Sökresultat

A combined measurement and Monte-Carlo simulation study was carried out in order to characterize the particle self-shielding effect of B4C grains in neutron shielding concrete. Several batches of a specialized neutron shielding concrete, with varying B4C grain sizes, were exposed to a 2 Å neutron beam at the R2D2 test beamline at the Institute for Energy Technology located in Kjeller, Norway. The

Owing to an increasing shortage of donor organs, the majority of patients with end-stage kidney disease remains reliant on extracorporeal hemodialysis (HD) in order to counter the lifelong complications of a failing kidney. While HD remains a life-saving option for these patients, mounting evidence suggests that it also fuels a vicious cycle of thromboinflammation that can increase the risk of car

Some policymakers believe that academic R&D generates insufficient economic benefits. However, they often exclude the long-term and multi-dimensional impacts that are mediated through the activities of companies, students or policymakers. This case study, which is mainly interview-based, traces and characterises such impacts applying the technological innovation systems approach to the case of

MAX IV is presently under construction at Lund, Sweden, and the first beam for the production of synchrotron radiation is expected to circulate in 2016. The whole set of 3 GeV ring beam pipes is coated with Ti-Zr-V Non Evaporable Getter (NEG) thin film in order to fulfil the average pressure requirement of 1×10-9 mbar, despite the compact magnet layout and the large aspect ratio of the vacuum cham

Metal-halide perovskite semiconductors are certainly one of the hottest topic in solar energy conversion. Optimization of both the absorber material and device architecture has led to an astoundingly rapid increase in the reported device efficiencies. Initially developed in the context of dye-sensitized solar cell research, metal-halide perovskite devices now reach efficiency values and hence need

Although being promoted as the most eco-friendly form of transportation, the shipping sector currently accounts for around 3 % of global greenhouse gas (GHG) emissions, however, with increasing global trade emissions are expected to increase. Even if energy efficiency gains have been accomplished, the majority of the global fleet continue to run on fossil fuels and the total emissions from ships a

This article serves as an introduction to the special issue on Islam in the Republic of Ireland. The introduction gives a brief overview of previous studies on Islam and Muslims in Ireland and shows their links with the studies published in this issue. Second, it presents in a concise manner the historical development of Islam in Ireland with respect to the increasing numbers of Muslims. As Irelan

Large intelligent surface (LIS) is a technology that extends massive MIMO by considering an even greater number of antennas distributed throughout vast areas. In order to be able to implement this technology, it is crucial to consider decentralized architectures so as to make the whole system scalable. We consider a LIS divided into several LIS panels of smaller size, which can be located far away

Political scientists routinely face the challenge of assessing the quality (validity and reliability) of measures in order to use them in substantive research. While stand-alone assessment tools exist, researchers rarely combine them comprehensively. Further, while a large literature informs data producers, data consumers lack guidance on how to assess existing measures for use in substantive rese

As a result of the project “A National Strategy for Standardisation of DigitalInformation Management within the Built Environment”, this report describes the framework of the strategy. The responsibility of the framework, maintenance and the update will be handled by the newly created Samhällsbyggandets Regelforum.Samhällsbyggandets Regelforum aims to contribute to the development of new and exist

Millimeter-wave cellular communication requires beamforming procedures that enable alignment of the transmitter and receiver beams as the user equipment (UE) moves. For efficient beam tracking it is advantageous to classify users according to their traffic and mobility patterns. Research to date has demonstrated efficient ways of machine learning based UE classification. Although different machine

This article aims at questioning the uses of feminist epistemologies and methodologies in the context of a fieldwork project conducted in Colombia on the return to civilian life of female combatants. While the topic « female combatants »tends to be the object of an academic over-investment, contributing to its depoliticization, the Authors discuss the various approaches, tools and methods produced

A popular model for social evolution in the Santa Barbara Channel region holds that, during times of resource stress, islanders would trade with mainlanders for plant foods in order to supplement island diets. Recently, western sea-purslane (Sesuvium verrucosum) has been suggested as a primary food product involved in this exchange. This report presents new caloric values for Sesuvium verrucosum a

Two observations serve as starting points for this paper. First, conventional risk assessment techniques provide sophisticated ways to identify and estimate hazards, but eschew the fact that there is no risk unless something of value is considered to be at stake. Second, what managers consider as being of value follows from how they organize their managerial practice. Based on these observations,