Medicine

Background While substantial progress had been made in reducing maternal deaths, there was a risk that the COVID-19 pandemic might have reversed the progress made in maternal and newborn health in the last two decades. As such, maternal and newborn outcomes had been a topic of interest during the pandemic. Objectives This study aimed to compare the number of childbirths as an indicator of maternal health service utilization and to assess maternal and newborn outcomes before COVID-19 (2011-2019) and during the COVID-19 pandemic (2020/2021) in 22 health facilities in Dar es Salaam. Methodology A retrospective cohort study was conducted at …

Current Status And Priorities Of Paediatric Oncology Nursing In Africa: A Synthesis Of Perspectives From Siop Africa Nurses, Glenn M. Afungchwi, Elianeth Kiteni, Mariam Ndagire, Biemba Maliti, Julia M. Challinor, Rachel Hollis

School of Nursing & Midwifery, East Africa

Introduction. As African countries adopt the global goal of improving childhood cancer survival to 60% by 2030, intentional actions are required to improve nursing. This report aims to describe the current status of paediatric oncology nursing in Africa.

Methods. We report on nursing-related aspects of a survey to map paediatric oncology services in Africa (2018–2019), document perceived nursing strengths and weaknesses (2017) and share nurses’ research priorities (2019). Additionally, we report on a survey to identify topics for a foundation course (2019) and the expressed perspective of African nurses about the status of paediatric oncology nursing across the continent (2022). …