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Improvement of uniformity in cultivation environment and crop growth rate by hybrid control of air flow devicesBAEK Min-Seon1, KWON Sook-Youn2, LIM Jae-Hyun1(1. Department of Computer Science...; cultivation environment; uniformity; growth rate......
A NOVEL PARAMETER FOR EVALUATING THE FATIGUE CRACK GROWTH RATE IN CARBON STEELS H.Nisitani1,S.Q.Zhu2,N.KAWAGOISHI3,X.S.WANG2 (1.Faculty of Engineering,Kyushu Sangyuo University,Fukuoka,812,Japan... for evaluating the fatigue crack growth rate in carbonsteels.Fatigue crack propagation tests of an annealed 0.42% carbon steel were carriedout under different conditions to investigate the relationship between......
Effects of precipitates on fatigue crack growth rate of AA 7055 aluminum alloy CHEN Jun-zhou(陈军洲) 1, ZHEN Liang(甄 良) 2, YANG Shou-jie(杨守杰)1, DAI Sheng-long(戴圣龙)1 1. Beijing Institute...: The effects of precipitates on the fatigue crack growth rate of AA 7055 Al alloy subjected to different ageing treatments were investigated using transmission electron microscope and fatigue crack......
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to the logarithmic expression of loading rate. (3) For Huanglong limestone, when the growth velocity of crack is lower than 100 m/s, the energy release rate slightly decreases with increasing the growth velocity of crack. However, when the growth velocity of crack is higher than 1 000 m/s, the energy release rate dramatically decreases with an increase in the crack growth velocity. Key words: fracture......
Effects of Heating Rate on Alumina Grain Growth徐崇君,ZHANG Zhixiao,张金咏,LIU Jianghao,ZHANG Fan,FU ZhengyiState Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan...) as heating source. The effect of heating rate on the alumina grain growth was explored based on this rapid-heating method. Comparing with the alumina prepared by two different heating ratios(greater than 1......
STRAIN RATE SENSITIVITY OF ULTRAFINE-GRAINED Cu WITH NANOSIZED TWINS L. Lu1,L.X. Liu1,X.H.Chen1 (1.Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China) Abstract:An ultrafine-grained Cu sample with a high density of growth twins was synthesized by means of pulsed electrodeposition technique. The strain rate......
(ECAE)[7-9]. The grain refinement not only complicates the materials preparation, but also requires low-temperature forming to avoid grain growth during deformation. However, strain rate is a key..., especially about cavities growth during the superplastic deformation under high strain rate. At this review, there is few research of high strain rate about aluminum alloy[11]. Recently, WU......
