Additively manufactured polymer tools are evaluated for use in metal forming as prototype and the attempt to make sheet more attractive small production volumes. Printing materials, strategies accuracies presented before tested V-bending groove pressing of 1 mm aluminum sheets. The shows that change surface topography during until a steady state is reached at around five strokes. geometrical ac...

The bending performance of wood is important for its application in furniture, and it one the criteria used to assess suitability a particular species furniture. In this context, steam-bending surface roughness characteristics four forest plantation were evaluated. One batch specimens subjected both experiments using stylus toluene spread methods, while another steaming, clamped, bent circular ...

Abstract In recent years, the demand for a reduction in pollutant emission has become extremely important vehicle industry. It can be achieved through fuel consumption reduction, which is direct function of vehicle’s weight. nowadays weight widely controlled by use advanced- and ultra-high strength steels (AHSS UHSS) body construction. With application such steel sheets as chassis elements, cra...

This report makes a case for the need to examine the methodological foundations of AI. Many aspects of AI have not yet developed to a point of general agreement. The goals of AI work, the methods for acheiving these goals, the presentation of results, and the assessment of claims are all highly contentious issues. All aspects of AI methodology are subject to debate The Workshop on the Foundatio...

Problem 1. Infinite Products and Coproducts in Ab. We have seen that finite products and coproducts agree in Ab. However, the same is not true for infinite products and coproducts. Let I be a set and let {Ai}i∈I be a family of abelian groups, each equal to some fixed group A. (a) Show that the set AI := HomSet(I, A) is an abelian group. Furthermore, show that we can think of this group as the i...

The interdecadal change of the winter-spring tropospheric temperature over Asia and its impact on South China Sea summer monsoon (SCSSM) onset are investigated in this study. SCSSM experiences a significant advance around mid-1990s, which is attributed to positive anomaly meridional gradient mid-upper troposphere May region. This can be traced back previous winter spring, mainly associated with...

Abstract: It is difficult to weigh the light objects by weighing balance accurately when measured individually. If several light objects are weighed in groups rather than individually then the precision of the estimates increases quite considerably. There are two types of balances one is chemical balance and other is spring balance. Spring balance is similar when only one pan of chemical balanc...

We would like to welcome our readers to the twenty-eighth issue of 49 th Parallel and our second of 2012. In the last few months there have been some exciting developments at the journal and we hope that 49 th Parallel will continue to flourish in the future. We would like to welcome our new Articles Editor, Galateia Demetriou, to the 49 th Parallel team. Galateia is a second year doctoral rese...

THE RESPONSE of hitherto known practical forms of seismographs depends upon the relative motion of a pendulum and the moving ground to which ~ts supporting structure is fastened. The various kinds of seismographs differ in the type of pendulum used, such as gravity, spring, torsion, and/or they differ in the type of magnifying and recording elements which they employ. They all measure or indica...