Through measurement and analysis the critical density of Kerner s non-linear model, the propagation speed of the wide moving jam and the unimpeded velocity of Greenshields s model are obtained.
以北京市一个路段的实际录像资料为例,通过测量和分析获得Kerner非线性模型中的临界密度、宽运动堵塞的传播速度和Greenshields模型中的畅行速度等参数。
Different from the typical evaluation index-level of service,this paper adopts critical density ratio to evaluate the operation condition of urban highway basic sections,which synthetically reflects the requests of both road managers and users.
与传统的服务水平评价不同,采用能够综合反映道路管理者和道路使用者共同要求的评价指标——临界密度比对城市快速路基本段的运行状况进行评价;根据快速路交通信息采集系统提供的大量数据,比选了适合的交通流模型,并对临界密度进行标定;最后给出了评价指标的等级划分和对应状态的描述。
The experimental results showed that there was a critical density for transition to detonation at certain confinement condition.
不同密度炸药的DDT性能不同,较低密度的炸药更容易发生DDT现象,固体压装B炸药存在一个燃烧转爆轰的临界密度值。
threshold population inversion density
临界粒子数反转密度
Modeling the Supercritical Adsorption of Hydrogen on A- and X-Type Zeolites with a Lattice Density Function
氢气在A和X型沸石上超临界吸附的格子密度函数模型(英文)
Relationship between the number of average valence electrons and the critical current density of the doping MgB_2
平均价电子数与掺杂MgB_2体系临界电流密度的关系
Interferometry for Particle-emitting Source of High Baryon Density
对高重子数密度粒子发射源的干涉学分析
Stability Studies for Fast Electron Beams in Dense Plasmas
超临界密度等离子体中快电子束稳定性的研究
In this study they attempted to predict the critical micelle concentration (CMC).
在研究中，他们尝试着预测临界胶态粒子浓度(CMC)。
The Study of Lasing Without Inversion in an Open V-Type System;
开放的V型无粒子数反转激光系统的理论研究
particle flux density monitor
粒子通量密度监测器
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
Study on Formic Acid Decomposition in Supercritical Water with Density Functional Theory
甲酸在超临界水中分解反应的密度泛函理论研究
Vibration Characteristics of Jeffcott Rotor System Supported by Cylindrical Roller Bearings
圆柱滚子轴承若干参数对弹性转子系统临界转速的影响
torsional critical speed
扭转临界速度 -电机的
Preparing Drug Micro-particles by Supercritical Anti-solvent Process;
超临界反溶剂过程制备药物超细微粒
Determination of Triton X-100 and Its Critical Micelle Concentration with Luminescence Gold Nanoparticles
发光金纳米粒子测定曲通X-100及其临界胶束浓度
diffusion coefficient for neutron number density
中子数密度扩散系数
The necessary population inversion can be achieved in a variety of ways.
我们可以用各种方法来实现这种必要的粒子数反转。
The Theoretical Study of Lasing without Inversion in an Open Three Level Ladder-Type System;
开放的Ladder型三能级无粒子数反转激光系统的理论研究
The Theoretical Study of Lasing Without Inversion in an Open Four-level System;
开放的四能级无粒子数反转激光系统的理论研究
