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Based on Hopkinson pressure bar, consulted existing literature, this essay has designed a Hopkinson pressure-shear device. This article introduces mainly components and principles of experiment equipment, then formulates the next stage of work.
With the rapid development of economic and society, the planning and construction of distribution network mainly focus on the improving of power supply capacity and power supply reliability, while there exists commonly a lack of attention to the operation efficiency and benefits. The existing research about the efficiency of the power industry mainly concentrated in the power generation link, lack...
In the paper, the compression deformation behavior in lead-free solders were conducted on a MTS-809 material tester at the temperature range of 233–398 K with the strain rate in the range of 0.001–0.1 s−1 and the height reduction of 60%. The results show that the stress-strain curves of lead-free solder Sn3.0Ag0.5Cu are influenced by temperature softening and strain rate hardening effects. Based on...
The venture investment is a kind of investment behavior with high-risk. Recognizing the extent of risk in the investment projects can increase the confidence at the venture investment enterprises and projects. This paper analyzes the type and nature of venture investment, deems that market risk and management risk is the center of attention that venture investment focuses on, and also considers that...
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