Personal Information

Areas Of Specialization

Thermodynamics

Research Interests

Internal Combustion Engines

Publications

Found 14 results

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Conference Paper
Ogot M, Hey VJ, Gatari M, Nyangaya J, Panchal R. "Development of an Air Quality Monitoring Programme for Nairobi and Exploration of Avenues for PM2.5 Levels Reduction.". In: 2nd Kenya Air Quality Annual Conference.; 2017.
Ogot M, Nyangaya J. "Greenhouse Gas Emissions Abatement Potential in Kenya from Introduction of Feebates.". In: 1st Biennial Status of Higher Education Conference, . Commission for University Education, Nairobi; 2016.
Ogot M, Nyangaya J. "How Many Vehicles are there on Kenya's Roads?". In: 1st Biennial Status of Higher Education Conference. Commission for University Education, Nairobi; 2016.
. DRNYANGAYAJAMESA. "Small scale manufacture of replacement crankshaft Journal of Agriculture Science and Technology (JAST) vol 4 (1) 2002 pp 83-90.". In: J Obst Gynecol East Cent. Afric. DR. MARK NELSON AWORI; PROF. PANKAJ G. JANI; 2002. Abstract
Twenty variceal banding sessions were performed in eight patients between February 1995 and September 1996. A total of 69 rings were used to band the varices and at each session between two to six rings were used. Two of the eight had active bleeding and both underwent variceal banding to successfully arrest their bleeding as inpatients. Sixteen other variceal banding sessions were performed on an outpatient basis to obliterate their varices. Four of the eight patients had had sclerotherapy before and varices were still present. No acute or long term complications were noted. In one patient, variceal banding could not be performed as he developed stridor upon placement of the overtube. All the patients had advanced varices (Grade III or IV) and extended for more than 15 cms in the oesophagus. Endoscopic variceal obliteration remains the treatment of choice for patients with portal hypertension with variceal bleeding. Variceal banding is associated with a superior outcome when compared with sclerotherapy; the variceal kill time is shorter, infective complications less, rebleeding occurs less commonly and transfusion requirements are lower.
. DRNYANGAYAJAMESA. "Local Development of a Production Process for Replacement Cylinder Head Journal of Agriculture Science and technology (JAST) Vol. 3 (2) 2001.". In: J Obst Gynecol East Cent. Afric. DR. MARK NELSON AWORI; PROF. PANKAJ G. JANI; 2001. Abstract
Twenty variceal banding sessions were performed in eight patients between February 1995 and September 1996. A total of 69 rings were used to band the varices and at each session between two to six rings were used. Two of the eight had active bleeding and both underwent variceal banding to successfully arrest their bleeding as inpatients. Sixteen other variceal banding sessions were performed on an outpatient basis to obliterate their varices. Four of the eight patients had had sclerotherapy before and varices were still present. No acute or long term complications were noted. In one patient, variceal banding could not be performed as he developed stridor upon placement of the overtube. All the patients had advanced varices (Grade III or IV) and extended for more than 15 cms in the oesophagus. Endoscopic variceal obliteration remains the treatment of choice for patients with portal hypertension with variceal bleeding. Variceal banding is associated with a superior outcome when compared with sclerotherapy; the variceal kill time is shorter, infective complications less, rebleeding occurs less commonly and transfusion requirements are lower.
. DRNYANGAYAJAMESA. "Ethanol Fuel substitution Through Fumigation Kenya Journal of Science and Technology Series A vol. 10 No.1 (1996).". In: J Obst Gynecol East Cent. Afric. DR. MARK NELSON AWORI; PROF. PANKAJ G. JANI; 1996. Abstract
Twenty variceal banding sessions were performed in eight patients between February 1995 and September 1996. A total of 69 rings were used to band the varices and at each session between two to six rings were used. Two of the eight had active bleeding and both underwent variceal banding to successfully arrest their bleeding as inpatients. Sixteen other variceal banding sessions were performed on an outpatient basis to obliterate their varices. Four of the eight patients had had sclerotherapy before and varices were still present. No acute or long term complications were noted. In one patient, variceal banding could not be performed as he developed stridor upon placement of the overtube. All the patients had advanced varices (Grade III or IV) and extended for more than 15 cms in the oesophagus. Endoscopic variceal obliteration remains the treatment of choice for patients with portal hypertension with variceal bleeding. Variceal banding is associated with a superior outcome when compared with sclerotherapy; the variceal kill time is shorter, infective complications less, rebleeding occurs less commonly and transfusion requirements are lower.
. DRNYANGAYAJAMESA. "Use of ethanol in Diesel Engines: Published in the September/October 1993, Issue of the Kenya Engineer.". In: J Obst Gynecol East Cent. Afric. DR. MARK NELSON AWORI; PROF. PANKAJ G. JANI; 1993. Abstract
Twenty variceal banding sessions were performed in eight patients between February 1995 and September 1996. A total of 69 rings were used to band the varices and at each session between two to six rings were used. Two of the eight had active bleeding and both underwent variceal banding to successfully arrest their bleeding as inpatients. Sixteen other variceal banding sessions were performed on an outpatient basis to obliterate their varices. Four of the eight patients had had sclerotherapy before and varices were still present. No acute or long term complications were noted. In one patient, variceal banding could not be performed as he developed stridor upon placement of the overtube. All the patients had advanced varices (Grade III or IV) and extended for more than 15 cms in the oesophagus. Endoscopic variceal obliteration remains the treatment of choice for patients with portal hypertension with variceal bleeding. Variceal banding is associated with a superior outcome when compared with sclerotherapy; the variceal kill time is shorter, infective complications less, rebleeding occurs less commonly and transfusion requirements are lower.
. DRNYANGAYAJAMESA. "v. A cost Effective Method of Ethanol fumigation is small Diesel Engines.". In: J Obst Gynecol East Cent. Afric. DR. MARK NELSON AWORI; PROF. PANKAJ G. JANI; 1993. Abstract
Twenty variceal banding sessions were performed in eight patients between February 1995 and September 1996. A total of 69 rings were used to band the varices and at each session between two to six rings were used. Two of the eight had active bleeding and both underwent variceal banding to successfully arrest their bleeding as inpatients. Sixteen other variceal banding sessions were performed on an outpatient basis to obliterate their varices. Four of the eight patients had had sclerotherapy before and varices were still present. No acute or long term complications were noted. In one patient, variceal banding could not be performed as he developed stridor upon placement of the overtube. All the patients had advanced varices (Grade III or IV) and extended for more than 15 cms in the oesophagus. Endoscopic variceal obliteration remains the treatment of choice for patients with portal hypertension with variceal bleeding. Variceal banding is associated with a superior outcome when compared with sclerotherapy; the variceal kill time is shorter, infective complications less, rebleeding occurs less commonly and transfusion requirements are lower.
. DRNYANGAYAJAMESA. "vi. The African charcoal Stove: It.". In: J Obst Gynecol East Cent. Afric. DR. MARK NELSON AWORI; PROF. PANKAJ G. JANI; 1985. Abstract
Twenty variceal banding sessions were performed in eight patients between February 1995 and September 1996. A total of 69 rings were used to band the varices and at each session between two to six rings were used. Two of the eight had active bleeding and both underwent variceal banding to successfully arrest their bleeding as inpatients. Sixteen other variceal banding sessions were performed on an outpatient basis to obliterate their varices. Four of the eight patients had had sclerotherapy before and varices were still present. No acute or long term complications were noted. In one patient, variceal banding could not be performed as he developed stridor upon placement of the overtube. All the patients had advanced varices (Grade III or IV) and extended for more than 15 cms in the oesophagus. Endoscopic variceal obliteration remains the treatment of choice for patients with portal hypertension with variceal bleeding. Variceal banding is associated with a superior outcome when compared with sclerotherapy; the variceal kill time is shorter, infective complications less, rebleeding occurs less commonly and transfusion requirements are lower.
Journal Article
Rebecca Lynne C, Rikesh Panchal, Emmanuel, Michael G, Moses N, Nyangaya J, O M, J M, P K, A A, A R, M P, V J. "Volatile Organic Compound Composition of Urban Air in Nairobi Kenya and Lagos Nigeria.". 2021.
Maina J, Gitau A, Nyang’aya J. "Diesel Engine Emissions and Performance Characteristics under Cape Chestnut Biofuel." Journal of power and Energy Engineering. 2013;Vol 1,No.6 :9-14.
Research Paper
O M, Ayah R, Muriuki R, Nyangaya J. Oxygen Access and Affordability in Health Facilities in Kenya.; 2021.
Thesis
Nyang'aya JA. Efficiency of African charcoal burning stove .; 1982. Abstract

Fuelwood accounts for most of the domestic energy use in the Third World. In East Africa the use of charcoal especially in urban centres has continued though threatened by social factors such as deforestation. The typical East African metal charcoal stove has been studied with emphasis on its efficiency and pollutant emission. The study has brought to better focus the very low performance figures and the dangerously high pollutant emissions by the stove. The study consisted of: i. Continuous flue gas monitoring which was achieved by positioning the stove in a specially constructed enclosure allowing sampling of the flue gases before dillution with the surrounding air. ii. Temperature monitoring of various .. posi tions both on and off the stove to assess the heat energy distribution. Following lighting up concentrations of over 3% CO and 8% CO were recorded each time. These concentrations reduced to about half the above values within 10 minutes though for up to 30 minutes the concentrations were still1\3 times above the.:poisonous ., threshold limit based on normal air. changes -wi thin an occupied room

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