At its factory near Chester, tubes filled with uranium gas spin, forcing heavy particles to separate from the lighter U235 isotope needed to sustain a nuclear reaction.
He theorized that as protons passed through the mitochondria membrane back to the central region, they caused the wheel--and the attached rod--to spin, forcing the rod to rotate within the stationary cylinder.
This paper discusses miniaturized Pb/HBF4/PbO2 reserve batteries (MRB) for military applications as in-flight power sources for small-caliber electronic fuzes, where the setback acceleration and high-spin force in firing environments are used to activate the MRB.
It shows that during 3D NAT spinning, the spinning forces varies periodically with the revolution angle of the roller around the blank; the spinning force during backward path spinning is greater than that of forward path spinning.
The research on the spinning force aims to optimize the machine design and the processing parameters selection.
The results show that, the splitting spinning force and the splitting spinning moment increase with the increase of yield stress, hardening exponent and elastic modulus.
Furthermore, based on the formula, the laws of initial thickness and initial diameter of workpiece, diameter and splitting angle of splitting roller and feed ratio of splitting spinning influencing on splitting spinning force are investigated.
This paper aims at developing a reasonable formula between splitting spinning force and forming parameters by the principal stress method, and then the reliability of the formula is verified by the comparisons with experimental data.
The investigation of forming parameters influencing on splitting spinning force can provide the foundation for the choice of equipments, the design of dies and the determination of processing parameters.
The influence laws of material parameters, including yield stress, hardening exponent and elastic modulus, on splitting spinning force, splitting spinning moment, degree of inhomogeneous deformation and quality of flange (average thickness and average deviation angle) were investigated by 3D-FE numerical simulation based on elasto-plastic dynamic explicit FEM under ABAQUS/Explicit environment.
Various techniques such as melt-electrospinning, meltblowing, bicomponent spinning, force-spinning, and flash-spinning can be used for the fabrication of nanofibers of thermoplastic polymers.
