查询词典 rhythm methods

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。

Having cadence or rhythm .Accentual rhythm; accentual verse.

根据重音定的节奏；根据重音定节奏的诗歌

The Rhythm of Spirit is created by Puyang Acrobatics Art Center, the branch of Puyang Haoyi Group. The Rhythm of Spirit is a top performance, merged the acrobatics、kongfu and buffoonery into an organic whole.

4楼《神韵》是濮阳豪艺集团所属的濮阳市杂技艺术中心集国内外、综合性、现代化杂技艺术于一体的精品节目，由该中心全体演职人员独立完成，全场历时90分钟。

Poetic rhythm s of New Metrical Poetry are the regular arrangement of time units of the same sound intervals,which comprise several levels: the most basic rhythm ical unit is sound caesura and semantic caesura.

新诗的语言节奏是声音大致相等的时间段落组合后形成的有规律的起伏。

On the display environment itself, a reasonable space design is a design show jumping in rhythm and smooth rhythm, and other artistic effect of the key to correctly handle and grasp the function of the space complementary relationship is to build an ideal environment demonstrate the essence.

就展示环境本身而言，采用合理的空间设计是构成展示设计中跳跃节奏、顺畅韵律等艺术效果的关键；正确处理和把握功能空间的相辅相成的关系是构筑出理想的展示环境的精髓。

These artists steeped in the rhythm in time, tasting the rhythm of time, enjoying the brilliance and entailment that time brings to life.

这些艺术家浸淫于时间的节奏，品味着时间的韵律，咀嚼和享受着时间带给生命的光耀和蕴涵。

These brain cells actas the body's internal clock. Some maintain a natural rhythm of roughly 24.5hours (thus a human kept in the dark will gradually fall out of synchronisationwith the day). Others entrain that rhythm to the light and dark cycles detectedby the eye.

这些脑细胞就像是人体内部的生物钟，有的具有大约24.5个小时的自然节律（因此一个人处于黑暗之中，渐渐地，他与白天的同步性会降低）；其他的脑细胞则可以根据眼睛感应的昼夜循环来维持这一生物钟。

HCN4 is as wrong as all sorts of rhythm of the heart the relationship is close, familial sex Dou Xingxin has eaten the transmissibility rhythm of the heart such as delay show outside gene of wrong patient HCN4 child alkaline base be short of break or the change that bump changes mutation to bring about HCN4 passageway albumen, cause If extent to decrease, belong to euchromosome dominance heredity.

HCN4和各种心律失常关系密切，家族性窦性心动过缓等遗传性心律失常患者HCN4基因外显子碱基的缺失或颠换突变导致HCN4通道蛋白的改变，引起If幅度减少，属于常染色体显性遗传。

In the teaching process, the teacher should well develop its predominant function, according to the characteristics of language class teaching rhythm, carry out a valid control to the rhythm of the class teaching, with generally photograph ring various factor of teaching effect, make the formation harmonious resonance, attain the best combination, obtain superior effect.

在教学过程中，教师应充分发挥其主导作用，根据语文课堂教学节奏的特点，对课堂教学节奏实施有效控制，以统摄影响教学效果的各种因素，使形成和谐共振，达到最佳组合，取得最优效果。

The use of games, songs, performances, Chant and TPR activities, students have to experience the rhythm of the language of rap, rhythm of the singing in the language of feelings, so that students in a happy state of mind, and actively take the initiative to learn new knowledge, acquire new language; can also use a variety of teaching media pictures, objects, toys, slides, projectors, video, sound recordings, fingerstall, puppetry, etc.

利用游戏、歌曲、表演、Chant及TPR活动让学生在有节奏的说唱中体验语言，在有韵律的歌唱中感受语言，让学生在快乐的心境中，积极主动地学习新知识、掌握新语言；也可以利用丰富多彩的教学媒体（图片、实物、玩具、幻灯、投影、录像、录音、指套、木偶等等）让学生置身语境，有意识或无意识地开口练说，最大限度地发挥学生说英语的主动性和积极性。

They have quite a lot of work to do.

他们有许多工作要做。

Let us give you a more elaborate example of this process.

让我们给你这个过程的更多的详细例子。