Bio

Publications


Submitted

K., DRMANGOLIMAURICE.  Submitted.  Mangoli. M.K. "Optimal Long-term Reactive Power Planning Using Decomposition Techniques", Ph.D. Thesis. The Pennsylvania State University, U.S.A., Dec. 1991.. Published in a Journal Kenyan Geographer.. : ELOQUENT BOOKS NY, Strategic Book Group, Connecticut, USA. ISBN-978-1-60911-081-9.Pages1 Abstract
Normal 0 false false false MicrosoftInternetExplorer4 st1:*{behavior:url(#ieooui) } /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman"; mso-ansi-language:#0400; mso-fareast-language:#0400; mso-bidi-language:#0400;} Macrophytes have been shown to perform important ecological roles in Lake Naivasha. Consequently, various studies regarding the impact of biotic factors on the macrophytes have been advanced but related studies on environmental parameters have lagged behind. In an attempt to address this gap, sampling on floating species and submergents was carried out in eight sampling sites in 2003 to investigate how they were influenced by a set of environmental factors. Soil texture (sandy sediments; P < 0.05, regression coefficient = - 0.749) and wind were the most important environmental parameters influencing the distribution and abundance of floating macrophytes. Combination of soil texture and lake-bed slope explained the most (86.3%) variation encountered in the submergents. Continuous translocation of the floating dominant water hyacinth to the western parts by wind has led to displacement of the submergents from those areas. In view of these findings, the maintenance and preservation of the steep Crescent Lake basin whose substratum is dominated by sand thus hosting most submergents remain important, if the whole functional purpose of the macrophytes is to be sustained.

2011

2009

K., DRMANGOLIMAURICE.  2009.  Distributed Generation of Green Electricity for Sustainable Rural Electrification in Kenya. IEK International Conference. : I.E.K Internatioanl Conference l Abstract
The electricity industry has an important role in developing a sustainable energy system, both regarding the use of electricity to improve environmental performance in society thus contributing to a better livingstandard and social life and to reduce the environmental impacts from the electricity industry own activities.The industry contributes significantly to the worlds total green house gas emissions and has a significantimpact on other environmental aspects, such as exploitation of fuel resources, emissions to air, generationof waste and use of landscape. Approximately 80% of the Kenyan population lives in rural areas whereelectricity access rate is merely 4%, mainly due to the slow rate of installation caused by the high costs ofextending the existing grid to rural areas. It is therefore imperative that a comparative study be carried outto establish the optimum power system to supply the rural areas in Kenya given the financial constraintswithin many rural households while considering the environmental external costs due to each method. Thefollowing scenarios are considered for this study: (i) Mini grid powered by Green Distributed GenerationTechnologies, (ii) Mini grid powered by fossil fired plants, (iii) Extension of the existing grid.
K., DRMANGOLIMAURICE.  2009.  Distributed Generation of Green Electricity for Sustainable Rural Electrification in Kenya. IEK International Conference. : IEK International Conference Abstract
The electricity industry has an important role in developing a sustainable energy system, both regarding the use of electricity to improve environmental performance in society thus contributing to a better livingstandard and social life and to reduce the environmental impacts from the electricity industry own activities.The industry contributes significantly to the worlds total green house gas emissions and has a significantimpact on other environmental aspects, such as exploitation of fuel resources, emissions to air, generationof waste and use of landscape. Approximately 80% of the Kenyan population lives in rural areas whereelectricity access rate is merely 4%, mainly due to the slow rate of installation caused by the high costs ofextending the existing grid to rural areas. It is therefore imperative that a comparative study be carried outto establish the optimum power system to supply the rural areas in Kenya given the financial constraintswithin many rural households while considering the environmental external costs due to each method. Thefollowing scenarios are considered for this study: (i) Mini grid powered by Green Distributed GenerationTechnologies, (ii) Mini grid powered by fossil fired plants, (iii) Extension of the existing grid.

1996

K., DRMANGOLIMAURICE.  1996.  Mangoli. M.K.. The Kenya Power System " in August 1996 at the 2nd conference of the Kenya Society for the Electrical Engineers - Serena Hotel. Nairobi. IEK International Conference. : I.E.K Internatioanl Conference l Abstract
The electricity industry has an important role in developing a sustainable energy system, both regarding the use of electricity to improve environmental performance in society thus contributing to a better livingstandard and social life and to reduce the environmental impacts from the electricity industry own activities.The industry contributes significantly to the worlds total green house gas emissions and has a significantimpact on other environmental aspects, such as exploitation of fuel resources, emissions to air, generationof waste and use of landscape. Approximately 80% of the Kenyan population lives in rural areas whereelectricity access rate is merely 4%, mainly due to the slow rate of installation caused by the high costs ofextending the existing grid to rural areas. It is therefore imperative that a comparative study be carried outto establish the optimum power system to supply the rural areas in Kenya given the financial constraintswithin many rural households while considering the environmental external costs due to each method. Thefollowing scenarios are considered for this study: (i) Mini grid powered by Green Distributed GenerationTechnologies, (ii) Mini grid powered by fossil fired plants, (iii) Extension of the existing grid.

1995

  1995.  Control System Analysis and Design. AbstractWebsite

This book emphasizes undergraduate topics and the use of CAD programs,while still providing a rigorous treatment of advanced topics and derivation techniques. It instills the basic principles of feedback control essential to all specialty areas of engineering. The first part offers a comprehensive analysis of the fundamentals necessary for feedback control systems analysis. The second part provides thorough coverage of root locus,frequency response and state feedback techniques. The last part includes a number of modern techniques that are useful to the systems design engineer. CAD technology is enhanced by the use of MATLAB problems throughout the text.

K., DRMANGOLIMAURICE.  1995.  Mangoli. M.K.. "Control System Analysis and Design " in August 1995 at the 2nd conference of the Kenya Society for the Electrical Engineers - Sereiw Hotel, Nairobi. IEK International Conference. : I.E.K Internatioanl Conference l Abstract
The electricity industry has an important role in developing a sustainable energy system, both regarding the use of electricity to improve environmental performance in society thus contributing to a better livingstandard and social life and to reduce the environmental impacts from the electricity industry own activities.The industry contributes significantly to the worlds total green house gas emissions and has a significantimpact on other environmental aspects, such as exploitation of fuel resources, emissions to air, generationof waste and use of landscape. Approximately 80% of the Kenyan population lives in rural areas whereelectricity access rate is merely 4%, mainly due to the slow rate of installation caused by the high costs ofextending the existing grid to rural areas. It is therefore imperative that a comparative study be carried outto establish the optimum power system to supply the rural areas in Kenya given the financial constraintswithin many rural households while considering the environmental external costs due to each method. Thefollowing scenarios are considered for this study: (i) Mini grid powered by Green Distributed GenerationTechnologies, (ii) Mini grid powered by fossil fired plants, (iii) Extension of the existing grid.

1994

K., DRMANGOLIMAURICE.  1994.  Mangoli. M.K.. "Optimal Power Flow in Kenya" on 4th August 1994 at the 4th JKUAT Annual Electrical and Electronic Engineering Seminar on Innovations in Electrical Engineering Technology. IEK International Conference. : I.E.K Internatioanl Conference l Abstract
The electricity industry has an important role in developing a sustainable energy system, both regarding the use of electricity to improve environmental performance in society thus contributing to a better livingstandard and social life and to reduce the environmental impacts from the electricity industry own activities.The industry contributes significantly to the worlds total green house gas emissions and has a significantimpact on other environmental aspects, such as exploitation of fuel resources, emissions to air, generationof waste and use of landscape. Approximately 80% of the Kenyan population lives in rural areas whereelectricity access rate is merely 4%, mainly due to the slow rate of installation caused by the high costs ofextending the existing grid to rural areas. It is therefore imperative that a comparative study be carried outto establish the optimum power system to supply the rural areas in Kenya given the financial constraintswithin many rural households while considering the environmental external costs due to each method. Thefollowing scenarios are considered for this study: (i) Mini grid powered by Green Distributed GenerationTechnologies, (ii) Mini grid powered by fossil fired plants, (iii) Extension of the existing grid.
K., DRMANGOLIMAURICE.  1994.  Mangoli. M.K.. The Optimal Sources of Fncrgy in Kenya" in I. E. K National Engineering Seminar on Engineering for Self Reliance - March 23rd-25lh, 1994 at the KlCC, Nairobi.. IEK International Conference. : I.E.K Internatioanl Conference l Abstract
The electricity industry has an important role in developing a sustainable energy system, both regarding the use of electricity to improve environmental performance in society thus contributing to a better livingstandard and social life and to reduce the environmental impacts from the electricity industry own activities.The industry contributes significantly to the worlds total green house gas emissions and has a significantimpact on other environmental aspects, such as exploitation of fuel resources, emissions to air, generationof waste and use of landscape. Approximately 80% of the Kenyan population lives in rural areas whereelectricity access rate is merely 4%, mainly due to the slow rate of installation caused by the high costs ofextending the existing grid to rural areas. It is therefore imperative that a comparative study be carried outto establish the optimum power system to supply the rural areas in Kenya given the financial constraintswithin many rural households while considering the environmental external costs due to each method. Thefollowing scenarios are considered for this study: (i) Mini grid powered by Green Distributed GenerationTechnologies, (ii) Mini grid powered by fossil fired plants, (iii) Extension of the existing grid.

1992

K., DRMANGOLIMAURICE.  1992.  Lee. K.V.. Mangoli. M.K.. Kirn. J.B., Kirn, J.B. . and Park. Y.M. "" A Three Level Hierarchical Approach lorOptimal Reactive power Planning IEEProc., C. Cat. Trans. and Distrib. 1992.. Electric Power Systems Research, Vol. 26, pp. 1-10, 1993.. : I.E.K Internatioanl Conference l Abstract
This paper develops an improved real and reactive power control technique using linear programming (LP) for an integrated power system. The problem is decomposed into two subproblems comprising real (P) and reactive power (Q) modules, and, using a unified approach, the real power generation, voltage magnitude, and transformer tap settings are optimized. The objective function is the fuel cost which is minimized in both the P and Q modules, subject to the operating constraints. The P-Q decomposition combined with the LP formulation improve the computation speed. The paper has another advantage of using the same cost objective function for both modules, unlike other conventional methods which use the power loss function for the Q module. The LP formulation is used for both the P and Q optimization modules, utilizing the revised simplex method which is normally available in a mainframe computer.
K., DRMANGOLIMAURICE.  1992.  Lee. K.Y.. Mangoli, M.K., Kirn, J.B., Kirn, J.B. , and Park. Y.M. "" An Operational Planning Tool for Real and Reactive Power Control"", IEE Proc., C.Cen., Trans. and Distrih. 1992.. Electric Power Systems Research, Vol. 26, pp. 1-10, 1993.. : I.E.K Internatioanl Conference l Abstract
This paper develops an improved real and reactive power control technique using linear programming (LP) for an integrated power system. The problem is decomposed into two subproblems comprising real (P) and reactive power (Q) modules, and, using a unified approach, the real power generation, voltage magnitude, and transformer tap settings are optimized. The objective function is the fuel cost which is minimized in both the P and Q modules, subject to the operating constraints. The P-Q decomposition combined with the LP formulation improve the computation speed. The paper has another advantage of using the same cost objective function for both modules, unlike other conventional methods which use the power loss function for the Q module. The LP formulation is used for both the P and Q optimization modules, utilizing the revised simplex method which is normally available in a mainframe computer.
K., DRMANGOLIMAURICE.  1992.  Mangoli. M.K.. Lee, K.Y.. and Park, Y.M. "Optimal Real and Reactive Power Control Using Linear Programming", Electric Energy Systems Research Journal 1992. Electric Power Systems Research, Vol. 26, pp. 1-10, 1993.. : I.E.K Internatioanl Conference l Abstract
This paper develops an improved real and reactive power control technique using linear programming (LP) for an integrated power system. The problem is decomposed into two subproblems comprising real (P) and reactive power (Q) modules, and, using a unified approach, the real power generation, voltage magnitude, and transformer tap settings are optimized. The objective function is the fuel cost which is minimized in both the P and Q modules, subject to the operating constraints. The P-Q decomposition combined with the LP formulation improve the computation speed. The paper has another advantage of using the same cost objective function for both modules, unlike other conventional methods which use the power loss function for the Q module. The LP formulation is used for both the P and Q optimization modules, utilizing the revised simplex method which is normally available in a mainframe computer.
K., DRMANGOLIMAURICE.  1992.  Mangoli. M.K.. I.cc. K.Y,. and Park, Y.M. ""Optimal Long-term Reactive Power Planning Using Decomposition Techniques."", Electric Energy Systems Research Journal 1992.. Electric Power Systems Research, Vol. 26, pp. 1-10, 1993.. : I.E.K Internatioanl Conference l Abstract
This paper develops an improved real and reactive power control technique using linear programming (LP) for an integrated power system. The problem is decomposed into two subproblems comprising real (P) and reactive power (Q) modules, and, using a unified approach, the real power generation, voltage magnitude, and transformer tap settings are optimized. The objective function is the fuel cost which is minimized in both the P and Q modules, subject to the operating constraints. The P-Q decomposition combined with the LP formulation improve the computation speed. The paper has another advantage of using the same cost objective function for both modules, unlike other conventional methods which use the power loss function for the Q module. The LP formulation is used for both the P and Q optimization modules, utilizing the revised simplex method which is normally available in a mainframe computer.
K., DRMANGOLIMAURICE.  1992.  Mangoli. M.K.. Lee, K.Y., and Park. Y.M. "Optimal Power Flow Using Linear Programming", IEEE Transactions on Power Systems 1992. Electric Power Systems Research, Vol. 26, pp. 1-10, 1993.. : I.E.K Internatioanl Conference l Abstract
This paper develops an improved real and reactive power control technique using linear programming (LP) for an integrated power system. The problem is decomposed into two subproblems comprising real (P) and reactive power (Q) modules, and, using a unified approach, the real power generation, voltage magnitude, and transformer tap settings are optimized. The objective function is the fuel cost which is minimized in both the P and Q modules, subject to the operating constraints. The P-Q decomposition combined with the LP formulation improve the computation speed. The paper has another advantage of using the same cost objective function for both modules, unlike other conventional methods which use the power loss function for the Q module. The LP formulation is used for both the P and Q optimization modules, utilizing the revised simplex method which is normally available in a mainframe computer.

1991

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