设计主动式地理信息服务质量(quality of active geospatial information service,QoAGIS)评估系统,阐述主动式地理信息服务的内涵及其逻辑结构,提出AGIS质量评估指标的概念,并对其中的本征质量指标与广义质量指标的定量化实现进行研究...设计主动式地理信息服务质量(quality of active geospatial information service,QoAGIS)评估系统,阐述主动式地理信息服务的内涵及其逻辑结构,提出AGIS质量评估指标的概念,并对其中的本征质量指标与广义质量指标的定量化实现进行研究,给出综合评估指标。最后,通过实验表明QoAGIS评估系统的适应性和可靠性。展开更多
Advanced driver-assistance systems such as Honda’s collision mitigation brake system(CMBS)can help achieve traffic safety.In this paper,the naturalistic driving study and a series of simulations are combined to bette...Advanced driver-assistance systems such as Honda’s collision mitigation brake system(CMBS)can help achieve traffic safety.In this paper,the naturalistic driving study and a series of simulations are combined to better evaluate the performance of the CMBS in the Chinese traffic environment.First,because safety-critical situations can be diverse especially in the Chinese environment,the Chinese traffic-accident characteristics are analyzed according to accident statistics over the past 17 years.Next,10 Chinese traffic-accident scenarios accounting for more than 80%of traffic accidents are selected.For each typical scenario,353 representative cases are collected from the traffic-management department of Beijing.These real-world accident cases are then reconstructed by the traffic-accident-reconstruction software PC-Crash on the basis of accident-scene diagrams.This study also proposes a systematic analytical process for estimating the effectiveness of the technology using the co-simulation platform of PC-Crash and rateEFFECT,in which 176 simulations are analyzed in detail to assess the accident-avoidance performance of the CMBS.The overall collision-avoidance effectiveness reaches 82.4%,showing that the proposed approach is efficient for avoiding collisions,thereby enhancing traffic safety and improving traffic management.展开更多
目的:功能性踝关节不稳表现为本体感觉异常、神经肌肉控制能力下降以及反复性踝扭伤,严重影响其日常活动。本体感觉作为功能性踝关节不稳的重要方面,与对侧肢体和健康人群相比是否存在本体感觉的缺陷尚不明晰。因此,文章旨在分析功能性...目的:功能性踝关节不稳表现为本体感觉异常、神经肌肉控制能力下降以及反复性踝扭伤,严重影响其日常活动。本体感觉作为功能性踝关节不稳的重要方面,与对侧肢体和健康人群相比是否存在本体感觉的缺陷尚不明晰。因此,文章旨在分析功能性踝关节不稳的本体感觉特征。方法:计算机检索PubMed,Web of Science,EBSCO-host,Ovid,EMbase和中国知网数据库,搜索有关功能性踝关节不稳本体感觉特征的观察性研究,暴露因素为运动觉、关节位置觉、力觉中至少一项本体感觉缺陷,检索时限为各数据库建库至2022年2月。由2名研究者根据纳入与排除标准独立筛选文献并根据纽卡斯尔-渥太华量表与美国医疗保健研究和质量机构制定的横断面研究质量评价表评价纳入研究的质量,提取有关运动觉、关节位置觉、力觉与设定目标的绝对误差,使用RevMan 5.3软件进行Meta分析。结果:共纳入26项观察性研究,其中4项队列研究,6项病例-对照研究,16项横断面研究,均为中等以上质量文献。Meta分析结果显示:单侧功能性踝关节不稳患者相比于对侧肢体和健康人群存在内翻运动觉缺陷(SMD=0.53,95%CI:0.36-0.71,P<0.00001);单侧功能性踝关节不稳患者相比于对侧肢体存在内翻关节位置觉(主动与被动复制)的缺陷(SMD=1.60,95%CI:0.77-2.43,P=0.0002);单侧功能性踝关节不稳患者相比于健康人群存在内翻关节位置觉(主动与被动复制)的缺陷(SMD=0.66,95%CI:0.25-1.07,P=0.002);单侧功能性踝关节不稳患者相比于健康人群存在主动外翻关节位置觉缺陷(SMD=3.68,95%CI:1.85-5.52,P<0.0001);单侧功能性踝关节不稳患者相比于健康人群存在被动外翻关节位置觉缺陷(SMD=-0.61,95%CI:-1.19至-0.02,P=0.04);单侧功能性踝关节不稳患者与健康人群在跖屈关节位置觉(主动与被动复制)方面无显著性差异(SMD=0.80,95%CI:-0.19-1.79,P=0.11);单侧功能性踝关节不稳患者与健康人群在背屈关节位置觉(主动与被动复制)方面无显著性差异(SMD=0.86,95%CI:-0.01-1.74,P=0.05);单侧功能性踝关节不稳患者相比于健康人群存在冠状面运动的力觉缺陷(SMD=1.35,95%CI:0.85-1.85,P<0.00001),并且亚组分析显示,单侧功能性踝关节不稳患者相比于健康人群,外翻力觉误差大于与内翻力觉误差(P=0.44)。结论:单侧功能性踝关节不稳患者与对侧肢体相比存在内翻运动觉缺陷,而与健康人群相比存在内翻运动觉、主被动内翻关节位置觉、主动外翻关节位置觉、内翻和外翻的力觉缺陷。展开更多
目的利用大样本的真实世界数据,分析头孢哌酮钠/舒巴坦钠相关严重过敏反应发生情况及其影响因素。方法借助"医疗机构药品不良事件(adverse drug events,ADE)主动监测与智能评估警示系统"(ADE-ASAS)回顾性自动监测解放军总医院...目的利用大样本的真实世界数据,分析头孢哌酮钠/舒巴坦钠相关严重过敏反应发生情况及其影响因素。方法借助"医疗机构药品不良事件(adverse drug events,ADE)主动监测与智能评估警示系统"(ADE-ASAS)回顾性自动监测解放军总医院2013年7月至2018年6月使用注射用头孢哌酮钠/舒巴坦钠的住院患者,双人评价系统报警病例,获得头孢哌酮钠/舒巴坦钠相关严重过敏反应的发生率与特征,并进行影响因素分析。结果 31 684例次用药患者发生严重过敏反应28例,发生率为0.88‰。多因素Logistic回归分析显示,过敏史(OR=4.861,95%CI:1.88312.546)、风湿免疫疾病(OR=4.611,95%CI:1.75312.127)为头孢哌酮钠/舒巴坦钠致严重过敏反应的影响因素。结论头孢哌酮钠/舒巴坦钠相关严重过敏反应发生率属罕见范围。详询患者过敏史、既往史有助于降低临床用药风险。展开更多
The information on the force of extraocular muscles(EOMs)is beneficial for strabismus diagnosis and surgical planning,and a direct and simple method is important for surgeons to obtain these forces.Based on the tradit...The information on the force of extraocular muscles(EOMs)is beneficial for strabismus diagnosis and surgical planning,and a direct and simple method is important for surgeons to obtain these forces.Based on the traditional model,a numerical simulation method was proposed to achieve this aim,and then the active force of the lateral rectus(LR)muscle was successfully simulated when the eye rotated every angle from 0°to 30°in the horizontal plane from the nasal to the temporal side.In order to verify these simulations,the results were compared with the previous experimental data.The comparison shows that the simulation results diverged much more than the experimental data in the range of 0°–10°.The errors were corrected to make the simulation results closer to the experimental data.Finally,a general empirical equation was proposed to evaluate the active force of the LR muscle by fitting these data,which represent the relationship between the simulation forces and the contractive amounts of the LR muscle.展开更多
文摘设计主动式地理信息服务质量(quality of active geospatial information service,QoAGIS)评估系统,阐述主动式地理信息服务的内涵及其逻辑结构,提出AGIS质量评估指标的概念,并对其中的本征质量指标与广义质量指标的定量化实现进行研究,给出综合评估指标。最后,通过实验表明QoAGIS评估系统的适应性和可靠性。
基金Project(51625503) supported by the National Science Fund for Distinguished Young Scholars,ChinaProject(61790561) supported by the National Natural Science Foundation of China+1 种基金Project(20163000124) supported by Tsinghua-Honda Joint Research,ChinaProject(TTS2017-02) supported by the Open Fund for Jiangsu Key Laboratory of Traffic and Transportation Security,China
文摘Advanced driver-assistance systems such as Honda’s collision mitigation brake system(CMBS)can help achieve traffic safety.In this paper,the naturalistic driving study and a series of simulations are combined to better evaluate the performance of the CMBS in the Chinese traffic environment.First,because safety-critical situations can be diverse especially in the Chinese environment,the Chinese traffic-accident characteristics are analyzed according to accident statistics over the past 17 years.Next,10 Chinese traffic-accident scenarios accounting for more than 80%of traffic accidents are selected.For each typical scenario,353 representative cases are collected from the traffic-management department of Beijing.These real-world accident cases are then reconstructed by the traffic-accident-reconstruction software PC-Crash on the basis of accident-scene diagrams.This study also proposes a systematic analytical process for estimating the effectiveness of the technology using the co-simulation platform of PC-Crash and rateEFFECT,in which 176 simulations are analyzed in detail to assess the accident-avoidance performance of the CMBS.The overall collision-avoidance effectiveness reaches 82.4%,showing that the proposed approach is efficient for avoiding collisions,thereby enhancing traffic safety and improving traffic management.
文摘目的:功能性踝关节不稳表现为本体感觉异常、神经肌肉控制能力下降以及反复性踝扭伤,严重影响其日常活动。本体感觉作为功能性踝关节不稳的重要方面,与对侧肢体和健康人群相比是否存在本体感觉的缺陷尚不明晰。因此,文章旨在分析功能性踝关节不稳的本体感觉特征。方法:计算机检索PubMed,Web of Science,EBSCO-host,Ovid,EMbase和中国知网数据库,搜索有关功能性踝关节不稳本体感觉特征的观察性研究,暴露因素为运动觉、关节位置觉、力觉中至少一项本体感觉缺陷,检索时限为各数据库建库至2022年2月。由2名研究者根据纳入与排除标准独立筛选文献并根据纽卡斯尔-渥太华量表与美国医疗保健研究和质量机构制定的横断面研究质量评价表评价纳入研究的质量,提取有关运动觉、关节位置觉、力觉与设定目标的绝对误差,使用RevMan 5.3软件进行Meta分析。结果:共纳入26项观察性研究,其中4项队列研究,6项病例-对照研究,16项横断面研究,均为中等以上质量文献。Meta分析结果显示:单侧功能性踝关节不稳患者相比于对侧肢体和健康人群存在内翻运动觉缺陷(SMD=0.53,95%CI:0.36-0.71,P<0.00001);单侧功能性踝关节不稳患者相比于对侧肢体存在内翻关节位置觉(主动与被动复制)的缺陷(SMD=1.60,95%CI:0.77-2.43,P=0.0002);单侧功能性踝关节不稳患者相比于健康人群存在内翻关节位置觉(主动与被动复制)的缺陷(SMD=0.66,95%CI:0.25-1.07,P=0.002);单侧功能性踝关节不稳患者相比于健康人群存在主动外翻关节位置觉缺陷(SMD=3.68,95%CI:1.85-5.52,P<0.0001);单侧功能性踝关节不稳患者相比于健康人群存在被动外翻关节位置觉缺陷(SMD=-0.61,95%CI:-1.19至-0.02,P=0.04);单侧功能性踝关节不稳患者与健康人群在跖屈关节位置觉(主动与被动复制)方面无显著性差异(SMD=0.80,95%CI:-0.19-1.79,P=0.11);单侧功能性踝关节不稳患者与健康人群在背屈关节位置觉(主动与被动复制)方面无显著性差异(SMD=0.86,95%CI:-0.01-1.74,P=0.05);单侧功能性踝关节不稳患者相比于健康人群存在冠状面运动的力觉缺陷(SMD=1.35,95%CI:0.85-1.85,P<0.00001),并且亚组分析显示,单侧功能性踝关节不稳患者相比于健康人群,外翻力觉误差大于与内翻力觉误差(P=0.44)。结论:单侧功能性踝关节不稳患者与对侧肢体相比存在内翻运动觉缺陷,而与健康人群相比存在内翻运动觉、主被动内翻关节位置觉、主动外翻关节位置觉、内翻和外翻的力觉缺陷。
文摘目的利用大样本的真实世界数据,分析头孢哌酮钠/舒巴坦钠相关严重过敏反应发生情况及其影响因素。方法借助"医疗机构药品不良事件(adverse drug events,ADE)主动监测与智能评估警示系统"(ADE-ASAS)回顾性自动监测解放军总医院2013年7月至2018年6月使用注射用头孢哌酮钠/舒巴坦钠的住院患者,双人评价系统报警病例,获得头孢哌酮钠/舒巴坦钠相关严重过敏反应的发生率与特征,并进行影响因素分析。结果 31 684例次用药患者发生严重过敏反应28例,发生率为0.88‰。多因素Logistic回归分析显示,过敏史(OR=4.861,95%CI:1.88312.546)、风湿免疫疾病(OR=4.611,95%CI:1.75312.127)为头孢哌酮钠/舒巴坦钠致严重过敏反应的影响因素。结论头孢哌酮钠/舒巴坦钠相关严重过敏反应发生率属罕见范围。详询患者过敏史、既往史有助于降低临床用药风险。
基金supported by the National Natural Science Foundation of China(Grant No.11032008)
文摘The information on the force of extraocular muscles(EOMs)is beneficial for strabismus diagnosis and surgical planning,and a direct and simple method is important for surgeons to obtain these forces.Based on the traditional model,a numerical simulation method was proposed to achieve this aim,and then the active force of the lateral rectus(LR)muscle was successfully simulated when the eye rotated every angle from 0°to 30°in the horizontal plane from the nasal to the temporal side.In order to verify these simulations,the results were compared with the previous experimental data.The comparison shows that the simulation results diverged much more than the experimental data in the range of 0°–10°.The errors were corrected to make the simulation results closer to the experimental data.Finally,a general empirical equation was proposed to evaluate the active force of the LR muscle by fitting these data,which represent the relationship between the simulation forces and the contractive amounts of the LR muscle.
