Results 31 to 40 of about 556,588 (202)

Hidden in Plain Sight: Aromaticity of Hexagonal Boron Nitride

Chemistry – A European Journal, EarlyView.
How apt is the nickname “white graphene” for hexagonal boron nitride (hBN)? Although graphene's aromaticity is well established, it is not known if hBN is aromatic. In this work, hBN's aromaticity is probed using magnetic and energetic criteria. Group‐theoretic considerations and magnetically induced current density maps are used to further reveal the ...
Suryakanti Debata, Sai Krishna Narayanan, Pratibha Dev   +2 more
wiley   +1 more source

Modeling and experimental validation of bolt–grout bond–slip behavior for deep underground excavation support

Deep Underground Science and Engineering, EarlyView.
A novel shear‐lag model, validated by pull‐out tests, incorporates a constant bond stress stage to predict the complete load–displacement response of grouted rock bolts, providing a new tool for optimizing anchorage length and material toughness in deep underground engineering. Abstract The stability of rock masses in deep underground excavations, such
Wenhui Bian, Xiaohui He, Kexue Wang, Yufei Wu, Guoxin Wang, Shaochen Zhang, Jun Yang   +6 more
wiley   +1 more source

Physicochemical, Functional, and Health‐Promoting Properties of Processed Nettle (Urtica Dioica) Leaves: A Review

Future Postharvest and Food, EarlyView.
Stinging nettle (Urtica dioica L.) leaves are a nutrient‐dense source of proteins, dietary fiber, chlorophylls, carotenoids, and phenolic compounds. Processing technologies enable the production of powders and extracts for incorporation into bakery, beverage, dairy, and nutraceutical products; however, challenges remain regarding sensory quality ...
Mary Nkongho Tanyitiku, Rakshya Pandit, Mihiri Vanniarachchy   +2 more
wiley   +1 more source

Infrared behavior of the Faddeev-Popov operator in Coulomb gauge QCD [PDF]

, 2008
We calculate the eigenvalue distribution of the Faddeev-Popov operator in Coulomb gauge QCD using quenched SU(3) lattice simulation. In the confinement phase, the density of the low-lying eigenvalues increases with lattice volume, and the confinement ...
Saito, T., Toki, H., Nakagawa, Y., Nakamura, Atsushi   +3 more
core   +1 more source

Why Faculty “Fail to Fail”: A Study of US Dental School Faculty Perceptions About Assigning Failing Ratings and Grades

Journal of Dental Education, EarlyView.
ABSTRACT Purpose The “failure to fail” phenomenon, faculty reluctance to assign failing grades to underperforming learners, poses persistent challenges in health professions education. This study examines the prevalence, contributing factors, and contextual patterns of this phenomenon in US dental education.
Vidya Ramaswamy, Theodora Danciu, Dharini van der Hoeven   +2 more
wiley   +1 more source

THE RELATIONSHIP OF THE PETROPHYSICAL CHARACTERISTICS TO MATERIAL AND AGE-RELATED FEATURES OF GRANITOIDS IN PETER THE GREAT BAY (SEA OF JAPAN)

Геодинамика и тектонофизика
Here are presented the results of the petrophysical studies of granitoid complexes located on the Muravyov-Amursky Peninsula and the Russky and Popov islands.
T. A. Kharchenko, V. T. S’edin, M. G. Valitov, E. P. Terekhov   +3 more
doaj   +1 more source

Pollen Morphology of Crucianella L. (Rubiaceae) Based on Light and Scanning Electron Microscope Data and Implications for Taxonomy

Microscopy Research and Technique, EarlyView.
This study provides the palynological analysis of 12 Crucianella L. taxa using LM and SEM. Variations in pollen size, aperture number, and exine ornamentation were identified as key traits, demonstrating their taxonomic value for distinguishing closely related species and subspecies within the genus. ABSTRACT Crucianella L.
Sevcan Celenk, Zelal Kücük, Gülşah Bağcıvan, Ruziye Daşkın   +3 more
wiley   +1 more source

Analysis of Carbohydrates and Glycoconjugates by Matrix‐Assisted Laser Desorption/Ionization Mass Spectrometry: An Update for 2023–2024

Mass Spectrometry Reviews, EarlyView.
ABSTRACT The use of MALDI mass spectrometry for the analysis of carbohydrates and glycoconjugates is a well‐established technique and this comprehensive review is the twelfth update of the original article published in 1999 and brings coverage of the literature to the end of 2024.
David J. Harvey
wiley   +1 more source

Distributed Coordination $\mathcal{D}$-Stabilization in Cyclic Pursuit Formations of Dynamical Multi-Agent Systems

Actuators
In this study, the cyclic pursuit formation stabilization problem in target-enclosing operations by multiple homogeneous dynamic agents is investigated.
Jun-Gyu Park, Yeongjae Kim, Tae-Hyoung Kim   +2 more
doaj   +1 more source

Validation of Neural Network Controllers for Uncertain Systems Using the Keep‐Close Approach: Robustness Analysis and Safety Verification

International Journal of Robust and Nonlinear Control, EarlyView.
ABSTRACT The safety verification of neural network (NN) controllers operating in uncertain environments characterized by unmodeled dynamics, nonlinearities, and time delays remains a fundamental challenge in robust control analysis. This article introduces a novel method, termed Keep‐Close, for analyzing the performance and robustness of uncertain ...
Abdelhafid Zenati, Nabil Aouf
wiley   +1 more source