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We present an intensive monitoring of high-resolution spectra of the Ca ii K line in the A7IV shell star φ Leo at very short (minutes, hours), short (night to night), and medium (weeks, months) timescales. The spectra show remarkable variable absorptions on timescales of hours, days, and months. The characteristics of these sporadic events are very similar to most that are observed toward the debr
Continuous full filling capillary electrochromatography with nanoparticles as pseudostationary phase interfaced with electrospray ionisation mass spectrometric detection was used for reversed phase separations with very high separation efficiency. Several batches of nanoparticles were synthesised and their electrochromatographic performance were evaluated. Different parameters, such as repeatabili
The potential and limitations of the Homogeneous Charge Compression Ignition (HCCI) engine concept has been experimentally investigated. The operation range, in terms of usable air/fuel ratio and engine load, and the emission characteristics have been studied. An 1.6 litre single cylinder engine based on a heavy duty six cylinder Volvo, was used for the tests. As follows the experimental work was
Popular Abstract in Swedish Partikelfysik och det vetenskapliga arvet Har du gått i en ljus vänlig skog om sommaren när vinden susar bland löven och små djur kilar omkring under gräset och solen skiner på din hud och kittlar din amygdala i det innersta av din hjärna? Har du någonsin reflekterat över naturens oändliga rikedom? Hur kan en värld vara uppbyggd som uppvisar en sådan komplexitet? Vill HERA-B is a high-energy physics experiment at HERA. It is a fixed-target experiment with a forward spectrometer to benefit from the strong boost of beauty hadrons. The main goal of HERA-B is to detect and measure the degree of CP violation in exclusive B-decays, with emphasis on the {em golden} decay, $golden$. A computer simulated study on this decay is presented and the accuracy of the measureme
There exist major challenges in accelerating the spatial data infrastructure (SDI) planning process in the developing countries as well as advocating for politicians to support the development of SDI, due to the high complexity of SDI, lack of knowledge and experience, and limited insight in the benefits. To address these challenges, a methodology for SDI planning in Tanzania, based on the system
Popular Abstract in Swedish Avhandlingen utgår från förhållandet att mödradödligheten traditionellt varit en tungt vägande faktor för kvinnors totala sjukdomsbörda i låginkomstländer. Mödradödligheten är starkt knuten till såväl allmänna levnadsförhållanden i samhället som till tillgång och kvalitet av professionell hälsovård. Det är därför inte förvånande att mer än 99 av 100 mödradödsfall i värlMaternal health services are the least equitable health care services in most low- and middle-income countries. Improving maternal health in Ghana continues to be a major public health challenge. Socio-economic inequalities within the country are greatly reducing the use of maternal health care services despite government policy reforms to improve access to maternal health care services and interv
Since 2009, the Swedish government has allo-cated a part of its direct funding to the Swed-ish universities based on a bibliometric indica-tor, which stems from the number of publica-tions and citations found in the Web of Science bibliographic database. This paper discusses the creation and detailed structure of the new indicator, which has met criticism from both researchers and the Swedish Rese
Purpose – As climate change shocks and stresses increasingly affect urban areas in developingcountries, resilience is imperative for the purposes of preparation, recovery and adaptation. This study aims to investigate demographic characteristics and social networks that influence the household capacity to prepare, recover and adapt when faced with prolonged droughts or erratic rainfall events in M
The traditional way to capture rate and amplitude dependence of filled rubbers is by a branched model containing elastic, viscous, and frictional branches, leading to a decoupling of the rate and amplitude dependence. In order to capture the experimentally observed phenomena with a steeper increasing dynamic modulus with frequency, for small amplitudes, a model by Besseling (1958) is revisited. In
The emergence of nodding syndrome (NS) in Northern Uganda has generated controversial views with respect to patterns, natural history, and aetiology of the disease which is yet unknown. This study explored spatial patterns of NS using spatial-temporal methods to establish its clustering patterns across both space and time. Village and year of NS onset for individual patients between the years 1990
Title: Mapping the usage of returnable packaging material and a proposal for improvements - a Case Study at Haldex AB in Landskrona Author: Annika Jönsson Supervisor: Enes Hasic & Anders Pålsson, Haldex AB, Landskrona Eva Berg, Department of Industrial Management and Logistics, Division of Engineering Logistics, Faculty of Engineering, Lund University Examiner: Jan Olhager, Department of Indus
Geomatics is a domain that has gained relevance and importance within the field of Architecture and the Built Environment. Typically, Geomatics education in Delft, Lund, Bochum, Leuven, and Zagreb was best characterised as lecture-based: traditional and relatively passive. This has changed fundamentally after March 2020. In this article, we analyse the development towards more active learning and
We demonstrate a novel dispersion-scan (d-scan) scheme for single-shot temporal characterization of ultrashort laser pulses. The novelty of this method relies on the use of a highly dispersive crystal featuring antiparallel nonlinear domains with a random distribution and size. This crystal, capable of generating a transverse second-harmonic signal, acts simultaneously as the dispersive element an
Design is often described as a profession where the result of the work is future oriented. Herbert Simon defined it as work that aims at “changing existing situations into preferred ones” . This may refer to a design process where the result can be very unpredictable even if the goal is thoroughly outlined. David Pye has portrayed this performance as “workmanship of risk” which differs from “workm
Gold nanoparticles are very interesting because of their potential applications in microelectronics, optical devices, analytical detection schemes, and biomedicine. Though shape control has been achieved in several polar solvents, the capability to prepare organosols containing elongated gold nanoparticles has been very limited. In this work we report a novel, simplified method to produce long, th
Matola, a major Mozambican city, has witnessed flooding, mainly caused by rainfall. The study aims to produce flood-hazard and flood-risk maps for Matola using the hydrological model TFM-DYN. For 2000, 2020, and 2040, the modeled extent of medium-risk area is 50.6 km2 (13.7%), 44.8 km2 (12.2%), and 39.0 km2 (10.6%) and of high-risk area is 43.3 km2 (11.8%), 31.8 km2 (8.6%), and 28.9 km2 (7.8%), re
Glaciers are one of the main sources of freshwater in cold regions. The glacier melting process can significantly impact the glacier mass balance (GMB) and contribute a large amount of runoff in cold regions. This study applied the recently developed semi-distributed glacio-hydrological conceptual model (FLEXG) to understand the glacier melting process and the effect of topography on GMB in the To
