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Vätgas har potential i ett energilagringssystem eftersom det är en energibärare som är väldigt energirik och kan lagras i stor skala. Vätgas kan produceras enkelt via elektrolys av vatten och lagras i stora mängd under högt tryck, vid behov kan vätgasen sedan brännas i en kraftverksprocess och generera elektricitet. Då förbränning av vätgas med syrgas enbart bildar vattenånga kan ett förnybart eneHydrogen gas has potential to function as an energy storage solution due to its high energy content and its suitability for large scale storage. Hydrogen can be produced by water electrolysis and can be stored in large scale under high pressure, when needed the hydrogen can be burned in a thermal power plant to generate electricity. Since combustion of hydrogen with pure oxygen only yields steam,

A variety of demand side management (DSM) methods are needed to ensure electric grid reliability and to integrate increasing shares of renewable energy sources into electricity networks. To investigate whether communal laundry rooms in Stockholm represent a good candidate for employing DSM to reduce the severity of electricity load peaks, tenants are surveyed on their willingness to temporarily lo

Abstract: The food consumption of today’s world has led to an overconsumption of the earth resources. It is easy to forget that when we consume we do not only consume a product we are also consuming other peoples labour and landscapes in, many times, far off places. With daily news on environmental damages, people are becoming more aware. Consequently, people are getting more interested in the ori

A comparison between three different types of particle sizing instruments (fast mobility particle sizer, FMPS; electrical low pressure impactor, ELPI; and scanning mobility particle sizer, SMPS) and one condensation particle counter (CPC) was made to compare instrument response in terms of size distributions and number concentration. Spherical oil droplets in 39 different sizes, with geometric mea

Currently available research suggests that negative pressure wound therapy (NPWT) creates a moist wound healing environment, drains exudate, reduces tissue edema, contracts the wound edges, mechanically stimulates the wound bed, and influences blood perfusion at the wound edge, which may lead to angiogenesis and the formation of granulation tissue. Although no clear evidence is available that NPWT

Introduction: Gaming disorder was included in the 11th revision of the International Classification of Diseases (ICD 11) and the Diagnostic and Statistical Manual of Mental Disorders (DSM-5) included Internet Gaming Disorder as a tentative diagnosis. Most scholars agree upon the potential risk for pathological use of video games. The primary aim of this study was to investigate the prevalence of e

This study presents a transformative advancement in water-energy nexus management by developing a hydrostatic pressure wheel (HPW) system that simultaneously optimizes water level regulation and hydropower generation in open-channel irrigation systems (OCISs)—a dual functionality not achieved by existing technologies. While conventional waterwheels focus solely on energy production, our HPW design

The global environment suffers from utilizing fossil fuels to powering internal combustion engines (ICE), due to the massive amounts of released CO2. Besides the global impact, the local environments experience high concentrations of harmful pollutants such as NOx, CO, soot and particulate matter (PM). The automotive industry is continuously striving to find new solutions to decrease fuel consumpt

OBJECTIVE: To investigate the influence of common and low-frequency genetic variants on the risk of ischemic stroke (all IS) and etiologic stroke subtypes.METHODS: We meta-analyzed 12 individual genome-wide association studies comprising 10,307 cases and 19,326 controls imputed to the 1000 Genomes (1 KG) phase I reference panel. We selected variants showing the highest degree of association (p < 1

The aim of this study is to understand the mechanisms behind the diffusion of fired bricks in Hellenistic Europe, initiated in the north Aegean in the 4th century BC. To this end, a social diffusion model is used to simulate the available archaeological data pertaining to this process. The starting point in the construction of the model is the assumption that different categories of people contrib

In the course of my PhD work, I have been involved in the development and the construction of the Tagging System for the BGO-OD experiment at the ELSA accelerators of the University of Bonn.BGO-OD is a fixed target experiment for the investigation of the structure of the nucleon at low energies via the photoproduction of mesons. It consist of a central calorimeter and a forward spectrometer. The r

OBJECTIVE: The aim of this study was to evaluate the extent of Activities of Daily Living (ADL) ability impairment in newly arrived Danish asylum seekers. It was hypothesized that exposure to trauma and torture would negatively influence ADL performance and that measures of ADL ability would be lower in individuals exposed to torture as compared to the non-tortured.SUBJECTS: Forty-three newly arri

PurposeTo estimate Swedish experience-based value sets for EQ-5D health states using general population health survey data.MethodsApproximately 45,000 individuals valued their current health status by means of time trade off (TTO) and visual analogue scale (VAS) methods and answered the EQ-5D questionnaire, making it possible to model the association between the experience-based TTO and VAS values

The road safety barriers are today designed and installed in compliance with the European standards for Road Restraint Systems (EN 1317), which lays down common requirements for the testing and certification in all EU countries. The introduction of the European Union (EU) regulation for safety barriers, which is based on performance, has encouraged European road agencies to perform an upgrade of t

In order to generate high-voltage high-pulsed power, klystron modulators necessarily contain at least one capacitor bank charging structure supplying the energy to be released during the pulse. Conventional charging structures are based on ac/dc front-end units typically based on diode rectifiers combined with power charging structures operated in on/off mode as a second stage, producing prohibiti

Integrated cross-sectoral impact assessments facilitate a comprehensive understanding of interdependencies and potential synergies, conflicts, and trade-offs between sectors under changing conditions. This paper presents a sensitivity analysis of a European integrated assessment model, the CLIMSAVE integrated assessment platform (IAP). The IAP incorporates important cross-sectoral linkages between

Microsoft Word - Anställningsordning_beslutad US18juni2019§6a   1   LUNDS UNIVERSITETS ANSTÄLLNINGSORDNING Fastställd av universitetsstyrelsen 2019-06-18, §6a. Med stöd av 2 kap. 2 § 1 st. 9 p. högskoleförordningen (1993:100) beslutar Lunds universitet om följande anställningsordning. Innehåll: 1. Inledning 2. Grundläggande principer och regler om rekrytering och anställning 3. Läraranställningar

https://www.medicin.lu.se/sites/medicin.lu.se/files/anstallningsordning_2019.pdf - 2026-07-10

Short communications and comments Influence of brood size on moult in female Willow Warblers Staffan Bensch, Lars Gezelius, Mats Grahn,* Dennis Hasselqvist, Ake Lindstrom and Ulf Ottosson, Dept of Animal Ecology, Univ. of Lund, Ecology Building, S-223 62 Lund, Sweden Like other tropical passerine migrants adult Willow Warblers Phylloscopus trochilus undergo a fast (ca. 40 d) moult of wing and tail

https://www.luvre.lu.se/sites/luvre.lu.se/files/luvre-067benschmflrugglosan.pdf - 2026-07-10

Lundaastronom bakom Gaia   Akademisk veteran delar med sig Forskar med filmens hjälp  Idéflöde Lunds universitets magasin | Nr 7 | 2013 innovation och kultur i full frihet 2 LUM nr 7 | 2013 LUM nr 7 | 2013 3 I källaren under Geocentrum II gömmer sig ett märkligt rum. Bakom den grå källardörren öpp- nar sig en värld från istiden. Här kan geologistudenterna hacka i moränjorden och träna på att tolka

https://www.lu.se/sites/www.lu.se/files/lunds-universitets-magasin-7-2013.pdf - 2026-07-10