Avalanches and failures in bio-stimulated soils DOI
Yang Xiao, Bingyang Wu, Xiang Jiang

et al.

Acta Geotechnica, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 12, 2024

Language: Английский

Avalanches and Fractures in Biotreated Calcareous Sands DOI
Yang Xiao, Bingyang Wu, Xiang Jiang

et al.

International Journal of Geomechanics, Journal Year: 2024, Volume and Issue: 24(5)

Published: Feb. 22, 2024

Language: Английский

Citations

3
Psychrophiles to control ice-water phase changes in frost-susceptible soils DOI Creative Commons
Rashed Rahman, Tejo V. Bheemasetti, Tanvi Govil

et al.

Scientific Reports, Journal Year: 2024, Volume and Issue: 14(1)

Published: Jan. 4, 2024

Abstract The phase changes of soil water or porous media have a crucial influence on the performance natural and man-made infrastructures in cold regions. While various methods been explored to address impacts frost-action arising from these changes, conventional approaches often rely chemicals, mechanical techniques, reuse waste materials, which exhibit certain limitations environmental concerns. In contrast, organisms produce ice-binding proteins (IBPs) antifreeze (AFPs) adapt low temperatures, can inhibit ice crystal growth by lowering freezing point preventing crystallization without need for external intervention. This study explores potential three psychrophilic microbes: Sporosarcina psychrophile , globispora Polaromonas hydrogenivorans induce non-equilibrium depression thermal hysteresis order control lens frost-susceptible soils. We hypothesize that AFPs produced psychrophiles will alter profiles microbes, concentration released extracellular solution, properties protein-mixed soils are monitored at an interval days. controlled showed − 4.59 °C 4.62 °C, whereas protein-treated maximum 8.54 7.71 °C. Interestingly, except sample, all samples were thawed negative temperature (minimum recorded 0.85 °C). Further analysis treated compared mixed freeze (1.25 vs. 0.51 °C) thaw (2.75 1.72 extensive gap. thawing gap is difference between beginning core formation completed frozen, selected different incubation Overall, this presents novel bio-mediated approach using microbes

Language: Английский

Citations

3
Strength and Kaolin Nucleation in Biotreated Coarse Sand DOI
Yang Xiao, Guoliang Ma, Xiang He

et al.

International Journal of Geomechanics, Journal Year: 2024, Volume and Issue: 24(5)

Published: Feb. 20, 2024

Language: Английский

Citations

2
Strengths and Infinite Slope Stability of Unsaturated Soils DOI
Yang Xiao, Shuang Liu, Huanran Wu

et al.

International Journal of Geomechanics, Journal Year: 2023, Volume and Issue: 23(12)

Published: Oct. 12, 2023

Shallow landslides often occur in unsaturated soil slopes under seepage conditions. The shear strength of soils is one the key factors evaluating stability these slopes. Due to high nonlinearity envelope soils, common criteria cannot fully capture characteristics all soils. Based on effective stress with a matric suction, power-type criterion was proposed for various from literature studies. In addition, performance better than that two commonly used modeling test data Furthermore, applied analytically assess factor safety infinite slope steady condition by considering effect grain size and porosity.

Language: Английский

Citations

5
The impact of Microbially Induced Calcite Precipitation (MICP) on sand internal erosion resistance: A microfluidic study DOI

Kaifang Li,

Yuze Wang

Transportation Geotechnics, Journal Year: 2024, Volume and Issue: unknown, P. 101404 - 101404

Published: Oct. 1, 2024

Language: Английский

Citations

1
Microfluidics for studying the deep underground biosphere: from applications to fundamentals DOI Creative Commons
Sandy Morais,

Emeline Vidal,

Anaïs Cario

et al.

FEMS Microbiology Ecology, Journal Year: 2024, Volume and Issue: 100(12)

Published: Nov. 14, 2024

Abstract In this review, selected examples are presented to demonstrate how microfluidic approaches can be utilized for investigating microbial life from deep geological environments, both practical and fundamental perspectives. Beginning with the definition of underground biosphere conventional experimental techniques employed these studies, use systems accessing critical parameters in environments at microscale is subsequently addressed (high pressure, high temperature, low volume). Microfluidics simulate a range environmental conditions on chip, enabling rapid comprehensive studies behavior interactions subsurface ecosystems, such as simulations porous systems, among microbes/microbes/minerals, gradient cultivation. Transparent microreactors allow real-time, noninvasive analysis activities (microscopy, Raman spectroscopy, FTIR microspectroscopy, etc.), providing detailed insights into biogeochemical processes facilitating pore-scale analysis. Finally, current challenges opportunities expand methodologies studying monitoring real time under discussed.

Language: Английский

Citations

1
Microfluidic chips for microbially induced calcium carbonate precipitation: Advantages, challenges, and insights DOI Open Access
Yuze Wang, Qinghua Wu, Hongyu Chen

et al.

IOP Conference Series Earth and Environmental Science, Journal Year: 2024, Volume and Issue: 1337(1), P. 012039 - 012039

Published: May 1, 2024

Abstract Microbially induced calcium carbonate precipitation (MICP) has garnered significant attention as a biomineralization process with diverse applications spanning from construction to environmental remediation. To propel MICP research and deepen our comprehension of mechanisms, microfluidic chips have emerged potent tools offering precise control over parameters real-time observations. Herein, we explore the benefits challenges associated employing platform for investigating MICP. The advantages lie in their capacity create controlled microenvironments conducive emulating specific conditions crucial high-throughput nature these devices accelerates experimentation by facilitating simultaneous testing various microbial strains nutrient compositions. Throughout process, observations were made on behaviors both bacterial cells CaCO 3 cementation. inherent reduction reagent consumption offered microfluidics is cost-effective environmentally friendly. However, scaling up microscale findings practical necessitates careful consideration. Fully replicating three-dimensional complexity heterogeneous structures soil matrix, which influence behavior, mineral distribution, overall dynamics, using remains challenging. Additionally, certain complexities, including macroscopic components such organic matter particle types, significantly affect activities patterns, may be difficult replicate setups. stand invaluable advancing research. By addressing disadvantages outlined here, researchers can harness capabilities systems unravel intricacies MICP, ultimately bridging gap between fundamental understanding real-world applications.

Language: Английский

Citations

0
Effect of Fe3+ ions on the improvement of mechanical properties of MICP-reinforced calcareous sand DOI
Renjie Wei,

Jin Zhu,

Jie Peng

et al.

Research Square (Research Square), Journal Year: 2024, Volume and Issue: unknown

Published: June 28, 2024

Abstract Reinforcement of calcareous sands based on microbial induced calcium carbonate precipitation (MICP) method has become a hot research topic in recent years. However, the disadvantage MICP is that desired effect improvement can only be achieved by multiple treatments cementing solution. In order to enhance efficiency reinforcing sands, an appropriate amount iron ions was added solution, followed solution tests and sand column assess reinforcement through generation, UCS permeability coefficient. The results show change morphology size test; test, when were could reach up 2832.63 kPa after five injections, conventional test group under same conditions 185.5 kPa, coefficient reduced two orders magnitude compared with untreated sand. Iron did not increase but changed distribution pattern carbonate, thus increasing strength decreasing

Language: Английский

Citations

0
Food quality evaluation using lab-on-a-chip DOI

Abhishek Futane,

Vigneswaran Narayanamurthy, Baranitharan Ethiraj

et al.

Elsevier eBooks, Journal Year: 2024, Volume and Issue: unknown, P. 219 - 234

Published: Nov. 29, 2024

Language: Английский

Citations

0
Avalanches and failures in bio-stimulated soils DOI
Yang Xiao, Bingyang Wu, Xiang Jiang

et al.

Acta Geotechnica, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 12, 2024

Language: Английский

Citations

0