Search results for "Test methods"

showing 3 items of 3 documents

Mobile Robot and Mobile Manipulator Research Towards ASTM Standards Development

2016

International audience; Performance standards for industrial mobile robots and mobile manipulators (robot arms onboard mobile robots) have only recently begun development. Low cost and standardized measurement techniques are needed to characterize system performance, compare different systems, and to determine if recalibration is required. This paper discusses work at the National Institute of Standards and Technology (NIST) and within the ASTM Committee F45 on Driverless Automatic Guided Industrial Vehicles. This includes standards for both terminology, F45.91, and for navigation performance test methods, F45.02. The paper defines terms that are being considered. Additionally, the paper de…

Engineering[ INFO ] Computer Science [cs]reproducible performance02 engineering and technologyArtifact (software development)[INFO] Computer Science [cs]test methods01 natural sciencesArticleTerminology010309 optics0103 physical sciencesPerformance measurement[INFO]Computer Science [cs]smart manufacturingMobile manipulatorbusiness.industryartifactControl engineeringMobile robot021001 nanoscience & nanotechnologyMobile robot navigationRobotNISTmobile manipulator0210 nano-technologybusinessground truth
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Performance Measurement of Mobile Manipulators

2015

International audience; This paper describes a concept for measuring the reproducible performance of mobile manipulators to be used for assembly or other similar tasks. An automatic guided vehicle with an onboard robot arm was programmed to repeatedly move to and stop at a novel, reconfigurable mobile manipulator artifact (RMMA), sense the RMMA, and detect targets on the RMMA. The manipulator moved a laser retroreflective sensor to detect small reflectors that can be reconfigured to measure various manipulator positions and orientations (poses). This paper describes calibration of a multi-camera,motion capture system using a 6 degree-of-freedom metrology bar and then using the camera system…

[ INFO ] Computer Science [cs]artifactreproducible performancemobile manipulatorsmart manufacturingtest methods[INFO] Computer Science [cs]ground truth
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Genotoxicity investigations on nanomaterials: methods, preparation and characterization of test material, potential artifacts and limitations--many q…

2008

Nanomaterials display novel properties to which most toxicologists have not consciously been exposed before the advent of their practical use. The same properties, small size and particular shape, large surface area and surface activity, which make nanomaterials attractive in many applications, may contribute to their toxicological profile. This review describes what is known about genotoxicity investigations on nanomaterials published in the openly available scientific literature to-date. The most frequently used test was the Comet assay: 19 studies, 14 with positive outcome. The second most frequently used test was the micronucleus test: 14 studies, 12 of them with positive outcome. The A…

Computer scienceHealth Toxicology and Mutagenesismedicine.disease_causeNanomaterialsToxicologyGenotoxicity testingTest materialMutagenicityGeneticsmedicineAnimalsHumansParticle SizeMethods preparationNanomaterialsMechanism (biology)Mutagenicity TestsStandard methodsCharacterization (materials science)NanostructuresParticlesDNA damageBiochemical engineeringGenotoxicityTest methodsArtifactsGenotoxicityMutation research
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