Lei Liu

ORCID: 0000-0003-0459-8970
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About
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Research Areas
  • High-pressure geophysics and materials
  • earthquake and tectonic studies
  • Geological and Geochemical Analysis
  • Earthquake Detection and Analysis
  • Crystal Structures and Properties
  • Seismic Waves and Analysis
  • High Entropy Alloys Studies
  • High-Temperature Coating Behaviors
  • Methane Hydrates and Related Phenomena
  • Tactile and Sensory Interactions
  • Seismic Imaging and Inversion Techniques
  • Geochemistry and Geologic Mapping
  • Hydrocarbon exploration and reservoir analysis
  • Glass properties and applications
  • Soil Mechanics and Vehicle Dynamics
  • Seismology and Earthquake Studies
  • Landslides and related hazards
  • Inorganic Fluorides and Related Compounds
  • Tunneling and Rock Mechanics
  • CO2 Sequestration and Geologic Interactions
  • Quantum, superfluid, helium dynamics
  • Radioactivity and Radon Measurements
  • Geophysics and Sensor Technology
  • Additive Manufacturing Materials and Processes
  • Advanced materials and composites

Aviation General Hospital
2025

Guilin University of Technology
2016-2024

China Earthquake Administration
2015-2024

Huazhong University of Science and Technology
2024

Chongqing University of Technology
2023

Heilongjiang Earthquake Agency
2023

Chinese Academy of Surveying and Mapping
2023

Xinjiang Institute of Ecology and Geography
2023

Northwest Normal University
2021

China National Offshore Oil Corporation (China)
2020-2021

Abstract Knowledge of carbonate compounds under high pressure inside Earth is key to understanding the internal structure Earth, deep carbon cycle and major geological events. Here we use first-principles simulations calculate elasticity CaC 2 O 5 -minerals with different symmetries pressure. Our calculations show that represent a group low-density low-seismic-wave velocity mantle minerals. Changes in seismic wave caused by phase transformation - Cc I $$\bar{4}$$ <mml:math...

10.1038/s41467-024-44925-9 article EN cc-by Nature Communications 2024-01-25

On May 21, 2021, the M7.3 Maduo earthquake occurred within Bayan Har Block, one of most seismically active regions in Tibetan Plateau. This aroused attention to seismic hazards this block. Understanding stress transfer adjacent faults is important for assessing hazards. In study, based on elastic dislocation theory and a multi-layered lithospheric model, we calculate Coulomb failure changes caused by event major identify segments that experienced significant increases stress. Our preliminary...

10.1016/j.nhres.2021.06.003 article EN cc-by-nc-nd Natural Hazards Research 2021-06-01

3D printing technology has gained popularity in fabricating high-entropy alloys (HEAs) due to its inherent design adaptability and the capacity create distinctive structural features. However, field of 3D-printed HEAs faced substantial challenges, primarily stemming from a narrow processing window unsatisfactory mechanical properties. This study unveils novel Ni40Co18Cr18Fe14Al5Ti5 HEA, suitable for selective laser melting (SLM) technology, showcasing broad outstanding The SLM-produced HEA...

10.1016/j.matdes.2024.112754 article EN cc-by-nc-nd Materials & Design 2024-02-13

The spatio-temporal variations of soil gas in the seismic fault zone produced by 12 May 2008 Wenchuan Ms 8.0 earthquake were investigated based on field measurements concentrations after main shock. Concentrations He, H2, CO2, CH4, O2, N2, Rn, and Hg measured at eight short profiles across rupture June December July 2009. Soil-gas more than 800 sampling sites obtained. data showed that magnitudes He H2 anomalies three surveys declined significantly with decreasing strength aftershocks time....

10.1186/1467-4866-11-5 article EN cc-by Geochemical Transactions 2010-12-01

Industry applications of the current cryogenic high entropy alloys (HEAs) are limited by their prohibitive costs, relatively low yield strength and unknown corrosion resistance. Here, we present a cost-effective facile approach to produce HEAs with lower cost, exceptional mechanical properties The key is design Fe35Ni35Cr20Mo5Al5 HEA introduce ultrafine microstructure (UFM), including grains (∼693 nm), density annealing twins nanoprecipitates, into alloy manipulating concurrent precipitation...

10.1016/j.msea.2023.145408 article EN cc-by Materials Science and Engineering A 2023-07-04

To compare the prognosis of restrictive fluid resuscitation (RFR) versus liberal (LFR) in patients with septic shock. A retrospective analysis was conducted using clinical data from 82 shock treated Intensive Care Unit Aviation General Hospital January 2021 to December 2023. Patients were divided into two groups: LFR group (n=41) and RFR (n=41), based on strategy used. Both groups demonstrated significant reductions heart rate (HR) increases mean arterial pressure (MAP) central venous (CVP)...

10.62347/pgbb6148 article EN American Journal of Translational Research 2025-01-01

The study of aimed movements has a long history, starting at least as far back 1899 when Wood-worth proposed two-component model in which are broken into an initial ballistic phase and additional control phase. In this paper, we use Wood-worth's for experimentally comparing the real world with those virtual environment. Trajectories from have been collected compared to trajectories taken From this, show that significant temporal differences arise both phases, but difference is much larger...

10.1109/vr.2009.4811026 article EN Proceedings of the IEEE Virtual Reality Annual International Symposium 2009-03-01

Numerous alloying elements can improve the mechanical properties of NbMoTaW refractory high-entropy alloys (RHEAs), but relationship between different and changes in microstructure RHEAs is ambiguous. The first principles based on density functional theory are used to calculate lattice parameters, electronic properties, elastic NbMoTaW-based reveal with same period or subgroup. melting point, constant, mass controlled by such as Cr, V, Ti, Zr, Hf. Valence electron concentration (VEC) a key...

10.1063/5.0038405 article EN cc-by AIP Advances 2021-02-01

The selection of grinding media significantly impacts the comminution ores, affecting resulting liberation degree and quality. This is particularly impactful for granite pegmatite-type quartz. Given how mineral influenced by various factors, force exerted medium affects particle size distribution behavior minerals. Accordingly, in this study we investigate effects different on breakage characteristics muscovite quartz, focusing also quartz flotation. Analysis scanning electron microscope...

10.20944/preprints202505.0660.v1 preprint EN 2025-05-09

Urban excavation is an indispensable process for many construction activities such as road paving, house building, and pipe rehabilitation. However, the everincreasing complexity of underground utilities (e.g., water mains, gas lines, sewage pipes) in urban environments challenges safety excavation, posing tremendous risks potential collision damage accidents. By obtaining real-time information high-fidelity simulation to evaluate risks, digital twin (DT) has unexplored improve (UES). This...

10.1061/jccee5.cpeng-5354 article EN Journal of Computing in Civil Engineering 2023-07-04

The structural stability of high-entropy alloys (HEAs) is closely related to their mechanical properties. precise control the component content a key step toward understanding and further determining In this study, first-principle calculations were performed investigate effects different contents each on properties Co-Cr-Fe-Ni HEAs based supercell model. constructed single face-centered cubic (FCC) solid solution. Elemental components have clear effect structure performance; Cr Fe elements...

10.3390/app11062832 article EN cc-by Applied Sciences 2021-03-22

Hydrogeochemistry of 32 hot springs in the western Sichuan Province after Wenchuan<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" id="M2"><mml:mrow><mml:msub><mml:mrow><mml:mi>M</mml:mi></mml:mrow><mml:mrow><mml:mi>S</mml:mi></mml:mrow></mml:msub></mml:mrow></mml:math>8.0 earthquake was investigated by analyzing concentrations cation and anion isotopic compositions hydrogen oxygen. The water samples were collected four times from June 2008 to April 2010. Hydrogeochemical data...

10.1155/2014/901432 article EN cc-by The Scientific World JOURNAL 2014-01-01

The fluid inclusions in mantle rocks and melt indicated that a large amount of CO2 exists the deep earth, which is great significance for understanding carbon cycle composition mantle. However, it was also suggested carbonate minerals were likely to be main host carbon. At same time, distribution behavior still remain puzzle. In this paper, adsorption occurrence characteristics supercritical magnesite (MgCO3) pores studied by Grand Canonical Monte Carlo method (GCMC) under different...

10.1016/j.gsf.2020.06.001 article EN cc-by-nc-nd Geoscience Frontiers 2020-07-17
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