Leibniz University of Hanover

About: Leibniz University of Hanover is a education organization based out in Hanover, Niedersachsen, Germany. It is known for research contribution in the topics: Finite element method & Computer science. The organization has 14283 authors who have published 29845 publications receiving 682152 citations.

Science for action at the local landscape scale

Abstract: For landscape ecology to produce knowl- edge relevant to society, it must include considerations of human culture and behavior, extending beyond the natural sciences to synthesize with many other disci- plines. Furthermore, it needs to be able to support landscape change processes which increasingly take the shape of deliberative and collaborative decision making by local stakeholder groups. Landscape ecol- ogy as described by Wu (Landscape Ecol 28:1-11, 2013) therefore needs three additional topics of investigation: (1) the local landscape as a boundary object that builds communication among disciplines and between science and local communities, (2) iterative and collaborative methods for generating transdisciplinary approaches to sustainable change, and (3) the effect of scientific knowledge and tools on local landscape policy and landscape change. Collec- tively, these topics could empower landscape ecology to be a science for action at the local scale.

High‐frequency analysis of foreign exchange interventions: what do we learn?

Abstract: The high-frequency analysis of foreign exchange dynamics is helpful in order to better identify the impact of central bank interventions. Evidence robustly shows that interventions do indeed move the exchange rate level in the desired direction. Interventions increase volatility in the short run as they are regarded as information; but they can reduce volatility overall. Ways of transmission may reach beyond the signalling channel and also include the portfolio balance and a damping channel. Finally, interventions are more successful if they obey certain conditions, such as being coordinated among central banks and going with the market and fundamentals.

Theoretical Study of Li Migration in Lithium–Graphite Intercalation Compounds with Dispersion-Corrected DFT Methods

Abstract: Structural, energetic, electronic, and defect properties of lithium–graphite intercalated compounds (LiC6n (n = 1, 2)) are investigated theoretically with periodic quantum-chemical methods. Calculated properties obtained with a gradient-corrected density functional theory (DFT) method and a dispersion-corrected DFT method (DFT-D3-BJ) are compared. The DFT-D3-BJ method gives better agreement with experiment for the structural parameters and Li intercalation energy compared to the uncorrected DFT approach, showing that interlayer interactions due to the van der Waals forces play an effective role in graphite and LiC6n compounds. In agreement with the literature, the calculated density of states (DOS) show that graphite is metallic with a low DOS at the Fermi level, whereas LiC6n compounds have a high DOS at the Fermi level. Between the considered point defects, VLi and Lii, the energy needed to form Li point defects is smaller if solid Li is used as reference. A moderate relaxation is observed for the atoms...