2篇
您的检索式：作者名="Zuo Congjin"
|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Microstructures and fatigue properties of electron beam welds with beam oscillation for heavy section TC4-DT alloy显示文摘With the development of the manufacturing technology, electron beam welding(EBW) is capable of producing titanium alloy large parts in aero fields. To increase the applications and improve the properties, EBW with beam oscillation was investigated on TC4-DT alloy with50 mm thickness. We detected the welding samples by X-ray NDT, observed the microstructures of the welds, and tested the fatigue properties of the joints. The results showed that EBW with beam oscillation improved the weld morphology as well as welding quality, and the microstructure homogeneity of the welds and HAZ along the weld penetration were also improved. The fatigue properties of the joints with beam oscillation were more excellent than those of conventional EBW, even equal to those of the base metal under high stresses. The influences of the processing and the microstructure on the properties with beam oscillation were discussed. | Fu Pengfei Mao Zhiyong Zuo Congjin Wang Yajun Wang Chunming | 2014 | Chinese Journal of Aeronautics2014，27，4： | 8 |
| 2 | Chinese SPECT semi-quantitative analysis of striatum显示文摘To study and analyze reconstruction parameters in 99mTc-Trodat-l SPECT(Tomography EmissionComputed Single-Photon) brain semi-quantitative analysis,and the outlined methods of ROIs(regions of interests). The 99mTc-trodat-l SPECT brain imaging was processed,and the ROIs were outlined four times from December 2009 to July 2011.The results for each method were analyzed and compared to improve our experience.There was no statistically significance between the outlined number of pixel in both sides of the cerebellum and the ratio of the radioactive counts.From LEHR and FAN beam collimator,the average ratio became better with increasing the outlining method,especially the fourth time.It could be estimated that striatum mean volume(±SD) was(39.51±9.54 ml,in the range of 19.97-51.98 mL) and mean weight(±SD) was(44.09±10.64 g in the range of 22.28-58.01 g).The details of image processing and data analysis should not be ignored to outline appropriate methods,and withstand the repetitive inspection.The total striatum was outlined and its volume and weight was analyzed. | WANG Yuankai LIU Xingdang ZUO Chuantao LIU Congjin LIU Miao ZHANG Guangming CHEN Zhengping TANG Jie | 2012 | Nuclear Science and Techniques2012，23，6： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员