Results 31 to 40 of about 8,417 (227)

Human‐Scale Rotating Magnetic Field Delivery With Permanent Magnets Under Anatomic and Robotic Constraints

open access: yesAdvanced Robotics Research, EarlyView.
Rotating magnetic fields (RMFs) are widely used for microrobot propulsion and control. We show that RMF generation with permanent magnets is mechanically feasible for many limb and intracranial applications but becomes constrained for thoracic targets.
Tuan‐Anh Le   +4 more
wiley   +1 more source

Hedging, arbitrage and optimality with superlinear frictions [PDF]

open access: yesThe Annals of Applied Probability, 2013
In a continuous-time model with multiple assets described by càdlàg processes, this paper characterizes superhedging prices, absence of arbitrage, and utility maximizing strategies, under general frictions that make execution prices arbitrarily unfavorable for high trading intensity.
Guasoni P, Rasonyi M
openaire   +4 more sources

Existence of weak solutions to superlinear elliptic systems without the Ambrosetti-Rabinowitz condition

open access: yesElectronic Journal of Differential Equations, 2020
In this article, we study the existence of the weak solution for superlinear elliptic equations and systems without the Ambrosetti-Rabinowitz condition.
Xiaohui Wang, Peihao Zhao
doaj  

How much is the whole really more than the sum of its parts? 1 ⊞ 1 = 2.5: superlinear productivity in collective group actions. [PDF]

open access: yesPLoS ONE, 2014
In a variety of open source software projects, we document a superlinear growth of production intensity (R ~ c(β)) as a function of the number of active developers c, with a median value of the exponent β ≃ 4/3, with large dispersions of β from slightly ...
Didier Sornette   +2 more
doaj   +1 more source

Intrinsic Dual‐Phase Regulated GeSe2 Nanoparticles Triggered by Ball‐Milling Treatment for Photonic Multi‐Valued Logic Circuits

open access: yesAdvanced Science, EarlyView.
We report the solid‐state ball milling, a traditional, reliable, mass‐productive material processing, to prepare the air‐stable and dual‐phase GeSe2‐x nanoparticles with extended photodetection feasibility toward optical‐wavelength regions. We further display photonic multi‐valued logic (MVL) circuit through the employment of a hybrid PMMA/GeSe2‐x ...
An‐Ting Tsai   +8 more
wiley   +1 more source

Pairs of positive solutions for p-Laplacian equations with sublinear and superlinear nonlinearities which do not satisfy the AR-condition

open access: yes, 2009
We consider a nonlinear Dirichlet problem driven by the p-Laplacian differential. The righthand-side nonlinearity, exhibits a (p − 1)-sublinear term of the form m(z)|x| r−2 x, r < p (concave term), and a Carathéodory term f(z, x) which is (p − 1 ...
Rocha, EM   +3 more
core   +1 more source

Second-Order Damped Differential Equations with Superlinear Neutral Term: New Criteria for Oscillation

open access: yesAxioms
This paper focuses on establishing new criteria to guarantee the oscillation of solutions for second-order differential equations with a superlinear and a damping term.
Asma Al-Jaser   +3 more
doaj   +1 more source

Existence of solutions for the Dirichlet problem with superlinear nonlinearities [PDF]

open access: yes, 1997
summary:In this paper we establish the existence of nontrivial solutions to \[\frac{\mathrm d}{{\mathrm d}t}L_{x^{\prime }}(t,x^{\prime }(t))+V_{x} (t,x(t))=0,\quad x(0)=0=x(T),\] with $V_x$ superlinear in $x$
Neuberger, John M   +4 more
core   +1 more source

Two types of ground state solutions for a periodic Schrodinger equations with zero on the boundary of the spectrum

open access: yesElectronic Journal of Differential Equations, 2015
This article concerns the Schrodinger equation $$\displaylines{ -\Delta u+V(x)u=f(x, u), \quad \text{for } x\in\mathbb{R}^N,\\ u(x)\to 0, \quad \text{as } |x| \to \infty\,.
Dongdong Qin, Xianhua Tang
doaj  

A Dual‐Branch Flux‐Based Extended Memristor Model With Machine‐Learning‐Assisted Calibration

open access: yesAdvanced Electronic Materials, EarlyView.
Multilayer oxide memristors integrated in crossbar arrays are described through a dual‐branch, flux‐controlled compact model. A three‐stage calibration workflow combining Latin hypercube sampling, Bayesian optimization, and gradient‐based refinement extracts device parameters from experimental data.
Davide Rossetti   +6 more
wiley   +1 more source

Home - About - Disclaimer - Privacy