查询词典 by accident

Through risk appraisal of sudden river pollution accident by hazard resources and natural environment,pollution resources appraisal is described by introducing two new conceptions,i.

通过危险源和环境因素两个方面进行河流突发性污染事故风险评价，引入加权危险河段长度和河段危害权重两个概念论述危险源风险评价，给出能够反映各河段重要性的新的危险源风险评价方法。

The basic approach of protecting people from being hurt or killed in an accident is to improve crashworthiness of vehicles. This paper starts with discussing theories and methods for vehicle passive safety design, which included experiential methods, analytic methods, multi-body dynamics methods, crash test methods and the finite element method. Emphasis will be paid to the basic FEM theories and algorithms of impact problems. Topics discussed include the governing equation, element discretization, hourglass control, time integration, material model, shell element algorithms and contact-impact algorithms. For more reliable simulation results, this paper then conducts study on how to accurately get material model parameters by combining the FEM method with experimental method, and develops relevant material test machine and parameter calculating software. Based on that, basic typical impact simulation and test validation study are conducted. On the basis of the above work, the paper studies the thin-shell structures'crashworthiness, which was affected by the following factors: spot-weld features, shell thickness, cross-section and pre-deformation. As to vehicle parts'crashworthiness, the paper conducts simulation study of designing energy-absorbing steering system and adaptive airbag system. A practical energy-absorbing steering wheel is designed as an example. In further depth research, the paper suggests several inverse quantificational methods for vehicle crashworthiness design based on the ideal crash characteristics. The above theories and methods are applied with good results through several practical vehicles' crashworthiness design and improvement.

文中对汽车碰撞安全性的设计理论和方法进行了归类和总结，其中包括经验法、解析法、多刚体动力学法、试验法以及有限元方法等；重点介绍了碰撞有限元法的基本理论和有关算法，涉及到有限元求解控制方程、单元离散、沙漏模态控制、时间积分、材料模型和应力修正、薄壳单元算法以及接触碰撞界面算法等，探讨了有限元计算中的材料模型参数获取技术，开发了相应的材料试验装置及材料模型参数反求软件，在此基础上进行了基本的碰撞仿真算例和试验对比研究；文中通过应用有限元方法研究了薄壁构件的碰撞吸能特性，指出了设计薄壁吸能构件时需要考虑的几个主要影响因素，即焊点、壁厚、横截面和预变形等；在关于车辆部件的碰撞安全性能设计中进行了吸能转向机构和自适应安全气囊的仿真研究，提出了吸能转向机构和自适应安全气囊的仿真研究方法；文中最后探讨了整车碰撞性能的设计与改进方法，提出了以理想碰撞特性为目标，采用分段加速度或者根据碰撞时间进行设计的反推设计法、部件吸能仿真优化设计法等量化设计方法，并通过综合应用文中所讨论的相关技术进行了整车碰撞性能的设计与改进实例研究，所选定的车型是大众化的普通轿车和碰撞安全性基础较差的微型面包车，研究结果表明，本文所提出的设计与改进方法是适用而有效的，具有重要的工程实用意义和价值。

According to initial police investigation to determine, electric shock may be caused by the use of Game Boy and the European version does not conform to the power supply voltage caused by, and therefore is likely to be an unfortunate accident.

据调查案件的警方初步判断，触电可能是由使用与欧洲版Game Boy电压不相符合的电源所引起的，因此很可能是一场不幸的事故。

First, select four kinds of main risks source from bigly celebrate the main risk in region source, namely the flood, drought, sand-dust weather and petroleum pollution accident, etc. According to the different a request for to habitat, study this 19 kinds of landscapes ecosystem type of the Regional induce for 7 kinds of ecosystems system: Then the marsh of bulrush, lakes and reservoirs , salt alkali wasteland, prairie, island form wood, farmland, town. The difference is proceeded by characteristic according to each type ecosystem to the analysis of four kinds of main risks source, including the certain risk all rate, delimiting the space distribute, analyzing the risk strength to the receptor etc. At proceed the revelation the different from endanger to analyze the inside, this text borrows ecosystem index number that this index sign to reflect primarily habitat the ecosystem meaning of the type of habitat the different from position, with weak an index number to show the destructibility of the habitat, from but compute each ecosystem that is lost by ecosystem system an index number.

首先，从大庆地区主要的风险源中遴选出四种主要的风险源，即洪涝、干旱、沙尘天气和石油污染等；依据不同生物类群对生境的要求，将本研究区域的19种景观生态类型归纳为7种生态系统：即芦苇沼泽、湖泡库渠、盐碱荒地、草甸草原、岛状林、农田、城镇；对四种主要风险源的进行分析，包括确定风险概率，划定空间分布，对风险受体的作用强度分析等；在进行暴露和危害分析中，本文主要借生态指数这一指标来反映不同生境类型的生态意义和地位，以脆弱度指数来体现不同生境的易损性，从而计算出各受体生态系统的生态损失度指数；由于各主要风险物质对风险受体的作用强度是不同的，对形成区域性生态风险的作用大小也有差异，因此本文采用层次分析法对主要生态风险物质进行综合评价，并把判断矩阵排序权值的合理计算问题归为—非线性化问题，并提出用基于遗传算法(GA[5])的层次分析模型进行权重分析；进行风险表征，即综合前面两个阶段的信息，对环境中风险的性质和强度以及风险评价过程中不确定性问题进行分析与描述，并划分出五级生态风险区；最后，根据划分的五级生态风险区的特征，分别提出针对各生态风险区的生态风险管理对策。

For the request of identifying the accident in an open pit exploitation caused by popping rock , we had on site investigation, analyzed the two kinds of dobe powder bag, calculated the popping distance and reached the conclusion that some masses of popping rock produced by reblasting may hurt people 160m away.

对某矿场二次爆破个别飞石伤人事故进行鉴定，通过实地勘测、调查取证，分析了两种裸露药包法爆破大块时可能发生的空气冲击波和个别飞石安全距离，认为该矿场二次爆破产生的个别飞石，可以飞达 160 m处对人员造成伤害。

This case study reports a car accident patient who used Halo-vest to help his epistropheus fracture cure. The subject was taken care by the author from May 12 to May 17, 2007. The author analyzed the data by applying Gordon 11 functional health patterns. These data were collected from clinical observation, interviews, physical assessment and chart review.

本文介绍照顾一位车祸导致第二颈椎齿状突骨折使用Halo-vest个案之护理经验，笔者於2007年5月12日至5月17日照护期间，运用Gordon 11项健康功能评估，藉由观察、会谈、身体评估、病历查阅等方式收集资料，归纳个案具有睡眠型态紊乱、身体心像改变及潜在危险性感染之健康问题。

He is one the orphan who is abandoned by the human on the vapor ship, a good intention fever furnaceman is adopted by the ship on, however the good person does not have good to report, burns the furnaceman to die in an accident, only then several years old big 1900 have become the orphan once again.

他是一个被人遗弃在蒸气船上的孤儿，被船上一位好心的烧炉工收养，然而好人不得好报，烧炉工在一次意外中死亡，只有几岁大的1900又再度成为了孤儿。

A home may be destroyed by fire, damaged by lightning, or leveled by a tornado. Personal belongings may be stolen. A car may be damaged in an accident, or it may cause injury to people and property. Income may be lost as the result of the death, disability, or unemployment of a family wage earner.

住宅可能遭火灾而烧毁，因雷电袭击而受损或被龙卷风夷为平地；人人财物可能被盗，汽车可能在车祸中受损或伤人毁物；家中挣工资的人可能由于死亡，丧失劳动力或失业而使这个家庭失去收入。

There are many myths surrounding wine storage, some perpetrated by the wine-storage industry, some by historical accident and some by people with state-of-the-art systems who feel that their hardware proves their credentials as oenophiles.

有许多有关储藏葡萄酒的说法，其实是似是而非的迷思，造成这些误导人的观念的原因各有不同，有些是葡萄酒贮藏业故意为之，有些是由某一历史事件造成，而另一些则是由那些拥有最先进的贮藏系统的人造成的，这些人觉得自己的先进硬件设备证明了他们品酒专家的头衔。

Direct left turn from driveways is considered as a contributor to accident and delay in at-grade intersections. Safety benefits of prohibiting direct left turn from driveways have been identified in many studies. Several engineering alternatives have been developed to accommodate prohibited driveway left turns. These alternatives are (1) right-turn followed by U-turn at the down stream intersection;(2) right-turn followed by median U-turn before the intersection;(3) right-turn followed by median U-turn after the intersection;(4) upstream Jug Handle, and (5) downstream Jug Handle.

鉴于直接左转机动车交通常是路口事故和延误的诱因之一，左转禁驶在许多研究中都作为一项安全措施处理，直接左转处理方式有多种，大致包括：(1)下游路口右转后U形调头直行；(2)当前路口右转后在下一路口前的隔离带打U形调头直行；(3)当前路口右转后在下一路口后的隔离带打U形调头直行；(4)在当前路口上游打&壶柄状&转行；(5)在当前路口下游打&壶柄状&转行。

Fancy gold-plated dangling earrings with facetted White Opal crystals.

花式镀金悬垂耳环与facetted白欧泊水晶。

This essay chooses the study aim from biology teachers in middle school in Shi Jiazhuang which tells us that most of the middle school biology teachers in Shi Jiazhuang have the"burnout", lower successfulness, individualize.

本文选取石家庄市初中生物教师作为研究对象，运用问卷调查的方法对石家庄市初中生物教师职业倦怠的现状进行调查，调查结果发现，石家庄市初中生物教师这一群体普遍存在职业倦怠，情感枯竭程度偏高，成就感偏低，去个性化程度最为严重。