Results 31 to 40 of about 1,048,174 (296)

Bifurcation analysis of a multi-transverse-mode VCSEL [PDF]

open access: yes, 2008
We study the behaviour of a multi-transverse-mode vertical-cavity surface-emitting laser subject to optical feedback in which the optical modes are coupled through the external round-trip. Starting from a delayed partial differential equation description
Green, K, Green, K., Krauskopf, B
core   +1 more source

Bifurcation dynamics of Sherman neuron under magnetic flow effect

open access: yesJournal of Measurement Science and Instrumentation, 2023
The bifurcation behavior of Sherman neuron system under the influence of magnetron memristor is analyzed. Taking the membrane potential reversal voltages VCa and VK of islet β-cell neuron model as bifurcation parameters, the inter-spike interval ...
LI Tao   +3 more
doaj  

Bifurcation strategies using second-generation drug-eluting stents on clinical outcomes in diabetic patients

open access: yesFrontiers in Cardiovascular Medicine, 2022
BackgroundDiabetes mellitus (DM) is a critical risk factor for the pathogenesis and progression of coronary artery disease, with a higher prevalence of complex coronary artery disease, including bifurcation lesions.
Jung-Joon Cha   +32 more
doaj   +1 more source

Interval of restitution coefficient for chattering in impact damper

open access: yesJournal of Low Frequency Noise, Vibration and Active Control, 2022
Based on the impact damper, a dynamic model of a non-fixed constrained collision system was established. The coefficient of restitution is used as the main control parameter to analyze the system’s periodic movement and its bifurcation region.
Zongqi Li, Yanchen Du
doaj   +1 more source

Global Hopf bifurcation in the ZIP regulatory system [PDF]

open access: yes, 2015
Regulation of zinc uptake in roots of Arabidopsis thaliana has recently been modeled by a system of ordinary differential equations based on the uptake of zinc, expression of a transporter protein and the interaction between an activator and inhibitor ...
Ptashnyk, Mariya   +4 more
core   +1 more source

Investigating the Effect of Inclination Angle and the Influence of Scan Parameters on the Appearance and Thermal and Mechanical Properties of Filigree Tension Rods of LPBF‐Manufactured NiTi Shape‐Memory Alloys

open access: yesAdvanced Engineering Materials, EarlyView.
This article investigates the dependence of the properties on the manufacturing orientation in the form of the inclination angle to the build plate of LPBF‐fabricated NiTi rods with a diameter of 150–220 µm. Metallographic, chemical, thermal, and mechanical characterization show behavior under identical manufacturing conditions that ranges from ...
Sandra Herzig   +2 more
wiley   +1 more source

Bifurcation and chaos in a host-parasitoid model with a lower bound for the host

open access: yesAdvances in Difference Equations, 2018
In this paper, a discrete-time biological model and its dynamical behaviors are studied in detail. The existence and stability of the equilibria of the model are qualitatively discussed.
Xijuan Liu, Yandong Chu, Yun Liu
doaj   +1 more source

Comparing the clinical outcomes of single vs. systematic dual stenting strategies for unprotected left main bifurcation lesion: a systematic review and meta-analysis

open access: yesFrontiers in Cardiovascular Medicine, 2023
IntroductionThe optimal percutaneous coronary intervention (PCI) strategy for coronary left main (LM) bifurcation lesions remains controversial. This meta-analysis compared the medium and long-term follow-up clinical outcomes of single vs.
Shuai Meng   +7 more
doaj   +1 more source

Unilateral Global Bifurcation from Intervals for Fourth‐Order Problems and Its Applications

open access: yesDiscrete Dynamics in Nature and Society, 2016
We establish a unilateral global bifurcation result from interval for a class of fourth‐order problems with nondifferentiable nonlinearity. By applying the above result, we firstly establish the spectrum for a class of half‐linear fourth‐order eigenvalue problems.
Wenguo Shen, Tao He
openaire   +3 more sources

Microstructure‑Dependent Phase Transformations Under High‑Pressure Laser Heating in Additively Manufactured AlCrFe2Ni2

open access: yesAdvanced Engineering Materials, EarlyView.
Additively manufactured AlCrFe2Ni2 with contrasting BCC/B2‐dominant and lamellar FCC + BCC/B2 microstructures exhibits the same pressure‐induced BCC/B2 → HCP transformation. Under laser heating at high pressure, HCP is destabilized, and a cubic BCC/B2 + FCC assemblage is recovered, while the lower‐scan‐speed microstructure transforms at a lower ...
Raimundas Sereika   +5 more
wiley   +1 more source

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