Citec is a Finnish corporation providing multi-discipline engineering and information management services for power, civil, rail vehicles, process, ICT and health care industries. Citec also offers a wide range of services and solutions related to information lifecycle management. Founded in 1984, Citec consisted of two companies, Citec Engineering and Citec Information. In 2012 the two companies merged to form Citec Group. As of 2012 Citec has about 1100 employees and the turnover was approximately 66 million euro. The company is headquartered in Vaasa, Finland, and has offices in Finland, Sweden, India, France, Russia, Germany and the UK. In 2011 Sentica Partners acquired a majority stake in Citec. Wikipedia.
Hurtubia R.,University of Chile |
Nguyen M.H.,CITEC |
Glerum A.,Ecole Polytechnique Federale de Lausanne |
Bierlaire M.,Ecole Polytechnique Federale de Lausanne
Transportation Research Part A: Policy and Practice | Year: 2014
Latent class models are a convenient and intuitive way to introduce taste heterogeneity in discrete choice models by relating attributes of the decision makers with unobserved behavioral classes, hence allowing for a more accurate market segmentation. Estimation and specification of latent class models can be improved with the use of psychometric indicators that measure the effect of unobserved attributes in the individual preferences. This paper proposes a method to introduce these additional indicators in the specification of integrated latent class and discrete choice models, through the definition of measurement equations that relate the indicators to attributes of the decision maker. The method is implemented for two mode-choice case studies and compared with alternative methods to introduce indicators. Results show that the proposed method generates significantly different estimates for the class and choice models and provide additional insight into the behavior of each class. © 2014 Elsevier Ltd.
Rohlfing K.,CITEC |
Deak G.O.,University of California at San Diego
IEEE Transactions on Autonomous Mental Development | Year: 2013
Social learning takes place within an interactional loop. The contributions of this Special Issue exemplify approaches capturing the microdynamics of interaction to provide us with insights into the adaptation and learning processes. © 2013 IEEE.
Beron M.,CONICET |
Di Donato R.M.,Museo Etnografico Juan B. Ambrosetti |
Quaternary International | Year: 2012
The ethnohistorical and archaeological bibliography on mortuary practices of the indigenous societies of Pampa and Patagonia refers extensively to the use of the envelope of bodies, for different purposes. One has been to facilitate the transport of the deceased until their final place of burial. This practice has been registered on the Chenque I site, a hunters- and-gatherers cemetery located in the Parque Nacional Lihué Calel, La Pampa, Argentina, used during the last part of late Holocene. It was applied both for primary as to secondary burials, being single and multiple. Some burials surrounded by a whitish doughy substance, where shell beads are imbricated, were recovered during the excavations carried out in various areas of the site.The purpose of this paper is to communicate the results of the verification methods applied to the aforementioned substance to corroborate that it is the product of the taphonomic degradation of leather. These methods allowed an approach to the identification of the species employed, possibly Rheidae. Secondly, the state of preservation of enveloped burials was compared with others without it, in order to inquire whether this mortuary practice had an effective role in protecting the human remains. © 2012 Elsevier Ltd and INQUA.
Frontiers in Heat and Mass Transfer | Year: 2016
Urea-water solution droplet evaporation is modelled using multi-component droplet evaporation approach. The heat and mass transfer process of a multi-component droplet is implemented in the Langrangian framework through a custom code in ANSYS-Fluent R15. The evaporation process is defined by a convection-diffusion controlled model which includes the effect of Stefan flow. A rapid mixing model assumption is used for the droplet internal physics. The code is tested on a single multi-component droplet and the predicted evaporation rates at different ambient temperatures are compared with the experimental data in the literature. The approach is used to model the injection of urea-water solution spray in a duct carrying hot air to predict the urea to ammonia conversion efficiency. Thermolysis reaction of the evaporated urea and the hydrolysis of the byproduct iso-cyanic acid are solved as volumetric reactions in the Eulerian framework using laminar finite rate approach. The spray simulation results are compared with the experimental data and the numerical results of surface reaction based direct thermolysis approach available in the literature. © 2016, Global Digital Central. All rights reserved.
Agency: Cordis | Branch: FP7 | Program: CP | Phase: ICT-2007.1.3 | Award Amount: 2.83M | Year: 2008
SPIKE will develop a software platform for the easy and fast setup of business alliances. The project targets two main organisational objectives: first, outsourcing parts of the value chain to business partners (and vice versa, offering such parts in form of services); second, enabling collaboration between members of participating organisations through ad-hoc created as well as predefined business processes. SPIKE will enable collaboration and cooperation between the networked enterprises. The solution will encompass a semantically enriched service oriented infrastructure including a virtual semantic service bus for workflow control and handling and transformation of messages. At the enterprise interface level, we follow a collaborative process portal approach, capturing the users working context and seamlessly transmitting it to other applications and services according to the current workflow. This will also enable integration of legacy systems via tailored portlets and connectors. Special focus will be put on the security issues involved; the solution will include an easy-to-administer security infrastructure for the networked enterprise which will provide security services for service and workflow management.\nThe user partners will demonstrate the potential of SPIKE at the case of pilot deployments and use cases, i.e. a collaborative business alliance and two services ready for use in the networked enterprise. Because of its focus, the project will have an impact on organizations of all sizes that want to collaborate with each other. The base SPIKE components will be developed as an open source solution, with a special emphasis on easy adoption and cost feasibility. Where possible, we will build upon and enhance existing open source software. This way, SPIKE will have a special impact on SMEs. It will enable them to offer their services to potential new customers in a cost-saving and timely manner.