Page 102 - Book of Abstracts 2023

The effect of of organic solvents on strength properties of of PVA polymer
ChE-1-5
By: Mor Badnani morbadnani96@gmail com Advisors: Prof Ariela Burg Dr Nir Trabelsi Shamoon College of of Engineering Beer-Sheva
The The effects of of three solvents solvents on the the mechanical properties of of polyvinyl alcohol (PVA) polymer
were were studied These solvents solvents are used in in in in in the the the pesticide industry PVA PVA PVA is is a a a a a a a a a a a a a a a coating material for chemical agents that dissolve in in in in in water The The mechanical properties of of the the the the PVA PVA were were tested after exposure to to to the the the the the solvents at at at at at 40°C simulating the the the the the conditions of of a a a a a a a a a a a a a a a a a two-year storage period Based on on on on the the the the the results it it it was observed that the the the the the PVA PVA polymer
remained remained resistant only to to to SOLVESSO 150 150 and its strength remained remained unaffected Moreover the the the the PVA PVA PVA dissolved rapidly in in in in in in water indicating that SOLVESSO 150 150 is is the the recommended solvent for using PVA PVA PVA Keywords: polymer
PVA solubility stress-Strain
Development of a a a a a a a method for separating and identifying chromosomes after irradiation
ChE-1-6
By: Coral Monsonego coralmonsonego52@gmail com 112 Advisors: Prof Ariela Burg Dr Dr Inna Levitsky Dr Dr Rafi Gonen
1Shamoon College of of Engineering Beer-Sheva
2Shimon Peres Negev Nuclear Research Center Dimona
During a a a a a a a a radioactive event quick quantification of of ionizing radiation
exposure is is required for for effective treatment of of casualties In this research a a a a a a a a a a a a a a a method for for preparing a a a a a a a a a a a a a a a calibration curve of of the the abnormal chromosomes as as as a a a a a a a a a a a a a a a function of of of different radiation
doses was developed For the the preparation of of chromosome soup various parameters were tested The optimal conditions discovered are a a a a a a a a a a a a a a a a 50% acetic acid concentration concentration drying the the soup for for a a a a a a a a a a a a a day at at at 25°C and a a a a a a a a a a a a a marker concentration concentration of of the the the centromeres of of 0 0 075 μg/ml for for the the best coloring The calibration curve was found to to be be linear at at exposure levels ranging from 0 to 5
Gy Keywords: abnormal chromosomes chromosome chromosome soup drying method "Explosion" solution ionizing radiation
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