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1. Theoretical Analysis of Pile Tip and Pile Side Compaction Grouting and Grout Diffusion Height Considering Unloading Effect NSTL国家科技图书文献中心

Jiaqi Zhang |  Chunfeng Zhao... -  《International journal of geomechanics》 - 2025,25(3) - 1.1~1.16 - 共16页

摘要: cylindrical and spherical cavity reverse expansion model to |  simulate the formation of compaction grouting bodies and |  grout diffusion along pile shafts. Stress field |  displacement field analysis utilizes the nonassociated |  expression for cylindrical cavity reverse expansion with
关键词: Bored pile |  Compaction grouting |  Cavity reverse expansion |  Grout diffusion |  Ultimate grouting pressure |  Soil unloading

2. A novel geodetic approach for determination the marine internal gravity: The "seawater layer" method NSTL国家科技图书文献中心

Ni, Ganghua |  Wang, Zhengtao... -  《Journal of Applied Geophysics》 - 2025,233 - 共8页

摘要:. The internal gravity field of the ocean is important |  the internal gravity field of the ocean is a problem |  and the difference RMS is 4.06mGal at the depth of |  the construction of marine science and technology |  physical geodesy mainly focuses on the solution of the
关键词: Internal gravity field of the ocean |  The South China Sea |  The " seawater layer" method

3. Split TMR-eddy current sensor monitoring of fatigue cracks in the inner layers of structures NSTL国家科技图书文献中心

Ping, Chengjie |  Chen, Tao... -  《Measurement》 - 2025,252 - 117338.1~117338.13 - 共13页

摘要: sensor can monitor the expansion of inner layer fatigue |  surface. For inner cracks of 2 mm depth, the sensor can |  cracks of the multi-layer structure on the aircraft in |  proposed in this work. With more turns of excitation |  coils to obtain a stronger initial magnetic field, the
关键词: SHM |  Structural cracks |  Eddy currents |  TMR sensors |  Fatigue testing

4. Model test study of soil grouting effect on shield tunnel longitudinal structural behavior NSTL国家科技图书文献中心

Hua, Yu-shan |  Zhang, Dong-ming... -  《Engineering Geology》 - 2025,347 - 107912~ - 共13页

摘要: direction of the slurry vein. Reducing burial depth |  worldwide. However, the effectiveness of grouting on |  experience and field detection. In this study, a self |  series of tests investigating soil and structural | , including burial depth, grouting volume and times, and
关键词: Soil grouting |  Model test |  Structural behavior |  Joint deformation |  Shield tunnel

5. Expanding scales: Achieving prediction of van Genuchten model hydraulic parameters in deep profiles by incorporating broad in situ soil information in pedotransfer functions NSTL国家科技图书文献中心

Tong, Yongping |  Wang, Yunqiang... -  《Journal of Hydrology》 - 2025,656 - 共13页

摘要: support the expansion of deep soil hydrological research |  nature of soil hydrological processes and increasing |  importance of deep soil water cycling under global change | . Therefore, we conducted a field sampling at 475 sites up |  to 5 m depth across YRB, identifying the factors
关键词: Deep soil profile |  Soil hydraulic parameters |  Pedotransfer functions |  Spatial dependence |  Yellow River Basin

6. Increased megafauna stranding risk from sand mining: Lessons from the Yangtze finless porpoise NSTL国家科技图书文献中心

Wang, Ruilong |  Li, Qiyue... -  《Biological Conservation》 - 2025,306 - 共9页

摘要: with eight field surveys of the megafauna, Yangtze | ); whereas the expansion of sand traps attracts porpoises | , under extreme dry events, the expansion rate of sand |  of remote sensing data on sand dredging activities |  impacts of sand mining. Our findings revealed that high
关键词: Sand mining |  Freshwater ecosystem |  Endangered megafauna |  Stranding risk |  Extreme dry events

7. One-Way Wave-Equation Migration Based on Jacobi–Anger Expansion in Arbitrarily Lateral Varying Media NSTL国家科技图书文献中心

Daniel E. Revelo |  Reynam C. Pestana -  《IEEE Transactions on Geoscience and Remote Sensing》 - 2025,63 - 1~10 - 共10页

摘要:Seismic depth migration by downward |  waves, imaging large angles, and stability of the one |  at each lateral point of the grid, difficulties |  affordable approach to the one-way wave-equation depth |  the issue of accurately constructing the
关键词: Propagation |  Jacobian matrices |  Extrapolation |  Imaging |  Accuracy |  Taylor series |  Media |  Finite difference methods |  Filtering theory |  Approximation algorithms

8. Magnetic-assisted laser shock peening of 7075-T6 aluminum alloy NSTL国家科技图书文献中心

Huang, Binghan |  Xu, Longjie... -  《Optics & Laser Technology》 - 2025,181(Pt.B) - 共13页

摘要: explore the influence of magnetic field on the peening |  exerted by the magnetic field on plasma expansion play a | , the target sample is placed in a magnetic field |  during laser shock peening. The effects of MA-LSP | , and a deeper hardened layer was produced. In-depth
关键词: Magnetic field |  Laser shock peening |  Aluminum alloy |  Microstructure |  Residual stress

9. Finite Element Analysis and Experiments on the interaction between pulsed laser and capillaries in skin tissue NSTL国家科技图书文献中心

Bingheng Sun |  Zhong Ren... -  《7th Optics Young Scientist Summit (OYSS 2024)》 -  Optics Young Scientist Summit - 2025, - 135200C.1~135200C.12 - 共12页

摘要: sequence of light absorption, thermal expansion, and | Photoacoustic imaging is a kind of rapidly |  diagnosis field. This technique merges the high contrast |  capabilities of optical imaging with the deep penetration and |  high resolution of acoustic imaging. In our work, to
关键词: Photoacoustic imaging |  Finite element analysis |  Capillaries |  Biological heat transfer |  Photoacoustic effect

10. Fully coupled thermal-structural-vibration characteristics of 3-axis machine tools with complex hybrid linear axis-spindle systems considering structural nonlinearities NSTL国家科技图书文献中心

Jin Hao |  Changyou Li... -  《Mechanical Systems & Signal Processing》 - 2025,224(Feb.) - 112103.1~112103.66 - 共66页 - 被引量:1

摘要: influence of multi-field coupling on regenerative chatter | For machine tools composed of functional |  model of the whole machine tool, considering the |  flexibility of the screw shaft, spindle, and joint |  the multi-field coupling and consider the moving
关键词: Machine tools |  Joints |  Thermal-structural-vibration model |  Milling dynamics |  Closed-loop iterative
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