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shape memory alloy wire under different constraint conditions were studied. The results show that the recovery stress rate (dσ/dT) in the second heating cycle increases significantly with the increasing..., the results of differential scanning calorimeter(DSC) measurements show that after the thermomechanical process, the heating curve of the TiNi alloy wire consists of two independent endothermic peaks......
and material alternatives have also been delineated in Appendix 1. JEE et al [48] used the TOPSIS method to develop an interactive program based on Visual Basic programming language. The interactive program.... They highlighted the requirement of a more systematic design tool that could systematically map the requirements to performance index or material properties. MILANI et al [49] evaluated the effect......
, in recent years, DRX phenomena were found in pure Al, Al-Mg, and Al-Zn alloys; and these alloys usually undergo continuous (CDRX) rather than discontinuous (DDRX) dynamic recrystallization during high temperature deformation[2, 4-5]. 7050 aluminum alloy, a typical Al-Zn-Mg-Cu series aluminum alloy, which belongs to precipitation- strengthened alloy, is widely used due to its high strength and low......
and more important[1-2]. Many kinds of advanced lead-acid batteries have been designed for EVs and HEVs[3-5]. The composite of lead-clad fiber glass (Pb-GF composite wire) is a kind of new material... material with other plastic material, such as aluminum-clad copper wire[9-10], little has been reported on the theory of coating a kind of brittle material with plastic material. The Pb-GF composite wire......
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increased [16,25]. 3.5 WEDM of SMAs 3.5.1 MRR in WEDM The WEDM is a type of EDM where the material is eroded from the surface using the number of sparks generated by the wire. HSIEH et al [30] studied... influences the machinability of materials. CHEN et al [16] investigated the electric discharge machining characteristics of a NiAlFe shape memory alloy. The machining properties were evaluated......
with coating a stop welding material and inserting refractory materials[17]. This paper deals with the ultrasonic interface signal features of diffusion bonding joints of dissimilar materials Al/Cu...Ultrasonic echo signal fetures of dissimilar material bonding joints GANG Tie(刚 铁)1, Yasuo TAKAHASHI2 (1. State Key Lab of Advanced Welding Production Technology, Harbin Institute......
factor K, hardening exponent n and anisotropic parameter r) on the formability of deep drawing of aluminum alloy sheets were mainly discussed by LI et al[12] and the optional parameters were identified. The deep drawing of a typical auto panel part was simulated by BAO et al[13], in which the effect of three very important material parameters (yield stress, hardening exponent and anisotropic......
基于PSO的Live Wire交互式图像分割算法依玉峰1,高立群1,崔兆华1,史圣伦21. 东北大学信息科学与工程学院2. 东北财经大学会计学院摘 要:传统Live Wire算法易受伪轮廓干扰,并且算法执行速度较慢.针对这些问题,提出一种基于PSO的Live Wire交互式图像分割算法.算法首先构造新的代价函数,引入相邻节点间梯度幅值变化函数来减轻伪轮廓的干扰,提高了算法的分割精度;其次,为了提高算法的执行效率,应用粒子群算法求取图像中任意两点间最短路径来定位目标边界,并与经典的基于Dijkstra动态规划图搜索的Live Wire算法进行比较.实验结果表明,与传统方法相比,所提算法在分割精度和执行效率上都有很大提高.关键词:Live Wire算法;图像分割;粒子群优化;最短路径......
: Material properties of blank have a great effect on power spinning process of aluminum alloy parts with transverse inner rib. By using finite element(FE) and Taguchi method, the effects... Effects of material properties on power spinning process of parts with transverse inner rib MA Fei(马 飞)1, 2, YANG He(杨 合) 1, ZHAN Mei(詹 梅) 1 1. State Key Laboratory of Solidification Processing......
