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Hydrogen refueling station is one of the most important parts for the hydrogen energy utilization. In this paper, a novel high multi-stage pressure reducing valve (HMSPRV) is proposed, which can be used for hydrogen stable decompression in hydrogen refueling station. In HMSPRV, the inner and outer porous shrouded valve core is used to replace piston valve core to achieve the first-stage throttling
Parental leave policies for fathers are introduced to promote father’s caregiving and gender equality in childcare. Even though the majority of father-friendly policy reforms were led by social democratic parties, a few conservative catch-all parties also proposed policies to promote father’s caregiving. How did conservative catch-all parties frame father’s caregiving when they propose policy refo
This thesis presents the development and evaluation of a virtual reality (VR) environment designed for integrated EEG, EMG, and joint movement data collection. The system combines immersive VR with biosignal acquisition technologies, including the Unicorn Hybrid Black EEG, the Myo Armband for electromyography and inertial sensing, and the Cyberglove for hand joint tracking. The goal was to create
To achieve established climate objectives, Sweden must effectively target its carbon-intensive steel industry. This study offers a social perspective on the Swedish steel industry's decarbonization, exploring how workers’ identities shape their experience of the transition. Social identity theory is utilised to explore what elements shape steelworkers’ collective and occupational identities in
Currently, many Global South countries face an unprecedented debt crisis with large portions of their spending going to debt repayments. This financial restrain hinders their capacity to address basic needs and ecological challenges, particularly as climate change exacerbates vulnerabilities. To provide a solution for this, The Nature Conservancy (TNC) launched their Nature Bonds Program aimed at
Due to the intensifying impacts of climate change, accurate estimation of global carbon stocks is crucial, with aboveground vegetation biomass representing a significant carbon reservoir. Savannahs, which cover approximately 50% of the African continent, play a vital role in carbon storage, as trees within these ecosystems contribute substantially to the continent’s total carbon stocks. Estimating
The discussion of human activities exploiting natural resources and their environmental impact has gained more traction throughout the past decade. Especially the role corporations play in these developments has caused a shift within corporate strategic considerations. As a result, today, many companies assume increasing responsibility to improve their sustainability performance. Large, internatio
The design of the cost model is motivated by the need of the customer to optimize its energy consumption and maximize the savings. Therefore, this tool will be able to manage the data from both power (geothermal heat pumps) and heating (district heating) systems, as well as outdoor temperatures, energy demand and other inputs, and determine which one is more feasible for every hour of the year. Al
The Brundtland report envisioned three sustainable dimensions for development: economic growth, ecological balance, and social inclusion with the aim to incorporate these dimensions into local, national, and global plans for sustainable development. In recent years, discussions about our society’s competitiveness and whether the three dimensions of sustainable development include all aspects of ou
Here a lung-on-a-chip device was developed and fabricated using 3D-printing of molds. The lung-on-a-chip device was used as a lung injury model by overstretching of murine lung epithelial cells (MLE-12) monolayers, resembling the injury during mechanical ventilation. The cells were exposed to 25% strain, representing pathological conditions seen in ventilator induced lung injury of patients with
Olika motiv kan influera individen till att vilja bli vegetarian, men däremot kan olika individer motiveras av olika motiv (Rosenfeld & Burrow, 2017a:85). Denna studie undersöker och behandlar följande motiv: trend-, sociala-, konsumtionskultur-, etiska- och hälsomotiv. En kvalitativ metod har tillämpats och empirin samlades in genom semistrukturerade intervjuer med vegetarianer i Sverige som
Pupils tend to experience ‘attentional fatigue’ after persistently demanding their attentional system during school hours, resulting in decreased psychological well-being and a lack of attention, along with losses of other cognitive functions. Previous research found natural elements in a school environment to restore pupils’ depleted attentional system. The present study aimed at investigating na
Facing the challenges of climate change and energy depletion, the world needs to deploy more renewable energy to replace fossil fuels. As the largest energy consumer and carbon emitter, China’s sustainable energy transition is particularly important. Owning the vast offshore wind (OW) resources, the Chinese Government has set ambitious goals on OW that provides a reliable and reasonable alternativ
We have recently shown that there is a previous unknown longitudinal movement present in the arterial wall. We aim now to investigate whether the longitudinal movement causes length alteration of the arterial wall. The objective of this paper was to describe a new non-invasive ultrasonic technique that measures the length alteration of arteries in human in-vivo. Results indicate that a significant
Background: There are several risk factors for the colonisation, infection and spreading of antibiotic resistant bacteria among elderly residents of nursing homes. An updated estimate of the native prevalence of antimicrobial resistance in uropathogens among Swedish nursing home residents is needed. Methods: Urine specimens were collected for culture and antimicrobial susceptibility testing agains
