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3D numerical investigation of flow and heat transfer characteristics in smooth wavy fin-and-elliptical tube heat exchangers using new type vortex generators

3D computational analysis was performed to investigate heat transfer and pressure drop characteristics of flow in SWFET (Smooth Wavy Fin-and-Elliptical Tube) heat exchanger with four new VGs (vortex generators), RTW (rectangular trapezoidal winglet), ARW (angle rectangular winglet), CARW (curved angle rectangular winglet) and WW (Wheeler wishbone). The numerical model was well validated with the a

On continuum models for heat transfer in micro/nano-scale porous structures relevant for fuel cells

Micro or even nano-scale solid particles are applied in porous structures in different energy systems, such as fuel cells, for the objectives to enhance the catalytic reaction activities and improve the fuel utilization efficiency or/and reduce the pollutants. In addition to the charge transport and reactions, heat transfer processes in fuel cell porous electrodes are strongly affected by the smal

Engaging the History of Religions - from an Islamic Studies Perspective

The future and relevance of the history of religions discipline in the Swedish context has been discussed lately. This article is a response to this debate from an Islamic studies perspective. The authors argue that the history of religions discipline may become more relevant if a more self-critical approach is adopted, an interdisciplinary attitude upheld, and if there is an openness to learn fro

Study of electron acceleration and x-ray radiation as a function of plasma density in capillary-guided laser wakefield accelerators

Laser wakefield electron acceleration in the blow-out regime and the associated betatron X-ray radiation were investigated experimentally as a function of the plasma density in a configuration where the laser is guided. Dielectric capillary tubes were employed to assist the laser keeping self-focused over a long distance by collecting the laser energy around its central focal spot. With a 40 fs, 1

Progressive improvement in wound healing with increased therapy in haemophilia B mice

Previous work has shown that normalized haemostasis only at the time of an injury is not sufficient to promote optimal wound healing in haemophilia B (HB) mice. However, the duration of treatment required for optimal healing has not been established. The goal of these studies was to determine the effect of different durations of replacement or bypassing therapy [factor IX(FIX) or factor VIIa (FVII

Merging Percolation on Z(d) and Classical Random Graphs: Phase Transition

We study a random graph model which is a superposition of bond percolation on Z(d) with parameter p, and a classical random graph G(n,c/n). We show that this model, being a homogeneous random graph, has a natural relation to the so-called "rank I case" of inhomogeneous random graphs. This allows us to use the newly developed theory of inhomogeneous random graphs to describe the phase diagram on th

Technical Skills Assessment in a Coronary Angiography Simulator for Construct Validation.

INTRODUCTION: The aim of this study was to evaluate technical skills in a coronary angiography (CA) simulator to establish the performance level of trainees and experts in virtual CA.The traditional master-apprentice way of learning CA is by practicing on patients despite a known risk for complications during training. Safe CA training is warranted, and simulators might be one possibility. Simulat

Regulation of complement by COMP allows for a novel molecular diagnostic principle in rheumatoid arthritis.

OBJECTIVE:: Cartilage oligomeric matrix protein (COMP) is a structural component of cartilage where it catalyzes collagen fibrillogenesis. Elevated amounts of COMP are found in serum during increased turnover of cartilage associated with active joint diseases, such as rheumatoid arthritis (RA) and osteoarthritis (OA). In this study we investigated the ability of COMP to regulate complement. Such c

A model-supported participatory process for nutrient management: a socio-legal analysis of a bottom-up implementation of the EU Water Framework Directive

A methodology for local stakeholders' involvement in water management using a catchment model as a platform for dialogue has been developed and tested in the Kaggebo Bay drainage area in the southeast of Sweden. The process involved farmers, rural households not connected to municipal wastewater treatment facilities, local and regional authorities as well as different water and agricultural expert

(Dis)Empowering Technologies: ICT for Education (ICT4E) in China, Past and Present

Information and communication technologies (ICT) are often presented as the cure-all for various problems: ICTs for education (ICT4E) are considered promising tools for promoting self-directed, creative learning and bridging various divides, such as those between developed and developing countries, urban and rural regions, and so on. While the lofty goals of ICT4E are continuously being highlighte

The 6 year incidence of diabetes-associated autoantibodies in genetically at-risk children: the TEDDY study

Aims/hypothesis Islet autoantibodies, in addition to elevated blood glucose, define type 1 diabetes. These autoantibodies are detectable for a variable period of time before diabetes onset. Thus, the occurrence of islet autoantibodies is associated with the beginning of the disease process. The age at, and order in, which autoantibodies appear may be associated with different genetic backgrounds o

Discourse or Merely Noise? Regarding the Disagreement on Undocumented Migrants

Drawing on Jacques Ranciere's theorising of the political, this article analyses the disagreement on undocumented migrants in recent legislation in Sweden and within the European Union as well as in Swedish labour union practice. Both the consensus understanding of the issue of undocumented migrants and the materialisation of dissensus through the political activities of undocumented migrants are

Familial Association of Inflammatory Bowel Diseases With Other Autoimmune and Related Diseases

OBJECTIVES: Familial risk estimates are useful for genetic counseling, etiological understanding, and design of gene identification studies. We wanted to estimate the associations of ulcerative colitis (UC) and Crohn's disease (CD) with 32 autoimmune and related diseases among parents and offspring, singleton siblings, twins, and spouses. METHODS: The Multigeneration Register in Sweden provides re

Asymmetrical flow field-flow fractionation enables the characterization of molecular and supramolecular properties of cereal beta-glucan dispersions

In this paper we study the properties of molecular and supra molecular species in cereal beta-glucan solutions/dispersions by the utilization of asymmetrical flow field-flow fractionation coupled to multi-angle light scattering and refractive index (AsFlFFF-MALS-RI) detectors. The samples were purified barley and oat beta-glucans which were dissolved in aqueous solution using either mild condition

Smoking behavior and sociodemographic differences among young people: Further evidence from southern Sweden based on public health survey data.

Aims: Tobacco-smoking behaviours of young people between the age of 18 and 25 years are less understood than those of middle-aged people. The aim of this study is to contribute to improved knowledge of some of the factors that are associated with smoking and cessation among young people. Methods: We use the most recently available public health survey data from the southern region of Skåne in Swed

A global knowledge economy? Biopolitical strategies in India and the European Union

This article critiques the notion of a cross-national convergence of institutional and policy responses to science-based technologies. The continued significance of institutional legacies is demonstrated through a comparative analysis of strategies for the biopharma industry in two radically different settings: India and the European Union (EU). Tensions are evident in both the EU 'high' route and

Androgen receptor genotypes predict response to endocrine treatment in breast cancer patients.

Background:The androgen receptor (AR) is frequently expressed in breast cancers. The AR genotype may affect disease-free survival and response to endocrine therapy.Methods:In all, 634 women undergoing breast cancer surgery between 2002 and 2008 were followed until 30 June 2010. Six haplotype-tagging single-nucleotide polymorphisms in the AR, and the resulting AR diplotypes, were examined in relati