Results 41 to 50 of about 1,239 (169)

Self‐Assembled Telecom Color Centers in Silicon and Their Growth Environment

Advanced Physics Research, EarlyView.
Influence of the growth pressure during the formation of self‐assembled color centers in silicon grown by molecular beam epitaxy at ultra‐low temperatures on the color center's photoluminescence spectral signature. The growth pressure crucially determines color center selectivity, as evidenced by G‐centers, W‐centers, and T‐centers, matrix purity, and ...
Jacqueline Marböck, Enrique Prado Navarrete, Merve Karaman, Oliver E. Lang, S. Mijatovic, Thomas Fromherz, Maciej O. Liedke, Andreas Wagner, Moritz Brehm, Johannes Aberl   +9 more
wiley   +1 more source

SERS Sensor Chips Based on Nanosphere Lithography on Flexible Platforms for the Detection of Chemicals, Pesticides and Nucleotides

Advanced Physics Research, EarlyView.
In this paper, we propose an efficient and scalable method for creating high‐performance, flexible surface‐enhanced Raman scattering (SERS) substrates using gap‐tunable nanosphere lithography on flexible substrates such as Kapton and PET. The applicability of the SERS sensor chips for diverse applications was demonstrated by its ability to detect ...
Merbin John, Umang Chaturvedi, Kamal Lohani, Kamal Kumar, Anuj Dhawan   +4 more
wiley   +1 more source

Morpho‐functional analyses of the jaw apparatus in the Blue‐and‐yellow Macaw (Ara ararauna, Psittaciformes, Aves): Adaptations to feeding behavior

The Anatomical Record, EarlyView.
Abstract Macaws are renowned for processing dry, mechanically resistant fruits, yet the species‐level anatomical and functional correlates of this performance remain incompletely resolved. We examined the feeding apparatus of the Blue‐and‐yellow Macaw (Ara ararauna) using an integrated approach that combines osteology, myology, and bite‐force estimates
Sérgio R. Posso, Ana Caroline M. Barbosa, Victor R. Caciatori   +2 more
wiley   +1 more source

Oldest well‐preserved euprimate petrosal, from the early Eocene of India (Vastan Lignite Mine, Gujarat)

The Anatomical Record, EarlyView.
Abstract An exquisitely preserved, isolated partial petrosal with associated fragmentary stapes is described from the Vastan Lignite Mine (Gujarat, India), dated to the early Eocene (~54.5 Ma). Several anatomical traits (e.g., large petrosal plate; posterolateral entry of the internal carotid artery to the tympanic cavity; bony tubes surrounding the ...
Mary T. Silcox, Kenneth D. Rose, Rachel H. Dunn, Kishor Kumar, Rajendra S. Rana, Ashok Sahni, Lachham Singh, Thierry Smith, Jordan W. Crowell   +8 more
wiley   +1 more source

Nacre‐inspired layered composite with excellent mechanical support and osteogenic potential for cervical interbody cage

BMEMat, EarlyView.
The cervical interbody cage needs to take both biomechanical and biological requirements into account. Here, a new‐style degradable, multicomponent, and bioinspired nacre‐like cervical interbody cage composite, which exhibits promising mechanical‐support‐related behavior and osteogenesis‐related potential, is designed and prepared.
Xiu‐Wu Guo, Shao‐Meng Wen, Tian‐Yu Xing, Yang Zhou, Chun‐Xin Wang, Chang Ge, Si‐Ming Chen, Wen‐Zhi Zhang, Shu‐Hong Yu   +8 more
wiley   +1 more source

Ru Nanoparticle Supported by Mesoporous SiOx and Pillared Montmorillonite: Suppressing Catalyst Inhibition in Carbon Dioxide Hydrogenation

Chemistry – A European Journal, EarlyView.
Ru nanoparticles confined within mesoporous SiOx‐pillared montmorillonite exhibit exceptional performance for CO2 methanation. The catalyst maintains a high reaction rate even at elevated CO2 conversion while preserving high Ru mass–specific activity, overcoming typical inhibition by H2O and CO observed in conventional supported Ru catalysts.
Seunghwan Jung, Zimu Miao, Yasuhiro Sakamoto, Fuminao Kishimoto, Kazuhiro Takanabe   +4 more
wiley   +1 more source

Investigation on tunnel stability considering pipe‐roof support with transparent soil technology

Deep Underground Science and Engineering, EarlyView.
This study integrates transparent soil technology, 3D reconstruction and numerical simulation to captures the full‐field deformation of shield tunnel instability. Results demonstrate that pipe‐roof support enhances stability via the “soil‐arching barrier effect,” effectively restraining failure wedge development by extending stress transfer paths ...
Zhi Jia, Yunpeng Ji, Zhao Lu, Honghua Zhao, Limin Zhang   +4 more
wiley   +1 more source

Exponentially‐constrained Gaussian mixture model for quantifying vertical development of water‐conducting fracture zones in lithologically stratified mining roofs

Deep Underground Science and Engineering, EarlyView.
This study proposes an exponentially‐constrained Gaussian mixture model (EcGMM) to quantify vertical fracture heterogeneity in stratified roof strata. The model integrates a piecewise exponential decay term capturing global stress dissipation with Gaussian components representing localized fracture intensification at lithological interfaces.
Huiqing Yuan, Zhimin Xu, Weixiao Chen, Chenghang Zhang, Shijie Xiong, Yajun Sun   +5 more
wiley   +1 more source

Carbon Anodes for Low‐Temperature Nonaqueous Alkali Metal‐Ion Batteries

EcoEnergy, EarlyView.
This review summarizes recent progress in carbon anodes for low‐temperature nonaqueous alkali‐metal ion batteries. Fundamental thermodynamic and kinetic limitations are examined, alongside a systematic discussion of graphite, hard carbon, and emerging carbon architectures.
Zhichun Miao, Dandan Yu, Guojie Liu, Yuyang Qin, Jingyun Mou, Wenlong Song, Lu Shi, Zengqin Xiao, Xin Yuan, Huayu Chen, Laishun Qin, Da Chen   +11 more
wiley   +1 more source

Revealing Structure–Performance Relations in Core‐Shell Catalyst‐Based PEM Water Electrolyzer Anodes with Low Iridium Loading

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Table of Contents The TiO2@IrO2 core–shell architecture ensures high electronic conductivity even at a low iridium content of 10 wt%. The resulting catalyst layer shows significantly higher iridium utilization than a commercial reference, leading to improved PEMWE single‐cell performance at low iridium loading.
Selina Finger, Darius Hoffmeister, Tien‐Ching Ma, Lena Fiedler, A. Lucía Morales, Andreas Körner, Nico Roubicek, Leopold Lahn, Johannes Böhmer, Thomas Przybilla, Erdmann Spiecker, Olga Kasian, Anna T. S. Freiberg, Karl J. J. Mayrhofer, Simon Thiele, Chuyen van Pham, Andreas Hutzler   +16 more
wiley   +1 more source