Results 61 to 70 of about 556,712 (359)

Heterostructure‐Specific Toughening Mechanisms in Metallic Laminates

Advanced Engineering Materials, EarlyView.
This study highlights how various aspects of the heterostructural design of metallic laminates can be specifically tailored to achieve improved fracture resistance for damage‐tolerant designs of cyclically stressed components. Based on results from in situ fatigue crack growth tests, a comprehensive overview of the formation and development of ...
Philip Manuel Pohl, Matthias Mai, Lea Kölpin, Dorothea Matschkal, Mathias Göken, Heinz Werner Höppel   +5 more
wiley   +1 more source

Global bifurcation analysis of a quartic predator-prey model [PDF]

Компьютерные исследования и моделирование, 2011
We complete the global bifurcation analysis of a quartic predator-prey model. In particular, studying global bifurcations of singular points and limit cycles, we prove that the corresponding dynamical system has at most two limit cycles.
Valery Aleksandrovich Gaiko
doaj   +1 more source

Chaotic Transport and Current Reversal in Deterministic Ratchets

, 1999
We address the problem of the classical deterministic dynamics of a particle in a periodic asymmetric potential of the ratchet type. We take into account the inertial term in order to understand the role of the chaotic dynamics in the transport ...
Mateos, Jose L.
core   +1 more source

The Route to Artery Mimetics: Hybrid Bioinks for Embedded Bioprinting of Multimaterial Cylindrical Models

Advanced Functional Materials, EarlyView.
The fabrication of a cellularized, multilayered 3D printed cylindrical model comprising hybrid bioinks inspired by the natural extracellular environment as an approach to artery mimetics, is presented. Using embedded bioprinting, interlayer crosslinking of self‐supporting concentric cylinders is achieved.
Uxue Aizarna‐Lopetegui, Ada Herrero‐Ruiz, Monize C. Decarli, Ane Urigoitia‐Asua, Karla Chavarri‐Urraca, Lorenzo Moroni, Malou Henriksen‐Lacey, Dorleta Jimenez de Aberasturi   +7 more
wiley   +1 more source

Singularity bifurcations [PDF]

Journal of Macroeconomics, 2006
equation models represent an important class of macroeconomic systems. Our ongoing research (He and Barnett (2003)) on the Leeper and Sims (1994) Euler equations macroeconometric model is revealing the existence of singularity-induced bifurcations, when the model¡¯s parameters are within a confidence region about the parameter estimates. Although known
Yijun He, William Barnett
openaire   +2 more sources

A blue sky catastrophe in double-diffusive convection

, 2004
A global bifurcation of the blue sky catastrophe type has been found in a small Prandtl number binary mixture contained in a laterally heated cavity. The system has been studied numerically applying the tools of bifurcation theory.
E. Knobloch, Esteban Meca, Isabel Mercader, J. Bhattacharjee, J. Guckenheimer, J. Turner, L. Shilnikov, Laureano Ramírez-Piscina, Oriol Batiste, Y. Kuznetsov   +9 more
core   +1 more source

3D (Bio) Printing Combined Fiber Fabrication Methods for Tissue Engineering Applications: Possibilities and Limitations

Advanced Functional Materials, EarlyView.
Biofabrication aims at providing innovative technologies and tools for the fabrication of tissue‐like constructs for tissue engineering and regenerative medicine applications. By integrating multiple biofabrication technologies, such as 3D (bio) printing with fiber fabrication methods, it would be more realistic to reconstruct native tissue's ...
Waseem Kitana, Indra Apsite, Leonid Ionov   +2 more
wiley   +1 more source

Dynamic behavior of P53-Mdm2-Wip1 gene regulatory network under the influence of time delay and noise

Mathematical Biosciences and Engineering, 2023
The tumor suppressor protein P53 can regulate the cell cycle, thereby preventing cell abnormalities. In this paper, we study the dynamic characteristics of the P53 network under the influence of time delay and noise, including stability and bifurcation ...
LanJiang Luo, Haihong Liu , Fang Yan
doaj   +1 more source

Time-delayed feedback control of unstable periodic orbits near a subcritical Hopf bifurcation

, 2010
We show that Pyragas delayed feedback control can stabilize an unstable periodic orbit (UPO) that arises from a generic subcritical Hopf bifurcation of a stable equilibrium in an n-dimensional dynamical system. This extends results of Fiedler et al. [PRL
Bar-Eli, C.M. Postlethwaite, Campbell, Campbell, Campbell, Crawford, Dombovari, Dombovari, El’sgol’ts, Faria, Fiedler, Fiedler, Field, G. Brown, Golubitsky, Golubitsky, Guckenheimer, Guckenheimer, Hale, Hale, Hassard, Just, Kalmar-Nagy, M. Silber, Montgomery, Nakajima, Nayfeh, Orosz, Orosz, Ott, Postlethwaite, Postlethwaite, Postlethwaite, Pyragas, Pyragas, Pyragas, Pyragas, Pyragas, Pyragas, Qesmi, Sieber, Sparrow, Stone, Strogatz, Stépán, von Loewenich, Wiggins   +46 more
core   +1 more source

Near‐Field Optical Detection of Defect‐Stabilized Metallic Islands at the Verwey Transition in Fe3O4

Advanced Functional Materials, EarlyView.
Nanoscale metallic islands emerging across the Verwey transition in thin films of Fe3O4 are imaged using near‐field optical microscopy from mid‐infrared to terahertz frequencies. Recurring across thermal cycles, these disorder‐stabilized islands exhibit distinct transition temperatures.
Kajal Tiwari, Mostafa Ibrahim Shehata Marzouk, Ke Xiao, Malleswararao Tangi, Stuart Stephen Papworth Parkin   +4 more
wiley   +1 more source