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Jet array impingement boiling in compact space for high heat flux cooling

To achieve high heat flux cooling, a distributed confined jet array impingement boiling device was designed and tested by using HFE-7100 as working fluid. The experimental study on the heat transfer characteristics was conducted on smooth silicon surface and micro-pin-finned surfaces with mass flux ranging from 760 ∼ 3040 kg/m2·s under atmospheric pressure and an inlet subcooling of 40 K. The resu

The Best Interests of the Child Principle in Swedish Asylum Cases : The Marginalization of Children’s Rights

This article is based on a two-year research project, ‘The Best Interests of the Child – From Words to Deeds’. The aim of the article is to present and highlight findings on the discrepancy between the policy of the ‘best interests’ principle and its implementation in the asylum application procedures at the Swedish Migration Board. There is a clear ambition to implement the principle of the best

Socialt nätverk: en skyddsfaktor eller en riskfaktor?

Intimate partner violence (IPV) is a major social problem and complex subject with a lack of research. Youths are a particularly vulnerable group when it comes to IPV. A larger risk of exposure and experience of violence during the teenage years may contribute to a larger risk of violent relationships in the future. It is therefore important to notice, educate and prevent violence at an early stag

Implementering av digitala verktyg som stöd under produktionsskedet

Den konservativa byggbranschen är i utvecklingsfas då olika metoder effektiviseras. Digitaliseringen har kommit längre i utvecklingen jämfört med människan, ändå nyttjas inte de i den stora omfattningen i det vardagliga arbetet med dess utvecklade potential. I denna studie undersöks hur ekonomiskt och tidsgynnsamt det är med att tillämpa de digitala verktygen vid rapporteringen av avvikelser vid eThe conservative construction industry is in a development phase as various methods are made more efficient. Digitalization has come further in its development compared to humans, but the potential is not fully utilised in the daily work.. This study examines how economical and time-efficient it is to Implement the digital tools when reporting deviations during, for example, site inspections. An i

Beyond Survival: Trajectories of neurocognitive functioning in paediatric brain tumour patients treated with surgery alone

Paediatric tumour in brain and spinal cord is the second most common form of cancer in childhood. Previous research has shown inconclusive results regarding the neurocognitive outcomes of patients treated with surgery alone. The purpose of this retrospective, longitudinal study, was to explore the trajectories of neurocognitive functioning for these patients. Participants (N=107) with a paediatric

Modelling crop yield and harvest index : the role of carbon assimilation and allocation parameters

Crop yield improvement during the last decades has relied on increasing the ratio of the economic organ to the total aboveground biomass, known as the harvest index (HI). In most crop models, HI is set as a parameter; this empirical approach does not consider that HI not only depends on plant genotype, but is also affected by the environment. An alternative is to simulate allocation mechanisticall

Variation in breeding phenology in response to climate change in two passerine species

Increasingly warmer springs have caused phenological shifts in both plants and animals. In birds, it is well established that mean laying date has advanced to match the earlier food peak. We know less about changes in the distribution of egg-laying dates within a population and the environmental variables that determine this variation. This could be an important component of how populations respon

LaMAR: Benchmarking Localization and Mapping for Augmented Reality

Localization and mapping is the foundational technology for augmented reality (AR) that enables sharing and persistence of digital content in the real world. While significant progress has been made, researchers are still mostly driven by unrealistic benchmarks not representative of real-world AR scenarios. In particular, benchmarks are often based on small-scale datasets with low scene diversity,

Multi-scale dynamics for a lean-burn spark ignition natural gas engine under low load conditions

This work investigates the multi-scale dynamics of the combustion system in a lean-burn spark ignition natural gas engine using different gas injection timings (GIT). The in-cylinder pressure time series are measured, and the indicated mean effective pressure (IMEP) time series are calculated. The influence of GIT on the combustion system is investigated through wavelet analysis, multi-resolution

Large Interferometer For Exoplanets (LIFE) : I. Improved exoplanet detection yield estimates for a large mid-infrared space-interferometer mission

Context. One of the long-term goals of exoplanet science is the atmospheric characterization of dozens of small exoplanets in order to understand their diversity and search for habitable worlds and potential biosignatures. Achieving this goal requires a space mission of sufficient scale that can spatially separate the signals from exoplanets and their host stars and thus directly scrutinize the ex

Design and development of EQMS - An easy-to-use entry-level Quality Management System

Background: In today’s business climate, companies need to make sure they have efficient resource management and that the quality of product and services fulfills the customers constant changing expectations, potential regulations, and global environmental policies. Possible approaches for companies to address this is through more strategic purchasing and earlier involvement of purchasers in proc

Achieving consensus in networks of increasingly stubborn voters

We study opinion evolution in networks of stubborn agents discussing a sequence of issues, modeled through the so called concatenated Friedkin-Johnsen (FJ) model. It is concatenated in the sense that agents’ opinions evolve for each issue, and the final opinion is then taken as a starting point for the next issue. We consider the scenario where agents also take a vote at the end of each issue and We study opinion evolution in networks of stubborn agents discussing a sequence of issues, modeled through the so called concatenated Friedkin-Johnsen (FJ) model. It is concatenated in the sense that agents’ opinions evolve for each issue, and the final opinion is then taken as a starting point for the next issue. We consider the scenario where agents also take a vote at the end of each issue and

Crafting counter frames : Shell's corporate strategies in the Nigeria campaign, 1995–1998

In this article we analyse the actions of Royal Dutch/Shell (since 2021, Shell) considering the campaign against them and their operations in Nigeria in the mid-1990s. Using the concept counter-frames we analyse Shell's internal documentation of the campaign to understand how a multinational extractive industry engaged in disputes of legitimacy and against critiques of their operations. Focusing o

Worries and Psychological Well-Being in Potential Hematopoietic Stem Cell Donors Before Donation—A Swedish National Study

Background: The physical risks involved in donating hematopoietic stem cells have been thoroughly studied, but little is known about the psychological risks potential donors might face before donation. The aim of this study was to describe potential the pre-donation worries and psychological well-being of hematopoietic stem cell donors and investigate possible associations between donor characteri