23 research outputs found
2008 Author Recognition Bibliography
No full texthttps://scholarworks.gvsu.edu/authorrecognition/1006/thumbnail.jp
MDSplus remote data access over high latency connections
No full textRemote data access is a mandatory requirement for large devices operated by international teams. Data acquired during experimental sessions should be soon available at remote sites for on-line analysis and visualization. Network channel capacity plays an important role, but overall performance depends also on the strategies adopted by the data system in order to optimize data transfer, increasing throughput and reducing latency. The ITER Remote Experimentation Centre (REC) in Rokkasho is one of the projects currently implemented within the Broader Approach agreement. The ultimate objective of the REC is to allow researchers to take part in the experimentation on ITER from a remote location. The technologies developed for the REC include Remote Data Access (RDA) tools, which allows the users to access to the experimental data, regardless of their geographical location. MDSplus is the most widespread data system that is used in the fusion community for remote data access and is the candidate technology for exporting ITER data at the REC. This paper reports the measured performance in remote data access between Europe and Japan using MDSplus and describes several strategies that have been adopted in order to optimize data transfer. The solutions recently implemented within MDSplus for data streaming and remote access of very large signals are also discussed, as they represent important features needed for RDA in large experiments
Vertical Relations Between Firms and Innovation: An Empirical Investigation of German Firms
No full textThe surge in interfirm cooperative agreements can be seen as expressing a way for firms to respond to and to organize market failure, especially in technology markets. The incentives of firms to internalize activities are to avoid the disadvantages, or capitalize on the advantages, of imperfections or disequilibria in external mechanisms of resource allocations. The purpose of this paper is to investigate empirically the occurrence and importance of different modes of vertical relations between innovating firms, suppliers and users, using data from Germany. The analysis is based on a survey conducted by the "Center for European Economic Research" (Mannheim, Germany) among 3122 firms representing 378 different lines of business, mainly in the manufacturing sector. The main results can be summarized as follows: ? 84 % of all innovating firms responded that they have had R&D cooperation agreements with either suppliers or customers or both. This percentage is even higher (99 %) if we consider only those innovating firms that have also had formal R&D departments. The phenomenon of vertical R&D cooperation is therefore widespread among German firms. ? Informal exchange of technical knowledge was perceived as the most important mode of R&D cooperation between innovating firms on one hand and customers and suppliers on the other, followed by formal methods of cooperation such as joint development teams and contractual R&D cooperation. Joint ventures and direct R&D orders to either customers or suppliers were seen as the least important modes of vertical cooperation. ? The occurrence and importance of cooperative agreements between innovating firms, users and input suppliers vary across industries. ? Results of multivariate statistical analysis (correlation, principal components and cluster analysis) suggested that the various modes of R&D cooperation between innovating firms on one hand and customers and suppliers on the other could be reduced to two subgroups: the first one includes formal modes of cooperation, the second one includes only informal exchange of technical knowledge. On this basis patterns of cooperative agreements could be established for firms operating in different industries and for firms using different product and process technologies. --
Tools to export published datasets together with metadata from IDL/Python/MATLAB and πScope
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