cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Tokenisierung von Rechten an Immobilien: die größte Anlageklasse der Welt auf dem Weg zum flexibel gestaltbaren Investitions- oder Konsumgut
Creators: name: Dekas, Jakob
Publisher: name: TU Wien
Year: 2022
Subjects: subject: blockchain
subject: Immobilien
subject: dlt
subject: Tokenisierung

description: Die Blockchain-Technologie ist, zusammen mit der DLT (Distributed Ledger Technology) und anderen vertrauenswürdigen Technologien grundsätzlich dazu in der Lage, erheblichen Einfluss auf die Immobilienbranche auszuüben. Mittels Tokenisierung, auch als fälschungssichere Digitalisierung umschreibbar, können Rechte und Ansprüche aller Art in digitalen Token umgewandelt und gehandelt werden und dadurch die Art und Weise wie wir Immobilien erwerben, nutzen, übertragen oder besitzen grundlegend ändern.Die Arbeit geht dabei auf mögliche Anwendungsfelder und Geschäftsmodelle ein, die unter den herkömmlichen, traditionellen Bedingungen so nicht umsetzbar wären. Neben den unzähligen Möglichkeiten und dem technischen Potenzial soll aber auch auf Gefahren, Unzulänglichkeiten und Risiken eingegangen werden.Dazu zählen vor allem die teilweise unzureichende, teilweise international nicht abgestimmte Gesetzgebung auf allen Ebenen, von der zivilrechtlichen Einordnung von Token über das analoge Grundbuch bis hin zur Steuergesetzgebung, welche eine zweifelsfreie und somit rechtssichere Einordnung nur schwer zulässt. Als positives Beispiel wird eine kurze Übersicht über die entsprechende Gesetzgebung in Liechtenstein gegeben.Abschließend wird die zukünftige Entwicklung eingeschätzt und mit jener des Internets verglichen, wo im Anfangsstadium im Praxisnutzens ein Quantensprung kaum zu erkennen war, was sich mit einer breiten, massenhaften Anwendung der Technologie aber geändert hat.
description: Blockchain technology, together with DLT and other trusted technologies, is fundamentally capable of having a significant impact on the real estate industry. Through tokenisation, also known as tamper-proof digitisation, rights and entitlements of all kinds can be converted intodigital tokens and traded, fundamentally changing the way we acquire, use, transfer, or own real estate.This Paper addresses possible fields of application and business models that would not befeasible under conventional, traditional conditions. In addition to the countless possibilities and the technical potential, the dangers, shortcomings, and risks will be also addressed.These include, above all, the partly insufficient and partly internationally uncoordinated legislation at all levels, from the civil law classification of tokens to vastly analogue landregisters to insufficient tax legislation, which makes it difficult to classify tokens clearly and thus with legal certainty. As a positive example, a brief overview of the corresponding legislation in Liechtenstein is given.Finally, the future development is assessed and compared with that of the Internet, where a major leap in practical use was hardly recognisable at the early stage, which has changed with the large-scale, massive application of the technology.
Danmarks første Brintbusser
Creators: name: Bødker, Sandra
Publisher: name: Proceedings from the Annual Transport Conference at Aalborg University
Year: 2020

description: Region Nordjylland og Aalborg Kommune har et fælles ønske om at gå forrest i den grønne omstilling af Danmarks tunge transport, herunder den kollektive trafik. Derfor har parterne indkøbt 3 brintbusser og et brinttankanlæg, der skal testes i en 3-årig periode. Busserne udleder hverken CO2 eller skadelige partikler, og bidrager dermed til Danmarks mål om, at al kollektiv trafik skal være emissions-frit inden år 2030. Brint er nyskabende, og øget brug af det klimavenlige brændstof er et vigtigt skridt i den grønne omstilling og et omdrejningspunkt i fremtidens energisystem.
description: Proceedings from the Annual Transport Conference at Aalborg University, Vol. 27 No. 1 (2020): Proceedings from the Annual Transport Conference at Aalborg University
Øresundsmetro giver et mere robust transportsystem i Greater Copenhagen til gavn for grøn mobilitet, klimavenlig godstransport og Københavns Lufthavn
Creators: name: Zinn, Jarl
Publisher: name: Proceedings from the Annual Transport Conference at Aalborg University
Year: 2020

description: Københavns Kommune har sammen med Malmø stad siden 2012 undersøgt mulighederne for en hurtig, højfrekvent metroforbindelse mellem de to byer. Analyserne viser, at en Øresundsmetro kan øge et mere sammenhængende arbejdsmarked og skabe mulighed for at flytte gods fra vej til jernbane, når Femernforbindelsen forventeligt åbner i 2028 og dermed en mere klimavenlig godstransport. Hertil understøttes og skabes et mere robust transportsystem omkring Københavns Lufthavn.
description: Proceedings from the Annual Transport Conference at Aalborg University, Vol. 27 No. 1 (2020): Proceedings from the Annual Transport Conference at Aalborg University
Vestbyen i Aalborg – Fremtidens bydel med fokus på mobilitet, klima og byliv
Creators: name: Ivarsen, Jan Ingemann
name: Høj, Brian
name: Obeling, Esben
Publisher: name: Proceedings from the Annual Transport Conference at Aalborg University
Year: 2020

description: Vestbyen skal være fremtidens grønne bæredygtige bydel i Aalborg. Visionen imødekommer både udfordringer og udfolder samtidig bydelens mange potentialer. Omdrejningspunktet er bæredygtig mobilitet i ordets bredeste forstand. I Vestbyen skal den bæredygtige mobilitet udvikles og samtænkes med rekreativ klimatilpasning og attraktive byrum. Vestbyen forventes i de kommende år at blive et testlaboratorie for fremtidens mobilitetsløsninger og partnerskaber. Med nye løsninger skal bydelen invitere til en langt mere bæredygtig mobilitetsadfærd, for til gengæld at skabe plads til øget livskvalitet, bedre byrum og robuste klimaløsninger.
description: Proceedings from the Annual Transport Conference at Aalborg University, Vol. 27 No. 1 (2020): Proceedings from the Annual Transport Conference at Aalborg University
Weniger Verkehr, mehr Lebensqualität
Creators: name: Rauber, Julius
name: Lell, Otmar
name: Muster, Viola
Publisher: name: Umweltbundesamt
Year: 2022
Subjects: subject: Kommunikation
subject: Mobilitätsverhalten
subject: Suffizienz
subject: Kommunen
subject: Mobilitätsverhalten; Verkehrswende
subject: Wirtschaft | Konsum
subject: Nachhaltigkeit | Strategien | Internationales
subject: Verkehr

description: Das Thema Suffizienz kann gerade im Bereich Mobilität sehr emotional werden: Gestaltungsmöglichkeiten für mehr Lebensqualität durch weniger Verkehr, können vor allem bei der Umsetzung und Einführung von Maßnahmen (z.B. verkehrsberuhigte, autofreie Zonen) zu Problemen in der Akzeptanz führen. Dazu fasst der Leitfaden Erkenntnisse der Verhaltenswissenschaften zusammen und gibt Kommunen anhand von Beispielen Hinweise für eine erfolgreiche Kommunikation von Suffizienzmaßnahmen um Bedenken und Hürden abzubauen. Ergänzend wurden zehn SharePics erarbeitet, um suffiziente Mobilität in sozialen Medien einfach, prägnant und überzeugend zu platzieren. Der Leitfaden wurde im Rahmen des Forschungsvorhabens "Erarbeitung einer Suffizienzstrategie für den Verkehrssektor und ihre erfolgreiche Kommunikation" erstellt. Quelle: www.umweltbundesamt.de
description: Das Thema ⁠Suffizienz⁠ kann gerade im Bereich Mobilität sehr emotional werden: Gestaltungsmöglichkeiten für mehr Lebensqualität durch weniger Verkehr, können vor allem bei der Umsetzung und Einführung von Maßnahmen (z.B. verkehrsberuhigte, autofreie Zonen) zu Problemen in der Akzeptanz führen. Dazu fasst der Leitfaden Erkenntnisse der Verhaltenswissenschaften zusammen und gibt Kommunen anhand von Beispielen Hinweise für eine erfolgreiche Kommunikation von Suffizienzmaßnahmen um Bedenken und Hürden abzubauen. Ergänzend wurden zehn SharePics erarbeitet, um suffiziente Mobilität in sozialen Medien einfach, prägnant und überzeugend zu platzieren. Der Leitfaden wurde im Rahmen des Forschungsvorhabens „Erarbeitung einer Suffizienzstrategie für den Verkehrssektor und ihre erfolgreiche Kommunikation“ erstellt.
title: Configuration of a flexible and efficient sCO2 cycle for fossil power plant
Creators: name: Cagnac, Albannie
name: Mecheri, Mounir
name: Bedogni, Stefano
Publisher: name: DuEPublico: Duisburg-Essen Publications online, University of Duisburg-Essen, Germany
Year: 2019
Subjects: subject: 62
subject: 620

description: As part of the sCO2-Flex project, funded from the European Union’s Horizon 2020 research and innovation program under grant agreement N° 764690, the consortium has set about developing a fossil fuel power cycle that allows both more flexibility and less emissions than currently operating power cycles. For this objective, the consortium has decided to work on a supercritical CO2 (sCO2) cycle in order to be able to gain in modularity in terms of size reduction, in efficiency because it is more efficient than a water-steam cycle, in flexibility because the design will be simplified and above all will take into account future constraints from the design stage. 
EDF was responsible for providing the consortium with the most interesting fossil fuel cycle configurations from a flexibility and performance point of view. To this end, an iterative approach has been adopted and will be presented later in the paper. 
First, 21 different cycle configurations were modelled in order to assess their impact on the performance for coal power plant application. Based on the expertise of the EDF R&D team, a selection of a few cycles has been made to be presented to different experts in order to determine: the industrial capacity to obtain equipment with the expected performance, the operability of this type of cycle according to these technical characteristics (the more complex a cycle will be to operate, the greater the risk of failure). 
In a second step, all the current flexibility constraints were synthesized for the cycles in operation, as well as the influential factors to guarantee this flexibility (operating ramp of such a component, constraints related to the reliability of a component...). Then, on the basis of future energy mix scenarios and interviews with operators, we also drew insight about the future evolution of these constraints. 
Finally, on the basis of the first selection of cycles and future flexibility constraints, cycle configurations were selected within the consortium, taking into account also the potential industrial difficulties and costs for the development of components, in particular for the boiler, which is a key element for future markets for this type of cycle.
description: Conference Proceedings of the European sCO2 Conference3rd European Conference on Supercritical CO2 (sCO2) Power Systems 2019: 19th-20th September 2019, p. 271
Dekarbonisering af vejgodstransport - Lastbiler
Creators: name: Gudmundsson, Henrik
Publisher: name: Proceedings from the Annual Transport Conference at Aalborg University
Year: 2020

description: Danmark har fået et nyt ambitiøst klimamål som kræver en markant grøn omstilling i alle sektorer. Vejgodstransport med lastbiler er et af de områder hvor udledningerne er vokset og hvor omstillingen mangler at komme i gang. CONCITO har med støtte fra Energifonden i 2019-2020 gennemført en tværgående analyse af en række mulige spor i omstilling og dekarbonisering lastbiltransporten i Danmark. Herunder effektivisering (bedre kapacitetsudnyttelse), mere klimavenlige flydende brændstoffer, biogas, samt elektrificering (vi batterier, kørestrøm og/eller evt. brint). Det mest lovende spor vurderes samlet set at være elektrificering. Der er dog en række barrierer og begrænsninger for at rulle elektrificeringen hurtigt ud. Analysen peger derfor på nødvendigheden af en flerstrenget politisk strategi, som bl.a. bør omfatte både nationale tiltag og initiativer i forhold til EU-reguleringen. Præsentationen vil gennemgå analysens hovedresultater og de centrale politiske anbefalinger, og sætte dem i relation til andre nylige indspil, herunder rapporter fra Klimarådet og Regeringens Klimapartnerskab for Landtransport.
description: Proceedings from the Annual Transport Conference at Aalborg University, Vol. 27 No. 1 (2020): Proceedings from the Annual Transport Conference at Aalborg University
Gedenkfeier anlässlich der Bestattung von Frau Professor Fanny Fleiner-Veith, Mittwoch, den 27. März 1957 im Krematorium in Zürich
Creators: name: Fueter, Karl
Publisher: name: Steno-Verlag
Year: 1957
Subjects: subject: 920 Biografien, Genealogie, Insignien
subject: Nachruf
subject: Fleiner, Fanny
subject: Zürich

description: Inhalt: Ansprache von Pfarrer Dr. h.c. Karl Fueter
Shared mobility and public transport – foe or friend?
Creators: name: Finsveen, Hanne
name: Pitera, Kelly
name: Hoen, Fredrik Solvi
Publisher: name: Proceedings from the Annual Transport Conference at Aalborg University
Year: 2020

description: Shared mobility services have appeared in the city picture, offering a promising solution to sustainable mobility challenges. However, literature shows that they often do not replace car travels, but instead public transit and walking. Through a stated preference survey, information is gathered about how commuters would respond to shared mobility integrated with public transport in their daily travel to work. The objective is to identify if and how it is possible to use shared mobility in connection with public transport to replace personal vehicle use by improving the last mile of the commute, from the bus stop to the office. Results show that every fifth car commuter would leave the car at home and travel by bus if they were guaranteed a free ride with an e-scooter or shuttle from the bus stop to the office. Price was found to be an important attribute while availability of the vehicle was less important. For half of the respondents, infrastructural improvements would not change their stated preferences. E-scooter was the preferred shared vehicle followed by shuttle and then e-bike.
description: Proceedings from the Annual Transport Conference at Aalborg University, Vol. 27 No. 1 (2020): Proceedings from the Annual Transport Conference at Aalborg University
title: Modelling and performance analysis of a supercritical CO2 system for high temperature industrial heat to power conversion at off-design conditions
Creators: name: Marchionni, Matteo
name: Saravi, Samira Sayad
name: Bianchi, Giuseppe
name: Tassou, Savvas A.
Publisher: name: DuEPublico: Duisburg-Essen Publications online, University of Duisburg-Essen, Germany
Year: 2019
Subjects: subject: 62
subject: 620

description: Industrial processes are currently characterized by thermal energy losses through high temperature exhausts or effluents (above 300°C) that, on a global scale, account for nearly 11.4% of their primary energy consumption, namely 12.1 EJ. For these high temperature exhausts, conventional waste heat to power conversion systems based on bottoming thermodynamic cycles are not very suitable since most of the state of the art working fluids are not able to perform safely and efficiently at high temperatures. Supercritical Carbon Dioxide (sCO2) power systems allow to overcome these limitations because of the chemical and thermo-physical properties of the working fluid. In order to provide insights on the behavior of sCO2 systems, this paper presents the development of a one-dimensional numerical model of a low capacity (50 kWe) simple regenerated system for medium to high temperature waste heat recovery applications. The unit is equipped with single-shaft radial turbomachinery and different heat exchanger technologies such as micro-tube, printed circuit, plate, etc. Flue gas and water are used as heat source and sink respectively. At nominal conditions, i.e. for a flue gas mass flow rate of 1.0 kg/s at 650°C, the unit operates at a cycle pressure ratio of 1.7, generating 50 kWe with a thermal efficiency of 20%. The paper first discusses the modelling methodology, including turbomachinery and heat exchanger models implementation, and then assesses the steady-state performance of the unit at design and off-design operating conditions. From the simulations carried out operating maps of the unit have been obtained to form the baseline for the setting up of control strategies for the sCO2 system. The results show that the system can generate up to 75 kWe for a heat source mass flow rate of 1.2 kg/s and heat source temperature of 700°C.
description: Conference Proceedings of the European sCO2 Conference3rd European Conference on Supercritical CO2 (sCO2) Power Systems 2019: 19th-20th September 2019, p. 281
Programvalg i signalanlæg baseret på Floating Car Data
Creators: name: Pedersen, Dennis Bjørn
name: Lyster, Rune
Publisher: name: Proceedings from the Annual Transport Conference at Aalborg University
Year: 2020

description: I foråret 2019 blev der gennemført et projekt omkring brugen af Floating Car Data (GPS data) til brug for styring af signalanlæg. Projektet blev gennemført i et samarbejde mellem Gate 21, Vallenbæk Kommune og Technolution, og omfattede styringen af signalanlægget i krydset Vallensbæk Torvevej/Park Allé i Vallensbæk Kommune. Projektet demonstrerede et potentiale for at forbedre tragikafviklingen ved anvendelse af Floarting Car Data, og på den baggrund arbejdes der i øjeblikket på et nyt projekt omkring en udvidelse af projektet , således at løsningen vil omfatte ialt 5 signalanlæg. Signalanlæggene omfatter både det kommunale og det statslige vejnet. Parterne i det nye projekt er Vejdirektoratet, Vallensbæk Kommune og Technolution. Det forventes at kunne præsentere det færdige projekt samt foreløbige resultater på Trafikdage 2020
description: Proceedings from the Annual Transport Conference at Aalborg University, Vol. 27 No. 1 (2020): Proceedings from the Annual Transport Conference at Aalborg University
Acoustic frequency comb generation using oscillations of gas bubbles in liquids and biological tissues
Creators: name: Nguyen, Bui Quoc Huy
Publisher: name: Swinburne
Year: 2024

description: A new approach to the generation of acoustic frequency combs (AFCs) using gas bubble oscillations—signals with spectra containing equidistant coherent peaks is proposed.  AFCs are essential for many sensing and measurement applications, where the established technology of optical frequency combs (OFCs) suffer from fundamental physical limitations.  The proposed model of the bubble-based AFC possesses essential characteristics of optical frequency combs and thus, similar to their optical counterparts, can be used to measure various physical, chemical and biological quantities.
Samkørsel i hverdagen – Den Franske Model
Creators: name: Guasco, Clement
Publisher: name: Proceedings from the Annual Transport Conference at Aalborg University
Year: 2020

description: Det stigende antal biler til persontransport medfører øget trængsel på vejene, parkeringsproblemer og CO2-udledning i Danmark. Problemet mærkes særligt omkring større byer, hvor der forventes en stigning i trængslen på 149 procent frem mod 2030. Udover det er mobilitet på landet udfordret af, at flere vælger bilen, hvilket medfører stigende omkostninger for trafikselskaberne og en ringere service for passagererne. Artiklen præsenterer en oversigt over den franske model (regulatoriske rammer, integration i trafikselskaber og virksomheder og konkrete eksempler), fremskridtet for FDMs nuværende samkørselprojekter og et muligt roadmap for samkørsel i Danmark inspireret af den franske model. Artiklens nyhedsværdi er, at den indhenter viden og erfaring fra Europas førende land indenfor samkørsel, som FDM vil arbejde hen imod i de kommende år.
description: Proceedings from the Annual Transport Conference at Aalborg University, Vol. 27 No. 1 (2020): Proceedings from the Annual Transport Conference at Aalborg University
The psychological burden of waiting for procedures and patient-centred strategies that could support the mental health of wait-listed patients and caregivers during the COVID-19 pandemic : A scoping review
Creators: name: Gagliardi, Anna R.
name: Yip, Cindy Y. Y.
name: Irish, Jonathan
name: Wright, Frances C.
name: Rubin, Barry
name: Ross, Heather
name: Green, Robin
name: Abbey, Susan
name: McAndrews, Mary Pat
name: Stewart, Donna E.
Publisher: name: Wiley Open Access
Year: 2021

description: Background: Waiting for procedures delayed by COVID-19 may cause anxiety and related adverse consequences. Objective: To synthesize research on the mental health impact of waiting and patient-centred mitigation strategies that could be applied in the COVID-19 context. Methods: Using a scoping review approach, we searched 9 databases for studies on waiting lists and mental health and reported study characteristics, impacts and intervention attributes and outcomes. Results: We included 51 studies that focussed on organ transplant (60.8%), surgery (21.6%) or cancer management (13.7%). Most patients and caregivers reported anxiety, depression and poor quality of life, which deteriorated with increasing wait time. The impact of waiting on mental health was greater among women and new immigrants, and those of younger age, lower socio-economic status, or with less-positive coping ability. Six studies evaluated educational strategies to develop coping skills: 2 reduced depression (2 did not), 1 reduced anxiety (2 did not) and 2 improved quality of life (2 did not). In contrast, patients desired acknowledgement of concerns, peer support, and periodic communication about wait-list position, prioritization criteria and anticipated procedure date. Conclusions: Findings revealed patient-centred strategies to alleviate the mental health impact of waiting for procedures. Ongoing research should explore how to optimize the impact of those strategies for diverse patients and caregivers, particularly in the COVID-19 context. Patient or Public Contribution: Six patients and four caregivers waiting for COVID-19- delayed procedures helped to establish eligibility criteria, plan data extraction and review a draft and final report.
title: Thermoeconomic modeling and analysis of sCO2 Brayton cycles
Creators: name: Penkuhn, Mathias
name: Tsatsaronis, George
Publisher: name: DuEPublico: Duisburg-Essen Publications online, University of Duisburg-Essen, Germany
Year: 2019
Subjects: subject: 62
subject: 620

description: Supercritical CO2 (sCO2) power cycles provide the possibil-ity to significantly improve power generation from fossil fuels and renewable sources considering thermodynamic eÿciency, economics, and flexibility. In the recent years, the increased atten-tion for this technology led to numerous e˙orts to improve cycle eÿciency considering several potential applications. Nevertheless, more complex cycle designs which provide the opportunity to increase the cycle eÿciency have to be economically justified. However, due to the current state of research and development, and the prospective commercialization in the future, no final con-clusions in terms of cycle design can be made because reliable economic data are not available.
The scope of the present study is the analysis and comparison of several generic sCO2 Brayton cycle designs for power genera-tion in terms of their economic feasibility. Due to the large number of highly uncertain or nonexistent economic parameters in case of sCO2 Brayton cycles, an approach is used that reformulates the economic problem by introducing dimensionless numbers and ex-ploiting thermoeconomic similitude. It provides a first possibility to analyze the economic impact of employing di˙erent cycle im-provement options like reheating, recompression, and intercooling using the simple recuperated cycle design as a reference. Finally, the possibility to further generalize the findings is discussed.
description: Conference Proceedings of the European sCO2 Conference3rd European Conference on Supercritical CO2 (sCO2) Power Systems 2019: 19th-20th September 2019, p. 310
title:   The Toyota Production System (TPS) in a Non-Traditional Manufacturing Environment
title: The Role of Standardization in the Fast-Food industry
titleType: Subtitle
Creators: name: McCracken, Kevin
Publisher: name: University of Kentucky Libraries
Year: 2022
Subjects: subject: FOS: Materials engineering
valueUri: http://www.oecd.org/science/inno/38235147.pdf

description: The Toyota Production System (TPS), also known as Lean Manufacturing (LM), was founded in the automotive industry and has contributed to Toyota’s decades of success. This has brought much attention to TPS and how this system may be implemented in other industries. Focusing on the TPS foundational element of standardization, this study examines the impact of target cycle time (TCT) on process fluctuation in a fast-food environment. In order to observe the effects of TCT, team members within 3 production lines were timed. Times were measured before and after the addition of a TCT to the Standardized Work (STW) in place. It was found that fluctuation was reduced by an overall average of 9 seconds per process after the addition of TCT to STW, suggesting that the addition of a TCT to STW may reduce process fluctuation within the production line.

Additionally, the relationship between standardization and the flexibility of the standardized system within the restaurant was examined in dynamic market conditions, specifically during the COVID-19 pandemic. When sales percentage change in 2019 were compared to 2020 and a local competitor, the restaurant showed an overall increase. This growth may suggest a relationship between standardization and system flexibility.
description: © 2022 Kevin McCracken
title: Experimental testing of a 1MW sCO2 Turbocompressor
Creators: name: Rapp, Logan Madacey
name: Stapp, David
Publisher: name: DuEPublico: Duisburg-Essen Publications online, University of Duisburg-Essen, Germany
Year: 2019
Subjects: subject: 62
subject: 620

description: The Nuclear Energy Systems Laboratory (NESL) Brayton Laboratory at Sandia National Laboratories has been at the forefront of supercritical carbon dioxide (sCO2) power cycle development since 2007 when internal R&D funds were used to investigate the stability of sCO2 as a working fluid for power cycles. Since then, Sandia has been a leader in research and development of sCO2 power cycles through government funded research and by partnering with industry to design and test components necessary for commercialization of sCO2 Brayton cycles. Peregrine Turbine Technologies (PTT) is a small business working to commercialize sCO2 power cycles with their proprietary thermodynamic cycles, heat exchangers, and turbomachinery designs. Under a Small Business Innovation Research (SBIR) program with the United States Air Force Research Laboratory, PTT has designed a novel motorless turbocompressor for sCO2 power cycles. In 2017, Sandia purchased the first sCO2 turbocompressor from PTT and installed it into the 1-MW thermal turbomachinery development platform at Sandia. PTT and Sandia have worked together to experimentally test the turbocompressor to the limits of the development platform (932 F @ 2500 psi). This report will detail the design of the turbomachinery development platform, the novel process used to start the turbomachinery, and the experimental results to date. The report will also look at lessons learned throughout the process of constructing and operating an experimental sCO2 loop.
description: Conference Proceedings of the European sCO2 Conference3rd European Conference on Supercritical CO2 (sCO2) Power Systems 2019: 19th-20th September 2019, p. 290
title: Supercritical CO2 power cycle projects at GTI
Creators: name: Macadam, Scott
name: Kutin, Michael
name: Follett, William
name: Subbaraman, Ganesan
Publisher: name: DuEPublico: Duisburg-Essen Publications online, University of Duisburg-Essen, Germany
Year: 2019
Subjects: subject: 62
subject: 620

description: GTI (Gas Technology Institute) is leading several sCO2 power cycle technology development projects. Three distinct projects are highlighted in this paper: (1) The 10 MWe Supercritical Transformational Electric Power (STEP) Pilot; (2) An indirectly heated coal/biomass-based Oxy-fired Pressurized Fluidized Bed Combustor (Oxy-PFBC); and (3) A novel high pressure oxy-combustor for direct-fired sCO2 power cycles. All three projects have significant systems engineering, optimization, operations analysis, controls, and partnership/ collaboration requirements. 
 In the STEP Pilot Project, a team led by GTI, Southwest Research Institute (SwRI), and General Electric Global Research, along with the University of Wisconsin and Natural Resources Canada, is executing a project to design, construct, commission, and operate an integrated and reconfigurable 10 MWe sCO2 Pilot Plant Test Facility located at SwRI’s San Antonio, Texas campus. This project is a significant step toward commercialization of sCO2 cycle based power generation and will inform the performance, operability, and scale-up to commercial power plants. The pilot plant design, procurement, fabrication, and construction are ongoing. By the end of this six-year project, the operability of the sCO2 power cycle will be demonstrated and documented starting with facility commissioning as a simple recuperated cycle configuration initially operating at a 500oC turbine inlet temperature and progressing to a recompression closed Brayton cycle technology (RCBC) configuration operating at 715oC. 
 In the indirectly-heated Oxy-PFBC system, sCO2 is heated via a set of hermetically-sealed heat exchangers embedded in a footerbubbling bed of solid fuel (coal and/or biomass) particles that are combusted in a mixture of oxygen and recycled CO2 at about 8 bar. The resulting compact combustor lowers the capital cost, enables higher plant efficiencies and reduces CO2 capture costs. 
 
 In the sCO2 oxy-combustor project, GTI is designing a novel high-pressure oxy-combustor for direct-fired sCO2 cycles. The design concept, which is derived from rocket engine injectors, has potential to offer performance improvements over more traditional gas turbine-derived combustors.
description: Conference Proceedings of the European sCO2 Conference3rd European Conference on Supercritical CO2 (sCO2) Power Systems 2019: 19th-20th September 2019, p. 300
title: Study of autonomous control system for S-CO2 power cycle
Creators: name: Oh, Bong Seong
name: Lee, Jeong Ik
Publisher: name: DuEPublico: Duisburg-Essen Publications online, University of Duisburg-Essen, Germany
Year: 2019
Subjects: subject: 62
subject: 620

description: Various control strategies for supercritical carbon dioxide cycle (S-CO2 cycle) have been developed. A combination of bypass and inventory controls is regarded as one of the most important and efficient strategy. When only an inventory control is actuated, the system pressure changes significantly to maintain velocity and temperature at approximately constant level. Hence, an off-design performance of turbomachinery is comparable to on-design performance so that inventory control could allow S-CO2 cycles to maintain high thermal efficiency during part load operating conditions. Nevertheless, an inventory control alone is expected to have issues of delayed response, compressor surge and unexpected system shut down. Therefore, a bypass control should compensate the slow response time of an inventory control even though the bypass control results in undesirable cycle performance at off-design operating conditions. A quantitative assessment of inventory control for an S-CO2 cycle has been rarely conducted because non-ideal thermodynamic properties of S-CO2 make the assessment of appropriate inventory for the selected operating conditions to be difficult. In this paper an S-CO2 cycle performance inventory tanks are modeled to assess various control schemes in terms of response and efficiency.
description: Conference Proceedings of the European sCO2 Conference3rd European Conference on Supercritical CO2 (sCO2) Power Systems 2019: 19th-20th September 2019, p. 345
title: Probabilistic technique for solving computational problem: application of Ant Colony Optimization (ACO) to find the best sCO2 Brayton cycle configuration
Creators: name: Mecheri, Mounir
name: Qiao, Zhaohui
Publisher: name: DuEPublico: Duisburg-Essen Publications online, University of Duisburg-Essen, Germany
Year: 2019
Subjects: subject: 62
subject: 620

description: This papers studies the potential of a probabilistic technique to solve complex problems such as thermodynamic cycle layout optimization. The Ant Colony Optimization (ACO) algorithm has been used to find an optimal configuration of a supercritical CO2 Brayton Cycle (sCO2-BC) for a specified application (coal power plant). 
This optimization is done by coupling an existing process simulation software (ProSimPlus) and an existing optimization solver (MIDACO). In this study, more than a 1000 cycle configurations have been analyzed regarding performance, costs and the value of the Levelized Cost Of Electricity (LCOE). 
Main results show that the optimal sCO2-BC configuration depends on the optimization criteria (objective function).
description: Conference Proceedings of the European sCO2 Conference3rd European Conference on Supercritical CO2 (sCO2) Power Systems 2019: 19th-20th September 2019, p. 319
title: Cooling system cost and performance models for economic sCO2 plant optimization of cooling with respect to cold sCO2 temperature
Creators: name: Pidaparti, Sandeep R.
name: White, Charles W.
name: O'Connel, Andrew
name: Weiland, Nathan T.
Publisher: name: DuEPublico: Duisburg-Essen Publications online, University of Duisburg-Essen, Germany
Year: 2019
Subjects: subject: 62
subject: 620

description: Several studies have shown that the efficiency of sCO2 power cycles can be significantly improved by reducing the cold sCO2 temperature, which increases the sCO2 density at the inlet to the compressor and reduces its specific power requirement. Due to the near-ambient CO2 critical temperature of 31 °C, the effects of ambient temperature on sCO2 plant performance are far more significant than for steam Rankine cycles, thus cooling systems tailored to sCO2 cycle operation are necessary to realize the benefits that are possible through sCO2 cold temperature management. 
To this end, cost and performance models for four different types of sCO2 cooling systems are presented in this work. These systems cover direct and indirect (via water) cooling of the sCO2 working fluid, as well as wet and dry cooling techniques to approach ambient wet and dry bulb temperatures, respectively. The heat and mass transfer modeling of these systems are briefly reviewed along with the cost scaling algorithms that have been developed from a combination of literature, cost modeling software, and vendor quotes. 
The results of these efforts are a set of sCO2 cooling system spreadsheet modeling tools that are available for download by the sCO2 community. The cooling system models can be used by cycle designers to weigh the benefits and drawbacks of various cooling systems in terms of equipment cost, auxiliary power requirements, and water usage. Detailed modeling and capital cost estimation of these cooling systems as a function of ambient conditions and assumed temperature approaches also allows for optimization of the cold sCO2 temperature to minimize the overall cost of electricity (COE) for a given plant location, accounting for the increased cooling equipment cost required to achieve this temperature. Preliminary economic optimization using these spreadsheet models shows that cooling system optimization improves indirect sCO2 plant efficiency by 3-4 percentage points, and reduces COE by up to 8%, demonstrating the value and utility of this approach.
description: Conference Proceedings of the European sCO2 Conference3rd European Conference on Supercritical CO2 (sCO2) Power Systems 2019: 19th-20th September 2019, p. 332
title: Experimental investigations and simulations of the control system in supercritical CO2 loop
Creators: name: Vojacek, Ales
name: Melichar, Tomas
name: Hájek, Petr
name: Doubek, Frantisek
name: Hoppe, Timm
Publisher: name: DuEPublico: Duisburg-Essen Publications online, University of Duisburg-Essen, Germany
Year: 2019
Subjects: subject: 62
subject: 620

description: Conference Proceedings of the European sCO2 Conference3rd European Conference on Supercritical CO2 (sCO2) Power Systems 2019: 19th-20th September 2019, p. 89
Ship-owner Response to Carbon Taxes: Industry and Environmental Implications
Creators: name: Cariou, Pierre
name: Halim, Ronald A.
name: Rickard, Bradley J.
name: Cariou, Pierre
name: Halim, Ronald A.
name: Rickard, Bradley J.
Publisher: name: Unknown
Year: 2022
Subjects: subject: Environmental Economics and Policy
subject: agricultural trade
subject: bunker levy
subject: carbon tax
subject: environmental policy
subject: maritime economics
subject: gravity model

description: We consider the effects of a maritime bunker levy on ship-owner profits, trade, and emissions. Standard and augmented gravity models are employed using data from 2016 to estimate the impact of a change in transit time and transit cost on grain and soybean trade flows and on vessel speed. Results for a bunker levy of 50 USD/tonne of fuel, or less, stress that it will not trigger a change in the optimal speed of the vessel which is contrary to most theoretical models that predict an increase in fuel costs will always lead to a reduction in speed and carbon emissions. For markets where the shipowners pass the tax on to final consumers, it is also optimal to keep the same speed (and transit time) as long as the tax is equal to, or less than, 100 USD/tonne. Bunker levies exceeding 100 USD/tonne may be needed to reduce carbon when trade flows are sensitive to trade costs and transport time, as may be the case for many agricultural commodities.
title: Thermo-economic heat exchanger optimization for Electro-Thermal Energy Storage based on transcritical CO2 cycles
Creators: name: Sanz Garcia, Luis
name: Jacquemoud, Emmanuel
name: Jenny, Philipp
Publisher: name: DuEPublico: Duisburg-Essen Publications online, University of Duisburg-Essen, Germany
Year: 2019
Subjects: subject: 62
subject: 620

description: The Electro Thermal Energy Storage (ETES) based on thermodynamic cycles using transcritical CO2 was first developed by ABB corporate research [1]. The target being to set up a large-scale site-independent electricity storage system. The system has been reviewed and developed further by MAN-ES to an energy management system capable of storing not only electricity, but heat and cold as well. 
The paper first presents the basic thermodynamic cycle layout, characterized by its heat pump and heat engine concept. Special attention is paid to the high-pressure (i.e. high-temperature) side of the system, where the rapid changes of sCO2 in heat capacity result in additional modeling complexity. The major challenge lays in the design of heat exchanger (HEX) that provides the best trade-off between cost and performance. On top of that, the novelty of using the same heat exchanger(s) for both charging and discharging cycles on high and low pressure sides of the cycles represents an interesting solution to improve the performance to cost ratio of the entire system. However, this comes at the expense of potential oversizing of the heat exchanger(s). The paper presents the steady state model developed to simulate both thermodynamic cycles. Using a constrained optimization approach, the solver is guided towards solutions where the required heat exchanger surface for both cycles is similar. The consequences of using the same heat exchanger for both cycles are presented for different ETES configurations, allowing identifying significant investment cost reductions and in some cases even improving the entire system’s performance. A significant reduction of up to 50% heat exchanger cost can be reached. Additionally, 14% of plant cost for a given round-trip efficiency can be obtained for certain system configurations.
description: Conference Proceedings of the European sCO2 Conference3rd European Conference on Supercritical CO2 (sCO2) Power Systems 2019: 19th-20th September 2019, p. 353
ФОТОТЕРАПИЯ В ДЕРМАТОЛОГИИ: КЛАССИЧЕСКИЕ И НОВЕЙШИЕ МЕТОДЫ ЛЕЧЕНИЯ ХРОНИЧЕСКИХ ДЕРМАТОЗОВ
Creators: name: Пулатова, С.Х.
name: Бабаджанов, О.А.
Publisher: name: Zenodo
Year: 2025

description: Фототерапия занимает важное место в лечении хронических дерматозов, таких как псориаз, атопический дерматит и витилиго. В статье рассматриваются основные механизмы действия различных методов фототерапии, включая узкополосную средневолновую ультрафиолетовую терапию (УФБ-311 нм), ПУВА-терапию и терапию длинноволновым ультрафиолетом (УФА-1). Обсуждаются клинические исследования, подтверждающие эффективность этих методов, а также их применение в российской и зарубежной практике. Особое внимание уделено современным подходам и перспективам использования фототерапии в дерматологии.
Intelligent reversible bus lane in Gävle
Creators: name: Pedersen, Dennis Bjørn
Publisher: name: Proceedings from the Annual Transport Conference at Aalborg University
Year: 2020

description: The Swedish City of Gävle was hardly able to cope in recent years with the numbers of visitors to events and sports matches in the city. A consortium including Technolution was commissioned to develop an intelligent reversible bus lane. This lane is now finished – and it involves Dutch technology, such as DVM-Exchange and MobiMaestro.
description: Proceedings from the Annual Transport Conference at Aalborg University, Vol. 27 No. 1 (2020): Proceedings from the Annual Transport Conference at Aalborg University
A Socio-Technical User Based Perspective for Urban Transport Solutions - The Fjordbus Case
Creators: name: Luengas, Camilo Andrés Perdomo
Publisher: name: Proceedings from the Annual Transport Conference at Aalborg University
Year: 2020

description: In the city of Aalborg, Denmark, several organisations have been working on the design of an autonomous passenger ferry (Fjordbus) to connect two urban areas separated by the sea. The Fjordbus is an ongoing technical innovation project coordinated by the Center for Logistik og Samarbejde (CLS) and partly sponsored by the Port of Aalborg and by the ShippingLab project. The primary purpose of the Fjordbus is to become a transport solution to connect the population of Aalborg and Nørresundby.
description: Proceedings from the Annual Transport Conference at Aalborg University, Vol. 27 No. 1 (2020): Proceedings from the Annual Transport Conference at Aalborg University
Fodgængerfelter eller støtteheller?
Creators: name: Lønstrup, Niklas T.
name: Hermansen, Brit H. O.
Publisher: name: Proceedings from the Annual Transport Conference at Aalborg University
Year: 2020

description: Op gennem 90’erne og 00’erne opstod en stadig pågående diskussion omkring, hvordan fodgængere kan sikres de bedste betingelser for at kunne krydse trafikerede veje sikkert. Diskussionen kom hurtigt til at handle om, hvad den sikreste krydsningsfacilitet var; fodgængerfelter, hvor cyklister og de motoriserede køretøjer har vigepligt, men sjældent overholder den eller støtteheller hvor fodgængerene har vigepligt, og derfor må vente til der er frit for biler? Denne diskussion har medvirket til at flere af datidens kommuner og amter helt eller delvist erstattede samtlige fodgængerfelter med støtteheller. Dog var det eneste belæg for dette en svensk ph.d., der påviste at det i nogle tilfælde i Sverige var bedre at anvende støtteheller fremfor fodgængerfelter. Dette projekt undersøger dette postulat under danske vilkår ved at foretage et konflikt- og adfærdsstudie ved fire lokaliteter med fodgængerfelter og fire med støtteheller. Konflikterne defineres i dette projekt ud fra en kombination af en adfærdsbaseret definition og en tidsbaseret definition. Den adfærdsbaserede definition bestemt ud fra to modificerede fokusgruppeinterview med fagpersoner, mens den tidsbaserede definition er fastsat ud fra lignende konfliktstudier fra Norden. Ud fra resultaterne fundet i dette projekt kan der ikke ses en statistisk signifikant forskel i risikoen ved de to lokalitetstyper. Dog er der undervejs observeret forskelle i både fodgængernes og bilisternes adfærd.
description: Proceedings from the Annual Transport Conference at Aalborg University, Vol. 27 No. 1 (2020): Proceedings from the Annual Transport Conference at Aalborg University
Ny cykel- og gangbro over Limfjorden - en bro for hele Aalborg
Creators: name: Høj, Brian
name: Nissen, Thomas
name: Tolstrup, Alex
Publisher: name: Proceedings from the Annual Transport Conference at Aalborg University
Year: 2020

description: En ny bro over Limfjorden for cyklister og fodgængere har været diskuteret i flere år. Det er en diskussion og et ønske, der er aktualiseret af den markante byomdannelse, der foregår på begge sidder af Limfjorden og de østlige havnefronter. Men en bro over Limfjorden for gående og cyklister er et stort projekt og en stor beslutning. Kan det overhovedet lade sig gøre – og hvad koster det? Giver det mening og hvorfor? For at belyse dette, har Aalborg Kommune og Stigsborg P/S anmodet NIRAS og Gehl Architects om at afdække potentielle muligheder og effekter af en ny cykel- gangbro mellem Nørresundby og Aalborg.
description: Proceedings from the Annual Transport Conference at Aalborg University, Vol. 27 No. 1 (2020): Proceedings from the Annual Transport Conference at Aalborg University
Umweltbundesamt: Schluss mit ineffizienter Software und Datenverarbeitung!
Creators: name: Lutz, Harald
Publisher: name: My University
Year: 2022

description: Wie kann digitale Infrastruktur nachhaltiger und ökologischer werden? Dieser Frage - mit besonderem Fokus auf die Software-Entwicklung und auf Rechenzentren - geht das Umweltbundesamt Berlin (UBA) zusammen mit Partnern aus Wissenschaft und Industrie nach. Vor Kurzem wurden erste Zwischenergebnisse des Forschungsprojekts "Softaware" auf einem so genannten "Hackathon" in Berlin der Fachöffentlichkeit vorgestellt. Quelle: https://www.datacenter-insider.de/