Browsing Faculty of Science & Technology (FST) by Title
Now showing items 2156-2175 of 4283
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Investigation of the impact of salt and sand harvesting activities on the Timboni well field, Gongoni, Malindi District, Kenya
(2000)The area studied is a north-south oriented, V-shaped, clayey lagoonal depression bordered by Pleistocene sands on the west and Recent dune sands on the east. The freshwater aquifer in the area is the main source of potable ... -
An investigation of the repeatability of calibration factors in gamma-ray spectrometry of geological materials
(Department of Physics, University of Nairobi, 2004)A NaI(Tl)-based gamma spectrometer for the analysis of geological materials was calibrated using the IAEA reference materials RGU-1, RGTH-1 and RGK-1. To simulate typical geological samples, two additional standards were ... -
An investigation of the structure beneath Magadi area in Southern Kenya Rift using gravimetric data
(School of Physical Sciences, 2012)Magadi area is located in the southern part of the Kenyan rift, an active continental rift that is part of the East African Rift system. Local seismic activity monitored previously around Lake Magadi revealed an earthquake ... -
An investigation of the transport and dispersion of atmospheric pollutants over east Africa during the Ol doinyo lengai volcanic eruption in July 2007 and march 2008
(2012)Explosive volcanic eruptions affect climate by injecting gases and aerosol particles into the troposphere and stratosphere. Only if the eruption cloud is rich in SO2 will the eruption produce a long-lived aerosol cloud, ... -
An investigation of the transport and dispersion of atmospheric pollutants over Nairobi City
(University of Nairobi, 2014)Current rapid deterioration of air quality in most urban can be majorly attributed to ongoing urbanization. This study simulates air pollutant dispersal over Nairobi city using Hybrid Single Particle Lagrangian ... -
An Investigation of Thermal Shock in Porous Clay Ceramics
(School of Physical Sciences, 2011)The thermal shock resistance of porous ceramic materials is often characterized by the Hasselman parameters. However, in other scenarios,the room-temperature residual strengths after thermal shock are also used to quantify ... -
Investigation on meteorological time series in the Mediterranean basin
(University of NairobiCollege of biological and physical science, 1993) -
An Investigation on the Effectiveness of Design Ideation Using TRIZ
(2006)Design ideation continues to be one of the mysterious and yet a very important part of the design process. In the past, there have been studies related to how people generate ideas, why some are more productive in idea ... -
An investigation to establish the presence, quality and rank of coal from parts of Mui basin in Kenya
(University of Nairobi, 2013)A study was conducted in which Seventy nine samples of coal were collected from four different wells of the Mui basin between November, 2005 and July, 2006, and analyzed for calorific value, fixed carbon, moisture content, ... -
Investigations into the Tectonic Faults on Magadi Geothermal Field Using Ground and Aeromagnetic Data
(2013)Lake Magadi area of the Kenya Rift is characterized by faulting, tectonic activities and geothermal resources. The geothermal potential of the graben in the southern part of the lake was investigated using magnetic methods ... -
Investigations of electrical properties of weathered layers in the Yala area, western Kenya, using resistivity soundings
(1991)Investigations in many parts of the world have indicated that resistivity of saprolite (a chloritization zone at the base of the weathering profile) depends uniquely on the underlying rock type. A study of electrical ... -
Investigations of seasonal and environmental influence on biting and immature populations of Culicoides cornutus De Meillon in Kenya
(University of Nairobi,School of Biological Sciences, 1975) -
Investigations on the biology and control of the potato tuber moth, phthorimaea (gnorimoschema) operculella zeller. (lepidoptera:gelechiidae) in Kenya.
(Facult of Science, University of Nairobi, 1980) -
Investment by Micro and Small Enterprises in Electricity Generation: Opportunities and Challenges
(Department of Chemistry, 2001) -
Irrigation Scheme or mosquito hazard A case study in Mwea Irrigation Scheme
(1992)A survey of the mosquito fauna in the Mwea-Tebere Irrigation Scheme in Kenya was conducted between 1984 and 1985. Two genera, Anopheles and Culex were found indoors in large numbers. The major species were Anopheles gambiae ... -
Irritant Principles of Mezereon Family (thymeleaceae), New skin irritants and tumour promoters of the daphnane and 1, 2-alkyldaphnane type from Synaptolepis kirkii and S. Retusa.
(University of NairobiCollege of biological and physical science, 1988)Seventeen mostly new, skin irritant diterpene esters (DTE) of the daphnane and 1 alpha-alkyldaphnane types were isolated from roots of Synaptolepis kirkii and Synaptolepis retusa. The parent alcohols of the daphnane types ... -
Is the fast growth of an equatorial Micropterus salmoides population explained by high water temperature
(School of Biological Sciences, University of Nairobi, Nairobi, KenyaDepartment of Biology, University of Leicester, Leicester, UKCentre for Conservation Ecology and Environmental Change, School of Conservation Sciences, Bournemouth University, Poole, Dorset, UK, 2010)Marginal increment analysis of scales collected from the introduced Micropterus salmoides population of Lake Naivasha, Kenya revealed the formation of an annual growth check, validating their use to age individual fish. ... -
Isoflavanones and 3-Methoxyflavones from the Stem Bark of Platycelphium voense
(Department of Chemistry, Kyambogo University,Department of Chemistry, University of Nairobi,Department of Chemistry, University of Gothenburg,School of Pharmacy, University of Nairobi,, 2011)Platycelphium (Engl.) Wild (Leguminosae) is a monotypic genus that occurs in the drier parts of Eastern Africa (Gillett et 01., 1971). Prior to this report, the only phytochemical studies on Platycelphium voense describe ... -
Isoflavones and Rotenoids from the Leaves of Millettia oblata ssp. teitensis
(University of Nairobi, 2017): A new isoflavone, 8-prenylmilldrone (1), and four new rotenoids, oblarotenoids A−D (2−5), along with nine known compounds (6−14), were isolated from the CH2Cl2/CH3OH (1:1) extract of the leaves of Millettia oblata ... -
Isoflavones and rotenoids from the leaves of millettia oblata ssp. Teitensis.
(University of Nairobi, 2017)A new isoflavone, 8-prenylmilldrone (1), and four new rotenoids, oblarotenoids A-D (2-5), along with nine known compounds (6-14), were isolated from the CH2Cl2/CH3OH (1:1) extract of the leaves of Millettia oblata ssp. ...