Results 51 to 60 of about 255,795 (302)

Blowing-up solutions for the Yamabe equation

Portugaliae Mathematica, 2014
Let (M,g) be a smooth, compact Riemannian manifold of dimension N\ge3 . We consider the almost critical problem
P. Esposito, PISTOIA, Angela
openaire   +2 more sources

Surprising Water Slipping Performance on Highly Hydrophilic PEG‐Derived Monolayer‐Covered Surfaces: Preparation, Mechanism, and Application

Advanced Functional Materials, EarlyView.
Highly hydrophilic surfaces (water contact angle, ≈17.7°) exhibiting surprising water slipping performance (sliding angle, ≈7.3°) are successfully prepared via simple chemisorption of polyethylene glycol (PEG) organosilane and subsequent alkali‐treatment.
Hyeonjin Kim, Kouki Akaike, Jerred Wassgren, Hiroshi Kakiuchida, Masahisa Okada, Atsushi Hozumi   +5 more
wiley   +1 more source

Microsphere‐Templated Conductive Syntactic Foams for Recyclable and Additively Manufactured Soft Electronics

Advanced Healthcare Materials, EarlyView.
This work introduces a microsphere‐templated strategy to fabricate reprocessable PEDOT:PSS syntactic foams with tunable porosity, stable conductivity, and 3D printability. In situ PEDOT:PSS coatings create a conductive network that maintains electrical performance at high void fractions.
Gayaneh Petrossian, Yassine Diouri, Bolan Xu, Sara Ebrahimi, Atharva Pande, Floriane Miquet‐Westphal, Hang Xu, Fabio Cicoira   +7 more
wiley   +1 more source

A solution to the blow-up problem in adaptive controllers [PDF]

Modeling, Identification and Control, 1985
This paper addresses the blow-up problem associated with the parameter estimation part of an adaptive controller. A partial solution to the problem has been devised by the introduction of a variable forgetting factor. However, this does not eliminate the
Steinar Sælid, Olav Egeland, Bjarne A. Foss   +2 more
doaj   +1 more source

Estimates of blow-up time for a non-local problem modelling an Ohmic heating process

, 2002
We consider an initial boundary value problem for the non-local equation, ut = uxx+λf(u)/(∫1-1f (u)dx)2, with Robin boundary conditions. It is known that there exists a critical value of the parameter λ, say λ*, such that for λ > λ* there is no ...
Tzanetis, DE, N. I. KAVALLARIS, D. E. TZANETIS, Kavallaris, NI, Kavallaris, Nikos I.,, Tzanetis, D. E.,, Nikolopoulos, CV, C. V. NIKOLOPOULOS, Nikolopoulos, C. V.,   +8 more
core   +1 more source

Tuning Amorphous‐Crystalline Catalytic Interfaces by Mechanochemistry: Cu‐Based Metallic Glasses Coupled with Ceria for CO Oxidation

Advanced Materials, EarlyView.
Ball‐milling Cu‐based metallic glasses with ceria creates a unique nanostructure where metallic glass particles are wrapped by CeO2 nanoparticles. The intimate integration triggers copper state reorganization during reaction and aging, boosting CO oxidation and COPrOx activity.
Maahin Mirzay‐Shahim, Mehran Nabahat, Laia Pascua‐Solé, Isabel Serrano, Ilaria Lucentini, Xènia Garcia, Marina Armengol‐Profitós, Asier Agrelo‐Lestón, Ignasi Burgués‐Ceballos, Núria J. Divins, Ignacio J. Villar‐Garcia, Virginia Pérez‐Dieste, Carlos Escudero, Carlo Marini, Jordi Llorca, Eloi Pineda, Pere Bruna, Lluís Soler   +17 more
wiley   +1 more source

Nonexistence of positive global solutions for singular differential inequalities on exterior domains of the Heisenberg group

Electronic Journal of Qualitative Theory of Differential Equations
This paper investigates the nonexistence and existence of global weak solutions to semilinear differential inequalities in the exterior domain of the unit ball within the Heisenberg group $\mathbb{H}^N$.
Mongi Blel
doaj   +1 more source

The blow-up solutions of integral equations [PDF]

Colloquium Mathematicum, 1999
A class of nonlinear Volterra equations of the form \[ u(t)=\int_{0}^{t}k(t-\tau)r(s)g(u(s)+h(s)) ds, \quad t>0 \] is considered. These equations are motivated by models of processes in diffusive media which have an explosive character.
openaire   +2 more sources

Viral Infection‐Inspired Autonomous Detection of Fusion‐Competent Viruses for Screening and Environmental Surveillance

Advanced Materials, EarlyView.
Inspired by viral entry mechanisms, the FUSION assay enables autonomous detection of respiratory viruses via membrane fusion–triggered CRISPR‐Cas13a activation. VEACON selectively fuses with fusion‐competent viruses, triggering fluorescence within confined vesicles.
Jae Chul Park, Yidam Song, Hyun‐Woo Choi, Jaeuk Sung, Harin Jin, WonSeok Gwak, Kirim Yoo, Soohwang Lee, Jongeon Park, Jeongmin Kim, Hye‐Jun Jo, Jahyun Koo, Youngdo Jeong, Kwan Hyi Lee, Seung‐Jung Kee, Hojun Kim   +15 more
wiley   +1 more source

Existence, decay and blow up of solutions for the extensible beam equation with nonlinear damping and source terms

Open Mathematics, 2015
We consider the existence, both locally and globally in time, the decay and the blow up of the solution for the extensible beam equation with nonlinear damping and source terms.
Pişkin Erhan
doaj   +1 more source