Analysis of Metallic Antennas and Scatters by Branko D. Popovic, Branko M. Kolundzija PDF

By Branko D. Popovic, Branko M. Kolundzija

ISBN-10: 0852968078

ISBN-13: 9780852968079

The authors current a comparatively basic, computer-oriented, basic and unified method of the research of steel antennas and scatterers (of electrically small and medium sizes), dependent mostly on their lonesome unique paintings. the tactic looks to supply superiority over current possible choices by means of circumventing many of the problems encountered via these equipment. it's going to be of substantial value to operating antenna engineers and researchers. advent; Modelling of geometry of metal antennas and scatterers; Approximation of present alongside generalised wires and over generalised quadrilaterals; therapy of excitation; Electromagnetic box of currents over generalised floor components; resolution of equations for present distribution; Numerical examples illustrating the alternative of optimal parts of the strategy; Numerical examples illustrating the chances of the strategy; References; Appendices; Index.

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Handbook of Antenna layout, Vol. 1 - ISBN 9780906048825 Propagation of Radiowaves, second version - ISBN 9780852961025

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There are others partly hydraulic and partly mechanical. Presses from 3 to 1000 tons capacity are available. The optimum operating speed is dictated by the size and complexity of the P/M parts to be made. Hydraulic presses produce working force through the application of fluid pressure on a piston by means of pumps, valves, intensifiers and accumulators. Inherent in the hydraulic method of drive transmission is the capability to provide infinite adjustment of stroke speed, length and pressure within the limits of press capacity.

However, it must be borne in mind that the ultimate physical properties of the part are not adversely affected. Sintering temperature can also be adjusted to control growth, the details of which shall be described in the next chapter. 5 Tooling Materials Tooling materials can be classed into three categories: steels, carbides and coated steels. Powdered metals are generally abrasive, which cause tool wear. Apart from abrasion resistance, tools must have the properties of high compression strength and toughness.

Inner surface area of the mixer 5. Constructional material and surface finish of the mixer 6. Volume of the powder in the mixer before mixing 7. Volume of the powder in the mixer after mixing 8. Volume ratio of component powders 9. Volume ratio of mixer to powder 10. Characteristics of component powders 11. Type, location and number of loading and emptying devices 12. Rotational speed of mixer 13. Mixing time 14. Mixing temperature 15. Mixing medium (gaseous or liquid) 16. Humidity, when mixing in air.

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Analysis of Metallic Antennas and Scatters by Branko D. Popovic, Branko M. Kolundzija

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