Results 21 to 30 of about 78,218 (312)

A Study of Mixed Non-Motorized Traffic Flow Characteristics and Capacity Based on Multi-Source Video Data

Sensors
Mixed non-motorized traffic is largely unaffected by motor vehicle congestion, offering high accessibility and convenience, and thus serving as a primary mode of “last-mile” transportation in urban areas. To advance stochastic capacity estimation methods
Guobin Gu, Xin Sun, Benxiao Lou, Xiang Wang, Bingheng Yang, Jianqiu Chen, Dan Zhou, Shiqian Huang, Qingwei Hu, Chun Bao   +9 more
doaj   +1 more source

A Modified Network-Wide Road Capacity Reliability Analysis Model for Improving Transportation Sustainability

Algorithms, 2020
Reserve capacity is the core of reliability analysis based on road network capacity. This article optimizes its bi-level programming model: the upper-level model has added service level coefficient and travel time limit, which realizes the unification of
Kui Ji, Jianxiao Ma
doaj   +1 more source

A stochastic differential equation SIS epidemic model [PDF]

, 2011
In this paper we extend the classical susceptible-infected-susceptible epidemic model from a deterministic framework to a stochastic one and formulate it as a stochastic differential equation (SDE) for the number of infectious individuals $I(t)$. We then
Hu, L., X. Mao, Greenhalgh, David, D. Greenhalgh, Mao, Xuerong, Gray, Alison, Pan, Jiafeng, A. Gray, L. Hu, J. Pan   +9 more
core   +1 more source

Estimation of stochastic traffic capacity using extreme value theory and censoring: A case study in Salem, New Hampshire [PDF]

Archives of Transport, 2018
In this work, we introduce a method of estimating stochastic freeway capacity using elements of both extreme value theory and survival analysis. First, we define capacity data, or estimates of the capacity of the roadway, as the daily maximum flow values.
Eric M. LAFLAMME, Paul J. OSSENBRUGGEN
doaj   +1 more source

Implementing Estimation of Capacity for Freeway Sections

Journal of Applied Mathematics, 2011
Based on the stochastic concept for freeway capacity, the procedure of capacity estimation is developed. Due to the fact that it is impossible to observe the value of the capacity and to obtain the probability distribution of the capacity, the product ...
Chang-qiao Shao
doaj   +1 more source

Influence Factor Analysis of Stochastic Capacity of Shanghai Expressway Segment

Procedia - Social and Behavioral Sciences, 2013
AbstractRecent studies have introduced a new approach of estimating expressway capacity. The capacity of expressway segments is treated as a random variable instead of the traditional approach of a constant value. Different distribution functions are compared and the Weibull-distribution is used as the distribution function of stochastic capacity.
Chao, Yang, Zhengzheng, Chen, Chenrui, Hua   +2 more
openaire   +1 more source

Two-Stage Stochastic Programming for the Refined Oil Secondary Distribution With Uncertain Demand and Limited Inventory Capacity

IEEE Access, 2020
In recent years, more and more oil companies adopt initiative delivery mode to make the refined oil secondary distribution scheme. In this work, we focus on the optimization problem of refined oil secondary distribution based on the initiative ...
Zhenping Li, Yuwei Zhang, Guowei Zhang
doaj   +1 more source

Salmonella lipopolysaccharide‐containing supported lipid bilayers as platforms to study bacteriophage interactions

FEBS Letters, EarlyView.
We present robust protocols for the preparation of supported lipid bilayers (SLBs) incorporating either Salmonella smooth LPS or outer membrane vesicles (OMVs). We use a combination of quartz crystal microbalance with dissipation (QCM‐D) and fluorescence microscopy to both characterize the SLBs of various compositions and to probe their interactions ...
Hudson P. Pace, Alyssa Borges, Charles Arnaud, Tove Karlsson, Nina K. Bröker, Stefanie Barbirz, Marta Bally   +6 more
wiley   +1 more source

From mice to humans—divergent strategies for intestinal homeostasis and regeneration

FEBS Letters, EarlyView.
Recent advances such as organoid genome editing, xenotransplantation, imaging, and whole‐genome sequencing have enabled direct studies of human intestinal stem cells (ISCs). These studies reveal species‐specific features, including slower ISC proliferation, distinct injury responses, slower somatic mutation accumulation in humans, and an inverse ...
Keiko Ishikawa, Shinya Sugimoto, Toshiro Sato   +2 more
wiley   +1 more source

Non-parametric probabilistic seismic capacity model for the stochastic interaction system of soil-subway station structures

Underground Space
A reasonable seismic capacity model is crucial for establishing the seismic performance level system and evaluating the seismic reliability of subway station structures.
Minze Xu, Chunyi Cui, Hailong Liu, Jingbo Li, Jingtong Zhao, Chengshun Xu   +5 more
doaj   +1 more source