This paper aims at exploring the tectonic characteristics of the South China Continent （SCC） and extracting the universal tec- tonic rules from these characteristics,to help enrich the plate tectonic theory and bett...This paper aims at exploring the tectonic characteristics of the South China Continent （SCC） and extracting the universal tec- tonic rules from these characteristics,to help enrich the plate tectonic theory and better understand the continental dynamic system. For this purpose, here we conduct a multi-disciplinary investigation and combine it with the previous studies to reas- sess the tectonics and evolution of SCC and propose that the tectonic framework of the continent comprises two blocks, three types of tectonic units, four deformation systems, and four evolutionary stages with distinctive mechanism and tectonic characteris- tics since the Neoproterozoic. The four evolutionary stages are： （1） The amalgamation and break-up of the Neoproterozoic plates, typically the intracontinental rifting. （2） The early Paleozoic and Mesozoic intracontinental orogeny confined by plate tectonics, forming two composite tectonic domains. （3） The parallel operation of the Yangtze cratonization and intracontinental orogeny, and multi-phase reactivation of the Yangtze craton. （4） The association and differentiation evolution of plate tectonics and intraconti- nental tectonics, and the dynamic characteristics under the Meso-Cenozoic modem global plate tectonic regime.展开更多
目的:比较肱骨干骨折手术与非手术治疗方法的临床疗效,以期指导临床选择。方法:连续入选2005年3月至2012年10月间有完整随访资料的患者252例,根据治疗方法的不同将患者分为保守治疗组和手术内固定组,其中保守治疗组76例使用石膏或小夹...目的:比较肱骨干骨折手术与非手术治疗方法的临床疗效,以期指导临床选择。方法:连续入选2005年3月至2012年10月间有完整随访资料的患者252例,根据治疗方法的不同将患者分为保守治疗组和手术内固定组,其中保守治疗组76例使用石膏或小夹板固定骨折,手术内固定组176例使用切开复位钢板或髓内针固定骨折。对两组间并发症发生率、骨折愈合时间、骨折愈合率、Constant-Murley肩关节功能评分和Mayo肘关节功能评分等参数进行比较。结果:平均随访(31.24±20.06)个月。两组数据在年龄、开放骨折数量、骨折部位和AO(Arbeitsgemeinschaft für Osteosynthesefragen)分类方面差异没有统计学意义。骨折愈合率:保守治疗组96.1%(73/76),手术内固定组97.7%(172/176),P=0.46;骨折愈合时间:保守治疗组(10.24±2.93)周,手术内固定组(10.69±2.51)周,P=0.22;并发症发生率:保守治疗组5.3%(4/76例),手术内固定组15.3%(27/176例),P=0.025;其中骨折不愈合率:保守治疗组3.95%(3/76),手术内固定组2.3%(4/176),P=0.43;桡神经损伤:保守治疗组0%(0/76),手术内固定组5.7%(10/176),P=0.035;骨劈裂:保守治疗组0%(0/76),手术内固定组1.7%(3/176),P=0.556;肘僵硬:保守治疗组1.3%(1/76),手术内固定组0.6%(1/176),P=1.000;肩痛:保守治疗组0%(0/76),手术内固定组5.1%(9/176),P=0.061。Constant-Murley肩关节功能评分:保守治疗组(97.37±4.94)分,手术内固定组(96.34±6.88)分,P=0.24;Mayo肘关节功能评分:保守治疗组(99.80±1.72)分,手术内固定组(99.49±2.73)分,P=0.36。结论:肱骨干骨折保守治疗与手术治疗的疗效相当,但并发症少。展开更多
Ritz method is an effective way widely used to analyze the transverse bending of thin rectangular plates. Its accuracy depends completely on the basis functions selected. This paper selects the superposition of sine s...Ritz method is an effective way widely used to analyze the transverse bending of thin rectangular plates. Its accuracy depends completely on the basis functions selected. This paper selects the superposition of sine series with polynomials as the basis functions of thin rectangular plates. The calculating formulae are not only simple and easily programmed, but also have high accuracy. Finally, two numerical results are given and compared with those obtained by the classical method.展开更多
For plane singly-connected domains with insulating boundary and four point-sized contacts, C<sub>0</sub> …C<sub>3</sub>, van der Pauw derived a famous equation relating the two trans-...For plane singly-connected domains with insulating boundary and four point-sized contacts, C<sub>0</sub> …C<sub>3</sub>, van der Pauw derived a famous equation relating the two trans-resistances R<sub>01,23</sub>, R<sub>12,30</sub> with the sheet resistance without any other parameters. If the domain has one hole van der Pauw’s equation becomes an inequality with upper and lower bounds, the envelopes. This was conjectured by Szymański et al. in 2013, and only recently it was proven by Miyoshi et al. with elaborate mathematical tools. The present article gives new proofs closer to physical intuition and partly with simpler mathematics. It relies heavily on conformal transformation and it expresses for the first time the trans-resistances and the lower envelope in terms of Jacobi functions, elliptic integrals, and the modular lambda elliptic function. New simple formulae for the asymptotic limit of a very large hole are also given.展开更多
基金supported by the special grant of Ministry of Science and Technology of the People’s Republic of China for State Key Laboratory of Continental Dynamics,Northwest University,the key research project of Sinopec Group(Grant No.YPH08012)the National Natural Science Foundation of China(Grant Nos.41190072,41190073,41190074,41190070)
文摘This paper aims at exploring the tectonic characteristics of the South China Continent （SCC） and extracting the universal tec- tonic rules from these characteristics,to help enrich the plate tectonic theory and better understand the continental dynamic system. For this purpose, here we conduct a multi-disciplinary investigation and combine it with the previous studies to reas- sess the tectonics and evolution of SCC and propose that the tectonic framework of the continent comprises two blocks, three types of tectonic units, four deformation systems, and four evolutionary stages with distinctive mechanism and tectonic characteris- tics since the Neoproterozoic. The four evolutionary stages are： （1） The amalgamation and break-up of the Neoproterozoic plates, typically the intracontinental rifting. （2） The early Paleozoic and Mesozoic intracontinental orogeny confined by plate tectonics, forming two composite tectonic domains. （3） The parallel operation of the Yangtze cratonization and intracontinental orogeny, and multi-phase reactivation of the Yangtze craton. （4） The association and differentiation evolution of plate tectonics and intraconti- nental tectonics, and the dynamic characteristics under the Meso-Cenozoic modem global plate tectonic regime.
文摘目的:比较肱骨干骨折手术与非手术治疗方法的临床疗效,以期指导临床选择。方法:连续入选2005年3月至2012年10月间有完整随访资料的患者252例,根据治疗方法的不同将患者分为保守治疗组和手术内固定组,其中保守治疗组76例使用石膏或小夹板固定骨折,手术内固定组176例使用切开复位钢板或髓内针固定骨折。对两组间并发症发生率、骨折愈合时间、骨折愈合率、Constant-Murley肩关节功能评分和Mayo肘关节功能评分等参数进行比较。结果:平均随访(31.24±20.06)个月。两组数据在年龄、开放骨折数量、骨折部位和AO(Arbeitsgemeinschaft für Osteosynthesefragen)分类方面差异没有统计学意义。骨折愈合率:保守治疗组96.1%(73/76),手术内固定组97.7%(172/176),P=0.46;骨折愈合时间:保守治疗组(10.24±2.93)周,手术内固定组(10.69±2.51)周,P=0.22;并发症发生率:保守治疗组5.3%(4/76例),手术内固定组15.3%(27/176例),P=0.025;其中骨折不愈合率:保守治疗组3.95%(3/76),手术内固定组2.3%(4/176),P=0.43;桡神经损伤:保守治疗组0%(0/76),手术内固定组5.7%(10/176),P=0.035;骨劈裂:保守治疗组0%(0/76),手术内固定组1.7%(3/176),P=0.556;肘僵硬:保守治疗组1.3%(1/76),手术内固定组0.6%(1/176),P=1.000;肩痛:保守治疗组0%(0/76),手术内固定组5.1%(9/176),P=0.061。Constant-Murley肩关节功能评分:保守治疗组(97.37±4.94)分,手术内固定组(96.34±6.88)分,P=0.24;Mayo肘关节功能评分:保守治疗组(99.80±1.72)分,手术内固定组(99.49±2.73)分,P=0.36。结论:肱骨干骨折保守治疗与手术治疗的疗效相当,但并发症少。
文摘Ritz method is an effective way widely used to analyze the transverse bending of thin rectangular plates. Its accuracy depends completely on the basis functions selected. This paper selects the superposition of sine series with polynomials as the basis functions of thin rectangular plates. The calculating formulae are not only simple and easily programmed, but also have high accuracy. Finally, two numerical results are given and compared with those obtained by the classical method.
文摘For plane singly-connected domains with insulating boundary and four point-sized contacts, C<sub>0</sub> …C<sub>3</sub>, van der Pauw derived a famous equation relating the two trans-resistances R<sub>01,23</sub>, R<sub>12,30</sub> with the sheet resistance without any other parameters. If the domain has one hole van der Pauw’s equation becomes an inequality with upper and lower bounds, the envelopes. This was conjectured by Szymański et al. in 2013, and only recently it was proven by Miyoshi et al. with elaborate mathematical tools. The present article gives new proofs closer to physical intuition and partly with simpler mathematics. It relies heavily on conformal transformation and it expresses for the first time the trans-resistances and the lower envelope in terms of Jacobi functions, elliptic integrals, and the modular lambda elliptic function. New simple formulae for the asymptotic limit of a very large hole are also given.
