Search results

https://www.vetenskaphalsa.se/personer-med-medfodda-hjartfel-drabbas-tidigare-av-akut-hjartinfarkt/ - 2026-07-11

blodtryck – Vetenskap och Hälsa Hoppa till innehåll Vetenskap och hälsa Populärvetenskapligt om medicinsk forskning i Skåne Teman Podd Tidskrift Prenumerera Om webbplatsen Kontakt Sök Sök Etikett: blodtryck Digitalt verktyg hjälpte patienter till bättre blodtryck 2024-06-17 Ett interaktivt digitalt system för att kontrollera blodtrycket gör att fler får ett kontrollerat blodtryck. Det visar distri

https://www.vetenskaphalsa.se/tag/blodtryck/ - 2026-07-11

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

https://www.vetenskaphalsa.se/nyttig-mat-kan-halla-diabetes-i-schack-och-hjalpa-minnet/ - 2026-07-12

https://www.vetenskaphalsa.se/sa-paverkas-livsvillkoren-for-de-som-drabbas-av-brostcancer/ - 2026-07-12

In this study, a numerical model is developed to investigate the active-pressurization performance in a liquid oxygen tank. The VOF method is used to predict the thermal behavior in the liquid oxygen tank with consideration of interface phase change. The numerical model is validated against the experimental results with relative error < 5%. The effect of the gas injection temperature on the tank t

Wood ash recycling to forests after logging residues harvest is important to ensure long-term sustainable forest management, however, it is not recycled in Sweden at the level required to compensate for current logging residue out-take. A problem in this context is wood ash contamination through co-incineration of waste wood with forest fuels, a practice driven by the political goal of a circular

A transition to a more sustainable energy system is called for, and to realise such a transition governments around the world have introduced various research programmes and policy instruments. In this paper, we elaborate on how the transition of the energy system could be reinforced through evaluation of research programmes and policy instruments, focusing on energy efficiency in buildings. We ar

Compared with conventional central circulating pumps (CCCPs)in the district heating system (DHS), the DHS with distributed variable speed pumps (DVSPs)shows a great potential for energy saving. In this paper, a hybrid control scheme both using electric control valves (ECVs)and DVSPs is applied to the district heating system in Shenyang, China. This new hybrid control system results in reduction of

Residential buildings consume up to 40% of total global energy production annually. Making the residential and commercial buildings less energy dependent is essential in reduction of greenhouse gas affects. One type of such buildings are known as Net-Zero Energy Building (ZEB). This paper introduces a summary of scholar works, which have been executed in the last decade to achieve Net-ZEB by using

Decarbonising the power sector requires feasible strategies for the rapid phase-out of fossil fuels and the expansion of low-carbon sources. This study assesses the feasibility of plausible decarbonisation scenarios for the power sector in the Republic of Korea through 2050 and 2060. Our power plant stock accounting model results show that achieving zero emissions from the power sector by the mid-

This paper is an attempt to provide new perspectives on green energy defaults (GED) that promote the purchase of renewable energy electricity (REe) among consumers. We aim to complement existing studies and improve the understanding of GED, particularly when they are less, or unexpectedly, effective. To that end, we run a randomized controlled experiment and take the UK as a case study. We replica

The aim of this thesis is to compare and analyse the introduction of renewable fuel in the public transport sector, focusing on the challenges and opportunities encountered by involved stakeholders on the regional and local levels. The results contribute to answering three research questions: 1) How do organisational factors and local and regional contextual factors influence the introduction of r

For decades, Cu has been the primary dopant in CdTe photovoltaic absorbers. Typically, Cu acceptor concentrations in these devices are on the order of 1 × 1014 cm−3, which has made it notoriously difficult to directly correlate nanoscale Cu distributions to the local charge transport properties of these devices. To measure and correlate these properties, measurement techniques require high sensiti

A growing demand for renewable carbon (C) has led to intensified forest management resulting in the use of forest residues (e.g. canopy, bark or litter layer) as energy sources with potential modifications of soil properties and tree productivity. Because microbes mediate the recycling of C and nutrients sequestered in organic matter, we investigated the effects of organic matter (OM) removal on s

The work studied the concept of introducing electrolyzer waste heat in between the district heating condensers to study the effects. This was done through IPSEpro where a model of a small-scale Swedish CHP-station was built. Two different cases were analyzed, where one CHP-station was analyzed as an existing (i.e., a fixed geometry) station and the other as a future potential station with external

Using oil, gas, and coal to create platform chemicals on an enormous scale, the petrochemical industry constitutes a core part of the global energy order. Given prospects for demand growth for petrochemicals, the sector is set to become increasingly important to the fossil fuel interests. Starting from the perspective that internationalised networks are important to understand prospects for transf

The ground volume is penetrated by a duct system for injection and extraction of heat. The heat transfer properties between the ground and such a system is here characterized by a heat transfer length. The heat exchange between the soil and the ducts is represented by a heat source/sink distribution in the storage region.

Low carbon input due to increasing specialization, intensification and reduced use of bio-fertilizer, leads to soil organic carbon (SOC) decreases in arable land. This is an emerging problem in Europe in general, where 45% of the EU soils have low and declining SOC content. SOC losses from agricultural soils influence soil fertility, putting food security at risk, and contributes to greenhouse gas