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| 2. |
- Allsopp, Benjamin, et al.
(författare)
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Towards improved cover glasses for photovoltaic devices
- 2020
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Ingår i: Progress in Photovoltaics. - : John Wiley and Sons Ltd. - 1062-7995 .- 1099-159X. ; 28, s. 1187-1206
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Tidskriftsartikel (refereegranskat)abstract
- For the solar energy industry to increase its competitiveness, there is a global drive to lower the cost of solar-generated electricity. Photovoltaic (PV) module assembly is material-demanding, and the cover glass constitutes a significant proportion of the cost. Currently, 3-mm-thick glass is the predominant cover material for PV modules, accounting for 10%–25% of the total cost. Here, we review the state-of-the-art of cover glasses for PV modules and present our recent results for improvement of the glass. These improvements were demonstrated in terms of mechanical, chemical and optical properties by optimizing the glass composition, including addition of novel dopants, to produce cover glasses that can provide (i) enhanced UV protection of polymeric PV module components, potentially increasing module service lifetimes; (ii) re-emission of a proportion of the absorbed UV photon energy as visible photons capable of being absorbed by the solar cells, thereby increasing PV module efficiencies and (iii) successful laboratory-scale demonstration of proof of concept, with increases of 1%–6% in Isc and 1%–8% in Ipm. Improvements in both chemical and crack resistance of the cover glass were also achieved through modest chemical reformulation, highlighting what may be achievable within existing manufacturing technology constraints. © 2020 The Authors.
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| 3. |
- Axer, Philip, et al.
(författare)
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Building Timing Predictable Embedded Systems
- 2012
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Rapport (övrigt vetenskapligt/konstnärligt)abstract
- A large class of embedded systems is distinguished from general purpose computing systems by the need to satisfy strict requirements on timing, often under constraints on available resources. Predictable system design is concerned with the challenge of building systems for which timing requirements can be guaranteed a priori. Perhaps paradoxically, this problem has become more difficult by the introduction of performance-enhancing architectural elements, such as caches, pipelines, and multithreading, which introduce a large degree of nondeterminism and make guarantees harder to provide. The intention of this paper is to summarize current state-of-the-art in research concerning how to build predictable yet performant systems. We suggest precise definitions for the concept of “predictability”, and present predictability concerns at different abstractions levels in embedded software design. First, we consider timing predictability of processor instruction sets. Thereafter, We consider how programming languages can be equipped with predictable timing semantics, covering both a language-based approach based on the synchronous paradigm, as well as an environment that provides timing semantics for a mainstream programming language (in this case C). We present techniques for achieving timing predictability on multicores. Finally we discuss how to handle predictability at the level of networked embedded systems, where randomly occurring errors must be considered.
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| 5. |
- Demichev, Vadim, et al.
(författare)
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A time-resolved proteomic and prognostic map of COVID-19
- 2021
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Ingår i: Cell Systems. - : Elsevier BV. - 2405-4712 .- 2405-4720. ; 12:8, s. 780-794.e7
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Tidskriftsartikel (refereegranskat)abstract
- COVID-19 is highly variable in its clinical presentation, ranging from asymptomatic infection to severe organ damage and death. We characterized the time-dependent progression of the disease in 139 COVID-19 inpatients by measuring 86 accredited diagnostic parameters, such as blood cell counts and enzyme activities, as well as untargeted plasma proteomes at 687 sampling points. We report an initial spike in a systemic inflammatory response, which is gradually alleviated and followed by a protein signature indicative of tissue repair, metabolic reconstitution, and immunomodulation. We identify prognostic marker signatures for devising risk-adapted treatment strategies and use machine learning to classify therapeutic needs. We show that the machine learning models based on the proteome are transferable to an independent cohort. Our study presents a map linking routinely used clinical diagnostic parameters to plasma proteomes and their dynamics in an infectious disease.
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| 6. |
- Finnsgård, Christian, 1974, et al.
(författare)
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NÄRSJÖFART I ÖRESUND, KATTEGATT OCH SKAGERACK, HA1 RAPPORT
- 2014
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Rapport (övrigt vetenskapligt/konstnärligt)abstract
- Delrapporter inom HA1 i NÖKS projektet som inkluderas i denna rapport:NÖKS transportteori, godsflöden och rambetingelser för trafiksslagsskifte från land till sjöNÖKS fartygstyper resp ny teknologiInvesteringsplaner och utvecklingsbehov för Containershipping inom NÖKS området
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| 7. |
- Grund Bäck, Lina, et al.
(författare)
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Improved mechanical properties and chemical durability by modifying the float glass composition and thermo-chemical strengthening for photovoltaic cover glass
- 2017
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Konferensbidrag (refereegranskat)abstract
- Solar energy is promising renewable energy where glass is an important material and have a significant impact on the efficiency of the photovoltaic (PV) module. The cover glass of PV-modules constitutes a large part of the total weight of the unit. In a recent Solar-ERA.NET project, LIMES (www.limes.nu), have we been aiming towards developing 1 mm thin glass for PV modules by improving the indentation mechanical properties and by investigating a novel thermo-chemical strengthening method.Starting from traditional soda-lime-silicate float composition different components was studied in a DoE fashion. The mechanical properties were studied using nano- and microindentation, the chemical durability by P98 analysis and weathering experiments. The findings resulted in a suggested composition for improving the properties of float glass by adding small amounts of zinc and titanium oxide as well as increasing the amount of aluminum and magnesium oxide. The components found to improve the chemical resistance were alumina, zirconia, zinc, lanthanum and titanium oxide. The surface hardness, crack- and scratch resistance were improved when magnesia was replaced with zinc oxide. When magnesia was replaced with titania, the hardness was increased.Some results from the thermo-chemical strengthening experiments will be presented. Heating and quenching in a reactive gas atmosphere using aluminum precursors have resulted in chemically modified surface in addition to the thermal strengthening.
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| 9. |
- Grund, Peter
(författare)
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Albertus Magnus and the Queen of the Elves: A 15th-Century English Verse Dialogue on Alchemy
- 2004
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Ingår i: Anglia: Zeitschrift für englische Philologie. ; 122:4, s. 640-662
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Tidskriftsartikel (refereegranskat)abstract
- This article presents an edition of a Middle English verse tract on alchemy based on Trinity College, Cambridge, MS R. 14. 44 (15th century). The tract, entitled ”Semita Recta Albertus peribet testimonium”, is structured as a dialogue between Albertus Magnus, the famous medieval scholar (c. 1200–1280), and Elchyell, the Queen of the Elves. In the dialogue, Elchyell instructs Albertus on how to produce an alchemical elixir that will produce silver or gold. Besides presenting the edition, this article also places the dialogue in the tradition of alchemical and scientific writing in Middle English. I argue that, as in the case of many other alchemical texts of the period, the author of this tract uses Albertus and the setting of the poem to bestow dignity and credibility on the text. Furthermore, it is shown that the tract exploits several presentation strategies common in other alchemical and scientific texts, such as the verse medium, the dialogue format, the recipe structure and coded language. However, I also demonstrate that this text appears to be unique in the way it utilizes and combines these presentation strategies.
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| 10. |
- Grund, Peter, 1975-, et al.
(författare)
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Conjuncts in Nineteenth-century English : Diachronic Development and Genre Diversity
- 2014
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Ingår i: English Language and Linguistics. - 1360-6743 .- 1469-4379. ; 18:1, s. 157-181
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Tidskriftsartikel (refereegranskat)abstract
- This article explores the use of connective adverbials or conjuncts (e.g. therefore, on the other hand, firstly) in nineteenth-century English. Drawing on A Corpus of Nineteenth-Century English (CONCE), the study focuses on charting change over time and variation among different genres, and considers the distribution of various semantic types (e.g. contrastive, resultive) as well as individual conjuncts and author styles. We show that nineteenth-century English displays considerable genre differentiation in the use of conjuncts, both in terms of frequency and semantic types of conjuncts employed. Within these larger trends, patterns are also evident for individual conjuncts (e.g. now, therefore, so) and individual authors (e.g. in Letters). Science writing, in particular, reveals a drastic increase in conjuncts (in nearly all semantic types), which sets it apart from other genres. This suggests that the conjunct-heavy style of academic writing that has been attested in studies of Present-Day English was established in the nineteenth century. On a more general level, this result underlines the importance of considering formal genres when charting language change, as they may be in the forefront of the formation of new linguistic patterns that are unique to written texts. The article also contributes to our growing understanding of Late Modern English syntax.
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