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Most available methods for synthetic unit hydrograph (SUH) derivation involve manual, subjective fitting of a hydrograph through a few data points. Because of this tedious procedure, the generated unit hydrograph is often left unadjusted for unit runoff volume. During recent decades, use of probability distribution functions (pdfs) in developing SUH has received much attention because of its simil
Rekryterare vässade kompetensen Havsvågor – matematiska ekvationer Ljus i hjärnan kan lindra epilepsi Lunds universitets magasin | nr 5 | 2013 smarta tekniker visar djurens fLyttvägar Fångad i flytten 2 LUM nr 5 | 2013 LUM nr 5 | 2013 3 Luften finns – om man pum- par ut den dör den lilla fågeln i glaskupan! Och om man skapar högt tryck med eld och ånga och finurlighet kan man driva starka maskiner
https://www.lu.se/sites/www.lu.se/files/lunds-universitets-magasin-5-2013.pdf - 2026-05-03
En av konsekvenserna av klimatförändringen är en ökning av extrema regn. Kraftigt regn har blivit vanligare de senaste åren, troligen kommer nederbörden fortsätta att öka under kommande åren, säger forskarna. Den 10 augusti 2020, föll ett kraftigt regn i Ljungby stad som orsakade många översvämningar i privata och publika områden. Huvudsyftet med denna avhandling är att stötta de som jobbar med koOne of the realized consequences of climate change is a shift in precipitation patterns and an increase in extreme rainfall events. In addition, the growing urbanization trend associated with population and wealth growth has led to an increase in impervious surfaces while reducing groundwater recharge. In Sweden, it is expected that by the end of this century, annual precipitation will continue to
doi:10.1016/j.expneurol.2005.11.025 Neurogenin2 identifies a transplantable dopamine neuron precursor in the developing ventral mesencephalon Lachlan H. Thompson a,1, Elin Andersson a,1, Josephine B. Jensen a, Perrine Barraud a, Francois Guillemot b, Malin Parmar a, Anders Björklund a,⁎ a Wallenberg Neuroscience Center, Department of Experimental Medical Science, and Lund Strategic Center for Stem
Dust storms have been an increasing concern in the Middle East. Severe drought events and human activities, particularly water and land management, have led to emerging dust sources in the last few decades. This study combines spatio-temporal maps of land susceptibility to dust storm incidence with agricultural land use change data to examine the link between farming patterns and dust storm genera
The emergency department is a stressful environment, in which physicians are required to make fast and accurate diagnostic assessments amidst an ever increasing flood of clinical information, including a growing body of medical knowledge. Meanwhile, the digitization of medical health records in combination with recent breakthroughs in Artificial Intelligence is ushering in a new era of precision m
Occupational health and safety management systems are widely used as a systematic approach to managing occupational health and safety in organizations. One important element of which is the development of Standard Operating Procedures to ensure uniform written safety procedures throughout the organization. Such procedures are sometimes restrictive and inadequate to deal with the dynamic and changi
Today energy supply is moving towards more renewable, which brings challenges to the power grid. Intermittent power is difficult to predict and cannot be regulated in the same way as conventional power. If the grid is not dimensioned to handle the power peaks, the intermittent power can cause overload on the grid. Overload causes larger losses, can damage electrical components in the grid and/or a
Linjär och icke-linjär FE-analys av sprickbildning i vingmurar iplattrambroarTrafikverket ställer numera kravsom medfören mer detaljerad dimensioneringsprocessför vingmurar i plattrambroar. Detta innebär en ökad mängd armering i vingmuren, viket gör att kostnaden stiger för konstruktionsdelen. Orsaken till denna ökade mängdarmering har studerats i detta examensarbete.Tekniken för att simulera beteWing walls on slab frame integral bridges has traditionally been designed for mainly earth pressure and its self-weight. It has also been designed separately from the rest of the bridge. Traditionally no 3D effects have been considered in the design of the wing walls. The Swedish Transport Administration (Trafikverket) have recently introduced regulations stating that 3D effects must be considered
Att byggsektorn står inför ett rådande klimatnödläge är ett faktum. Idag investeras hundratals miljarder kronor för att i framtiden kunna producera fossilfritt stål; trots det läggs lite fokus på miljöoptimering av konstruktioner. Syftet med arbetet är att utvärdera hur parametrisk design kan användas som verktyg för att miljöoptimera stålstommar i industritrapptorn samt undersöka vilken profiltypThe fact that the construction sector faces a prevailing climate emergency is undeniable. Today, hundreds of billions of kronor are being invested to develop fossil-free steel; yet little focus is placed on environmental optimization of constructions. The purpose of this work is to evaluate how parametric design can be used as a tool for environmental optimization of steel staircase towers, as wel
Atrial fibrillation (AF) is the most prevalent arrhythmia, increasing with each year. AF is characterized by periods of rapid and irregular beating of the heart and increases the risk of stroke and heart failure. The disease often originates from ectopic beats generated by the pulmonary veins, activating the atria, creating short periods of AF. Without treatment the disease evolves, remodels the a
Offentlig-privat samverkan (OPS) är en ett långvarigt avtal mellan en offentlig beställare och en privat leverantör. Genom avtalet tar den privata parten ett ansvar för projektering, finansiering, byggnation, underhåll och drift av en infrastruktur. I utbyte mot att infrastrukturen byggs och drivs på den privata partens bekostnad betalar den offentliga beställaren en löpande avgift. Ersättningen äPublic private partnership (PPP) is a long-term agreement between a public authority and a private party. According to the agreement, the private party takes the responsibility for the design, financing, construction, maintenance, and operation of an infrastructure. In exchange for building and operating the infrastructure at the expense of the private party, the public authority pays an ongoing c
The Yaw Power Backup System (YPBS) is a safety system that needs to be incorporated in the Wind Power Plant (WPP) in order to provide emergency power during a power outage. The YPBS enables the Wind Turbine Generator (WTG) to perform a yawing operation in extreme weather conditions. The yawing operation ensures the rotor is aligned with incoming wind, minimizing the acting forces on the blades and
Energy use in buildings contributes significantly to the global energy demand and environmental impacts. Among all building services, heating, ventilation, and air conditioning (HVAC) systems consume the most energy. HVAC systems are as well one of the largest consumers of natural resources and materials in the building sector. Studies have shown that the manufacturing and operation of HVAC system
The aim of this thesis is to examine how archival institutions perceive their role in managing archives that contain witness testimonies from Holocaust survivors. Choices made by the archival institutions in regards of preservation, digization, ethics and availability to users are analyzed. Three archives are the focus of this research. The Polish Research Institute archive contains witness testim
Populärvetenskaplig sammanfattning: Kunskap om mängden kol som växter tar upp i från atmosfären är i dag en viktig frågeställning inom naturvetenskaplig forskning. Resultaten av sådan forskning kan bl.a. användas vid internationella konventioner som t.ex. Kyoto avtalet. I denna studie har jord prover från semi-arida agro-ekosystem i Sudan statistiskt analyserats för att se om skillnaden i organiskSummary: It is well documented that atmospheric carbon dioxide (CO2) is increasing globally. Many scientific studies also show that increased CO2 in the atmosphere may raise the mean global temperature and disturb climates in unforeseen ways. The Kyoto Protocol is a framework aiming for an international collaboration for the reduction of atmospheric greenhouse gases (GHG), of which CO2 is one of t
The objective of this thesis is to understand how a retail space could facilitate a broader adoption of a novel technology. I aim to respond to the following questions, (i) ‘What characterises the practice of operating a smart technology for the home?’, (ii) ‘Which are the main barriers to reaching out to a broader range of customers, as opposed to only the technology interested customers?’, and (
Byggindustrin är idag en stor källa till CO2-utsläpp. För att minska bygg- och anläggningssektorns klimatpåverkan, som idag genererar 21 procent av Sveriges utsläpp av växthusgaser, krävs en omställning mot en mer cirkulär ekonomi. Innerväggar utgör en betydande del av den färdiga byggnadens klimatavtryck. Materialval och typ av innerväggssystem kan påverka och reducera detta. Kontorsbyggnader är The construction industry today is a major source of CO2-emissions. In order to reduce the climate emissions of the building and construction sector, which today is 21 percent of Sweden's climate emissions, a transition towards a more circular economy is required. Interior walls make up a significant part of the finished building's climate impact. Material selection and type of interior wa
Ökande andel småskalig solproduktion introduceras i elnäten, detta medför möjligheter och utmaningar för nätägare. I detta arbete har möjligheten undersökts om småskalig solproduktion kan bidra till att upprätthålla spänningen i nätet vid trefasiga kortslutningar. I dagsläget är det många privatägare som installerar solceller. Denna utveckling har pågått länge, men de senaste åren har intresset sThe focus in this thesis has been active power from small scale solar production and what possible impacts an increased proportion of small scale production can have, in a larger context, during short circuit (SC) faults in the grid. The main research question prompting this work was whether active power from small scale solar pro- duction can help support voltages during SC faults, and meet LVRT-
SAMMANFATTNING En allt större andel av befolkningen sammanlever som sambor. Sambolagen (2003:376) reglerar fördelning av det gemensamma hemmet vid samboförhållandets upplösning, med huvudsyftet att erbjuda ett minimiskydd för den svagare parten. Det finns stora skillnader i det lagreglerade skyddet för en efterlevande make och en efterlevande sambo. En skillnad ligger i att makar, men inte samborSUMMARY The number of the population living as cohabitees is steadily increasing. The Cohabitees Act (2003:376) regulates the division of the mutual household in the event of the cohabitees resolvement, with the main purpose to offer a minimum protection for the weaker party. There are multiple differences in the regulating law for a surviving spouse and cohabitee. One of the differences is that s
