Polyacrylonitrile (PAN) fibers of special grade variety for making carbon fibers, have been modified by stretching in the presence of a plastisizer to 70% maximum strain. By doing so, the diameter of the original fibers is reduced from 12.5 p. to 10 CL, and the angle of orientation of the molecular
On the shelf life of PAN precursor
β Scribed by O.P. Bahl; R.B. Mathur; V.K. Matta; P. Siva Ram
- Publisher
- Elsevier Science
- Year
- 1989
- Tongue
- English
- Weight
- 316 KB
- Volume
- 27
- Category
- Article
- ISSN
- 0008-6223
No coin nor oath required. For personal study only.
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## Abstract ## Objectives/Hypothesis: The advice given to patients regarding the shelf life of antimicrobial ear drops is based on little or no evidence. We aimed to determine appropriate recommendations for the shelf life of common antibioticβcontaining topical otic solutions. ## Study Design: