through the use of single-chip microcomputer measurement CNC lathe cutting force, this paper focuses on the single chip microcomputer to implement continuous automatic sampling, A/D conversion, scale transformation and data processing methods. Introduces the principle of the measurement and control system, structure and data acquisition part of the program.
The aim of the study is to test the nexus between energy prices risk and energy efficiency for energy transition to recommend the implication for the period of COVID-19 crises. This study uses short-term daily data of G-20 countries for COVID-19 crises was taken to better estimate the study findings. To estimate the results Data Envelopment Analysis estimation method was applied for empirical inference. The findings revealed that the COVID-19 crises have the biggest negative influence with 47.1% on oil prices which raised energy prices risk at large. The aforementioned results hold even after substituting the magnitude of extreme list of variables, re-estimating the equations with energy efficiency. Such risk has further halted energy efficiency with 33.69% in G-20 countries during COVID-19 which is one of the largest dent of the mankind history. Our results also inferred that the relationship of energy prices risk with energy efficiency remained significant but negative with energy transition. Extending to it, the post-COVID-19, the danger of energy stock price crashes is expected to diminish dramatically. The study suggest that the corporations must participate in greater corporate social responsibility activities have lower post-COVID-19 energy price collapse risk. Finally, we demonstrate that post-COVID-19, the impact of COVID-19 on energy price collapse risk.
In recent years, our country south parts of the rain and snow freeze disaster occurred frequently, which resulted in increased surface of the transmission line icing, gravity, high voltage transmission line widespread damage. In order to avoid the high tension line crushed, to guarantee the normal electricity, you need to clear the ice on the high tension line in time. Through the analysis of all kinds of existing de-icing technology advantages and disadvantages, put forward in this paper, the high tension line of mechanical deicing unit. Paper first puts forward the overall scheme of deicing unit needed to solve in the design of the main problems, and then expounds the axis and in addition to the design and calculation of the ice skates finally, and locking mechanism and regulating mechanism and so on the design of mechanical parts.
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