AIM To evaluate histologically the morphology and characteristics of bone chips harvested intraorally by Safescraper, a specially designed cortical bone collector. MATERIAL AND METHODS Bone chips harvested near a bone defect or in other intraoral sites were grafted into a post-extractive socket or applied in procedures for maxillary sinus floor augmentation or guided bone regeneration. Core b...

We study an actual problem of cleaning conveyor belts from adhered finely divided materials in the process operation belt conveyors. The material remaining on causes numerous problems for transport. In course time, particles fall into subconveyor space, thus violating normal conveyor. This also leads to rapid failures roller supports, excessive abrasion working surface belt, and hence, a more w...

• Film formation was studied using experiments, simulations, and dimensional analyses. Circulations caused by the competition of gravity viscous forces were analyzed. Surface renewal rate super-high-viscosity liquid decreases with increasing viscosity. The scraper can limit film thickness increase surface rate. flow highly on a rotating spoked disk investigated experimentally numerically. In pr...