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JSRI papers: Recent submissions

Now showing items 21-39 of 39

Comparison of ANN-NARX, SMAR-LTF and LPMLTF Flood Forecasting Models in the Nzoia Basin, Kenya

Gathee, Nallan G.; Odera, Patroba A. (JKUAT, 2016-09-21)

Flooding is a perennial problem that occurs along several riverine environments, causing loss of property and human lives. The Nzoia Basin in Kenya is one of the areas prone to annual flooding, especially the lower reaches ...
An Experimental Investigation on Engine Performance and Emission of a Varied Injection Pressures Compression Ignition Croton-Diesel Blends Engine

Maswai, Obadiah; Kiplimo, Robert; Ndiritu, Hiram (JKUAT, 2016-09-19)

In this study, a direct injection compression ignition (DICI) engine was modified to utilize croton esters-diesel blends in equal ratio and at varied fuel injection pressures. The main aim of this research is tomake use ...
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 ...
Assessment of the potential for utilization of sugarcane derived press mud for biogas generation in South Nyanza sugarcane zones, Kenya

Nyonje, E. O; Njogu, P.; Kinyua, R. (JKUAT, 2016-09-19)

Sugar industry produces a number of by-products during the process of sugar production such as bagasse, press mud or filter cake, ash, mill effluent, and trash. The press mud from the clarifiers is rich in organic matter ...
Accretion Control in Sponge Iron Production Kiln using Fuzzy Logic

Mharakurwa, Edwell T.; Nyakoe, George N.; Ikua, Bernard W. (JKUAT, 2016-09-19)

Sponge iron is the product generated by direct reduction of iron ore with aid of either carbon or natural gas under controlled temperatures and pressures within a rotary kiln. However the performance of rotary kilns is ...
Characteristics of Earth Blocks Stabilized With Rice Husk Ash and Cement

Ronoh, Victor; Kaluli, James Wambua; Too, Jonah Kiptanui (Journal of Sustainable Research in Engineering, 2016-09-14)

For construction purposes, soil is usually stabilized using lime and/or cement, both of which are expensive. This study investigated the feasibility of using Rice Husk Ash (RHA) as a partial replacement of cement in the ...
Design and Testing of a Low Cost and Higher Efficient Savonius Wind Turbine’s Rotor Blade for Low Wind Speed Applications

Kasera, Alice A.; Ochieng, Francis X.; Kinyua, Robert (Journal of Sustainable Research in Engineering, 2016-09-14)

Studies indicate that vertical axis wind turbines provide a more reliable energy conversion technology as compared to horizontal axis wind turbines, especially in areas of lowly rated and/or uncertain wind speeds. The ...
Combustion and Emission Characteristics of a Premixed Charge Compression Ignition Engine

Kiplimo, Robert; Tomita, Eiji; Kawahara, Nobuyuki; Yokobe, Sumito (JKUAT, 2016-09-19)

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 ...
An Experimental Investigation on Engine Performance and Emission of a Varied Injection Pressures Compression Ignition Croton-Diesel Blends Engine.

Maswai, Obadiah Kipkemei; Kiplimo, Robert; Ndiritu, Hiram (SRI, JKUAT, 2016-08-03)

In this study, a direct injection compression ignition (DICI) engine was modified to utilize croton esters-diesel blends in equal ratios and at varied fuel injection pressures. The main aim of this research is to make use ...
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 ...
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)

JOURNAL OF SUSTAINABLE RESEARCH IN ENGINEERING Notifications View Subscribe Information For Readers For Authors For Librarians User Username Password Remember me Journal ...
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 ...
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 ...
An Experimental Investigation on Engine Performance and Emission of a Varied Injection Pressures Compression Ignition Croton-Diesel Blends Engine.

Obadiah, Kipkemei Maswai; Obadiah, Kipkemei Maswai; Robert, Kiplimo; Hiram, Ndiritu (SRI JKUAT, 2016-07-21)

In this study, a direct injection compression ignition (DICI) engine was modified to utilize croton esters-diesel blends in equal ratios and at varied fuel injection pressures. The main aim of this research is to make use ...
Application of the Maturity Method for Improved Concrete Quality Control in Kenya

Allan, Mugambi Kaburu; James, Wambua Kaluli (SRI JKUAT, 2016-07-21)

In Kenya, quality control of concrete involves taking samples of poured concrete and preparing specimens which are then stored under controlled conditions in laboratories. The specimens are subjected to strength testing ...
Characteristics of Earth Blocks Stabilized With Rice Husk Ash and Cement

Too, Jonah Kiptanui; Wambua, Kaluli; Ronoh, Victor (SRI JKUAT, 2016-07-21)

For construction purposes, soil is usually stabilized using lime and/or cement, both of which are expensive. This study investigated the feasibility of using Rice Husk Ash (RHA) as a partial replacement of cement in the ...
Evaluation of Greenhouse Gas Emissions along the Small-Holder Coffee Supply Chain in Kenya

Maina, Joan Jepngetich; Mutwiwa, Urbanus; Githiru, Mwangi; Kituu, Gareth (JOURNAL OF SUSTAINABLE RESEARCH IN ENGINEERING, 2016-07-21)

Coffee plays an important role in sustaining millions of livelihoods around the world. The production of Arabica coffee is greatly affected by the changing climate. Besides suffering from changing climate, coffee is also ...
Evaluation of Greenhouse Gas Emissions along the Small-Holder Coffee Supply Chain in Kenya

Joan.J. Maina1*, Urbanus. N. Mutwiwa1, Gareth. M. Kituu1 and M. Githiru2 1Department of Agricultural and Bio-systems Engineering School of Bio systems and Environmental Engineering, Jomo Kenyatta University of Agriculture and Technology, P.O. BOX 62000-00200 Nairobi 2Wildlife Works, P.O. BOX 310-80300 Voi (SRI, JKUAT, 2016-07-11)

Coffee plays an important role in sustaining millions of livelihoods around the world. The production of Arabica coffee is greatly affected by the changing climate. Besides suffering from changing climate, coffee is also ...
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 ...

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