Results 41 to 50 of about 2,347,328 (291)

Research of urban agglomerations from the position of a synergetic approach

Časopis Socìalʹno-Ekonomìčnoï Geografìï. Часопис соціально-економічної географії
The article examines urban agglomerations as complex subsystems of the socio-geosystem, characterized by a set of synergetic properties: openness, dynamism, flexibility, hierarchy, and emergence, among others.
Kateryna Kravchenko
doaj   +1 more source

Equilibrium Point Bifurcation and Singularity Analysis of HH Model with Constraint

Abstract and Applied Analysis, 2014
We present the equilibrium point bifurcation and singularity analysis of HH model with constraints. We investigate the effect of constraints and parameters on the type of equilibrium point bifurcation.
Xinhe Zhu, Zhiqiang Wu
doaj   +1 more source

Social Changes and “Points of no Return”: an Attempt to Conceptualize

Соціологічні студії, 2019
The modern world is characterized by fluidity, changeability, and unpredictability. In particular, social life is full of events that often inspire fear, affect and have unpredictable social effects.
Daria Yashkina
doaj   +1 more source

Spatiotemporal Tipping Induced by Turing Instability and Hopf Bifurcation in a Population Ecosystem Model with the Fear Factor

Complexity, 2023
Population ecosystems can display the tipping points at which extinctions of species happens. To predict the appearance of tipping points and to understand their evolution mechanism are of uttermost importance for ecological balance.
Min Xiao, Gong Chen, Feilong Wang, Zunshui Cheng, Yi Yao   +4 more
doaj   +1 more source

Microvascular Damage Is Associated With Carotid Wall Structural Changes in Systemic Sclerosis: A Capillaroscopy and Ultrasound‐Based Observational Study

Arthritis Care &Research, EarlyView.
Objective Systemic sclerosis (SSc) is characterized by cardiovascular risk excess not fully explained by traditional factors. Whether the severity of microvascular damage correlates with structural subclinical atherosclerosis remains unclear. We investigated the relationship between nailfold videocapillaroscopy (NVC) abnormalities and carotid ...
Eugenio Capparelli, Luca Clerici, Francesco Lapia, Giusy C. Moltisanti, Eleonora Zaccara, Greta Pellegrino, Daniela Bompane, Francesca Capelli, Letizia Ferrami, Laura Castelnovo, Antonio Tamburello, Maria Sole Chimenti, Paola Faggioli, Antonino Mazzone   +13 more
wiley   +1 more source

Empirical fixed point bifurcation analysis

CoRR, 2018
Submitted to ICML2018 on 9 February ...
Gergo Bohner, Maneesh Sahani
openaire   +3 more sources

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

Advanced 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, Michael Werner, Christian Rotsch   +2 more
wiley   +1 more source

Complex Bifurcation of the Two-Degree-of-Freedom Nonlinear Conveyor System

Shock and Vibration
A two-degree-of-freedom nonlinear moving belt system is investigated, which considers the possibility of two oscillators sticking or sliding on the moving belt simultaneously.
Songtao Li, Haojie Yuan, Wen Zhang, Qunhong Li   +3 more
doaj   +1 more source

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

Advanced 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, Hunter Kantelis, Yogesh K. Vohra, Shengbiao Zhang, Wuxian Yang, Wen Chen   +5 more
wiley   +1 more source

On Locating and Counting Satellite Components Born along the Stability Circle in the Parameter Space for a Family of Jarratt-Like Iterative Methods

Mathematics, 2019
This paper is devoted to an analysis on locating and counting satellite components born along the stability circle in the parameter space for a family of Jarratt-like iterative methods.
Young Hee Geum, Young Ik Kim
doaj   +1 more source