目的:探讨基于Kinect虚拟现实技术的康复训练对脑卒中偏瘫患者步行功能的作用。方法:将脑卒中偏瘫患者40例随机分为实验组(n=20)和对照组(n=20),住院时2组均接受常规康复训练,实验组在此基础上接受的基于Kinect虚拟现实技术的康复训练,...目的:探讨基于Kinect虚拟现实技术的康复训练对脑卒中偏瘫患者步行功能的作用。方法:将脑卒中偏瘫患者40例随机分为实验组(n=20)和对照组(n=20),住院时2组均接受常规康复训练,实验组在此基础上接受的基于Kinect虚拟现实技术的康复训练,每天治疗30min,连续治疗4周。治疗前,治疗4周后分别使用Fugl-Meyer下肢功能评估量表(FMA-LE)、Berg平衡量表(the Berg Balance Scale,BBS)、计时起立行走测试(the Timed Up and Go test,TUG)、10 m步行测试(the 10-meter Walk Test,10mWT)以及三维步态分析,比较评估干预前后下肢功能、平衡及步行功能的变化。结果:治疗前,两组患者FMA、BBS、TUG和10mWT得分以及左右步长差、步速和步频等均无显著差异(P>0.05),治疗4周后与治疗前比较,两组患者FMA、BBS、TUG、10mWT的结果以及左右步长差、步速和步频均有改善(P<0.05)。实验组在治疗前后BBS、TUG、10mWT、左右步长差、步速和步频的变化与对照组有显著性差异(P<0.05)。结论:在常规物理训练疗法的基础上,加上Kinect虚拟现实的游戏训练,可以有效改善脑卒中后患者步行功能。展开更多
目的对比研究计算机辅助光学导航与电磁导航下精准牙种植手术的优缺点。方法 下颌牙列缺损拟行牙种植手术患者10例,采集患者颌骨CBCT影像,5例在计算机辅助光学导航下行牙种植手术,5例在计算机辅助电磁导航下行牙种植手术。术后拍摄CBCT...目的对比研究计算机辅助光学导航与电磁导航下精准牙种植手术的优缺点。方法 下颌牙列缺损拟行牙种植手术患者10例,采集患者颌骨CBCT影像,5例在计算机辅助光学导航下行牙种植手术,5例在计算机辅助电磁导航下行牙种植手术。术后拍摄CBCT进行种植位点评估。结果 两组患者均获得了良好的治疗效果,所有植体均植入理想的颌骨位置中。两组患者植体整体角度偏差范围不超过25°,植入深度偏差均不超过 1.4 mm;光学导航组植体植入角度偏差小于电磁导航组( t =3.5, P <0.05),两组患者植体植入深度差异无显著性( P >0.05)。结论 计算机辅助光学导航与电磁导航下均可完成精准牙种植手术,在应用过程中,两者各有优势和不足,电磁导航对于手术室环境要求较苛刻,在常规环境中精度略低于光学导航。在进一步研究中如果可以将光学导航和电磁导航相结合进行精准牙种植手术,将大大提高计算机辅助导航在牙种植领域的应用范围,特别是为复杂牙种植手术提供新的助力。展开更多
Superimposed basins in West China have experienced multi-stage tectonic events and multicycle hydrocarbon reservoir formation, and complex hydrocarbon reservoirs have been discovered widely in basins of this kind. Mos...Superimposed basins in West China have experienced multi-stage tectonic events and multicycle hydrocarbon reservoir formation, and complex hydrocarbon reservoirs have been discovered widely in basins of this kind. Most of the complex hydrocarbon reservoirs are characterized by relocation, scale re-construction, component variation and phase state transformation, and their distributions are very difficult to predict. Research shows that regional caprock （C）, high-quality sedimentary facies （Deposits, D）, paleohighs （Mountain, M） and source rock （S） are four geologic elements contributing to complex hydrocarbon reservoir formation and distribution of western superimposed basins. Longitudinal sequential combinations of the four elements control the strata of hydrocarbon reservoir formation, and planar superimpositions and combinations control the range of hydrocarbon reservoir and their simultaneous joint effects in geohistory determine the time of hydrocarbon reservoir formation. Multiple-element matching reservoir formation presents a basic mode of reservoir formation in superimposed basins, and we recommend it is expressed as T-CDMS. Based on the multiple-element matching reservoir formation mode, a comprehensive reservoir formation index （Tcdms） is developed in this paper to characterize reservoir formation conditions, and a method is presented to predict reservoir formation range and probability of occurrence in superimposed basins. Through application of new theory, methods and technology, the favorable reservoir formation range and probability of occurrence in the Ordovician target zone in Tarim Basin in four different reservoir formation periods are predicted. Results show that central Tarim, Yinmaili and Lunnan are the three most favorable regions where Ordovician oil and gas fields may have formed. The coincidence of prediction results with currently discovered hydrocarbon reservoirs reaches 97 %. This reflects the effectiveness and reliability of the new theory, methods and technology.展开更多
Forty-six crude oil samples were selected from the Ordovician in the northwestern part of the Tahe oilfield for detailed molecular geochemical and isotopic analysis, including group compositions, carbonhydrogen isotop...Forty-six crude oil samples were selected from the Ordovician in the northwestern part of the Tahe oilfield for detailed molecular geochemical and isotopic analysis, including group compositions, carbonhydrogen isotopes and gas chroma-tograms of saturated hydrocarbons, as well as the characteristics of terpane, sterane and other biomarkers, indicating that crude oils are of the same origin from different districts in the Tahe oilfield and were derived from the same source kitchen (or oil source formation), i.e., mainly stemming from marine hydrocarbons. Detailed studies of oil physical properties of 25-honpane revealed that such oils have heavy or thick oil qualities due to biodegradation. Comprehensive assessment in terms of five maturity parameters shows that the oils from the Ordovician with Ro values varying from 0.80% to 1.59% are widely distributed in the northwest of the Tahe oilfield.展开更多
文摘目的:探讨基于Kinect虚拟现实技术的康复训练对脑卒中偏瘫患者步行功能的作用。方法:将脑卒中偏瘫患者40例随机分为实验组(n=20)和对照组(n=20),住院时2组均接受常规康复训练,实验组在此基础上接受的基于Kinect虚拟现实技术的康复训练,每天治疗30min,连续治疗4周。治疗前,治疗4周后分别使用Fugl-Meyer下肢功能评估量表(FMA-LE)、Berg平衡量表(the Berg Balance Scale,BBS)、计时起立行走测试(the Timed Up and Go test,TUG)、10 m步行测试(the 10-meter Walk Test,10mWT)以及三维步态分析,比较评估干预前后下肢功能、平衡及步行功能的变化。结果:治疗前,两组患者FMA、BBS、TUG和10mWT得分以及左右步长差、步速和步频等均无显著差异(P>0.05),治疗4周后与治疗前比较,两组患者FMA、BBS、TUG、10mWT的结果以及左右步长差、步速和步频均有改善(P<0.05)。实验组在治疗前后BBS、TUG、10mWT、左右步长差、步速和步频的变化与对照组有显著性差异(P<0.05)。结论:在常规物理训练疗法的基础上,加上Kinect虚拟现实的游戏训练,可以有效改善脑卒中后患者步行功能。
文摘目的对比研究计算机辅助光学导航与电磁导航下精准牙种植手术的优缺点。方法 下颌牙列缺损拟行牙种植手术患者10例,采集患者颌骨CBCT影像,5例在计算机辅助光学导航下行牙种植手术,5例在计算机辅助电磁导航下行牙种植手术。术后拍摄CBCT进行种植位点评估。结果 两组患者均获得了良好的治疗效果,所有植体均植入理想的颌骨位置中。两组患者植体整体角度偏差范围不超过25°,植入深度偏差均不超过 1.4 mm;光学导航组植体植入角度偏差小于电磁导航组( t =3.5, P <0.05),两组患者植体植入深度差异无显著性( P >0.05)。结论 计算机辅助光学导航与电磁导航下均可完成精准牙种植手术,在应用过程中,两者各有优势和不足,电磁导航对于手术室环境要求较苛刻,在常规环境中精度略低于光学导航。在进一步研究中如果可以将光学导航和电磁导航相结合进行精准牙种植手术,将大大提高计算机辅助导航在牙种植领域的应用范围,特别是为复杂牙种植手术提供新的助力。
基金the State Key Basic Research Plan 973 Project(2006CB202308)
文摘Superimposed basins in West China have experienced multi-stage tectonic events and multicycle hydrocarbon reservoir formation, and complex hydrocarbon reservoirs have been discovered widely in basins of this kind. Most of the complex hydrocarbon reservoirs are characterized by relocation, scale re-construction, component variation and phase state transformation, and their distributions are very difficult to predict. Research shows that regional caprock （C）, high-quality sedimentary facies （Deposits, D）, paleohighs （Mountain, M） and source rock （S） are four geologic elements contributing to complex hydrocarbon reservoir formation and distribution of western superimposed basins. Longitudinal sequential combinations of the four elements control the strata of hydrocarbon reservoir formation, and planar superimpositions and combinations control the range of hydrocarbon reservoir and their simultaneous joint effects in geohistory determine the time of hydrocarbon reservoir formation. Multiple-element matching reservoir formation presents a basic mode of reservoir formation in superimposed basins, and we recommend it is expressed as T-CDMS. Based on the multiple-element matching reservoir formation mode, a comprehensive reservoir formation index （Tcdms） is developed in this paper to characterize reservoir formation conditions, and a method is presented to predict reservoir formation range and probability of occurrence in superimposed basins. Through application of new theory, methods and technology, the favorable reservoir formation range and probability of occurrence in the Ordovician target zone in Tarim Basin in four different reservoir formation periods are predicted. Results show that central Tarim, Yinmaili and Lunnan are the three most favorable regions where Ordovician oil and gas fields may have formed. The coincidence of prediction results with currently discovered hydrocarbon reservoirs reaches 97 %. This reflects the effectiveness and reliability of the new theory, methods and technology.
基金supported by Science Innovative Foundation of CNPC (Grant No.2008D-5006-01-10)
文摘Forty-six crude oil samples were selected from the Ordovician in the northwestern part of the Tahe oilfield for detailed molecular geochemical and isotopic analysis, including group compositions, carbonhydrogen isotopes and gas chroma-tograms of saturated hydrocarbons, as well as the characteristics of terpane, sterane and other biomarkers, indicating that crude oils are of the same origin from different districts in the Tahe oilfield and were derived from the same source kitchen (or oil source formation), i.e., mainly stemming from marine hydrocarbons. Detailed studies of oil physical properties of 25-honpane revealed that such oils have heavy or thick oil qualities due to biodegradation. Comprehensive assessment in terms of five maturity parameters shows that the oils from the Ordovician with Ro values varying from 0.80% to 1.59% are widely distributed in the northwest of the Tahe oilfield.
