Results 11 to 20 of about 915,660 (303)

Unexpected Stability of Lentivirus Upon Freeze-Thaw Cycles

Journal of Gastroenterology & Endoscopy, 2020
Characterizing virus stability at real-world conditions is crucial for infectious disease mitigation.It is widely believed that virus are severely affected by repeated freeze-thaw cycles. However, no studies have been conducted, to our knowledge, directly detailing this issue.
Shaoshuai Meng, Wanting Yu
openaire   +3 more sources

Study on the Dynamic Properties of Concrete under Freeze-Thaw Cycles and CT Fine View Damage

Shock and Vibration, 2023
In order to study the dynamic mechanical properties of concrete under freeze-thaw cycles, uniaxial impact compression tests were conducted on concrete specimens with different number of freeze-thaw cycles (0, 25, 50, 75, and 100) using a 50 mm diameter ...
Liangting Wang, Zhishan Zheng, Zheng Xiahou, Xijian Chao, Ming Xia   +4 more
doaj   +2 more sources

Research on damage and degradation of coal-bearing sandstone under freeze-thaw cycles [PDF]

Frontiers in Earth Science
Comprehending the effect of freeze-thaw cycles on the damage and degradation of coal-bearing sandstones is crucial for the end-wall slope stability of open-pit mines in cold areas.
Yiwen Mao, Ming Li, Peng Wu, Shuai Guo, Fuqiang Zhu   +4 more
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Dynamic Mechanical Response and Dissipated Energy Analysis of Sandstone under Freeze-Thaw Cycles

Geofluids, 2021
Based on the sandstone from the slope of Baorixile open-pit mining area in Hulunbuir City, Inner Mongolia, the dynamic uniaxial compression test of sandstone with different freeze-thaw cycles has been carried out by Split Hopkinson Pressure Bar test ...
Ke Man, Zongxu Liu, Zhifei Song, Xiaoli Liu   +3 more
doaj   +2 more sources

Slip‐resistant connections subjected to freeze‐thaw cycles [PDF]

Steel Construction
AbstractThere are many examples of steel structures subjected to severe environmental conditions with bolted connections directly exposed to climatic agents such as steel bridges, mining transfer towers, wind towers etc. In this experimental research, non‐slip joints with M16 and M20 bolts have been studied.
Alfonso Fuente‐García, Miguel Ángel Serrano‐López, Carlos López‐Colina, Fernando López‐Gayarre   +3 more
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Experimental Study on Deformation and Damage Evolution of Cracked Red Sandstone Under Freeze–Thaw Cycles

Applied Sciences
Cracked rock masses in cold regions are subjected to freeze–thaw cycles over extended periods, resulting in freeze–thaw deformation. The combined effects of freeze–thaw cycling and the depth of cracks significantly influence the stability and durability ...
Xize Han, Guangchen Sun, Helin Fu, Chao Tan, Zailong Huang, Peng Yin, Qishu Zhang, Wenchen Fan, Shuiping Yin   +8 more
doaj   +2 more sources

Arctic soil CO₂ release during freeze-thaw cycles modulated by silicon and calcium [PDF]

, 2023
Arctic soils are the largest pool of soil organic carbon worldwide. Temperatures in the Arctic have risen faster than the global average during the last decades, decreasing annual freezing days and increasing the number of freeze-thaw cycles (temperature
Jürgen Augustin, Jörg Schaller, Hoffmann, M., Schaller, J., Göckede, Mathias, Stimmler, Peter, Schaller, Jörg, Stimmler, P., Lacroix, F., Fabrice Lacroix, Peter Stimmler, Göckede, M., Augustin, Jürgen, Hoffmann, Mathias, Mathias Göckede, Mathias Hoffmann, Augustin, J., Lacroix, Fabrice   +17 more
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Triaxial creep properties and model of red sandstone under freeze-thaw environment

Yantu gongcheng xuebao, 2021
In order to study the time-effectiveness mechanical properties of rock mass engineering in cold regions under the coupling of freeze-thaw cycles and long-term loads, the triaxial multi-level loading and unloading creep tests are carried out on saturated ...
SONG Yong-jun , ZHANG Lei-tao , REN Jian-xi , CHEN Jia-xing , CHE Yong-xin , YANG Hui-min , BI Ran
doaj   +1 more source

The Impact of Freeze‐Thaw History on Soil Carbon Response to Experimental Freeze‐Thaw Cycles

Journal of Geophysical Research: Biogeosciences, 2022
AbstractFreeze‐thaw is a disturbance process in cold regions where permafrost soils are becoming vulnerable to temperature fluctuations above 0°C. Freeze‐thaw alters soil physical and biogeochemical properties with implications for carbon persistence and emissions in Arctic landscapes.
Erin C. Rooney, Vanessa L. Bailey, Kaizad F. Patel, Angela R. Possinger, Adrian C. Gallo, Maya Bergmann, Michael SanClements, Rebecca A. Lybrand   +7 more
openaire   +1 more source

Freeze-thaw damage assessment of engineered cementitious composites using the electrochemical impedance spectroscopy method

Materials & Design, 2023
The mechanical properties of engineered cementitious composites (ECC) in service in cold regions can be significantly degraded by periodic freezing and thawing.
Ru Bai, Shuguang Liu, Liqiang Yin, Changwang Yan, Ji Zhou, Lihe Lu, Lin Li   +6 more
doaj   +1 more source