Results 21 to 30 of about 66,614 (249)

Seismic response analysis of lateral uneven sites with soft-hard connected media

Yantu gongcheng xuebao, 2019
The lateral uneven site with soft-hard connected media is very common, and its seismic response under strong earthquakes has an important impact on the safety of engineering structures.
LIANG Jian-wen 1, 2, 3, WU Meng-tao 1, BA Zhen-ning 1, 2, 3
doaj   +1 more source

Analysis of Tread ICRs for Wheeled Skid-Steer Vehicles on Inclined Terrain

IEEE Access, 2023
The instantaneous centers of rotation (ICRs) for the two treads of skid-steer vehicles moving with low inertia on hard horizontal terrain almost remain with constant local coordinates, which allows to establish an equivalence with differential-drive ...
Jorge L. Martinez, Jesus Morales, Jesus M. Garcia, Alfonso Garcia-Cerezo   +3 more
doaj   +1 more source

Penetration Depth Investigation of L-Band and S-Band SAR Signals into Soils and Hard Ground Surfaces

Remote Sensing
Understanding the penetrability of synthetic aperture radar (SAR) signals into near-surface materials is a prerequisite for using SAR observations to infer subsurface physical properties. However, direct measurements of penetration depth under controlled
Guanxin Liu, Wei Peng, Xiaoli Ding, Haiqiang Fu, Jun Zhu, Rong Zhao, Yang Liu, Songbo Wu   +7 more
doaj   +1 more source

Ground Deformation of Shield Tunneling through Composite Strata in Coastal Areas

Buildings
In order to mitigate ground deformation during shield construction in both upper soft and lower hard strata of coastal areas, a numerical simulation was executed.
Xiong Wu, Jiangbo Xu, Shaowei Wang, Peng Sha, Zemin Han, Xinyu Chen, Sheng Shu, Wei Qiao, Xianglong Zeng   +8 more
doaj   +1 more source

Accuracy of cone beam computed tomography in measuring thicknesses of hard-tissue-mimicking material adjacent to different implant thread surfaces

Journal of Dental Sciences, 2019
Background/purpose: To evaluate the measurement accuracy of hard-tissue thicknesses adjacent to dental implants with different thread designs on images obtained from cone beam computed tomography (CBCT) using an in vitro model.
Ching-Yu Yen, Po-Jan Kuo, Chi-Yu Lin, Nancy Nie-Shiuh Chang, Hsiang-Yin Hsiao, Yu-Tang Chin, Chi-Chun Tsai, Sheng-Yang Lee   +7 more
doaj   +1 more source

ECD truing/dressing and cutting edge truncation of diamond grinding wheel and its processing of hard and brittle materials

Jin'gangshi yu moliao moju gongcheng, 2021
In order to study the effect of metal-bonded diamond grinding wheel cutting edge truncation on the surface morphology of hard and brittle materials, the cutting edge of SD600 metal-bonded diamond grinding wheel was first protruded from the metal bond ...
KANG Xijun, TAMAKI Junichi, AKIHIKO Kubo, QIU Yirui, HUANG Peng   +4 more
doaj  

Point-Source Decay of Ground-Motion Amplitudes at <10 km

The Seismic Record, 2023
The amplitudes and decay rate of ground motions from small to moderate earthquakes are important to the assessment of induced seismicity hazards and useful as input components to finite-fault models of larger events.
Gail M. Atkinson, Gisela Viegas
doaj   +1 more source

From mice to humans—divergent strategies for intestinal homeostasis and regeneration

FEBS Letters, EarlyView.
Recent advances such as organoid genome editing, xenotransplantation, imaging, and whole‐genome sequencing have enabled direct studies of human intestinal stem cells (ISCs). These studies reveal species‐specific features, including slower ISC proliferation, distinct injury responses, slower somatic mutation accumulation in humans, and an inverse ...
Keiko Ishikawa, Shinya Sugimoto, Toshiro Sato   +2 more
wiley   +1 more source

Mine earthquake prevention and control through ground fracturing in deep multi-layered thick roof

Meitan kexue jishu
The presence of multilayered thick and hard roof strata results in frequent mine tremors, significantly complicating prevention and control efforts and posing a formidable challenge to the safe and efficient operation of coal mines.Taking the multi-layer
Jianhong WU, Yongxue XIA, Taotao DU, Gang XU, Xufeng QIN, Jiaming GAO, Yanfei ZHU, Xuehui CHEN, Jinlong ZHOU   +8 more
doaj   +1 more source

Influence of Discontinuous Linear Deformation on the Values of Continuous Deformations of a Mining Area and a Building Induced by an Exploitation of Hard Coal Seam

Applied Sciences, 2023
In this article, the impact of a ground step on a residential building and a mining terrain has been presented. Influence of a discontinuous linear deformation by the changes of the inclination and curvatures’ values (continuous deformations) has been ...
Justyna Orwat
doaj   +1 more source