The motion of a cylindrical bead in a fluid contained within a two-dimensional channel is investigated using the boundary element method as a model of a biomolecular-motor-powered microfluidics pump. The novelty of the pump lies in the use of motor proteins (kinesin) to power the bead motion and the few moving parts comprising the pump. The performance and feasibility of this pump design is inv...

The research focused on the application of tungsten inert gas (TIG) welding method mild steel metal materials and its optimization input factors along with mechanical response parameters using surface (RSM). study has reviewed many works alongside literature related to study, also revealed that specific studied weld bead geometry properties weldment have not been best researchers' knowledge. ma...

By performing Vickers identifications in the area of weld bead and areas adjacent to it, degree plastic deformation can be assessed, highlighting different hardness case welding base material. During this work, welded specimens were made central with a double V-shaped cord. One was loading until breaking, noting that rupture occurred an further away from area. Another 13 required at varying deg...

A novel computation method of the 3D weld pool surface from specular reflection of laser beams is presented in this paper. The mathematical model for the threedimensional surface measurement technique has been developed. Structured pattern of laser is projected on the weld pool in molten state and the reflection observed using a CCD camera. These reflected patterns can be tracked using image pr...

The pictures show the effect of magnetic fields in different directions, including welding direction, transverse, longitudinal and cusp fields, on shape arc molten pool. field can significantly affect morphology droplet transfer, as well macro microstructure weld bead. Further information be found article, number 2200682 by Yonghua Shi, co-workers.

The primary mechanisms playing a role in the dynamic wheel–rail response to rail weld irregularities in a ballasted track are pointed out. The concept of P1 and P2 forces for metallurgical rail welds, introduced in a first paper [1] concerning the present research, is further elaborated. The dynamic wheel–rail response is simulated for a number of geometrical rail weld measurements. Results sho...

Laser metal deposition (LMD) is an additive manufacturing process in which a powder or wire added to laser-induced molten pool. This localized of material used for the manufacturing, modification, and repair wide range components. The use as feedstock offers various advantages over terms contamination environment, utilization rate, ease handling, price. However, achieve stable well defined geom...