Results 31 to 40 of about 572,387 (226)

Characterization of Magnesium Potassium Phosphate Cement-Based Grouting Material Blended with High Volume Industrial Wastes

open access: yesAdvances in Materials Science and Engineering, 2022
In the present research, industrial wastes, e.g., fly ash (FA), lithium slag (LS), ground granulated blast furnace slag (GGBS), and red mud (RM) were utilized to prepare the magnesium phosphate cement (MPC)-based grouting material by a two-component ...
Luchen Zhang   +4 more
doaj   +1 more source

Analysis and Prediction of Stable Height of Capillary Water Rising under Unsaturated Subgrade Soil

open access: yesAdvances in Civil Engineering, 2022
In order to study the capillary water height of the highway subgrade and balanced moisture condition of the subgrade affected by groundwater, the standpipe method has been used in this study to track the measured data.
Jianfeng Cao   +5 more
doaj   +1 more source

Using the Information Quantity Method to Assess the Regional Risk of Highway Slope to Improve the Level of Risk Management

open access: yesAdvances in Civil Engineering, 2023
In recent years, there have been many studies on regional geological hazard risk assessment. However, most previous research focused on natural geological disasters such as landslides and debris flows.
Mingli Shao, Shuai Hou, Junfeng Gao
doaj   +1 more source

Assisting V2V failure recovery using Device-to-Device Communications

open access: yes, 2015
This paper aims to propose a new solution for failure recovery (dead-ends) in Vehicle to Vehicle (V2V) communications through LTE-assisted Device-to-Device communications (D2D).
Abd-Elrahman, Emad   +4 more
core   +1 more source

Transportation, Stress, and Community Psychology

open access: yesAmerican Journal of Community Psychology, 1979
Conditions of transportation were investigated as sources of psychological stress as they affect the physiology, task performance, and mood of commuters. Participants in the study were 100 employees of industrial firms. Traffic congestion was construed as a behavioral constraint in terms of the concept of impedance which is defined by the parameters of
Nocavo, Raymond W.   +3 more
openaire   +4 more sources

Effect of Fiber Content on Mechanical Properties and Microstructural Characteristics of Alkali Resistant Glass Fiber Reinforced Concrete

open access: yesAdvances in Materials Science and Engineering, 2022
Owing to its enhanced strength, ductility, and resistance to harsh environments, increasing research attention has been paid to alkali-resistant glass fiber reinforced concrete (ARGFRC).
Chao Wu   +5 more
doaj   +1 more source

Spatial-diffusion characters and emission reduction strategy for motor vehicle pollutants on expressway

open access: yesDiscover Environment
This research tries to establish the emissions diffusion model of high-speed motor vehicles on the Capital Ring Expressway (CRE) around Beijing, China, applying the MOVES and the CALPUFF models.
Shengyong Yao   +9 more
doaj   +1 more source

Lockdown effects of the COVID-19 on the spatio-temporal distribution of air pollution in Beijing, China

open access: yesEcological Indicators, 2023
To prevent the spread of COVID-19, China enacted a series of strict policies, which reduced anthropogenic activities to a near standstill. This provided a precious window to explore its effects on the spatio-temporal distribution of air pollution in ...
Min Wu   +3 more
doaj   +1 more source

A Simulation Study for Lateral Stability Control of Vehicles on Icy Asphalt Pavement

open access: yesJournal of Advanced Transportation, 2022
Black ice is an ice layer formed by freezing rain or accumulated water on the asphalt pavement surface in cold weather. This ice layer completely shields the texture structure of the pavement and destroys the original microstructure.
Yunsheng Zhu   +4 more
doaj   +1 more source

A Markov model for inferring flows in directed contact networks

open access: yes, 2018
Directed contact networks (DCNs) are a particularly flexible and convenient class of temporal networks, useful for modeling and analyzing the transfer of discrete quantities in communications, transportation, epidemiology, etc.
E Ser-Giacomi   +12 more
core   +1 more source

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