01154nam0 22002771i 450 UON0008148520231205102430.36220020107d1985 |0itac50 baengUS||||m |||||Tradition and innovationRange exploitation of the Beni Mathar and the implementation of range management on communal lands in Morocco Paul BartelAnn Arbor : UMIc1985xi131 p. ; 20 cmTesi di laurea: University of Oregon, 1985AGRICOLTURAMaroccoTesi di laureaUONC024861FIUSAnn Arbor (Michigan)UONL000025338.1864POLITICA AGRARIA GOVERNATIVA IN MAROCCO21BARTELPaulUONV053662167858UMIUONV245796650ITSOL20240220RICASIBA - SISTEMA BIBLIOTECARIO DI ATENEOUONSIUON00081485SIBA - SISTEMA BIBLIOTECARIO DI ATENEOSI B Afr 4 0559 SI AA 8586 5 0559 Tradition and innovation1300789UNIOR03543nam 2200613Ia 450 991043789560332120250609110042.01-283-63165-297866139441083-642-32015-510.1007/978-3-642-32015-6(CKB)2670000000250238(EBL)1030261(OCoLC)809055926(SSID)ssj0000737740(PQKBManifestationID)11466501(PQKBTitleCode)TC0000737740(PQKBWorkID)10789079(PQKB)11302414(DE-He213)978-3-642-32015-6(MiAaPQ)EBC1030261(PPN)168320819(MiAaPQ)EBC4419402(MiAaPQ)EBC4976087(EXLCZ)99267000000025023820090910h20122013 uy 0engur|n|---|||||txtccrHigh-rate virtual instrument of marine vehicle motions for underwater navigation and ocean remote sensing /Chrystel GelinBerlin ;Heidelberg Springer2012, c20131 online resource (112 p.)Springer series on naval architecture, marine engineering, shipbuilding and shipping ;1Description based upon print version of record.3-642-32014-7 Includes bibliographical references.Introduction.-Instrumentation and data acquisition system -- Data processing -- ADCP Processing -- At-sea experiment of data acquisition system.Dead-Reckoning aided with Doppler velocity measurement has been the most common method for underwater navigation for small vehicles. Unfortunately DR requires frequent position recalibrations and underwater vehicle navigation systems are limited to periodic position update when they surface. Finally standard Global Positioning System (GPS) receivers are unable to provide the rate or precision required when used on a small vessel. To overcome this, a low cost high rate motion measurement system for an Unmanned Surface Vehicle (USV) with underwater and oceanographic purposes is proposed. The proposed onboard system for the USV consists of an Inertial Measurement Unit (IMU) with accelerometers and rate gyros, a GPS receiver, a flux-gate compass, a roll and tilt sensor and an ADCP. Interfacing all the sensors proved rather challenging because of their different characteristics. The proposed data fusion technique integrates the sensors and develops an embeddable software package, using real time data fusion methods, for a USV to aid in navigation and control as well as controlling an onboard Acoustic Doppler Current Profiler (ADCP). While ADCPs non-intrusively measure water flow, the vessel motion needs to be removed to analyze the data and the system developed provides the motion measurements and processing to accomplish this task.Springer Series on Naval Architecture, Marine Engineering, Shipbuilding and Shipping,2194-8445 ;1OceanographyRemote sensingUnderwater navigationOceanographyRemote sensing.Underwater navigation.551.460028Gelin Chrystel1062220MiAaPQMiAaPQMiAaPQBOOK9910437895603321High-rate virtual instrument of marine vehicle motions for underwater navigation and ocean remote sensing2523550UNINA