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Fast Synchrotron X-Ray Tomography of Dynamic Processes in Liquid Aluminium Alloy Foam

Series of fast synchrotron X-ray tomographies are taken continuously at a rate of up to 5Hz, while aluminium alloy precursors are foamed in an X-ray transparent setup for several minutes using infra-red (IR) lasers for heating. The entire foaming process from the solid precursor to the expanded liquid foam is captured. The analysis of the sequence of tomographies is done with an emphasis on nuclea

Deformation behavior of sintered nanocrystalline silver layers

Abstract The microstructure of porous silver layers produced under different low temperature pressure-assisted sintering conditions is characterized and linked with the mechanical behavior studied insitu during X-ray diffraction. Peak profile analysis reveals important strain recovery and hardening mechanism during cyclic deformation. The competition between both mechanisms is discussed in terms o

Halo suppression in full-field x-ray Zernike phase contrast microscopy

Visible light Zernike phase contrast (ZPC) microscopy is a well established method for imaging weakly absorbing samples. The method is also used with hard x-ray photon energies for structural evaluation of material science and biological applications. However, the method suffers from artifacts that are inherent for the Zernike image formation. In this Letter, we investigate their origin and experi

On Simultaneous H2-Optimization of Several Performance Bounds

Simultaneous optimisation of several criteria is an important and interesting subject. Even the standard H2-case is non-trivial. The problem is here treated for the general MIMO case for two conflicting objectives (the results directly generalise to several performance measures). A seminorm D2 is introduced to describe the situation. The state-space solution technique in [Khargonekar and Rotea, 19

Poor blood pressure control in adults with repaired coarctation of the aorta and hypertension : a register-based study of associated factors

Background: Arterial hypertension is common in adults with repaired coarctation of the aorta, and is associated with several severe complications. Aims: This study aimed to investigate the prevalence of poorly controlled (⩾140/90 mmHg) blood pressure among patients with diagnosed hypertension and to identify associated factors. Methods: In the national register for CHD, adults with repaired coarct

No independent association between pulse wave velocity and dementia : a population-based, prospective study

OBJECTIVE:: Carotid–femoral pulse wave velocity (CFPWV), a marker of aortic stiffness, has been associated with cognitive test results and markers of cerebral small vessel disease, but its association with dementia has not been studied in detail. Our aim was to assess the association of CFPWV with prevalent and incident dementia in a large population-based study. METHODS:: In total, CFPWV was meas

Spatially Coupled Turbo-Like Codes

In this paper, we introduce the concept of spatially coupled turbo-like codes (SC-TCs) as the spatial coupling of a number of turbo-like code ensembles. In particular, we consider the spatial coupling of parallel concatenated codes, introduced by Berrou et al., and that of serially concatenated codes (SCCs), introduced by Benedetto et al. Furthermore, we propose two extensions of braided convoluti

University-society collaboration on the agenda : The rhetoric of expectations

This paper aims to contribute to the knowledge on how the concept of ‘collaboration’ is being produced and reproduced – and filled with meaning – as it is articulated in news content and opinion articles about the organisation of knowledge production within higher education in Sweden. We build on a textual analysis on the public discussion in the aftermath of the announcement of the research polic

Knowledge for Synchronized Dual-Arm Robot Programming

We present our successful efforts to improve intuitive programming of synchronized dual-arm operations in industrialrobotic assembly tasks. To this end we extend an earlier proposed skill representation (based on our work with ontologies for industrial robots) and our respective programminginterface to integrate options for the specification, adaptationand refinement of synchronization points, syn

Bank secrecy in offshore centres and capital flows : Does blacklisting matter?

This study analyses cross-border capital flows in order to verify the existence and direction of the effect of the soft regulation promoted by international organizations against banking secrecy which characterized the so called tax and financial heavens. This effect is called in the literature Stigma Effect, but both the existence and the direction of the stigma effect are far from being obvious.

Self-esteem discrepancies and identity-expressive consumption : Evidence from Norwegian adolescents

Prior research established that simultaneously holding discrepant explicit (deliberate, controlled) and implicit (automatic, uncontrolled) self-esteem gives rise to self-enhancing behaviours. Given that individuals tend to enhance their self-concepts with brands that are associated with positive identities, this study examined whether self-esteem discrepancy was related to the extent to which indi

Using the Johnson-Neyman Procedure to Detect Item Bias in Personality Tests : A Proposed New Method and Practical Guidelines for Data Analysis

I present an alternative to a widely used item-bias analysis procedure known as the ANOVA method. The new method is based on the Johnson-Neyman procedure, which is a multiple regression-based technique with properties that can overcome the major weaknesses of the ANOVA method. I introduce the proposed procedure in a non-technical manner, provide an illustrative example, and suggest guidelines for

Marketing and Market Research

In this chapter, the author presents a brief introduction of marketing and market research, and subsequently highlights the contemporary developments that influence current thinking in these areas. By familiarizing marketing academics and practitioners with the state-of-the-art discussions, this chapter aims at improving the knowledge and understanding of marketing and market research, as well as

Human pulmonary 3D models for translational research

Lung diseases belong the major causes of death worldwide. Recent innovative methodological developments now allow more and more for the use of primary human tissue and cells to model such diseases. In this regard, the review covers bronchial air-liquid interface cultures, precision cut lung slices as well as ex vivo cultures of explanted peripheral lung tissue and de-/re-cellularization models. Di