Search results for "Single cluster"

showing 3 items of 3 documents

Linking content and technology: on the geography of innovation networks in the Bergen media cluster

2017

This paper deals with the geography of innovation networks and analyses combinatorial knowledge dynamics from a single cluster perspective. Addressing firms in the media cluster in Bergen, Norway, we examine how and from where companies acquire and combine different types of knowledge for their innovation activities. The empirical analysis, which is based on structured interviews with 22 media companies, identifies two main types of cluster firms: media content providers that rely heavily on symbolic knowledge and media technology providers that draw mostly on synthetic knowledge. Even though they draw on different knowledge bases, the two types of firms are strongly interlinked in their in…

Descriptive knowledgeKnowledge managementSingle clusterbusiness.industry05 social sciences0211 other engineering and technologies021107 urban & regional planning02 engineering and technologyGateway (computer program)General Business Management and AccountingNew mediaCreative industriesManagement of Technology and Innovation0502 economics and businessHuman geographyStructured interviewCluster (physics)business050203 business & managementIndustry and Innovation
researchProduct

The ARGO-YBJ experiment in Tibet

2008

The setting up of the ARGO detector at the YangBaJing Cosmic Ray Laboratory (4300 m a.s.l., Tibet, P.R. China) has been completed during the last spring (2007). It consists of a central carpet made of 130 identical sub-units of 12 RPCs each (a "cluster"), covering a surface of about 5800 m2 with 93% active area, and a guard ring of 24 further clusters of the same type surrounding the central carpet with a lower sampling density. Signals are picked up by external electrodes of small size, thus allowing the sampling of EAS with high space-time granularity. Shower events are detected at a trigger rate of about 4 kHz. Events with a few particles detected by a single cluster are counted in scale…

PhysicsNuclear and High Energy PhysicsGamma ray burstSingle clusterTrigger rateDetectorgamma ray bursts gamma rays cosmic rays extended air showersAstronomySampling (statistics)Cosmic rayExtended air showers Cosmic rays Gamma ray sources Gamma ray burstsGamma ray sourcesGeodesyCosmic rayGuard ringExtended air showerSampling densityInstrumentationArgoNuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
researchProduct

Hunting active Brownian particles: Learning optimal behavior

2021

We numerically study active Brownian particles that can respond to environmental cues through a small set of actions (switching their motility and turning left or right with respect to some direction) which are motivated by recent experiments with colloidal self-propelled Janus particles. We employ reinforcement learning to find optimal mappings between the state of particles and these actions. Specifically, we first consider a predator-prey situation in which prey particles try to avoid a predator. Using as reward the squared distance from the predator, we discuss the merits of three state-action sets and show that turning away from the predator is the most successful strategy. We then rem…

Statistical Mechanics (cond-mat.stat-mech)Single clusterComputer scienceFOS: Physical sciencesCondensed Matter - Soft Condensed MatterSmall setActive matterSoft Condensed Matter (cond-mat.soft)Reinforcement learningStatistical physicsConcentration gradientSensory cueCondensed Matter - Statistical MechanicsBrownian motionPhysical Review E
researchProduct