The skin of a fast swimming shark reveals riblet structures that help reduce the shark's skin
friction drag, enhancing its efficiency and speed while moving in the water. Inspired by the …

Hydrodynamic bearings are usually employed to support rotating machines, both in the axial
as well as in the radial direction. Both bearing types influence the vibration behavior of …

This research focuses on the optimum design of fluid dynamic bearing (FDB) named
modified spiral design. The objective is to improve the pressure and velocity distribution …

The increment of sterilization resistant bacteria minimizes the effectiveness of disinfectants
which leads researchers into studying other means in minimizing bacterial contamination on …

Tilted pad thrust bearings are used in various rotating machinery that has to withstand high
thrust loading. The thrust load is transferred from a sliding part to a stationary tilted part …

This paper presents micro-needle with different tip and inner structure of the needle for
optimizations of pain stresses and drug or blood deliveries. The micro-needle comes with …

현대 고속 스핀들 분야는 높은 출력을 얻기 위하여모터를 고속으로 회전시킨다. 고속 스핀들 중
진공청소기는 모터 내 먼지를 흡입한다. 먼지는 오일과결합하기 때문에 제거하기 쉽지 않다 …