Results 71 to 80 of about 8,507,367 (359)

Characteristics of resistivity variation in deep granite and in-situ detection applications

Scientific Reports
During the construction of deep vertical shafts, water inrush and flooding accidents are prone to occur, which seriously affect construction safety. Accurately determining the groundwater conditions is a prerequisite for effectively controlling water ...
Zhen Fu, Yuezheng Zhang, Hongguang Ji, Chunrui Zhang, Dongsheng Chen, Yuan Qin   +5 more
doaj   +1 more source

Wear mechanism and life prediction of the ripper in a 9‐m‐diameter shield machine tunneling project of the Beijing new airport line in a sand‐pebble stratum

Deep Underground Science and Engineering, 2022
Tool wear is a noteworthy problem in the process of shield tunneling, and the degree of wear varies with stratum. The sand‐pebble strata in Beijing are typically mechanically unstable.
Hua Jiang, Jiachen Zhu, Xiaoyan Zhang, Jinxun Zhang, Hongliang Li, Lingfeng Meng   +5 more
doaj   +1 more source

Intelligent assessment method of life-cycle carbon emission during the highway construction phase

工程科学学报, 2023
The Chinese government has announced its “carbon peak and carbon neutrality goals” for 2030 and 2060, respectively. All industry sectors are working toward developing carbon policies to support the national dual carbon goals. The transportation industry,
Lan QIAO, Naifu DENG, Qingwen LI, Xiuge WANG, Qinglong ZHANG, Yawen WANG   +5 more
doaj   +1 more source

Decoding High‐voltage LiCoO2: From Degradation to Stabilization Toward Durable Li‐ion Batteries

Advanced Materials, EarlyView.
This review systematically addresses the degradation mechanisms and stabilization strategies for high‐voltage LiCoO2 cathodes. Key enhancement approaches including foreign‐ion doping, surface modifications, structural design, and electrolyte optimization are critically assessed.
Zezhou Lin, Yiran Ying, Huangxu Li, Yanhao Ren, Tiancheng Liu, Peiyu Hou, Haitao Huang   +6 more
wiley   +1 more source

Critical review on the cooling effect of urban blue-green space: A threshold-size perspective

, 2020
The cooling effect of blue-green space has been recognized as a promising approach to mitigate the urban heat island (UHI), while the quantitative role (threshold-size for cooling) is still uncertain.
Zhaowu Yu, Gaoyuan Yang, S. Zuo, G. Jørgensen, Motoya Koga, H. Vejre   +5 more
semanticscholar   +1 more source

Effects of the COVID-19 pandemic on the use and perceptions of urban green space: An international exploratory study

Urban Forestry & Urban Greening, 2020
Highlights • We investigated the change in visitation of urban green spaces (UGS) during COVID-19 pandemic.• Social isolation reduced extent, type and distance of visited UGS on the basis of legal restrictions.• Reasons for visiting UGS changed from non ...
F. Ugolini, L. Massetti, Pedro Calaza‐Martínez, P. Cariñanos, Cynnamon Dobbs, S. K. Ostoić, A. Marin, D. Pearlmutter, H. Saaroni, I. Šaulienė, Maja Simoneti, Andrej Verlič, D. Vuletić, G. Sanesi   +13 more
semanticscholar   +1 more source

Anti‐Slip Material‐Based Strategies and Approaches

Advanced Materials Technologies, EarlyView.
This review highlights the principle mechanisms of slipping at the microscale, linking contact mechanics with a friction behavior model for surface interfaces. Main strategies to develop anti‐slip properties to the surfaces are discussed alongside standardized testing approaches.
Sogand Abbaspoor‐Zanjani, Carlo Antonini, Teresa Gatti, Mengjiao Wang   +3 more
wiley   +1 more source

Three-dimensional omnidirectional characterization methods of rock anisotropic wave velocity and acoustic emission location optimization

工程科学学报
Rock failure and instability have been key research topics in rock mechanics domestically and internationally. Numerous geotechnical disasters, such as rock bursts and slope instability, are associated with these phenomena. Acoustic emission detection is
Shengjun MIAO, Wenxuan YU, Mingchun LIANG, Pengjin YANG, Conghao LI, Zejing LIU   +5 more
doaj   +1 more source

Accumulation by urban dispossession: struggles over urban space in Accra, Ghana

, 2016
Despite the growing recognition of the utility of Marxist theories of primitive accumulation for understanding the current ‘neoliberal’ phase of capitalist development, there is a lack of in-­‐depth research on the particular dynamics that ...
T. Gillespie
semanticscholar   +1 more source

Radiative Cooling by Green(er) Solvents‐Upcycled Polyvinyl Chloride From Drug Blisters Waste

Advanced Optical Materials, EarlyView.
This study explores upcycling poly(vinyl chloride) (PVC) from used pharmaceutical blisters into sustainable radiative cooling materials. Using solvent separation and membrane fabrication, PVC was converted into white membranes paired with aluminum foil.
Andrea Lanfranchi, Paola Lova, Davide Comoretto   +2 more
wiley   +1 more source