Yan-bo Jin

Publications (2)0 Total impact

• Article: [Outcome of malignant melanoma in gastrointestinal tract: clinical analysis of 70 cases].

  Zhi-yu Li, Jian-qiang Cai, Xiu-Zheng Cui, Yong-fu Shao, Yan-bo Jin
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  ABSTRACT: To investigate the diagnosis and treatments of malignant melanoma in gastrointestinal tract. The clinical data of 70 cases of malignant melanoma in gastrointestinal tract treated between July 1965 and June 2007 were collected and analyzed. There were 27 male and 43 female patients in this group with a median age of 53 years. The melanoma arose from rectum in 50 cases, from anus in 10 cases and from esophagus in 10 cases. The overall 1, 3, 5 years survival rate were 48.3%, 14.6% and 6.5%, respectively, the median survival time was 379 days. Sixty-three cases received operations with or without adjuvant therapy after the operation. There was no significant differences in overall survival rate between the 25 cases received operation only (Group 1) and 38 cases supplemented by adjuvant therapy after operation (Group 2); whereas, the cases with clinical stage III tumor in Group 2 had significantly better survival than their counterparts in Group 1. It was found that the depth of tumor invasion was the risk factor of patient's prognosis on multivariate Cox regression analysis. Operation combined with adjuvant therapy can improve the survival of the patient with stage III melanoma in gastrointestinal tract. The depth of tumor invasion is a risk factor of survival in these patients.
  Zhonghua wai ke za zhi [Chinese journal of surgery] 05/2008; 46(8):574-6.
• Article: The fabrication of GaN‐based optical cavity mirrors by focused ion beam milling

  Qian Ren, Bei Zhang, Jun Xu, Yan Bo Jin, Zhi Jian Yang, Xiao Dong Hu, Zhi Xin Qin, Zhi Zhong Chen, Xiao Min Ding, Yu Zhen Tong, Zhen Sheng Zhang, Guo Yi Zhang, Da Peng Yu, Zi Zhao Gan
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  ABSTRACT: The study of focused Ga ion beam milling for making GaN-based cavity mirrors is presented. The FIB etching rate of GaN was found to be in the rang of 0.6 μm3/nC – 0.43 μm3/nC. Three kinds of mirrors including polishing mirror, tilt mirror and nitride/air distributed Bragg reflection (DBR) mirror were fabricated. In particular, by using the transfer matrix method, the dependences of reflectivity and tolerance on the DBR Bragg order combination, number of DBR pair and nitride fill factor were calculated. To take trade-off between high reflectivity and enough tolerance, the combination of 3rd Bragg order of air gap and 5th Bragg order of semiconductor wall and three pairs were chosen. A deeply etched nitide/air DBR with vertical sidewall was obtained by focused Ga ion beam milling. Negative effects of the FIB on the etched GaN-based mirrors were also noticed. (© 2003 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)
  physica status solidi (c) 11/2003;