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Braking mode of high-speed train is an important factor that affects train velocity and operation safety, the analysis of braking mode is of great significance for high-speed train's speed-up and the improvement of transport capacity. With the research into high-speed railway braking system and relative theories of the calculation analyzed, calculation of braking force, braking distance, and the target-distance...
This study aims to explore factors affecting the creative teaching efficacy of technical and vocational education teachers, and to make suggestions for creative teaching. The research method is survey research. Using “A Survey on Factors Influencing Technical and Vocational Education Teachers' Creative Teaching Efficacy” as a research tool, this study surveys 314 technical and vocational education...
65 nm BEOL trench etch is apt to suffer the marginal PR issue. It is a big challenge for trench etch process to simultaneously satisfy the requirements for both metal resistance (Rs) and breakdown Voltage (VBD). The copper surface condition of via bottom is a big concern of trench etch process as well. In this paper, we present several electrical parameter issues that occurred at 65 nm trench etch...
Substrate noise is an important problem in single chip solution. An experimental study and a physical model describing substrate noise suppression by patterned ground shield (PGS) of inductors are presented in this paper. Different grounding methods of PGS are used to compare the different effects on substrate noise suppression. To make the design immune to substrate noise, the parasitic inductance...
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