Results 71 to 80 of about 2,727 (257)

State-of-the-Art Seismic Studies of Loess Tunnels in China

Advances in Civil Engineering
Large earthquakes occur frequently around the world. Due to the fragility of loess, the effects of seismic events on loess tunnel projects have received considerable in-depth research attention.
Dengke Li, Weigong Ma, Lanmin Wang, Weiwei Shao   +3 more
doaj   +1 more source

Determining the buried depth of mountain-adjacent tunnels in hard rock under complex geostress conditions

Shuiwen dizhi gongcheng dizhi
Under complex geological and geostress conditions, the design of mountain-adjacent tunnels in hard rock areas faces numerous challenges, particularly in determining the tunnel’s buried depth.
Yuping YAN, Jinhua WANG, Shihui DU, Yong HUANG, Wen ZHAO, Qingbo HU, Benliang LI, Jiming MEI   +7 more
doaj   +1 more source

Differential Tissue‐Coupled Powering for Battery‐Free Injectable Electroceuticals

Advanced Science, EarlyView.
A thread‐like injectable neural stimulator is powered through differential tissue‐coupled powering (DTCP), which harvests RF‐frequency tissue potentials with an elongated receiver while preserving a injectable cross‐section. The system integrates an ASIC, stimulation electrodes, and a portable transmitter, enabling wireless peripheral nerve stimulation,
Han Wu, Sultan Mahmud, Mali Halac, Asif Iftekhar Omi, Domenica Sofia Baez Rodas, Jeremiasz Dados, Chaojun Cheng, Anyu Jiang, Cameron Wallace, Anvi Singh, Erin Patrick, Baibhab Chatterjee, Shriya Srinivasan, Adam Khalifa   +13 more
wiley   +1 more source

Gestational Hypoxia Disrupts Medial Ganglionic Eminence Progenitor Dynamics and Interneuron Development in Schizophrenia

Advanced Science, EarlyView.
FES‐derived MGE spheroids exhibit progenitor‐stage alterations in developmental trajectory and hypoxia‐responsive transcriptional programs, followed by functional disruption. Gestational hypoxia recapitulates impaired progenitor proliferation, shortened cell‐cycle progression, interneuron developmental abnormalities, and schizophrenia‐like behaviors in
Peiyan Ni, Qiancheng Zhang, Youhui Jiang, Huiying Yao, Chuqing Zhou, Xiaoyi Tian, Shiyingnan Gao, Jun Zhao, Xinyi Ren, Naxin Xu, Mengshan Fu, Liansheng Zhao, Xueyu Qi, Xueli Yu, Wanjun Guo, Sangmi Chung, Fan Guo, Tao Li   +17 more
wiley   +1 more source

Preliminary Prediction of Temperature Field and Thermal Hazards in the Water Diversion Tunnel of the “Yellow River to Xining” Project

Applied Sciences
As tunnel engineering advances towards greater depths, larger scales, and longer distances, high rock temperatures and tunnel thermal damage frequently occur, constituting some of the main geological hazards faced by transportation, water conservancy ...
Hao Zhu, Yaru Wang, Wenjing Lin, Gaofan Yue, Zhining Liu, Feng Zhou, Lu Yang   +6 more
doaj   +1 more source

Battery‐Inspired Electrochemical Synapses for Neuromorphic Applications

Advanced Science, EarlyView.
Battery‐ion‐inspired synaptic devices integrate diverse electrolyte systems (solid, ion‐gel, liquid) with transition metal oxides, two‐dimensional materials, and organic channels to regulate ion‐electron coupling. By tailoring ion transport and host interactions, these platforms enable controllable plasticity and energy‐efficient implementations for ...
Won Woo Lee, SeongCheol Jang, Wangmyung Choi, Jaewon Park, Jaehyun Hur, Hocheon Yoo, Hyun‐Suk Kim   +6 more
wiley   +1 more source

Dipolar Coupling Errors in Nuclear Spin Qubits

Advanced Science, EarlyView.
Multi‐nuclear spin registers of phosphorus‐atom qubits in silicon have demonstrated 99.99% single and >$>$99.9% two qubit gate fidelities. Despite nanometer separation, read‐out fidelities between individual nuclear spins within the register are not identical.
I. D. Thorvaldson, P. Macha, J. Reiner, S. H. Misha, Y. Chung, L. Kranz, D. Keith, S. Monir, D. Poulos, S. Sutherland, Y.‐L. Hsueh, B. Thorgrimsson, R. Rahman, J. G. Keizer, S. K. Gorman, M. Y. Simmons   +15 more
wiley   +1 more source

Analytical solution of viscoelastic displacement for surrounding rock of tunnel with arch crown based on complex variables method

工程科学与技术, 2015
:Creep property of surrounding rock is one of major factors which influence the long-term stability of tunnels. For the analytical solution of the stress and displacement in rocks around deep buried tunnel, the solution formulas only used for tunnel in ...
LIXINRUI, 谢红强
doaj  

Calculation method for rock pressure of deeply buried multi-arch tunnel without middle drift

Yantu gongcheng xuebao
Multi arch tunnels without central guide tunnels avoids the drawbacks of traditional multi arch tunnel construction processes such as complexity and frequent stress conversion.
ZHANG Jian1, 2 , SUN Weiyu1, 3, YAN Songhong1, 3 , WANG Yonggang2, WANG Wen2
doaj   +1 more source

Triple‐Level Content‐Addressable Vertical NAND Flash Memory

Advanced Science, EarlyView.
Commercial triple‐level‐cell V‐NAND flash memory is transformed into a compact content‐addressable memory by directly exploiting its eight threshold‐voltage states. A parity‐split search scheme preserves storage density while enabling reliable multi‐level and don't‐care matching. Parallel word‐line search delivers up to 24‐fold higher throughput and 54.
Sung‐Ho Park, Jiseong Im, Yeongheon Yang, Ryun‐Han Koo, Jonghyun Ko, Mingyun Oh, Dongbeen Shin, Gyuweon Jung, Jong‐Ho Lee   +8 more
wiley   +1 more source