Filetype
Visiting research fellow Contact details Email: erik_donovan [dot] hedegard [at] chem [dot] lu [dot] seOrganisation Computational Chemistry Service point: 1 WebpageErik Donovan Hedegårds profile in Lund University research portal Publications Displaying of publications. Sorted by year, then title. Filter by type AllJournal articleJournal article review Filter Magnetic Coupling in Non-Kekulé Diradi
https://www.compchem.lu.se/erik-donovan-hedegard - 2026-05-07
Research Interests Contact details Email: david [dot] harper [at] mgeo [dot] lu [dot] seOrganisation Department of Earth and Environmental Sciences (MGeo) Service point: 16 WebpageDavid Harpers profile in Lund University research portalOther affiliations Visiting research fellow Department of GeologyMy long-term research aims are focussed on the understanding of the origination and early evolution
https://www.geology.lu.se/david-harper - 2026-05-07
Associate professor | Senior lecturer Contact details Email: rola [dot] el-husseini_dean [at] svet [dot] lu [dot] seOrganisation Department of Political Science Service point: 31 WebpageRola El-Husseini Deans profile in Lund University research portalOther affiliations Researcher Centre for Advanced Middle Eastern Studies (CMES) Senior lecturer Department of Political Science Member of Strategic R
https://www.svet.lu.se/en/rola-el-husseini-dean - 2026-05-07
Vicerektor för forskningsinfrastruktur, forskarutbildning, IT och samverkan. Viktor Öwall är professor i integrerade elektroniksystem. Han tog sin civilingenjörs- och doktorsexamen i elektroteknik vid Lunds universitet 1988 respektive 1994. Under 1995 till 1996 var han postdoktor vid University of California i Los Angeles (UCLA). Han har varit rektor för Lunds tekniska högskola, LTH, vid Lunds uni
https://www.medarbetarwebben.lu.se/kategori/viktor-owall - 2026-05-07
A sports video analysis application was developed by Spiideo for mobile devices. It presents recordings from practices and competitive games for game-play analysis. Available tools, such as on-screen drawings, require a robust background foreground segmentation. The currently used segmentation method have difficulties to master the shifting conditions in weather, shadows and shirt colors. The pu
Purpose—Ischemic myocardial contracture (IMC) or ‘‘stoneheart’’ is a condition with rapid onset following circulatory death. It inhibits transplantability of hearts donated uponcirculatory death (DCD). We investigate the effectiveness of hemodynamic normalization upon withdrawal of life-sustaining therapy (WLST) in a large-animal controlled DCD model, with the hypothesis that reduction in cardiac
A broadband high gain metasurface-based Fabry–Perot resonant cavity antenna (FPRCA) for polarization reconfigurable is proposed in this article. The antenna features a microstrip source antenna with a single-layer 2 × 2 circular patch metasurface, a ground plane, and a double-layer partially reflective surface (PRS), along with four resistors and two diodes. Characteristic mode analysis (CMA) is p
Traffic measurements in broadband access networks are crucial from several points of view. A better understanding of traffic patterns can lead to more efficient network design, which leads to energy and cost savings for the operator and improved end user services. This paper reports on selected traffic measurement results from the Celtic TRAMMS project. The measurements were performed in broadband
Ontologies, formal knowledge representation, and reasoning are technologies that have begun to gain substantial interest in recent years. We present a high-level declarative approach to writing application programs for specific ontologies, based on viewing the ontology as a domain-specific language.Our approach is based on declarative meta-compilation techniques. We have implemented a tool using t
This demonstration presents a highperformance syntactic and semantic dependency parser. The system consists of a pipeline of modules that carry out the tokenization, lemmatization, part-of-speech tagging, dependency parsing, and semantic role labeling of a sentence. The system’s two main components draw on improved versions of a state-of-the-art dependency parser (Bohnet, 2009) and semantic role l
It has been proposed that six co-located antennas, namely three electric and three magnetic dipoles, can offer up to a six-fold capacity increase in wireless channels, relative to that of single antennas. In other words, six degrees of freedom (DOFs) can be supported by co-located six-port transmit and receive antenna arrays. However, due to the complexity in designing and measuring such a six-por
This paper presents a 3rd-order, 3-bit continuous time (CT) Delta-Sigma modulator for an LTE radio receiver. By adopting a return-to-zero (RZ) pulse in the innermost DAC, the modulator shows a reduced sensitivity to loop-delay variations, and the additional loop delay compensation usually needed in CT modulators can be omitted. The modulator has been implemented in a 65nm CMOS process, where it oc
With increasing usage of the Internet, energy consumption of network equipment has become a crucial challenge from both an economic and an environmental point of view. This paper combines users’ behavior of accessing the network with energy saving algorithms for energy-aware network equipment, and investigates potential energy savings in the access network. The study is based on a set of traffic d
Internet traffic from a fibre based residential access network is investigated concerning traffic volumes and link load. Also the cost of the services is analyzed. We show that 1 Mbps accesses subscribers maintain high loads, and that the price they pay per GB used is five times higher than the one paid by 100 Mbps access subscribers.
This paper describes an attempt to provide more intelligence to industrial robotics and automation systems. We develop an architecture to integrate disparate knowledge representations used in different places in robotics and automation. This knowledge integration framework, a possibly distributed entity, abstracts the components used in design or production as data sources, and provides a uniform
A compact dual-element antenna suitable for ultrawideband (UWB) MIMO operation is proposed in this work. The size of the antenna is 25 mm by 40 mm and it covers the lower UWB band of 3.15-5.15 GHz. Apart from the inherent wideband isolation obtained through the different angle and polarization characteristics in the radiation patterns of the individual elements, the gap between the two antenna ele
Popular Abstract in Swedish Populärvetenskaplig sammanfattning på svenska Abort är ett av de vanligaste kriurgiska ingreppen i Sverige. 1989 var aborttalet för hela landet 21.5 per 1000 kvinnor i åldern 15-24 år. Storstäderna Stockholm, Göteborg och Malmö har i många år haft det högsta aborttalen, vilka var för dessa 1989 28.4, 27.0 respektive 27.8. De aktuella studierna omfattar de 1466 kvinnorIn Sweden between 32-38,000 women annually elect to terminate pregnancy by means of induced abortion, though their reasons are still not well understood. The purpose of these studies, carried out at the Department of Obstetrics and gynecology and of Community Medicine at University Hospital, Malmö, was to elucidate the incidence of induced abortion in an urban population, with special emphasis on
This manuscript presents an reconfigurable architecture, suitable to process time synchronization for multiple OFDM standards. The proposed architecture is based on a coarse-grained reconfigurable cell array, and the different radio standards under analysis are IEEE 802.11n, 3GPP Long Term Evolution and Digital Video Broadcast for cellular devices. With the use of a 2-by-2 cell array, composed of
Navigation using inertial measurement units (IMUs) is an interesting area of research. Due to the low cost hardware and simple implementation, the approach looks very attractive. But the performance of the IMUs to provide sub-meter accuracy over a longer period of time is still not sufficient, so different approaches have been adopted to increase the performance at the cost of extra hardware and/o
Multi-step ahead response time prediction of CPU constrained computing systems is vital for admission control, overload protection and optimization of resource allocation in these systems. CPU constrained computing systems such as web servers can be modeled as single server queuing systems. These systems are stochastic and nonlinear. Thus, a well-designed nonlinear prediction scheme would be able
