The dynamic performance and wake structure of flapping plates with different shapes were studied using multi-block lattice Boltzman and immersed boundary method.Two typical regimes relevant to thrust behavior are iden...The dynamic performance and wake structure of flapping plates with different shapes were studied using multi-block lattice Boltzman and immersed boundary method.Two typical regimes relevant to thrust behavior are identified.One is nonlinear relation between the thrust and the area moment of plate for lower area moment region and the other is linear relation for larger area moment region.The tendency of the power variation with the area moment is reasonably similar to the thrust behavior and the efficiency decreases gradually as the area moment increases.As the mechanism of the dynamic properties is associated with the evolution of vortical structures around the plate,the formation and evolution of vortical structures are investigated and the effects of the plate shape,plate area,Strouhal number and Reynolds number on the vortical structures are analyzed.The results obtained in this study provide physical insight into the understanding of the mechanisms relevant to flapping locomotion.展开更多
Background The columella, nasal tip, lip relationship in the bilateral cleft lip nasal deformity remains a great challenge for plastic surgeon. An esthetically satisfying result is difficult to obtain. A subset of pat...Background The columella, nasal tip, lip relationship in the bilateral cleft lip nasal deformity remains a great challenge for plastic surgeon. An esthetically satisfying result is difficult to obtain. A subset of patients with bilateral cleft lip nasal deformity still require columellar lengthening and nasal correction and philtrial construction. This study aimed to provide a new method based on the forked flap to improve the final appearance of these patients. Methods A technique to correct this deformity is described. This consists of （1） a newly modified forked flap including the orbicularis oris muscle and nasalis muscle along the whole flap for columellar lengthening, （2） a reverse V shaped flap from the lower portion of the columella and the prolabium for normal size phitrum construction, （3） inserting the vermilion portion of the forked flap and advancing the nasal floor medially and anteriorly to lengthen and maintain the nasal septum side of the columella for proper tip positioning, （4） open rhinoplasty, allowing definitive repositioning of the lower lateral cartilages, （5） reconstruction of the orbicularis orismuscle as required, and （6） the flaring nostril floor advancing medially and constructing the sill. Results This technique was applied to 15 cases of secondary bilateral cleft lip nasal deformity. All the flaps took without signs of partial necrosis. In all cases, the nasal tip was projected forward with adequate columella elongation, and the height of the prolabium was added with normal size philtrial dimensions. Conclusions This method makes maximum use of the tissue containing the scar in the lip and limits tissues in the lower portion of the columella and the prolabium for adequate columella elongation and reconstruction with normal size philtrial dimensions. It is a very reasonable and useful method in correction of secondary bilateral cleft lip nasal deformities.展开更多
目的探讨皮下组织蒂菱形皮瓣成形术治疗烧伤后瘢痕挛缩的效果。方法选取2019年10月至2022年10月莆田市第一医院烧伤整形科收治的烧伤后瘢痕挛缩患者共100例,按治疗方式不同分成研究组(50例)与对照组(50例),对照组采用游离皮片移植术,研...目的探讨皮下组织蒂菱形皮瓣成形术治疗烧伤后瘢痕挛缩的效果。方法选取2019年10月至2022年10月莆田市第一医院烧伤整形科收治的烧伤后瘢痕挛缩患者共100例,按治疗方式不同分成研究组(50例)与对照组(50例),对照组采用游离皮片移植术,研究组采用皮下组织蒂菱形皮瓣成形术,统计两组术后1年皮瓣成活率、瘢痕挛缩复发率,比较两组生活质量[生活质量综合评定问卷(Generic Quality of Life Inventory-74,GQOLI-74)]、并发症。结果术后1年,研究组(100.00%)皮瓣成活率与对照组(92.00%)比较差异有统计学意义(P<0.05),研究组(4.00%)瘢痕挛缩复发率较对照组(18.00%)更低(P<0.05);两组术后1年GQOLI-74评分升高(P<0.05),研究组较对照组更高(P<0.05);研究组(4.00%)并发症发生率较对照组(24.00%)更低(P<0.05)。结论皮下组织蒂菱形皮瓣成形术治疗烧伤后瘢痕挛缩皮瓣成活率较高,可降低瘢痕挛缩复发率、生活质量提高,降低并发症发生风险。展开更多
目的:探讨皮瓣综合护理对手部软组织缺损术后功能恢复及外观满意度的影响。方法:选取2019年8月-2023年8月在笔者医院行手部皮瓣移植术的患者96例作为研究对象,按照随机数表法分为观察组和对照组,各48例。对照组采用常规护理干预,观察组...目的:探讨皮瓣综合护理对手部软组织缺损术后功能恢复及外观满意度的影响。方法:选取2019年8月-2023年8月在笔者医院行手部皮瓣移植术的患者96例作为研究对象,按照随机数表法分为观察组和对照组,各48例。对照组采用常规护理干预,观察组在对照组的基础上采用皮瓣综合护理干预,比较两组手部功能恢复[采用总主动活动度(Total active motion,TAM)系统评价]、术后并发症、日常生活能力[采用Barthel指数评定量表(Barthel index,BI)评估]和外形满意度。结果:干预2周后,观察组TAM优良率高于对照组,术后并发症总发生率低于对照组,BI评分高于对照组,患者对皮瓣外形的满意度评分高于对照组,差异均有统计学意义(P<0.05)。结论:皮瓣综合护理可有效加快手部软组织缺损术后功能快速恢复,减少并发症发生,提高日常生活能力和外形满意度。展开更多
目的探讨菱形皮瓣成形术在烧伤后瘢痕挛缩中的应用效果。方法选取2018年10月至2023年10月徐州医科大学附属淮海医院收治的98例烧伤后瘢痕挛缩患者进行回顾性分析,所有患者均采取皮瓣修复治疗,游离皮瓣组49例患者采取常规游离皮瓣移植术...目的探讨菱形皮瓣成形术在烧伤后瘢痕挛缩中的应用效果。方法选取2018年10月至2023年10月徐州医科大学附属淮海医院收治的98例烧伤后瘢痕挛缩患者进行回顾性分析,所有患者均采取皮瓣修复治疗,游离皮瓣组49例患者采取常规游离皮瓣移植术,菱形皮瓣组49例患者采取菱形皮瓣成形术。术后分别于6个月、1年对患者进行门诊复查随访,对比其皮瓣成活率与瘢痕复发率,受区瘢痕情况,并发症发生率及满意度,生活质量水平。结果菱形皮瓣组皮瓣成活率高于游离皮瓣组,瘢痕复发率低于游离皮瓣组(P<0.05);术后6个月、1年两组患者VSS评分均降低,菱形皮瓣组低于游离皮瓣组(P<0.05);菱形皮瓣组术后并发症发生率低于游离皮瓣组,满意度高于游离皮瓣组(P<0.05);术后6个月、1年两组患者36项健康调查简表(summary table of 36 health surveys,SF-36)评分均升高,菱形皮瓣组高于游离皮瓣组(P<0.05)。结论与常规游离皮瓣移植术相比,对烧伤后瘢痕挛缩患者采取菱形皮瓣成形术可提升皮瓣存活率,降低瘢痕复发率,改善受区瘢痕情况,同时可降低患者术后并发症发生率,提升患者满意度,改善其生活质量。展开更多
基金supported by the National Natural Science Foundation of China(11372304 and 11132010)the 111 Project(B07033)
文摘The dynamic performance and wake structure of flapping plates with different shapes were studied using multi-block lattice Boltzman and immersed boundary method.Two typical regimes relevant to thrust behavior are identified.One is nonlinear relation between the thrust and the area moment of plate for lower area moment region and the other is linear relation for larger area moment region.The tendency of the power variation with the area moment is reasonably similar to the thrust behavior and the efficiency decreases gradually as the area moment increases.As the mechanism of the dynamic properties is associated with the evolution of vortical structures around the plate,the formation and evolution of vortical structures are investigated and the effects of the plate shape,plate area,Strouhal number and Reynolds number on the vortical structures are analyzed.The results obtained in this study provide physical insight into the understanding of the mechanisms relevant to flapping locomotion.
文摘Background The columella, nasal tip, lip relationship in the bilateral cleft lip nasal deformity remains a great challenge for plastic surgeon. An esthetically satisfying result is difficult to obtain. A subset of patients with bilateral cleft lip nasal deformity still require columellar lengthening and nasal correction and philtrial construction. This study aimed to provide a new method based on the forked flap to improve the final appearance of these patients. Methods A technique to correct this deformity is described. This consists of （1） a newly modified forked flap including the orbicularis oris muscle and nasalis muscle along the whole flap for columellar lengthening, （2） a reverse V shaped flap from the lower portion of the columella and the prolabium for normal size phitrum construction, （3） inserting the vermilion portion of the forked flap and advancing the nasal floor medially and anteriorly to lengthen and maintain the nasal septum side of the columella for proper tip positioning, （4） open rhinoplasty, allowing definitive repositioning of the lower lateral cartilages, （5） reconstruction of the orbicularis orismuscle as required, and （6） the flaring nostril floor advancing medially and constructing the sill. Results This technique was applied to 15 cases of secondary bilateral cleft lip nasal deformity. All the flaps took without signs of partial necrosis. In all cases, the nasal tip was projected forward with adequate columella elongation, and the height of the prolabium was added with normal size philtrial dimensions. Conclusions This method makes maximum use of the tissue containing the scar in the lip and limits tissues in the lower portion of the columella and the prolabium for adequate columella elongation and reconstruction with normal size philtrial dimensions. It is a very reasonable and useful method in correction of secondary bilateral cleft lip nasal deformities.
文摘目的探讨皮下组织蒂菱形皮瓣成形术治疗烧伤后瘢痕挛缩的效果。方法选取2019年10月至2022年10月莆田市第一医院烧伤整形科收治的烧伤后瘢痕挛缩患者共100例,按治疗方式不同分成研究组(50例)与对照组(50例),对照组采用游离皮片移植术,研究组采用皮下组织蒂菱形皮瓣成形术,统计两组术后1年皮瓣成活率、瘢痕挛缩复发率,比较两组生活质量[生活质量综合评定问卷(Generic Quality of Life Inventory-74,GQOLI-74)]、并发症。结果术后1年,研究组(100.00%)皮瓣成活率与对照组(92.00%)比较差异有统计学意义(P<0.05),研究组(4.00%)瘢痕挛缩复发率较对照组(18.00%)更低(P<0.05);两组术后1年GQOLI-74评分升高(P<0.05),研究组较对照组更高(P<0.05);研究组(4.00%)并发症发生率较对照组(24.00%)更低(P<0.05)。结论皮下组织蒂菱形皮瓣成形术治疗烧伤后瘢痕挛缩皮瓣成活率较高,可降低瘢痕挛缩复发率、生活质量提高,降低并发症发生风险。
文摘目的:探讨皮瓣综合护理对手部软组织缺损术后功能恢复及外观满意度的影响。方法:选取2019年8月-2023年8月在笔者医院行手部皮瓣移植术的患者96例作为研究对象,按照随机数表法分为观察组和对照组,各48例。对照组采用常规护理干预,观察组在对照组的基础上采用皮瓣综合护理干预,比较两组手部功能恢复[采用总主动活动度(Total active motion,TAM)系统评价]、术后并发症、日常生活能力[采用Barthel指数评定量表(Barthel index,BI)评估]和外形满意度。结果:干预2周后,观察组TAM优良率高于对照组,术后并发症总发生率低于对照组,BI评分高于对照组,患者对皮瓣外形的满意度评分高于对照组,差异均有统计学意义(P<0.05)。结论:皮瓣综合护理可有效加快手部软组织缺损术后功能快速恢复,减少并发症发生,提高日常生活能力和外形满意度。
文摘目的探讨菱形皮瓣成形术在烧伤后瘢痕挛缩中的应用效果。方法选取2018年10月至2023年10月徐州医科大学附属淮海医院收治的98例烧伤后瘢痕挛缩患者进行回顾性分析,所有患者均采取皮瓣修复治疗,游离皮瓣组49例患者采取常规游离皮瓣移植术,菱形皮瓣组49例患者采取菱形皮瓣成形术。术后分别于6个月、1年对患者进行门诊复查随访,对比其皮瓣成活率与瘢痕复发率,受区瘢痕情况,并发症发生率及满意度,生活质量水平。结果菱形皮瓣组皮瓣成活率高于游离皮瓣组,瘢痕复发率低于游离皮瓣组(P<0.05);术后6个月、1年两组患者VSS评分均降低,菱形皮瓣组低于游离皮瓣组(P<0.05);菱形皮瓣组术后并发症发生率低于游离皮瓣组,满意度高于游离皮瓣组(P<0.05);术后6个月、1年两组患者36项健康调查简表(summary table of 36 health surveys,SF-36)评分均升高,菱形皮瓣组高于游离皮瓣组(P<0.05)。结论与常规游离皮瓣移植术相比,对烧伤后瘢痕挛缩患者采取菱形皮瓣成形术可提升皮瓣存活率,降低瘢痕复发率,改善受区瘢痕情况,同时可降低患者术后并发症发生率,提升患者满意度,改善其生活质量。
