Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 41 for “"Sco"”.
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Integrating fluidized bed heat exchangers and particle thermal energy storage with sCO₂ recompression Brayton cycles for concentrating solar power
… that implement supercritical carbon dioxide (sCO2) cycles at firing temperatures above 700°C. However, the design of effective particle-sCO2 HXs (HX) remains a challenge. Recent studies have explored how mild fluidization of gravity-fed particle flows can increase overall particle-sCO2 heat …
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Computational investigation of the thermal conductivities and phonon properties of strontium cobalt oxides
… electrochemically tuned strontium cobalt oxides (SCO) are significantly different among the perovskite SrCoO3 (P-SCO), the brownmillerite SrCoO2.5 (BM-SCO) and the hydrogenated HSrCoO2.5 (H-SCO)1. The underlying mechanism causing this large difference is still unclear. And phonon properties in SCO …
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Shanghai Cooperation Organization: paper tiger or regional powerhouse
… formed the Shanghai Cooperation Organization (SCO) in 2001. The inclusion of India, Pakistan, and Iran in 2005 renewed speculation over a new "Great Game" in Central Asia. While this notion is superficially attractive, this thesis delves deeper into what is driving Russian and Chinese interests …
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A model of sustainable campus operations for Malaysian public universities
… the relevant Sustainable Campus Operation (SCO) initiatives to be implemented at the Malaysian public universities, and also determining the critical factors of governance that influence the successful implementation of the SCO initiatives. The investigation involves a quantitative approach …
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A Comprehensive Numerical Investigation of Heat Transfer Dynamics in Supercritical Carbon Dioxide Cooling
<p>Supercritical carbon dioxide (sCO<sub>2</sub>) is an ideal heat transfer medium in energy and industrial applications due to its exceptional thermophysical properties near its critical point. However, experimental studies and numerical modeling of sCO<sub>2</sub> face significant challenges, …
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An Exploration of the Effect of Temperature on Different Alloys in a Supercritical Carbon Dioxide Environment
… developed in which supercritical carbon dioxide (SCO₂) is a prime coolant candidate. SCO₂ allows for higher efficiencies, reduced pumping power, lower plant temperature, and more compactness compared to the other gas coolants currently being examined. However, limited corrosion data currently …
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Authoritarianism revisited: a study among Afrikaans and English middle-class women
… and that Afrikaans-speakers would therefore score significantly higher than English-speakers on the RWA scale. Exploratory investigations compared a group of 97 white, Afrikaans-speaking, middle-class women in the age group 30-45, with a matched sample of 101 English-speaking women, on the …
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Evaluation of the Greenhouse Gas Emissions of Oil Sands Upgrading Technologies Using a Novel Life Cycle-based Model
… per megajoule of synthetic crude oil (g CO2e/MJ SCO) and range is 6.3–11.2 g CO2e/MJ SCO. HC’s baseline intensity is 10.8 g CO2e/MJ SCO (range: 8.6-14.3 g CO2e/MJ SCO) and HC/FC’s is 12.2 g CO2e/MJ SCO (range: 9.7-14.8 g CO2e/MJ SCO). The baseline, low and high scenario GHG intensities for HI-Q® …
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Dynamic environmental transmission electron microscopy of spin crossover materials
… here focuses on the study of spin crossover (SCO) materials via dynamic transmission electron microscopy (DTEM). SCO metal complexes commonly contain first-row d4-d7 transition metals in an octahedral ligand field, which splits the d-orbitals into tripledegenerate t2g and anti-bonding, …
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Dishonesty and social presence in retail
… scanning and payment at self-service checkouts (SCOs) has resulted in areas for concern. The reduction of employee involvement may reduce the social presence perceived at a SCO. Social presence is when a user experiences the perception that there is another intelligence or entity within their …
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Pacts and Pretenses, Competition and Cooperation: What Is the Shanghai Cooperation Organization and Why It Matters Now More Than Ever
… is the Shanghai Cooperation Organization (SCO), a self-defined intergovernmental mutual-security organization founded in 2001 that is comprised of China, Kazakhstan, Kyrgyzstan, Russia, Tajikistan, and Uzbekistan. However, after more than ten years, the SCO’s role in the international …
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Amphiphilic Spin Crossover Complexes
… supramolecular arrangement in the solid on the SCO behaviour. The used ligand system is based on Schiff base-like Jäger ligands that are suitable to realize iron(II) SCO compounds. The ligands were modified such that alkyl chains with different lengths were attached to the outer periphery. The …
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COOPERATION AND COMPETITION AS A FUNCTION OF ZYGOSITY IN 7 TO 9 YEAR OLD SINGAPORE TWINS
… payoff structures, Simultaneous Cooperation (SCO) and Reciprocal Altruism (RA), on a task chosen for use in this study (Marble-Pull Task). In the Marble-Pull task, rewards can be gained only by cooperating. Competition is not beneficial for either player. Unexpectedly, MZ twins were shown to …
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Interplay of Transition Metals and Noncovalent Interactions in C–H Activation Catalysis
… active site are well defined through spectroscopic methods, that is not the case with TMC catalysts. Thus, modeling TMC catalysts is accompanied by the twin challenges of identifying the ground spin state and determining the appropriate method to identify the ground state since properties …
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An upper limit on the abundance of small trans-Neptunian objects from X-ray occultations
… 201 highly significant dips in the count rate of Sco X-1 from a search of some 500 ks of archival RXTE PCA data, which could be caused by TNO occultations. I show that most of these dips are correlated with particle showers in the PCA, suggesting that the dips in count rate result from large …
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Theoretical Study of Bistable Systems
… with the theoretical study of spin-crossover (SCO) complexes, archetype of bistable molecules, with two accessible spin states that can be tuned by external stimuli such as temperature or light. Spin-crossover complexes are potential candidates for applications in information storage, …
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A biosynthetic approach to understanding the assembly of CuA centers
… native CuA centers, as evidenced by many spectroscopic and structural studies. The ease of purification, amenability to mutagenesis, and stability in solution of CuAAz has resulted in many important insights into the properties of native CuA centers, such as a direct demonstration of the greater …
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Multiband Observations of Recurrent Novae
… on a timescale of decades. Two systems, U Scorpii and RS Ophiuchi, are the main focus of this thesis having gone into outburst in 2010 and 2006 respectively. Optical and near-IR spectroscopy of U Sco obtained with facilities including the Liverpool Telescope, the Very Large Telescope, and …
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An investigation into the viability of UWB as lower-layer for Bluetooth
… (L2CAP) and Synchronous Connection-Oriented (SCO) implementations were hijacked and routed to a UWB “router and convergence” implementation for transmission over the UWB subsytem. Similarly lower level HCI events were spoofed to the L2CAP and SCO layers by the UWB convergence implementation …
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Accounting for Variability and Uncertainty in Life Cycle Assessments: Oil Sands Case Studies
… for projects producing synthetic crude oil (SCO) range from 89-137 kg CO2eq/bbl SCO and for the project producing dilbit are 51 kg CO2eq/bbl dilbit. Projects show significant temporal variability. No project reaches steady-state in terms of GHG intensity. Next, GHOST-SE is integrated with a …
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