Results 61 to 70 of about 7,150 (266)

Identification of avian flapping motion from non-volant winged dinosaurs based on modal effective mass analysis.

PLoS Computational Biology, 2019
The origin of avian flight is one of the most controversial debates in Paleontology. This paper investigates the wing performance of Caudipteryx, the most basal non-volant dinosaur with pennaceous feathered forelimbs by using modal effective mass theory.
Yaser Saffar Talori, Jing-Shan Zhao, Yun-Fei Liu, Wen-Xiu Lu, Zhi-Heng Li, Jingmai Kathleen O'Connor   +5 more
doaj   +1 more source

Si‐Doped Nanocrystalline Diamond as Highly Sensitive Luminescence Thermometer for the Physiological Temperature Range

Advanced Functional Materials, EarlyView.
In this work, diamonds with negative charged silicon‐vacancy (SiV−) centers have been designed for use as thermometers in biomedical applications. Multiparametric analysis of the emission characteristics of the SiV− centers provides extraordinary sensitivity for temperature detection in the physiological temperature range.
María Gragera, Iván Carrillo‐Berdugo, Josue Millán, Paulius Pobedinskas, Antonio Freire, Ken Haenen, Javier Navas   +6 more
wiley   +1 more source

INCREASING THE PERFORMANCE OF THREAD-CUTTING TOOLS THROUGH THE USE OF ULTRASONIC VIBRATIONS WHEN CUTTING THREADS

Надежность и качество сложных систем
Background. One of the promising directions for improving the efficiency of mechanical processing is the introduction of qualitatively new technologies, in particular, using ultrasound energy. The use of forced ultrasonic vibrations during threading in
V.V. Golovkin, O.M. Batishcheva, V.A. Papshev   +2 more
doaj   +1 more source

Vibrations of Circular Metal-Polymeric Plates on an Elastic Foundation. Part II. Forced Vibrations

Механика машин, механизмов и материалов, 2009
The axisymmetrical forced vibrations of elastic circular three-layer metal-polymeric plate on en elastic foundation are explored under action of divided local loadings: rectangular, sinusoidal, parabolic.
Yu.M. Pleskachevsky , Ed.I. Starovoitov , D.V. Leonenko   +2 more
doaj  

Development of Multifunctional Hierarchically Restructured Antibacterial Neural Interfacing Electrodes via Plasma‐Enhanced Atomic Layer Deposition of Zinc Oxide Thin Films

Advanced Functional Materials, EarlyView.
ABSTRACT Next‐generation implantable neural‐interfacing devices are increasingly constrained by the coupled demands of electrode miniaturization, electrochemical performance, and implantation infection risk. Femtosecond laser–based hierarchical surface restructuring (HSR) technology has emerged as a scalable, manufacturing‐compatible platform for ...
Henna Khosla, Wesley Seche, Kriti Panchal, Steven J. May, Ekaterina Pomerantseva, Jacob Elmer, Tyler Cooper, Matthew J. Urban, Hailey Y. Maurer, Gregory A. Caputo, Jeffrey Hettinger, Shahram Amini, Gang Feng   +12 more
wiley   +1 more source

Tannic Acid‐Modified Cellulose Nanofiber Reinforced Polymerizable Eutectogels for High‐Performance Stretchable Strain Sensors

Advanced Functional Materials, EarlyView.
A polymerizable deep eutectic solvent is reinforced with tannic acid‐modified cellulose nanofibers to construct a hierarchical dynamic eutectogel network. Synergistic covalent and reversible interactions impart ultrahigh stretchability, high ionic conductivity, broad temperature tolerance, self‐healing, and strong adhesion, enabling robust wearable ...
Huang Wu, Yang Hu, Youmin Tuo, Weide Zhang, Nanzhu Bao, Haitao Wu, Zhuangzhuang Chu, Yunhua Chen, Tao Wang, Teng Yuan, Hongbo Zeng, Zhuohong Yang   +11 more
wiley   +1 more source

Dopant Distribution in Ga‐Implanted CdO—A Correlative Microscopy and Molecular Dynamics Study

Advanced Functional Materials, EarlyView.
This work demonstrates that ion implantation offset angle could modulate carrier concentration and mobility in cadmium oxide thin films. Combining correlative microscopy workflow and molecular dynamics simulations, this study reveals the control of interfacial cluster density with tailoring implantation angles, and the optimum offset angle that ...
Morvarid Ghorbani, Bhaveshkumar Kamaliya, Maxwell J. Tolchin, Ryan W. Spangler, Youngji Kim, Joshua D. Caldwell, Jon‐Paul Maria, Nabil D. Bassim   +7 more
wiley   +1 more source

Płaskie drgania swobodne niepodpartych pierścieni kołowych. Część III. Formy jednoczęstościowych drgań swobodnych

Engineering Transactions, 1990
Na podstawie poprzednich opracowań [1, 2] w niniejszej pracy omówiono charakterystyczne cechy jednoczęstościowych drgań swobodnych, powstających w modelu pierścienia uściślonym w sensie Timoshenki, związane z występowaniem dwuwymiarowych podprzestrzeni ...
Bogdan OLSZOWSKI
doaj  

Effects of mode couplings on the vibration characteristics of partially electroded thin-film bulk acoustic wave resonators

AIP Advances, 2019
Mode coupling vibrations in thin-film bulk acoustic wave resonators (FBARs) were systematically analyzed in the series of our work. Previously, the two-dimensional theory of multi-layered FBAR plate has been established and used for the analysis of both ...
Nian Li, Bin Wang, Zhenghua Qian
doaj   +1 more source

CV. On the forced vibrations of bridges [PDF]

The London, Edinburgh, and Dublin Philosophical Magazine and Journal of Science, 1922
(1922). CV. On the forced vibrations of bridges. The London, Edinburgh, and Dublin Philosophical Magazine and Journal of Science: Vol. 43, No. 257, pp. 1018-1019.
openaire   +1 more source