Results 111 to 120 of about 23,444,297 (308)

Optimal control and bifurcation analysis of a delayed fractional-order SIRS model with general incidence rate and delayed control

Nonlinear Analysis
A fractional-order generalized SIRS model considering incubation period is established in this paper for the transmission of emerging pathogens. The corresponding Hopf bifurcation is discussed by selecting time delay as the bifurcation parameter.
Conghui Xu, Yongguang Yu, Guojian Ren, Xinhui Si   +3 more
doaj   +1 more source

Stability and Hopf-Bifurcation Analysis of Delayed BAM Neural Network under Dynamic Thresholds [PDF]

, 2009
In this paper the dynamics of a three neuron model with self-connection and distributed delay under dynamical threshold is investigated. With the help of topological degree theory and Homotopy invariance principle existence and uniqueness of ...
Gupta, P. D. D., Majee, N. C. C., Roy, A. B. B.   +2 more
core   +1 more source

Internal Resonance Mismatch‐Controlled Dissipative Bistability Collapse in Coupled Micromechanical Oscillators

Advanced Science, EarlyView.
This paper reveals internal resonance mismatch‐controlled dissipative bistability collapse in a coupled micromechanical resonator. Tuning δIR changes both internal‐mode amplitude and phase‐dependent feedback. For negative mismatch, Duffing bistability survives.
Jianlin Chen, Xin Zhou, Takashiro Tsukamoto, Nan Wang, Shuji Tanaka   +4 more
wiley   +1 more source

Lie symmetry analysis and exact solutions of conformable generalized fractional partial differential equations

Mathematics Open
In this work, we investigate the invariance properties of nonlinear fractional partial differential equations (NLFPDEs) involving conformable fractional derivatives in both spatial and temporal variables by employing the framework of Lie symmetry ...
Amit, Rajeev Kumar, Zabihullah Movaheedi, Anupma Bansal, Abdallah M. Talafha, Sandeep Malik   +5 more
doaj   +1 more source

Nrsn1–Smarcc1 Coupling Regulates Neural Stem Cell Differentiation and Chronic‐phase Recovery After Ischemic Stroke

Advanced Science, EarlyView.
In the post‐stroke brain, Foxa2 induces the transcriptional upregulation of Nrsn1 in NSCs. Nrsn1 functionally couples with Smarcc1, modulating its nuclear availability and protein abundance, thereby influencing Smarcc1‐associated regulatory programs linked to neuronal lineage commitment. Through this coupling, Nrsn1 promotes the differentiation of NSCs
Ruolin Zhang, Chang Liu, Yuneng Zhou, Kaichen Zhao, Muyang Li, Bingcheng Cai, Ying Wang, Zhiyuan Yuan, Zhaoxin Liu, Zilong Yuan, Yao Xiao, Peiyang Zhou, Ke Shui, Wendai Bao, Min Zhang, Jun Qin, Jun Chen, Xin Yang, Zhiqiang Dong   +18 more
wiley   +1 more source

Recent Enhancements of Running Behaviour Analysis [PDF]

, 2004
Computational techniques allow a very efficient and inexpensive analysis of the running behaviour of railway vehicles. In this paper enhancements related to multibody simulation for three fundamental topics are briefly presented: A software environment ...
Kaiser, I., Carrarini, A., Schupp, G.
core  

Amphibious Movement of Microrobots Inspired by Water Spiders

Advanced Science, EarlyView.
Inspired by the water strider, a novel microrobot is designed to maintain amphibious mobility in complex environments. It retains the ability to traverse the air‐liquid interface and perform directional movement within sophisticated, multifaceted environments, including complex gastric wall structures, with precise controllability.
Xiao Hu, Run Ouyang, Zhuhao Shi, Wanqiong Tao, Zuchao Zhu, Peifeng Lin, Jianzhong Lin, Luca Brandt   +7 more
wiley   +1 more source

Comparative Study of Constant- and Variable-Order Fractional Dynamics with RBFNN Approximation

Fractal and Fractional
The analysis of the complexity of dynamical systems generally presents a major dilemma between including the complexity of memory effects and being computationally efficient.
Abdulrahman B. M. Alzahrani, Mohamed A. Abdoon   +1 more
doaj   +1 more source

Complementing maps, continuation and global bifurcation [PDF]

, 1983
We state, and indicate some of the consequences of, a theorem whose sole assumption is the nonvanishing of the Leray- Schauder degree of a compact vector field, and whose conclusions yield multidimensional existence, continuation and bifurcation ...
Pejsachowicz, Jacobo, Fitzpatrick, P., Massabò, I.   +2 more
core  

Organic Electrochemical Transistors for Neuromorphic Bioelectronics: Materials and Manufacturing Technologies

Advanced Science, EarlyView.
Organic electrochemical transistors bridge biological ionic signaling and neuromorphic computation through volumetric electrochemical gating. This review connects Organic mixed ionic–electronic conductor materials, device architectures, and manufacturing technologies to show how geometry, ion transport, and fabrication strategies program plasticity ...
Hyunjin Lee, Jihyang Park, Xinyi Wang, Yueqi Deng, Jiashu Ren, Tao Zhou   +5 more
wiley   +1 more source