Filtyp
In this paper a time domain formulation of the first and second precursor in a dispersive materials is reviewed. These precursors are determined by the susceptibility kernel of the medium, which characterizes the medium in a time domain formulation. The propagator operators of the fields are corner stones in the formulation. These operators are then approximated by a pertinent factorization procedur
We consider the problem of approximating functions that arise in wave-equation imaging by sums of wave packets. Our objective is to find sparse decompositions of image functions, over a finite range of scales. We also address the naturally connected task of numerically approximating the wavefront set. We present an approximation where we use the dyadic parabolic decomposition, but the approach is
Quantum annealing provides a promising avenue for obtaining good approximate solutions to difficult optimization problems. Protein folding represents one such problem. For testing novel algorithms and technologies, simplified lattice models are well suited, as they represent considerable computational challenges despite their simplicity. One such model is the HP model, where the protein is represe
Here, we have collected doctoral theses from PhD students within the NanoLund environment (2020 onward). All are directly linked to the library record, where bibliographic information and full texts are available. 2026 PhD thesesDavtyan, R. Guiding Light to Detect Life: Nanowires for Optical Biosensing. Solid State Physics, February 2026Martens, F. Manipulating Thermoacoustic Streaming: Measuring
https://www.nano.lu.se/previous-phd-theses - 2026-09-17
Universitetslektor Kontaktinformation E-post: ingrid [dot] van_dijk [at] ekh [dot] lu [dot] se Telefon: +46 46 222 03 46Organisation Ekonomisk-historiska institutionen Besöksadress: Scheelevägen 15B, Alfa 1, Lund Rumsnummer: Alfa 1:2014 Hämtställe: 10 WebbplatsIngrid van Dijks profil i Lunds universitets forskningsportalPersonlig webbplats:http://www.ingridvandijk.com/Andra roller Biträdande unive
https://www.ehl.lu.se/ingrid-van-dijk - 2026-09-17
I this thesis, optical studies of InAs quantum dots (QDs) in GaAs and InP are presented. The electronic structure of these zero dimensional structures, grown in the Stranski-Krastanow growth mode, was studied by photoluminescence spectroscopy (PL), junction space-charge techniques (JSCT) and photoconductivity (PC) measurements. For the InAs/GaAs system we present single-dot photoluminescence spec
Tenure track position as Assistant Professor in Physics: Semiconductor Photonics To expand and broaden our activities in semiconductor photonics, we are now looking for an assistant professor who will bring new ideas and create a new research direction by combining these ideas with our existing expertise and capabilities in the field of semiconductor nanostructures. You will be embedded into the s
https://www.nano.lu.se/assistant-professor-semiconductor-photonics - 2026-09-17
The observation that neural grafts can induce dyskinesias has severely hindered the development of a transplantation therapy for Parkinson's disease (PD). We addressed the hypothesis that inflammatory responses within and around an intrastriatal graft containing dopamine neurons can trigger dyskinetic behaviors. We subjected rats to unilateral nigrostriatal lesions with 6-hydroxydopamine (6-OHDA)
The limitations of a pseudo-transient approach for modeling temperature wave propagation in district heating pipes were investigated by comparing numerical predictions with experimental data. The performance of two approaches, namely a pseudo-transient approach implemented in the finite element code ANSYS and a node method, was examined for a low turbulent Reynolds number regime and small velocity
Urak Lawoi är en ursprungsbefolkning i Andamansjön som bl.a. bor på kända turistöar som Phuket, Phi Phi, Ko Lanta Yai och Ko Lipe utanför Thailands västkust. Deras språk och kultur skiljer sig från övriga thailändares, inte minst ifråga om kunskap att navigera på havet. Att bo på eller vid havet är centralt för deras identitet; det är där de fiskar, samlar föda på stränder och utför sina ritualer.On 26 December 2004, the Urak Lawoi sea people were hit by a huge tsunami that overwhelmed all of Southeast Asia causing the deaths of more than 350,000 people across the region. If the tsunami was the disaster, the “first wave”, the relief efforts and the assistance that came with it became the “second wave”, due to the social and economic changes that followed. The Urak Lawoi have for centuries,
In neuroscience a number of new techniques have been developed by means of which it has become possible to study the activity of the living human brain. By means of these techniques we are beginning to understand the neurophysiology behind environmental attitudes and preferences. In addition to an introduction to cognitive neuroscience, this invited symposium contains a number of presentations, wh
We use a unique source from the Swedish royal demesnes to examine the work and relative wages of women in sixteenth century Sweden, an economic laggard in the Early Modern period. The source pertains to workers hired on yearly contracts, a type more representative for historical labour markets than day-labour on large construction sites, and allows us to observe directly the food consumed by wor
The Transmission Loss of different kind of layered structures is investigated by means of a four microphone technique in a plane wave tube. By using the decomposition technique, incident, reflected and transmitted contributions are separated and transmission coefficient is easily calculated. In this paper a single measurement approach based on transfer matrix, taking into account reflection contri
Background: Agroecology integrates ecological agricultural production with community self-reliance, deeply rooted in indigenous knowledge. This study investigates how and why women in Zimbabwe contribute to seed preservation in agroecology, and what challenges they face in sustaining traditional seed systems. Using a qualitative approach combining focus group discussions, semi-structured interview
We propose a technique to fully characterize the temporal structure of extreme ultraviolet pulses by ionizing a bound coherent electronic wave packet. The influence of the dipole phase, which is the main obstacle for state-of-the-art pulse characterization schemes, can be eliminated by angle integration of the photoelectron spectrum. We show that in particular, atomic Rydberg wave packets are idea
Abstract not available.
Massive MIMO is considered a key technology for the future wireless communication systems. The promising properties in terms of higher spectral and transmit-energy efficiency are brought by the large number of antennas at the base station (BS). As the number of antennas increases, the aperture of the BS antenna array may become much larger, as compared to today's antenna arrays. In this case, mobi
