Four-roll bending process is usually used for manufacturing of seamed thick-walled and thin-walled cylinders. Due to complexity of this process, the analytical solution of plate bending in this process has not been developed completely. The existence of friction and multi-step processing makes it more difficult. Investigation of four-roll bending process using analytical and numerical methods i...

Prepositions name spatial relationships (e.g., book on a table). But they are also used to convey abstract, non-spatial relationships (e.g., Adrian is on a roll)-raising the question of how the abstract uses relate to the concrete spatial uses. Despite considerable success in delineating these relationships, no general account exists for the two most frequently extended prepositions: in and on....

In this paper we describe a heterogeneous knowledge base management system which is being designed and developed at North Dakota State University with support from IBM Rochester, MN. The system is called KB-HYDRO. It will connect a variety of autonomous local database systems as well as one or more knowledge base systems into one unified system. We show how global serializability and atomic com...

A non-linear mathematical model, for the roll-yaw behaviour of a ship, is used to predict the prevention of capsize of a small ship. The problem was simulated using the digital package SIMULINK. Simulated responses of the ship with simple hydrodynamic fin stabilisers show that capsize could have been prevented by this means in waves up to 7 m in height. Active control using a simple full span c...

For investigation and developing fundamental knowledge about how and why ships and structures behave in an ocean environment Norway started the Centre for Ships and Ocean Structures. One of the research topics of this centre of excellence is parametric roll resonance. Parametric roll resonance is a phenomenon that causes a roll motion to a ship due to longitudinal waves. This roll motion can be...

Roll-call voting and congressional procedures are two of the most heavily studied aspects of the U.S. Congress. To date, little work has focused on the effect of procedures on the composition of the roll-call record. This article takes a step in this direction by demonstrating the effect of chamber rules and institutional constraints on House and Senate roll-call data, as well as on the inferen...

The adhesion strength of a Cu/Cr/polyimide (PI) flexible copper clad laminate (FCCL), which was manufactured by the roll-to-roll process, was evaluated according to the thickness of the Cr seed layer using the 90 peel test. The changes in the morphology, chemical bonding and adhesion properties were characterized by scanning electron microscopy, atomic force microscopy and X-ray photoelectron s...

The face inversion effect, evidence that humans possess a specialized system for face processing, and the (3/4) view advantage, evidence that a canonical viewpoint exists from which faces may be optimally recognized, are two commonly cited findings in the face processing literature. In this paper, the interaction of these effects is examined in a sequential matching paradigm in which unfamiliar...