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Activated charcoal traps are used in nuclear medicine departments to capture exhaled radioactive xenon gas. In the present study, the trapping performance of charcoal was investigated for different physical qualities in experimental and clinical situations. Various factors affecting the trapping capacity are identified, such as the charcoal mass, moisture and carbon�dioxide concentrations in the
Rather than exogenous endowments, natural resources can be seen as economically exploitable resources thanks to knowledge improvements. This underscores the need to understand why some natural resource abundant countries are able to develop their own technologies while others are not. We tackle this issue by looking at the evolution of engineering faculties and graduate engineers from 1850 to 1939
Heat generation in CFRP (carbon fibre reinforced plastic) with electromagnetic induction can result in several benefits to manufacturing and production. However, during induction heating of anisotropic materials such as CFRP, the temperature distribution depends on electrical and thermal conductivity in different directions. This article presents a numerical model for computing the temperature dis
Supplier relationships in the automotive industry have changed fundamentally in recent decades owing to trends such as less verticalintegration, global sourcing, simultaneous engineering, and theInternet. Suppliers have become much more important in terms ofboth production and development. The ability to manage engineeringchanges (EC) efficiently and reliably reflects the capability of thewhole su
Laser Plasma Wakefield Accelerated (LWFA) electron beams and efficiency of betatron X-ray sources is studied using laser micromachined supersonic gas jet nozzle arrays. Separate sections of the target are used for the injection, acceleration and enhancement of electron oscillation. In this report, we present the results of LWFA and X-ray generation using dynamic gas density grid built by shock-wav
Lung transplantation is an accepted treatment for end stage lung diseases and performed at two national centers in Sweden - Gothenburg and Lund. Since the start in 1990 over 1 200 patients have been transplanted. The indications are severe progressive lung diseases with short expected survival or severe negative effects on daily life. There are several contraindications among which severe other o
The chapter outlines the main themes that emerge in discussing the futures of cultural heritage tourism in the MENA region. Six main themes are identified. The tensions between the social and economic dimensions of heritage are illustrated in the construction of heritage, especially for international and domestic tourists. These tensions are also to be found in the wat in which heritage is deliber
Who is a child’s father? Is it the man who raised her, or the one whose genes she carries—or both? WIn this chapter, we look at the view that men who have raised children they falsely believed to be ‘their own’ have been victims of a form of fraud or are ‘false fathers’. We consider the question of who has been harmed in such cases, and in what the harm consists. We use conceptual analysis, a phil
I Sverige inträffar runt 5500 bränder i bostäder årligen och i ca 80 av dessa bränder omkommer en eller flera personer. Det finns en långsamt nedåtgående trend för antalet omkomna i landet och världen, men nedgången är långsam och det finns inte heller några tydliga indikationer på vad denna nedgång kan beror på.Syftet med detta arbete är att studera olika byggnadstekniska faktorer i bostäder där The purpose of this work is to study fatal residential fires and see if they are correlated with any specific building characteristics. In this report, data on fatal fires are paired with data about the properties where the fires occurred. The analysis has shown that apartment buildings are overrepresented among properties with fatal fires compared to single-family units and agricultural units. It
Deep eutectic solvents have shown the ability to promote the self-assembly of surfactants in solution. However, some differences have been found compared with self-assembly in pure water and other polar organic solvents. The behaviour of alkyltrimethylammonium bromides in choline chloride:glycerol deep eutectic solvent has been studied by means of surface tension, X-ray and neutron reflectivity an
By using a phenomenologically successful Woods-Saxon potential, I study the shape and shell structure of (A) neutron drip line nuclei with 10≤N≤60, (B) neutron-rich nuclei related to the r process with 40≤N≤90, and (C) one-particle spectra in the potential provided by the nucleus Fe70 as a representative of so-called N=40 "island of inversion" (IoI) nuclei. First, the shell structure that is uniqu
