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Using classical design methods for tillage machines does not completely guarantee a safety and satisfactory performance, due in part to the randomness of tillage forces. This randomness is derived from the variability in soil engineering properties and the variations in tool design parameters and operational conditions. In this paper, a reliability-based design approach was developed, for the firs

The aerosols from 13 common electric arc welding processes have been characterized regarding total emission, particle size distribution, elemental composition and, when applicable, the oxidation state of chromium. The characterizations have been performed systematically for different combinations of welding current and welding voltage.

A fast 2D motion estimator has been developed and evaluated. The method does not utilize block-matching or iterative solutions and is thus more computationally efficient and suitable for real-time motion estimation over the entire image. The method has been evaluated on 1) phantom measurements and 2) in vivo on the carotid artery wall of 17 subjects, where measurements of the longitudinal displace

A theoretical approach to communication management/PR based on participatory observation of 8 heads of communication in German companies

A biography on the swedish king Oscar I, 1799-1859.

The influence of hydrophobic modification on solution properties of water-soluble polymers in the semi-dilute regime have been studied. The nonionic ethyl(hydroxyethyl)cellulose (EHEC) and its hydrophobically modified analogue (HM-EHEC) are used as model substances. Interactions between the polymer molecules in solution and a third component are investigated, and in particular the influence of the

In this opinion in the Dutch financial newspaper I discuss the economic rationale behind the phenomena that charities donate to companies. This is a new way in which charities try to achieve the greatest possible impact and, for example, ensure that vaccines are also developed for commercially uninteresting markets. The Dutch tax authorities are sometimes reluctant to view this as public benefit e

The relative contribution of different microbial groups to soil organic matter (SOM) turnover and utilisation of rhizodeposits during a cropping season has remained largely unknown. We used a long-term field experiment (started in 1956), in which C3 crops were replaced with C4 silage maize in 2000, to investigate dynamics of fungi and bacterial groups and their utilisation of ‘young-C4’ and ‘old-C

Background: Pediatric asthma remains a public health challenge with enormous impact worldwide. Objective: The aim of this study was to identify and prioritize unmet clinical needs in pediatric asthma, which could be used to guide future research and policy activities. Methods: We first identified unmet needs through an open-question survey administered to international experts in pediatric asthma

Redaktionell introduktion till tidskriften Fronesis nr 64-65, tema Algoritmer.

This article introduces a logic to reason about a well-known model of opinion dynamics in social networks initially developed by Morris DeGroot as well as Keith Lehrer and Carl Wagner. The proposed logic is an extension of Łukasiewicz' fuzzy logic with additional equational expressivity, modal operators, machinery from hybrid logic and dynamic modalities. The model of opinion dynamics in social ne

Människor kategoriserar och ordnar världen omkring sig genom att konstruera gränser, producera värderingar, rangordningar och kvantifierade data. Att undersöka hur sådana ordningar konstrueras, reproduceras och ifrågasätts har länge varit en central fråga för kunskapssociologin. Att förstå sådana processer idag innebär att vi i allt större utsträckning måste förstå hur algoritmer kommit att bli en