Results 111 to 120 of about 777,500 (302)

Kinetic Regimes of Hydrogen Absorption in Thin Films

Advanced Functional Materials, EarlyView.
Knowledge of the hydrogen incorporation mechanisms in thin layers in relation to the amount absorbed is essential to design coatings and devices compatible with hydrogen‐based technologies. A combination of simultaneous in situ methods gives detailed insight into the hydrogenation of a prototypical hydrogen absorber layer in a time‐dependent manner ...
Laura Guasco, Sabine Pütter, Yury N. Khaydukov, Luca Silvi, Mariano A. Paulin, Attila Csik, Thomas Keller, Bernhard Keimer   +7 more
wiley   +1 more source

A Deep Learning-Driven Framework for Real-Time Recognition and Quantification of Subway Tunnel Surface Defects Using High-Resolution Imaging

Urban Rail Transit
Subway tunnels, with their complex underground environment, frequently develop surface defects like cracks and water leakage over time. Traditional manual inspection methods are inadequate for current accuracy and efficiency needs.
Zunchao Ren, Yanyi Liu, Dukun Zhao, Yueji He, Junjie Zhang   +4 more
doaj   +1 more source

Assessment of Rainfall Variability over Karnataka state in India

Natural Hazards Research
Karnataka state situated in the southern part of India is surrounded by a long coast line and western ghat mountain regions on the western side. The rainfall distribution shows a large variability in different parts of the state.
Krushna Chandra Gouda, Nikhilasuma P, Mahendra Benke, Geeta Agnihotri   +3 more
doaj   +1 more source

Experimental Investigation on the Influence of Regional Concrete Spalling on Shield Tunnel Segments

Advances in Civil Engineering, 2019
Based on the field investigation and analysis, the mechanical characteristics of segment structure in shield tunnels are compared and analyzed under the circumstances of different concrete spalling region by the method of similarity model experiment ...
Shimin Wang, Chuankun Liu, Gaoyu Ma, Songyu Cao, Junbo Zhang, Daiyue Lu, Chuan He   +6 more
doaj   +1 more source

Tempi di Tunnelling (Tunneling Times)

, 1998
In this review (in Italian) we critically and detaily examine various definitions existing in the literature for the tunnelling times: namely, the phase-time; the centroid-based times; the Buttiker and Landauer times; the Larmor times; the complex (path-integral and Bohm) times; the dwell time, and the generalized (Olkhovsky and Recami) dwell time ...
Privitera, Giuseppe, Recami, Erasmo, Olkhovsky, Vladislav S.   +2 more
openaire   +2 more sources

Tracing Sub‐Monolayer Contamination on Wafer‐Scale 2D Materials

Advanced Functional Materials, EarlyView.
Sub‐monolayer adventitious carbon contamination limits the performance and reproducibility of 2D material‐based devices. This study demonstrates scanning helium microscopy (SHeM) as a non‐destructive, ultra‐sensitive tool for wafer‐scale imaging of surface cleanliness.
Chenyang Zhao, Sam M. Lambrick, Ke Wang, Shaoliang Guan, Aleksandar Radić, David J. Ward, Andrew P. Jardine, Boyao Liu   +7 more
wiley   +1 more source

Design Strategies and Emerging Applications of High‐Performance Flexible Piezoresistive Pressure Sensors

Advanced Functional Materials, EarlyView.
Flexible piezoresistive pressure sensors underpin wearable and soft electronics. This review links sensing physics, including contact resistance modulation, quantum tunneling and percolation, to unified materials/structure design. We highlight composite and graded architectures, interfacial/porous engineering, and microstructured 3D conductive networks
Feng Luo, Artur Ciesielski, Paolo Samorì   +2 more
wiley   +1 more source

Photon tunneling microscopy

Applied Optics, 1989
Abstract The Photon Tunneling Microscope is used to provide high resolution (subnanometer vertical), quantifiable, real-time, 3-D (with continuously variable viewpoint) imaging and profilometry of homogenous dielectric samples, whether transparent or absorbing. A partial list of these includes: thin films (micraroughness.
openaire   +2 more sources

Solution‐Processed Two‐Dimensional Indium Oxide on Sodium‐Embedded Alumina for Reconfigurable Optoelectronic Synaptic Transistors

Advanced Functional Materials, EarlyView.
Wafer‐scale two‐dimensioanl In2Se3 oxidized into InOx on sodium‐embedded beta‐alumina enables multifunctional reconfigurable electronics. Sodium ions accumulate within distinct spatial distribution under drain‐controlle and gate‐controlled operation. Drain‐control operation gives controllability of ultraviolet‐driven optoelectronic synaptic conductance
Jinhong Min, Yonghyun Albert Kwon, Hyunbin Kim, Jihyun Kim, Myeongjin Jung, Jaewon Heo, Gwang Ya Kim, Vlastimil Mazanek, Zdeněk Sofer, In Soo Kim, Jeong Ho Cho, Hyesung Park, Sang Min Won, Joohoon Kang   +13 more
wiley   +1 more source

Research on multi-objective optimization method of Z-shaped pipeline structure based on Kriging model

Scientific Reports
Slurry pipeline transportation is widely used in dredging and serves as an essential method for conveying solid materials. However, accurately describing the interaction between slurry and particles through numerical simulations, while optimizing the ...
Chunya Sun, Zhengdong Xiao, Yanqiu Xiao, Zhifang Xu, Wanbin Cui, Pengpeng Wang, Zhanpeng Fang, Guangzhen Cui, Lianhui Jia   +8 more
doaj   +1 more source