TY - JOUR A1 - de Vera, Jean-Pierre Paul A1 - Alawi, Mashal A1 - Backhaus, Theresa A1 - Baqué, Mickael A1 - Billi, Daniela A1 - Böttger, Ute A1 - Berger, Thomas A1 - Bohmeier, Maria A1 - Cockell, Charles A1 - Demets, René A1 - de la Torre Noetzel, Rosa A1 - Edwards, Howell A1 - Elsaesser, Andreas A1 - Fagliarone, Claudia A1 - Fiedler, Annelie A1 - Foing, Bernard A1 - Foucher, Frédéric A1 - Fritz, Jörg A1 - Hanke, Franziska A1 - Herzog, Thomas H. A1 - Horneck, Gerda A1 - Hübers, Heinz-Wilhelm A1 - Huwe, Björn A1 - Joshi, Jasmin A1 - Kozyrovska, Natalia A1 - Kruchten, Martha A1 - Lasch, Peter A1 - Lee, Natuschka A1 - Leuko, Stefan A1 - Leya, Thomas A1 - Lorek, Andreas A1 - Martínez-Frías, Jesús A1 - Meessen, Joachim A1 - Moritz, Sophie A1 - Moeller, Ralf A1 - Olsson-Francis, Karen A1 - Onofri, Silvano A1 - Ott, Sieglinde A1 - Pacelli, Claudia A1 - Podolich, Olga A1 - Rabbow, Elke A1 - Reitz, Günther A1 - Rettberg, Petra A1 - Reva, Oleg A1 - Rothschild, Lynn A1 - Garcia Sancho, Leo A1 - Schulze-Makuch, Dirk A1 - Selbmann, Laura A1 - Serrano, Paloma A1 - Szewzyk, Ulrich A1 - Verseux, Cyprien A1 - Wadsworth, Jennifer A1 - Wagner, Dirk A1 - Westall, Frances A1 - Wolter, David A1 - Zucconi, Laura T1 - Limits of Life and the Habitability of Mars: The ESA Space Experiment BIOMEX on the ISS JF - Astrobiology N2 - BIOMEX (BIOlogy and Mars EXperiment) is an ESA/Roscosmos space exposure experiment housed within the exposure facility EXPOSE-R2 outside the Zvezda module on the International Space Station (ISS). The design of the multiuser facility supports—among others—the BIOMEX investigations into the stability and level of degradation of space-exposed biosignatures such as pigments, secondary metabolites, and cell surfaces in contact with a terrestrial and Mars analog mineral environment. In parallel, analysis on the viability of the investigated organisms has provided relevant data for evaluation of the habitability of Mars, for the limits of life, and for the likelihood of an interplanetary transfer of life (theory of lithopanspermia). In this project, lichens, archaea, bacteria, cyanobacteria, snow/permafrost algae, meristematic black fungi, and bryophytes from alpine and polar habitats were embedded, grown, and cultured on a mixture of martian and lunar regolith analogs or other terrestrial minerals. The organisms and regolith analogs and terrestrial mineral mixtures were then exposed to space and to simulated Mars-like conditions by way of the EXPOSE-R2 facility. In this special issue, we present the first set of data obtained in reference to our investigation into the habitability of Mars and limits of life. This project was initiated and implemented by the BIOMEX group, an international and interdisciplinary consortium of 30 institutes in 12 countries on 3 continents. Preflight tests for sample selection, results from ground-based simulation experiments, and the space experiments themselves are presented and include a complete overview of the scientific processes required for this space experiment and postflight analysis. The presented BIOMEX concept could be scaled up to future exposure experiments on the Moon and will serve as a pretest in low Earth orbit. KW - EXPOSE-R2 KW - BIOMEX KW - habitability KW - limits of life KW - extremophiles KW - Mars Y1 - 2019 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:526-opus4-12048 SN - 1557-8070 VL - 19 IS - 2 ER - TY - JOUR A1 - Ristić, Alenka A1 - Furbo, Simon A1 - Moser, Christoph A1 - Schranzhofer, Hermann A1 - Lazaro, Ana A1 - Delgado, Monica A1 - Peñalosa, Conchita A1 - Zalewski, Laurent A1 - Diarce, Gonzalo A1 - Alkan, Cemil A1 - Gunasekara, Saman N. A1 - Haussmann, Thomas A1 - Gschwander, Stefan A1 - Rathgeber, Christoph A1 - Schmit, Henri A1 - Barreneche, Camila A1 - Cabeza, Luiza A1 - Ferrer, Gerard A1 - Konuklu, Yeliz A1 - Paksoy, Halime A1 - Rammelberg, Holger A1 - Munz, Gunther A1 - Herzog, Thomas H. A1 - Jänchen, Jochen A1 - del Barrio, Elena Palomo T1 - IEA SHC Task 42 / ECES Annex 29 WG A1: Engineering and Processing of PCMs, TCMs and Sorption Materials JF - Energy Procedia N2 - An overview on the recent results on the engineering and characterization of sorption materials, PCMs and TCMs investigated in the working group WG A1 “Engineering and processing of TES materials” of IEA SHC Task 42 / ECES Annex 29 (Task 4229) entitled “Compact Thermal Energy Storage” is presented. KW - engineering KW - processing KW - PCM KW - TCM KW - sorption material Y1 - 2016 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:526-opus4-6629 SN - 1876-6102 VL - 91 SP - 207 EP - 217 ER - TY - JOUR A1 - Jänchen, Jochen A1 - Meessen, Joachim A1 - Herzog, Thomas H. A1 - Feist, M. A1 - de la Torre Noetzel, Rosa A1 - de Vera, Jean-Pierre Paul T1 - Humidity interaction of lichens under astrobiological aspects: the impact of UVC exposure on their water retention properties JF - International Journal of Astrobiology N2 - We quantitatively studied the hydration and dehydration behaviour of the three astrobiological model lichens Xanthoria elegans, Buellia frigida and Circinaria gyrosa by thermoanalysis and gravimetric isotherm measurements under close-to-Martian environmental conditions in terms of low temperature and low pressure. Additionally, the impact of UVC exposure on the isolated symbionts of B. frigida and X. elegans was studied by thermoanalysis and mass spectrometry as well as by gravimetric isotherm measurements. The thermal analysis revealed whewellite as a component of C. gyrosa which was not found in B. frigida and X. elegans. Neither the water retention nor the thermal behaviour of symbionts changed when irradiated with UVC under dry conditions. On the other hand, UVC irradiation of the wet mycobiont of B. frigida had a distinct impact on the hydration/dehydration ability which was not observed for the mycobiont of X. elegans. Possibly the melanin of B. frigida's mycobiont, that is not present in X. elegans, or a specifically damaged acetamido group of the chitin of B. frigida may be the sources of additional UVC-induced sorption sites for water associated with the UVC exposure. KW - lichen KW - Mars KW - thermoanalysis KW - UVC irradiation KW - water sorption isotherms Y1 - 2015 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:526-opus4-10837 SN - 1475-3006 VL - 14 IS - 3 SP - 445 EP - 456 ER - TY - JOUR A1 - Herzog, Thomas H. A1 - Jänchen, Jochen T1 - Adsorption Properties of Modified Zeolites for Operating Range Enhancement of Adsorption Heat Pumps through the Use of Organic Adsorptive Agents JF - Energy Procedia N2 - Faujasite zeolites with the highest possible Al-content and different cations as well as a dealuminated zeolite Y have been chosen to study the impact on the adsorption behavior in view of differed adsorptive agents for heat pumps or thermochemical storages. Our results show advantages and disadvantages for water, methanol or ethanol adsorption due to the structure of the anion skeleton, kind of cations and size of the adsorbat molecule. KW - heat pump KW - water adsorption KW - zeolite KW - ethanol KW - methanol Y1 - 2016 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:526-opus4-6614 SN - 1876-6102 VL - 91 SP - 155 EP - 160 ER - TY - JOUR A1 - Herzog, Thomas H. A1 - Jänchen, Jochen A1 - Kontogeorgopoulos, Eythymius M. A1 - Lutz, Wolfgang T1 - Steamed Zeolites for Heat Pump Applications and Solar Driven Thermal Adsorption Storage JF - Energy Procedia N2 - The influence of the dealumination degree of NaY with respect to the water adsorption properties was investigated by infrared spectroscopy, thermogravimetry and isotherm measurements. The modification of the samples is a result of a steaming process at different temperatures in dependence of time. It was found that dealumination controls the hydrophilic behavior of NaY and contributes to defined low desorption temperatures. Similar to microporous SAPO's steamed Y-zeolites can be used for low temperature applications of heat transformation and thermal adsorption storage. KW - dealumination KW - water adsorption KW - zeolite KW - adsorption heat pump KW - thermal adsorption storage Y1 - 2014 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:526-opus4-5951 SN - 1876-6102 VL - 48 SP - 380 EP - 383 ER -