Crash compatibility of a light truck vehicle to a passenger car: The relationship between delta velocity and occupant injury severity

研究了真实世界事故中、侧面冲击载荷作用下轻型卡车与轿车驾乘人员的损伤位置分布。采用了美国国家汽车取样系统/耐撞性数据库(nASS/CdS)近136万个碰撞兼容性案例,将所有驾乘人员损伤等级分为MAIS0-7和MAIS3+两种情况,在不同速度下,以涉案撞击车和被撞击车在碰撞前后的速度变化值为变量,分析了乘员不同损伤部位(头部/面部/颈部、胸部、骨盆、上肢和下肢)的损伤分布。结果表明:撞击车乘员受损速度区间比被撞击车偏大,乘员损伤风险偏低。因此,从碰撞兼容性角度考虑,减少驾乘人员的骨盆损伤,可以减少所有涉案乘员损伤风险机率。This paper analyzes the distribution of injured occupants in side impact collisions of light truck vehicles to passenger cars in the real world.The injury levels were divided into MAIS 0-7 injured occupants and MAIS 3+ injured occupants.The injury distribution of five main seriously injured body regions (including head/face/neck, chest, pelvis, upper extremity and lower extremity) was investigated at delta velocity before and after crash, using the delta velocity of struck and striking vehicles as the variable, according to 1.36 million weighted crash compatibility cases extracted from the US National Automotive Sampling System (NASS) / Crashworthiness Data System (CDS) database.The results show that the delta velocity of striking vehicle is larger than that of the struck vehicle, and the occupant injured risk ratio is lower than that of the struck vehicle.Therefore, avoiding the pelvis injury of drivers and passengers can reduce the risk of total occupants involved in the collisions in consideration of crash compatibility.厦门理工学院科技研究项目(JKY10023R);福建省教育厅科技项目(JA11239

急性心筋梗塞におけるFDG-PET，BMIPP，Tetrofosmin 心筋スキャンでの経時的推移の検討 : 急性期から遠隔期まで

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水华条件下鄱阳湖区植物叶片碳氮同位素特性

为探讨水华发生区水生植物微观碳氮代谢特性,于2014年同期监测了鄱阳湖6个具重要生态功能的湖区水质,同时采集各湖区两种生活型优势水生植物——马来眼子菜(Potamogeton malaianus)和荇菜(Nymphoides peltatum),并对其叶片中δ13C和δ15N同位素进行分析.结果表明,相对于非水华区,水华区水体中ρ(Chla)、ρ(TN)、ρ(TP)、ρ(NH4+-N)明显偏高,处于富营养态.马来眼子菜叶片δ13C偏低0.22‰~3.91‰,δ15N偏低0.66‰~10.15‰;荇菜叶片δ13C偏高1.15‰~2.37‰,δ15N偏低3.02‰~4.81‰.水华区马来眼子菜叶与荇菜叶中δ13C、δ15N趋同,差异变小,分别为3.53‰和0.37‰(非水华区δ13C差异为5.93‰~8.59‰,δ15N差异为0.63‰~7.50‰);各采样点马来眼子菜叶δ15N相对于荇菜叶δ15N偏高0.37‰~7.50‰,其δ13C变幅(3.91‰)更大(荇菜叶片为2.37‰).研究显示,马来眼子菜受环境的影响更大,能更敏感地指示环境灾变

水华条件下鄱阳湖区植物叶片碳氮同位素特性

为探讨水华发生区水生植物微观碳氮代谢特性,于2014年同期监测了鄱阳湖6个具重要生态功能的湖区水质,同时采集各湖区两种生活型优势水生植物&mdash;&mdash;马来眼子菜(Potamogeton malaianus)和荇菜(Nymphoides peltatum),并对其叶片中&delta;13C和&delta;15N同位素进行分析.结果表明,相对于非水华区,水华区水体中&rho;(Chla)、&rho;(TN)、&rho;(TP)、&rho;(NH4+-N)明显偏高,处于富营养态.马来眼子菜叶片&delta;13C偏低0.22&permil;~3.91&permil;,&delta;15N偏低0.66&permil;~10.15&permil;;荇菜叶片&delta;13C偏高1.15&permil;~2.37&permil;,&delta;15N偏低3.02&permil;~4.81&permil;.水华区马来眼子菜叶与荇菜叶中&delta;13C、&delta;15N趋同,差异变小,分别为3.53&permil;和0.37&permil;(非水华区&delta;13C差异为5.93&permil;~8.59&permil;,&delta;15N差异为0.63&permil;~7.50&permil;);各采样点马来眼子菜叶&delta;15N相对于荇菜叶&delta;15N偏高0.37&permil;~7.50&permil;,其&delta;13C变幅(3.91&permil;)更大(荇菜叶片为2.37&permil;).研究显示,马来眼子菜受环境的影响更大,能更敏感地指示环境灾变.</p