@article{EttweinRohrerVanzoLangthaleretal., author = {Ettwein, Frederike and Rohrer-Vanzo, Valentina and Langthaler, Georg and Werner, Andrea and Stern, Tobias and Moser, Olivia and Leitner, Raimund and Regenfelder, Katja}, title = {Consumer's perception of high gloss furniture: instrumental gloss measurement versus visual gloss evaluation}, series = {European Journal of Wood and Wood Products}, journal = {European Journal of Wood and Wood Products}, number = {75}, pages = {1009 -- 1016}, abstract = {The overall impression of a glossy surface is an important parameter for consumer's choice of wooden products. A new gloss parameter, called gloss impression, which calculates a reflexion structure image, was developed in order to complement the measurements made by industrial glossmeters, which are highly limited in describing the visual human perception, for example the commonly used gloss value. The objective of this study is to investigate to what extent the new measurement method of surface gloss is applicable to describe human gloss perception, in other words, to validate the new method. In order to analyse the concordance of the new methodology with human perception, 113 na{\"i}ve observers had to rank the glossiness of eight series of black and white samples. The results were compared to both gloss impression and gloss value. The statistical evaluation by means of Pearson's chi-squared tests revealed that the new method has an overall better correspondence to human perception than the gloss value. For black samples, it describes human perception significantly better than the gloss value and gives better results than those which would be achieved by guessing.}, subject = {Perception}, language = {en} } @article{ListSchwarzbauerBraunetal., author = {List, Julia and Schwarzbauer, Peter and Braun, Martin and Werner, Andrea and Langthaler, Georg and Stern, Tobias}, title = {Naive wood-supply predictions: Comparing two case studies from Austria}, series = {Austrian Journal Of Forest Science}, volume = {2016}, journal = {Austrian Journal Of Forest Science}, number = {2}, pages = {87 -- 110}, abstract = {Forest owner associations act as middlemen in the cooperative marketing of timber: they are supplied with small and fluctuating quantities of timber and sell bundled amounts to industrial consumers. Knowledge of the future quantity of monthly dis-tributable timber is of particular importance for planning, but remains a subject of uncertainty. This work presents models to predict wood supply based on a simple database. Models were tested in two case-study regions, which substantially differ Seite 88 J. List, P. Schwarzbauer, M. Braun, A. Werner, G. Langthaler, T. Sternin framework conditions for timber marketing. In each of the regions in Styria and Burgenland, different model types and subtypes were superior. It was concluded that models which determine timber supply in one forest association, are only restrictedly suitable to predict timber supply in another one.}, subject = {Forest Science}, language = {en} } @article{HaydnWernerStern, author = {Haydn, Annemarie and Werner, Andrea and Stern, Tobias}, title = {Assessing the potential price range for bioactive food additives from wood by using the van Wesstendorp method}, series = {Journal of the Austrian Society of Agricultural Economics}, journal = {Journal of the Austrian Society of Agricultural Economics}, number = {24}, abstract = {Plant-based food additives in functional foods can improve consumer's nutrient uptake and promote optimal health effects. Considering the ongoing development of new technologies for extracting bioactive substances the potential pricing of these substances plays a major role in assessing the overall profitability of new technologies. The study therefore assessed potential prices for not yet commercially existing bioactive substances from wood by carrying out a business-to-businesssurvey. Applying the van Westendorp method the study identified a potential price in context of varying product properties like different health claims or increasing purities. The Indifference Price of 101.5 €/kg can be considered as a guide value to assess the overall profitability. The study identified potential price ranges for such products and provided information that can be used for according pricing strategies. © 2014, OGA-Osterreichische Gesellschaft fur Agrarokonomie.}, subject = {Additives}, language = {en} } @article{FairbrotherBoydLyuetal., author = {Fairbrother, Andrew and Boyd, Matthew and Lyu, Yadong and Avenet, Julien and Illich, Peter and Wang, Yu and Kempe, Michael and Dougherty, Brian and Bruckman, Laura and Gu, Xiaohong}, title = {Differential degradation patterns of photovoltaic backsheets at the array level}, series = {Solar Energy}, volume = {2018}, journal = {Solar Energy}, number = {163}, subject = {Photovoltaics}, language = {de} } @article{MolinSchneiderRohdinetal., author = {Molin, Andreas and Schneider, Simon and Rohdin, Patrik and Moshfegh, Bahram}, title = {Assessing a regional building applied PV potential - Spatial and dynamic analysis of supply and load matching}, series = {Renewable Energy 91}, volume = {2016}, journal = {Renewable Energy 91}, number = {91}, pages = {261 -- 274}, subject = {Renewable Energy}, language = {en} } @article{FechnerMaul, author = {Fechner, Hubert and Maul, Lukas}, title = {Wie im Jahr 2025 zwei Millionen Menschen in Wien leben werden - {\"U}berlegungen zum Geb{\"a}ude der Zukunft}, series = {Zukunft Stadt. Wirtschaftspolitische Visionen f{\"u}r die urbanen Zentren von morgen}, journal = {Zukunft Stadt. Wirtschaftspolitische Visionen f{\"u}r die urbanen Zentren von morgen}, subject = {Vienna}, language = {de} } @article{LeonhartsbergerPeppoloni, author = {Leonhartsberger, Kurt and Peppoloni, Mauro}, title = {Small Wind Power in Austria}, series = {World Wind Energy Association Wind Bulletin}, journal = {World Wind Energy Association Wind Bulletin}, subject = {Wind Power}, language = {en} } @article{PruegglerPruegglerWirl, author = {Pr{\"u}ggler, Natalie and Pr{\"u}ggler, Wolfgang and Wirl, Franz}, title = {Storage and Demand Side Management as power generator's strategic instruments to influence demand and prices}, series = {Energy}, journal = {Energy}, number = {Vol. 36}, pages = {6308 -- 6317}, subject = {Energy}, language = {en} } @article{PruegglerBremberger, author = {Pr{\"u}ggler, Natalie and Bremberger, Christoph}, title = {Grid regulation in Austria: smart grids incentives or disincentives?}, series = {E \& I ELEKTROTECHNIK UND INFORMATIONSTECHNIK}, journal = {E \& I ELEKTROTECHNIK UND INFORMATIONSTECHNIK}, number = {Vol 128, 10}, pages = {336 -- 341}, subject = {Smart Grids}, language = {en} } @article{SchidlerAdensamDaRocha, author = {Schidler, Susanne and Adensam, Heidi and Da Rocha, K.}, title = {Berufliche Qualifizierung im Umweltsektor mit Schwerpunkt Erneuerbare Energien / Neue Energietechnologien unter antizipierender Ber{\"u}cksichtigung des Nationalen Qualifikationsrahmens (NQR). Schwerpunkt: Integration von Nachhaltigkeitsaspekten}, series = {AMS Foschungsnetz / AMS INFO 160 / Arbeitsmarktservice {\"O}sterreich}, journal = {AMS Foschungsnetz / AMS INFO 160 / Arbeitsmarktservice {\"O}sterreich}, subject = {Professional Qualification}, language = {de} } @article{DelucaBermejoMoratinosGruenbichleretal., author = {Deluca, Marco and Bermejo Moratinos, Ra{\´u}l and Gr{\"u}nbichler, Hannes and Pressler, Volker and Danzer, Robert and Nickel, Klaus G.}, title = {Raman spectroscopy for the investigation of indentation-induced domain texturing in lead zirconate titanate piezoceramics}, series = {Scripta materialia}, journal = {Scripta materialia}, number = {63(2)}, pages = {343 -- 346}, subject = {Materials}, language = {en} } @article{SchidlerAdensamDaRocha, author = {Schidler, Susanne and Adensam, Heidi and Da Rocha, K.}, title = {Zur Integration von Nachhaltigkeitsaspekten bei beruflichen Qualifizierungsmaßnahmen im Umweltsektor. Ergebnisse einer aktuellen Studie des AMS {\"O}sterreich}, series = {AMS info / Arbeitsmarktservice {\"O}sterreich}, journal = {AMS info / Arbeitsmarktservice {\"O}sterreich}, subject = {Professional Qualification}, language = {de} } @article{Prueggler, author = {Pr{\"u}ggler, Natalie}, title = {A cost-based approach to evaluate future grid structure options}, series = {International Journal of Distributed Energy Resources}, journal = {International Journal of Distributed Energy Resources}, subject = {Grid}, language = {en} } @article{SchidlerJandlBuechsenmeister, author = {Schidler, Susanne and Jandl, Robert and B{\"u}chsenmeister, Richard}, title = {Praktikable Kriterien objektivieren}, series = {Forstzeitung}, journal = {Forstzeitung}, number = {120(9)}, subject = {Sustainability}, language = {de} } @article{Schidler, author = {Schidler, Susanne}, title = {Nachhaltige Entwicklung - Beispiele aus dem Bereich Erneuerbare Rohstoffe / Energien}, series = {AMS Forschungsnetzwerk / Arbeitsmarktservice {\"O}sterreich, Abt. Arbeitsmarktforschung und Berufsinformation / AMS INFO}, journal = {AMS Forschungsnetzwerk / Arbeitsmarktservice {\"O}sterreich, Abt. Arbeitsmarktforschung und Berufsinformation / AMS INFO}, subject = {Sustainability}, language = {de} } @article{BhatGanglbauerBosch, author = {Bhat, Karthik Subramanya and Ganglbauer, Johanna and Bosch, Elina}, title = {Techno-economic simulation and evaluation of scalable 'energy cells' locally generating renewable energy}, series = {e \& i Elektrotechnik und Informationstechnik}, journal = {e \& i Elektrotechnik und Informationstechnik}, number = {139}, pages = {612 -- 620}, abstract = {The ERA-Net SES project Regional Renewable Energy Cells (R2EC) [1] aims at developing a scalable system for decentralized, interacting 'energy cells' with a high concentration of locally generated renewable energy. 'Energy cells' are essentially Renewable Energy Communities (ECs) in the European context. The system aims at maximizing the utilization of locally generated renewable energy through Electrical Storage (ES) as well as high-electric applications like e‑heating, Heat Pumps (HPs), and E‑Vehicles (EVs). The system is also designed to interact with other energy cells locally, thus, improving the utilization of locally generated energy. A variety of different adjacent energy cells in three countries, Austria (AT), Belgium (BE), and Norway (NO), are analyzed, and the results are used for the development of regional and renewable energy cell systems. This approach aims at developing tailor-made solutions that meet the different local and regional requirements and the electrical energy demand of the observed energy cells. A unique opportunity is created, as the three countries are at varying levels of regional development in the field of energy communities, and the regional requirements and conditions differ significantly. A comprehensive investigation of the technical and economic viability of the ECs in the three regions is conducted on a simulation level. The technical simulation results show an increased self-consumption of individual users and the overall cell in all of the observed testbeds, while the economic analysis shows economic benefits at varying levels in each of the observed testbeds. The implemented R2EC system ascertains both technical and economic viability in the observed testbeds.}, subject = {Energy Cells}, language = {en} } @article{Lang, author = {Lang, Moritz}, title = {The mechanism of scale-invariance}, series = {Automatica}, volume = {140}, journal = {Automatica}, number = {June 2022}, abstract = {A system is invariant with respect to an input transformation if we can transform any dynamic input by this function and obtain the same output dynamics after adjusting the initial conditions appropriately. Often, the set of all such input transformations forms a Lie group, the most prominent examples being scale-invariant (, ) and translational-invariant () systems, the latter comprising linear systems with transfer function zeros at the origin. Here, we derive a necessary and sufficient normal form for invariant systems and, by analyzing this normal form, provide a complete characterization of the mechanism by which invariance can be achieved. In this normal form, all invariant systems (i) estimate the applied input transformation by means of an integral feedback, and (ii) then apply the inverse of this estimate to the input before processing it in any other way. We demonstrate our results based on three examples: a scale-invariant "feed-forward loop", a bistable switch, and a system resembling the core of the mammalian circadian network.}, subject = {Invariant systems}, language = {en} } @article{KubingerPeschakWoeberetal., author = {Kubinger, Wilfried and Peschak, Bernhard and W{\"o}ber, Wilfried and Sulz, Clemens}, title = {Bildgebende Sensorsystems f{\"u}r robotische Systeme in der Agrar- und Landtechnik}, series = {e\&i Elektrotechnik und Informationstechnik}, volume = {134}, journal = {e\&i Elektrotechnik und Informationstechnik}, number = {6}, pages = {316 -- 322}, subject = {Sensor}, language = {de} } @article{HagauerMatlschweigerTippelreitheretal., author = {Hagauer, Josef and Matlschweiger, Ulrich and Tippelreither, Christian and Lutz, Markus and Hribernig, Thomas and Lackner, Maximilian}, title = {Controlling Metal Fires through Cellulose Flake Blanketing Followed by Water Spray Cooling}, series = {Fire}, volume = {5}, journal = {Fire}, number = {3}, doi = {10.3390/fire5030083}, abstract = {The traditional methods of fighting metal fires are not always safe for firefighters. The sand and salts that are thrown onto the fire to suffocate the flames can lead to splashes of molten metal, putting the firefighters and the surroundings at risk. A novel process is described where magnesium fires are brought under control using a simple two-step process. First, coated cellulose flakes, which contain approx. 30\% inorganic salts, are blown onto the fire from a distance of several meters. Due to its low bulk density, the material settles smoothly on the fire and immediately covers the flames for several seconds. Before the hot metal can break through this cover, a fine water spray is applied to the fire. The water spray wets the top layer of the cellulose flakes, which will begin to char from the bottom. The water evaporates from within the cellulose flake layer and withdraws heat. It was observed that no hydrogen is formed and that this technique can safely control fires. It is judged that 90 kg of flakes could safely bring a pile of 75 kg of burning Mg flakes under control. By using a pneumatic conveying unit for the flakes, firefighters can effectively and efficiently cover the flames from a safe distance. This novel method could be recommended to firefighters in industrial magnesium processing plants, as well as local firefighters in the vicinity of such plants.}, subject = {magnesium fire}, language = {en} } @article{DilerYanarOezdemiretal., author = {Diler, Abdulkerim and Yanar, Mete and {\"O}zdemir, Veysel Fatih and Aydin, Recep and Kaynar, {\"O}zg{\"u}r and Palangi, Valiollah and Lackner, Maximilian and Ko{\c{c}}yigit, R{\i}dvan}, title = {Effects of Slaughter Age of Holstein Friesian Bulls on Meat Quality: Chemical Composition, Textural Characteristics, Sensory Attributes and Fatty Acid Profile}, series = {Foods}, volume = {12}, journal = {Foods}, number = {1}, doi = {10.3390/foods12010158}, abstract = {This study aimed to investigate the effects of slaughter age (young vs. old), muscle type (Longissimus dorsi (LD), Gluteus medius (GM)) and fat deposits (kidney knob and channel fat, subcutaneous fat, intramuscular fat) on chemical, organoleptic, textural characteristics and fatty acid composition of Holstein Friesian bull meat. For this purpose, the carcasses of 26 Holstein Friesian bulls that had been fattened on the same private farm were assigned to two experimental groups based on their age at slaughter: a young group (YG) (average age: 17.0 ± 1.0 months old) and an old group (OG) (average age: 22.0 ± 1.0 months old). The percentage of crude protein, panel tenderness score, polyunsaturated fatty acid (PUFA) and saturated fatty acid (SFA) content, the PUFA/SFA ratio and the hypocholesterolemic fatty acid (DFA)/hypercholesterolemic fatty acid (OFA) ratio of the bull carcasses decreased significantly with increasing slaughter age. By contrast, the OFA content of the carcasses significantly increased (p < 0.05) with increasing slaughter age. Advanced slaughter age resulted in lower panel tenderness scores. Additionally, the meat of the bulls in the OG was considered to be less healthy because of the less desirable fatty acid composition and nutritional indices, such as the PUFA/SFA and hypocholesterolemic/hypercholesterolemic ratios, compared to the meat from the bulls in the YG. Furthermore, the intramuscular fat and internal fat contained high percentages of PUFA and SFA and high PUFA/SFA and hypocholesterolemic/hypercholesterolemic ratios. Interestingly, the percentage of OFA content in the internal and intramuscular fat tissues decreased with increasing slaughter age. In conclusion, this study provided evidence that slaughter age and muscle and fat type are essential sources of variations in the textural characteristics, sensory panel attributes and fatty acid profile of meat from Holstein Friesian bulls.}, subject = {fatty acid profile}, language = {en} }