Professor Kristen Nygaard (1926-2002) was a multi-talented scientist whose achievements were amply honoured in his later years. For general readers of Computer Science history Nygaard will be recognized as the creator with Professor Ole-Johan Dahl of the SIMULA programming languages and object-oriented programming. But Nygaard also had a social and political engagement that over the years broug...

The catalytic properties of Pd and Pt supported on woven glass fabrics were explored for liquid-phase hydrogenation of benzaldehyde as a model for three-phase catalytic reaction. The catalysts demonstrated high activity and are suitable materials to be used in reactors with structured catalytic bed. The main characteristics of catalytic bed are discussed. ( 1999 Elsevier Science Ltd. All rights...

In article number 2100141, Jie Ding, Baojun Li, Yushan Liu and co-workers, inspired by the glazing of elegant secret Celadon, design a solid-phase interfacial reaction strategy to prepare hydrogen evolution catalysts. Highly active Ru metal nanoparticles are localized onto MoO2-VO plane. This report provides versatile platform for preparation multi-component catalysts with high total activity.

This paper consider teams of agents with different problem-solving abilities. We can devote resource to groom only one of the agents and we are interested in which one should be chosen in order to maximize team performance. The team is engaged in a knowledge-intensive task, such as searching the solution to a problem over a large space. Agents are ranked according to their cognitive capacity, t...

The implementation of a multi-talented, dynamic virtual actor is a significant challenge given the difficulty of designing controllers even for very specific motions. Divide-and-conquer methods are a logical approach to this problem, but this requires a community of control practitioners as well as a means of integrating the fruits of their labor. We propose a framework for composable controlle...

in this research we used heavy propylene tetramer (hpt) and a1c13 —bf3 (lewis acids) ascatalyst and ethanol, n-propanol and n-butanol as co-catalyst. using lewis acids as catalyst, thehpts form molecules with higher molecular weight. since the raw materials of the reaction are byproducts of other reactions, are not pure and contain various compounds with different m.w andalso different chemical...