Results 81 to 90 of about 2,365,376 (295)

Shaft resistance of driven cast-in-situ piles in sand

Canadian Geotechnical Journal, 2016
Driven cast-in-situ (DCIS) piles are classified as a large displacement pile, despite sharing certain aspects of their construction with replacement pile types. However, there are relatively few case histories of load tests on DCIS piles in the literature to verify the assumption that they behave as large displacement piles.
Flynn, Kevin N., McCabe, Bryan A.
openaire   +2 more sources

Single‐Sensor Vibration Sensing in Anisotropic Composites Enabled by Disordered Metasurfaces

Advanced Science, EarlyView.
This work develops a single‐sensor vibration sensing (SSVS) framework that integrates disordered metasurfaces with compressive sensing. Comprehensive numerical and experimental validations demonstrate that, by manipulating anisotropic guided wave propagation through metasurfaces, the proposed SSVS framework enables high‐fidelity multi‐source vibration ...
Jianjie Zhang, Lanhe Xu, Zhongzheng Zhang, Yongbo Li, Eric Li, Asoke K. Nandi, Bing Li   +6 more
wiley   +1 more source

Analysis of Bearing Characteristics of the Static Drill Rooted Nodular Piles Under Tension and Compression

工程科学与技术, 2018
The static drill rooted nodular pile is a kind of composite pile foundation by inserting the prefabricated nodular pile into the cemented soil. The FEM models of the PGPN (pre-bored grouting planted nodular) pile under compression and tension were ...
Xiaonan GONG, Cai XIE, Jiahan SHAO, Jiaming SHU   +3 more
doaj  

An Evaluation of the Shaft Resistance of Piles Embedded in Gneissic Rock

Soils and Rocks, 2017
In the design of piles drilled in rock, the following questions arise: (i) at what point of the soil/weathered rock/sound rock profile should the pile socket be designed; (ii) is the contribution of residual soil to be disregarded; (iii) how much consideration should be given to the pile boring method (rotary or hammering).
Erisvaldo L. Juvencio, Francisco R. Lopes, Anna L.L.S. Nunes   +2 more
openaire   +1 more source

SHAFT RESISTANCE OF PILES CLOSE TO BACKFILLED SAND COLUMNS

International Journal of GEOMATE, 2021
In most reconstructions, existing old pile foundations are removed to construct new foundations. After removing the existing pile, the hole is backfilled, but there are issues such as different conditions from the surrounding ground. We report axial compressive loading model tests to investigate the shaft resistance of piles close to backfilled sand ...
openaire   +1 more source

F‐Type Pyocin Versus Phage λ Tail: Conserved Hub, Divergent Fibers

Advanced Science, EarlyView.
Near‐atomic cryo‐EM structures of a Gram‐negative F‐type pyocin reveal a conserved tail tip architecture shared with bacteriophage λ together with a previously unrecognized side‐fiber attachment mode. These findings provide new insight into tailocin assembly and host recognition and establish a structural framework for engineering precision ...
Zhiwei Gu, Yufan Xie, Lanxin Wang, Luyan Ma, Xiaofei Ge, Jiawei Wang   +5 more
wiley   +1 more source

Numerical evaluation of effects of nonlinear lateral pile vibrations on nonlinear axial response of pile shaft [PDF]

, 2013
Axial and lateral dynamic pile analyses are generally handled separately; and consequently, dynamic soil reactions are assumed to be uncoupled. However, pure loading is rarely encountered as combined loading occurs in many situations (offshore piles ...
Holeyman, Alain, Alain Holeyman, Malek Allani, Allani, Malek   +3 more
core   +1 more source

Single‐Cell Profiling Reveals a Protective WNT5A‐ATF3‐FOSB Signaling Axis in Hair Follicle Stem Cells During Androgenetic Alopecia

Advanced Science, EarlyView.
Androgenetic alopecia (AGA) is a common form of hair loss with limited treatment options. Silencing of WNT5A signaling, which is widely known as the trigger of the ncWNT signaling pathway, happens in hair follicle stem cells from balding areas. It leads to downregulation of ATF3 and its target FOSB.
Ruiyu Luo, Ke Fang, Changjiang Zhao, Jiachao Xiong, Yuan Zhu, Mingyang Lu, He Yan, Zihan Li, Baojin Wu, Hua Jiang, Yufei Li   +10 more
wiley   +1 more source

Self‐Powered All‐in‐One Wearable Bioelectronics Driven by Pneumatic Energy Buffering of Daily Footsteps

Advanced Science, EarlyView.
A pneumatic energy‐buffering strategy transforms transient and intermittent footsteps into quasi‐continuous electrical energy for a self‐powered wearable biosensing platform. The footwear‐integrated air‐pumping harvester, combined with the rationally designed power‐management system, powers a wearable ankle PPG device with reduced motion artifacts ...
Ji‐Seok Kim, Tae Woog Kang, Hyunjoon Yoo, Jawon Ha, Yunuo Huang, Hee Han, Chi Won Ahn, Woon‐Hong Yeo, Il‐Kwon Oh   +8 more
wiley   +1 more source

Bearing Characteristics of Large-Diameter Pile Foundations Based on Loading Reaction Tests Using the Tension–Compression Anchor Method

Buildings
To clarify the bearing characteristics and load transfer mechanisms of long large-diameter pile foundations in dense silty fine sand strata within the middle and lower reaches of the Yellow River, a graded tension–compression anchor reaction loading test
Zhihui Zhang, Yifu Quan
doaj   +1 more source