Analyse on the Influences of the Irregular Surface of Electro-fusion Joint When Tested by Phased Array Ultrasonic Technique 聚乙烯电熔接头表面不规则对超声相控阵检测的影响分析
The results indicate that the steel box column-beam irregular joint has good seismic performance and energy dissipation capacity. 结果表明:钢结构箱形柱与梁异形节点的抗震性能较好;
The results showed that the irregular wear on shoulder improved significantly by opening a small groove in the joint arc near shoulder and arranging the longitudinal grooves reasonably. 分析发现,在靠近胎肩部位的连接弧内开一小花纹沟能够较好地解决肩部偏磨现象;纵向花纹沟的合理布置对抑制胎肩偏磨现象有较明显的作用。
The other findings included central sclerosis of the epiphyseal end-plate ( 60%), vacuum sign in hip joint ( 31.7%), narrowing or sclerosis of the hip joint, blurring and irregular sclerosis of SI joint ( 26.7%). 此外还包括骨骺终板中心硬化(60%),髋关节出现真空(31.7%)、狭窄或稍窄以及髋臼顶增生硬化等。骶髂关节面模糊破坏、凹凸不平硬化(26.7%)等。
Because the fractal theory is a efficient tool to research into irregular signals in the nature, in this paper using it to analyze the ultrasonic testing signals of the friction-welded joint. 分形理论是研究自然界中不规则信号的有效工具,所以本文引入它来研究摩擦焊接头的超声检测信号。
The stress wave propagation and energy dissipation in jointed rocks are investigated by split Hopkinson pressure bar ( SHPB) technique and fractal theory. The influence of the irregular geometrical configuration of the joint surface on the wave propagation, inelastic deformation and energy dissipation has been analyzed. 应用SHPB试验和分形方法研究节理岩石的应力波动与能量耗散关系,分析节理面不规则结构对应力波穿越节理时的波动性质、非弹性变形和能量耗散的影响。
Marmatite is the guide mineral of the second ore type which appears in bedded, veined and irregular ore bodies near contact zone of magmatic rock or joint positions between faults and ore beds. 另一种以铁闪锌矿为标志,矿体呈似层状、脉状及不规则状等,靠近岩体接触带或断裂与赋矿层的交汇部位产出,代表了成矿第二世代。
The main distresses of cement concrete pavement are transverse cracking, irregular surface cracking and joint failures. 水泥混凝土路面最常见的病害主要是断板、表面的不规则裂缝和裂缝处的损坏。
Protruding, irregular, or maloccluded teeth not only can cause oral functional problems including temporomandibular joint dysfunction ( TMD), and problems with mastication, swallowing or speech for the patient, but also can cause psychological problem by ugly appearance. 错(?)畸形作为一种疾病,不仅会给患者造成口腔功能性问题包括颞下颌关节紊乱病,咀嚼、吞咽或发音问题,而且可能严重影响颜面美观而引发心理问题。