member-academic-staff-he ישעיהו ירניצקי פרופסור אמריטוס טלפון: +972-77-8873164 פקס: +972-77-887711 דוא"ל: email@example.com קו"ח פרסומים נבחרים Professor Emeritus Education 1953 - B.Sc., Technion, I.I.T. 1954 - Dipl. Ing., Technion, I.I.T. 1961 - D.Sc., Faculty of Mechanical Engineering, Technion - I.I.T. Research Interests Development of technologies and machinery for diamond and gem dressing. Various inventions in the fields of technology and machinery. Design of intelligent machinery comprising mechanical electronic, electrooptical systems and computers. Sintering of metallic bond diamond grinding wheels. Electrodeposition (tools and jewelry) Public Professional Activities Head, Diamond Laboratory (1973-) Chief Scientist and Head of Technological Diamond Lab., Diamond Institute, Ramat Gan (1970-81) Member, Haifa Municipal Council (1973-78) Chairman, "Kiryat Hinukh" School Association (1970-94) Chairman, Academic Staff Organization, Technion (1979-81) Initiator, Israel Diamond and Gemological Institutes (1975) Honors and Awards Distinguished engineer, Israel Association of Engrs. & Archs. (1993) Selected Publications R. Porat and Y. Yarnitsky, "The effect of diamond powder grain size on the rate of polishing diamond crystalographic planes", C.I.R.P., Norway, (1989). R. Porat and Y. Yarnitsky, "Correlation between the friction coefficient and the shear modulus of diamond", International Plansee Seminar, Austria, (1989). Y. Yarnitsky, and J.P.F. Sellschop, "Polishing Diamonds in various atmospheres", II Diamond Conference, Bristol, U.K, (1989). Y. Sofer, Y. Yarnitsky and S. Direnfeld, "Composite coatings on steel of a Ni-No matrix and diamond particles", J. Surface and Coating Technology, (1990). R. Porat and Y. Yarnitsky, "The effect of diamond powder grain size on the rate of polishing diamond crystallographic places", C.I.R.P. Publication, Vol. 38, 319 - 321, (1989). Y. Yarnitsky, "The Diamond and its processing". Part I - General information - 200 p. Part II - The machining of Diamonds 250 p. Part III - Evaluation of Gem Diamonds - 200 p.