the study of the dynamic behavior of a rigid body with one fixed point (gyroscope) has a long history. a number of famous mathematicians and mechanical engineers have devoted enormous time and effort to clarify the role of dynamic effects on its movement (behavior) – stable, periodic, quasi-periodic or chaotic. the main objectives of this review are: 1) to outline the characteristic features of...

Globally there is increase trend in caesarean section. Current rate of CS India has increased from 8.5% 2005-06 to 21.5% 2019-20.[NFHS5]. WHO guidelines have recommended a 15%. Caserean sections can lead many significant complications; one these critical complications Surgical Site Infection (SSI) [who] according for 38% hospital acquired infection.

The cold spray technology mainly accelerates the powder in Laval nozzle by gas, ensuring that has a greater velocity at exit of nozzle, and achieving high-efficiency deposition on substrate, thereby obtaining better performance coating. article uses numerical simulation to study influence length expansion section Dimet acceleration effect Al powder. results show is an essential factor affecting...