Based on the analysis of the variation law of smoke flow in subway platform fire,a concept about critical ventilation speed from platform to concourse was presented.
在分析了地铁站台火灾时烟气流场变化规律的基础上,提出了临界通风速度的概念。
Numerical simulation and analysis of smoke characteristics and critical velocity in underground railway tunnel while fire;
地铁隧道火灾烟气特性与临界风速的数值模拟分析
Furthermore, a critical velocity of air flow expression for transition from upward smoldering to flaming combustion is constructed.
根据在此条件下的阴燃特点,建立了稳定阴燃时实验材料内部的气流速度模型和阴燃向有焰火转化时的临界风速判定表达式。
The model for calculating the critical velocity in a tunnel cross-passage is established on the basis of the critical Froude theory.
从临界Froude数理论出发建立了计算联络通道临界风速的模型。
Objective To evaluate the therapeutic effectiveness and the clinical risk of excessive drainage by thoracentesis.
目的观察超量排放胸水的治疗效果及临床风险。
Based on vibration theory,this paper presents concise methods for critical wind speed,Vcr,at which tube members start the aeolian vibration,and resonance force calculations,and analyzes the influences of resonant bending and fatigue stress on safety of web and auxiliary members that are subject to the aeolian vibration.
文章根据振动理论给出微风振动钢管构件的起振临界风速Vcr和共振力的简明计算方法,分析了共振产生的弯曲和疲劳应力对易发生微风振动的杆塔斜材和辅材结构安全性的影响。
The three-series solution is taken up to the nonlinear differential equation of the galloping movement caused by the cross wind force acting on a high-rise structure, thus giving a reduced 3D expression in terms of steady-state response and critical wind speed.
应用三级数法求解横风向的弛振的非线性运动微分方程,得到了三维结构的简明的稳态响应和临界风速表达式。
At the same time,it analysis relative factors of smoke control in the tunnal, and gives the critical wind speed of smoke control in the typical tunnel.
在分析目前国内外地铁隧道火灾人员疏散方式的基础上 ,建议采用提高疏散效率且基本不增加投资的侧向疏散平台加联络通道的疏散方式 ,同时分析了隧道烟气控制的有关因素 ,给出了典型隧道烟气控制的临界风速 (危急空气流速
We study the properties of doubling rate-risk function and critical risk and estimate the the maximal and minimal risks.
本文讨论有风险控制的最优投资组合问题并研究了倍率风险函数及临界风险的性质，最大最小风险的估计；给出了其倍率风险函数有严格解析形式的例子。
Experimental Study on Critical Ventilation Velocity in Tunnel
长建筑通道内临界通风速度的实验研究
Model of Critical Velocity for Fire Ventilation in Horizontal Tunnels
水平隧道火灾通风纵向临界风速模型
Numerical studies on the critical air velocity affected by tunnel slope
隧道坡度对临界风速影响的数值研究
Research of Effective Neutron Multiplication Factor and Neutron Flux Distribution for Accelerator Driven Sub-Critical System on DF-3 Facility;
在东风3号上开展加速器驱动次临界系统有效增殖系数和中子通量密度分布研究
torsional critical speed
扭转临界速度 -电机的
critical cooling rate
马氏体临界冷却速度
Influences of Boundary Conditions on Critical Velocity in Tunnel Fire Model Test
边界条件对隧道火灾模型试验临界风速的影响
Engineering Calculation of Critical Velocity and Settling Velocity of Granular Materials
颗粒物料临界速度和沉降速度的工程计算
Critical Speed of Circumference Movements in Vertical Planes;
竖直平面内圆周运动的临界速度问题
In Take-off Movement "Critical Speed" Phenomenon Experimental Study
踏跳动作中“临界速度”现象的实验研究
Minimum fluidization velocity of bimodal polyethylene particles
双峰聚乙烯颗粒临界流化速度的研究
Research on Critical Failure Vibration Velocity of Concrete Lining in Different Thickness Under the Acting of Blasting Vibration
不同厚度砼衬砌的爆破临界振速研究
Numerical Simulation of Temperature and Velocity Fields in Vessel Engine Room;
船舶机舱通风速度场温度场数值模拟
Typhoon mean wind speed of different time-distance and its intensity estimate based on wind speed data of boundary layer of typhoon 'Vongfong'
“黄蜂”边界层风速分析——台风平均风速的时距选取与强度估计
During a storm it moves very rapidly.
风暴来临时，空气流动速度极快。
Tunnel fire critical ventilation velocity based on dimensional analysis
基于因次分析的隧道火灾临界风速研究
Theoretical calculation and numerical simulation of critical air velocity in tunnel fires
隧道火灾临界风速的理论计算与数值模拟
mine velocity head
矿井通风系统的速度压头