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Laminar Friction Factors and Colburn Factors for Ducts with Advanced Boundary Conditions

Ducts of various geometrical cross sections appear extensively in engineering applications like heat exchangers. In the available literature analytical, numerical and experimental data are available for the friction factor and the Colburn factor for a variety of thermal boundary conditions. Results for fully developed cases are commonly available, but also for the thermally and hydrodynamically de

Life at the bottleneck

As a scholar of science and technology studies (a social science field that aims to understand the social processes of knowledge production), I focused the 4 years of my Ph.D. on studying how the academic landscape in which today’s postdoctoral life scientists develop their careers influences their working practices. Some of my results paint quite a grim picture of academic careers, baring the pro

Tautology, Managerial Relevance, and Predictive Power of the RBV: The Neglected Content Dimension of Organizational Capabilities

This study examines “capabilities” in the conceptual and empirical literatures, to reveal whether indeterminateness of value is a problem within RBV, as suggested by the recent tautology debate. Conceptual studies typically relate to capabilities in terms of the desired ends of their use, whereas empirical studies conceptualize capabilities as composite constructs with desired ends and content-ori

Genetic Traits Beneficial for Xylose Utilization by Recombinant Saccharomyces cerevisiae

Saccharomyces cerevisiae ferments hexoses in lignocellulosic hydrolysates under anaerobic conditions with high rates and ethanol yields. However, S. cerevisiae is naturally unable to utilize the pentose fraction of the hydrolysates. Xylose is the most abundant pentose sugar, and although recombinant S. cerevisiae strains capable of ethanolic xylose fermentation have been obtained through metabolic

Ten Years Of Sustainable Construction Aspects From A North And A South Perspective – A Review From Sustainable Building Conferences 1998-2007.

This paper is about, from a North and South different perspective, how the international focus of sustainable construction issues has changed over the past ten years. It is a review from four different international and regional sustainable building conferences between 1998 and 2007. The paper is mostly based of the first author's notes from the conferences, especially from the plenary sessions an