Does cal .22 Improve Marksmanship for Police Students in Sweden?

Firearm training could focus on more practical shooting and tactical training if students pass the examination at an earlier stage during their basic training.The aim of this study is to investigate whether minimizing the recoil, and therefore the startle reaction, and/or psychological factors could increase the shooting scores.This study employs a

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Fabrication of phthalonitrile-based copper-clad laminates and their application properties: Thermo-stability and dielectric properties

Various phthalonitrile-based resins were prepared and their copper clad laminates were fabricated in this work.The curing behaviors Styling cream and mechanisms were investigated by Dynamic rheological analysis (DRA) and in-situ FTIR.Results indicated that all phthalonitrile-based resins possessed wide process temperature windows and exhibit good p

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