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E-mail: shahinrafiee@ut.ac.ir

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REFERENCES Al-Maiman, S. & Ahmad D. (2001). Changes in

physical and chemical properties during pomegranate fruit maturation. Department of Food Science and Nutrition, King Saud University.

Anonymous. (1994). Walnut Descriptors for Walnut (Juglans ssp.) International Plant Genetic Resources Institute (IPGRI), Rome, Italy

Aydin, C. (2002). Physical properties of hazel nuts. Biosystem Engineering. 82(3), 297-303.

Aydin, C. (2003). Physical properties of almond nut and kernel. Journal of Food Engineering. 60, 315-320.

Forde, H. I., Walnuts, I., Janick, J., & Moore, J.N. (1975). (Eds.), Advances in Fruit Breeding. Purdue University Press, West Lafayette, IN, pp, 439 455.

Kashaninejad, M., Mortazavi, A., Safekordi, A. & Tabil, L.G. (2006). Some physical properties of pistachio (Pistacia vera L.) nut and its kernel.

Journal of Food Engineering. 72, 30-38.

Khojastehpour, M. (1996). Design and construction of poptato sorting machine according to Iran condition. M. Sc. Thesis faculty of Bio-system Engineering. University of Tehran.

Mirasheh, R. (2006). Designing and making procedure for a machine determining olive image dimensions. M. Sc. Thesis. Faculty of Bio-system Engineering. University of Tehran.

Mohsenin, N. N. (1986). Physical Properties of Plant and Animal Materials. Gordon and Breach science publishers, pp. 20-89.

Ramos, D. (1987). Walnut Production Manual, University of California, DANR Publ., Davis

Razavi, S. M. A., Emadzadeh, B., Rafe, A., & Mohammad Amini, A. (2007). The physical peroperties of pistachio nut and its kernel as a function of moisture content and variety: Part I. Geometrical properties. Journal of Food Properties. 81(1), 209-217.

Razavi, S. M. A., Mohammad Amini, A., Rafe, A. & Emadzadeh, B. 2007. The physical properties of

pistachio nut and its kernel as a function of moisture content and variety. Part III: Frictional properties. Journal of Food Properties. 81(1), 226-235.

Safwat, M.A., & Moustafa. D. (1971). Theoreticalprediction of volume, surface area, and center ofgravity for agricultural products. Transactions of the ASAE. 15. 549-553.

Sofa, M. A. (1971). Theoretical prediction of volume, surface area, and center of gravity for agricultural products. Transactions of the ASAE. 14, 549-553.

Stroshine, R., & Hamann, D. D. (1994). Physical Properties of Agricultural Materials and Food Products. Purdue University. West Lafayette, Indian. Course manual.

Topuz, A., Topakci, M., Canakci, M., Akinci, I. & Ozdemir, F. (2005). Physical and nutritional properties of four orange varieties. Journal of Food Engineering Research. 66, 519-523.

Vezvaee, A., Vahdati, K., & Tajabadi, A. (2003). Guidance assessment walnut, pistachio, almond. Tehran. Khaniran Publication.

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