目的：研究改良前臂骨间背侧皮瓣切取法修复手外伤皮瓣的临床效果。方法选取2014年4月至2015年10月来我院就诊的手外伤患者31例，采用以骨间后动脉为蒂的改良前臂骨间背侧皮瓣切取法修复手部外伤，观察治疗后皮瓣成活及创面愈合情况。...目的：研究改良前臂骨间背侧皮瓣切取法修复手外伤皮瓣的临床效果。方法选取2014年4月至2015年10月来我院就诊的手外伤患者31例，采用以骨间后动脉为蒂的改良前臂骨间背侧皮瓣切取法修复手部外伤，观察治疗后皮瓣成活及创面愈合情况。结果（1）术后7 d 2例腕掌侧皮肤缺损患者皮瓣远端坏死，经二期植皮后愈合；其他皮瓣术后均一期成活，创面均一期愈合良好，但供区创面植皮部分有1例坏死，经换药治疗后愈合；（2）经3～16个月随访，有4例皮瓣外形出现臃肿，随后进行皮瓣修整治疗；其余皮瓣外形恢复良好，两点辨别感觉为5～8 mm；（3）根据1994年赵书强等改进的中华医学会手外科学会上肢部分功能评定试用标准评定：优29例，良2例。所有患者手外伤肤色、外形及感知功能恢复满意。结论改良前臂骨间背侧皮瓣切取法操作简单，且皮瓣成活情况及创面愈合情况较好，同时还能修复患者手部感知功能，是一种功能性修复方案，值得在临床上大力推广。展开更多
Noise,vibration and harshness(NVH)problems in vehicle engineering are always challenging in both traditional vehicles and intelligent vehicles.Although high accuracy manufacturing,modern structural roads and advanced ...Noise,vibration and harshness(NVH)problems in vehicle engineering are always challenging in both traditional vehicles and intelligent vehicles.Although high accuracy manufacturing,modern structural roads and advanced suspension technology have already significantly reduced NVH problems and their impacts;off-road condition,obstacles and extreme operating condition could still trigger NVH problems unexpectedly.This paper proposes a vehicular electronic image stabilization(EIS)system to solve the vibration problem of the camera and ensure the environment perceptive function of vehicles.Firstly,feature point detection and matching based on an oriented FAST and rotated BRIEF(ORB)algorithm are implemented to match images in the process of EIS.Furthermore,a novel improved random sampling consensus algorithm(i-RANSAC)is proposed to eliminate mismatched feature points and increase the matching accuracy significantly.And an adaptive Kalman filter(AKF)is applied to improve the adaptability of the vehicular EIS.Finally,an experimental platform based on a gasoline model car was established to validate its performance.The experimental results show that the proposed EIS system can satisfy vehicular performance requirements even under off-road condition with obvious obstacles.展开更多
基金十堰市科学技术研究与开发项目(14y22)Fund programScience and Technology Research and Development Project of Shiyan
文摘目的：研究改良前臂骨间背侧皮瓣切取法修复手外伤皮瓣的临床效果。方法选取2014年4月至2015年10月来我院就诊的手外伤患者31例，采用以骨间后动脉为蒂的改良前臂骨间背侧皮瓣切取法修复手部外伤，观察治疗后皮瓣成活及创面愈合情况。结果（1）术后7 d 2例腕掌侧皮肤缺损患者皮瓣远端坏死，经二期植皮后愈合；其他皮瓣术后均一期成活，创面均一期愈合良好，但供区创面植皮部分有1例坏死，经换药治疗后愈合；（2）经3～16个月随访，有4例皮瓣外形出现臃肿，随后进行皮瓣修整治疗；其余皮瓣外形恢复良好，两点辨别感觉为5～8 mm；（3）根据1994年赵书强等改进的中华医学会手外科学会上肢部分功能评定试用标准评定：优29例，良2例。所有患者手外伤肤色、外形及感知功能恢复满意。结论改良前臂骨间背侧皮瓣切取法操作简单，且皮瓣成活情况及创面愈合情况较好，同时还能修复患者手部感知功能，是一种功能性修复方案，值得在临床上大力推广。
基金National Natural Science Foundation of China(Grant Nos.52072072,52025121 and 51605087).
文摘Noise,vibration and harshness(NVH)problems in vehicle engineering are always challenging in both traditional vehicles and intelligent vehicles.Although high accuracy manufacturing,modern structural roads and advanced suspension technology have already significantly reduced NVH problems and their impacts;off-road condition,obstacles and extreme operating condition could still trigger NVH problems unexpectedly.This paper proposes a vehicular electronic image stabilization(EIS)system to solve the vibration problem of the camera and ensure the environment perceptive function of vehicles.Firstly,feature point detection and matching based on an oriented FAST and rotated BRIEF(ORB)algorithm are implemented to match images in the process of EIS.Furthermore,a novel improved random sampling consensus algorithm(i-RANSAC)is proposed to eliminate mismatched feature points and increase the matching accuracy significantly.And an adaptive Kalman filter(AKF)is applied to improve the adaptability of the vehicular EIS.Finally,an experimental platform based on a gasoline model car was established to validate its performance.The experimental results show that the proposed EIS system can satisfy vehicular performance requirements even under off-road condition with obvious obstacles.
