Through adjusting the space location of spiral arms together with parameters of individual spiral profile including base radius, involute pitch, involute angle, start angle of involute, width of slot, various spiral flexure springs with different performances can be obtained respectively.
The Glancing Angle Deposition, GLAD, technique was implemented to transform the typical columnar microstructure into the desired inclined, zigzag and spiral profiles.
This indicated that this geometry with a creative spiral corrugation profile can improve the heat transfer significantly with reasonable increase in friction factor.
This was an indication that the geometric expression with spiral corrugation profile could significantly enhance the efficiency of heat transfer with significantly increased friction factors.
The vortex beam with the topological charge of 1 can be generated by metasurfaces with spiral phase profile ranging from 0 to 2π with identical phase increment along the azimuthal direction.
Delinquencies are spiralling.
I started lightly spiralling.
There was anxiety among many, however, that the costs for some high-profile buildings were spiraling out of control.
