Results 81 to 90 of about 276,614 (300)

IE WP 23/04 Prospective Voluntary Agreements to Escape Carbon Lock-in [PDF]

open access: yes
The paper looks for co-evolutionary policy responses to carbon lock-in – a persistent state that creates systemic market and policy barriers to carbon low technological alternatives.
Gregory C. Unruh   +2 more
core  

Hopfield Neural Networks for Online Constrained Parameter Estimation With Time‐Varying Dynamics and Disturbances

open access: yesInternational Journal of Adaptive Control and Signal Processing, EarlyView.
This paper proposes two projector‐based Hopfield neural network (HNN) estimators for online, constrained parameter estimation under time‐varying data, additive disturbances, and slowly drifting physical parameters. The first is a constraint‐aware HNN that enforces linear equalities and inequalities (via slack neurons) and continuously tracks the ...
Miguel Pedro Silva
wiley   +1 more source

Restitution in the context of institutional lock-in

open access: yesJournal for Perspectives of Economic Political and Social Integration, 2014
This article presents the problem of lack of restitution in Poland in the political, social and economic context. The author presents the theory of institutional lock-in, referring to the hitherto course of the political, social and economic ...
Załęczna Magdalena
doaj   +1 more source

Mechanochemical Synthesis and Characterization of Nanostructured ErB4 and NdB4 Rare‐Earth Tetraborides

open access: yesAdvanced Engineering Materials, Volume 27, Issue 6, March 2025.
ErB4 and NdB4 nanostructured powders are produced by mechanochemical synthesis. 5 h mechanical alloying and 4 M HCl acid leaching are used in the production. ErB4 and NdB4 powders exhibit maximum magnetization of 0.4726 emu g−1 accompanied with an antiferromagnetic‐to‐paramagnetic phase transition at about TN = 18 K and 0.132 emu g−1 with a maximum at ...
Burçak Boztemur   +5 more
wiley   +1 more source

Bistable Mechanisms 3D Printing for Mechanically Programmable Vibration Control

open access: yesAdvanced Engineering Materials, EarlyView.
This work introduces a 3D‐printed bistable mechanism integrated into tuned mass dampers (TMDs) for mechanically adaptive passive vibration suppression. Through optimized geometry, the bistable design provides adaptable vibration reduction across a broad range of scenarios, achieving effective vibration mitigation without complex controls or external ...
Ali Zolfagharian   +4 more
wiley   +1 more source

Trace Nickel Activated Biphasic Core‐CuOii/Shell‐CuOi Secondary Microspheres Enable Room Temperature Parts‐Per‐Trillion‐Level NO2 Detection

open access: yesAdvanced Engineering Materials, EarlyView.
An idea of designing novel sensors is proposed by creating appropriate Schottky barriers and vacancies between isomorphous Core‐CuOii/ Shell‐CuOi secondary microspheres and enhancing catalytic and spill‐over effects, and electronegativity via spontaneous biphasic separation, self‐assembly, and trace‐Ni‐doping.
Bala Ismail Adamu   +8 more
wiley   +1 more source

Capital Gains Taxes and Asset Prices: Capitalization or Lock-In? [PDF]

open access: yes
This paper examines the impact on asset prices from a reduction in the long-term capital gains tax rate using an equilibrium approach that considers both demand and supply responses.
Douglas A. Shackelford   +3 more
core  

Des concepts de frémissement, de point de bascule, de trajectoire, de transition, de transformation, de changement de régime et de résilience dans le tourisme : pourquoi « résilient » n’équivaut pas à « meilleur » et pourquoi le changement n’est pas toujours durable

open access: yesVia@
Les concepts de transition, de transformation, de point de bascule et de résilience sont devenus monnaie courante ces dernières années dans le contexte des crises qui ont frappé le tourisme. Cependant, bien que leur usage se soit répandu dans les milieux
C. Michael Hall
doaj   +1 more source

Collaboration in Local Economic Development: The Case of Toledo [PDF]

open access: yesUrbani Izziv, 2012
Many American communities place a high priority on retaining and attracting innovative industries. However, in most American metropolitan areas, the responsibility for local economic development is fragmented along jurisdictional and institutional lines.
Neil Reid, Bruce W. Smith
doaj  

The mutual interference vortex flow from a pair of in-line forced oscillating staggered arranged circular cylinders

open access: yesJournal of Fluid Science and Technology, 2014
In order to understand the aspect of the mutual interference flow from two circular cylinders, the visual observation experiment was performed. The cylinder setting conditions were three kinds of distance ratios (L/d=1.5, 2.5 and 5.5), and seven kinds of
Yoshifumi YOKOI, Keiko HIRAO
doaj   +1 more source

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