Results 21 to 30 of about 2,038,939 (300)

Analysis of the effect of rock salt on grout's freeze-thaw strength with the Taguchi Method

open access: yes, 2022
Grouting is the injection of mixtures with high pressure into the voids, cracks, or pores that may exist in the soil. In the case of rock salt being present in the formations where the grouting is performed, studies on the effects of this salt presence ...
Ayık Kılıç, Elif   +2 more
core   +1 more source

Freeze–thaw cycles as drivers of complex ribozyme assembly [PDF]

open access: yesNature Chemistry, 2015
The emergence of an RNA catalyst capable of self-replication is considered a key transition in the origin of life. However, how such replicase ribozymes emerged from the pools of short RNA oligomers arising from prebiotic chemistry and non-enzymatic replication is unclear.
Hannes Mutschler   +2 more
openaire   +2 more sources

Accelerating DNA computing via freeze-thaw cycling

open access: yesScience Advances, 2023
DNA computing harnesses the immense potential of DNA molecules to enable sophisticated and transformative computational processes but is hindered by low computing speed. Here, we propose freeze-thaw cycling as a simple yet powerful method for high-speed DNA computing without complex procedures.
Yun Zhu   +5 more
openaire   +2 more sources

Effect of the curing conditions of concrete on the behaviour under freeze-thaw cycles [PDF]

open access: yes, 2011
The aim of this work is to relate the curing conditions of concrete and the addition of an air-entraining admixture with the damage caused by freeze–thaw cycles. In countries with a continental climate, the curing of concrete in summer is performed under
Fernández Gómez, Jaime Antonio   +3 more
core   +1 more source

Research on Fractal Characteristics and Energy Dissipation of Concrete Suffered Freeze-Thaw Cycle Action and Impact Loading. [PDF]

open access: yesMaterials (Basel), 2019
In order to study the fractal characteristics and energy dissipation of concrete suffered freeze-thaw cycle actions and impact loading, C35 concrete was taken as the research object in this paper, and freeze-thaw cycle tests were carried out with a ...
Li Y, Zhai Y, Liu X, Liang W.
europepmc   +2 more sources

Responses of feldspathic sandstone and sand-reconstituted soil C and N to freeze–thaw cycles

open access: yesOpen Chemistry, 2023
The Mu Us Desert in China is significantly affected by seasonal freeze–thaw processes. In order to evaluate the adaptation potential of reconstituted soil with different proportions of feldspathic sandstone and sand to extreme environment, the laboratory
Zhang Haiou   +4 more
doaj   +1 more source

Compressive and tensile properties of three fiber-lime-soils under freeze-thaw cycle

open access: yesRock and Soil Mechanics, 2022
Generally, synthetic fiber, mineral fiber and plant fiber are added into soil to enhance the strength and deformation resistance of soil. The unconfined compressive test and splitting tensile test of three fiber-lime-soils under freeze-thaw cycle were ...
WEI Li, CHAI Shou-xi, ZHANG Lin, LI Yao
doaj   +1 more source

The Effect of Freeze/Thaw Cycles on Reproducibility of Metabolic Profiling of Marine Microalgal Extracts Using Direct Infusion High-Resolution Mass Spectrometry (HR-MS)

open access: yesMolecules, 2014
During normal sample preparation, storage in freezers and subsequent freeze/thaw cycles are commonly introduced. The effect of freeze/thaw cycles on the metabolic profiling of microalgal extracts using HR-MS was investigated.
Hans Chr. Eilertsen   +5 more
doaj   +1 more source

Mechanical Properties and Freeze–Thaw Durability of Basalt Fiber Reactive Powder Concrete

open access: yesApplied Sciences, 2020
Basalt fiber has a great advantage on the mechanical properties and durability of reactive powder concrete (RPC) because of its superior mechanical properties and chemical corrosion resistance. In this paper, basalt fiber was adopted to modified RPC, and
Wenjun Li   +5 more
doaj   +1 more source

Freeze-Thaw Cycles Enhance Decellularization of Large Tendons [PDF]

open access: yesTissue Engineering Part C: Methods, 2013
The use of decellularized tendon tissue as a scaffold for tendon tissue engineering provides great opportunities for future clinical and current research applications. The aim of this study was to assess the effect of repetitive freeze-thaw cycles and two different detergents, t-octyl-phenoxypolyethoxyethanol (Triton X-100) and sodium dodecyl sulfate ...
Janina, Burk   +7 more
openaire   +2 more sources

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