Results 51 to 60 of about 46,577 (307)

Steering Oxygen Activation Pathways via Redox Dual‐Defects in 2D Hydrated WO3 for High‐Yield Singlet Oxygen Evolution

open access: yesAdvanced Functional Materials, EarlyView.
Redox dual‐defects (Cs substitution and O vacancies) in 2D hydrated WO3 steer O2 activation toward selective singlet oxygen evolution. WO‐CO achieves 8.6–15.8 times higher 1O2 production than single‐defect or pristine catalysts, enabling efficient pollutant mineralization via a pathway‐selective photocatalytic mechanism.
Sheng‐Qi Guo   +8 more
wiley   +1 more source

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

open access: yesShock 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   +3 more
doaj   +1 more source

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

open access: yesСоціологічні 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

Bifurcation analysis of surge and rotating stall in the Moore-Greitzer compression system [PDF]

open access: yes, 2002
A simple compression system model, described by a set of three ordinary nonlinear differential equations (the Moore-Greitzer model) is studied using bifurcation analysis to give a qualitative understanding of the presence of surge and rotating stall ...
Kullmann, L, Champneys, AR, Hos, C
core  

Double‐Interpenetrating Composite Bioink for Multi‐Component 3D Bioprinting and Biofabrication

open access: yesAdvanced Functional Materials, EarlyView.
Marine‐polysaccharides‐derived double interpenetrating network hydrogel‐based bioink, combining the attributes of physical and ionic crosslinking, enables room‐temperature bioprinting of mechanically defined structures that can be handled and are cytocompatible.
Fabian Tribukait‐Riemenschneider   +1 more
wiley   +1 more source

STUDY OF BIFURCATION ANALYSIS FOR DYNAMIC VOLTAGE STABILITY IN POWER SYSTEM [PDF]

open access: yesمجله مدل سازی در مهندسی, 2009
  N . Amjady1, * , M . R . Ansari Shahreza2     1 . Professor , Electrical & Computer Engineering Faculty , Semnan University , Semnan, Iran   2 . M . Sc.
نیما امجدی   +1 more
doaj   +1 more source

Energy profile and bifurcation analysis in softening plasticity [PDF]

open access: yes, 2004
Bifurcations of solutions and energy profile in softening plasticity are discussed in this paper. The localized and non-localized solutions are obtained for a simple softening bar; the second-order derivatives of the incremental energy are evaluated ...
Baker, Graham, Chen, G.
core   +1 more source

Shaping Matter with Acoustic Waves: From Particles to Functional Structures

open access: yesAdvanced Functional Materials, EarlyView.
Acoustic‐directed assembly is reviewed as a materials‐oriented strategy for organizing particles, polymers, metals, and biological systems into functional structures. The review distinguishes reversible manipulation from permanent structure formation through medium fixation, particle fixation, and in situ material generation, highlighting routes toward
Avraham Kenigsberg   +5 more
wiley   +1 more source

Branching Solutions of the Cauchy Problem for Nonlinear Loaded Differential Equations with Bifurcation Parameters

open access: yesMathematics, 2022
The Cauchy problem for a nonlinear system of differential equations with a Stieltjes integral (loads) of the desired solution is considered. The equation contains bifurcation parameters where the system has a trivial solution for any values.
Nikolai Sidorov, Denis Sidorov
doaj   +1 more source

Complementing maps, continuation and global bifurcation [PDF]

open access: yes, 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   +2 more
core  

Home - About - Disclaimer - Privacy