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In conventional seismic surveys, there is a waiting time between sequentially fired shots. This time is determined such that the deepest reflection of interest is recorded before the following source is fired. In a survey with simultaneous or blended sources, the waiting time between the firing of shots is not dependent on the deepest reflection of interest, it is usually much shorter and/or can h

24MOD_JohanssonWillhammar2023 LTH:s 12:e Pedagogiska Inspirationskonferens, 7 december 2023 Abstract—Att introducera programmering till studenter utan programmeringsbakgrund är en utmaning, eftersom det innebär att man behöver lära sig både ett nytt språk och ett nytt sätt att strukturera sitt tänkande. Det finns idag en uppsjö av programmeringsspråk att välja på, där valet kan ske på olika grunde

https://www.lth.se/fileadmin/cee/genombrottet/konferens2023/F4_Johansson_Willhammar.pdf - 2026-06-09

An indoor positioning system (IPS) is a system to locate objects in indoor environments using radio waves, magnetic fields, acoustic, optical and video signals or other sensory information with help of a number of known reference positions. Nowadays, indoor positioning based services are used in a wide variety of areas and indoor positioning is getting considerable attention from both research and

We introduce rigorous theory for deriving first and second order backpropagation methods for Deep Neural Networks (DNN) whilst satisfying existing theory in DNN optimization. We begin by formally defining a neural network with its respective components and state the first and second order chain rule with respect to its partial derivatives. The partial derivatives in the chain rule formula are rela

This research investigates the gender dimension of the impacts of access to clean and modern energy and technology in productive uses of energy. Rural organizations led by women supported by the EnDev project Bolivia were selected for a multi-site case study. This project aims to facilitate clean and modern energy access, create and strengthen rural markets, and alleviate poverty. The energy justi

https://www.cec.lu.se/staff-pages/finances-and-purchasing/administrative-guide-2025 - 2026-07-05

The firefighter problem models the situation where an infection, a computer virus, an idea or fire etc. is spreading through a network and the goal is to save as many as possible nodes of the network through targeted vaccinations. The number of nodes that can be vaccinated at a single time-step is typically one, or more generally O(1). In a nonstandard model, the so called spreading model, the vac

Popular Abstract in Swedish Avhandlingen studerar flera olika algoritmiska problem inom grafteori och geometri, applikationerna sträcker sig från kretskortsdesign till matrismultiplikation. Vi börjar med att studera en grafteoretisk modell för det så kallade "firefigher problem". Målet med detta problemet är att rädda så mycket som möjligt av en given area genom att placera ut brandmän på relevaThis thesis studies several different algorithmic problems in graph theory and in geometry. The applications of the problems studied range from circuit design optimization to fast matrix multiplication. First, we study a graph-theoretical model of the so called ''firefighter problem''. The objective is to save as much as possible of an area by appropriately placing firefighters. We provide both n

A short and efficient total synthesis of rac-desoxygaliellalactone and (+)-desoxygaliellalactone, via the biosynthetic intermediate pregaliellalactone, is described. The synthesis was achieved in only three steps, for (+)-desoxygaliellalactone including an enantioselective alkyl propiolate addition to 4-pentenal, a palladium catalysed alkylative lactonisation and an intramolecular Diels-Alder cycl

Designing hardware using High Level Synthesis automates parts of the digital hardware design process. By automating the process control is passed from the designer to the tool, thus it is highly important that the tool generates high performance hardware in terms of area and speed. This thesis explores the tool performance of Vivado HLS using two designs implemented anew with High Level Synthesis

A shift in new venture creation can be observed from purely profit-oriented models to alternatives attempting to also answer social and environmental needs. Because of their nature, these alternatives face issues regarding their integration in traditional financial and business spheres. Shared Value Creation is a framework that attempts to analyse these ventures and those challenges. Blockchain te

In recent years, the electrification of buses in public transport systems has increased in both scale and pace. Today, there are several examples of how this transition has been handled in public transport, with partly or fully electrified bus fleets in regular operations in many cities.The research project e(+)bus has focused on how the transition to electric buses has been handled in six Swedish

Lägg till titel FÖRSÄTTSSIDA STYRDOKUMENT Kvalitetspolicy för Lunds universitet Typ av styrdokument: Policy Definition av typen av styrdokument: En policy uttrycker ledningens övergripande viljeriktning eller värden som ska beaktas inom det område policyn omfattar och sätter ramarna för ett visst handlande och utgör en stark rekommendation om ett visst handlingssätt. Beslutsfattare: Universitetsst

https://www.medarbetarwebben.lu.se/sites/medarbetarwebben.lu.se/files/2024-11/Kvalitetspolicy%20fo%CC%88r%20Lunds%20universitet.pdf - 2026-07-06

Background and Purpose-We have previously shown that delivery of brain-derived neurotrophic factor (BDNF) through direct intrahippocampal gene transduction with a viral vector suppresses the formation of new dentate granule cells triggered by global forebrain ischemia. Here, we investigated whether inhibition of endogenous BDNF alters ischemia-induced neurogenesis in the dentate gyrus. Methods-Rat

BIDS UTVC12 Lectures and seminars 2016. Schedule 2016-06-10 Date Time Room Theme Activity Group Teacher Module 1: Course Introduction 1/11 15:00-17:00 111 Course introduction Intro 1/1 AF Issues in contemporary development: The quest for growth and the internationalization of development 4/11 10:00-12:00 MA3 The Elusive Quest for Growth Lec 1/1 MF 9/11 13:00-15:00 111 The Elusive Quest for Growth

https://www.keg.lu.se/en/sites/keg.lu.se.en/files/utvc12_fall_20160610_1.pdf - 2026-07-06