Publications

  1. Tangka, J. K., Bongmo, J. M., & Etengeneng, A. E. (2024). Investigationson Specific Phytochemical Characteristics of Seed Oil and  Defatted Seeds of Four Oil-Producing Plants Found in Cameroon. European Journal of Applied Sciences, Vol – 12(3). 215-232.   DOI:10.14738/aivp.123.16948
  • G. Noubissi   B.M.K. Djousse, J.K Tangka,  R. Tchinda  M. Tchoffo (2024).   Shelling and characterisation of the technical parameters of a shea nut (Vitellaria paradoxa) shelling machine in Cameroon/   nal / Agro-Science / Vol. 22 No. 1 (2023) /  DOI:10.4314/as.v22i1.12
  • Nadia H. Dassi Djoukouo,  Boris Merlain K. Djousse,    Henri G. Doukeng, Daniel A.M. Egbe, Julius K. Tangka,  Martin Tchoffo.  (2024).   Design of a pyrolyser model for the conversion of thermoplastics into fuels     Open Access Published:February 28, Helyion2024DOI:https://doi.org/10.1016/j.heliyon.2024.e26702.  Helyion  Volume 10, ISSUE 5, e26702, March 15, 2024
  • Julius K Tangka, MBi  M  Besong,   Henri Grisseur Djoukeng. Performance Evaluation of a Typical 50kWp Solar Park Village Energy Option in Cameroon European Journal of Applied Sciences – Vol. 11, No. 6   December 25, 2023   DOI:10.14738/aivp.116.15836
  • Nono Wandji Brice Leonel, Tangka Julius Kewir, Boris Merlain Djousse Kanouo, Sogang Segning Harry Bertholt, Tedongmo Gouana Jospin. Productivity, bioconversion capacity, protein and fat contents of black soldier fly larvae (hermetia illucens) fed with jatropha curcas pressed cake, American Journal of Energy Engineering. Volume 11, Issue 1, March 2023 , Pp. 21-28. Doi: 10.11648/J.Ajee.20231101.13
  • Segning Harry Bertholt, Tangka Julius Kewir, Djousse Kanouo Boris Merlain, Nsah-Ko Tchoumboue, Lontsi Kuefouet Alexi,Tedongmo Gouana Jospin, Nono Wandji Brice Leonel. Characterization of wet mesophilic biomethanization of three types of materials:chicken dung, rabbit poop and pig slurry. International journal of sustainable and green energy. Vol. 10, No. 4, 2021, pp. 145-154.doi: 10.11648/j.ijrse.20211004
  • Henri Grisseur Djoukeng, Brice Martial Kamdem, Julius Kewir Tangka, And Boris Merlain Djousse Kanouo, “Development and performance optimization of a grinder-mixer for use in rural areas,” International Journal of Innovation and Scientific Research, Vol. 65, No. 1, Pp. 1–14, February 2023. 
  • Nasse Fetio Ngoune, Boris Merlain Kanouo Djousse, Grisseur Henri Djoukeng, Cherelle Grace F. Nguimeya, Julius Kewir Tangka, Martin Tchoffo. Contribution of the mix renewable energy potentials in delivering parts of the electric energy needs in the west region of Cameroon, HELIYON (2023), doi: https://doi.org/10.1016/ j.heliyon.2023.e14554 
  • 5. Djoukeng Henri Grisseur  ,   Kamta Tandah Christian Gauthier  Tangka Julius Kewir. Valorization of tiger nuts (cyperus esculentus) sourced from cameroon in yoghurt production Asian Journal Of Advances In Agricultural Research, Volume 20, Issue 4, Page 35-48 DOI: 10.9734/Ajaar/2022/V20i4406 Published: 31 December 2022 
  • Julius Kewir Tangka, Njueze Rudolf, Djousse K Merlain . (2022) Analysing Failure Of The Government-Backed Free Tractor Distribution To Farmers In The Five Agro Ecological Zones In Cameroon: The Case Of Sonalika Tractors. Agricultural Mechanization In Asia, Africa And Latin America 2022 Vol.53 No.1
  • Tangka, J. K., Ngah, J. N., Kuaban, G. S., & Evina, M. N. W. . (2022). Comparative Analysis of the Vibrational Response of Different Main Rotor Blades of a Homemade Helicopter. European Journal of Applied Sciences, 10(4), 460–473. https://doi.org/10.14738/aivp.104.12621
  • Henri Grisseur Djoukeng, Henry Chotangui Asafor, Yannick Frank Tanku Tedjon, Alphonse Azebaze, and Julius Kewir Tangka, (2022)  “Effect of tobacco leaves (Nicotiana tabacum) on the weevil (Acanthoscelides obtectus) of common bean (Phaseolus vulgaris),” International Journal of Innovation and Scientific Research, vol. 62, no. 2, pp. 51–60, September 2022.
  • Godlove Suila Kuaban, Mateusz Nowak, Piotr Czekalski, Krzysztof Tokarz,
    Julius Kewir Tangka, Agris Nikitenko, Karlis Berkolds, Raivo Sell, (2022) An
    IOT course program to foster the adoption of iot driven food and agriculture in Sub-Saharan Africa (SSA), Proceedings of the International Conference On Electrical, Computer and Energy Technologies (ICECET), 20-22 July 2022, Prague-Czech Republic, IEEE (Institute of Electrical and Electronic Engineers).
  • Lonsti, Julius K Tangka, Djousse K Merlain  (2022) Experimental study on the electrical and thermal characteristics of a hybrid photovoltaic/thermal water solar collector model using photovoltaic solar modules of different brands.                       Energy Conversion and Management: X Volume 14, May 2022, 100198,  https://doi.org/10.1016/j.ecmx.2022.100198, Elsevier 
  • Tangka Julius Kewir (2021) Sustainable Energy : Case study of Cameroon. In Muhammad Asif; editor, Energy and Environmental Security in Developing Countries. pp 587-608. Springer Nature Switzerland. 
  • Tangka J K (2020)  Experimental investigation on physico-chemical properties of bio-ethanol/gasoline blends and the qualitative effect of different blends on gasoline quality and engine performance.  Chapter 12 Print  ISBN: 978-93-89816-88-4, eBook ISBN: 978-93-89816-89-1 DOI: 10.9734/bpi/csbbt/v2 
  • Tangka, J. K., Esther, A. F., & K., B. M. D. (2020). Evaluation of raffia palm weevil larvae (rhynchophorus phoenicis) as a potential biodiesel resource. Journal of Advances in Biology & Biotechnology, 23(8), 36-43. https://Doi.Org/10.9734/JABB/2020/v23i830173  
  • Julius K Tangka, Djousse Kanoua Boris, Max Croft, Vincent Kitio (2020) Comparative analysis of biodiesel production from five varieties of castor beans. Journal of advances in Biology & Biotechnology, page 9-22 DOI: 10.9734/jabb/2020/v23i1130186 
  • Nsah-Ko Tchoumboué, Lontsi Meli Raoul Gilles, Tangka Julius Kewir. Charcoal yield and fixed carbon content of jatropha seed cake pyrolysis: effect of preheating temperature, extraction pressure and seed form. International Journal of Sustainable and Green Energy  Volume 9, Issue 2, June 2020. DOI: 10.11648/j.ijrse.20200902.11 
  • Tangka J.K , N. W. M. Evina, J N Ngansi (2020) Development Of A Computerized Automated System For Feed, Water And Sanitation Management In Animal Farms. Current Journal Of Applied Science And Technology, Page 1-15 DOI: 10.9734/cjast/2021/v40i331279 
  • Tangka, J. K., & Yusifu, W. F. (2020). Development of a solar based automatic water heating and temperature-controlled recirculating aquaculture system. Current journal of Applied Science and Technology, 38(6), 1-14. Https://doi.org/10.9734/cjast/2019/v38i630446 
  • Dongmo S, J.K. Tangka And B.M. Djousse . Caracterisation des vents induits par les vehicules en mouvement et evaluation de leur potentiel eolien .  Rеvuе Des Enеrgies Renouvеlablеs. Democratique et populaire ministere de l’enseignement superieur et de la recherche scientifique direction generale de la recherche scientifique et du developpement technologique Centre de Developpement des Energies Renouvelables. Republique Algerienne. https://www.cder.dz/spip.php?article4573
  • Nsah-Ko Tchoumboué, Tangka Julius Kewir, Kana Raphael, Meutchieye Felix, Mahop Jean Marin, Tedongmo Gouana Jospin. (2019),  Effect of preheating temperature and extraction pressure on combustion characteristics of cake from whole, kernels and crushed jatropha seed. International Journal Of Sustainable and Green Energy Volume 8, Issue 1, March 2019, Pages: 12-19
  • Nsah-Ko Tchoumboué1., Tangka, J.K., Njila, R., Djoussé Kanouo, B.M., Sogang Signing, H.B., Womeni, H., Ndomou, S.C. (2018). Oil production and energy input from extraction of jatropha curcas l. : effect of seeds form, preheating temperature and applied pressure.  The International Journal of Engineering and Science (IJES) Vol . 7 Issue 8 Ver. III|. Pages || PP 69-75 || 2018, ISSN (e): 2319 – 1813 ISSN (p): 23-19 – 1805 DOI:10.9790/1813-0708036975 www.theijes.com Page 69 
  • Julius K Tangka , Joseph N Mbinkar , Viyoi C Tidze And Eric T. Sako; A rice husk fired biomass stove for cooking, water and space heating International Journal of Trend in Research and Development (Ijtrd), ISSN: 2394-9333, Volume-5 | Issue-6 , December 2018, URL: http://www.ijtrd.com/papers/ijtrd18101.pdf 
  • Ngoya Bamagna, Tangka Julius Kewir, Dongmo Solefack Patrick Mao (2017) Solar resource and potential of photovoltaic electricity generation in Cameroon : Pv GIS Approach Volume : Vi, Issue : Xii, December – 2017. Doi : 10.15373/22778179  23.
  • Tangka JK , Fointama D, Viyoi C T, Shuufai Woo Ngairin (2014). Ground Water and Atmospheric Pollution in the Douala City of Cameroon: development of a pilot plant for waste water treatment coupled with methane capture from fibre glass reinforced decanter digesters. Paper presented at the TECH4DEV UNESCO international conference in Loussane Switzerland June 4 to 6 2014/ 24.
  • Tangka J K , Ketuma C T., Ajaga Viyoi C T, (2012). Modelling of the operation of a small generator set powered by scrubbed biogas from cow dung. British Journal Of Applied Science & Technology, Issn: 2231-0843,Vol.: 14, Issue.: 1
  • J.K. Tangka, P. Tchakoua , H. Fotsin Et A. Fomethe (2012). Development of an intelligent electronic module for energy management in wind/diesel backup and photovoltaic/diesel backup hybrid systems, British Journal Of Applied Science And Technology, 2 (3) Pp 275-295 Science Domain International
  • Berinyuy J. E., Tangka, J.K., Weka, F. G. (2012). Enhancing natural convection solar drying of high moisture vegetables with heat storage.  Agricultural Engineering International: CIGR Journal, Vol 14, No 1 Pp 141-148.
  • Dongo, Patrice D., Tchitnga, Robert, Tchapga, Christian T., Tchamda, Andre R. Tangka, Julius Kewir, Fomethe, Anaclet. (2012). Design Simulation and Realization of an Intelligent  Charge Controller (ICC) For Accumulators in Renewable Energy Power Stations. African Journal of Science, Technology, Innovation And Development.   Vol 4 No 4 PP 36-54
  • Tizé K., Aboubakar and  Tangka J., (2011), The Impact of Local Materials on the Construction Cost of Cylindrical Floating Biogas Digester. Vol.1  Fermentation Technology and Bioengineering , pp.15-31. 
  • Tangka J K, Berinyuy J E, Tekounegnin, Okale A N (2011) Physico-chemical properties of bio-ethanol gasoline blends and the qualitative effect of different blends on gasoline quality and engine performance. Journal of Petroleum Technology And Alternative Fuels Vol. 2(3), Pp. 35–44, March 2011
  • J.K. Tangka, P. Tchakoua , H. Fotsin Et A. Fomethe (2010). Conception Et Realisation D’un Module Electronique De Controle De Charge Et De Gestion Optimale De L’energie Pour Systemes Energetiques Hybrides Eolien-Diesel, Photovoltaïque-Diesel Et Eolien-Photovoltaïque-Diesel (Meccgopseh). Revue Des Energies Renouvelables Vol. 13 N°4 (2010) 591 – 602
  • Tangka J K, Penda M P. (2007) Development and performance evaluation of a medium scale system for processing bitter leaf Vernonia. Biosystems Engineering, 96(2) 223-229 Silsoe Research Institute U.K
  • Tangka J K, Kamnag N E, (2006). Development of a simple intermittent absorption solar refrigeration system. International Journal of Low Carbon Technologies. Manchester University Press: 1748-1317 1 (2) Pp 127-138       
  • Tangka J K (2006). Development of a simple machine for the processing of leaves of green plants. Agricultural Mechanisation for Africa Asia and Latin America. Farm Machinery Industrial Research Corporation, Tokyo Japan 37(4)76-80 
  • P. K Talla; Tekougnening; J K Tangka; Ebale; A Foudjet (2004). Statistical model of strength in compression of Raphia Vinifera L (Arecacea). Journal of Bamboo and Rattan Vol 3: 3 Pp 229-235. Leiden Universty Press, The Netherlands.
  • Tangka J. K (2003). Analysis of the thermal energy requirements for the extraction proteins from some green plants  Biosystems Engineering. Vol 8, N° 4 Pp 473-47 Silsoe Research Institute U.K.
  • Tangka J K ; Ndongo B; Onabid M. (2001). Raffia palm as a structural material in the grass land region of Cameroon . African Journal Of Building Materials. Vol. 5 N°1, Pp 10-18 37. Tangka J K, Fonteh M F, Berinyuy J E ( 2000) Agricultural Mechanisation In Cameroon: Constraints And Opportunities For Improvement. Journal of the Cameroon Society of Engineers Vol 9 Pp 46-49
  • Tangka J K .   Design And Development Of An Appropriate Technology Furnace For The Melting Of Cast Iron And Nonferous Metals In Cameroon.  Journal of the Cameroon Society of Engineers. Vol 8 pp 40-44 
  •  Berinyuy, J E, Tangka, J K,  Weka, F G (1999). Potentials of Solar Energy Utilisation In The Post Harvest Drying Of Vegetables And Other Commodities In Cameroon. Journal of the Cameron Society of Engineers. Vol. 8, Pp 27-

33  A.  CONFERENCE PAPERS

Julius K TANGKA (2022) Advances in Renewable Energy Research at Renewable Energy Laboratory of the University of Dschang, Cameroon. Pan-African Summit on Just Transition and Energy Democracy PASJTED Niarobim Kenya 16-17 May 2022

Tangka, J.K., Mbinkar, J.N., Tidze, V.C., Sako, E.T (2018) Development of a Rice Husk Fired Biomass Stove for Cooking, Water and Space Heating. 26th European Biomass Conference and Exhibition Copenhagen Demark pp 263 – 270 , DOI 10.5071/26thEUBCE2018-1CV.8.17 ISBN 978-88-89407-18-9

Tangka J K , Fointama D, Viyoi C T, Shuufai Woo Ngairin (2014). Ground Water and Atmospheric Pollution in the Douala City of Cameroon: development of a pilot plant for waste water treatment coupled with methane capture from fibre glass reinforced decanter digesters. Paper presented at the TECH4DEV UNESCO international conference in Loussane Switzerland June 4 to 6 2014/

Tangka J.K 2012 Micro wind turbines and biogas digester as off grid solution to electricity problems in Cameroon, the case of Bamzend village in the North West region of Cameroon. Paper presented at the Renewable Energy Conference, Nnsuka Nigeria>

Tangka JK (2009) Biogas digesters and micro wind turbines as an off grid solution to energy crises in Cameroon. The case of Bamdzeng village in the North West Province of Cameroon. Paper presented at the National Conference on Science and Technology. Hilton Hotel Yaounde Cameroon. Ministry of Scientific research Yaounde Cameroon. 

Dane Bosev, Julius Tangka, Ivan Iyanchev (1998). Production of Maize in Arid and semi Arid zones using drought tolerant hybrids. Proceedings of the Ninth International course on Agriculture in arid and semi rid regions advance Agro technologies. Ben Gurion University of the Negev Israel

Tangka , J.K. (1995). A comparative analysis of the energy requirements for the extraction of leaf protein concentrate from the leaves of five Nigerian plant species. Ph.D thesis ;Department of Agricultural Engineering ,University of Ibadan ,Nigeria.

Tangka , J.K. (1991a) Design of leaf protein extraction machinery . MSc. thesis ;Department of Agricultural Engineering. University of Ibadan , Nigeria.

Tangka , J.K. (1991b)Relationship between Livestock business and environmental pollution of some areas of Ibadan City. Paper presented at the departmental seminar, Department of Agricultural Engineering University of Ibadan Nigeria.

Tangka , J.K. (1991c) . Feasibility study on commercial leaf protein concentrate production. Paper presented at the Departmental seminar ; Department of Food Technology , University of Ibadan.

Tangka , J.K (1991d) Raffia palm as a structural material in the North West Province of Cameroon. Paper presented at the departmental seminar ,  Department of Agricultural engineering University of Ibadan , Nigeria.

Tangka , J.K (1991).Design of a 25000 tons capacity Nigeria warehouse for strategic grain storage in the Nigeria. Paper presented at the departmental seminar ,Department of Agricultural engineering University of Ibadan , Nigeria.

Tangka , J.K (1989).Repairs and maintenance of cars and trucks.(Mercedes Benz , Honda , Renault and Mitsubishi ). A report of the supervised industrial training program carried out at Leventis Motors Company, presented at the Industrial Co-ordination Unit, University of Ibadan;September , 1989 .

Tangka , J.K (1988). Assembly repairs and maintenance of heavy duty agricultural equipment.(CASE ,Ford, and DAVID BROWN) ..A report of the supervised industrial training program carried out at Leventis Motors Company , and presented at the Industrial Co-ordination Unit , University of Ibadan.

Tangka , J.K (1987) Engineering craft. A report of the supervised industrial training program carried out at FOBA Engineers Company Ltd. and presented at the Industrial Co-ordination Unit , University of Ibadan. September 1987.

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