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In new mass-production technique, robotic insects spring to life
Devised by engineers at Harvard, the ingenious layering and folding process enables the rapid fabrication of not just microrobots, but a broad range of electromechanical devices.
In prototypes, 18 layers of carbon fiber, Kapton (a plastic film), titanium, brass, ceramic, and adhesive sheets have been laminated together in a complex, laser-cut design. The structure incorporates flexible hinges that allow the three-dimensional product -- just 2.4 millimeters tall -- to assemble in one movement, like a pop-up book.
3dprinting  robots  swarms 
9 weeks ago by patrick
[1110.5183] Diffusion of Information in Robot Swarms
"This work is devoted to communication approaches, which spread information in robot swarms. These mechanisms are useful for large-scale systems and also for such cases when a limited communication equipment does not allow routing of information packages. We focus on two approaches such as virtual fields and epidemic algorithms, discuss several aspects of hardware implementation and demonstrate experiments performed with microrobots "Jasmine"."
agent-based  swarms  communication  complex-systems  epidemiology  dynamical-systems  experiment 
december 2011 by Vaguery
[1106.1816] Monitoring Teams by Overhearing: A Multi-Agent Plan-Recognition Approach
"Recent years are seeing an increasing need for on-line monitoring of teams of cooperating agents, e.g., for visualization, or performance tracking. However, in monitoring deployed teams, we often cannot rely on the agents to always communicate their state to the monitoring system. This paper presents a non-intrusive approach to monitoring by 'overhearing', where the monitored team's state is inferred (via plan-recognition) from team-members' routine communications, exchanged as part of their coordinated task execution, and observed (overheard) by the monitoring system. Key challenges in this approach include the demanding run-time requirements of monitoring, the scarceness of observations (increasing monitoring uncertainty), and the need to scale-up monitoring to address potentially large teams. To address these, we present a set of complementary novel techniques, exploiting knowledge of the social structures and procedures in the monitored team: (i) an efficient probabilistic plan-recognition algorithm, well-suited for processing communications as observations; (ii) an approach to exploiting knowledge of the team's social behavior to predict future observations during execution (reducing monitoring uncertainty); and (iii) monitoring algorithms that trade expressivity for scalability, representing only certain useful monitoring hypotheses, but allowing for any number of agents and their different activities to be represented in a single coherent entity. We present an empirical evaluation of these techniques, in combination and apart, in monitoring a deployed team of agents, running on machines physically distributed across the country, and engaged in complex, dynamic task execution. We also compare the performance of these techniques to human expert and novice monitors, and show that the techniques presented are capable of monitoring at human-expert levels, despite the difficulty of the task."
emergent-design  agent-based  swarms  coordination  nudge 
august 2011 by Vaguery
Rhizome | Drone Ethnography
"It seems as if I'm kidding, but this sort of speculative drone-spotting is dead serious. We're seeing the full fruition of a new way of thinking in Drone Ethnography. The ongoing embrace of this thinking in the popular imagination shows that it is here to stay."
art  military  surveillance  technology  drones  robotics  photography  aesthetics  maps  swarms 
august 2011 by Nachimir
Using Swarm Intelligence to Build Targeted Anti-Cancer Nano-Drugs
The results of Geoffrey von Maltzahn et al. in their Nature Materials publication reveal that nanoparticles that communicate with each other can deliver more than 40-fold higher doses of chemotherapeutics (anti-cancer drugs) to tumors than nanoparticles that do not communicate can deliver. These results show the potential for nanoparticle communication to amplify drug delivery over that achievable by nanoparticles that work alone, similar to how insect swarms perform better as a group than the individual insects do on their own.

Scientific American: Learning from Insect Swarms: Smart Cancer Targeting

(via Social Physicist)
Misc  cancer  chaos_theory  health  Mad_Science  medicine  microbiology  nanotechnology  swarms  systems  from google
july 2011 by sarkos
BBC News - Swarms of marine turbines could 'tap the Gulf Stream'
the solution, Professor White and his team suggest, are autonomous turbines with so-called "swarm intelligence" that can navigate through the ocean currents, similar to a school of fish searching for food.
swarms  emergence  energy  climatechange 
august 2010 by oliverk
[1008.0881] A primer of swarm equilibria
"We study equilibrium configurations of swarming biological organisms subject to exogenous and pairwise endogenous forces. Beginning with a discrete dynamical model, we derive a variational description of the corresponding continuum population density. Equilibrium solutions are extrema of an energy functional, and satisfy a Fredholm integral equation. We find conditions for the extrema to be local minimizers, global minimizers, and minimizers with respect to infinitesimal Lagrangian displacements of mass. In one spatial dimension, for a variety of exogenous forces, endogenous forces, and domain configurations, we find exact analytical expressions for the equilibria.…"
swarms  complexology  agent-based  dynamical-systems  emergent-design  nudge-targets 
august 2010 by Vaguery

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