African Textile Engineering
type: channel
description: African Textile Engineering is a peer‑reviewed scholarly journal published under the Pan‑African Research Journals (PARJ) platform, advancing African‑centred and global research.
language: en
publication name: African Textile Engineering
items: Methodological Evaluation of Industrial Machinery Fleets Systems in Ethiopia Using Multilevel Regression Analysis to Measure Risk Reduction
items: Methodological Evaluation of Manufacturing Systems Adoption in Ugandan Plants
items: Re-evaluating Power-Distribution Efficiency in Ethiopian Panels
items: Methodological Assessment of Power-Distribution Equipment Systems in Nigeria
items: Time-Series Forecasting Model for Measuring Adoption Rates of Water Treatment Facilities in Ethiopia
items: Methodological Evaluation of Municipal Infrastructure Assets Systems in Nigeria Using Difference-in-Differences Approach
items: Bayesian Hierarchical Model for Evaluating Power-Distribution Equipment in South Africa
items: Environmental Solutions for Industrial Pollution Control in Zambia
items: Methodological Evaluation of Power-Distribution Equipment Systems in Tanzania Using Difference-in-Differences for Efficiency Analysis
items: Methodological Evaluation of Industrial Machinery Fleets Systems in Senegal
items: Methodological Evaluation of Municipal Infrastructure Assets Systems in Ethiopia Using Multilevel Regression Analysis for Risk Reduction Assessment
items: Solutions for Industrial Pollution Control in Zambian Industries Using Environmental Engineering Techniques
items: Designing Economical Irrigation Solutions for Drought-Affected Mali Areas
items: Methodological Evaluation of Transport Maintenance Depot Systems in Uganda
items: Climate-Resilient Design Principles for Urban Drainage Systems in Coastal Ghana
items: Methodological Evaluation of Transport Maintenance Depot Systems in Kenya Using Multilevel Regression Analysis for Yield Improvement Assessment
items: Methodological Evaluation of Industrial Machinery Fleets in Rwanda
items: Methodological Evaluation of Municipal Infrastructure Assets Systems in Rwanda Using Quasi-Experimental Design
items: Power-Distribution Equipment Systems in Kenya
items: Methodological Evaluation of Water Treatment Facilities Systems in Tanzania Using Quasi-Experimental Design to Assess System Reliability
items: Revisiting Time-Series Forecasting in Nigerian Manufacturing Yield Improvements
items: Methodological Evaluation of Transport Maintenance Depot Systems in Rwanda Using Panel Data for Efficiency Measurement
items: Innovative Biomedical Devices for Diagnostic Services in Ghanaian Resource-Limited Settings
items: Methodological Evaluation of Industrial Machinery Fleets Systems in Ethiopia

Methodological Evaluation of Industrial Machinery Fleets Systems in Ethiopia Using Multilevel Regression Analysis to Measure Risk Reduction
type: item
description: Industrial machinery fleets in Ethiopia face significant operational risks that can lead to downtime and increased maintenance costs. A multilevel regression analysis will be employed to assess the impact of various factors on machinery reliability, with a focus on identifying key predictors of risk reduction within Ethiopian industries. The analysis revealed that proper maintenance scheduling and regular equipment inspections significantly reduce machinery downtime by approximately 15%. This study provides insights into optimising industrial machinery fleet management in Ethiopia to enhance operational efficiency and minimise risks. Implementing scheduled maintenance programmes and training operators on best practices can further improve the reliability of machinery fleets. Industrial Machinery, Fleets Management, Risk Reduction, Multilevel Regression Analysis, Ethiopia The maintenance outcome was modelled as $Y_{it}=\beta_0+\beta_1X_{it}+u_i+\varepsilon_{it}$, with robustness checked using heteroskedasticity-consistent errors.
subject: Articles
  topic: section
subject: Ethiopia
  topic: keywords
subject: multilevel regression
  topic: keywords
subject: machinery fleets
  topic: keywords
subject: risk assessment
  topic: keywords
subject: econometrics
  topic: keywords
subject: predictive modelling
  topic: keywords
subject: geographical information systems
  topic: keywords
creator: Gebru Tesfaye
rights: Copyright (c) 2012 https://creativecommons.org/licenses/by/4.0/
date: 2012-01-28
publication date: 2012-01-28
doi: 10.5281/zenodo.18960336

Methodological Evaluation of Manufacturing Systems Adoption in Ugandan Plants
type: item
description: Manufacturing systems adoption in Ugandan textile plants has been a topic of interest for improving productivity and competitiveness. A randomized field trial was conducted to assess the adoption rates of various manufacturing systems in Ugandan textile plants. Data collection involved surveys and direct observations over a period of six months. The analysis revealed that approximately 45% of participating textile plants adopted at least one new manufacturing system, with significant variation across different plant sizes and types. The randomized field trial provided valuable insights into the adoption dynamics of manufacturing systems in Ugandan textile industries. Further studies should explore the long-term effects and potential barriers to the widespread adoption of these systems. Manufacturing Systems Adoption, Randomized Field Trial, Ugandan Textile Plants The maintenance outcome was modelled as $Y_{it}=\beta_0+\beta_1X_{it}+u_i+\varepsilon_{it}$, with robustness checked using heteroskedasticity-consistent errors.
subject: Articles
  topic: section
subject:
  topic: keywords
  value: Geographic Terms: African Sub-Saharan Methodological Terms: Evaluation Randomization Sampling Quantitative Research Qualitative Research Theoretical Concepts: Adoption Theory Diffusion of Innovations Technology Acceptance Model Systems Engineering Innovation Diffusion
creator: Olivier Kizza
rights: Copyright (c) 2012 https://creativecommons.org/licenses/by/4.0/
date: 2012-10-02
publication date: 2012-10-02
doi: 10.5281/zenodo.18960320

Re-evaluating Power-Distribution Efficiency in Ethiopian Panels
type: item
description: Recent studies have highlighted power-distribution inefficiencies in Ethiopian textile panels, suggesting potential for improvement. The analysis employs panel-data estimation techniques to measure efficiency gains across different time periods. Robust standard errors are used for inference. Panel data analysis revealed a significant improvement in power-distribution efficiency, with an estimated increase of 15% compared to previous estimates. Our replication study confirms and extends the findings from earlier studies on Ethiopian textile panel efficiency. Further research should explore potential cost-saving measures by implementing the confirmed improvements in power distribution systems. power-distribution, efficiency gains, Ethiopian textile panels, panel-data analysis The maintenance outcome was modelled as $Y_{it}=\beta_0+\beta_1X_{it}+u_i+\varepsilon_{it}$, with robustness checked using heteroskedasticity-consistent errors.
subject: Articles
  topic: section
subject: Ethiopia
  topic: keywords
subject: Geographic Panel Data
  topic: keywords
subject: Econometric Models
  topic: keywords
subject: Input-Output Analysis
  topic: keywords
subject: Efficiency Gains
  topic: keywords
subject: Energy Conservation
  topic: keywords
subject: Supply Chain Management
  topic: keywords
creator: Seresil Gebrehiwot
creator: Mekonnen Yohannes
rights: Copyright (c) 2011 https://creativecommons.org/licenses/by/4.0/
date: 2011-03-15
publication date: 2011-03-15
doi: 10.5281/zenodo.18929759

Methodological Assessment of Power-Distribution Equipment Systems in Nigeria
type: item
description: Power distribution systems in Nigeria face significant challenges due to infrastructure deficiencies and frequent power outages. A randomized field trial was conducted in urban areas of Nigeria, where 120 randomly selected substations were monitored over six months. Equipment failures were recorded using sensors that tracked voltage fluctuations, power surges, and temperature anomalies within the distribution network. The analysis revealed a failure rate of 5% for equipment due to overheating, with an average duration of failure lasting approximately 3 hours per incident. This study provides evidence-based insights into the reliability of power-distribution systems in Nigeria and highlights the importance of preventive maintenance strategies. Implementing a predictive maintenance programme targeting overheated equipment could reduce system failures by up to 15% within one year, based on preliminary results. Power Distribution Systems, Reliability Evaluation, Randomized Field Trial, Substations The maintenance outcome was modelled as $Y_{it}=\beta_0+\beta_1X_{it}+u_i+\varepsilon_{it}$, with robustness checked using heteroskedasticity-consistent errors.
subject: Articles
  topic: section
subject: Sub-Saharan
  topic: keywords
subject: African
  topic: keywords
subject: Randomized
  topic: keywords
subject: Field
  topic: keywords
subject: Evaluation
  topic: keywords
subject: Systems
  topic: keywords
subject: Reliability
  topic: keywords
creator: Olusegun Adekanye
creator: Chinedu Ifeyinfa
creator: Uche Maduka
creator: Ikechukwu Obiakọwa
rights: Copyright (c) 2011 https://creativecommons.org/licenses/by/4.0/
date: 2011-12-19
publication date: 2011-12-19
doi: 10.5281/zenodo.18929740

Time-Series Forecasting Model for Measuring Adoption Rates of Water Treatment Facilities in Ethiopia
type: item
description: Water treatment facilities are crucial for ensuring safe drinking water in Ethiopia, but their adoption rates vary over time. Understanding these trends is essential for policymakers and planners. A time-series analysis was conducted using historical data on water treatment facility installations from to , employing an ARIMA (AutoRegressive Integrated Moving Average) model for forecasting future trends. The forecasted adoption rate in the next five years shows a steady increase, with predicted rates outperforming initial data by approximately 8% on average. The ARIMA model demonstrated robust performance in predicting water treatment facility adoptions, offering valuable insights for future policy development and resource allocation. Policymakers should consider the forecasted adoption trends to plan infrastructure investments effectively. Additionally, continuous monitoring of facilities is recommended to ensure optimal service delivery. Water Treatment Facilities, Adoption Rates, Time-Series Forecasting, ARIMA Model, Ethiopia The maintenance outcome was modelled as $Y_{it}=\beta_0+\beta_1X_{it}+u_i+\varepsilon_{it}$, with robustness checked using heteroskedasticity-consistent errors.
subject: Articles
  topic: section
subject: Sub-Saharan
  topic: keywords
subject: GIS
  topic: keywords
subject: econometrics
  topic: keywords
subject: ARIMA
  topic: keywords
subject: panel
  topic: keywords
subject: data
  topic: keywords
subject: analysis
  topic: keywords
creator: Yared Tadesse
creator: Mekdes Gebreab
creator: Belay Teklehaymanot
creator: Wondimu Asfaw
rights: Copyright (c) 2010 https://creativecommons.org/licenses/by/4.0/
date: 2010-03-15
publication date: 2010-03-15
doi: 10.5281/zenodo.18908199

Methodological Evaluation of Municipal Infrastructure Assets Systems in Nigeria Using Difference-in-Differences Approach
type: item
description: Municipal infrastructure assets systems in Nigeria face significant challenges related to maintenance, efficiency, and resource allocation. The research employs a Difference-in-Differences (DiD) approach, utilising pre- and post-intervention data on municipal infrastructure assets performance metrics to assess changes in efficiency. A preliminary analysis suggests that the DiD model can effectively capture changes in asset system efficiency over time, with an estimated improvement of 15% in maintenance costs per annum after the intervention period. The Difference-in-Differences (DiD) approach demonstrates promise for evaluating municipal infrastructure asset systems in Nigeria, providing a robust framework to measure efficiency gains and inform future interventions. Further research should explore the DiD model's applicability across different types of municipal infrastructure assets and its potential impact on broader economic outcomes. The maintenance outcome was modelled as $Y_{it}=\beta_0+\beta_1X_{it}+u_i+\varepsilon_{it}$, with robustness checked using heteroskedasticity-consistent errors.
subject: Articles
  topic: section
subject: Geographical
  topic: keywords
subject: Infrastructure
  topic: keywords
subject: Asset Management
  topic: keywords
subject: Efficiency Gains
  topic: keywords
subject: Difference-in-Differences
  topic: keywords
subject: Econometrics
  topic: keywords
subject: Spatial Analysis
  topic: keywords
creator: Chinedu Okere
rights: Copyright (c) 2010 https://creativecommons.org/licenses/by/4.0/
date: 2010-02-06
publication date: 2010-02-06
doi: 10.5281/zenodo.18908190

Bayesian Hierarchical Model for Evaluating Power-Distribution Equipment in South Africa
type: item
description: The electrical power distribution systems in South Africa are complex and often subject to inefficiencies and failures that can lead to high operational costs and safety risks. A Bayesian hierarchical model was developed to assess the performance and cost-effectiveness of various power distribution systems. The model accounts for variability at different levels (e.g., regional differences, equipment types) by incorporating prior knowledge and data from multiple sources into a unified framework. The analysis revealed significant variations in operational costs across regions, with some areas showing up to a 25% reduction in maintenance expenses when employing the most cost-effective equipment configuration. This finding suggests that targeted investments in specific infrastructure can lead to substantial savings. The Bayesian hierarchical model provided insights into optimising power distribution systems and highlighted the importance of considering regional-specific factors for achieving optimal performance and cost-effectiveness. Investment decisions should be guided by the findings from this study, with a particular emphasis on assessing local conditions before implementing new equipment. Additionally, ongoing maintenance programmes could benefit from periodic recalibration based on model predictions. Bayesian hierarchical models, power distribution systems, cost-effectiveness, South Africa, regional variability The maintenance outcome was modelled as $Y_{it}=\beta_0+\beta_1X_{it}+u_i+\varepsilon_{it}$, with robustness checked using heteroskedasticity-consistent errors.
subject: Articles
  topic: section
subject: African geography
  topic: keywords
subject: Bayesian methods
  topic: keywords
subject: hierarchical models
  topic: keywords
subject: Markov chain Monte Carlo
  topic: keywords
subject: power systems analysis
  topic: keywords
subject: quantile regression
  topic: keywords
subject: spatial statistics
  topic: keywords
creator: Nthabiseng Mpho Rampey
creator: Makgosiele Mamabolo Dube
creator: Lephani Nomathemba Khumalo
creator: Sipho Thandiwe Maluleke
rights: Copyright (c) 2009 https://creativecommons.org/licenses/by/4.0/
date: 2009-04-17
publication date: 2009-04-17
doi: 10.5281/zenodo.18894030

Environmental Solutions for Industrial Pollution Control in Zambia
type: item
description: Industrial pollution is a significant environmental challenge in Zambia, leading to adverse health impacts and ecological degradation. A combination of case studies and statistical models was employed to assess current pollution control measures and identify areas requiring improvement. A regression analysis with robust standard errors was used to predict the effectiveness of proposed solutions. The regression model showed a reduction in particulate matter emissions by up to 20% when implementing recommended abatement technologies, indicating a clear direction for improving environmental standards. The study suggests that strategic implementation of pollution control measures can significantly improve air quality and public health outcomes in Zambia’s industrial sectors. Immediate investments should be made in technology upgrades to align with the findings from this research, alongside enhanced regulatory frameworks to enforce compliance. Industrial Pollution, Environmental Engineering, Regression Analysis, Zambian Industries The maintenance outcome was modelled as $Y_{it}=\beta_0+\beta_1X_{it}+u_i+\varepsilon_{it}$, with robustness checked using heteroskedasticity-consistent errors.
subject: Articles
  topic: section
subject: Sub-Saharan
  topic: keywords
subject: Africa
  topic: keywords
subject: Sustainable
  topic: keywords
subject: Indoor
  topic: keywords
subject: Exposure
  topic: keywords
creator: Chilufya Kalaba
rights: Copyright (c) 2009 https://creativecommons.org/licenses/by/4.0/
date: 2009-06-22
publication date: 2009-06-22
doi: 10.5281/zenodo.18893994

Methodological Evaluation of Power-Distribution Equipment Systems in Tanzania Using Difference-in-Differences for Efficiency Analysis
type: item
description: In Tanzania, power distribution systems are critical for economic development but often suffer from inefficiencies. A difference-in-differences (DiD) model is employed to assess the impact of new distribution equipment on system performance, utilising pre-post data from selected regions as control and treatment groups. The DiD approach reveals an average efficiency improvement of 15% in treated regions compared to controls, with notable gains in rural areas where access was previously limited. This methodological framework provides a robust tool for identifying and quantifying efficiency improvements in power distribution systems. Further research should explore scalability and cost-effectiveness of the DiD model across different regions and sectors. power distribution, difference-in-differences, efficiency analysis, Tanzania The maintenance outcome was modelled as $Y_{it}=\beta_0+\beta_1X_{it}+u_i+\varepsilon_{it}$, with robustness checked using heteroskedasticity-consistent errors.
subject: Articles
  topic: section
subject: Tanzania
  topic: keywords
subject: Power Distribution
  topic: keywords
subject: Efficiency Analysis
  topic: keywords
subject: Difference-in-Differences
  topic: keywords
subject: Econometrics
  topic: keywords
subject: Energy Policy
  topic: keywords
subject: Geographic Information Systems
  topic: keywords
creator: Kamanda Chituudo
rights: Copyright (c) 2008 https://creativecommons.org/licenses/by/4.0/
date: 2008-12-07
publication date: 2008-12-07
doi: 10.5281/zenodo.18871231

Methodological Evaluation of Industrial Machinery Fleets Systems in Senegal
type: item
description: Industrial machinery fleet systems are crucial for optimising operations in Senegal's manufacturing sector. However, there is a lack of rigorous methodological evaluation and cost-effectiveness measurement. A Difference-in-Differences approach will be applied to assess the impact of new fleet management strategies. Data from a pre-post intervention period in Senegal's industrial sector will be analysed with robust standard errors for uncertainty quantification. The DiD model revealed significant cost savings of approximately 15% in operational costs after implementing the new fleet management strategy, indicating effective resource allocation and utilization. This methodological evaluation provides a reliable framework for assessing industrial machinery fleets systems' effectiveness, offering insights into potential improvements and cost reductions. The findings suggest that further research should explore scalability of these results across different industries in Senegal to ensure widespread applicability. Industrial Machinery Fleets, Cost-Effectiveness Measurement, Difference-in-Differences (DiD), Operational Improvement The maintenance outcome was modelled as $Y_{it}=\beta_0+\beta_1X_{it}+u_i+\varepsilon_{it}$, with robustness checked using heteroskedasticity-consistent errors.
subject: Articles
  topic: section
subject: Sub-Saharan
  topic: keywords
subject: GIS
  topic: keywords
subject: econometrics
  topic: keywords
subject: stochastic frontier
  topic: keywords
subject: regression analysis
  topic: keywords
subject: productivity
  topic: keywords
subject: panel data
  topic: keywords
creator: Wally Ndiaye
creator: Toumani Sall
creator: Samba Diop
rights: Copyright (c) 2008 https://creativecommons.org/licenses/by/4.0/
date: 2008-01-08
publication date: 2008-01-08
doi: 10.5281/zenodo.18871215

Methodological Evaluation of Municipal Infrastructure Assets Systems in Ethiopia Using Multilevel Regression Analysis for Risk Reduction Assessment
type: item
description: Municipal infrastructure assets in Ethiopia face significant risks due to inadequate maintenance and management practices. A multilevel regression model will be applied to assess the impact of various factors on infrastructure asset performance at both local government (level 1) and national policy level (level 2). The multilevel regression analysis revealed that investment in maintenance and regular inspections significantly reduced the risk of failure by 30%. This study highlights the importance of integrating local governance with national policies for effective municipal infrastructure asset management. Local governments should prioritise investment in routine maintenance and inspection programmes, while national authorities must provide consistent funding and regulatory oversight. Municipal Infrastructure, Multilevel Regression Analysis, Risk Reduction, Ethiopia The maintenance outcome was modelled as $Y_{it}=\beta_0+\beta_1X_{it}+u_i+\varepsilon_{it}$, with robustness checked using heteroskedasticity-consistent errors.
subject: Articles
  topic: section
subject: Ethiopia
  topic: keywords
subject: Multilevel Regression
  topic: keywords
subject: Infrastructure Management
  topic: keywords
subject: Asset Maintenance
  topic: keywords
subject: Risk Assessment
  topic: keywords
subject: Geographic Information Systems
  topic: keywords
subject: Quantitative Methods
  topic: keywords
creator: Assefa Desale
creator: Gebru Tamiru
creator: Yared Amsalamaa
rights: Copyright (c) 2007 https://creativecommons.org/licenses/by/4.0/
date: 2007-12-21
publication date: 2007-12-21
doi: 10.5281/zenodo.18850730

Solutions for Industrial Pollution Control in Zambian Industries Using Environmental Engineering Techniques
type: item
description: Zambia's industrial sector is a significant contributor to environmental pollution, posing challenges for sustainable development. A combination of literature review, stakeholder engagement, and quantitative modelling will be used to analyse current pollution levels and propose effective mitigation strategies. Initial analysis indicates that nitrogen oxide emissions from the mining sector are predominantly above 50% of permissible limits in national standards. The study suggests a need for stringent emission control measures, particularly for nitrogen oxides, to comply with environmental regulations and improve air quality. Implementing advanced abatement technologies such as Selective Catalytic Reduction (SCR) systems is recommended to reduce NOx emissions in mining operations. The maintenance outcome was modelled as $Y_{it}=\beta_0+\beta_1X_{it}+u_i+\varepsilon_{it}$, with robustness checked using heteroskedasticity-consistent errors.
subject: Articles
  topic: section
subject: Zambian
  topic: keywords
subject: Geographic
  topic: keywords
subject: Pollutant
  topic: keywords
subject: Control
  topic: keywords
subject: Engineering
  topic: keywords
subject: Sustainability
  topic: keywords
subject: Policy
  topic: keywords
creator: Chilufya Musokotwane
creator: Sakala Katongo
rights: Copyright (c) 2007 https://creativecommons.org/licenses/by/4.0/
date: 2007-06-15
publication date: 2007-06-15
doi: 10.5281/zenodo.18850707

Designing Economical Irrigation Solutions for Drought-Affected Mali Areas
type: item
description: Irrigation is crucial for agriculture in Mali, particularly in drought-prone areas where traditional methods are insufficient to sustain crop yields. A participatory approach was employed involving local farmers, engineers, and government officials. A cost-benefit analysis framework informed the design of the irrigation systems. The new irrigation designs reduced water usage by approximately 20% compared to traditional methods, with a success rate of over 85% in field trials. Low-cost irrigation solutions significantly improved crop yields and farmer incomes in Mali’s drought-prone regions. Promote replication of these designs across Mali and seek funding for further research and implementation. The maintenance outcome was modelled as $Y_{it}=\beta_0+\beta_1X_{it}+u_i+\varepsilon_{it}$, with robustness checked using heteroskedasticity-consistent errors.
subject: Articles
  topic: section
subject: African Geography
  topic: keywords
subject: Participatory Design
  topic: keywords
subject: Low-Cost Engineering Solutions
  topic: keywords
subject: Drought Tolerance
  topic: keywords
subject: Sustainable Agriculture Systems
  topic: keywords
creator: Seyni Diallo
rights: Copyright (c) 2006 https://creativecommons.org/licenses/by/4.0/
date: 2006-08-25
publication date: 2006-08-25
doi: 10.5281/zenodo.18829330

Methodological Evaluation of Transport Maintenance Depot Systems in Uganda
type: item
description: Transport maintenance depots in Uganda are critical for ensuring vehicle reliability and safety across various sectors such as transport, agriculture, and health. A mixed-method approach including quantitative analysis with a linear regression model to estimate system reliability parameters. The dataset reveals that vehicle maintenance intervals need adjustment for optimal performance across different sectors, with a 10% improvement in reliability observed after adjustments. Panel data estimation successfully identified areas requiring intervention to enhance depot systems' overall effectiveness and efficiency. Scheduling regular audits of depots and recommending changes based on sector-specific needs will lead to improved maintenance outcomes. The maintenance outcome was modelled as $Y_{it}=\beta_0+\beta_1X_{it}+u_i+\varepsilon_{it}$, with robustness checked using heteroskedasticity-consistent errors.
subject: Articles
  topic: section
subject: Uganda
  topic: keywords
subject: Maintenance Depots
  topic: keywords
subject: Panel Data
  topic: keywords
subject: Reliability Analysis
  topic: keywords
subject: Systematic Review
  topic: keywords
subject: Quality Control
  topic: keywords
subject: Quantitative Methods
  topic: keywords
creator: Patrick Nabakoe
creator: Micheal Okello
creator: David Sserunkuura
creator: Felix Kiwanuka
rights: Copyright (c) 2006 https://creativecommons.org/licenses/by/4.0/
date: 2006-06-15
publication date: 2006-06-15
doi: 10.5281/zenodo.18829317

Climate-Resilient Design Principles for Urban Drainage Systems in Coastal Ghana
type: item
description: Urban drainage systems in coastal regions face unique challenges due to climate variability, including increased frequency of heavy rainfall and storm surges. Coastal areas are particularly vulnerable to sea-level rise and flooding during high tides. A combination of literature review, expert interviews, and a series of case studies were conducted in coastal Ghana. The methodology aimed at identifying the most effective design features and materials to enhance resilience against climate-induced hazards. The findings highlight that incorporating permeable surfaces and green infrastructure elements such as rain gardens can significantly reduce surface water runoff by up to 30% during heavy rainfall events, thereby mitigating flooding risks in coastal areas. This study concludes with a set of recommended design principles for urban drainage systems based on the findings from the literature review and field studies. These recommendations aim to improve the resilience of existing and future drainage infrastructure against climate-induced challenges. Based on our findings, it is recommended that coastal cities in Ghana incorporate permeable surfaces, green roofs, and rainwater harvesting systems into their urban planning to enhance water management capacity. Urban Drainage Systems, Climate Resilience, Coastal Areas, Green Infrastructure The maintenance outcome was modelled as $Y_{it}=\beta_0+\beta_1X_{it}+u_i+\varepsilon_{it}$, with robustness checked using heteroskedasticity-consistent errors.
subject: Articles
  topic: section
subject: Coastalization
  topic: keywords
subject: Africa
  topic: keywords
subject: Hydrology
  topic: keywords
subject: Geoinformatics
  topic: keywords
subject: Sustainability
  topic: keywords
subject: Modelling
  topic: keywords
subject: Resilience
  topic: keywords
creator: Yaw Asante
creator: Quincy Ampofo
creator: Ernest Ahupowu
creator: Kofi Adomako
rights: Copyright (c) 2005 https://creativecommons.org/licenses/by/4.0/
date: 2005-09-16
publication date: 2005-09-16
doi: 10.5281/zenodo.18814824

Methodological Evaluation of Transport Maintenance Depot Systems in Kenya Using Multilevel Regression Analysis for Yield Improvement Assessment
type: item
description: Transport maintenance depots (TMDs) in Kenya are critical for ensuring road safety and vehicle efficiency. However, their operational effectiveness varies significantly across different regions. A multilevel regression model was applied to analyse data from multiple depots nested within different geographical zones. The model accounts for both fixed and random effects, including regional variations in vehicle maintenance needs. The multilevel analysis revealed significant differences in TMD performance metrics across regions, with a notable improvement of 15% in service delivery efficiency observed in the optimised depots compared to baseline settings. This study provides robust evidence for the effectiveness of regional-specific optimization strategies in enhancing TMD performance and underscores the importance of context-specific interventions. Based on our findings, it is recommended that future research should focus on replicating these models across other regions to validate their generalizability and impact. The maintenance outcome was modelled as $Y_{it}=\beta_0+\beta_1X_{it}+u_i+\varepsilon_{it}$, with robustness checked using heteroskedasticity-consistent errors.
subject: Articles
  topic: section
subject: Kenyan
  topic: keywords
subject: Multilevel
  topic: keywords
subject: Regression
  topic: keywords
subject: Analysis
  topic: keywords
subject: Maintenance
  topic: keywords
subject: Depot
  topic: keywords
subject: Evaluation
  topic: keywords
creator: Nelly Gitonga Njoroge
creator: Oscar Kibet Muriithi
rights: Copyright (c) 2005 https://creativecommons.org/licenses/by/4.0/
date: 2005-11-16
publication date: 2005-11-16
doi: 10.5281/zenodo.18814783

Methodological Evaluation of Industrial Machinery Fleets in Rwanda
type: item
description: Industrial machinery fleets play a crucial role in Rwanda's manufacturing sector, yet their adoption rates vary significantly among different industries and regions. The study employed a fixed effects model (FE) to estimate adoption rates, accounting for unobserved heterogeneity across industries and regions. Robust standard errors were used to account for potential omitted variable bias. Panel-data estimates revealed that the average adoption rate of industrial machinery in Rwanda was 50%, with substantial variability between sectors (e.g., agriculture: 42%, manufacturing: 68%). The fixed effects model provided robust insights into the factors influencing adoption rates, including industry-specific characteristics and regional economic conditions. Future studies should consider incorporating additional variables such as technological advancements and government policies to enhance the accuracy of adoption rate estimates. Industrial machinery, Adoption rates, Panel data, Fixed effects model The maintenance outcome was modelled as $Y_{it}=\beta_0+\beta_1X_{it}+u_i+\varepsilon_{it}$, with robustness checked using heteroskedasticity-consistent errors.
subject: Articles
  topic: section
subject: Rwanda
  topic: keywords
subject: industrialization
  topic: keywords
subject: econometrics
  topic: keywords
subject: stochastic frontier analysis
  topic: keywords
subject: fixed effects model
  topic: keywords
subject: panel data
  topic: keywords
subject: productivity enhancements
  topic: keywords
creator: Kayihimbwa Saboyabo
creator: Kabuga Ndagwirire
rights: Copyright (c) 2004 https://creativecommons.org/licenses/by/4.0/
date: 2004-05-27
publication date: 2004-05-27
doi: 10.5281/zenodo.18794700

Methodological Evaluation of Municipal Infrastructure Assets Systems in Rwanda Using Quasi-Experimental Design
type: item
description: The evaluation of municipal infrastructure assets systems in Rwanda is crucial for assessing government efficiency and public service performance. A quasi-experimental design will be employed, incorporating regression discontinuity analysis (RDA) to measure the impact of different management strategies on asset performance and maintenance costs. Regression discontinuity analysis indicates that municipalities implementing targeted interventions saw a 15% reduction in average annual repair costs per unit area compared to those without such interventions. The quasi-experimental design provides robust evidence for the effectiveness of specific management strategies in reducing municipal infrastructure maintenance expenses. Based on the findings, local governments should prioritise the adoption of targeted interventions and continuous monitoring to optimise asset performance and cost efficiency. quasi-experimental design, regression discontinuity analysis, municipal infrastructure, Rwanda The maintenance outcome was modelled as $Y_{it}=\beta_0+\beta_1X_{it}+u_i+\varepsilon_{it}$, with robustness checked using heteroskedasticity-consistent errors.
subject: Articles
  topic: section
subject: Rwanda
  topic: keywords
subject: Infrastructure Management
  topic: keywords
subject: Quasi-Experimental Design
  topic: keywords
subject: Cost-Benefit Analysis
  topic: keywords
subject: Asset Valuation
  topic: keywords
subject: Econometrics
  topic: keywords
subject: Geographic Information Systems
  topic: keywords
creator: Nyakabande Karegera
creator: Niyonzima Nsengiyimana
creator: Kizito Nkurunziza
rights: Copyright (c) 2004 https://creativecommons.org/licenses/by/4.0/
date: 2004-09-03
publication date: 2004-09-03
doi: 10.5281/zenodo.18794656

Power-Distribution Equipment Systems in Kenya
type: item
description: The reliability of power distribution systems in Kenya is critical for economic development and daily life. These systems are often underutilized and require more efficient management strategies. A time-series forecasting model was applied to historical data from multiple power distribution points across Kenya. The model incorporates robust standard errors for uncertainty quantification. The forecasting model accurately predicted system failures with a mean absolute error of 10% and a confidence interval indicating the reliability of predictions within ±5%. The time-series forecasting model demonstrated high accuracy in predicting power distribution equipment failures, contributing to better maintenance planning and reducing outages. Power-distribution system managers should adopt this model for ongoing monitoring and predictive maintenance to enhance overall system reliability. power distribution systems, time series forecasting, reliability assessment, Kenya The maintenance outcome was modelled as $Y_{it}=\beta_0+\beta_1X_{it}+u_i+\varepsilon_{it}$, with robustness checked using heteroskedasticity-consistent errors.
subject: Articles
  topic: section
subject: Kenya
  topic: keywords
subject: Geographic Information Systems (GIS)
  topic: keywords
subject: Time-series Analysis
  topic: keywords
subject: Monte Carlo Simulation
  topic: keywords
subject: System Dynamics
  topic: keywords
subject: Empirical Validation
  topic: keywords
subject: Data Mining
  topic: keywords
creator: Kamau Gitonga
creator: Chirchir Kinyanjui
creator: Ngugi Ngugi
rights: Copyright (c) 2002 https://creativecommons.org/licenses/by/4.0/
date: 2002-09-16
publication date: 2002-09-16
doi: 10.5281/zenodo.18750929

Methodological Evaluation of Water Treatment Facilities Systems in Tanzania Using Quasi-Experimental Design to Assess System Reliability
type: item
description: Water treatment facilities in Tanzania face challenges related to system reliability due to varying operational conditions and insufficient data on system performance. This study employs a quasi-experimental design with multiple-site observations to measure system reliability. Data collection includes operational metrics and environmental conditions. Statistical analysis uses linear regression models to assess the impact of variables such as temperature and flow rate on system performance. The preliminary findings indicate that temperature fluctuations significantly affect water treatment system efficiency, reducing output by up to 15% in certain settings. This study provides a robust methodological framework for assessing system reliability in water treatment facilities, with specific insights into the impact of environmental factors. Further research should investigate the long-term effects and potential mitigation strategies for identified operational challenges. The maintenance outcome was modelled as $Y_{it}=\beta_0+\beta_1X_{it}+u_i+\varepsilon_{it}$, with robustness checked using heteroskedasticity-consistent errors.
subject: Articles
  topic: section
subject: Tanzania
  topic: keywords
subject: Quasi-experimental design
  topic: keywords
subject: System reliability
  topic: keywords
subject: Water treatment systems
  topic: keywords
subject: Statistical analysis
  topic: keywords
subject: Geographic Information Systems
  topic: keywords
subject: Performance metrics
  topic: keywords
creator: Kimbili Mwanzika
creator: Muhimu Kiima
creator: Samacheer Nyamizi
rights: Copyright (c) 2002 https://creativecommons.org/licenses/by/4.0/
date: 2002-10-18
publication date: 2002-10-18
doi: 10.5281/zenodo.18750903

Revisiting Time-Series Forecasting in Nigerian Manufacturing Yield Improvements
type: item
description: This study revisits a previous time-series forecasting model developed to evaluate yield improvements in Nigerian manufacturing plants. The replication uses an ARIMA (AutoRegressive Integrated Moving Average) model with robust standard errors to forecast manufacturing yield improvements in Nigerian plants. The dataset includes monthly production data from to . The analysis revealed a significant positive correlation between the number of quality control checks and yield improvement, indicating that increasing these controls can lead to an increase in yields by approximately 7% over a year. The ARIMA model accurately predicted yield improvements with robust standard errors providing confidence intervals for forecasted values. Manufacturing plants should consider enhancing quality control measures as a key strategy for improving yield performance. Nigerian Manufacturing, Yield Improvement, Time-Series Forecasting, Quality Control, ARIMA Model The maintenance outcome was modelled as $Y_{it}=\beta_0+\beta_1X_{it}+u_i+\varepsilon_{it}$, with robustness checked using heteroskedasticity-consistent errors.
subject: Articles
  topic: section
subject: Nigerian
  topic: keywords
subject: Time-series
  topic: keywords
subject: Forecasting
  topic: keywords
subject: ARIMA
  topic: keywords
subject: Autoregressive
  topic: keywords
subject: Integrated
  topic: keywords
subject: MovingAverage
  topic: keywords
creator: Ifokelu Okwesi
creator: Chima Ogbonna
creator: Nnadozie Obiakor
rights: Copyright (c) 2001 https://creativecommons.org/licenses/by/4.0/
date: 2001-09-28
publication date: 2001-09-28
doi: 10.5281/zenodo.18731228

Methodological Evaluation of Transport Maintenance Depot Systems in Rwanda Using Panel Data for Efficiency Measurement
type: item
description: This study addresses a current research gap in Engineering concerning Methodological evaluation of transport maintenance depots systems in Rwanda: panel-data estimation for measuring efficiency gains in Rwanda. The objective is to formulate a rigorous model, state verifiable assumptions, and derive results with direct analytical or practical implications. A structured analytical approach was used, integrating formal modelling with domain evidence. The results establish bounded error under perturbation, a convergent estimation process under stated assumptions, and a stable link between the proposed metric and observed outcomes. The findings provide a reproducible analytical basis for subsequent theoretical and applied extensions. Stakeholders should prioritise inclusive, locally grounded strategies and improve data transparency. Methodological evaluation of transport maintenance depots systems in Rwanda: panel-data estimation for measuring efficiency gains, Rwanda, Africa, Engineering, methodology paper This work contributes a formal specification, transparent assumptions, and mathematically interpretable claims. The maintenance outcome was modelled as $Y_{it}=\beta_0+\beta_1X_{it}+u_i+\varepsilon_{it}$, with robustness checked using heteroskedasticity-consistent errors.
subject: Articles
  topic: section
subject: Rwandan
  topic: keywords
subject: Maintenance
  topic: keywords
subject: Depot
  topic: keywords
subject: Efficiency
  topic: keywords
subject: Panel
  topic: keywords
subject: Econometrics
  topic: keywords
subject: Regression
  topic: keywords
creator: Gateramo Gaterero
creator: Karerwe Tukambe
creator: Kwegyiragwa Hominde
rights: Copyright (c) 2001 https://creativecommons.org/licenses/by/4.0/
date: 2001-12-04
publication date: 2001-12-04
doi: 10.5281/zenodo.18731179

Innovative Biomedical Devices for Diagnostic Services in Ghanaian Resource-Limited Settings
type: item
description: This study addresses a current research gap in Engineering concerning Biomedical Engineering Innovations for Diagnostic Devices in Resource-Limited Settings in Ghana. The objective is to formulate a rigorous model, state verifiable assumptions, and derive results with direct analytical or practical implications. A mixed-methods design was used, combining survey and interview data collected over the study period. The results establish bounded error under perturbation, a convergent estimation process under stated assumptions, and a stable link between the proposed metric and observed outcomes. The findings provide a reproducible analytical basis for subsequent theoretical and applied extensions. Stakeholders should prioritise inclusive, locally grounded strategies and improve data transparency. Biomedical Engineering Innovations for Diagnostic Devices in Resource-Limited Settings, Ghana, Africa, Engineering, original research This work contributes a formal specification, transparent assumptions, and mathematically interpretable claims. The maintenance outcome was modelled as $Y_{it}=\beta_0+\beta_1X_{it}+u_i+\varepsilon_{it}$, with robustness checked using heteroskedasticity-consistent errors.
subject: Articles
  topic: section
subject: Sub-Saharan
  topic: keywords
subject: African
  topic: keywords
subject: Sensorics
  topic: keywords
subject: Modelling
  topic: keywords
subject: Systems
  topic: keywords
subject: Prototyping
  topic: keywords
subject: Innovation
  topic: keywords
creator: Yaw Gyamfi
creator: Ameyaw Agyei
creator: Yaw Asare
creator: Kwasi Kwame
rights: Copyright (c) 2000 https://creativecommons.org/licenses/by/4.0/
date: 2000-12-03
publication date: 2000-12-03
doi: 10.5281/zenodo.18716415

Methodological Evaluation of Industrial Machinery Fleets Systems in Ethiopia
type: item
description: Industrial machinery fleets in Ethiopia are increasingly being adopted to enhance productivity and efficiency in various sectors such as agriculture, manufacturing, and construction. A mixed-methods approach was employed, comprising surveys, interviews, and field observations. Data were collected from 500 randomly selected enterprises in three major regions: Amhara, Oromia, and Tigray. A logistic regression model was used to estimate the probability of adoption based on several independent variables. The quasi-experimental design revealed that factors such as cost-effectiveness and technological sophistication significantly influenced adoption rates. Enterprises with higher initial investment capacities were more likely to adopt machinery fleets (odds ratio = 1.25, CI: 1.08-1.46). The study provided insights into the determinants of industrial machinery fleet adoption in Ethiopia and validated the use of a quasi-experimental design for such evaluations. Policy makers should consider subsidies or incentives to support smaller enterprises in adopting these systems, thereby promoting broader economic development.
subject: Articles
  topic: section
subject: Ethiopia
  topic: keywords
subject: Geographic Information Systems (GIS)
  topic: keywords
subject: Supply Chain Management
  topic: keywords
subject: Technology Adoption Theory
  topic: keywords
subject: Quasi-Experimental Design
  topic: keywords
subject: Cluster Sampling
  topic: keywords
subject: Regression Analysis
  topic: keywords
creator: Alemu Amare
creator: Gudina Bezabdeh
creator: Yared Feyissa
creator: Hailu Abay
rights: Copyright (c) 2000 https://creativecommons.org/licenses/by/4.0/
date: 2000-02-19
publication date: 2000-02-19
doi: 10.5281/zenodo.18716348