Cold rolling of steel is one of the most important metal forming processes so an accurate control of its parameters during the process is necessary. In this paper, the friction coefficient has been proposed as a function of cold rolling parameters such as forward slip, forward and backward tensile stresses ,strip thickness, static deformation, resistance of strip before and after rolling ,strip...

sandwich sheet rolling process is investigated using an analytical method (slab method) and a numerical method (finite element method). the horizontal stress distribution in the layers, the rolling pressure along the contact interface and the neutral point between the roll and the sheet are investigated. then the affects of the parameters such as the friction between the sheet and the roll, she...

The rolling process is an excellent method for processing new high performance polymers. Skew rolling, as a highly accurate and highly efficient rolling technology, has been commonly used to enhance mechanical properties and productivity. However, the complexity of the mechanics in the skew rolling process of polymers is a significant challenge for manufacturers and researchers. In this work, m...

Land reforms in developing countries provide a good experiment for study on development economics, and in the case Taiwan the land reform provides specific historical context for us to closely examine the relationship between redistribution and growth. In this paper, we use panel data on the fifteen counties of Taiwan around 1950s and 1960s to empirically evaluate whether redistributive land re...

As several cases of the disease caiiea unionypne varieri, ur r uugus Foot, have occurred under my observation and treatment in the Government Charitable Dispensary, Hissar, I subjoin the notes of a case, -which, I hope, will be interesting:? Mota, aged 45, cultivator of Faidalpore, in the Sekur Principality, was admitted into the Hissar Charitable Dispensary on the 10th of June 1876, with enorm...

Study of various transportation indicators could be an appropriate criterion in evaluating the performance of the existing railways throughout the globe. This study was carried out to investigate the performance of rolling stock of Iranian railway using productivity analysis. In order to solve the problems, some solutions were provided by productivity management cycle steps. At the first step, ...

Muslims are prohibited from carrying out economic muamalah activities in any field without knowledge about muamalah. Muzara'ah is an agricultural processing cooperation between the land owner and cultivator, gives to cultivator be planted maintained return for a certain share (percentage) of crop. Farmers who have been working as farmers long time, availability land, application coffee agrofore...