In recent years, the rapid innovation and development of financial industry has made financial enterprises have a lot of information. However, the large amount of information is tampered with and fragmented, which can...In recent years, the rapid innovation and development of financial industry has made financial enterprises have a lot of information. However, the large amount of information is tampered with and fragmented, which cannot be shared. With the constant innovation of science and technology, it is the most effective way to solve the information lag and asymmetry of financial products. This article aims to start from the problem of asymmetric information of financial products, the analysis of the emerging block chain technology applied in the financial sector, and with the development of asset securitization information known as the typical scenario for the first time, a concrete analysis information game process, and discuss about the application of chain blocks in securitization feasibility.展开更多
目的探讨超声引导下双侧胸腰筋膜平面阻滞(TLIPB)对行经皮椎间孔镜腰椎间盘切除术(PTED)的椎间盘源性腰痛(DLBP)患者的围术期镇痛效果。方法选取57例椎间盘源性腰痛患者,使用计算机生成的随机编号将患者分为A组(对照组)28例患者,B组(超...目的探讨超声引导下双侧胸腰筋膜平面阻滞(TLIPB)对行经皮椎间孔镜腰椎间盘切除术(PTED)的椎间盘源性腰痛(DLBP)患者的围术期镇痛效果。方法选取57例椎间盘源性腰痛患者,使用计算机生成的随机编号将患者分为A组(对照组)28例患者,B组(超声引导下双侧胸腰筋膜平面阻滞组)29例患者。比较两组患者术前(t_(0))、术后2 h(t_(1))、术后6 h(t_(2))、术后12 h(t_(3))及术后24 h(t_(4))静息和翻身时视觉模拟疼痛评分(VAS)的差异。比较两组患者术前及术后24 h 15项恢复质量评分(QoR-15)的差异。比较两组患者入室后(T_(0))、切皮时(T_(1))、椎间孔成形时(T_(2))、外科医生认定疼痛最剧烈时(T_(3))、手术结束时(T_(4))的平均动脉压(MAP)和心率(HR)变化的差异。记录术中及术后24 h内不良事件。结果所有患者均顺利完成手术和超声引导下双侧TLIPB,无椎间隙感染,无脊髓、神经根和血管损伤,无恶心呕吐等严重并发症。两组患者组内术后各时间点静息及翻身时VAS评分及术后24 h QoR-15评分均较术前显著降低,差异有统计学意义(P<0.05)。两组患者术前及术后各时间点静息时VAS评分差异无统计学意义(P>0.05)。两组患者术后2 h、术后6 h及术后12 h翻身时VAS评分差异有统计学意义(P<0.05),其余时间点差异无统计学意义(P>0.05)。两组患者术前及术后24 h QoR-15评分相比差异有统计学意义(P<0.05),且两组患者术后24 h QoR-15评分相比差异有统计学意义(P<0.05)。两组患者椎间孔成形时(T_(2))和外科医生认定疼痛最剧烈时(T3)时MAP及HR差异有统计学意义(P<0.05)。结论超声引导下双侧胸腰筋膜平面阻滞可以有效缓解PTED术后疼痛,减少围术期应激反应及不良事件的发生,加速患者术后康复。展开更多
With rapid advancements in Infra-Red (IR) detection techniques, the range from where the IR-guided missiles are able to lock the target aircraft has increased. To avoid the detection and tracking by modern IR-guided m...With rapid advancements in Infra-Red (IR) detection techniques, the range from where the IR-guided missiles are able to lock the target aircraft has increased. To avoid the detection and tracking by modern IR-guided missiles, the aircraft and helicopters also demand progress in its stealth techniques. Hence, study of Infra-Red Signature Suppression (IRSS) systems in aircraft and helicopters has become vital even in design stage. Optical blocking (masking) is one of the effective IRSS techniques used to block the Line- Of-Sight (LOS) of the hot engine parts of the exhaust geometry. This paper reviews the various patents on IR signature suppression systems based on the optical blocking method or a combination of IRSS techniques. The performance penalties generated due to installation of various IRSS methods in aircraft and helicopters are also discussed.展开更多
The aim of this retrospective practice audit was to assess the correlation between painful zygapophysial joints and changes seen in magnetic resonance imaging (MRI). Patients with unilateral pain were tested with cont...The aim of this retrospective practice audit was to assess the correlation between painful zygapophysial joints and changes seen in magnetic resonance imaging (MRI). Patients with unilateral pain were tested with controlled medial branch blocks. The MRI scans of patients with a positive response were compared blinded with normal MRI scans. The dimensions of the joint were assessed and osteoarthritis was graded. Fifteen symptomatic patients and 15 asymptomatic patients were included and evaluated. Comparison of the joints showed that the maximum diameter of symptomatic joints was significantly larger, and the grading of osteoarthritis was significantly higher for symptomatic joints. No healthy patient was assigned a grade 3. Grades 2 and 3 were found significantly more often in symptomatic patients. Only one symptomatic joint was assigned grade 0. Grade 0 was found significantly more often in asympto-matic patients. The presented MRI technique has limited value as a diagnostic test for lumbar zygapophysial joint pain. It is not possible to detect a single symptomatic joint. However, the osteoarthritis grading for the lumbar zyg-apophysial joints might be helpful for finding predictors for negative response if the results of the rating are grade zero. Therefore, unnecessary medial branch blocks might be avoided.展开更多
A multi-block model and a corresponding computer program have been developed which predict the kinematics of landslides.Furthermore,a unique event for studying different models simulating the triggering and movement o...A multi-block model and a corresponding computer program have been developed which predict the kinematics of landslides.Furthermore,a unique event for studying different models simulating the triggering and movement of landslides is the 2008Wenchuan earthquake in the mountainous region in Sichuan Province of China,which caused a large number of rapid landslides.The purpose of the paper is two-fold:(a)to propose and incorporate into the multi-block model constitutive relations predicting soil response along slip surfaces,and(b)to apply the multi-block model with the constitutive relations at landslides triggered by the Wenchuan earthquake.The proposed constitutive equations predict the shape of the shear stress-displacement response measured in ring shear tests.In the application,four landslides caused by the Wenchuan earthquake were considered.Only in one of these landslides the shear resistance-displacement response along the slip surface has been measured in laboratory tests.At this landslide,the triggering and movement of the landslide was predicted.In the other landslides,back analyses were performed and it was observed that the multi-block model predicted reasonably well the final configuration of all slides.In addition,as the measured and back-estimated total friction angle of all landslides was less than 180,and the materials along the slip surface were sandy,it is inferred that some,or all of the slip surface during these slides was sheared in an undrained manner and excess pore pressures generated during sliding played a key role in the triggering and movement of these landslides.Concluding,the paper(A)proposed and validated a multi-block constitutive model which can be applied to predict the triggering and movement of earthquake-induced slides and(B)by analyzing four landslides of the 2008 Wenchuan earthquake,it concludes that some,or all of the slip surface during these slides,was sheared in an undrained manner and excess pore pressures generated during sliding played a key role in the triggering and movement of these landslides.展开更多
文摘In recent years, the rapid innovation and development of financial industry has made financial enterprises have a lot of information. However, the large amount of information is tampered with and fragmented, which cannot be shared. With the constant innovation of science and technology, it is the most effective way to solve the information lag and asymmetry of financial products. This article aims to start from the problem of asymmetric information of financial products, the analysis of the emerging block chain technology applied in the financial sector, and with the development of asset securitization information known as the typical scenario for the first time, a concrete analysis information game process, and discuss about the application of chain blocks in securitization feasibility.
文摘目的探讨超声引导下双侧胸腰筋膜平面阻滞(TLIPB)对行经皮椎间孔镜腰椎间盘切除术(PTED)的椎间盘源性腰痛(DLBP)患者的围术期镇痛效果。方法选取57例椎间盘源性腰痛患者,使用计算机生成的随机编号将患者分为A组(对照组)28例患者,B组(超声引导下双侧胸腰筋膜平面阻滞组)29例患者。比较两组患者术前(t_(0))、术后2 h(t_(1))、术后6 h(t_(2))、术后12 h(t_(3))及术后24 h(t_(4))静息和翻身时视觉模拟疼痛评分(VAS)的差异。比较两组患者术前及术后24 h 15项恢复质量评分(QoR-15)的差异。比较两组患者入室后(T_(0))、切皮时(T_(1))、椎间孔成形时(T_(2))、外科医生认定疼痛最剧烈时(T_(3))、手术结束时(T_(4))的平均动脉压(MAP)和心率(HR)变化的差异。记录术中及术后24 h内不良事件。结果所有患者均顺利完成手术和超声引导下双侧TLIPB,无椎间隙感染,无脊髓、神经根和血管损伤,无恶心呕吐等严重并发症。两组患者组内术后各时间点静息及翻身时VAS评分及术后24 h QoR-15评分均较术前显著降低,差异有统计学意义(P<0.05)。两组患者术前及术后各时间点静息时VAS评分差异无统计学意义(P>0.05)。两组患者术后2 h、术后6 h及术后12 h翻身时VAS评分差异有统计学意义(P<0.05),其余时间点差异无统计学意义(P>0.05)。两组患者术前及术后24 h QoR-15评分相比差异有统计学意义(P<0.05),且两组患者术后24 h QoR-15评分相比差异有统计学意义(P<0.05)。两组患者椎间孔成形时(T_(2))和外科医生认定疼痛最剧烈时(T3)时MAP及HR差异有统计学意义(P<0.05)。结论超声引导下双侧胸腰筋膜平面阻滞可以有效缓解PTED术后疼痛,减少围术期应激反应及不良事件的发生,加速患者术后康复。
基金the Indian Institute of Technology Bombay’s Post-Doctoral Research Program, vide appointment no. AO/Admn1/33/2018 dated 10.Aug’2018 for providing funding
文摘With rapid advancements in Infra-Red (IR) detection techniques, the range from where the IR-guided missiles are able to lock the target aircraft has increased. To avoid the detection and tracking by modern IR-guided missiles, the aircraft and helicopters also demand progress in its stealth techniques. Hence, study of Infra-Red Signature Suppression (IRSS) systems in aircraft and helicopters has become vital even in design stage. Optical blocking (masking) is one of the effective IRSS techniques used to block the Line- Of-Sight (LOS) of the hot engine parts of the exhaust geometry. This paper reviews the various patents on IR signature suppression systems based on the optical blocking method or a combination of IRSS techniques. The performance penalties generated due to installation of various IRSS methods in aircraft and helicopters are also discussed.
文摘The aim of this retrospective practice audit was to assess the correlation between painful zygapophysial joints and changes seen in magnetic resonance imaging (MRI). Patients with unilateral pain were tested with controlled medial branch blocks. The MRI scans of patients with a positive response were compared blinded with normal MRI scans. The dimensions of the joint were assessed and osteoarthritis was graded. Fifteen symptomatic patients and 15 asymptomatic patients were included and evaluated. Comparison of the joints showed that the maximum diameter of symptomatic joints was significantly larger, and the grading of osteoarthritis was significantly higher for symptomatic joints. No healthy patient was assigned a grade 3. Grades 2 and 3 were found significantly more often in symptomatic patients. Only one symptomatic joint was assigned grade 0. Grade 0 was found significantly more often in asympto-matic patients. The presented MRI technique has limited value as a diagnostic test for lumbar zygapophysial joint pain. It is not possible to detect a single symptomatic joint. However, the osteoarthritis grading for the lumbar zyg-apophysial joints might be helpful for finding predictors for negative response if the results of the rating are grade zero. Therefore, unnecessary medial branch blocks might be avoided.
基金The National Key R＆D Program of China (2017YFC1502903) Sichuan International Cooperation and Exchange for Science and Technology (2016HH0079)+1 种基金 ＂Novel methodologies for the assessment of risk of ground displacement＂ under ESPA 2007-2013 of Greece under
文摘A multi-block model and a corresponding computer program have been developed which predict the kinematics of landslides.Furthermore,a unique event for studying different models simulating the triggering and movement of landslides is the 2008Wenchuan earthquake in the mountainous region in Sichuan Province of China,which caused a large number of rapid landslides.The purpose of the paper is two-fold:(a)to propose and incorporate into the multi-block model constitutive relations predicting soil response along slip surfaces,and(b)to apply the multi-block model with the constitutive relations at landslides triggered by the Wenchuan earthquake.The proposed constitutive equations predict the shape of the shear stress-displacement response measured in ring shear tests.In the application,four landslides caused by the Wenchuan earthquake were considered.Only in one of these landslides the shear resistance-displacement response along the slip surface has been measured in laboratory tests.At this landslide,the triggering and movement of the landslide was predicted.In the other landslides,back analyses were performed and it was observed that the multi-block model predicted reasonably well the final configuration of all slides.In addition,as the measured and back-estimated total friction angle of all landslides was less than 180,and the materials along the slip surface were sandy,it is inferred that some,or all of the slip surface during these slides was sheared in an undrained manner and excess pore pressures generated during sliding played a key role in the triggering and movement of these landslides.Concluding,the paper(A)proposed and validated a multi-block constitutive model which can be applied to predict the triggering and movement of earthquake-induced slides and(B)by analyzing four landslides of the 2008 Wenchuan earthquake,it concludes that some,or all of the slip surface during these slides,was sheared in an undrained manner and excess pore pressures generated during sliding played a key role in the triggering and movement of these landslides.
