Antenna and Feeders

Geometric design of part feeders

Preface This thesis considers problems derived from industrial engineering, and treats them in a rather theoretical setting, called ªcomputational geometryº. This work has been carried out within the research group of Mark Overmars, which is centered around applied algorithms, i.e. solving problems that are inspired by practical implications. My ®rst introduction to computational geometry was v...

Protection of Complex Transmission lines – parallel feeders , muti - ended feeders , series - compensated lines Submit to

Preliminary design analysis of linkage feeders.

In 1962 the Committee on Prosthetics Research and Development authorized a survey of current orthotics research and development in a number of selected centers as an initial step in a proposed orthotics evaluation program. A prime purpose of the survey was the identification of orthotic devices and procedures as suitable subject matter for the evaluation program. One of the devices selected as ...

Monitoring Defecation Activity of Infaunal Deposit Feeders

An inexpensive, reliable thermistor device capable of monitoring infaunal foraging activity was built and used in the laboratory to examine effects of temperature on sedlment reworking by the maldanld polychaete Clymenella torquata. The worm defecated at least once per hour 55.0 % (12.0 "C) to 88.2 % (5.5 "C) of the time. Defecation rate was linearly and positively related to temperature. Estim...

Trap Design for Vibratory Bowl Feeders

The vibratory bowl feeder is the oldest and still most common approach to the automated feeding (orienting) of industrial parts. In this paper we consider a class of vibratory bowl filters that can be described by removing polygonal sections from the track; we refer to this class of filters as traps. For an n-sided polygonal part and an m-sided polygonal trap, we give an O(nm log n) algorithm t...