传播速率

狭长受限空间火场传播速率的影响因素研究

Long and narrow space limited by the impact of the fire spread rate factors

目的：应用超声心动图脉冲多普勒、组织多普勒（DTI）及彩色M型血流传播速率（Vp）技术评价心脏淀粉样变性患者的心脏功能。

Objective : To investigate the cardiac function in the patients with amyloidosis by echocardiography , Tissue Doppler Imaging ( DTI ) and color M-mode flow propagation velocity ( Vp ) .

这种火焰前锋传播速率之间的差异最后可导致变形Tulip火焰形成。

The discrepancy in the flame propagation rate can finally lead to the formation of the " distorted tulip " flame .

从理论上研究了在CO2激光器中双电极对对激光感生介质扩散的影响，讨论了激光感生介质的扩散系数、传播速率以及感生介质密度，并采用复化Simpson公式进行了数值计算。

The effect of laser induced medium diffusivity in a double pair electrodes CO 2 laser is investigated . The diffusivity , velocity and density of the laser induced medium are discussed , and the results are calculated by using Simpson formular .

这听起来似乎有些天方夜谭，但南加利福尼亚大学电子工程学教授艾伦o威尔纳最近已经开发出一种类似技术，能够使无线电传播速率达到每秒32G&大约比LTE无线传输快了30倍。

This might sound farfetched , but Alan Willner , a professor of electrical engineering at the University of Southern California , has recently developed a similar technique , which achieved a rate of 32 gigabits per second & about 30 times faster than LTE wireless .

这听起来似乎有些天方夜谭，但南加利福尼亚大学电子工程学教授艾伦o威尔纳最近已经开发出一种类似技术，能够使无线电传播速率达到每秒32G——大约比LTE无线传输快了30倍。

This might sound farfetched , but Alan Willner , a professor of electrical engineering at the University of Southern California , has recently developed a similar technique , which achieved a rate of 32 gigabits per second - about 30 times faster than LTE wireless .

阴燃的传播速率的量级在1mm/min以下。

The spread speed of smolder is under 1mm / mm .

从而得到应力波的传播速率。

So the travelling speed of stress wave can be obtained .

药床中火焰传播速率测试技术研究

A method of measuring the flame propagation rate in fire transfer tube

固体可燃物火焰传播速率及玻璃窗破碎问题的数值计算

Calculation of the flame propagation speed of solid fuel and the prediction of glass window 's breaking

目前，测定实际倒装焊封装界面分层传播速率报道尚少见。

The report of determination for interface delamination propagation rate of real flip chip packages is hardly found up to now .

得到了在相同应变下，变形带的传播速率和加载应变速率之间的幂律关系。

At the same tensile strain , the power law relationship between band propagating velocity and applied strain rate is also obtained .

由此，我们用理论分析的方法讨论了有效传播速率与复杂网络结构参量的关系。

Therefor , we used the theoretical analysis the method to discuss the effective dissemination speed and the complex network architecture parameter relation .

实验发现喷入超细水雾后，各浓度瓦斯爆炸过程中的最大爆炸超压、最大压力上升速率和最大火焰传播速率均有所上升，火焰亮度也明显增大。

It is found that the maximum explosion overpressure , pressure rising rate , flame propagation velocity and flame brightness increased after spraying into the sealed vessel .

研究了燃烧波波速、火焰传播速率、最高燃烧温度等燃烧特性参数，将计算结果与实验结果以及前人的理论结果进行对比。

Some characteristic parameters , such as the combustion wave velocity , the flame speed and the peak flame temperature , are predicted . Analytical results have been compared with the related experiments and other existed theories .

丝虫病的传播速率和流行速率非常慢，传播潜能也非常低，提示有可能通过单一的控制传染源措施，容易地控制甚至阻断其传播。

The transmission and epidemic velocity of filariasis is very low and its transmission potential is also very low so it is possible to control even interrupt its transmission only by single mesures aiming the infection source .

研究了用户安全意识在蠕虫复制阶段大量占用资源下的模型和蠕虫针对这一特征的智能控制转播，实现了蠕虫在具有一定的免杀能力下保证传播速率的特性。

Study the user safety awareness under the worm copying stage occupied by a large number of resources and worms propagation for this feature . Worms have the ability to avoid killing and keep a certain propagation speed .

研究哺乳动物脑对超声的衰减和传播速率为脑的发育、异常或病变等的监测提供了相应观察和分析的辅助参数，其直接攸关于生物大分子组织对噪声的散射和吸收。

The study of Ultrasonic attenuation and propagation speed for brain tissue of mammal Provides some subsidiary factors which are relative to evaluating and analysing the development and dysplasia or pathological changes of brain , which is in close relationship with diffusing and absorbing the noise by biological macro-molecular .

她所担忧的是昆虫传播花粉的速率将无法与其栖息地变化的情况相适应。

Her concern is that their insect pollinators won 't be able to cope with the Earth 's changing habitats .

从而得到病毒传播的有效速率与网络结构参量之间的更为普适的函数关系式。

Finally , we get the virus dissemination effective speed to relate with the network architecture parameter more general function . 3 .

在高速通信网络中，传播时延对基于速率的流量控制具有很大的不利影响。

In high-speed communication networks propagation delay has a great adverse impact on rate-based traffic control .

火花点火发动机气缸内空气运动的滚流与涡流一样，都可以增加燃烧室中的湍流强度，提高火焰传播速度和燃烧速率，从而改善燃烧过程，提高发动机的动力性能。

In-cylinder tumble motion , similar to the swirl motion , can increase the turbulence intensity and result in higher flame speed and combustion rate in spark ignition engine .

从基本繁殖率概念中提出了血吸虫病传播能量，即基本传播速率的概念和算式；

It is proposed that the concept and the formula of transmission capacity i.e. basic transmission velocity of schistosomiasis from the concept of basic reproduction rate .

随着传播技术、媒介工具的发展以及传播速率的加快，传播模式从单一趋向复杂。

With the development of communication technology and media tools and the acceleration of communication speed , the communication modes has developed from single to complex .

声波在海水中的传播速度比无线电波在空气中的传播速率低五个数量级，这将产生高延时。

The transmitting speed of sound in the sea is five times lower than that of electromagnetic wave in the air , and that will lead to high delay .

本文从网络蠕虫的传播模型入手，分析影响蠕虫传播速度的扫描速率与蠕虫感染能力之间的关系。

This paper starts with the spread model of network worm , then analyses the relation between scanning speed and worm infect ability which affects worm spread speed .

因此反馈机制是控制病毒传播的有效途径，应当尽可能地提高信息共享率和信息传播速率。

So feedback mechanism is the effective way to control the spread of the virus . We should improve information sharing rate and transmission rate as possible as we can . 2 .

通过肋木对钢琴共振板声传播速度影响的分析，结果表明肋木可显著提高共振板横纹理方向的振动传播响应速率。

The influence of ribs on the sound transmit velocity of piano resonance board was analyzed . The result shows that the ribs can enhance the sound transmit velocity on the radius direction of resonance board .