At the beginning of our work on diffusion processes in PVC tubing used in milk collection it was observed that plastic tubes which have been used for extended periods lose their originally smooth inner surface (1). In spite of careful maintenance, fine tears arise, forming a network on the inside which is in contact with milk, water, and cleaning solution (Fig. 1).

The dynamic sofmilk production in farms of all categories the Russian Federation is given. From standpoint theory functional systems, contradictions between systemforming factors industry, which seeks to increase per capita natural milk, and industry enterprises processing complex trade, profit dominates as a system-forming factor, are reviewed. Based on universal model Michael Portner, intra-i...

Fresh market tomato production is a $5 billion a year industry. Tomatoes are a warm season vegetable crop with large acreages grown in warm climates such as Florida and California. Tomatoes are also grown in numerous northern states earning premium prices for early production in cooler climates. Tomato production often employs plasticulture, such as the use of plastic mulches, for earliness and...