Search results for "LTE"
showing 10 items of 4531 documents
Participation for just governance of food-system transition
2022
Sustainability transitions governance needs to be inclusive and participatory and the question of justice is crucial for making effective and acceptable changes possible. But how do we ensure adequate participation in governance processes and enable reconciliation between competing goals in relation to sustainability transitions? Transition management highlights the need for participatory and reflexive governance processes to enable sustainability transitions. However, due to participant selection and limitations in chosen approaches, deliberative and participatory forums may have difficulties ensuring justice and legitimacy. A systemic and practice-oriented perspective on deliberation poin…
CCDC 214223: Experimental Crystal Structure Determination
2003
Related Article: J.Kusz, H.Spiering, P.Gutlich|2001|J.Appl.Crystallogr.|34|229|doi:10.1107/S0021889801000462
CCDC 214224: Experimental Crystal Structure Determination
2003
Related Article: J.Kusz, H.Spiering, P.Gutlich|2001|J.Appl.Crystallogr.|34|229|doi:10.1107/S0021889801000462
CCDC 214222: Experimental Crystal Structure Determination
2003
Related Article: J.Kusz, H.Spiering, P.Gutlich|2001|J.Appl.Crystallogr.|34|229|doi:10.1107/S0021889801000462
CCDC 251390: Experimental Crystal Structure Determination
2004
Related Article: J.Kusz, H.Spiering, P.Gutlich|2004|J.Appl.Crystallogr.|37|589|doi:10.1107/S0021889804011720
CCDC 251393: Experimental Crystal Structure Determination
2004
Related Article: J.Kusz, H.Spiering, P.Gutlich|2004|J.Appl.Crystallogr.|37|589|doi:10.1107/S0021889804011720
CCDC 251394: Experimental Crystal Structure Determination
2004
Related Article: J.Kusz, H.Spiering, P.Gutlich|2004|J.Appl.Crystallogr.|37|589|doi:10.1107/S0021889804011720
High-frequency filtering for low-temperature thermal transport studies in nanostructures
2012
Filtering of external unwanted RF-noise and thermal noise generated at the high-temperature parts of the measuring circuit is essential for successful measurements of thermal transport of nanostructures at low temperatures. This is because of thermal decoupling of the systems, i.e. the extreme weakness of thermal conduction at sub-Kelvin temperatures, leading easily to overheating even with excess power in sub pW range. We have started to improve the noise filtering in our cryogenic dilution refrigerators, which can reach a base temperature of ~ 50 mK. The miniature low-pass filters were made from special RF sealing compound Eccosorb CR124, stainless steel powder of grain size 50 micrometer…
Lignin recovery from spent alkaline pulping liquors using acidification, membrane separation, and related processing steps: A Review
2019
The separation of lignin from the black liquor generated during alkaline pulping is reviewed in this article with an emphasis on chemistry. Based on published accounts, the precipitation of lignin from spent pulping liquor by addition of acids can be understood based on dissociation equilibria of weak acid groups, which affects the solubility behavior of lignin-related chemical species. Solubility issues also govern lignin separation technologies based on ultrafiltration membranes; reduction in membrane permeability is often affected by conditions leading to decreased solubility of lignin decomposition products and the presence of colloidal matter. Advances in understanding of such phenomen…
Use of nanostructures as oxygen carriers in chemical looping combustion
2013
The usage of fossils fuels has increased carbon dioxide emissions, and the carbon dioxide is responsible for global warming and sea level rising. One of the most promising ways of carbon capturing from the power plants is chemical looping combustion (CLC). CLC is based on the alternating oxidation and reduction reactions on the air and fuel reactors. Oxygen and energy needed for combustion between the reactors is transferred by an oxygen carrier. Oxygen carrier is usually made of metal or metal oxide. One big hindrance towards commercial use of CLC is slow reaction kinetics of oxygen carriers. One possible solution for the problem is to replace the conventional carriers by nanoscale oxygen …