Results 41 to 50 of about 6,160 (166)

Nonequilibrium Wet–Dry Cycling Acts as a Catalyst for Chemical Reactions

The Journal of Physical Chemistry B
Recent experimental studies suggest that wet-dry cycles and coexisting phases can each strongly alter chemical processes. The mechanisms of why and to which degree chemical processes are altered when subject to evaporation and condensation are unclear. To close this gap, we developed a theoretical framework for non-dilute chemical reactions subject to ...
Haugerud, Ivar Svalheim, Jaiswal, Pranay, Weber, Christoph A.   +2 more
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Reliability Study on FRP Composites Exposed to Wet-Dry Cycles [PDF]

Applied Sciences, 2018
Due to lack of research data on the rates of deterioration of FRP properties under a harsh environment exposure, it was pointed out in the design guidelines that the durability of FRP needs to be further developed. Therefore, in this study, 48 FRP samples were tested under wet-dry cycles exposure.
Hongjun Liang, Shan Li, Yiyan Lu, Ting Yang   +3 more
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A study of fissures evolution of the Neogene clay complexs under wetting and drying cycles

Shuiwen dizhi gongcheng dizhi, 2021
In the present investigation, laboratorial test is conducted to examine the evolution law of fissures of the Wuxiang clay complexs under wetting and drying cycles.
Wang REN, Jiading WANG, Xiaorui BIAN
doaj   +1 more source

Effect of Drying-Wetting Cycles on Engineering Properties of Expansive Soils Modified by Industrial Wastes

Advances in Materials Science and Engineering, 2020
The swelling properties of expansive soils can be reduced by the addition of modifiers. Nevertheless, the performance deterioration after modification occurs when weathering for a long term.
Chengfu Chu, Meihuang Zhan, Qi Feng, Dong Li, Long Xu, Fusheng Zha, Yongfeng Deng   +6 more
doaj   +1 more source

Experimental Study on the Triaxial Compression Properties of Coarse-Grained Filling Soil under Drying–Wetting Cycles

Geofluids, 2022
To explore the mechanical properties of coarse-grained filling soil in the hydrofluctuation belt of the Baihetan reservoir, a fast drying–wetting cycle method for large-scale triaxial tests was developed and a series of large-scale triaxial compression ...
Shuyi Li, Zhilei He, Peng Zhu, Longxi Mei, Shaojun Zeng, Siwei Wang   +5 more
doaj   +1 more source

Wet/dry cycle durability of polyphenylene ionomer membranes in PEFC

Journal of Power Sources Advances, 2021
The mechanical durability of our hydrocarbon polymer electrolyte membrane, poly(sulfophenylene quinquephenylene) (SPP-QP) or polyphenylene ionomer, was evaluated in wet/dry cycle tests in fuel cells according to the US-DOE protocol, where the effect of gas diffusion layers (hard or soft GDL) was investigated.
Toshiki Tanaka, Haruhiko Shintani, Yasushi Sugawara, Akihiro Masuda, Nobuyuki Sato, Makoto Uchida, Kenji Miyatake   +6 more
openaire   +2 more sources

Effect of wetting-drying cycles on mortar samples affected by DEF [PDF]

European Journal of Environmental and Civil Engineering, 2012
This article, which deals with the effect of wetting-drying (W-D) cycles on materials affected by delayed ettringite formation (DEF), has two main objectives. The first is to observe whether W-D cycles pre-damage samples, by using the replica technique. Scanning electron microscopy (SEM) observations of replicas show that W-D cycles lead to microcracks
Leklou, Ali-Nordine, Aubert, Jean-Emmanuel, Escadeillas, Gilles   +2 more
openaire   +3 more sources

Effect of Wetting-Drying Cycles on Swelling-Shrinkage Behavior and Microstructures of Tropical Residual Expansive Soil

International Journal of Technology
Expansive soil is one of the problematic soils that has swelling and shrinking behavior due to fluctuations in water content. So far, the potential content of Montmorillonite clay minerals, dry density, and water content are known to be factors that ...
Christy A. Putri, Widjojo A. Prakoso, Wiwik Rahayu, Agustino Zulys   +3 more
doaj   +1 more source

Triaxial shear behavior of basalt fiber reinforced loess under drying−wetting cycles

Rock and Soil Mechanics, 2022
In this paper, the digital image based triaxial shear test, computed tomography (CT) scanning test and scanning electron microscopy (SEM) test were employed to investigate triaxial shear behavior and microstructure evolution of basalt fiber reinforced ...
XU Jian, WU Zhi-peng, CHEN Hui
doaj   +1 more source

Wet-dry Cycling Delays the Gelation of Hyperbranched Polyesters: Implications to the Origin of Life [PDF]

Life, 2019
In extant biology, biopolymers perform multiple crucial functions. The biopolymers are synthesized by enzyme-controlled biosystems that would not have been available at the earliest stages of chemical evolution and consist of correctly sequenced and/or linked monomers.
openaire   +3 more sources