Results 71 to 80 of about 75,442 (259)

Karl Popper and the Mechanisms of Hydrogen Embrittlement

Advanced Engineering Materials, EarlyView.
Representation of the beginning of loss of ductility rather than embrittlement. Small concentrations of hydrogen in a diffusible form within iron are well‐established to harm the mechanical integrity of steels. There are theories that attempt to explain the pernicious role of hydrogen.
H. K. D. H. Bhadeshia
wiley   +1 more source

Trifurcation of band-gap structure and coexistence of lattice-like states and critical states in piezoelectric period-doubling superlattices

, 2007
We study the propagation of electromagnetic wave in piezoelectric period-doubling superlattices with using the generalized 4 × 4 transfer matrix method, and the dynamics of electromagnetic wave and acoustic wave is treated on equal footing.
Z. X. Liu, W. Y. Zhang, H. He, L. M. Wang   +3 more
core   +1 more source

Distribution of sequence types over the study period (2015–2020).

, 2021
Distribution of sequence types over the study period (2015–2020).
Dhiviya Prabaa Muthuirulandi Sethuvel (8495979), Naresh Chand Sharma (11841048), Arun Kumar (49927), Vikas Gautam (11841039), Balaji Veeraraghavan (4376344), Pankaj Bhatnagar (11841051), Pradeep Haldar (745257), Ranjini Ranjan (11841036), Lucky Sangal (10516003), Prashanth Gupta (11841042), Dhivya Murugan (9764810), Ankur Mutreja (459280), Jaichand Johnson (11841045), Naveen Kumar Devanga Ragupathi (8495976)   +13 more
core   +1 more source

Influence of Test Temperature and Test Frequency on Fatigue Life of Aluminum Alloy EN AW‐2618A

Advanced Engineering Materials, EarlyView.
The influence of test temperature and test frequency on the fatigue life of EN AW‐2618A is investigated. High‐cycle fatigue tests are performed at different test temperatures and frequencies on the 1000 h/230°C overaged state. Both test parameters reduce fatigue life due to time‐dependent damage mechanisms.
Ying Han, Julian M. Rosalie, Jan Radners, Mauro Madia, Philipp von Hartrott, Birgit Skrotzki   +5 more
wiley   +1 more source

THE PERIOD-DOUBLING BIFURCATION SEQUENCES OF THE TRIMOLECULAR MODEL WITH FORCED OSCILLATION TERM

Acta Physica Sinica, 1983
In this paper, we discuss the trimolecular model with a forced oscillation term. We carried out the numerical calculations. Some results are given for the case of forced oscillation amplitude c=0.05 and forced oscillation frequencies D over a certain range. We have found the 2n-point periodic sequences by analyzing these results and cam-pared them with
openaire   +1 more source

Period-doubling bifurcations, chaos, phase-locking and devil's staircase in a Bonhoeffer-van der Pol oscillator

, 1988
The effect of a periodic input current A1 cos t in the Bonhoeffer-van der Pol oscillator along with a bias A0 is investigated numerically. As the parameter A1 is varied in the absence of bias by holding the other parameters at constant values, typical ...
Lakshmanan, M., Rajasekar, S.
core   +1 more source

Natural Bone‐Derived Ceramic Scaffolds Functionalized with Chitosan‐Gold, Chitosan‐Magnesium, and Chitosan‐Zinc for Enhanced Antibacterial Activity

Advanced Engineering Materials, EarlyView.
This study reports the development of antibacterial ceramic scaffolds derived from natural bovine bone. The bones were processed through sequential boiling and hydrogen peroxide treatment to remove organic matter, producing porous, mineral‐rich scaffolds.
Mohamad Hassan Taherian, Anh Thi Le, Anh Thi Van Le, Dung My Thi Dang, Tin Chanh Duc Doan, Chien Mau Dang, Martin Bolduc   +6 more
wiley   +1 more source

Analysis of Bifurcation Characteristics of Fractional‐Order Direct Drive Permanent Magnet Synchronous Generator

Energy Science & Engineering
In this study, we establish a fractional‐order direct drive permanent magnet synchronous wind turbines (DPMSG) model defined by Caputo based on the fractional calculus theory to overcome the singularity and limitations of integer‐order DPMSG models.
Wei Chen, Wentao Kou, Zhanhong Wei, Bo Wang, Qiangqiang Li   +4 more
doaj   +1 more source

Encyclopedia of 2D β′‐In2Se3 Growth Using Chemical Vapor Deposition: The Effects of Synthesis Parameters Onto Material Quality

Advanced Engineering Materials, EarlyView.
A distinct semi‐confined inner‐tube chemical vapor deposition geometry enables reproducible, large‐area growth of phase‐pure 2D β′‐In2Se3 from InI + Se precursors. Engineering local vapor transport and optimizing precursor delivery and temperature–time conditions yield uniform continuous films.
Dasun P. W. Guruge, P. Sanju S. Panawala, Joseph F. S. Fernando, Zhenhuan Chen, Chao Zhang, Dong‐Chen Qi, Liangzhi Kou, Konstantin L. Firestein, Dmitri V. Golberg   +8 more
wiley   +1 more source

Numerical study of reverse period doubling route from chaos to stability in a two-mode intracavity doubled Nd-YAG laser

, 1999
We have numerically studied the behavior of a two-mode Nd-YAG laser with an intracavity KTP crystal. It is found that when the parameter, which is a measure of the relative orientations of the KTP crystal with respect to the Nd-YAG crystal, is varied ...
Nandakumaran, V M, Thomas, Kuruvilla
core   +1 more source