cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Assessment of performance and costs of CO2 based Next Level Geothermal Power (NLGP) systems
Creators: name: Glos, Stefan
name: Hansper, Jil
name: Grotkamp, Stefanie
name: Wechsung, Michael
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. 49
title: Hybridization of a small modular reactor with a solar power plant using a supercritical carbon dioxide Brayton cycle
Creators: name: Tauveron, Nicolas
name: Pham, Quynh Trang
name: Alpy, Nicolas
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. 59
title: Development and testing of dry gas seals for turbomachinery in multiphase CO2 applications
Creators: name: Laxander, Armin
name: Fesl, Andreas
name: Hellmig, Benjamin
Publisher: name: DuEPublico: Duisburg-Essen Publications online, University of Duisburg-Essen, Germany
Year: 2019
Subjects: subject: 62
subject: 620

description: Shaft seals have a substantial impact on turbomachinery performance. Due to minimized friction and low leakage rates, mechanical dry gas seals outpace other shaft sealing technologies in terms of efficiency when it comes to sealing gases at elevated pressures. Therefore, dry gas seals are standard equipment for most centrifugal compressors nowadays. Even in some pump applications, they have shown significant advantages for sealing liquid media. Dry gas seals are an important tool to optimize supercritical carbon dioxide (sCO2) turbomachinery and therefore sCO2 power cycles to the desired levels of efficiency. 
The special characteristics of CO2 are challenging for the safe operation of dry gas seals in CO2 applications. E.g., we must avoid icing of CO2, related to the Joule-Thomson effect when expanding CO2 through the sealing gap, must be avoided. In addition, transitions between supercritical and liquid phase need to be carefully addressed. 
EagleBurgmann is a manufacturer of dry gas seals and has constructed a CO2 test loop for operating dry gas seals in a CO2 environment, covering all non-solid phase conditions, i.e. gaseous, supercritical, liquid and liquid-gas. Moreover, dry gas seal designs, especially dedicated to operation in sCO2 pumps and compressors have been developed. 
The paper shall give insight into the seal and test loop design, the test campaign and results.
description: Conference Proceedings of the European sCO2 Conference3rd European Conference on Supercritical CO2 (sCO2) Power Systems 2019: 19th-20th September 2019, p. 211
Quasi periodic oscillations from unstable accretion in CTTSs: an observer's perspective
Creators: name: Armeni, Antonio
Publisher: name: Zenodo
Year: 2025

description: Three-dimensional (3D) magnetohydrodynamic (MHD) simulations have shown that Classical T Tauri Stars (CTTSs) may accrete in either a stable or an unstable regime relative to the Rayleigh-Taylor instability. The transition between these regimes depends on the ratio between the truncation radius and the corotation radius. In the stable regime, accretion produces a polar hot spot which rotates with the stellar rotation period. In the unstable regime, accretion produces hot spots which rotate with the Keplerian rotation period at the truncation radius. Therefore, unstable accretion sometimes produces quasi-periodic oscillations (QPOs) at periods shorter than the stellar rotation period in the light curves. Recent works have shown how a third scenario might exist. When the truncation radius is very close to the star, unstable accretion becomes ordered, proceeding in one or two tongues of matter. This regime is called Magnetic Boundary Layer (MBL) regime. In this talk I will analyze the photometric behavior of three targets, namely HM Lup, RU Lup and TW Hya, which show signatures of unstable accretion in the light curves obtained with the Transiting Exoplanet Survey Satellite (TESS). For HM Lup, I will discuss how a decrease in the detected period between two different TESS light curves is accompanied by the appearance of ordered QPOs, in agreement with what is observed in the simulations. The spectroscopic data show that this  variability is driven by an increase in the accretion rate. For RU Lup, I will show that quasi-periodic oscillations in the TESS light curve are at a period shorter than the stellar rotation period,  and how the variability in the detected period is related to the accretion rate variability. In this case, the knowledge of the stellar mass and period allows a direct comparison to the MHD simulations. The ratio of the truncation radius to the corotation radius suggests that RU Lup is accreting through a MBL, with a magnetosphere as small as 1.8 stellar radii. For TW Hya, I will discuss preliminary results on the analysis of the TESS light curves, which also show signatures of unstable accretion.
Synthesis of New Carbon Fibre-based Electrode Materials for Structural Energy Storage Composites
Creators: name: Subhani, Karamat
Publisher: name: Swinburne
Year: 2024

description: Electric vehicles are replacing conventional cars due to zero carbon emissions. So, it helped to make the environment greener. About 1700 Australians die yearly from air pollution, so the Australian government plans to replace 90 % of vehicles with electric vehicles. Initially manufactured electric vehicles have separate energy storage devices that increase the car's weight. This research focused on fabricating carbon fibre-based electrodes and energy storage devices that can also act as car body parts that need very high mechanical properties and energy storage combined. Using an energy storage composite reduced the structure's weight and energy consumption.
title: Dynamic modeling and transient analysis of a molten salt heated recompression supercritical CO2 Brayton cycle
Creators: name: Zhou, Pan
name: Zhang, Jinyi
name: Le Moullec, Yann
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. 77
Rural use of health service and telemedicine during COVID-19 : The role of access and eHealth literacy
Creators: name: Rush, Kathy L.
name: Seaton, Cherisse L.
name: Li, Eric Ping Hung, 1978-
name: Oelke, Nelly
name: Pesut, Barbara
Publisher: name: SAGE Publications
Year: 2021

description: The COVID-19 pandemic has driven a greater reliance on telemedicine, yet rural access, use, and satisfaction with telemedicine and the role of eHealth literacy are unknown. Using a cross-sectional design, 279 (70.6% female) western rural Canadians completed an online survey. The majority of participants reported access to telemedicine, but nearly 1/5 lacked access to online or virtual mental health services. The majority of participants had used health care services following the declared COVID-19 pandemic in North America, and just under half had used telemedicine. Telemedicine satisfaction scores were higher among participants who had used video (M=4.18) compared to those who used phone alone (M=3.79) (p=0.031). Telemedicine satisfaction and eHealth literacy were correlated (r=0.26, p=0.005). Participants did not want telemedicine to replace in-person consultations. Telemedicine practice requires that rural residents have the resources, ability and willingness to engage with remote care.
title: Heat transfer characteristics of sCO2 and dynamic simulation model of sCO2 loop
Creators: name: Xiao, Gang
name: Xing, Kaixiang
name: Zhang, Jinyi
name: Le Moullec, Yann
name: Zhou, Pan
name: Yang, Tianfeng
name: Ni, Mingjiang
name: Cen, Kefa
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. 245
Disambiguating Numeral Sequences to Decipher Ancient Accounting Corpora
Creators: name: Born, Logan
name: Monroe, M. Willis
name: Kelley, Kathryn
name: Sarkar, Anoop
Publisher: name: arXiv
Year: 2025
Subjects: subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences

description: A numeration system encodes abstract numeric quantities as concrete strings of written characters. The numeration systems used by modern scripts tend to be precise and unambiguous, but this was not so for the ancient and partially-deciphered proto-Elamite (PE) script, where written numerals can have up to four distinct readings depending on the system that is used to read them. We consider the task of disambiguating between these readings in order to determine the values of the numeric quantities recorded in this corpus. We algorithmically extract a list of possible readings for each PE numeral notation, and contribute two disambiguation techniques based on structural properties of the original documents and classifiers learned with the bootstrapping algorithm. We also contribute a test set for evaluating disambiguation techniques, as well as a novel approach to cautious rule selection for bootstrapped classifiers. Our analysis confirms existing intuitions about this script and reveals previously-unknown correlations between tablet content and numeral magnitude. This work is crucial to understanding and deciphering PE, as the corpus is heavily accounting-focused and contains many more numeric tokens than tokens of text.
description: Englund 1996 incorrectly reported the relative values of signs in the decimal system. An earlier version of this paper used those values. This update fixes those mistakes and retrains our models using the corrected readings. Our analysis and discussion remain similar to the original, but the performance of the baseline model is now stronger
title: Experimental investigation of heat transfer and pressure drop in tubes to cool CO2 near the critical point
Creators: name: Wahl, Andreas
name: Mertz, Rainer
name: Laurien, Eckart
name: Starflinger, Jörg
Publisher: name: DuEPublico: Duisburg-Essen Publications online, University of Duisburg-Essen, Germany
Year: 2019
Subjects: subject: 62
subject: 620

description: In the frame of EU-project sCO2-flex the design of a 25 MWe supercritical CO2 (sCO2) Brayton cycle will be developed. The system will be optimized to meet flexibility requirements, while reducing environmental impact and focusing on cost efficiency. 
In the context of a sCO2 Brayton cycle, the gas cooler is a key component to achieve a high overall efficiency. Close to the critical point, due to varying properties, heat transfer and pressure drop of carbon dioxide (CO2) are difficult to predict. By performing experiments with the “SCARLETT” facility of the University of Stuttgart, expertise will be gained using CO2 as working fluid in the pseudocritical region. The results of the fundamental experiments will be used for validation and improvement of correlations to develop heat exchangers working with high efficiency. 
The heat transfer and pressure drop of carbon dioxide near the critical point cooled in a 2 mm diameter was investigated. The outer wall surface temperature is determined by soldering calibrated T-type thermocouples into the copper tube wall. Thermocouples are evenly distributed along the 1.2 m cooled length. The effects of the CO2 mass flux of 400-1400 kg/m²s, inlet pressures of 7.7-8.5 MPa, bulk fluid temperatures of 10-85 °C and the flow orientation (upward, downward and horizontal) on the heat transfer and pressure drop were examined.
description: Conference Proceedings of the European sCO2 Conference3rd European Conference on Supercritical CO2 (sCO2) Power Systems 2019: 19th-20th September 2019, p. 255
Professional Courage: What Does It Mean for Practitioner Psychologists?
Creators: name: Ashton, R.
Publisher: name: School of Psychology, University of East London
Year: 2017

description: Are you a brave psychologist? Should you aim to be? What does courage even mean for psychologists? In this article, the concept of professional courage is explored with reference to literature from the fields of philosophy, sociology, management science and psychology. The definition of courage as intentional action towards a worthy goal despite risks to the actor (Rate, 2010) is adopted and applied to professional courage in the course of working as a psychologist. A holistic process model of professional courage is developed and presented as a flow chart which can be used in supervision to help psychologists consider courage in their own practice. Importantly, professionals, including psychologists, may hold multiple worthy goals in mind, and one way of resolving situations calling for courage may be to reappraise the dominant goal and work towards one with fewer risks, therefore reducing the need for courage in the first place.
title: Gedenkfeier anlässlich der Bestattung von Anna Wettstein- Frey
title: Anna Wettstein-Frey, 1880-1965
titleType: AlternativeTitle
title: Montag, den 13. Dezember 1965 in der Friedhofkapelle Sihlfeld A in Zürich
titleType: Subtitle
Creators: name: Altorfer, Werner
Publisher: name: Zentralbibliothek Zürich
Year: 1965
Subjects: subject: 920 Biografien, Genealogie, Insignien
subject: Nachruf
subject: Oetwil an der Limmat
subject: Kloten

description: Titel auf dem Umschlag: Anna Wettstein-Frey, 1880-1965
title: Large Eddy Simulation of sCO2 flow with a discontinuous Galerkin method
Creators: name: Hennink, Aldo
name: Lathouwers, Danny
name: Rohde, Martin
name: Kloosterman, Jan Leen
Publisher: name: DuEPublico: Duisburg-Essen Publications online, University of Duisburg-Essen, Germany
Year: 2019
Subjects: subject: 62
subject: 620

description: We present large eddy simulations (LES) of heat transfer in sCO2 at 8 MPa in a plane channel geometry with various temperature ranges. This presents a numerical challenge, as the density can vary by more than a factor 2. We use a pressure-based solver with a high-order discontinuous Galerkin discretization. The large eddy simulation is based on the Wall-averaged Local Eddy viscosity (WALE) model and a constant turbulent Prandtl number. We resolve the flow near the wall. Though our geometry allows for a structured grid, our numerical scheme is highly flexible with respect to unstructured meshes. We validate our LES with an isothermal flow, and with a simulation in a temperature range that is far from the pseudocritical line. The results for non-isothermal flow show that the LES can accurately predict the average velocity and temperature profiles, despite reducing the number of degrees of freedom by several orders of magnitude compared to the reference direct numerical simulation. This paper is a precursor to future work, in which we will present more extensive validation of the non-isothermal test case. Our results are a first step toward using a pressure-based discontinuous Galerkin solver for sCO2 flows.
description: Conference Proceedings of the European sCO2 Conference3rd European Conference on Supercritical CO2 (sCO2) Power Systems 2019: 19th-20th September 2019, p. 265
title:   THE EFFECTS OF MAND-MODEL WITHIN SHARED READING ACTIVITY ON NAMING EMOTIONS
Creators: name: Owens, Paige
Publisher: name: University of Kentucky Libraries
Year: 2022
Subjects: subject: FOS: Educational sciences
valueUri: http://www.oecd.org/science/inno/38235147.pdf

description: There is a need for social communication skills to be explicitly taught to people with intellectual disabilities and complex communication needs. The use of naturalistic language interventions is an evidenced based practice shown to increase social communication skills in learners with disabilities. In addition, these interventions have proven successful when embedded into a storybook reading format. There is limited evidence when using both strategies to teach the skill of naming emotions. The purpose of this study was to determine the effectiveness of a mand-modeling procedure, during storybook reading, to teach middle schoolers with moderate and severe disabilities to name emotions and to name a self-care strategy when experiencing emotions. The results indicated the intervention was effective in teaching the skill of naming emotions.
description: © 2022 Paige Nicole Owens
Updates on EU Policy for Gender Equality in Research and Innovation
Creators: name: Moungou, Athanasia
Publisher: name: Zenodo
Year: 2022
Subjects: gender equality
superah2020
research

description: Presentation held by Athanasia Moungou (Gender Sector Unit D4-Democracy & European Values DG Research & Innovation) during the SUPERA Final Conference, organised by SUPERA on 25 March 2022.
Multi-Period Modelling for Multi-Entities Energy Planning in Malaysia using Pinch Analysis
Creators: name: Kong, Karen Gah Hie
Publisher: name: Swinburne
Year: 2024

description: The shortage of non-renewable power supplies and critical environmental issues are the main driving forces that urged many countries and non-profit organisations fully committed to seeking for more sustainable energy sources and energy planning. The research aims to develop time-slice models that can be integrated into an energy integration model that promises higher energy efficiency and bills savings simultaneously. The outcomes of the research are believed to provide a handy lens for the prosumers and power manufacturer a handy lens in the process of energy transition.
title: Shouhang-EDF 10MWe supercritical CO2 cycle + CSP demonstration project
Creators: name: Le Moullec, Yann
name: Qi, Zhipeng
name: Zhang, Jinyi
name: Zhou, Pan
name: Yang, Zijiang
name: Wang, Xihua
name: Chen, Wenlong
name: Wang, Shuai
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. 138
Reflections on the Role of the Educational Psychologist Within a Multi-Academy Trust
Creators: name: Rumble, A.
name: Thomas, G.
Publisher: name: School of Psychology, University of East London
Year: 2017

description: This study details the reflections of three EPs working within a MAT (BFET) regarding their role and day-to-day practice. Reflections were ascertained during a focus group which was audio recorded, transcribed and thematically analysed. Reflection themes indicated that the EPs’ role within BFET closely mirrors the role of the EP outlined in existing literature in terms of functions and levels of working across the school age range. The EPs reflections indicate that there are a range of facilitating factors that enable them to provide a bespoke model of service delivery to schools; the EPs also undertake joint working with a SALT also employed by BFET and share knowledge and expertise both across and beyond BFET. Reflections are discussed in relation to existing literature regarding the role of the EP and the current socio-political context in which EPs work.
title: Gedenkfeier anlässlich der Bestattung von Theodor Wettstein-Frey
title: Theodor Wettstein-Frey, 1883-1950
titleType: AlternativeTitle
title: Dienstag, den 7. März 1950, im Krematorium in Zürich
titleType: Subtitle
Creators: name: Huber, Max
name: Vassalli, Teodoro
name: Brembilla Capolago, Alessandro
name: Ferrari, Francesca
name: Zehnder, Joh
Publisher: name: Steno
Year: 1950
Subjects: subject: 920 Biografien, Genealogie, Insignien
subject: Nachruf
subject: Zürich
subject: Seebach (Zürich)
subject: Riva San Vitale
subject: Unternehmer

description: Titel auf dem Umschlag: Theodor Wettstein-Frey, 1883-1950
description: Enthält: Abdankungsansprache von Pfarrer Max Huber, Weiningen ; Discorso del sig. avv. Teodoro Vassalli, sindaco di Riva San Vitale ; discorso del sig. direttore Alessandro Brembilla Capolago ; discorso della signorina Francesca Ferrari, maestra stabilimento, Riva San Vitale ; Ansprache von Herrn Dr. Joh. Zehnder, Sekundarlehrer, Unterengstringen
A TEI plugin for the jEdit text editor
Creators: name: Tuohy, Conal
name: Burghart, Marjorie
Publisher: name: Zenodo
Year: 2021
Subjects: jEdit
TEI
XML
text editor

description: The aim of our project was to offer a free, TEI-aware and TEI-friendly text editor, as a basic but viable alternative to commercial software for students learning to encode in TEI, and also for scholars with simple needs and low financial resources.
title: Machine learning based design of a supercritical CO2 concentrating solar power plant
Creators: name: Nabil, Tahar
name: Le Moullec, Yann
name: Le Coz, Adrien
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. 148
Literacy Interventions Promoting Adolescent Reading Engagement and Motivation: A Systematic Literature Review
Creators: name: Cockroft, C.
name: Atkinson, C.
Publisher: name: School of Psychology, University of East London
Year: 2017

description: It is important to consider instructional and affective needs of adolescent readers as both correlate with proficiency. Given the dearth of research into how affective factors within interventions promote reading development, the authors undertook a systematic literature review of adolescent literacy interventions, which measured outcomes relating to motivation and/or engagement. Six studies met criteria, the majority of which were of high quality. Five aimed to improve both performance and motivation and four were within universal provision. Findings suggest that including motivational components within technical reading intervention promotes reading motivation, although it is not clear whether this is mediated by improved reading proficiency. Interventions were generally cognisant of Ho and Guthrie’s (2013) affirming motivations for reading, although the dimension of peer value–devalue was overlooked. Future research could consider the socio-cultural context for adolescent reading; and explore further the impact of adolescent reading interventions that target engagement and motivational factors.
title: Development of a partial-admission axial turbine for a tens-kWe under supercritical CO2 condition
Creators: name: Cho, Jongjae
name: Shin, Hyungki
name: Cho, Junhyun
name: Choi, Bongsu
name: Baik, Young-Jin
name: Lee, Beomjoon
name: Roh, Chulwoo
name: Ra, Ho-Sang
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. 158
Fundamental Interaction Bridging Elements, in Supplement to the Standard Model
Creators: name: Tsikoudas, Christos
name: Karacostas, Theodore
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 510799
subject: Particle and high energy physics not elsewhere classified

description: An interdisciplinary-field research brings new elements in bridging the gravitational interaction with the Standard Model, by focusing on 3 factors. The involvement of inductive and capacitive-like phase shifts in the gravitational interaction, the exploration of swapping between parameters of time and space, and the provision of a way to handle imaginary terms. The existence of phase shifts in the gravitational interaction is documented via re-interpretation of older quantitative predictions, and is specifically linked to the Higgs field mechanism. Same as in electronics, a phase shift splits energy into real and imaginary coordinates. This allows to quantitatively treat inertia as an inductive-like potential, alongside the swapping of parameters of time and space. That also allows to treat the Bernoulli pressure in quantitative analogy to a magnetic potential, as well as barrier penetration in quantitative symmetry to the crossing of displacement-current through a capacitor. The findings shed light on how fields & forces, including reaction forces function, while the role of imaginary numbers is analyzed. Interaction of fields with quantum particles is discussed to involve a Fourier-series effect that results in energy quantization. The role of phase shifts becomes essential in bridging between wave nature and effects of relativity, and the Weinberg angle is explained to have the role of an inductive-like shift. The precise value of this angle is proposed to link to elementary particles’ properties like spin, or the value of quarks’ charge. Symmetries introduced allow to address the abundance of matter over antimatter in certain analogy to theory from electronics, to address galaxy rotation curves through an interaction involving negative energy, and more. The new concepts open up room for advancements in energy exploitation over interdisciplinary areas.
title: Development and application of INCONEL® alloy 740H in uSCO2 power systems
Creators: name: McCoy, Stephen A.
name: Baker, Brian A.
name: Gollihue, Ronald D.
name: de Barbadillo, John J.
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. 166
title: Accurate and predictive mixture models applied to mixtures with CO2
Creators: name: Jäger, Andreas
name: Mickoleit, Erik
name: Breitkopf, Cornelia
Publisher: name: DuEPublico: Duisburg-Essen Publications online, University of Duisburg-Essen, Germany
Year: 2019
Subjects: subject: 62
subject: 620

description: Supercritical CO2 as a working fluid offers distinct advantages for power cycles, such as a comparably low critical temperature and pressure. However, the favorable properties of supercritical CO2 could potentially be enhanced by blending CO2 with suitable additives. In order to find promising additives for CO2, a theoretical screening seems to be most feasible, as extensive experimental studies would be very time-consuming. For this purpose, a mixture model is needed that on the one hand yields good predictive results and on the other hand should be as accurate as possible. Therefore, in this work the performance of the multi-fluid mixture model combined with UNIFAC and with different versions of COSMO-SAC is evaluated for mixtures containing CO2. The results are compared to results calculated with accurate multi-fluid mixture models. It is demonstrated that the predictive results for phase equilibria as well as for homogeneous densities of the multi-fluid mixture model combined with UNIFAC and COSMO-SAC are superior to the results of the multi-fluid mixture model with standard mixing rules. However, it can also be seen that the parameters of UNIFAC and COSMO-SAC should be readjusted in order to further improve the results.
description: Conference Proceedings of the European sCO2 Conference3rd European Conference on Supercritical CO2 (sCO2) Power Systems 2019: 19th-20th September 2019, p. 230
Comparison of a laser methane detector with the GreenFeed and two breath analysers for on-farm measurements of methane emissions from dairy cows
Creators: name: Sorg, Diana
name: Difford, G.F.
name: Mühlbach, S.
Publisher: name: My University
Year: 2018
Subjects: Methan

description: To measure methane (CH4) emissions from cattle on-farm, a number of methods have been developed. Combining measurements made with different methods in one data set could lead to an increased power of further analyses. Before combining the measurements, their agreement must be evaluated. We analysed data obtained with a handheld laser methane detector (LMD) and the GreenFeed system (GF), as well as data obtained with LMD and Fourier Transformed Infrared (FTIR) and Non-dispersive Infrared (NDIR) breath analysers (sniffers) installed in the feed bin of automatic milking systems. These devices record short-term breath CH4 concentrations from cows and make it possible to estimate daily CH4 production in g/d which is used for national CH4 emission inventories and genetic studies. The CH4 is released by cows during eructation and breathing events, resulting in peaks of CH4 concentrations during a measurement which represent the respiratory cycle. For LMD, the average CH4 concentration of all peaks during the measurement (P_MEAN in ppm * meter) was compared with the average daily CH4 production (g/d) measured by GF on 11 cows. The comparison showed a low concordance correlation coefficient (CCC; 0.02) and coefficient of individual agreement (CIA; 0.06) between the methods. The repeated measures correlation (rp) of LMD and GF, which can be seen as a proxy for the genetic correlation, was, however, relatively strong (0.66). Next, based on GF, a prediction equation for estimating CH4 in g/d (LMD_cal) using LMD measurements was developed. LMD_cal showed an improved agreement with GF (CCC = 0.22, CIA = 0.99, rp = 0.74). This prediction equation was used to compare repeated LMD measurements (LMD_val in g/d) with CH4 (g/d) measured with FTIR (n = 34 cows; Data Set A) or NDIR (n = 39 cows; Data Set B) sniffer. A low CCC (A: 0.28; B: 0.17), high CIA (A: 0.91; B: 0.87) and strong rp (A: 0.57; B: 0.60) indicated that there was some agreement and a minimal re-ranking of the cows between sniffer and LMD. Possible sources of disagreement were cow activity (LMD: standing idle; sniffer: eating and being milked) and the larger influence of wind speed on LMD measurement. The LMD measurement was less repeatable (0.14â€Ì0.27) than the other techniques studied (0.47â€Ì0.77). Nevertheless, GF, LMD and the sniffers ranked the cows similarly. The LMD, due to its portability and flexibility, could be used to study CH4 emissions on herd or group level, as a validation tool, or to strengthen estimates of genetic relationships between small-scale research populations. © 2018 Elsevier B.V.
title: Supercritical carbon dioxide/alternative fluids blends for efficiency upgrade of solar power plant
Creators: name: Binotti, Marco
name: Di Marcoberardino, Gioele
name: Iora, Paolo
name: Invernizzi, Costante Mario
name: Manzolini, Giampaolo
Publisher: name: DuEPublico: Duisburg-Essen Publications online, University of Duisburg-Essen, Germany
Year: 2019
Subjects: subject: 62
subject: 620

description: The future of Concentrated Solar Power technology relies on significant cost reduction to be competitive against both fossil fuel power stations and renewable technologies as photovoltaics and wind. Most of the research activity on CSP focuses on supercritical CO2 cycles to increase the solar plant efficiency together with a cost reduction. Recently, several research groups have started investigating the blending of CO2 with small amounts of additives to boost the thermodynamic cycle performance. The potentialities of N2O4 and TiCl4 were already demonstrated from theoretical point of view. The SCARABEUS project aims at developing and demonstrating CO2 blends in concentrating solar power plant with maximum temperatures of 700°C, power cycle efficiency above 50% and cost of electricity below 96 €/MWh. The innovative fluid and newly developed components will be validated at a relevant scale (300 kWth) for 300 h in a CSP-like operating environment.
description: Conference Proceedings of the European sCO2 Conference3rd European Conference on Supercritical CO2 (sCO2) Power Systems 2019: 19th-20th September 2019, p. 222
Social Information Processing: A Useful Framework for Educational Psychology
Creators: name: Cooke, Tim
Publisher: name: School of Psychology, University of East London
Year: 2017

description: The Social Information Processing (SIP) model (Crick & Dodge, 1994; Dodge, 1986; Lemerise & Arsenio, 2000) offers a detailed framework for understanding the way that a child makes sense of and acts in social situations. When applied in the context of a wider biopsychosocial conceptualisation (Dodge & Pettit, 2003), it offers a comprehensive model that is in accordance with current ways of thinking about human behaviour. This article reviews the history of the SIP model and considers the evidence for each step of the SIP model. In the light of these findings, the article considers possible reasons for the relative oversight of this model by the educational psychology profession. After presenting some reasons why it is still of contemporary relevance, this article sets out the ways that an SIP-informed approach offers a range of questions for assessment and intervention.
title: Modelling and optimisation of supercritical carbon dioxide turbomachinery
Creators: name: van der Westhuizen, Ruan
name: Van Der Spuy, Johan
name: Groenwold, Albert
name: Dobson, Robert
Publisher: name: DuEPublico: Duisburg-Essen Publications online, University of Duisburg-Essen, Germany
Year: 2019
Subjects: subject: 62
subject: 620

description: In this work models of a centrifugal compressor and radial inflow turbine are presented. The models serve as a way to perform the initial design of the turbomachines for application in small- to medium-scale power cycles. The models are based on the classical mean-line velocity triangle approach which is 
supplemented with loss coefficients. Restrictive assumptions are not placed on the fluid and therefore the models can be used with supercritical carbon dioxide 
as will be explored in this work. In order to gain insight into the relationship between the geometrical specifications, thermodynamic operating conditions and performance characteristics of the turbomachinery, mathematical optimisation is performed for specific objectives under given constraints. The benefit of this is that the inevitable trade-offs between the design variables can be studied a priori, 
before any physical prototypes are built. Results are presented as Pareto 
plots between pairs of design variables. The importance of choosing an appropriate objective function and upper and lower bounds on the variables
is discussed as well.
description: Conference Proceedings of the European sCO2 Conference3rd European Conference on Supercritical CO2 (sCO2) Power Systems 2019: 19th-20th September 2019, p. 190
title: Transient response of supercritical CO2 axial turbine for KAIST MMR
Creators: name: Son, In Woo
name: Heo, Jin Young
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: The Supercritical CO2 (S-CO2) Brayton power cycle has the advantages of relatively high efficiency at moderate heat source temperature compared to a steam Rankine cycle or a helium Brayton cycle and compact components size. In nuclear energy industry, Small Modular Reactors have potentials in many aspects, flexibility of construction, and applicability for the distributed power source and reduced construction cost. Therefore, KAIST research team developed an S-CO2 cooled Small Modular Reactor namely KAIST Micro Modular Reactor (MMR), using both advantages of S-CO2 cycle and SMR. Currently, radial turbine is being used for the output of 12MWe in MMR. The original KAIST-MMR was designed to utilize radial turbine but the 12MWe power output of MMR can adopt axial turbine as well. Therefore, this paper explores the potential of improving both steady state performance and transient response by switching from radial type to axial type turbine. The implications of the transient analysis results show the advantages of using the axial turbine over the radial turbine because the axial turbine operates at relatively higher efficiencies for wider off-design ranges.
description: Conference Proceedings of the European sCO2 Conference3rd European Conference on Supercritical CO2 (sCO2) Power Systems 2019: 19th-20th September 2019, p. 201
title: Part-load operation of coal fired sCO2 power plants
Creators: name: Dario, Alfani
name: Astolfi, Marco
name: Binotti, Marco
name: Macchi, Ennio
name: Silva, Paolo
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. 68
title: Effect of impurities on supercritical CO2 compatibility
Creators: name: Pint, Bruce A.
name: Unocic, Kinga
name: Keiser, James R.
Publisher: name: DuEPublico: Duisburg-Essen Publications online, University of Duisburg-Essen, Germany
Year: 2019
Subjects: subject: 62
subject: 620

description: Impurities may affect structural alloy compatibility in both indirect- and direct-fired supercritical CO2 (sCO2) cycles for high efficiency power generation with peak temperatures above 700°C. Using a new multi-pump gas control system, experiments with controlled impurity additions were compared to baseline results in research- or industrial-grade CO2 at 750°C/300 bar. Low level impurities, 50 ppm O2 and 50 ppm H2O, were not found to affect mass change or reaction products after 2,500 h exposures. However, in RG sCO2+1%O2+0.25%H2O, higher reaction rates were observed for both Ni- and Fe-based alloys, but especially Fe-based alloys were strongly affected by these high impurity levels. Analytical TEM was used to characterize the reaction products on alloy 625.
description: Conference Proceedings of the European sCO2 Conference3rd European Conference on Supercritical CO2 (sCO2) Power Systems 2019: 19th-20th September 2019, p. 238
Sleep issues: Can EPs do more?
Creators: name: Bryant, A.
Publisher: name: School of Psychology, University of East London
Year: 2017

description: Sleep problems can have a significant impact on young people’s wellbeing. This article will focus specifically on sleep difficulties for adolescents, an age group for which sleep issues can receive much less professional attention. Evidence will be considered for sleep hygiene interventions whereby sleep routines and environments are considered key for good quality sleep and duration. This evidence base will then be critiqued for its applicability to young people with additional social, emotional and mental health needs. The aim is to highlight the importance of sleep for young people and to encourage Educational Psychologists to consider the issues for their practice.
title: Highly efficient Plate-Fin Heat Exchanger (PFHE) technical development for s-CO2 power cycles
Creators: name: Tioual-Demange, Sarah
name: Bergin, Gaëtan
name: Mazet, Thierry
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. 172
title: A systematic comparison of supercritical CO2 Brayton cycle layouts for concentrated solar power with a focus on thermal energy storage utilization
Creators: name: Zhang, Jinyi
name: Le Moullec, Yann
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. 105
An integrated approach to address Diabetic Retinopathy in a rural district of Bangladesh
Creators: name: Sarwar, Mohammad
Publisher: name: Swinburne
Year: 2024

description: This thesis focuses on diabetic retinopathy (DR) screening programs in rural Bangladesh, assessing the awareness of DR among healthcare workers, teachers, community leaders, and people with diabetes. The study reveals a lack of knowledge about DR among these key groups, emphasizing the need for educational interventions to improve awareness and prevention through routine screening programs. The research also evaluates the accuracy of DR screening using retinal imaging by non-ophthalmologists, demonstrating that primary care physicians can achieve moderate accuracy with online training and exploring the potential of involving general physicians in grading retinal photos to overcome resource limitations in rural areas.
title: Development and power generating operation of the supercritical carbon dioxide power cycle experimental test loop in KIER
Creators: name: Cho, Junhyun
name: Shin, Hyungki
name: Cho, Jongjae
name: Choi, Bongsu
name: Roh, Chulwoo
name: Lee, Beomjoon
name: Lee, Gilbong
name: Ra, Ho-Sang
name: Baik, Young-Jin
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. 116
title: Operational experiences and design of the sCO2-HeRo loop
Creators: name: Hacks, Alexander Johannes
name: Freutel, Thomas
name: Strätz, Marcel
name: Vojacek, Ales
name: Hecker, Frieder
name: Starflinger, Jörg
name: Brillert, Dieter
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. 125
Pulmonary Rehabilitation in a Post-COVID-19 World : Telerehabilitation as a New Standard in Patients with COPD
Creators: name: Tsutsui, Mai
name: Gerayeli, Firoozeh
name: Sin, Don
Publisher: name: Dove Medical Press
Year: 2021

description: Pulmonary rehabilitation (PR) is effective in reducing symptoms and improving health status, and exercise tolerance of patients with chronic obstructive pulmonary disease (COPD). The coronavirus disease 19 (COVID-19) pandemic has greatly impacted PR programs and their delivery to patients. Owing to fears of viral transmission and resultant outbreaks of COVID-19, institution-based PR programs have been forced to significantly reduce enrolment or in some cases completely shut down during the pandemic. As a majority of COPD patients are elderly and have multiple co-morbidities including cardiovascular disease and diabetes, they are notably susceptible to severe complications of COVID-19. As such, patients have been advised to stay at home and avoid social contact to the maximum extent possible. This has increased patients’ vulnerability to physical deconditioning, depression, and social isolation. To address this major gap in care, some traditional hospital or clinic-centered PR programs have converted some or all of their learning contents to homebased telerehabilitation during the pandemic. There are, however, some significant barriers to this approach that have impeded its implementation in the community. These include variable access and use of technology (by patients), a lack of standardization of methods and tools for evaluation of the program, and inadequate training and resources for health professionals in optimally delivering telerehabilitation to patients. There is a pressing need for high-quality studies on these modalities of PR to enable the successful implementation of PR at home and via teleconferencing technologies. Here, we highlight the importance of telerehabilitation of patients with COPD in the post-COVID world and discuss various strategies for clinical implementation.
SHALLOW FOUNDATIONS IN SEDIMENTARY TERRAINS: GEOTECHNICAL INSIGHTS FROM FEDERAL POLYTECHNIC OF OIL AND GAS, BONNY ISLAND
Creators: name: Ikechukwu A., Oru
name: Chinaza T., Abam
Publisher: name: continental journal
Year: 2024
Subjects: Foundation, Geotechnical, Sedimentary, Sub-soil, Bonny

description: This study investigated the Geotechnical assessment of shallow foundation in sedimentary deposits. The samples were taken by drilling with the aid of percussion drilling rig to the maximum depth of 2m, and were further subjected to various laboratory analysis. According to the findings, the lithographic sequence consists of fine sand to dense sand. The soil has a moisture content of 17.5-18.8%, the particle size distribution analysis showed poorly graded sand. Values of the undrained cohesion is 0 kPa showing cohesionless nature of the soil and angle of internal friction are between 32º to 33º indicating good shear strength properties. Bearing capacity for the homogenous subgrade ranged from the top soil to 1 m depth below the top soil, 218 kN/m2 to 753 kN/m2, and to 2m depth below 1m it ranges from 427 kN/m2 to 1064 kN/m2, this suggested very adequate strength for load bearing structures. Based on the assessment, a shallow foundation with a depth of 1or 1.5 meter is recommended within the allowable bearing pressure stated above. A shallow foundation with a spread footing or mat foundation is suitable for this site, the spread footing can transfer the load to the required depth, while the mat foundation can distribute the load over a larger area, reducing the pressure on the soil.