Results 81 to 90 of about 294,631 (304)

A Magneto‐Mechanically Activated Nerve Guidance Conduit Promotes Peripheral Nerve Regeneration via TIMP1‐Mediated Membrane Tension Transfer

Advanced Functional Materials, EarlyView.
This study presents a magneto‐mechanical strategy that incorporates FP@MSCs into an aligned PCL/GelMA nerve guidance conduit. Magnetic stimulation increases membrane tension in FP@MSCs, triggering cytoskeletal remodeling, Schwann cell‐like differentiation, and TIMP1 secretion. TIMP1 activates ITGB1/CD63–FAK signaling in NE‐4C cells, increasing membrane
Xinyu Zhu, Yumin Wu, Xiang Gao, Tianlu Wang, Wanting Jia, Xueying Mei, Huanzhong Ji, Zongxi Wu, Yujie Liang, Xiang Li, Kan Li, Jingyuan Li, Guangsen Zheng, Guiqing Liao, Siyong Gao   +14 more
wiley   +1 more source

CFD-DEM simulation of the motion law of magnetic flocs during waste slurry disposal in shield tunnel

Scientific Reports
The sustainable treatment and reuse of waste slurry in slurry shield construction have gained significant attention. This paper explores the application of magnetic flocculation technology for treating slurry.
Kaichen Ying, Yuxiang Xing, Wei Zhang, Xingfei Chen, Zhigang Yao, Yong Fang, Jian Cui, Lifeng Wei   +7 more
doaj   +1 more source

The use of exploratory tunnels as a tool for scheduling and cost estimation

Technological and Economic Development of Economy, 2007
Exploratory tunnels are commonly used for examining the geotechnical and structural aspects of proposed tunnel alignments. This paper explores the utilisation of exploratory tunnels as a project management tool for estimating the cost and duration of ...
Ahmed Abdallah
doaj   +1 more source

Tunnelling 4.0 – Construction‐related future trends

, 2018
The digitalisation of construction-related processes will increasingly penetrate the individual development phases of tunnel construction projects (design, construction and operation).
Tobias Bisenberger, Gerald Goger, Goger, Gerald, Bisenberger, Tobias   +3 more
core   +1 more source

Protein‐Nanoarchitectures for Low‐Field Intracellular Electro‐Immunomodulation

Advanced Functional Materials, EarlyView.
DHQ‐SDH‐mediated binding of AuNPs drives the formation of interconnected, chain‐like nanoarchitectures with enhanced electrical conductivity. These conductive assemblies undergo macrophage uptake and enable low‐field electrical stimulation, promoting M1‐to‐M2 phenotypic switching with decreased iNOS and increased CD206 expression. Such protein‐mediated
Viktoriya Pakharenko, Djanira Rodrigues Negrão, Tanmay Gupta, Robert Jeng, Otavio Augusto Titton Dias, Maia Jaffer‐Diaz, Dinesh Christendat, Mohini Sain   +7 more
wiley   +1 more source

Sub‐1 ms Optoelectronic Synapse Based on {ZnCdO/ZnO} Multilayer Structure for High‐Speed Neuromorphic Vision Systems

Advanced Functional Materials, EarlyView.
Eu‐doped {ZnCdO/ZnO} structures grown on Si are developed, showcasing dual‐functionality controlled by europium doping. While high europium concentration transforms the device into an ultrafast, self‐powered photodetector, low‐doped structures can be used as an optoelectronic synapse.
Igor Perlikowski, Eunika Zielony, Adrian Kaim, Ewa Przeździecka   +3 more
wiley   +1 more source

Alpha-Synuclein Aggregates Associated with Mitochondria in Tunnelling Nanotubes

, 2020
The interaction of α-synuclein with mitochondria in both typical and atypical Parkinson's disease is a critical component of degeneration. The mechanism of cell-to-cell propagation of pathological α-synuclein in synucleinopathies is unclear ...
Kovarova, Jaromira, Valdinocci, Dario, Neuzil, Jiri, Pountney, Dean L   +3 more
core   +1 more source

Hybrid Ferroelectric Tunnel Junctions with Intrinsic Nonlinearity and Self‐Rectification via Interfacial Reconstruction

Advanced Functional Materials, EarlyView.
Rapid thermal annealing reconstructs the BCFO/Nb:STO interface into an atomically thin reconstructed interfacial layer, which reshapes the tunneling barrier and converts a high‐TER ferroelectric tunnel junction into an intrinsically nonlinear, self‐rectifying device.
Hojin Lee, Joonbong Lee, Jinho Byun, Sang‐Hyeok Yang, A young Cho, Sangwoo Lee, Dae Haa Ryu, Hyunbin Chung, Hee Seo Yun, Moon Seop Choi, Yesul Choi, Sungkyun Park, Min‐Hyung Jung, Dongwon Lee, Yoon‐Uk Heo, Hu Young Jeong, Hongseok Kim, Shinhyeong Lee, Yunseok Kim, Young‐Min Kim, Jaekwang Lee, Taekjib Choi   +21 more
wiley   +1 more source

Compressive Cracking Behavior and Thresholds of Vesicular Basalts: Insights from Coupled Experimental and Numerical Modeling

Eng
Physical uniaxial compressive tests were conducted on high porosity vesicular basalt specimens in the lab. The main experimental mechanical parameters (i.e., peak strength and elastic constants) were used to calibrate numerical models in the 2-D PFC. Two
Dimitrios Papadomarkakis, Paraskevi Yiouta-Mitra, George Papantonopoulos, Pavlos Nomikos   +3 more
doaj   +1 more source

Tunnelling time and tunnelling dynamics [PDF]

, 2007
The concept of 'tunnelling time' in the context of quantum particle tunnelling is reviewed. Various suggestions of linking the tunnelling dynamics with a characteristic time (real or complex) like the phase time, barrier interaction time (bounce time ...
Bhattacharyya, S. P., Mondal, C. K., Maji, Kaushik   +2 more
core   +1 more source