A polygon A in a configuration C is called rotary if C admits an automorphism which acts upon A as a one-step rotation. We study rotary polygons and their orbits under the group of automorphisms (and antimorphisms) of C. We determine the number of such orbits for several symmetry types of rotary polygons in the case when C is flag-transitive. As an example, we provide tables of flag-transitive ...

Soil thermal conductivity determines how a soil warms or cools with exchange of energy by conduction, convection, and radiation. The ability to monitor soil thermal conductivity is an important tool in managing the soil temperature regime to affect seed germination and crop growth. In this study, the temperature-by-time data was obtained using a single probe device to determine the soil thermal...

The harvesting and implanting of bone graft is a complicated expensive orthopaedic procedure. This study introduces unique designed hollow drill bit novel technique rotary ultrasonic drilling porcine to get precise hole for screw insertion can harvest cortical with the least debris generation. new diamond impregnated compared conventional surgical without providing vibrations. Also, variation i...