Renewable energy techniques are now gaining more and attention as the years pass by, not only because of threat climate change but also, e.g. due to serious pollution problems in some countries renewable technologies have matured can be depended upon an increasing degree. The from ocean waves bares tremendous potential a source energy, related continually been improved during last decades. In this paper, different types wave converters classified by their mechanical structure how they absorb...

The growing problem of opioid misuse has become a serious crisis in many countries. role trauma as gateway to use is currently not determined. study was undertaken assess whether traumatic injury might be associated with chronic and accompanying increased long-term mortality.Injured patients controls from Sweden were matched for age, sex municipality. After linkage Swedish health registers, consumption assessed before after trauma. Among injured patients, logistic regression used investigate...

A directly coupled linear permanent magnet generator of longitudinal flux-type is investigated. The will be used for power take-off in a wave energy converter. combined field- and circuit model, solved by time stepping finite element technique, to model analyse the electromagnetic behaviour machine. large number simulations form basis design study where influence armature current level, cables per slot, pole width investigated with respect efficiency, size, load angle. case performed chosen...

The survivability of a 1:20 scale point-absorbing wave energy converter model is considered in extreme tests with focused waves embedded regular backgrounds, as well time-series irregular waves.The heights were many times higher than the maximal stroke length device.Three different float geometries have been used tests.Peak loads are measured and compared for background range periods phase relations values power-take off damping.

To describe opioid use after ICU admission, identify factors associated with chronic critical care, and determine if is an increased risk of death.Retrospective cohort study.Sweden including all registered admissions between 2010 2018.Adults surviving the first two quarters admission were eligible for inclusion. A total 265,496 patients screened 61,094 ineligible.Admission to intensive care.Among 204,402 individuals included in cohort, 22,138 developed following care. Mean consumption peaked...

Abstract Background Sepsis is a condition where the immune response to infection becomes dysregulated and life-threatening. It not known whether lifestyle factors influence risk of sepsis. The aim present study investigate association between physical activity acquiring dying in or Methods population-based Swedish Mammography Cohort Men sent participants questionnaires 1997 have subsequently followed national registers, including National Patient Register, Intensive Care Registry Cause Death...

The aim of this study is to investigate the association between alcohol consumption and risk bacterial infection its dose-response association. Participants in Swedish Mammography Cohort Men answered lifestyle questionnaires 1997 have since been followed national registers. risks acquiring infection, intensive care unit (ICU) admission dying due were assessed with Cox regression. Among 58,078 cohort participants for 23 years, 23,035 diagnosed an 4,030 died from infection. Alcohol exhibited a...

In many wave energy concepts, power output in the MW range requires simultaneous operation of converters. particular, this is true for small point-absorbers, where a farm may contain several hundred devices. The total performance affected by hydrodynamic interactions between individual devices, and reliable tools that can model full farms are needed to study find optimal design parameters. This paper presents novel method very large farms. based on analytical multiple scattering theory uses...

A challenge while applying latching control on a wave energy converter (WEC) is to find reliable and robust strategy working in irregular waves handling the non-ideal behavior of real WECs. In this paper, model-free collaborative learning approach for latchable WECs an array presented. machine algorithm with shallow artificial neural network (ANN) used optimal times. The applied compared time that linearly correlated mean period: It remarkable ANN-based WEC achieved similar power absorption...

The presence of acute kidney injury in severe infections increases the likelihood poor outcome severalfold. A decrease serum uromodulin (sUMOD), synthetized kidney, has been proposed as a mediator this effect. Using Mendelian randomization technique, we tested hypothesis that increased sUMOD is protective infections. Analyses, however, showed no evidence effect higher levels sepsis or pneumonia.

Background Smoking has been associated with a higher risk of contracting pneumonia, but contradictory results have shown that smoking may or not decrease the dying in pneumonia. The aim this study is to investigate how any infection and pneumonia death. Method findings Participants were drawn from population-based Cohort Swedish Men Mammography Cohort, which are representative population. answered detailed lifestyle questionnaires followed national registers, such as Patient Register, Cause...

The Lysekil wave energy converter (WEC), developed by the research group of Uppsala University, has evolved through a variety mechanical designs since first prototype was installed in 2006. hundreds engineering decisions made throughout design processes have been based on combination theory, know-how from previous experiments, and educated guesses. One key parameter WECs linear generator is stroke length. A long requires taller WEC with associated economical challenges, but short limits...

Abstract In a future energy system based on renewable sources, wave will most likely play role due to its high potential and low intermittency. The power production from parks of converters point absorber type has been extensively studied. This is also the case for resource at many coastal areas around globe. Wave not yet reached commercial level, large variety technologies exist; therefore, an established method calculate technical still established. To estimate conversion, some...

Wave energy converters (WECs), which are designed to harvest ocean wave energy, have recently been improved by the installation of numerous conversion mechanisms; however, it is still difficult find an appropriate method that can compromise between strong environmental impact and robust performance transforming irregular into stable electrical power. To solve this problem, investigation varied conditions on dynamics WECs determine optimal factor for comply with long-term impacts was...

OBJECTIVES: Exposure to critical illness and intensive care may lead long-term psychologic physical impairments. To what extent ICU survivors become prolonged users of benzodiazepines after exposure is not fully explored. This study aimed describe the onset high-potency benzodiazepine use among using these drugs before admission, identify factors associated with this use, analyze whether such usage increased mortality. DESIGN: Retrospective cohort study. SETTING: Sweden, including all...

A concept is presented where the piston of a seabed based linear generator directly driven by buoy on water surface. spring connected to other end piston. Thereby absorbs energy in two ways. large number poles are used as an “electromagnetic gearbox” which gives high rate flux change stator despite slow motion. The damping force function velocity and electric output power. In studied power from rectified with diode bridge. results theoretical studies its interaction dynamics equation motion...

Abstract A software‐based measurement system using both analogue data acquisition and digital communication via a general‐purpose interface bus (GPIB) board has been developed for analysis evaluation of disc brake squeal. The is built around computer based on commercial software. Brake pressure torque, rotational speed, five different temperatures, sound emission are logged once second. If the characterised as squeal it saved to file together with other parameters. very flexible, allowing...