In this paper, an analytical model based on Modified Slab Method is presented for rolling of clad sheet or double-layers in which the two layers are bounded prior to rolling. This model considers the general case of asymmetrical rolling due to unequal &#10surface speed, different contact friction, roll diameters, flow stress, and thickness ratios of the two layers. Using this model, rolling par...

In this paper, an analytical model based on Modified Slab Method is presented for rolling of clad sheet or double-layers in which the two layers are bounded prior to rolling. This model considers the general case of asymmetrical rolling due to unequal surface speed, different contact friction, roll diameters, flow stress, and thickness ratios of the two layers. Using this model, rolling param...

Web Science requires efficient techniques for analysing large datasets. Many Semantic Web problems are difficult to solve through common divide-and-conquer strategies, since they are hard to partition. We present MARVIN, a parallel and distributed platform for processing large amounts of RDF data, on a network of loosely-coupled peers. We present our divide-conquer-swap strategy and show that t...

sports spaces are the most important services in the city, that have a significant role in raising physical and mental health citizens. after studying the existing sports spaces in the neighborhood, district, region and city of zanjan, determined levels and percapita sport spaces of zanjan city. a total of 19 spaces sports zanjan city, 9 sport spaces neighborhood-scale, 6 sport spaces district ...

Objective: This survey aimed at finding a model for determining the direct and indirect effects of spouse abuse on the psychological health of victimized women as well as analysis of the mediating roles of social support and coping mechanisms on the relationship between spouse abuse and psychological health condition. Methods: A total of 192 women were selected by random sampling. They compl...

A homogenizable structure M is a structure where we may add a finite number of new relational symbols to represent some ∅−definable relations in order to make the structure homogeneous. In this article we will divide the homogenizable structures into different classes which categorize many known examples and show what makes each class important. We will show that model completeness is vital for...

A detailed historical review is presented and the difficulties arising when defining such a funda mental concept as structural type in crystal chemistry are analyzed. Particular attention is paid to the genetic relationship between different structural types and to the criteria of choosing between them. Many other terms and concepts of modern crystal chemistry defined for completeness. PACS num...

INTRODUCTION Positive mental health is increasingly recognized as an important focus for public health policies and programs. In Canada, the Mental Health Continuum-Short Form (MHC-SF) was identified as a promising measure to include on population surveys to measure positive mental health. It proposes to measure a three-factor model of positive mental health including emotional, social and psyc...

Model building is a fragile and complex process especially in the context of real cases. Each real case problem has its own characteristics with new concepts and conditions. A correct model should have some essential characteristics such as: being compatible with real conditions, being of sufficient accuracy, being logically traceable and etc. This paper discusses how to build an efficient mode...