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Mg_(17)Al_(12)(110)表面终端稳定性的密度泛函理论研究
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作者 王家佳 芦子杰 +6 位作者 张开骁 应国兵 李保松 陈建清 宋丹 江静华 马爱斌 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2023年第3期755-764,共10页
Mg_(17)Al_(12)(110)面具有T1~T5共5个可能的终端结构。长期以来,T3一直被认为是该表面最稳定的终端,然而最近的理论计算表明T1终端可能更加稳定。为了解决这一争议,本文作者采用密度泛函理论计算揭示Mg_(17)Al_(12)(110)面最稳定的终... Mg_(17)Al_(12)(110)面具有T1~T5共5个可能的终端结构。长期以来,T3一直被认为是该表面最稳定的终端,然而最近的理论计算表明T1终端可能更加稳定。为了解决这一争议,本文作者采用密度泛函理论计算揭示Mg_(17)Al_(12)(110)面最稳定的终端形式。表面能计算结果表明,不论Mg_(17)Al_(12)(110)面是否存在缺陷,T1总是该面最稳定的终端。T1终端的高稳定性可能与Mg_(17)Al_(12)中的Al截角四面体有关,因为只有沿着T1终端截取Mg_(17)Al_(12)(110)面才不会破坏Al截角四面体的完整性。除了揭示最稳定的终端,还计算了Mg_(17)Al_(12)(110)面的功函数,结果表明该面的功函数主要由表面的AlMg缺陷浓度决定。 展开更多
关键词 Mg_(17)Al_(12) 表面终端 密度泛函理论 表面能 功函数
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Transurethral assistant transumbilical laparoendoscopic single-site radical prostatectomy 被引量:3
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作者 Chen Zhu Jian Su +6 位作者 Lin Yuan Yang Zhang zi-jie lu Yun Su Ning-Hong Wang Xiao-Jian Gu Qing-Yi Zhu 《Asian Journal of Andrology》 SCIE CAS CSCD 2017年第4期473-476,共4页
The laparoendoscopic single-site (LESS) technique is the latest technical innovation in laparoscopic surgery to undergo exponential development in urology. This study undertaken to illustrate our initial experience ... The laparoendoscopic single-site (LESS) technique is the latest technical innovation in laparoscopic surgery to undergo exponential development in urology. This study undertaken to illustrate our initial experience LESS radical prostatectomy (RP) and analyze early outcomes. Nineteen patients diagnosed with prostate cancer underwent LESS-RP in our institute. The patients were divided into two groups: conventional LESS and transurethral assistant LESS. Preoperative, perioperative, postoperative, pathologic, and functional outcomes data were assessed. With the help of a transurethral assistant, the mean operation and anastomosis time were decreased markedly. No focal positive margins were encountered. No prostate-specific antigen recurrence was detected 1 month postoperatively. Complete continence recovery (no pad) was observed in 32% of the patients at 1 month after the operation. No intraoperative and postoperative complications were reported, LESS-RP is a feasible and effective surgical procedure for treatment of prostate cancer. Moreover, transurethral assistant LESS could reduce the difficulty of LESS-RP and shorten the operation time. 展开更多
关键词 laparoendoscopic single-site surgery prostate cancer transurethral assistant
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