The protein layer's durability stems from its molecular structure. The protein molecules maintain a flexible helical shape ...

The tester offers a low cost, rugged and reproducible technique for quantifying the page pull strength of perfect-bound books. The Page Pull Tester enables an efficient binding endurance test. This ...

Then the tangential internal stresses are added to the normal ones. The total stresses in this case increase substantially. The occurrence of internal stresses during formation of the polymeric film ...