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Browsing Sustainable Research and Innovation Proceedings by Title

Now showing items 1-20 of 83

1D to 3D Coupling of an Infinitesimal Width Moving Laser on a Silicon Substrate

Mulembo, T.; Ikua, B.; Keraita, J.; Niyibizi, A.; Kagiri, C. (Proceedings of 2013 Mechanical Engineering Conference on Sustainable Research and Innovation, 2017-05-24)

Micromechanical components such as acceleration sen-sors in car safety systems and micro-fluidic circuits are normally made of monocrystalline silicon. The modeling of laser microma-chining of complex shapes using silicon ...
Acceptability of Interlocking Soil Block Technology in Kenya’s Construction Industry

Fundi, Sanewu, Isaac; Kaluli, J.W.; Kinuthia, J. (JKUAT-COETEC, 2024-09-19)

Interlocking stabilized soil block (ISSB) is a technology that encourages utilization of locally available building resources. Desirable features of the ISSB technology include; aesthetic value, ease of construction and ...
Adapting Information Technology as a Contrivance to Enhance Sustainable Entrepreneurship through Handy Banking Habits

Achieng, Maureen (JKUAT, 2017-04-11)

This article reports the work done after exploring the challenges faced by both the Small and Medium Enterprises (SMEs) and the banking industry in the management of finances; especially the payment of utility bills and ...
Adaptive Control Strategy to Steer and Drive an Autonomous 4ws4wd Ground Vehicle

Simotwo, Job C.; Kamau, Stanley I.; Hinga, Peterson K. (JKUAT-COETEC, 2024-09-19)

Autonomous vehicles are equipped with an increasing number of actuators to actively control the longitudinal and lateral dynamics of the vehicle. Amidst difference in terrains and roads that an autonomous vehicle drives ...
Analysis of Dissimilar Metal Welds: X3CRNIMO.13-4 (1.4313) & CarbonSteel S355J2+N

Kyalo, M. N.; Kimotho, J. K. (JKUAT-COETEC, 2024-09-19)

In manufacturing, many applications require welding of dissimilar materials. Stainless steel and carbon steel are often welded together in applications such as nuclear, hydro power, chemical, and petrochemical plants. ...
Analysis of Harmonic order levels at Power Lines to Improve the Power Quality

Ngoo, Livingstone; Nderu, J. N.; Ndungu, C.M. (COETEC, 2017-04-06)

This work aims at analysis and establishing harmonic levels at various points of KPLC power lines. It involved collection of harmonic order levels from generation, distribution and point of common coupling (PCC). The data ...
The Authorization of the use of TV White Spaces: The Kenyan Scenario

Mureu, E.; Kihato, P.; Langat, P. (JKUAT-COETEC, 2024-08-12)

The TV White Spaces (TVWS) are “portions of spectrum left unused by TV broadcasting services”, in the Ultra High Frequency (UHF) band. One of the proposed application of the TVWS is in the provision of fixed wireless ...
Automatic Modulation Classifier Based Spectrum Sensing in the context of Cognitive Radio

Mureu, E.; Kihato, P.; Langat, P. (JKUAT-COETEC, 2024-08-15)

Cognitive Radio (CR) is one of the technologies that promises to enhance the spectral efficiency, by having secondary users access channel(s) allocated to a primary user but are idle in a given area or time. Spectrum sensing ...
Battery and Motor Sizing for Electric Tricycles

Wanene, A.G; Kusimba, B. W.; Mulwa, P.M.; Chege, S.; Oloo, J. O.; Lang'at, E. C.; Aoki, S. (JKUAT-COETEC, 2024-05-29)

In the electrification of bicycles, tricycles, wheelchairs, and other velocipedes, there is a need to size the battery and the motor according to the expected load. This is because oversizing these components leads to ...
BIM Awareness: The Kenyan and UK Scenarios

Kimani, T. N.; Jallow, Haddy; Njuguna, B. M.; Alkizim, A. O (JKUAT-COETEC, 2024-09-19)

In the global context, Building Information Modeling (BIM) is a catalytic agent for innovation, productivity and efficiency in the construction industry. BIM adoption in Kenya is rare whereas the volume of construction is ...
A Canonical Model of Organizational Performance and its Determinants; a Case of Local Contractors in Kenya

Simon, Shadrack Mutungi; Prof. Njuguna, Mugwima; Prof. Kivaa, Titus Peter (JKUAT-SABS, 2024-08-13)

Local contractors in Kenya have been reported to have a myriad of weaknesses including operational inefficiencies, poor growth, reduced profitability, poor technology, ineffective strategies, and weak management structures ...
Characterisation and Quantification of Bioprocessing Effluents from Coffee, Dairy and Tannery Plants

Ondiba, Jared O.; Kanali, Christopher L.; Gathitu, Benson B; Ondimu, Stephen N. (JKUAT-COETEC, 2024-08-14)

There is an increasing rate of environmental pollution resulting from high emission rates from bioprocessing industries in Kenya. This study provides information on the characterization of bioprocessing effluents collected ...
Characterization of nanostructured rapeseed oil as an automotive biodiesel

Ong’era, Christopher M.; Gathitu, Benson B.; Murunga, Sylvia I.; Kuloba, Patrick W.; Gathirwa, Jeremiah W. (JKUAT-COETEC, 2024-08-14)

Nanoemulsions produced by the use of co-solvents show unexpected thermodynamic stability without the use of conventional surfactants. We study the system rapeseed oil – ethanol – 1-heptanol to be able to understand the ...
Climate Change Mitigation through Standards and Labels

Maina, Karuga (COETEC, 2017-04-06)

The Standards and Labeling Programme in Kenya is a 5year Government of Kenya initiative being implemented under the Ministry of Industrialization. This Climate Change Mitigation Programme jointly funded by the United Nation ...
Coco peat Drying Techniques: A Review

Kilee, Mercy N.; Oketch, Peter O.; Ndiritu, Hiram M. (JKUAT-COETEC, 2024-05-31)

Coco peat is a light soil-like material that is created as a by-product of the extraction of coco coir from coconut fibre. When wet, coco peat is a bulky material and possess a challenge in transportation. Drying removes ...
Combustion and Emission Characteristics of a Low Emission and Highly Efficient PCCI Diesel Engine

Yokobe, Sumito; Kawahara, Nobuyuki; Tomita, Eiji; Kiplimo, Robert (COETEC, 2017-04-06)

The combustion and emission characteristics of a low emission and highly efficient premixed charge compression ignition diesel engine operated with moderate amount of exhaust gas recirculation was investigated in a single ...
A comparative analysis of additive manufacturing filaments developed from recycled high-density polyethylene and recycled polypropylene: Extrusion process optimization

Andanje, Maurine N.; Mwangi, James Wamai; Mose, Bruno R.; Carrara, Sandro (JKUAT-COETEC, 2024-05-29)

Plastic solid waste continue to present opportunities. The use of recycled plastic material in additive manufacturing, also known as 3D printing, is expected to make the process more sustainable and help to address the ...
Comparative Analysis of Low Global Warming Working Fluids for Geothermal-Solar Hybrid Cycle

Venomhata, Hofni; Oketch, Peter; Gathitu, Benson; Chisale, Paul (JKUAT-COETEC, 2024-05-31)

Low quality brine discharged from the separator at Olkaria II power plant is normally reinjected back into the ground. Utilizing waste brine in an organic rankine cycle technology can result in cycle efficiency of around ...
Comparing the performance of ANFIS, LOG10-ANFIS, LOG10-PSO-ANFIS and LOG10-PSO-ANFIS with random input in indoor Wi-Fi Signal propagation prediction

Omae, M. O,; Ndungu, E. N; Kibet, P. L. (JKUAT-COETEC, 2024-09-19)

With the increase in the use of mobile devices fitted with wireless local area networks (WLANS) technologies there is need for accelerated studies on these systems to improve on the quality of service (QoS) provided to the ...
Comparison of Software Packages for Unbalanced Load Flow Analysis: ETAP Versus PSCAD

Fokui, Willy Stephen Tounsi; Saulo, Michael; Ngoo, Livingstone (JKUAT-COETEC, 2024-05-31)

Power systems analysis also called load flow analysis is a very crucial aspect of power systems as it helps in enabling the effective planning and operation of the power system. The prime objective of load flow analysis ...

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