| 1. |
- Aad, G., et al.
(author)
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- 2013
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In: Physical Review Letters. - 1079-7114 .- 0031-9007. ; 111:23
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Journal article (peer-reviewed)
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| 2. |
- Aad, G., et al.
(author)
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- 2014
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In: Journal of High Energy Physics. - 1029-8479 .- 1126-6708. ; :6
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Journal article (peer-reviewed)
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| 3. |
- Feng, Zhaoxuan, et al.
(author)
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Microwave carbonized cellulose for trace pharmaceutical adsorption
- 2018
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In: Chemical Engineering Journal. - : Elsevier. - 1385-8947 .- 1873-3212. ; 346, s. 557-566
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Journal article (peer-reviewed)abstract
- A promising sustainable strategy to valorize cellulose to high-value adsorbents for trace pharmaceuticals, like diclofenac sodium (DCF), in the water is demonstrated. Carbon nanospheres (CN) as the DCF adsorbent were derived from cellulose through a one-pot microwave-assisted hydrothermal carbonization method. CN exhibited efficient DCF removal (100% removal of 0.001 mg/mL DCF in 30 s and 59% removal of 0.01 mg/mL DCF in 1 h). The adsorption kinetics and isotherm data were well-fitted with the pseudo-second-order kinetic model and Langmuir model, respectively. The adsorption process was endothermic and spontaneous as confirmed by the thermodynamic parameters. Multiple characterization techniques including SEM/EDS, FTIR, FTIR-imaging and zeta potential were applied to qualitatively investigate the adsorption process. π-π stacking and hydrogen bonding were proposed as the dominant adsorption interactions. CN also demonstrated effective adsorption capacity towards three other commonly-detected contaminants in the wastewater including ketoprofen (KP), benzophenone (BZP), and diphenylamine (DPA), each bearing partial structural similarity with DCF. The affinity of the contaminants towards CN followed the order DPA > BZP > DCF > KP, which could be explained by the different configurations and chemical units. It was speculated that for DCF and KP, the steric hindrance and electrostatic repulsion produced by dissociated carboxyl groups can impede the adsorption process as compared to DPA and BZP. This methodology could offer further insights into the drug adsorption on the cellulose-derived carbon adsorbents and the use of bioderived carbons for treatment of wastewaters contaminated with pharmaceuticals.
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| 4. |
- Mulligan, Gordon F.
(author)
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Recent Population and Employment Change in US Metropolitan Areas : An Application of the Adjustment Model
- 2020. - 1
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In: Development Studies in Regional Science. - : Springer. - 9789811514340 - 9789811514357 ; , s. 429-447
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Book chapter (peer-reviewed)abstract
- This chapter uses a 2 by 2 adjustment model to study the changes in population and employment across 381 US metropolitan areas between 1990 and 2015. Population levels depend upon house prices (amenities) and location (climate), while employment levels depend upon wages and industrial specialization (manufacturing, professional services). Important distinctions are drawn between the 100 largest economies (Brookings group) and the 281 smaller ones. Supply-induced growth has dominated change in the larger areas, while demand-induced growth has prevailed in the smaller areas. Utility patents are shown to have had a positive impact on employment, where this impact has been greater in the nation’s large metropolitan economies. Estimates are made for four overlapping 10-year intervals and for data pooled across the 25 years.
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| 5. |
- Aartsen, M. G., et al.
(author)
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Multiwavelength follow-up of a rare IceCube neutrino multiplet
- 2017
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In: Astronomy and Astrophysics. - : EDP SCIENCES S A. - 0004-6361 .- 1432-0746. ; 607
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Journal article (peer-reviewed)abstract
- On February 17, 2016, the IceCube real-time neutrino search identified, for the first time, three muon neutrino candidates arriving within 100 s of one another, consistent with coming from the same point in the sky. Such a triplet is expected once every 13.7 years as a random coincidence of background events. However, considering the lifetime of the follow-up program the probability of detecting at least one triplet from atmospheric background is 32%. Follow-up observatories were notified in order to search for an electromagnetic counterpart. Observations were obtained by Swift's X-ray telescope, by ASAS-SN, LCO and MASTER at optical wavelengths, and by VERITAS in the very-high-energy gamma-ray regime. Moreover, the Swift BAT serendipitously observed the location 100 s after the first neutrino was detected, and data from the Fermi LAT and HAWC observatory were analyzed. We present details of the neutrino triplet and the follow-up observations. No likely electromagnetic counterpart was detected, and we discuss the implications of these constraints on candidate neutrino sources such as gamma-ray bursts, core-collapse supernovae and active galactic nucleus flares. This study illustrates the potential of and challenges for future follow-up campaigns.
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| 6. |
- Aartsen, M. G., et al.
(author)
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Very high-energy gamma-ray follow-up program using neutrino triggers from IceCube
- 2016
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In: Journal of Instrumentation. - 1748-0221. ; 11
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Journal article (peer-reviewed)abstract
- We describe and report the status of a neutrino-triggered program in IceCube that generates real-time alerts for gamma-ray follow-up observations by atmospheric-Cherenkov telescopes (MAGIC and VERITAS). While IceCube is capable of monitoring the whole sky continuously, high-energy gamma-ray telescopes have restricted fields of view and in general are unlikely to be observing a potential neutrino-flaring source at the time such neutrinos are recorded. The use of neutrino-triggered alerts thus aims at increasing the availability of simultaneous multi-messenger data during potential neutrino flaring activity, which can increase the discovery potential and constrain the phenomenological interpretation of the high-energy emission of selected source classes (e. g. blazars). The requirements of a fast and stable online analysis of potential neutrino signals and its operation are presented, along with first results of the program operating between 14 March 2012 and 31 December 2015.
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| 7. |
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| 8. |
- Abeynanda, Hansi, et al.
(author)
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On the Primal Feasibility in Dual Decomposition Methods Under Additive and Bounded Errors
- 2023
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In: IEEE Transactions on Signal Processing. - : Institute of Electrical and Electronics Engineers (IEEE). - 1053-587X .- 1941-0476. ; 71, s. 655-669
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Journal article (peer-reviewed)abstract
- With the unprecedented growth of signal processing and machine learning application domains, there has been a tremendous expansion of interest in distributed optimization methods to cope with the underlying large-scale problems. Nonetheless, inevitable system-specific challenges such as limited computational power, limited communication, latency requirements, measurement errors, and noises in wireless channels impose restrictions on the exactness of the underlying algorithms. Such restrictions have appealed to the exploration of algorithms' convergence behaviors under inexact settings. Despite the extensive research conducted in the area, it seems that the analysis of convergences of dual decomposition methods concerning primal optimality violations, together with dual optimality violations is less investigated. Here, we provide a systematic exposition of the convergence of feasible points in dual decomposition methods under inexact settings, for an important class of global consensus optimization problems. Convergences and the rate of convergences of the algorithms are mathematically substantiated, not only from a dual-domain standpoint but also from a primal-domain standpoint. Analytical results show that the algorithms converge to a neighborhood of optimality, the size of which depends on the level of underlying distortions.
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| 9. |
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| 10. |
- Tholander, Jakob, et al.
(author)
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Multimodal Interaction in Children’s Programming with Tangible Artefacts
- 2006
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In: ICLS '06 Proceedings of the 7th international conference on Learning sciences. - Bloomington, Indiana. - 0805861742 ; , s. 771-777
-
Conference paper (peer-reviewed)abstract
- In this paper we will investigate and document some of the practices that a group of children use to form an activity of creating a screen-based interactive play world using a tangible programming system. A specific focus is on the resources that the children use to create and maintain a sense of shared understanding of what they are building. We emphasise the embodied aspects of interaction in the activity and how physical resources and bodily action must be viewed as intrinsically intertwined with the children's process of argumentation and articulation.
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