Results 181 to 190 of about 66,753 (329)

Boundary-value problems for almost nonlinear singularly perturbed systems of ordinary differential equations

open access: yes, 2000
The authors look for asymptotic solutions of the form \[ x=x(t,\varepsilon)=\sum_{i=0}^\infty\varepsilon^i[x_i(t)+\chi_i(\tau)],\quad (t,\varepsilon)\in [a,b]\times (0,\varepsilon_0],\quad \tau=(t-a)/\varepsilon, \] to the singularly perturbed system \(\varepsilon(d/dt)x=Ax+\varepsilon f(t,x,\varepsilon)+\varphi(t),\) with prescribed values of \(l(x)\).
Karandjulov, L., Stoyanova, Y.
openaire   +2 more sources

Selective Charge Injection via Topological van der Waals Contacts for Barrier‐Free p‐Type TMD Transistors

open access: yesAdvanced Functional Materials, EarlyView.
 Topological van der Waals contacts represent a new class of electrodes for 2D semiconductors, enabling precise control of the Schottky barrier height (SBH) and contact resistance (RC) through interlayer distance and orbital hybridization engineering. In Se‐based transition metal dichalcogenides, these contacts achieve an ultralow SBH of 7 meV, RC of 0.
Soheil Ghods   +15 more
wiley   +1 more source

Electrochemical Abuse‐Driven Thermal Runaway in Lithium‐Ion Batteries: Evolution From Beginning‐of‐Life to End‐of‐Life

open access: yesAdvanced Functional Materials, EarlyView.
Electrochemical abuse transforms thermal runaway behavior in lithium‐ion batteries. Through systematic decoupling of degradation mechanisms, this study reveals that lithium plating lowers the onset temperature by 10 °C, electrolyte consumption delays high‐temperature reactions, and capacity fade reduces total heat generation. These mechanistic insights
San Hwang   +12 more
wiley   +1 more source

Guided Waves Along a Density Interface in Partially Ionised Solar Plasmas. [PDF]

open access: yesSol Phys
Alshammari S   +4 more
europepmc   +1 more source

Mesoporous Carbon Thin Films with Large Mesopores as Model Material for Electrochemical Applications

open access: yesAdvanced Functional Materials, EarlyView.
Mesoporous carbon thin films possessing 70 nm mesopores are prepared on titanium substrates by soft templating of resol resins with a self‐synthesized poly(ethylene oxide)‐block‐poly(hexyl acrylate) block copolymer. A strategy to avoid corrosion of the metal substrate is presented, and the films are extensively characterized in terms of morphology ...
Lysander Q. Wagner   +9 more
wiley   +1 more source

Coexisting Rashba/Dresselhaus Spin Splitting in Solution‐Processed Bournonite Films Using Circular Photogalvanic Effect

open access: yesAdvanced Functional Materials, EarlyView.
Circular photogalvanic effect measurements and first‐principles calculations reveal spin‐splitting states in solution‐processed bournonite films (CuPbSbS3) due to structural and bulk inversion asymmetry. The results provide experimental confirmation of coexisting Rashba and Dresselhaus spin‐splitting states in this non‐centrosymmetric chalcogenide ...
Aeron McConnell   +5 more
wiley   +1 more source

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