point defect
3.A numerical method for the point defect impact in transmission fibers on back-pumped fiber Raman amplifiers (B-DFRAs) is derived, accounting to both loss and reflection effects. Characteristics of gain, amplified spontaneous Raman scattering and double Rayleigh backscattering in a B-DFRA with point defect are studied separately, and the comprehensive effect of the point defect is discussed by equivalent receiver sensitivity.
4.Vibration models of one-point defect and multi-points defects for rolling element bearings are established based on the method of demodulated resonance technique (DRT), and one-point defect vibration model is testified to be a so sensitive and reliable method that it could find the fault position exactly.
7.If you had had working experience, the much point that says the good point (not too exaggerative, can decorate appropriately) , defect says as far as possible some have nothing to do of the difficulties, because if you are returned,be the sentence that action fact explains, expose an a few weakness that after should not working for some time, still can appear very easily!
9.Abstract: Based on cross breaks defect formation during uncoilling of hot strip of low carbon steel,the bending deformation,stress distribution,yield point elongation and strain aging of the hot strip during uncoilling and levelling were analyzed by use of the knowledge,such as elastic-plastic mechanics and metal science etc.It is believed that the bad flatness of the hot strip is not responsible for the cross breaks formation.The defect results from yield point elongation of the low carbon steel,thus providing a basis for solution of the cross breaks defect.
10.The formation of the defective dimple and its influencing factors in multi-point forming (MPF) process of sheet metal were analysed mechanically and it was indicated that dimpling defect could be eliminated evidently with elastic cushion.
