The mode-2 internal solitary waves(ISWs)generated by mode-2 internal tide(IT)are identified by mooring observations in the northern South China Sea(SCS)from 2016 to 2017.Two mode-2 ISWs with a re-appearance period of ...The mode-2 internal solitary waves(ISWs)generated by mode-2 internal tide(IT)are identified by mooring observations in the northern South China Sea(SCS)from 2016 to 2017.Two mode-2 ISWs with a re-appearance period of 24.9 h observed on 29 and 30 July 2016 are characterized by type-b ISWs.They occurred when the isotherms compressed obviously in the vertical direction.Modal decomposition of IT horizontal currents shows that the vertical compression of the isotherms is mainly caused by diurnal mode-2 IT.The analysis of the role of the density stratification reveals that a deeper and thinner pycnocline is favorable for generation of mode-2 ISWs rather than pycnocline intensity.By comparing the mode-2 nonlinear,dispersion coefficients and the Ursell numbers calculated based on the stratification associated with different kinds of ITs with the observation results,it is shown that the diurnal mode-2 IT plays a crucial role in the generation of the mode-2 ISWs.When the diurnal mode-2 IT interacts with the semidiurnal IT and causes a deeper and thinner pycnocline,the mode-2 ISWs are easily excited.展开更多
A series of experiments are designed to propose a new method to study the characteristics of convex mode-2internal solitary waves(ISWs)in optical remote sensing images using a laboratory-based optical remote sensing s...A series of experiments are designed to propose a new method to study the characteristics of convex mode-2internal solitary waves(ISWs)in optical remote sensing images using a laboratory-based optical remote sensing simulation platform.The corresponding wave parameters of large-amplitude convex mode-2 ISWs under smooth surfaces are investigated along with the optical remote sensing characteristic parameters.The mode-2 ISWs in the experimentally obtained optical remote sensing image are produced by their overall modulation effect on the water surface,and the extreme points of the gray value of the profile curve of bright-dark stripes appear at the same location as the real optical remote sensing image.The present data extend to a larger range than previous studies,and for the characteristics of large amplitude convex mode-2 ISWs,the experimental results show a second-order dependence of wavelength on amplitude.There is a close relationship between optical remote sensing characteristic parameters and wave parameters of mode-2 ISWs,in which there is a positive linear relationship between the bright-dark spacing and wavelength and a nonlinear relationship with the amplitude,especially when the amplitude is very large,there is a significant increase in bright-dark spacing.展开更多
目的探讨二甲双胍联合不同方式运动治疗2型糖尿病(T2DM)的临床疗效。方法选择2020年5月至2021年1月新乡市第一人民医院收治的90例T2DM患者为研究对象。根据治疗方案将患者分为对照组、观察组1和观察组2,每组30例。3组患者均给予二甲双...目的探讨二甲双胍联合不同方式运动治疗2型糖尿病(T2DM)的临床疗效。方法选择2020年5月至2021年1月新乡市第一人民医院收治的90例T2DM患者为研究对象。根据治疗方案将患者分为对照组、观察组1和观察组2,每组30例。3组患者均给予二甲双胍进行降糖治疗和个体化糖尿病食谱干预。在此基础上,对照组患者给予常规生活方式指导(糖尿病膳食指导及个体化运动方式指导,建议患者每周至少进行150 min中等强度运动),观察组1患者根据微信群督导信息进行每日2~3次餐后有氧或低强度抗阻运动或有氧加抗阻运动,观察组2患者根据微信群督导信息每日进行餐后1次有氧运动或有氧加低强度抗阻运动(弹力带联合快步走),共干预治疗6个月。分别于治疗前及治疗3、6个月时采集3组患者肘静脉血,分离血清,应用全自动生化分析仪检测3组患者空腹血糖(FBG)、餐后2 h血糖(2 h PG)、三酰甘油(TG)、总胆固醇(TCH)、高密度脂蛋白(HDL)、低密度脂蛋白(LDL)、同型半胱氨酸(HCY)水平;应用全自动特定蛋白即时分析仪检测3组患者糖化血红蛋白(HbA1c)水平;采用电化学发光免疫分析法检测3组患者血清25-羟基维生素D[25(OH)D]水平。结果治疗前3组患者的FBG、2 h PG、HbA1c、25(OH)D、TCH、TG、HDL、LDL、HCY水平比较差异均无统计学意义(P>0.05)。对照组患者各时间点的FBG、2hPG、TG、TCH、HDL、LDL、HCY与治疗前比较差异无统计学意义(P>0.05);对照组患者治疗3、6个月时HbA1c水平显著低于治疗前(P<0.05),25(OH)D水平显著高于治疗前(P<0.05);对照组患者治疗6个月时的HbA1c水平显著低于治疗3个月时(P<0.05)。观察组1和观察组2患者治疗3、6个月时的FBG、2 h PG、HbA1c、TCH、TG水平显著低于治疗前,25(OH)D、HDL水平显著高于治疗前(P<0.05);2组患者各时间点LDL、HCY水平比较差异均无统计学意义(P>0.05)。观察组1治疗6个月时的HbA1c水平显著低于治疗3个月时,25(OH)D水平显著高于治疗3个月时(P<0.01);观察组1患者治疗6个月时与治疗3个月时的FBG、2 h PG、TCH、TG、HDL水平比较差异无统计学意义(P>0.05)。观察组2患者治疗6个月时的FBG、HbA1c水平显著低于治疗3个月时,25(OH)D水平显著高于治疗3个月时(P<0.01);观察组2患者治疗6个月时与治疗3个月时的2 h PG、TCH、TG、HDL水平比较差异无统计学意义(P>0.05)。治疗3、6个月时,观察组1和观察组2患者的FBG、2 h PG、HbA1c水平显著低于对照组,25(OH)D水平显著高于对照组(P<0.05);观察组1与观察组2患者的FBG、2 h PG、HbA1c水平比较差异无统计学意义(P>0.05);观察组2患者的25(OH)D水平显著高于观察组1(P<0.05);观察组1患者的TCH水平显著低于对照组(P<0.05);观察组2与对照组患者的TCH水平比较差异无统计学意义(P>0.05);观察组2患者的TCH水平显著高于观察组1(P<0.05);3组患者的HDL、LDL、HCY水平比较差异无统计学意义(P>0.05)。治疗3个月时,3组患者的TG水平比较差异无统计学意义(P>0.05);治疗6个月时,观察组1和观察组2患者的TG水平与对照组比较差异无统计学意义(P>0.05);观察组2患者的TG水平显著高于观察组1(P<0.05)。结论在糖尿病饮食和降糖药物治疗的基础上,联合不同运动方式均可改善T2DM患者的血糖、HbA1c、血清25(OH)D等水平,通过微信群督导患者在餐后30~60 min采用不同方式在不同时段进行不同强度的运动的改善效果优于未进行督导的患者。展开更多
目的探讨医学生-病友参与式健康管理对合并2型糖尿病的脑梗死患者生活质量的影响。方法选取首次发作、美国国立卫生研究院卒中量表(National Institute of Health stroke scale,NIHSS)评分为1~4分且合并2型糖尿病的脑梗死患者随机分为...目的探讨医学生-病友参与式健康管理对合并2型糖尿病的脑梗死患者生活质量的影响。方法选取首次发作、美国国立卫生研究院卒中量表(National Institute of Health stroke scale,NIHSS)评分为1~4分且合并2型糖尿病的脑梗死患者随机分为对照组(49例)和研究组(47例),对照组行常规健康管理,研究组在此基础上,结合Learns模式,引入医学生和病友参与。对比管理前后2组患者血糖水平、生活质量、Barthel指数(Barthel Index,BI)等变化。采用Spearman相关性分析探讨SF-36评分与BI评分的相关性。结果干预前,2组FBG、2 h PG、HbA1c、BI评分比较差异无统计学意义(P>0.05);干预后,研究组FBG、2 h PG、HbA1c、BI评分均优于对照组(P<0.05)。研究组SF-36评分的8个维度评分均优于对照组(P<0.05)。Spearman相关性分析结果显示:干预后研究组精力、社会活动、情感职能与BI正相关(r分别为0.469、0.758、0.453,P<0.01)。结论医学生-病友参与式健康管理能够改善合并2型糖尿病的脑梗死患者的血糖水平、改善生活质量、日常生活活动能力;关注患者的精力、社会活动、情感职能有助于提高其生活质量。展开更多
基金The National Science and Technology Major Project under contract No.2016ZX05057015the National Natural Science Foundation of China(NSFC)under contract Nos 41376038+6 种基金4040600941806123 and 41506038the NSFC-Shandong Joint Fund for Marine Science Research Centers under contract No.U1606405the National Program on Global Change and Air-Sea Interaction under contract Nos GASI-03-01-01-02GASI-02-IND-STSsum and GASI-IPOVAI-01-05the Public Science and Technology Research Funds Projects of Ocean under contract No.200905024the National Key Scientific Instrument and Equipment Development Projects under contract No.2012YQ12003908。
文摘The mode-2 internal solitary waves(ISWs)generated by mode-2 internal tide(IT)are identified by mooring observations in the northern South China Sea(SCS)from 2016 to 2017.Two mode-2 ISWs with a re-appearance period of 24.9 h observed on 29 and 30 July 2016 are characterized by type-b ISWs.They occurred when the isotherms compressed obviously in the vertical direction.Modal decomposition of IT horizontal currents shows that the vertical compression of the isotherms is mainly caused by diurnal mode-2 IT.The analysis of the role of the density stratification reveals that a deeper and thinner pycnocline is favorable for generation of mode-2 ISWs rather than pycnocline intensity.By comparing the mode-2 nonlinear,dispersion coefficients and the Ursell numbers calculated based on the stratification associated with different kinds of ITs with the observation results,it is shown that the diurnal mode-2 IT plays a crucial role in the generation of the mode-2 ISWs.When the diurnal mode-2 IT interacts with the semidiurnal IT and causes a deeper and thinner pycnocline,the mode-2 ISWs are easily excited.
基金The National Natural Science Foundation of China under contract No.61871353。
文摘A series of experiments are designed to propose a new method to study the characteristics of convex mode-2internal solitary waves(ISWs)in optical remote sensing images using a laboratory-based optical remote sensing simulation platform.The corresponding wave parameters of large-amplitude convex mode-2 ISWs under smooth surfaces are investigated along with the optical remote sensing characteristic parameters.The mode-2 ISWs in the experimentally obtained optical remote sensing image are produced by their overall modulation effect on the water surface,and the extreme points of the gray value of the profile curve of bright-dark stripes appear at the same location as the real optical remote sensing image.The present data extend to a larger range than previous studies,and for the characteristics of large amplitude convex mode-2 ISWs,the experimental results show a second-order dependence of wavelength on amplitude.There is a close relationship between optical remote sensing characteristic parameters and wave parameters of mode-2 ISWs,in which there is a positive linear relationship between the bright-dark spacing and wavelength and a nonlinear relationship with the amplitude,especially when the amplitude is very large,there is a significant increase in bright-dark spacing.
文摘目的探讨二甲双胍联合不同方式运动治疗2型糖尿病(T2DM)的临床疗效。方法选择2020年5月至2021年1月新乡市第一人民医院收治的90例T2DM患者为研究对象。根据治疗方案将患者分为对照组、观察组1和观察组2,每组30例。3组患者均给予二甲双胍进行降糖治疗和个体化糖尿病食谱干预。在此基础上,对照组患者给予常规生活方式指导(糖尿病膳食指导及个体化运动方式指导,建议患者每周至少进行150 min中等强度运动),观察组1患者根据微信群督导信息进行每日2~3次餐后有氧或低强度抗阻运动或有氧加抗阻运动,观察组2患者根据微信群督导信息每日进行餐后1次有氧运动或有氧加低强度抗阻运动(弹力带联合快步走),共干预治疗6个月。分别于治疗前及治疗3、6个月时采集3组患者肘静脉血,分离血清,应用全自动生化分析仪检测3组患者空腹血糖(FBG)、餐后2 h血糖(2 h PG)、三酰甘油(TG)、总胆固醇(TCH)、高密度脂蛋白(HDL)、低密度脂蛋白(LDL)、同型半胱氨酸(HCY)水平;应用全自动特定蛋白即时分析仪检测3组患者糖化血红蛋白(HbA1c)水平;采用电化学发光免疫分析法检测3组患者血清25-羟基维生素D[25(OH)D]水平。结果治疗前3组患者的FBG、2 h PG、HbA1c、25(OH)D、TCH、TG、HDL、LDL、HCY水平比较差异均无统计学意义(P>0.05)。对照组患者各时间点的FBG、2hPG、TG、TCH、HDL、LDL、HCY与治疗前比较差异无统计学意义(P>0.05);对照组患者治疗3、6个月时HbA1c水平显著低于治疗前(P<0.05),25(OH)D水平显著高于治疗前(P<0.05);对照组患者治疗6个月时的HbA1c水平显著低于治疗3个月时(P<0.05)。观察组1和观察组2患者治疗3、6个月时的FBG、2 h PG、HbA1c、TCH、TG水平显著低于治疗前,25(OH)D、HDL水平显著高于治疗前(P<0.05);2组患者各时间点LDL、HCY水平比较差异均无统计学意义(P>0.05)。观察组1治疗6个月时的HbA1c水平显著低于治疗3个月时,25(OH)D水平显著高于治疗3个月时(P<0.01);观察组1患者治疗6个月时与治疗3个月时的FBG、2 h PG、TCH、TG、HDL水平比较差异无统计学意义(P>0.05)。观察组2患者治疗6个月时的FBG、HbA1c水平显著低于治疗3个月时,25(OH)D水平显著高于治疗3个月时(P<0.01);观察组2患者治疗6个月时与治疗3个月时的2 h PG、TCH、TG、HDL水平比较差异无统计学意义(P>0.05)。治疗3、6个月时,观察组1和观察组2患者的FBG、2 h PG、HbA1c水平显著低于对照组,25(OH)D水平显著高于对照组(P<0.05);观察组1与观察组2患者的FBG、2 h PG、HbA1c水平比较差异无统计学意义(P>0.05);观察组2患者的25(OH)D水平显著高于观察组1(P<0.05);观察组1患者的TCH水平显著低于对照组(P<0.05);观察组2与对照组患者的TCH水平比较差异无统计学意义(P>0.05);观察组2患者的TCH水平显著高于观察组1(P<0.05);3组患者的HDL、LDL、HCY水平比较差异无统计学意义(P>0.05)。治疗3个月时,3组患者的TG水平比较差异无统计学意义(P>0.05);治疗6个月时,观察组1和观察组2患者的TG水平与对照组比较差异无统计学意义(P>0.05);观察组2患者的TG水平显著高于观察组1(P<0.05)。结论在糖尿病饮食和降糖药物治疗的基础上,联合不同运动方式均可改善T2DM患者的血糖、HbA1c、血清25(OH)D等水平,通过微信群督导患者在餐后30~60 min采用不同方式在不同时段进行不同强度的运动的改善效果优于未进行督导的患者。
文摘目的探讨医学生-病友参与式健康管理对合并2型糖尿病的脑梗死患者生活质量的影响。方法选取首次发作、美国国立卫生研究院卒中量表(National Institute of Health stroke scale,NIHSS)评分为1~4分且合并2型糖尿病的脑梗死患者随机分为对照组(49例)和研究组(47例),对照组行常规健康管理,研究组在此基础上,结合Learns模式,引入医学生和病友参与。对比管理前后2组患者血糖水平、生活质量、Barthel指数(Barthel Index,BI)等变化。采用Spearman相关性分析探讨SF-36评分与BI评分的相关性。结果干预前,2组FBG、2 h PG、HbA1c、BI评分比较差异无统计学意义(P>0.05);干预后,研究组FBG、2 h PG、HbA1c、BI评分均优于对照组(P<0.05)。研究组SF-36评分的8个维度评分均优于对照组(P<0.05)。Spearman相关性分析结果显示:干预后研究组精力、社会活动、情感职能与BI正相关(r分别为0.469、0.758、0.453,P<0.01)。结论医学生-病友参与式健康管理能够改善合并2型糖尿病的脑梗死患者的血糖水平、改善生活质量、日常生活活动能力;关注患者的精力、社会活动、情感职能有助于提高其生活质量。
