2,954 research outputs found
Farvandsovervågning fra rummet
No full textAdjunkt Jesper Abildgaard Larsen fra Aalborg Universitet fortæller her, hvordan man ved hjælp af overvågning fra miniature satellitter kan gøre problematiske havområder mere sikre at færdes i
Between "Freight-shippers" and Nordicists:The political implications of educational historiography in Denmark
No full textJohan Nicolai Madvigs dannelsestanker (Vol. 337):En kritisk humanist i den danske romantik
No full text() encircles the notion of education which has influenced the self-perception of the Danish elite up to the present day. Madvig (1804-1886) has occupied a special position in Danish educational tradition since he in the 1830s formulated an independent suggestion for a cultural education, which proved extremely influential in the development of the learned school in the second half of the 19th century. Jesper Eckhardt Larsen has an MA in History from the University of Copenhagen
Controlling the rheo-electric properties of graphite/carbon black suspensions by 'flow-switching'
No full textThe ability to manipulate rheological and electrical properties of colloidal carbon black gels makes them attractive in composites for energy applications such as batteries and fuel cells, where they conduct electricity and prevent sedimentation of `granular' active components. While it is commonly assumed that granular fillers have a simple additive effect on the composite properties, new phenomena can emerge unexpectedly, with some composites exhibiting a unique rheological bi-stability between solid-like and liquid-like states. Here we report such bi-stability in suspensions of non-Brownian graphite and colloidal carbon black in oil, a model system to mimic composite suspensions for energy applications. Steady shear below a critical stress elicits a transition to a persistent mechanically weak and poorly conducting state, which must be `rejuvenated' using high-stress shear to recover a stronger, high-conductivity state. Our findings highlight the highly tunable nature of binary granular/gel composite suspensions, and present new possibilities for optimizing mixing and processing conditions for Li-ion battery slurries. The dataset refers to the upcoming publication 'Controlling the rheo-electric properties of graphite/carbon black suspensions by 'flow-switching' by Thomas Larsen, John R. Royer, Fraser H. J. Laidlaw, Wilson C. K. Poon, Tom Larsen, Søren J. Andreasen, and Jesper de C. Christiansen. The SEM_images.zip contains all raw SEM images used in the main article and supplementary information
Exploring doing activism as a means for political action and social transformation in Germany
No full textCrane Scheduling on a Plate Storage
No full textOSS produces the worlds largest container ships. The first process of producing the steel ships is handling arrival and storage of steel plates until they are needed in production. Two gantry cranes carry out this task. The planning task is now to create a schedule of movements for the 2 cranes without collision, that delivers the plates needed for the given day and minimizes costs
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