MORPHOLOGICAL PARAMETERS IN RELATION TO THE ELECTROMAGNETIC PROPERTIES OF MICROCELLULAR THERMOPLASTIC POLYURETHANE FOAM IN X-BAND FREQUENCY RANGES

Morphological Parameters in Relation to the Electromagnetic Properties of Microcellular Thermoplastic Polyurethane Foam in X-Band Frequency Ranges

Microcellular thermoplastic polyurethane foams are examined as absorbing materials in the X-band (8.2-12.4 GHz) frequency range by means of experiment.In this work, we aim to establish relationships between foam morphology including cell size and air volume fraction and electromagnetic properties including absorption, transmission and reflection qu

read more

A Minimal Supervisory Structure to Optimally Enforce Liveness on Petri Net Models for Flexible Manufacturing Systems

This paper presents a new method of computing a minimal supervisory structure that optimally enforces liveness on the Petri net models for flexible manufacturing systems (FMSs).The proposed method utilizes the structural properties of a Petri net model to avoid the computation of its reachability graph, which in general leads to luau thank you card

read more

Decommissioning of the self-contained irradiator Gammacell 500

The National Center for Animal and Plant Health used a Gammacell 500 irradiator, with twelve cobalt 60 sealed sources, for sterilization and decontamination of medical devices, pharmaceuticals and ultrastar dc hc550 several raw materials.As the equipmenty had been in operation for 25 years, the decision was taken to dismantle the equipment and deco

read more