THE USE OF WATERJETS IN CUTTING A MULTIPLE PHASE MATERIAL
The University of Missouri-Rolla is carving a new sculpture. This involves shaping 3 rocks, collectively weighing 100 tons, and cutting figures of a man and a woman from two blocks. The three blocks will then be erected to form a Millennium Arch and the Figures will be polished as a second set. A relatively inexpensive X-Y table and cutting head unit were developed. The cutting waterjet was without abrasive at under 100 MPa. One problem in cutting large blocks (5 m x 2 m by 0.75 m) is that the structure changes. A variety of approaches were taken to solve this problem. The process steps required to cut the rock to shape, and then to carve the rock are described in the paper.
THE EFFECT OF ROCK ANISOTROPY ON THE EXCAVATION RATE IN BARRE GRANITE
The variation in the volume of rock removed when a water jet traverses over a sample of Barre Granite is shown to vary with the angle at which the sample is cut relative to the orientation of the main deposit. For example where the jet impacts perpendicular to a microfissure plane a channel up to 10 times the volume is cut as when the jet is traversed along the microfissure plane. A correlation is shown to exist between the dimensions of the rock volume removed and the angle of impact between the water jet and the two microfissure planes of the Barre Granite.
A STUDY ON ORGANIZED RETAILING AND ITS CHALLENGES AND RETAIL CUSTOMER SERVICES
India is becoming most favored retail destination in the world. Today retail sector contributing 10% to countryâ€™s GDP. Indian retail industry is ranked among the ten largest retail markets in the world. The change of attitudes of Indian consumers and the emergence of organized retail formats have transformed the face of retailing in India. Organized retailing offers huge potential for future growth of retailing in India. This paper provides information about the growth of retailing in India. And also focuses on the challenges faced by organized retail sector in India. It also emphasize on major players of retailers in India and customer services provided by the retailers. This paper also deals with various retail formats and the opportunities for the growth of retail industry in India and also provides some suggestions to overcome the challenges.