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Browsing Journal of Agriculture, Science and Technology by Issue Date

Browsing Journal of Agriculture, Science and Technology by Issue Date

Now showing items 21-40 of 199

AN INVESTIGATION OF THE UTILITY SCALE WIND ENERGY FOR NORTH-EASTERN KENYA REGION

Kamau, J. N.; Kinyua, R.; Gathua, J. K. (JKUAT, 2016-10-05)

In the present study, the wind energy potential for Garissa (0o28’S, 39o38’E) and Marsabit (2o 19’N, 37o 58’E), both rural towns in north-eastern Kenya have been statistically analyzed on a 6-year measured hourly time ...
Assessment of technical efficiency of open field tomato production in Kiambu county, Kenya (stochastic frontier approach)

Najjuma, E.; Kavoi, M. M.; Mbeche, R. (JKUAT, 2016-10-06)

The study conducted an estimate of the mean technical efficiency and the determinants of technical efficiency for the open field tomato farmers in Kiambu, Kenya. A multistage sampling technique was used to draw a sample ...
Cashew nut shell liquid: an agricultural by-product with great potential for commercial exploitation in Kenya

Mwangi, P. M.; Kareru, P. G.; Thiong’o, G.; Mohammed, A. N. (JKUAT, 2016-10-06)

Cashew nut shell liquid (CNSL) is the main by‐product from cashew nuts processing and is obtained during roasting of the nuts by the oil‐bath method. It may also be obtained through expression of residual shells or solvent ...
Comparison of some panel data regression model estimators using simulated data

Megesa, J. T.; Chelule, J. C.; Odhiambo, R. O. (JKUAT, 2016-10-06)

This paper presents estimation of panel data regression models with individual effects. We discuss estimation techniques for both fixed and random effects panel data regression models. We derive two-stage least squares ...
Biosafety practices and biomedical hazards among the support staff of Kenyatta National Hospital, Mbagathi District Hospital and Kiambu District Hospital in Kenya

Onguso, M J; Kiiyukia, C; Makhonge, P; Nyakundi, W O (2016-10-06)

Biomedical hazards, also known as infectious hazards or medical hazards are defined as hazards generated during the diagnosis, testing, treatment, research or production of biological products for humans or animals. This ...
Changes in some urine parameters in Vervet monkey model of Trypanosomiasis: towards non‐invasive diagnosis of sleeping sickness

Waita, I. M.; Karanja, S. M.; Kiarie, A. G.; Maina, N. W. (JKUAT, 2016-10-06)

The current diagnostic procedures for human African trypanosomiasis (HAT) are invasive. Urine being a non‐invasive sample could be an alternative to the current screening that is based on blood sampling and cerebrospinal ...
Consumer willingness to pay for quality beef in Kampala, Uganda

Alinda, F.; Kavoi, M. M.; Mugisha, J. (JKUAT, 2016-10-06)

Limited information on beef consumer preferences and beef quality are among the major challenges that impede development of Uganda’s beef industry. This study aimed at determining the quality attributes and socio-economic ...
Dynamics of supply chain management in the Kenyan construction Industry

Kimondo, J. M.; Mutuku, R.N.; Winja, M. (JKUAT, 2016-10-06)

Construction project failures in Kenya are evident throughout the country and continue to draw great concern to all stakeholders as a result of consequent economic and social impacts. Supply chain management (SCM) practices ...
Deformation and force characteristics caused by inclined tines in loam soil with moisture content below liquid limit

Makanga, J. T.; Salokh, V. M.; Gee-Clough, D. (2016-10-06)

Deformation and force characteristics caused by flat rigid tines (inclined at an angle of 500 to the horizontal soil surface) in loam soil with moisture content below the liquid limit were studied using a glass-sided ...
Design and implementation of a microprocessor based room illumination control system

Owiti, E. O.; Mutuku, J. N.; Ongeri, R. M. (JKUAT, 2016-10-06)

This paper describes the development of a microprocessor based room illumination control system that offers advantage of improved efficiency in the use of electrical energy and reduced cost of electricity over manually ...
Voltage stability analysis using a modified continuation load flow and optimal capacitor bank placement

Muriithi, C M; Ngoo, L. M; Nyakoe, G N; Njoroge, S N (Journal of Agricultural Science and Technology, 2017-01-17)

This paper addresses the rising problem of identifying the voltage stability limits of load buses in a power system and how to optimally place capacitor banks for voltage stability improvement. This paper uses the concept ...
The effect of sawdust as a bulking agent on the in-vessel composting of food waste in a manually-turned drum

Mayabi, A. O. (Journal of Agricultural Science and Technology, JKUAT, 2017-01-17)

Composting is one approach for recycling organic waste, that mostly consists of kitchen and food residue waste. This can be done at household level by use of in-vessel composters. Sawdust as a bulking agent was used to ...
The Heavy Metal Content of Crops Irrigated With Untreated Wastewater: A Case Study of Nairobi, Kenya

Kaluli, J. W.; Home, P. G.; Githuku, C. (Journal of Agricultural Science and Technology, JKUAT, 2017-01-17)

Use of untreated wastewater for irrigation could have devastating effects on crop quality. A study was conducted to determine the content of lead, cadmium and chromium in food crops irrigated with untreated wastewater ...
The Effect of Surface Albedo and Grain Size Distribution on Evaporation Losses in Sand Dams

Nyadawa, M. O.; Mayabi, A. O.; Kimathi, M. (Journal of Agricultural Science and Technology, JKUAT, 2017-01-17)

Sand dams are very useful in arid and semi arid lands (ASALs) as facilities for water storage and conservation. Soils in ASALs are mainly sandy and major water loss is by evaporation and infiltration. This study investigated ...
Wireless Transmission of Metering Data From a Photovoltaic Solar Home System Via Global Systems for Mobile Communication (GSM) Short Message Service (SMS

Wanderi, M.; Mulati, D. M.; Thoruwa, T. F. N. (Journal of Agricultural Science and Technology, 2017-01-17)

This paper focuses on the area of remote solar home system metering in an effort to bridge solar energy management in the industry with information technology (IT). A wireless platform was designed using ordinary mobile ...
The Effect of Spatial Planning Patterns on Distribution of Pedestrians in Public Spaces of Residential Neighbourhoods in the City of Nairobi

Makworo, M.; Moirongo, B. O.; Mireri, C. (Journal of Agricultural Science and Technology, JKUAT, 2017-01-17)

This study focuses on public spaces of residential neighbourhoods in the City of Nairobi. It establishes various spatial characteristics, hence patterns, that have a bearing on the distribution of pedestrians therein. A ...
Water and Water - Borne Diseases in North Masaba District, Kenya

Nyagwencha, J . M .; Kaluli, J . W .; Home, P . G.; Hunja, M . (Journal of Agricultural Science and Technology, 2017-01-17)

Approximately 1.1 billion people in the world lack access to safe drinking water. As a result 1.8 million people mostly in developing countries, and 90% of whom are children under 5, die every year from diarrheal diseases ...
The effect of pumping water from wells in an aquifer

Warui, K. G.; Stower, G.X.; Sigey, J. K. (Journal of Agricultural Science and Technology, JKUAT, 2017-01-17)

Groundwater is sensitive to the climate change and agricultural activities in arid and semi-arid areas. Over the past several decades, human activities, such as groundwater extraction for irrigation, have resulted in ...
The Effect of Farmyard Manure and Calcium Ammonium Nitrate Fertilisers on Micronutrient Density (Iron, Zinc, Manganese, Calcium and Potassium) and Seed Yields Of Solanum Villosum (Black Nightshade) and Cleome Gynandra (Cat Whiskers) on Eutric Nitisol

Hutchinson, M. J. (Journal of Agricultural Science and Technology, JKUAT, 2017-01-17)

The overall objective of the study was to investigate the effect of farmyard manure (FYM) and calcium ammonium nitrate (CAN) and cooking on micronutrient content (iron, zinc, potassium, calcium, manganese) and seed yield ...
Towards a National Policy on Wastewater Reuse in Kenya

Kaluli, J. W.; Githuku, C.; Home, P.; Mwangi, B. M. (Journal of Agricultural Science and Technology, JKUAT, 2017-01-17)

Kenya is a water-scarce country with the capital city, Nairobi, receiving less than 100 l/capita/day. Potable water for irrigation and industrial use is generally unavailable, and this calls for alternative water sources. ...

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