NATURAL AGEING OF POLYARAMIDE FIBER FROM BALLISTIC ARMOR

Natural ageing of polyaramide fiber from ballistic armor

Abstract Ballistic armor has been manufactured primarily based on polyaramide (Kevlar and Twaron) or Dyneema but the lifespan warranty in Brazil is only 5 years and after this time period they are incinerated or comminuted and ground up.This study aims to evaluate the changes on the physical, mechanical and morphological properties of polyaramide f

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Lymphoepithelial Carcinoma of Parotid Gland- A Case Report

Lymphoepithelial carcinoma (LEC) is most commonly seen in the nasopharynx.Very rarely it is found in the salivary gland, preferably in parotid gland followed by submandibular gland where it accounts for 0.4% arrethe bush balm of all malignant salivary gland tumours.Most commonly it is seen in fifth decade with female predominance.Significant correl

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A Feasibility Study to Reduce the Contamination of Photoneutrons and Photons in Organs/Tissues during Radiotherapy

Introduction: Due to out-of-field effects in radiation therapy, the determination and reduction of both unwanted photon and photoneutron doses are essential for the reasonable assessment of the risks to healthy tissues.Material and Methods: By the application of a multilayer shield throughout the phantom and using two models for photoneutron and ph

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