目的:探讨海桐皮汤外用对Colles骨折腕关节功能的影响。方法:选取2016年6月至2017年6月广东省中西医结合医院收治的Colles骨折患者60例,随机分为对照组及观察组,每组30例。2组患者均接受手法复位及夹板外固定,依据患者恢复情况分别与5~...目的:探讨海桐皮汤外用对Colles骨折腕关节功能的影响。方法:选取2016年6月至2017年6月广东省中西医结合医院收治的Colles骨折患者60例,随机分为对照组及观察组,每组30例。2组患者均接受手法复位及夹板外固定,依据患者恢复情况分别与5~7周后拆除夹板并进行相应的功能锻炼,观察组在上述治疗基础上加用海桐皮外用,1 000 m L煎煮外用,1剂/d。分别于1、2、4周及3个月拍片复查患侧掌倾角、尺偏角及桡骨缩短的情况,3个月时比较患侧腕关节功能评分、临床总有效率以及骨代谢指标变化。结果:治疗3个月后观察组临床总有效率为95%,对照组总有效率为72%,2组比较差异有统计学意义(P<0.05);2组复位后及临床愈合后患者掌倾角、尺偏角及桡骨缩短程度与复位前比较,差异有统计学意义(P<0.05)。其中观察组改善较对照组明显(P<0.05);2组患者治疗后PRWE评分均较治疗前减少,差异有统计学意义(P<0.05),其中观察组下降的趋势较对照组明显,差异有统计学意义(P<0.05);2组患者治疗后外周血血钙(Ca)、血磷(P)、碱性磷酸酶(ALP)、骨钙素(BGP)、护骨因子(OPG)水平均有不同程度升高,其中观察组升高的趋势更明显(P<0.05)。结论:海桐皮汤外用可明显改善Colles骨折的临床症状,提高腕关节功能,其作用机制可能与改善患者骨代谢有关。展开更多
Thermochemical recuperation heat recovery is an advanced waste heat utilization technology that can effectively recover exhaust waste heat from oxy-fuel Stirling engines.The novel combustor of a Stirling engine with t...Thermochemical recuperation heat recovery is an advanced waste heat utilization technology that can effectively recover exhaust waste heat from oxy-fuel Stirling engines.The novel combustor of a Stirling engine with thermochemical recuperation heat recovery system is expected to utilize both reformed gas and diesel fuels as sources of combustion.In this research,the effects of various factors,including the H_(2)O addition,fuel distribution ratio(FDR),excess oxygen coefficient,and cyclone structure on the temperature distribution in the combustor,combustion emissions,and external combustion system efficiency of the Stirling engine were experimentally investigated.With the increase of steam-to-carbon ratio(S/C),the temperature difference between the upper and lower heating tubes reduces and the circumferential temperature fluctuation decreases,and the combustion of diesel and reformed gas remains close to complete combustion.At S/C=2,the external combustion efficiency is 80.6%,indicating a 1.6%decrease compared to conventional combustion.With the increase of FDR,the temperature uniformity of the heater tube is improved,and the CO and HC emissions decrease.However,the impact of the FDR on the maximum temperature difference and temperature fluctuation across the heater is insignificant.When the FDR rises from 21%to 38%,the external combustion efficiency increases from 87.4%to92.3%.The excess oxygen coefficient plays a secondary role in influencing temperature uniformity and temperature difference,and the reformed gas and diesel fuel can be burned efficiently at a low excess oxygen coefficient of 1.04.With an increase in the cyclone angle,the heater tube temperature increases,while the maximum temperature difference at the lower part decreases,and the temperature fluctuation increases.Simultaneously,the CO and HC emissions increase,and the external combustion efficiency experiences a decrease.A cyclone angle of 30°is found to be an appropriate value for achieving optimal mixing between reformed gas and diesel fuel.Th展开更多
Radical-based light-emitting diodes are an innovative type of organic light-emitting diodes(OLEDs),which adopt luminescent radicals as emitters,aiming at improving the external quantum efficiency(EQE)of OLEDs.Research...Radical-based light-emitting diodes are an innovative type of organic light-emitting diodes(OLEDs),which adopt luminescent radicals as emitters,aiming at improving the external quantum efficiency(EQE)of OLEDs.Research on luminescent radicals and the corresponding devices is a multidisciplinary field involving organic chemistry,solid-state physics,photochemistry,electronics,and others.The relevant theories have been established step-by-step in recent years.展开更多
文摘目的:探讨海桐皮汤外用对Colles骨折腕关节功能的影响。方法:选取2016年6月至2017年6月广东省中西医结合医院收治的Colles骨折患者60例,随机分为对照组及观察组,每组30例。2组患者均接受手法复位及夹板外固定,依据患者恢复情况分别与5~7周后拆除夹板并进行相应的功能锻炼,观察组在上述治疗基础上加用海桐皮外用,1 000 m L煎煮外用,1剂/d。分别于1、2、4周及3个月拍片复查患侧掌倾角、尺偏角及桡骨缩短的情况,3个月时比较患侧腕关节功能评分、临床总有效率以及骨代谢指标变化。结果:治疗3个月后观察组临床总有效率为95%,对照组总有效率为72%,2组比较差异有统计学意义(P<0.05);2组复位后及临床愈合后患者掌倾角、尺偏角及桡骨缩短程度与复位前比较,差异有统计学意义(P<0.05)。其中观察组改善较对照组明显(P<0.05);2组患者治疗后PRWE评分均较治疗前减少,差异有统计学意义(P<0.05),其中观察组下降的趋势较对照组明显,差异有统计学意义(P<0.05);2组患者治疗后外周血血钙(Ca)、血磷(P)、碱性磷酸酶(ALP)、骨钙素(BGP)、护骨因子(OPG)水平均有不同程度升高,其中观察组升高的趋势更明显(P<0.05)。结论:海桐皮汤外用可明显改善Colles骨折的临床症状,提高腕关节功能,其作用机制可能与改善患者骨代谢有关。
基金supported by the Ministry of Science and Technology of China(Grant No.2022YFE0209000)the Shanghai Rising-Star Program(Grant No.21QB1403900)Shanghai Municipal Commission of Science and Technology(Grant No.22170712600)。
文摘Thermochemical recuperation heat recovery is an advanced waste heat utilization technology that can effectively recover exhaust waste heat from oxy-fuel Stirling engines.The novel combustor of a Stirling engine with thermochemical recuperation heat recovery system is expected to utilize both reformed gas and diesel fuels as sources of combustion.In this research,the effects of various factors,including the H_(2)O addition,fuel distribution ratio(FDR),excess oxygen coefficient,and cyclone structure on the temperature distribution in the combustor,combustion emissions,and external combustion system efficiency of the Stirling engine were experimentally investigated.With the increase of steam-to-carbon ratio(S/C),the temperature difference between the upper and lower heating tubes reduces and the circumferential temperature fluctuation decreases,and the combustion of diesel and reformed gas remains close to complete combustion.At S/C=2,the external combustion efficiency is 80.6%,indicating a 1.6%decrease compared to conventional combustion.With the increase of FDR,the temperature uniformity of the heater tube is improved,and the CO and HC emissions decrease.However,the impact of the FDR on the maximum temperature difference and temperature fluctuation across the heater is insignificant.When the FDR rises from 21%to 38%,the external combustion efficiency increases from 87.4%to92.3%.The excess oxygen coefficient plays a secondary role in influencing temperature uniformity and temperature difference,and the reformed gas and diesel fuel can be burned efficiently at a low excess oxygen coefficient of 1.04.With an increase in the cyclone angle,the heater tube temperature increases,while the maximum temperature difference at the lower part decreases,and the temperature fluctuation increases.Simultaneously,the CO and HC emissions increase,and the external combustion efficiency experiences a decrease.A cyclone angle of 30°is found to be an appropriate value for achieving optimal mixing between reformed gas and diesel fuel.Th
基金support from the National Natural Science Foundation of China(grant nos.51925303,91833304,and 51673080)the program“JLUSTIRT”(grant no.2019TD-33).
文摘Radical-based light-emitting diodes are an innovative type of organic light-emitting diodes(OLEDs),which adopt luminescent radicals as emitters,aiming at improving the external quantum efficiency(EQE)of OLEDs.Research on luminescent radicals and the corresponding devices is a multidisciplinary field involving organic chemistry,solid-state physics,photochemistry,electronics,and others.The relevant theories have been established step-by-step in recent years.
