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Now showing items 18-37 of 39

Improving the Bandwidth of a Circular Microstrip Patch Antenna through Shape Modification

Benard Kipkorir Langat, Kibet P. Langat, Stephen Musyoki (SRI, JKUAT, 2016-08-03)

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Investigation on Hardness of Gravity Die Cast Secondary Al-10Si Piston Alloy with Trace Addition of Sr, Fe and Mn

Kosgey, B. K.; Maranga, S. M.; Kihiu, J. M.; Ando, Y. (JKUAT, 2016-09-22)

This paper investigates the effect of minor elements on Brinell hardness properties of Al-10Si alloy. This investigation was carried out with the aim of improving the properties of recycled cast Al-Si alloys so as to enhance ...
Loop Mediated Isothermal Amplification for Detection of Trypanosoma brucei gambiense in Urine and Saliva Samples in Nonhuman Primate Model

Ngotho, Maina; Kagira, John Maina; Gachie, Beatrice Muthoni; Karanja, Simon Muturi; Waema, Wambua Waema; Maranga, Dawn Nyawira; Maina, Naomi Wangari (JKUAT, 2016-09-21)

Human African trypanosomiasis (HAT) is a vector-borne parasitic zoonotic disease. The disease caused by Trypanosoma brucei gambiense is themost prevalent in Africa. Early diagnosis is hampered by lack of sensitive diagnostic ...
Maintenance Strategy Selection using Analytic Hierarchy Process

Muinde, Peter M; Muchiri, Peter N; Ikua, Bernard W. (JKUAT, 2016-09-22)

Maintenance of industrial equipment is faced with the challenges of lack of systematic approach in setting maintenance instructions and lack of robust maintenance decision making. A maintenance strategy is always followed, ...
Neuro-fuzzy Control of Laser Percussion Drilling

Ruthandi, Martin M.; Ikua, Bernard W.; Nyakoe, George N.; Keraita, James N. (JKUAT, 2016-09-22)

Non-Conventional methods have recently been employed in the drilling of materials such as super alloys which are hard to machine using mechanical conventional methods. These materials are mainly used in turbines in the ...
Nonparametric Mixed Ratio Estimator for a Finite Population Total in Stratified Sampling

Orwa, George Otieno; Otieno, Romanus Odhiambo; Mwita, Peter Nyamuhanga (Pakistan Journal of Statistics and Operation Research, 2016-09-14)

We propose a nonparametric regression approach to the estimation of a finite population total in model based frameworks in the case of stratified sampling. Similar work has been done, by Nadaraya and Watson ...
Performance Analysis of a Direct Drive Permanent Magnet Generator for Small Wind Energy Applications

Akello, Philip Oketch; Ochieng, Francis Xavier; Kamau, Joseph Ngugi (JKUAT, 2016-09-22)

This paper describes performance analysis of a direct drive Axial Flux Permanent Magnet (AFPM) generator developed for small scale wind energy applications. The design process approach began by a field survey intended to ...
The Performance of a Resistance-Capacitance Type Pulse Generation Circuit in Electrical Discharge Machining

Kabini, Karanja; Bojer, Sile K; Ikua, Bernard W.; Kihiu, John M.; Nyakoe, George N.; Wamai, James W. (JKUAT, 2016-09-30)

The Electrical Discharge Machining (EDM) Process is complex in nature partly due to the mechanism of material removal, and, partly due to the presence of many machining parameters. This complexity of the EDM process has ...
Performance of Activated Carbon Prepared from Sawdust as an Adsorbent for Endosulfan Pesticide

Kakoi, Beatrice; Kaluli, James Wambua; Thumbi, George; Gachanja, Anthony (JKUAT, 2016-09-22)

Pesticides are used world over to protect crops. However, these are poisonous chemicals, and consuming water contaminated with pesticides exceeding safe concentrations could negatively affect human health. A study was ...
Performance of Adaptive Bandwidth Allocation for Multimedia Handover Services in UMTS mobile Cellular Networks

Omosa, Edwin; Langat, Kibet; Musyoki, Stephen (JKUAT, 2016-09-22)

With the ever growing multimedia services in the telecommunication industry, Quality of Service (QoS) provisioning in cellular networks is becoming more challenging. Studies have suggested that QoS requirements can be ...
Performance of Adaptive Bandwidth Allocation for Multimedia Handover Services in UMTS mobile Cellular Networks

Musyoki, Stephen; Omosa, Edwin; Langat, Kibet (SRI JKUAT, 2016-07-21)

With the ever growing multimedia services in the telecommunication industry, Quality of Service (QoS) provisioning in cellular networks is becoming more challenging. Studies have suggested that QoS requirements can be ...
Performance of Adaptive Bandwidth Allocation for Multimedia Handover Services in UMTS mobile Cellular Networks

Edwin Omosa 1, Kibet Langat1 and Stephen Musyoki2 1Department of Telecommunication Engineering,Jomo Kenyatta University of Agriculture and Technology(JKUAT),P.O box 62000-00200, Nairobi, Kenya. 2Technical University of Kenya(TUK), Department of Electrical and Electronics Engineering, P.O. Box 52428, Nairobi, Kenya. (SRI, JKUAT, 2016-07-11)

With the ever growing multimedia services in the telecommunication industry, Quality of Service (QoS) provisioning in cellular networks is becoming more challenging. Studies have suggested that QoS requirements can be met ...
Performance of Aluminium A356 Alloy based Buckets towards Bending Forces on Pelton Turbines.

Mbiu, Richard N.; Maranga, S. M.; Ndiritu, Hiram (JKUAT, 2016-09-22)

Based on affordability, small turbines are forced to operate above optimum conditions in order to produce maximum power making them to fail under excessive water jet loading. Performance of Aluminium A356 alloy based Pelton ...
The Performance of an RC type Pulse Generation Circuit in Electrical Discharge Machining

Kabini, Samuel Karanja (SRI JKUAT, 2016-07-21)

The Electrical Discharge Machining (EDM) Process is complex in nature partly due to the mechanism of material removal, and, partly due to the presence of many machining parameters. This complexity of the EDM process has ...
Selecting an appropriate maintenance policy for Petroleum pipeline system

Unknown author (JKUAT, 30-09-20)

Petroleum pipelines are the most energy-efficient, safe, environmentally friendly, and economic way to transport oil and gas over long distances. Significant portions of many nations’ energy requirements are now transported ...
Simulation of Saturation Efficiency and Cooling Capacity of an Unloaded Near Infrared Reflecting Charcoal Cooler for On-farm Storage of Mango fruits

Korir, Meshack K.; Mutwiwa, Urbanus; Kituu, Gareth M.; Sila, Daniel N. (JKUAT, 2016-10-03)

Mango (Mangifera indica L.) fruit is a valuable fruit in Kenya due to its nutritive value and economic importance. However, at least 40 to 45% of mango fruit is lost during postharvest handling primarily due to inadequate ...
sing UNII-3 Wi-Fi Frequencies to Establish Long Distance Point-to-Point Links: Experimental Validation

Warutumo Mureithi, Kibet Langat, Ciira Maina, Vitalice Oduol (SRI, JKUAT, 2016-08-03)

This paper demonstrates the use of Unlicensed National Information Infrastructure (UNII-3), 5.725-5.825GHz, Wi-Fi frequencies, in the IEEE802.11a/n standard in setting up long distance point-to-point links, capable of ...
Strain Rate Effects on the Tensile Behavior of Fiber Bundles Isolated from Nerve Root

Tamura, Atsutaka; Murakami, Junji; Sone, Yuta; Koide, Takao (JKUAT, 2016-10-03)

Fresh porcine spinal cords (N = 5) were obtained at a local abattoir, and intact nerve roots were excised at cervical, thoracic, and lumbar levels using a surgical scalpel and fine forceps with a special caution. In total, ...
SWAT model parameter calibration and uncertainty analysis using the HydroPSO R package in Nzoia Basin, Kenya

Musau, J.; Sang, J.; Gathenya, J.; Luedeling, E.; Home, P. (JKUAT, 2016-10-03)

The parameter uncertainty in hydrological modelling has been accorded much attention in the recent past. Parameter uncertainty is a major source of overall model unreliability. In this study, the HydroPSO R package was ...
Transient Stability Analysis of the Kenyan Power System With Different Wind Generation Technologies

Orenge, Roy; Murithi, Christopher; Nyakoe, George (JKUAT, 2016-09-30)

Electrical power generation from wind is achieved using a number of generator technologies. The main technologies are the Squirrel Cage Induction Generators (SCIG) and Doubly Fed Induction Generators (DFIGs). In this paper, ...

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