| 1. |
- Aad, G, et al.
(author)
-
Measurements of fiducial cross-sections for [Formula: see text] production with one or two additional b-jets in pp collisions at [Formula: see text]=8 TeV using the ATLAS detector.
- 2016
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In: European Physical Journal C. Particles and Fields. - : Springer Science and Business Media LLC. - 1434-6044. ; 76
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Journal article (peer-reviewed)abstract
- Fiducial cross-sections for [Formula: see text] production with one or two additional b-jets are reported, using an integrated luminosity of 20.3 fb[Formula: see text] of proton-proton collisions at a centre-of-mass energy of 8 TeV at the Large Hadron Collider, collected with the ATLAS detector. The cross-section times branching ratio for [Formula: see text] events with at least one additional b-jet is measured to be 950 [Formula: see text] 70 (stat.) [Formula: see text] (syst.) fb in the lepton-plus-jets channel and 50 [Formula: see text] 10 (stat.) [Formula: see text] (syst.) fb in the [Formula: see text] channel. The cross-section times branching ratio for events with at least two additional b-jets is measured to be 19.3 [Formula: see text] 3.5 (stat.) [Formula: see text] 5.7 (syst.) fb in the dilepton channel ([Formula: see text], [Formula: see text], and ee) using a method based on tight selection criteria, and 13.5 [Formula: see text] 3.3 (stat.) [Formula: see text] 3.6 (syst.) fb using a looser selection that allows the background normalisation to be extracted from data. The latter method also measures a value of 1.30 [Formula: see text] 0.33 (stat.) [Formula: see text] 0.28 (syst.)% for the ratio of [Formula: see text] production with two additional b-jets to [Formula: see text] production with any two additional jets. All measurements are in good agreement with recent theory predictions.
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| 2. |
- Aad, G, et al.
(author)
-
Searches for scalar leptoquarks in pp collisions at [Formula: see text] = 8 TeV with the ATLAS detector.
- 2016
-
In: European Physical Journal C. Particles and Fields. - : Springer Science and Business Media LLC. - 1434-6044. ; 76
-
Journal article (peer-reviewed)abstract
- Searches for pair-produced scalar leptoquarks are performed using 20 fb[Formula: see text] of proton-proton collision data provided by the LHC and recorded by the ATLAS detector at [Formula: see text] TeV. Events with two electrons (muons) and two or more jets in the final state are used to search for first (second)-generation leptoquarks. The results from two previously published ATLAS analyses are interpreted in terms of third-generation leptoquarks decaying to [Formula: see text] and [Formula: see text] final states. No statistically significant excess above the Standard Model expectation is observed in any channel and scalar leptoquarks are excluded at 95 % CL with masses up to [Formula: see text] 1050 GeV for first-generation leptoquarks, [Formula: see text] 1000 GeV for second-generation leptoquarks, [Formula: see text] 625 GeV for third-generation leptoquarks in the [Formula: see text] channel, and 200 [Formula: see text] 640 GeV in the [Formula: see text] channel.
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| 3. |
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| 4. |
- Aad, G., et al.
(author)
-
- 2016
-
In: Journal of High Energy Physics. - : Springer. - 1029-8479 .- 1126-6708. ; :1
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Journal article (peer-reviewed)
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| 5. |
- Aad, G., et al.
(author)
-
- 2015
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In: Physical Review D. Particles and fields. - : American Physical Society. - 0556-2821 .- 1089-4918. ; 92:9
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Journal article (peer-reviewed)
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| 6. |
- Aad, G., et al.
(author)
-
- 2015
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In: Physical Review D. Particles and fields. - : American Physics Society. - 0556-2821 .- 1089-4918. ; 92:11
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Journal article (peer-reviewed)
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| 7. |
- Aad, G., et al.
(author)
-
- 2015
-
In: Journal of High Energy Physics. - : Springer. - 1029-8479 .- 1126-6708. ; :12
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Journal article (peer-reviewed)
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| 8. |
- Aad, G., et al.
(author)
-
- 2016
-
In: Physical Review D. Particles and fields. - : American Physical Society. - 0556-2821 .- 1089-4918. ; 93:1
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Journal article (peer-reviewed)
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| 9. |
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| 10. |
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| 11. |
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| 12. |
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| 13. |
- Aad, G., et al.
(author)
-
- 2015
-
In: Journal of High Energy Physics. - : Springer. - 1029-8479 .- 1126-6708. ; :11
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Journal article (peer-reviewed)
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| 14. |
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| 15. |
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| 16. |
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| 17. |
- Aad, G., et al.
(author)
-
- 2016
-
In: The European Physical Journal C. - : Springer Science and Business Media LLC. - 1434-6052. ; 76:1
-
Journal article (peer-reviewed)
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| 18. |
- Aad, G., et al.
(author)
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- 2015
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Journal article (peer-reviewed)
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| 19. |
- Aad, G., et al.
(author)
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- 2015
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Journal article (peer-reviewed)
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| 20. |
- Pihl, E., et al.
(author)
-
Ten new insights in climate science 2020- A horizon scan
- 2020
-
In: Global Sustainability. - : Cambridge University Press. - 2059-4798.
-
Journal article (peer-reviewed)abstract
- Non-technical summary We summarize some of the past year's most important findings within climate change-related research. New research has improved our understanding of Earth's sensitivity to carbon dioxide, finds that permafrost thaw could release more carbon emissions than expected and that the uptake of carbon in tropical ecosystems is weakening. Adverse impacts on human society include increasing water shortages and impacts on mental health. Options for solutions emerge from rethinking economic models, rights-based litigation, strengthened governance systems and a new social contract. The disruption caused by COVID-19 could be seized as an opportunity for positive change, directing economic stimulus towards sustainable investments. Technical summary A synthesis is made of ten fields within climate science where there have been significant advances since mid-2019, through an expert elicitation process with broad disciplinary scope. Findings include: (1) a better understanding of equilibrium climate sensitivity; (2) abrupt thaw as an accelerator of carbon release from permafrost; (3) changes to global and regional land carbon sinks; (4) impacts of climate change on water crises, including equity perspectives; (5) adverse effects on mental health from climate change; (6) immediate effects on climate of the COVID-19 pandemic and requirements for recovery packages to deliver on the Paris Agreement; (7) suggested long-term changes to governance and a social contract to address climate change, learning from the current pandemic, (8) updated positive cost-benefit ratio and new perspectives on the potential for green growth in the short- A nd long-term perspective; (9) urban electrification as a strategy to move towards low-carbon energy systems and (10) rights-based litigation as an increasingly important method to address climate change, with recent clarifications on the legal standing and representation of future generations. Social media summary Stronger permafrost thaw, COVID-19 effects and growing mental health impacts among highlights of latest climate science.
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| 21. |
- Baus, M., et al.
(author)
-
Fabrication of monolithic bidirectional switch (MBS) devices with MOS-controlled emitter structures
- 2006
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In: PROCEEDINGS OF THE 18TH INTERNATIONAL SYMPOSIUM ON POWER SEMICONDUCTOR DEVICES & ICS. ; , s. 181-184
-
Conference paper (peer-reviewed)abstract
- A novel high-voltage power device, the Monolithic Bidirectional Switch (MBS) is investigated in this work. Planar MBS devices have been fabricated by a self-aligned fabrication process using local oxidation of silicon technique and self-aligned sificidation. Results obtained from electrical characterization are compared with numerical simulations. Using highly transparent universal contacts, bidirectional switching with an excellent on/off current ratio is demonstrated. On-current densities of 75 A/cm(2) at V(on) = 3 V have been achieved even in an exploratory device structure. Simulations further demonstrate the high potential of the MBS for future power electronic systems such as the matrix converter.
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| 22. |
- Heuser, M, et al.
(author)
-
Fabrication of wire-MOSFETs on silicon-on-insulator substrate
- 2002
-
In: Microelectronic Engineering. - 0167-9317 .- 1873-5568. ; 61-2, s. 613-618
-
Journal article (peer-reviewed)abstract
- This paper describes the simulation and fabrication of N-type wire-MOSFETs with a multigate structure fabricated on silicon-on-insulator (SOI) material. Both simulations as well as experiments show that short channel effects (SCE) can be reduced by decreasing the channel width of the transistors below 100 nm. The triple-sided gate generates principally higher potential barriers in the channel, suppressing punch through effects significantly. (C) 2002 Elsevier Science B.V. All rights reserved.
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| 23. |
- Balestra, F., et al.
(author)
-
NANOSIL network of excellence-silicon-based nanostructures and nanodevices for long-term nanoelectronics applications
- 2008
-
In: Materials Science in Semiconductor Processing. - : Elsevier BV. - 1369-8001 .- 1873-4081. ; 11:5-6, s. 148-159
-
Journal article (peer-reviewed)abstract
- NANOSIL Network of Excellence [NANOSIL NoE web site < www.nanosil-noe.eu >], funded by the European Commission in the 7th Framework Programme (ICT-FP7, no 216171), aims at European scale integration of the excellent European research laboratories and their capabilities in order to strengthen scientific and technological excellence in the field of nanoelectronic materials and devices for terascale integrated circuits (ICs), and to disseminating the results in a wide scientific and industrial community. NANOSIL is exploring and assessing the science and technological aspects of nanodevices and operational regimes relevant to the n+4 technology node and beyond. It encompasses projects on nanoscale CMOS and beyond-CMOS. Innovative concepts, technologies and device architectures are proposed-with fabrication down to the finest features, and utilising a wide spectrum of advanced deposition and processing capabilities, extensive characterization and very rigorous device modeling. This work is carried out through a network of joint processing, characterization and modeling platforms. This critical interaction strengthens European integration in nanoelectronics and will speed up technological innovation for the nanoelectronics of the next two to three decades.
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| 24. |
- Baus, M, et al.
(author)
-
Fabrication of monolithic bidirectional switch devices
- 2004
-
In: Microelectronic Engineering. - 0167-9317 .- 1873-5568. ; 73-4, s. 463-467
-
Journal article (peer-reviewed)abstract
- The fabrication scheme of a novel MOS-based power device, a monolithic bidirectional switch (MBS), is presented. This concept allows the integration of a bidirectional switch with the advantages of low power consumption, small package size, and low fabrication costs. Furthermore, device simulations predict a performance benefit for power applications such as matrix converters. In an MBS, the field effect is used to control carrier concentrations in elevated structures made up of nearly intrinsic silicon. A CMOS-compatible nano-fabrication process for the MBS is proposed, employing local oxidation of silicon for self-aligned contact formation. First electrical results are presented. (C) 2004 Elsevier B.V. All rights reserved.
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| 25. |
- Baus, M, et al.
(author)
-
Monolithic Bidirectional Switch (MBS) - A novel MOS-based power device
- 2005
-
In: PROCEEDINGS OF ESSDERC 2005. - 0780392035 ; , s. 473-476
-
Conference paper (peer-reviewed)abstract
- A novel MOS-based power device, the Monolithic Bidirectional Switch (MBS), is investigated in this work. An analytical model is used to explain basic device operating principles. A self-aligned fabrication process of lateral MBS devices with Schottky contacts and local oxidation of silicon technique (LOCOS) is described. Experimental results are compared with the analytical model to analyze the influence of device parasitics. Bidirectional switching and an on/off-current ratio of more than 100 is demonstrated for MBS devices for the first time.
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| 26. |
- Förster, A, et al.
(author)
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Baseline characterization of the CO2SINK geological storage site at Ketzin, Germany
- 2006
-
In: Environmental Geosciences. - : American Association of Petroleum Geologists AAPG/Datapages. - 1075-9565 .- 1526-0984. ; 13:3, s. 145-161
-
Journal article (peer-reviewed)abstract
- Since April 2004, preparatory work prior to CO2injection hasbeen conducted in the CO2SINK Project, the European Union’sfirst research and development activity on the in-situ testing ofgeological storage of CO2near the town of Ketzin, Germany.Carbon dioxide will be injected into a saline aquifer of the TriassicStuttgart Formation in an anticlinal structure of the northeastGerman Basin. The drilling of one injection and two observationwells will commence at the end of 2006. The predrilling phasefocuses on the baseline geological parameters of the anticline. TheStuttgart Formation is lithologically heterogeneous; it consists ofsandy channel-(string)-facies rocks, with good reservoir propertiesalternating with muddy flood-plain-facies rocks of poor reservoirquality. Playa-type rocks form the immediate cap rock above theCO2SINK reservoir. A geostatistical approach has been applied todescribe the reservoir architecture between and beyond well con-trol. This model forms the basis for the generation of reservoir-dynamic models of CO2injection that assist in the planning ofinjection operations and in the understanding of CO2plume evo-lution. A verification of the geometry of the reservoir and thestructural situation of its overburden is expected from a three-dimensional baseline seismic survey that was conducted in theautumn of 2005. Laboratory experiments under simulated in-situconditions were performed to evaluate the geophysical signatureof rocks saturated with CO2. The chemical composition of thegroundwater and the CO2flux in the soil were analyzed across theKetzin anticline, providing the baseline for a monitoring programduring and after injection of CO2, targeted at the detection ofpotential CO2leakage from the storage reservoir.
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| 27. |
- Lemme, Max C., 1970-, et al.
(author)
-
Influence of channel width on n- and p-type nano-wire-MOSFETs on silicon on insulator substrate
- 2003
-
In: Microelectronic Engineering. - 0167-9317 .- 1873-5568. ; 67-8, s. 810-817
-
Journal article (peer-reviewed)abstract
- The fabrication and characterization of nanoscale n- and p-type multi-wire metal-oxide semiconductor field effect transistors (MOSFETs) with a triple gate structure on silicon-on-insulator material (SOI) is described in this paper. Experimental results are compared to simulation with special emphasis on the influence of channel width on the subthreshold behavior. Experiment and simulation show that the threshold voltage depends strongly on the wire width at dimensions below 100 urn. It is further shown that the transition from partial to full channel depletion is dependent on channel geometry. Finally, an increased on-current per chip area is demonstrated for triple-gate SOI MOSFETs compared to planar SOI devices. (C) 2003 Elsevier Science B.V. All rights reserved.
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| 28. |
- Lemme, Max C., 1970-, et al.
(author)
-
Subthreshold behavior of triple-gate MOSFETs on SOI material
- 2004
-
In: Solid-State Electronics. - : Elsevier BV. - 0038-1101 .- 1879-2405. ; 48:4, s. 529-534
-
Journal article (peer-reviewed)abstract
- The fabrication of n-type multi-wire MOSFETs on SOI material with triple-gate structures is presented. The output and transfer characteristics of devices with a gate length of 70 nm and a MESA width of 22 nm demonstrate clearly the suppression of short channel effects (SCE). In addition, these triple-gate structures are compared with planar SOI devices of comparable dimensions. The influence of biasing the substrate (back gate) is analyzed and compared to simulation data.
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| 29. |
- Lemme, Max C., 1970-, et al.
(author)
-
Subthreshold characteristics of p-type triple-gate MOSFETs
- 2003
-
In: ESSDERC 2003. - NEW YORK : IEEE. ; , s. 123-126
-
Conference paper (peer-reviewed)abstract
- The fabrication and characterization of triple-gate p-type metal-oxide semiconductor field effect transistors (p-MOSFETs) on SOI material with multiple channels is described. To demonstrate the beneficial effects of the triple-gate structure on scaling, output and transfer characteristics of 70nm printed gate length p-MOSFETs with 22nm MESA width are presented. The geometrical influence of triple-gate MESA width on subthreshold behavior is investigated in short- and long channel devices. The temperature dependence of subthreshold characteristics is discussed.
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| 30. |
- Martin, Maria A., et al.
(author)
-
Ten new insights in climate science 2021 : a horizon scan
- 2021
-
In: Global Sustainability. - : Cambridge University Press (CUP). - 2059-4798. ; 4, s. 1-20
-
Research review (peer-reviewed)abstract
- Non-technical summary: We summarize some of the past year's most important findings within climate change-related research. New research has improved our understanding about the remaining options to achieve the Paris Agreement goals, through overcoming political barriers to carbon pricing, taking into account non-CO2 factors, a well-designed implementation of demand-side and nature-based solutions, resilience building of ecosystems and the recognition that climate change mitigation costs can be justified by benefits to the health of humans and nature alone. We consider new insights about what to expect if we fail to include a new dimension of fire extremes and the prospect of cascading climate tipping elements.Technical summary: A synthesis is made of 10 topics within climate research, where there have been significant advances since January 2020. The insights are based on input from an international open call with broad disciplinary scope. Findings include: (1) the options to still keep global warming below 1.5 °C; (2) the impact of non-CO2 factors in global warming; (3) a new dimension of fire extremes forced by climate change; (4) the increasing pressure on interconnected climate tipping elements; (5) the dimensions of climate justice; (6) political challenges impeding the effectiveness of carbon pricing; (7) demand-side solutions as vehicles of climate mitigation; (8) the potentials and caveats of nature-based solutions; (9) how building resilience of marine ecosystems is possible; and (10) that the costs of climate change mitigation policies can be more than justified by the benefits to the health of humans and nature.Social media summary: How do we limit global warming to 1.5 °C and why is it crucial? See highlights of latest climate science.
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| 31. |
- Saintilan, Nicolas J., et al.
(author)
-
Petroleum as source and carrier of metals in epigenetic sediment-hosted mineralization
- 2019
-
In: Scientific Reports. - : Springer. - 2045-2322. ; 9
-
Journal article (peer-reviewed)abstract
- Sediment-hosted ore deposits contribute a significant amount (up to 65%) of the global resources of lead and zinc. Among them, the Mississippi-Valley type deposits and related oil fields often comprise large-scale hydrothermal systems where regional host rocks are stained with disseminated liquid petroleum (crude oil) and other organic compounds. Current models for the formation of those epigenetic Pb-Zn sulphide deposits consider that metals are mostly leached from basement rocks and their detrital erosional products, and transported by oxidized basinal hydrothermal fluids as chloride complexes. Sulphide precipitation mainly occurs when these basinal brines interact with fluids rich in reduced sulphur species produced mostly by thermochemical sulphate reduction (TSR) mediated by hydrocarbons. Here, using organic geochemistry and Pb isotopes, we provide evidence that petroleum and associated water were key for the formation of sulphide mineralization in the world-class sandstone-hosted ore deposit at Laisvall, not only by supplying reduced sulphur but also by contributing metals in significant amounts. The lead originally found in bitumen of the Alum Shale Formation was transported —during an arc-continent collisional event— by liquid petroleum and associated water to the site of sulphide mineralization. The alteration of petroleum by TSR made lead available for precipitation as sulphide. The petroleum-associated lead represents 40 to 60% of the metal budget in the deposit, the remainder being sourced by leaching of basement rocks.
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| 32. |
- Settele, Josef, et al.
(author)
-
Rice ecosystem services in South-east Asia
- 2018
-
In: Paddy and Water Environment. - : Springer. - 1611-2490 .- 1611-2504. ; 16:2, s. 211-224
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Journal article (other academic/artistic)
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| 33. |
- Spangenberg, C, et al.
(author)
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Disrespectful type IV pilins
- 1997
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In: Molecular microbiology. - 0950-382X. ; 25:1, s. 203-204
-
Journal article (other academic/artistic)
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| 34. |
- Suan, Guillaume, et al.
(author)
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Palaeoenvironmental significance of Toarcian black shales and event deposits from southern Beaujolais, France
- 2013
-
In: Geological Magazine. - 0016-7568 .- 1469-5081. ; 150:4, s. 728-742
-
Journal article (peer-reviewed)abstract
- New sedimentological, biostratigraphical and geochemical data recording the Toarcian Oceanic Anoxic Event (T-OAE) are reported from a marginal marine succession in southern Beaujolais, France. The serpentinum and bifrons ammonite zones record black shales with high (1-10 wt %) total organic carbon contents (TOC) and dysoxia-tolerant benthic fauna typical of the 'Schistes Carton' facies well documented in contemporaneous nearby basins. The base of the serpentinum ammonite zone, however, differs from coeval strata of most adjacent basinal series in that it presents several massive storm beds particularly enriched in juvenile ammonites and the dysoxia-tolerant, miniaturized gastropod Coelodiscus. This storm-dominated interval records a marked negative 5 parts per thousand carbonate and organic carbon isotope excursion being time-equivalent with that recording storm-and mass flow-deposits in sections of the Lusitanian Basin, Portugal, pointing to the existence of a major tempestite/turbidite event over tropical areas during the T-OAE. Although several explanations remain possible at present, we favour climatically induced changes in platform morphology and storm activity as the main drivers of these sedimentological features. In addition, we show that recent weathering, most probably due to infiltration of O-2-rich meteoric water, resulted in the preferential removal of C-12-enriched organic carbon, dramatic TOC loss and total destruction of the lamination of the black shale sequence over most of the studied exposure. These latter observations imply that extreme caution should be applied when interpreting the palaeoenvironmental significance of sediments lacking TOC enrichment and lamination from outcrops with limited surface exposures.
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| 35. |
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