Research Publications: Recent submissions
Now showing items 661-680 of 741
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Evaluation of candidate materials for SCWR turbine and balance of plant shielding
(Progress in Nuclear Energy; ScienceDirect, 2015-03)Since the coolant leaving the SCWR core contains an assortment of radioisotopes, it is necessary to identify appropriate materials for shielding ex-core components. Photon attenuation characteristics, photo-neutron production ... -
Developments of oil-free Bakelite resistive plate chambers for particle physics experiments
(Journal of Instrumentation; IOP Publishing, 2014-07)In this paper, we sumarized a Bakelite Resistive Plate Chamber (RPC) with non-oil surface treatment. This type of RPC has been installed and run smoothly in BESIII Muon identification system and Daya Bay cosmic Muon veto ... -
Simulation of (16)O (n, p) (16)N reaction rate and nitrogen-16 inventory in a high performance light water reactor with one pass core
(Applied Radiation and Isotopes; Elsevier, 2014-12)The rate of activation of the isotope (16)O to (16)N in a typical HPLWR one pass concept was calculated using MCNP code. A mathematical model was used to track the inventory of the radioisotope (16)N in a unit mass of ... -
Investigation of photoneutron and capture gamma-ray production in Pb and W under irradiation from 16N decay radiation
(Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms; Elsevier, 2015-09)Lead and tungsten are potential alternative materials for shielding reactor ex-core components with high 16N activity when available space limits application of concrete. Since the two materials are vulnerable to photonuclear ... -
Design and optimization of HPLWR high pressure Turbine gamma ray shield
(Nuclear Engineering and Design; Elsevier, 2015-04)This work proposes the optimum gamma ray shield thickness around the HPLWR high pressure turbine for different occupancy periods in the turbine building. Monte Carlo method was employed in the design process and only ... -
New Measurement of Antineutrino Oscillation with the Full Detector Configuration at Daya Bay
(PHYSICAL REVIEW LETTERS, 2015-05)We report a new measurement of electron antineutrino disappearance using the fully-constructed Daya Bay Reactor Neutrino Experiment. The final two of eight antineutrino detectors were installed in the summer of 2012. Including ... -
Search for a Light Sterile Neutrino at Daya Bay
(PHYSICAL REVIEW LETTERS, 2014-07)A search for light sterile neutrino mixing was performed with the first 217 days of data from the Daya Bay ReactorAntineutrinoExperiment. Theexperiment’suniqueconfigurationofmultiplebaselinesfromsix2.9GWth nuclear reactors ... -
Independent Measurement of θ13 via Neutron Capture on Hydrogen at Daya Bay
(Physical Review, 2014)A new measurement of the θ13 mixing angle has been obtained at the Daya Bay Reactor Neutrino Experiment via the detection of inverse beta decays tagged by neutron capture on hydrogen. The antineutrino events for hydrogen ... -
Radiometric assessment of natural radioactivity levels around Mrima Hill, Kenya
(International Journal of the Physical Sciences, 2011-07)Mrima Hill, located in the South coast of Kenya is known for high natural background radiation, due to the presence of radiogenic heavy minerals such as monazites and carbonatites. The activity concentration of 238U, 232Th ... -
Evaluation of permutite for removal of radiocobalt from nuclear wastewater
(Journal of Radioanal Nucl Chem, 2014-07)A synthetic zeolite, commercially available as permutite was tested for removing radiocobalt from aque- ous solutions by sorption. The sorption process was studied as a function of contact time, pH, ionic strength and solid ... -
Strategic HRM's role in strategic planning implementation by the high education training institutions in Kenya
(International Journal of Human Resource and Procurement, 2013-01)In the turbulent environment facing organizations, strategic human resource management (SHRM) is looked upon as the savior to the strategy implementation. Human resource or human capital is recognized as a major ... -
COMPARATIVE STUDY OF ENTERPRISE RISKS AND MANAGEMENT PRACTICES BETWEEN MICRO AND SMALL INDUSTRIES (MSIS) AND MEDIUM AND LARGE INDUSTRIES (MLIS) IN NAKURU MUNICIPALITY, KENYA
(European Journal of Business and Social Sciences, 2015-02)Micro and Small Enterprises cut across all sectors of the economy, providing a prolific source of employment, income and government revenue and contributes to poverty reduction. The sector ... -
TRANSFORMING WOMEN LIVELIHOODS BY DAIRY FARMING AND MICROFINANCE IN BUNYALA, WESTERN KENYA
(Journal of Studies in Accounts and Economics, 2013-01)This paper is about microfinance viewed as a social change “tool kit” and its consequent effects on livelihoods of women of Bunyala, especially those involved in small-scale diary farming. The study investigated ... -
ENTREPRENEURIAL UTILIZATION OF CRUSHED STONE DUST: A COST BENEFIT ANALYSIS
(International Journal of Science Innovations and Discoveries, 2014-04-24)Crushed stone is a by-product of crushing stone which has been considered as unsalable and of no significant value. But entrepreneurs seek to use all resources and reduce waste to increase their profit ... -
DETERMINANTS OF ECONOMIC GROWTH IN SUB-SAHARAN AFRICA: A Panel Data Approach
(International Journal of Economics and Management Sciences, 2012)Based on a panel data of 19 Sub Saharan countries for the years 1982-2000, this study explores the determinants of economic growth in the region. Given that economic growth is essentially seen as a dynamic ... -
Collective efficiency and its effects on infrastructure planning and development for small manufacturing enterprises in Kenya
(International Journal of Business and Public Management, 2011-03)This paper explores the extent of use of collective efficiency among the wood enterprises in Kenya and its effect on the infrastructure planning and development. Small manufacturing enterprises are known to contribute to ... -
The logarithmic relationship between collective efficiency and technology development in wood enterprises in Kenya
(Journal of Geography and Regional Planning, 2011-03)Small Manufacturing Enterprises (SMEs) contribute to economic dynamism, entrepreneurship and have potentials to contribute to sustainable industrial development in less developed countries (LDCs). They are however ... -
Constructivism and the Likert Scale on the Perception of Teaching/Learning Creativity at the University Level
(Journal of Sociological Research, 2013-01)This paper interrogates the constructivists learning environment, the constructivists learning activities and the use of the likert scale in assessing the effectiveness of teaching/learning creativity at the university ... -
Technological Innovation: Higher Education, Small Manufacturing Enterprises Growth and the Five (i) Technological Development Model In Kenya
(International Journal of Innovative Technology and Research, 2015-07): In Less Developed Countries (LDCs), most graduates from higher institutions learning are absorbed in the informal sector and/or micro and small enterprises. Knowledge development through training, research and experiential ... -
Technology adoption in socializing applied sciences for exploitation of renewable natural resources sustainably
(International Journal of Innovative Technology and Research, 2014-11)Kenya Vision 2030 aims to transform Kenya into a newly industrializing, middle class income country providing high quality life to all her citizens in a safe and secure environment by the year 2030. To achieve this, ...