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初论昆祁秦缝合系 被引量:51
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作者 边千韬 赵大升 +3 位作者 叶正仁 常承法 罗小全 高山林 《地球学报》 EI CAS CSCD 北大核心 2002年第6期501-508,共8页
中央造山带范围内的诸多新元古代晚期-早古生代蛇绿岩带可视为一个系统——昆祁秦缝合系。大致可分西、中、东3段。西段包括库地-苏巴什和麻扎-康西瓦2条缝合带及西昆中微地块;中段包括阿尔金、北祁连、柴达木北缘、祁漫塔格-乌妥及东... 中央造山带范围内的诸多新元古代晚期-早古生代蛇绿岩带可视为一个系统——昆祁秦缝合系。大致可分西、中、东3段。西段包括库地-苏巴什和麻扎-康西瓦2条缝合带及西昆中微地块;中段包括阿尔金、北祁连、柴达木北缘、祁漫塔格-乌妥及东昆仑南缘5条缝合带和中-南祁连、柴达木、阿牙克库木及玛沁4个较大的微地块及诸多较小的微地块;东段为商丹缝合带和勉略缝合带及其所夹持的秦中-大别微地块。昆祁秦缝合系是Rodinia超大陆经历了早-中震旦世(约780~600Ma)初期裂解阶段,晚震旦世-奥陶纪(约600~440Ma)昆祁秦多岛洋阶段,晚奥陶世-早志留纪(约440~400Ma)昆祁秦多岛洋闭合阶段形成的一个包含若干条缝合带和若干个微地块的体系,是中央造山带的基础。 展开更多
关键词 昆祁秦缝合系 蛇绿岩 缝合系 新元古代-早古生代 中央造山带
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初论秦祁昆缝合系 被引量:4
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作者 边千韬 李涤徽 +3 位作者 高山林 叶正仁 常承法 罗小全 《地质学报》 EI CAS CSCD 北大核心 2001年第4期569-569,共1页
中央造山带范围内的诸多新元古代晚期至早古生代蛇绿岩带可视为一个系统-昆祁秦缝合系。它大致可分西、中、东三段。西段包括库地-苏巴什和麻扎-康西瓦两条缝合带及西昆中微地块;中段包括阿尔金、北祁连、柴达木北缘、祁漫塔格-乌... 中央造山带范围内的诸多新元古代晚期至早古生代蛇绿岩带可视为一个系统-昆祁秦缝合系。它大致可分西、中、东三段。西段包括库地-苏巴什和麻扎-康西瓦两条缝合带及西昆中微地块;中段包括阿尔金、北祁连、柴达木北缘、祁漫塔格-乌妥、及东昆仑南缘5条缝合带和中-南祁连、柴达木、阿牙克库木及玛沁4个较大的微地块及诸多较小的微地块;东段为商丹缝合带和勉略缝合带及其所夹持的秦中-大别微地块。昆祁秦缝合系是Rodinia超大陆经历了早-中震旦纪(约780-600Ma)初期裂解阶段、晚震旦世-奥陶纪(约600-440Ma)昆祁秦多岛洋阶段、晚奥陶世-早志留纪(约440-400Ma)昆祁秦多岛洋闭合阶段,形成的一个包含若干条缝合带和若干个微地块的体系,是中央造山带的基础。 展开更多
关键词 秦祁昆缝合系 造山带 RODINIA超大陆 新元古代 早古生代 蛇绿岩带
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油画作品选登
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《美术大观》 2000年第9期30-31,共2页
关键词 作品选 油画 缝合系 夜风 美术 掠过 出版社 辽宁 画风
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Clinical Study on Suspension Pancreatic-Duct-Jejunum End-to-Side Continuous Suture Anastomosis in Pancreaticoduodenectomy 被引量:5
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作者 Ke Dong Wei Xiong +1 位作者 Xiao-jiong Yu Chun Gu 《Chinese Medical Sciences Journal》 CAS CSCD 2013年第1期34-38,37-38,共5页
Objective To study the influence of Suspension Pancreatic-Duct-Jejunum End-to-Side Continuous Suture Anastomosis (SPDJCS) on the incidence of pancreatic fistula after pancreaticoduodenectomy, and to analyze its appl... Objective To study the influence of Suspension Pancreatic-Duct-Jejunum End-to-Side Continuous Suture Anastomosis (SPDJCS) on the incidence of pancreatic fistula after pancreaticoduodenectomy, and to analyze its applicability, safety, and efficacies. Methods A prospective controlled trial was conducted with 165 cases receiving pancreati- coduodenectomy in the Department of Hepatopancreatobiliary Surgery from January 2010 to May 2012. The patients were divided into Group A (end-to-end/end-to-side invaginated anastomosis, n=52), Group B (end-to-side mucosal anastomosis, n=48), and Group C (SPDJCS, n=65). The preoperative data, intra- operative data, and operative outcomes (incidence of pancreatic fistula, operation time, intraoperative blood loss, peritoneal drainage, peritoneal hemorrhage, peritoneal abscess, delayed gastric emptying, pulmonary infection, postoperative infection, blood transfusion, and perioperative mortality) were com- pared among the 3 groups. Results The total incidence of pancreatic fistula was 13.9% (23/165) in all the 165 patients. The inci- dence in Group A and Group B was 23.1% (12/52) and 18.8% (9/48), both higher than that in Group C [3.1% (2/65), both P〈0.05]. Group C showed significantly better outcomes than group A and B in terms of the opera- tion time (5.5±1.2 hours vs. 6.1±1.1 hours, 5.5±1.2 hours vs. 6.3±1.5 hours), volume of blood loss (412.0±205.0 mL vs. 525.0±217.0 mL, 412.0±205.0 mL vs. 514.0±217.0 mL), and postoperative drainage amount of plasma tubes (175.0±65.0 mE vs. 275.0±80.0 mL, 175.0±65.0 mL vs. 255.0±75.0 mL) (all P〈0.05), while Group A and Group B displayed no difference in these aspects (P〉0.05). As complications other than pancreatic fistula were concerned, the three groups were not different from each other (P〉0.05). Conclusions SPDJCS may have the effect of reducing the incidence of pancreatic fistula after pan- creaticoduodenectomy. It could be safe, practical and convenient technique of anastomosis for pancreaticoje- junostomy. 展开更多
关键词 PANCREATICODUODENECTOMY pancreatic fistula PANCREATICOJEJUNOSTOMY con- tinuous suture suspension of pancreatic duct
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腹腔镜下右半结肠切除术
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作者 徐靖 《中华普外科手术学杂志(电子版)》 2022年第5期494-494,共1页
本手术为腹腔镜下右半结肠切除术式,中央入路解剖血管、清扫主干旁淋巴结,头侧游离结肠肝曲,尾侧入路掀起右半结肠,将右半结肠相应血管离断、淋巴结清扫展示出来,尤其是处理Henle干。手术时间总长约60min,视频剪辑后无加速,基本能反映... 本手术为腹腔镜下右半结肠切除术式,中央入路解剖血管、清扫主干旁淋巴结,头侧游离结肠肝曲,尾侧入路掀起右半结肠,将右半结肠相应血管离断、淋巴结清扫展示出来,尤其是处理Henle干。手术时间总长约60min,视频剪辑后无加速,基本能反映出手术全程步骤的各个细节,全程手术层次入路标准,几乎无出血。腔镜下操作及缝合动作流畅,手术流程亮点包括血管解剖、淋巴结清扫、腔内关闭系膜。 展开更多
关键词 结肠切除术 淋巴结切除术 腹腔镜 中央入路 腔内缝合系
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Detrital zircon age model of Ordovician Wenquan quartzite south of Lungmuco-Shuanghu Suture in the Qiangtang area, Tibet: Constraint on tectonic affinity and source regions 被引量:40
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作者 DONG ChunYan LI Cai +4 位作者 WAN YuSheng WANG Wei WU YanWang XIE HangQiang LIU DunYi 《Science China Earth Sciences》 SCIE EI CAS 2011年第7期1034-1042,共9页
Early to Middle Ordovician strata, including Wenquan quartzite, occur widely in the Himalaya, Lhasa, and south Qiangtang blocks. The Wenquan quartzite occurs on the south side of the Lungmuco-Shuanghu Suture in the Qi... Early to Middle Ordovician strata, including Wenquan quartzite, occur widely in the Himalaya, Lhasa, and south Qiangtang blocks. The Wenquan quartzite occurs on the south side of the Lungmuco-Shuanghu Suture in the Qiangtang area, Tibet. A total of 145 analyses on detrital zircons from the quartzite show five age ranges of 520-700, ca. 800, 900-1100, 1800-1900, and 2400-2500 Ma, with particularly distinct age peaks of 625 and 950 Ma. The reliable youngest detrital zircon age is 525 Ma, and the oldest, 3180 Ma. Detrital zircons show large variations in Hf isotope composition, with depleted mantle model ages t DM (Hf) ranging from 750 to 3786 Ma. Based on data obtained in this study and by others, the main conclusions are as follows: 1) Low-grade metamorphic sedimentary rocks are distributed extensively in the south of the Lungmuco-Shuanghu Suture and are Phanerozoic in age; 2) Pan-African and Grenville-Jinning tectono-thermal events were well developed in the source region of the Wenquan quartzite; 3) the source region shows crustal addition and recycling of different periods; 4) Wenquan quartzite was derived from the Gondwana metamorphic basement, suggesting that the Qiangtang block is a Gondwanan fragment. 展开更多
关键词 GONDWANA Tibetan Plateau detrital zircon SHRIMP dating Hf isotope Pan-African movement Grenville-Jinningmovement
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Modeling complex crack problems using the three-node triangular element fitted to numerical manifold method with continuous nodal stress 被引量:6
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作者 YANG YongTao XU DongDong +1 位作者 SUN GuanHua ZHENG Hong 《Science China(Technological Sciences)》 SCIE EI CAS CSCD 2017年第10期1537-1547,共11页
A three-node triangular element fitted to numerical manifold method with continuous nodal stress, called Trig_3-CNS(NMM)element, was recently proposed for linear elastic continuous problems and linear elastic simple c... A three-node triangular element fitted to numerical manifold method with continuous nodal stress, called Trig_3-CNS(NMM)element, was recently proposed for linear elastic continuous problems and linear elastic simple crack problems. The Trig_3-CNS(NMM) element can be considered as a development of both the Trig_3-CNS element and the numerical manifold method(NMM).Inheriting all the advantages of Trig_3-CNS element, calculations using Trig_3-CNS(NMM) element can obtain higher accuracy than Trig_3 element without extra degrees of freedom(DOFs) and yield continuous nodal stress without stress smoothing. Inheriting all the advantages of NMM, Trig_3-CNS(NMM) element can conveniently treat crack problems without deploying conforming mathematical mesh. In this paper,complex problems such as a crucifix crack and a star-shaped crack with many branches are studied to exhibit the advantageous features of the Trig_3-CNS(NMM) element. Numerical results show that the Trig_3-CNS(NMM) element is prominent in modeling complex crack problems. 展开更多
关键词 numerical manifold method Trig3-CNS (NMM) element stress intensity factor complex crack problems
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