Sökresultat

Non-Orthogonal Multiple Access (NOMA) is studied under statistical Channel State Information (CSI) and probabilistic constraints. Unlike the conventional power domain only NOMA, the definition of NOMA here considers both the power and the frequency domains simultaneously, where a flat power spectrum is assumed for each UE. This increases the capacity region when compared to the conventional definiti

The accelerating impacts of climate change are seen worldwide but are particularly critical in Africa, showing the importance of the UN Agenda 2030 for sustainable development. As part of this agenda, energy transition is vital. Kenya offers ideal conditions for solar photovoltaic systems, making solar energy a compelling solution for its growing electricity needs. The purpose of the thesis is to

Models of the engineering design process and of the development process nowadays present similar forms in the engineering design literature and interact in a similar way. These models are often presented as generic, in order to be used in a wide area of applications. This interaction is however not unproblematic, and in this publication we present some important issues and challenge the generic as

This paper presents the results of an accuracy study of a deterministic channel model for vehicle-to-vehicle (V2V) communications. Channel simulations obtained from the ray-tracing model developed by TU Braunschweig are compared to data gathered during the DRIVEWAY V2V channel measurement campaign at 5.6 GHz in the city of Lund in summer 2009. The analysis focuses on PDP and channel gains in an ur

Changes in evolving software systems are often managed using an issue repository. This repository may contribute to information overload in an organization, but it may also help navigating the software system. Software developers spend much effort on issue triage, a task in which the mere number of issue reports becomes a significant challenge. One specific difficulty is to determine whether a new

TV-on-Demand services have become one of the most popular Internet applications that continuously attracts high user interest. With rapidly increasing user demands, the existing network conditions may not be able to ensure a low start-up delay of video playback. Prefetching has been broadly investigated to cope with the start-up latency problem, which is also known as user perceived latency. In th

In the recent decades, one of the most phenomenal changes in many universities in Western countries is the dramatically increase of students from China. Subsequently, the thesis author mentioned that general view concerning educational tourism associates educational tourists with the international students’ mobility. This has emerged as an important part of the university students’tourism market.

Speditörens roll har ständigt utvecklats till att omfatta alltfler tjänster varvid en del, främst de större speditionsfirmorna, har börjat erbjuda lösningar inom fjärdepartslogistik. I detta koncept ingår, förutom transport och lagring, även en stor grupp tjänster kallade mervärdestjänster vilka kan utföras t.ex. i lagret, på terminal eller i köparens (tredjemans) lokaler. Jag har valt att fokuser

Peak to average power (PAPR) reduction of OFDM signals is critical in order to improve power amplifier (PA) efficiency in base stations. For massive MIMO, the complexity of these methods can become a real bottleneck in implementing low power digital signal processing chains. In this work, we consider an antenna reservation technique, which uses a low complexity clipping method to reduce signal pea

GOPAC for Folio | www.ebsco.com1 OPAC for Folio Claus Wolf cwolf@ebsco.com 26 April 2022 | www.ebsco.com2 Every time you hear me say GOPAC, please think “EBSCO’s OPAC for FOLIO EBSCO’s OPAC for FOLIO | www.ebsco.com3 Why EBSCO OPAC for FOLIO? • As libraries implement FOLIO they lose access to legacy OPAC • Libraries have many options: − Open Source: • VuFind, Blacklight, and others − Discovery: •

https://www.ub.lu.se/sites/ub.lu.se/files/2022-05/The%20new%20GOPAC%20-%20Global%20OPAC_%20Claus%20Wolf.pdf - 2026-06-28

Genom att återbruka möbler, IT-utrustning och förpackningar kan du minska universitetets klimatavtryck och kostnader. Vid inköp ska vi tänka långsiktigt och välja hållbara material och produkter. Genvägar till sidans innehåll:Möbler och annan inredningIT-utrustningFörpackningar för posters och avhandlingarMöbler och annan inredningUniversitetet har tagit fram en vägledning för anskaffning av ny in

https://www.medarbetarwebben.lu.se/stod-och-verktyg/lokaler-och-parkering/avfall-kallsortering-och-aterbruk/aterbruk-och-forebygga-avfall - 2026-06-27

Welfare state research tends to assume strong and enduring public support for welfare state institutions. We challenge this assumption and show that in times of economic crisis, positive welfare state attitudes are confronted with conflicting preferences for improvement of labour market performance. We argue that such movements in public opinion have led to issue competition among major political

The most common forms of familial thrombophilia are factor V Leiden (FVL) and prothrombin mutation (PTM). Homozygous FVL and PTM have long been feared conditions thought to cause high rates of morbidity and mortality. To analyse clinical features in patients with homozygous FVL and PTM, as well as patients with double heterozygosity for FVL and PTM. All patients with homozygous FVL, PTM or double

Background. Although the association between attention-deficit/hyperactivity disorder (ADHD) and drug use disorder (DUD) is well documented, it is unclear whether it is causal or results from familial confounding. Method. In this study we included all 551 164 individuals born in Sweden between 1991 and 1995 and used linked data from multiple nationwide registries to identify those with ADHD prior

Background. Although there are putative mechanistic links between obesity and autoimmune diseases, obesity is not considered a risk factor for most autoimmune diseases. Methods. Using the nation-wide Hospital Discharge Register we defined a cohort of 29,665 patients hospitalized for obesity since year 1964. The patients were followed for hospitalization for any of 34 autoimmune or related conditio

Autologous (auto-) and allogeneic (allo-) hematopoietic cell transplantation (HCT) are accepted treatment modalities in contemporary treatment algorithms for mantle cell lymphoma (MCL). Chimeric antigen receptor (CAR) T cell therapy recently received approval for MCL; however, its exact place and sequence in relation to HCT remain unclear. The American Society of Transplantation and Cellular Thera

This paper presents a systematic account of ethical issues actualised in different areas, as well as at different levels and stages of health care, by introducing organisational and other procedures that embody a shift towards person centred care and shared decision-making (PCC/SDM). The analysis builds on general ethical theory and earlier work on aspects of PCC/SDM relevant from an ethics perspe

I Arktis er en klimakjempe i ferd med å våkne sakte, men sikkert fra sin lange dvale: Permafrosten – grunn som kan ha vært frosset i tusenvis av år – begynner flere steder å tine på grunn av de sterkt økende temperaturene (Box m.fl. 2019). Dette kan gjøre klimaproblemet enda verre enn det allerede er, fordi det kan føre til store utslipp av drivhusgasser som CO2 og metan (CH4). Når det skjer, varmSammendragI Arktis er en klimakjempe i ferd med å våkne sakte, men sikkert fra sin lange dvale: Permafrosten – grunn som kan ha vært frosset i tusenvis av år – begynner flere steder å tine på grunn av de sterkt økende temperaturene (Box m.fl. 2019). Dette kan gjøre klimaproblemet enda verre enn det allerede er, fordi det kan føre til store utslipp av drivhusgasser som CO2 og metan (CH4). Når det s