9,274,268 Result(s)
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Is Germany on track to achieve 2030 climate and energy targets?
It is unclear how CO2 emissions in the German electricity sector will develop until 2030. On the one hand, the amendment in the Climate Change Act (as of August 2021) aims to tighten the emission reduction target...
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Open AccessThe Regional Innovation System and Smart Specialisation in the “energy region” Lusatia
Lusatia, a rural-peripheral region in Eastern Germany, currently faces structural change due to the planned phase-out of lignite mining. Against the backdrop of the EU Smart Specialisation (S2) strategy, struc...
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Kinderbonus 2021 vs. Kinderbonus 2022: Unterschiedliche Kompensationslösungen des Bundes und ihre Auswirkungen auf die Einnahmen der Länder (inklusive Gemeinden)
Der Bund hat in den letzten Jahren mehrmals einen Bonus aus Mitteln der Lohn- und Einkommensteuer für jedes Kind gezahlt, was aufgrund der prozentualen Beteiligung an diesen Steuern zu Mindereinnahmen bei Länd...
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Open AccessStärken und Schwächen regionaler Innovationssysteme in den vom Kohleausstieg betroffenen Regionen in Deutschland
Der Beitrag analysiert regionale Innovationssysteme in den Regionen Deutschlands, die aufgrund der Gesetzeslage bis zum Jahr 2038 den Ausstieg aus der thermischen Verwertung der Braunkohle vollzogen haben müss...
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Open AccessIntelligente Spezialisierung in der brandenburgischen Lausitz – eine Fallstudie
Intelligente Spezialisierung ist eine politische Handlungsempfehlung, die seit mehreren Jahren die Regionalpolitik der Europäischen Union bestimmt. Der Just Transition Fund, der die Transformation in den Kohle...
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Open AccessUnlocking local value-added opportunities in the energy transition in former coal regions—the case of Lusatia (Lausitz)
The main result of this study is that Lusatia, as an energy transition and structural change region, still has high expansion potential for photovoltaic and wind energy systems. In 2040, electricity production...
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On the Kato Problem for Elliptic Operators in Non-Divergence Form
We consider the Kato square root problem for non-divergence second order elliptic operators \(L =- \sum _{i,j=1}^{n}a_{ij} D_iD_j\) ...
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On Localization and the Spectrum of Multi-frequency Quasi-periodic Operators
We study multi-frequency quasi-periodic Schrödinger operators on \(\mathbb {Z}\) Z ...
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On the Stability of Shear Flows in Bounded Channels, II: Non-monotonic Shear Flows
We give a proof of linear inviscid dam** and vorticity depletion for non-monotonic shear flows with one critical point in a bounded periodic channel. In particular, we obtain quantitative depletion rates for...
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Open AccessWell-Posedness for the Extended Schrödinger–Benjamin–Ono System
In this work we prove that the initial value problem associated to the Schrödinger–Benjamin–Ono type system $$\begin{aligned} {\left\{ \begin{...
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Open AccessNew Conservation Laws and Energy Cascade for 1d Cubic NLS and the Schrödinger Map
We recall some recent results concerning the Initial Value Problem of 1d-cubic non-linear Schrödinger equation (NLS) and other related systems as the Schrödinger Map. For the latter we prove the existence of a...
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Ghost Effect from Boltzmann Theory: Expansion with Remainder
Consider the limit \(\varepsilon \rightarrow 0\) ε → ...
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Performance analysis of a novel medium temperature compressed air energy storage system based on inverter-driven compressor pressure regulation
In compressed air energy storage systems, throttle valves that are used to stabilize the air storage equipment pressure can cause significant exergy losses, which can be effectively improved by adopting invert...
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Regularity Theory of Quasilinear Elliptic and Parabolic Equations in the Heisenberg Group
This note provides a succinct survey of the existing literature concerning the Hölder regularity for the gradient of weak solutions of PDEs of the form ...
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The Probabilistic Scaling Paradigm
In this note we further discuss the probabilistic scaling introduced by the authors in (ar**v:1910.08492, 2019) and (Invent. Math. 228, 539–686, 2022). In particular we do a case study comparing the stochastic...
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On the Stability of Shear Flows in Bounded Channels, I: Monotonic Shear Flows
We discuss some of our recent work on the linear and nonlinear stability of shear flows as solutions of the 2D Euler equations in the bounded channel ...
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Tunneling for the \(\overline{\partial }\) -Operator
We study the small singular values of the 2-dimensional semiclassical differential operator $$P = 2\textrm{e}^{-\phi /h}\circ hD_{\overline{z}...
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Open AccessSolutions to the Magnetic Ginzburg–Landau Equations Concentrating on Codimension-2 Minimal Submanifolds
We consider the magnetic Ginzburg–Landau equations in a compact manifold N $$\begin{aligned} \left\{ \begin{array}{l} -\varepsilon ^2{\varDelta...
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Open AccessTowards direct superlubricity and superlow wear via amino modification of polyhydroxy alcohol solutions
Friction remains as the primary mode of energy dissipation and components wear, and achieving superlubricity shows high promise in energy conservation and lifetime wear protection. The results in this work dem...
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Optimization of Artificial Viscosity in Production Codes Based on Gaussian Regression Surrogate Models
To accurately model flows with shock waves using staggered-grid Lagrangian hydrodynamics, the artificial viscosity has to be introduced to convert kinetic energy into internal energy, thereby increasing the en...
