86,828 research outputs found

    Nepa cinerea Linnaeus, 1758, spec. nov.

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    Nepa cinerea [spec. nov.] N. cinerea, thorace inaequali, corpore ovato. Fn. svec. 691. Nepa abdominis margine integro. Mouff. ins. 321. Scorpio palustris. Jonst. ins. 27. f. 1. 2. & t. 28. f. ad. verb. stell. Pet. gaz. t. 74. f. 4. Bradl. nat. t. 26. f. 2. C. Swamm. bibl. 1. t. 3. f. 4. Roes. ins. app. 1. p. 136. t. 22. f. 6. 7. 8. Bauh. ballon. 212. f. 2. Araneus aquaticus. Habitat in Europae Aquis.Published as part of Linnaeus, Carolus, 1758, Systema Naturae per regna tria naturae: secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis, Stockholm :Laurentius Salvius on page 440, DOI: 10.5962/bhl.title.542, http://zenodo.org/record/392220

    SARFID - A SAR approach to RFID tag location. CariPisa n.204/11 Relazione Finale

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    Il progetto SARFID ha riguardato lo sviluppo, l’ottimizzazione e il test di un sistema per la localizzazione spaziale di oggetti equipaggiati con trasponder UHF-RFID (tag). Il sistema proposto si basa su una metodologia innovativa che combina la tecnologia RFID (Radio Frequency IDentification in banda UHF) con le tecnica SAR (Synthetic Aperture Radar)

    Die Katalepsie von Nepa cinerea L. Ein Beitrag zur Kenntnis visueller Anpassungserscheinungen.

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    DIE KATALEPSIE VON NEPA CINEREA L. EIN BEITRAG ZUR KENNTNIS VISUELLER ANPASSUNGSERSCHEINUNGEN. Die Katalepsie von Nepa cinerea L. Ein Beitrag zur Kenntnis visueller Anpassungserscheinungen. (vol. XII) (-

    Limb Movements Classification Using Wearable Wireless Low-Cost Transceivers

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    A feasibility study, where small wireless transceivers are used to classify some typical limb movements used in physical therapy processes is presented. Wearable wireless low-cost commercial transceivers operating at 2.4GHzare supposed to bewidely deployed in indoor settings and on people’s bodies in tomorrow’s pervasive computing environments. The key idea of this work is to exploit their presence by collecting the received signal strength measured between those worn by a person. The measurements are used to classify a set of kinesiotherapy activities. The collected data are classified by using both support vector machine and K-nearest neighbor methods, in order to recognise the different activities

    Self-locating RFID robot for tag localization in retails

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    This paper presents a RFID-based mobile robot able of self-locating within an indoor scenario and to estimate the position of target UHF-RFID tags. To locate itself, the robot exploits a sensor-fusion method which combines data from an infrastructure of passive reference RFID tags arranged in known locations and data from rotary wheel encoders. Besides, during its motion it is able of measuring the target tag locations through a synthetic-array approach. The knowledge of the reader antenna trajectory is here achieved from the RFID-based sensor-fusion method which exhibits a localization error lower than 0.27 m for 20-m long paths in a real office environment. Then, the estimated trajectory is exploited for target tag localization with high accuracy by using the synthetic-array approach

    SAR-based Localization of UHF-RFID Tags in Smart Warehouses

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    This paper presents the application of the SAR- based localization for UHF-RFID tags in smart warehouses, when readings are acquired along multiple apertures. The reader antenna motion is achieved through a robot typically employed for item inventory. Two different estimation methods are investigated. The first one foresees an average operation among consecutive estimated tag positions when the SAR-based method is applied to single trajectories. Indeed, the second one adopts the SAR-based method jointly to the phase data collected along multiple trajectories. The method applicability is discussed by considering different trajectory configurations and different sources of error through both numerical simulations and an experimental analysis
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