Results 91 to 100 of about 35,342 (236)

An Integrated Multisource and Multiscale Monitoring Technique for Assessing the Health Status of High-Speed Railway Subgrade

Remote Sensing
The precise identification of railway subgrade defects remains a significant challenge for the railway industry globally. Due to the limitations of individual monitoring techniques, comprehensive information on subgrade defects cannot be obtained.
Yuanxingzi He, Yongwei Li, Linrong Xu
doaj   +1 more source

A Bio-Wicking System to Prevent Frost Heave in Alaskan Pavements: Phase II Implementation [PDF]

, 2019
Water within pavement layers is the major cause of pavement deterioration. High water content results in significant reduction in soil’s resilient behavior and an increase in permanent deformation.
Galinmoghadan, Javad, Lin, Chang, Zhang, Xiong   +2 more
core  

A Bio-Wicking System to Mitigate Capillary Water in Base Course [PDF]

, 2016
Water within pavement layers is the major cause of pavement deteriorations. High water content results in significant reduction in soil’s resilient behavior and increase in permanent deformation. Conventional drainage systems can only drain gravity water
Lin, Chuang, Zhang, Xiong
core  

Research on Construction Countermeasures for Freeze–Thaw Deformation of Permafrost Subgrade in Forest Regions of Northeast China

Applied Sciences
The permafrost in forest regions of Northeast China is very sensitive to the disturbance of subgrade construction, which will aggravate the degradation of the permafrost upper limit, leading to freeze–thaw deformation of the permafrost subgrade. Based on
Zhibo Xu, Guihe Wang, Zhu Yang
doaj   +1 more source

Analysis and observation of grid connected single phase inverter integration [PDF]

, 2020
A single-phase grid connected with a photovoltaic (PV) power system that will provide high voltage gain with state model analysis for the control of the system has been presented.
Ali Ateya, Ali Mohamed
core  

Life cycle analysis of road construction and use [PDF]

, 2019
Both the construction and use of roads have a range of environmental impacts; therefore, it is important to assess the sources of their burdens to adopt correct mitigation policies.
D'Andrea, Antonio, Moretti, Laura, Trunzo, Giampiero   +2 more
core   +1 more source

Pile-Soil Interaction in Unsaturated Soil Conditions [PDF]

, 2014
The degree of saturation has been proven to significantly affect geotechnical engineering designs for foundations. The changes in water content will influence the way the soil behaves, including its strength and stiffness parameters.
Hamilton, Megan
core   +2 more sources

Sampietrini stone pavements: Distress analysis using pavement condition index method [PDF]

, 2017
In several Italian cities, it is possible to find historical pavements such as the Sampietrini pavements, which are mainly located in the center of the city of Rome.
Galoni, Andrea, Loprencipe, Giuseppe, Zoccali, Pablo   +2 more
core   +1 more source

Facile generation and regulation of oxygen vacancies in BiOCl catalysts for effectively photocatalytic degradation of Rhodamine B

Results in Chemistry
Introducing oxygen vacancies (OVs) in BiOCl catalyst has been regarded as an effective strategy in broadening the narrow range of light response and enhance separation efficiency of photo-induced carriers.
Fei Pei, Xin'’e Yan, Jiajie Dong, Youwen Xu, Songyuan Yao, Wei Zhao   +5 more
doaj   +1 more source

Dynamic effect of high speed railway traffic loads on the ballast track settlement [PDF]

, 2011
The traditional ballast track structures are still being used in high speed railways lines with success, however technical problems or performance features have led to non-ballast track solution in some cases.
Gabaldón Castillo, Felipe, Goicolea Ruigómez, José María, Nguyen Gia, Khanh   +2 more
core   +1 more source