An approach to the application of shift-and-add algorithms on engineering and industrial processes

Different kinds of algorithms can be chosen so as to compute elementary functions. Among all of them, it is worthwhile mentioning the shift-and-add algorithms due to the fact that they have been specifically designed to be very simple and to save computer resources. In fact, almost the only operations usually involved with these methods are additions and shifts, which can be easily and efficiently performed by a digital processor. Shift-and-add algorithms allow fairly good precision with low cost iterations. The most famous algorithm belonging to this type is CORDIC. CORDIC has the capability of approximating a wide variety of functions with only the help of a slight change in their iterations. In this paper, we will analyze the requirements of some engineering and industrial problems in terms of type of operands and functions to approximate. Then, we will propose the application of shift-and-add algorithms based on CORDIC to these problems. We will make a comparison between the different methods applied in terms of the precision of the results and the number of iterations required.

Augmented and Virtual Reality techniques for footwear

The use of 3D imaging techniques has been early adopted in the footwear industry. In particular, 3D imaging could be used to aid commerce and improve the quality and sales of shoes. Footwear customization is an added value aimed not only to improve product quality, but also consumer comfort. Moreover, customisation implies a new business model that avoids the competition of mass production coming from new manufacturers settled mainly in Asian countries. However, footwear customisation implies a significant effort at different levels. In manufacturing, rapid and virtual prototyping is required; indeed the prototype is intended to become the final product. The whole design procedure must be validated using exclusively virtual techniques to ensure the feasibility of this process, since physical prototypes should be avoided. With regard to commerce, it would be desirable for the consumer to choose any model of shoes from a large 3D database and be able to try them on looking at a magic mirror. This would probably reduce costs and increase sales, since shops would not require storing every shoe model and the process of trying several models on would be easier and faster for the consumer. In this paper, new advances in 3D techniques coming from experience in cinema, TV and games are successfully applied to footwear. Firstly, the characteristics of a high-quality stereoscopic vision system for footwear are presented. Secondly, a system for the interaction with virtual footwear models based on 3D gloves is detailed. Finally, an augmented reality system (magic mirror) is presented, which is implemented with low-cost computational elements that allow a hypothetical customer to check in real time the goodness of a given virtual footwear model from an aesthetical point of view.

Photosynthesis and related processes, by Eugene I. Rabinowitch ...

1

Photosynthesis and related processes, by Eugene I. Rabinowitch ...

2, pt.2

Photosynthesis and related processes,

Includes bibliographies.

Automotive manufacturing processes. Volume III - casting and forging processes. Final report.

National Highway Traffic Safety Administration, Office of Research and Development, Washington, D.C.

Lime: its use and value in the industrial and chemical processes.

Mode of access: Internet.

Stereotyping & electrotyping. A guide for the production of plates by the papier-maché and plaster processes, With instructions for depositing copper by the battery or by the dynamo machine. Also hints on steel and brass facing, etc.

"The historical portions of the work ... have been written by Mr. John Southward."--p. vii.

Educational and research activities in civil engineering at the Massachusetts Institute of Technology.

Mode of access: Internet.

Active tectonic and magmatic processes beneath Long Valley Caldera, eastern California : proceedings of workshop XIX : 24-27 January, 1984 /

Mode of access: Internet.

Art principles in portrait photography : composition, treatment of backgrounds, and the processes involved in manipulating the plate /

Mode of access: Internet.

Official street guide and directory of Detroit. A complete reference to streets, corner house numbers, and transportation, industrial, educational and religious institutions.

Mode of access: Internet.

The social, educational and religious state of the manufacturing districts; with statistical returns of the means of education and religious instruction in the manufacturing districts of Yorkshire, Lancashire and Cheshire; in two letters to the Right Hon. Sir Robt. Peel, bart., with an appendix containing a letter to the Right Hon. Lord Wharncliffe, on Sir Jas. Graham's factory education bill; also the objections to the amended bill.

Includes tables.