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Nature exploration, or ecotourism, has been an essential part of tourism, and today takes on a much broader meaning beyond tourism that includes conserving nature culture improving people’s lives, especially in the indigenous community. Community-based ecotourism (CBET) specific benefits closely related to sustainability natural ecosystems community development. CBET can be defined as nature-ba...
When aiming to ensure the long-term usage of digital objects, it is important to carefully select what information to keep, considering also what lives outside of them. In the PERICLES project we start by analysing how such information has been described in related work, considering common definitions of metadata, context, significant properties and environment, and we come to the conclusion th...
Technikfolgenabschätzung – Theorie und Praxis Nr. 3, 17. Jg., Dezember 2008 Seite 127 ligen Verfahren gegenüber. Stärken partizipativer TA seien, dass sie eine normative Bewertung von Technik möglich machten, gemeinwohlund nachhaltigkeitsorientiert seien. Schwächen lägen in den verhältnismäßig hohen Verfahrenskosten. Die „partizipative Technikgestaltung“ hingegen sei ergebnisorientierter und da...
Understanding the mechanism of formation of solid-electrolyte interphases (SEI) is key to the prospects of lithium metal batteries (LMB). Here, we investigate via cyclic voltammetry, impedance spectroscopy and chronoamperometry the role of kinetics in controlling the properties of the SEI generated from the reduction of propylene carbonate (PC, a typical solvent in LMB). Our observations are co...
Deposition of Li is a major safety concern existing in Li-ion secondary batteries. Here we perform the first in situ high spatial resolution measurement coupled with real-time quantitative electrochemistry to characterize SEI formation on gold using a standard battery electrolyte. We demonstrate that a dendritic SEI forms prior to Li deposition and that it remains on the surface after Li electr...
The formation of the alkyl carbonate-derived solid electrolyte interphase (SEI) enables the use of active materials operating at very cathodic potentials in Li-ion batteries. However, the SEI in semi-solid flow batteries results in a hindered electron transfer between a fluid electrode and the current collector restricting the operating potentials to ca. 0.8 V vs. Li/Li(+) for EC-based electrol...
Silicon is a promising negative electrode for secondary lithium-based batteries, but the electrochemical reversibility of particularly nanostructured silicon electrodes drastically depends on their interfacial characteristics, commonly known as the solid electrolyte interface (SEI). The beneficial origin of certain electrolyte additives or different binders is still discussed controversially ow...
nAG (newt-Anterrior Gradient) protein is the key mediator of regrowth of amputated limbs in salamanders. In a previous work in our lab, a new nAG gene (suitable for humans) was designed and cloned. The cloned vector was transfected into primary human fibroblasts. The expression of nAG in human primary fibroblasts was found to suppress collagen expression. The current study shows that local inje...
The (de)lithiation process of carbon-coated ZnFe2O4 has been investigated by in situ Raman spectroscopy. Solid electrolyte interphase (SEI) products were detected. Their detection may result from a temporary surface enhancement Raman effect from Zn nanoparticles formed in the conversion reaction at a potential that coincides with SEI formation.
This report supplements the SEI report Evaluation of the Rational Environment (CMU/SEI-88-TR-15) by Peter Feiler, Susan Dart, and Grace Downey. It contains the instantiation of the experiments presented in the Evaluation of Ada Environments by Nelson Weiderman, et al. (see [7]). Overall conclusions and analysis of the Rational Environment can be found in Evaluation of the Rational Environment.
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