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A BGC-Argo Guide: Planning, Deployment, Data Handling and Usage ArchiMer
Bittig, Henry C.; Maurer, Tanya L.; Plant, Joshua N.; Schmechtig, Catherine; Wong, Annie P. S.; Claustre, Hervé; Trull, Thomas W.; Udaya Bhaskar, T. V. S.; Boss, Emmanuel; Dall’olmo, Giorgio; Organelli, Emanuele; Poteau, Antoine; Johnson, Kenneth S.; Hanstein, Craig; Leymarie, Edouard; Le Reste, Serge; Riser, Stephen C.; Rupan, A. Rick; Taillandier, Vincent; Thierry, Virginie; Xing, Xiaogang.
The Biogeochemical-Argo program (BGC-Argo) is a new profiling-float-based, ocean wide, and distributed ocean monitoring program which is tightly linked to, and has benefited significantly from, the Argo program. The community has recommended for BGC-Argo to measure six additional properties in addition to pressure, temperature and salinity measured by Argo, to include oxygen, pH, nitrate, downwelling light, chlorophyll fluorescence and the optical backscattering coefficient. The purpose of this addition is to enable the monitoring of ocean biogeochemistry and health, and in particular, monitor major processes such as ocean deoxygenation, acidification and warming and their effect on phytoplankton, the main source of energy of marine ecosystems. Here we...
Tipo: Text Palavras-chave: Ocean observation; Ocean biogeochemical cycles; Sensors; Carbon cycle; Ocean optics; Best practices; Argo.
Ano: 2019 URL: https://archimer.ifremer.fr/doc/00512/62344/66607.pdf
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A Correction for the Thermal Mass-Induced Errors of CTD Tags Mounted on Marine Mammals ArchiMer
Mensah, Vigan; Roquet, Fabien; Siegelman-charbit, Lia; Picard, Baptiste; Pauthenet, Etienne; Guinet, Christophe.
The effect of thermal mass on the salinity estimate from conductivity-temperature-depth (CTD) tags sensor mounted on marine mammals is documented, and a correction scheme is proposed to mitigate its impact. The algorithm developed here allows for a direct correction of the salinity data, rather than a correction of the sample's conductivity and temperature. The amplitude of the thermal mass-induced error on salinity and its correction are evaluated via comparison between data from CTD tags and from Sea-Bird Scientific CTD used as a reference. Thermal mass error on salinity appears to be generally O(10(-2)) g kg(-1), it may reach O(10(-1)) g kg(-1), and it tends to increase together with the magnitude of the cumulated temperature gradient (T-HP) within the...
Tipo: Text Palavras-chave: Data processing; In situ oceanic observations; Instrumentation; Sensors; Profilers; Oceanic.
Ano: 2018 URL: https://archimer.ifremer.fr/doc/00585/69697/67577.pdf
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ACHPA: A sensor based system for automatic environmental control in hydroponics Ciênc. Tecnol. Aliment.
SIDDIQ,Asif; TARIQ,Muhammad Owais; ZEHRA,Anum; MALIK,Salman.
Abstract The trend towards tunnel farming and hydroponic systems is increasing owing to the climatic changes as well as the need to increase crop yield. Hydroponic is a technique of growing plants without soil. Tunnel farming and hydroponic system requires controlled environmental parameters like temperature, humidity and soil moisture for better production of crops. This paper presents an effective method, named, ACHPA (Automatically Controlled Hydro-Ponic Agriculture) scheme that monitor and controls environmental parameters using sensors and controller. ACHPA provides better environmental control over traditional manual monitoring and controlling, thus yield high-quality crops. Sensor based monitoring and control system regulates the temperature and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Hydroponics; Environmental control; Sensors; Controller; Yield.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612019005031115
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Applications of electronic noses in meat analysis Ciênc. Tecnol. Aliment.
GÓRSKA-HORCZYCZAK,Elżbieta; GUZEK,Dominika; MOLĘDA,Zuzanna; WOJTASIK-KALINOWSKA,Iwona; BRODOWSKA,Marta; WIERZBICKA,Agnieszka.
Abstract Electronic noses are devices able to characterize and differentiate the aroma profiles of various food, especially meat and meat products. During recent years e-noses have been widely used in food analysis and proved to provide a fast, simple, non-expensive and non-destructive method of food assessment and quality control. The aim of this study is to summarize the most important features of this analytic tool and to present basic fields and typical areas of e-nose use as well as most commonly used sensor types and patterns for e-nose design. Prospects for the future development of this technique are presented. Methods and research results presented in this manuscript may be a guideline for practical e-nose use.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Electronic nose; Sensors; Gas chromatography; Odour.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612016000300389
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Argos-3 Satellite Communication System: Implementation on the Arvor Oceanographic Profiling Floats ArchiMer
Andre, Xavier; Moreau, Bertrand; Le Reste, Serge.
The scientific community observes the ocean for applications in the fields of oceanography and climate research. In order to recover in situ data, more than 3,000 profiling floats are operated in the framework of the Argo Program. Each float performs cycles between the sea surface and a depth of 2,000 meters. Scientific data are gathered while the float is travelling upward from the depths of the oceans, and are then transmitted via a satellite communication system at the end of each cycle. During its time at the surface, mainly dedicated to transmissions, the float is vulnerable and subject to drift, which limits its use in many studies. Moreover, transmission times are becoming longer due to a trend towards high resolution or multi-sensor profiles....
Tipo: Text Palavras-chave: Buoy observations; In situ oceanic observations; Instrumentation; Sensors; Profilers; Oceanic.
Ano: 2015 URL: http://archimer.ifremer.fr/doc/00284/39519/38011.pdf
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Cartographie sous-marine: Etat de l'art et problemes ArchiMer
Renard, V.
The side looking sonars have been developed for greater swath coverage, digital processing of the signals has improved the quality of the images and interferometric techniques have been used to determine the depth of the bottom features. A review of the systems existing today is presented. Documents such as graphs, block diagrams, images, maps, sections, created from data acquired at sea level suffer from a filtering or smoothing effect that restricts the representativity of the measured parameters and therefore limits their interpretation. The greater the depth of the seafloor, the greater the filtering. It is due not only to the nature of the measured phenomenon but also the characteristics of the sensors, to their operation and to the data processing....
Tipo: Text Palavras-chave: Bathymetry; Cartography; Sensors; Echosounders; Acoustic imagery; Acoustics; Ocean floor; Seafloor mapping.
Ano: 1990 URL: http://archimer.ifremer.fr/doc/1990/acte-1147.pdf
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Controle commande d'un robot sousmarin ArchiMer
Durand, D; Domingo, J; Levallois, E.
This system is composed of a high accuracy hydraulic manipulator arm with 6 degrees of freedom, for high loads (2000 daN), using ultrasound proximetry and contact force measurement data to carry out the subsea connection of bottom oil wells. An expert system controls the connection phases and generates the sequences of commands to be executed by the robot. The safety systems and failure modes are also taken into account. A graphic operator station provides easy control. Each connection phase generates a graphic representation of the robot status and all the proprioceptive and exteroceptive sensors. The control/command system, although it is designed to carry out a subsea connection by means of a manipulator arm, can be adapted to any type of process. For...
Tipo: Text Palavras-chave: Marine technology; Acoustics; Connecting; Connectors; Oil wells; Sensors; Hydraulics; Robots; Manipulators.
Ano: 1990 URL: http://archimer.ifremer.fr/doc/1990/acte-1155.pdf
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Detection de fissure sur structure en mer en presence de salissure marine projet "Crabe" ArchiMer
Daste, S.
The "CRABE" method is a crack detection technique based on the use of low electromagnetic frequencies. This (patented) method relies on a global injection of current within the structure under inspection. The presence of a crack shall cause a disruption in the current flow, and consequently of the magnetic field off the surface in the vicinity of a defect. It is this magnetic signature which is detected by the magnetic sensor used with "CRABE". The major advantage of this process, developed by TRAVOCEAN and the LETI Division of CEA with the help of IFREMER, appears clearly: No preliminary cleaning of the welds to be inspected is required, since no contact is necessary. Similarly, it shall be possible to inspect the whole of structures to a total cost all...
Tipo: Text Palavras-chave: Offshore structures; Fouling; Underwater exploration; Steel structures; Sensors; Cracks; Detection; Unmanned vehicles; Marine technology.
Ano: 1990 URL: http://archimer.ifremer.fr/doc/1990/acte-1161.pdf
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Development of genomic probes for detection of hepatitis A virus and enteroviruses in shellfish ArchiMer
Apaire, M; Leguyader, F; Besse, B; Billaudel, S.
The development of molecular biology techniques has modified research procedures for certain viruses, particularly hepatitis A virus (HAV) and enteroviruses. Accordingly, we designed cDNA and RNA genomic probes to detect viruses in shellfish in the environment. Better sensitivity was noted with RNA than cDNA probes: only 17/83 shellfish samples were positive with HAV and enterovirus DNA probes, where as 42/83 were positive with HAV and enterovirus RNA probes.
Tipo: Text Palavras-chave: Mollusca; Enterovirus; Hepatitis A virus; Picornaviridae; RNA probes; DNA probes; Seafood; Biology; Sensors; DNA; RNA; Viruses; Detection; Marine molluscs; Shellfish.
Ano: 1992 URL: http://archimer.ifremer.fr/doc/1992/acte-1613.pdf
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Jamstec/deep tow camera system (on the manned submersible "SHINKAI 2000 vehicle") ArchiMer
Otsuka, K.
The JAMSTEC/Deep Tow Camera System conducts pre-site-surveys for the manned submersible "SHINKAI 2000". The vehicle is towed by double armored coaxial cable (RG-8/U) of 4500 m length. The color composite video signal is converted to an FM signal with central frequency of 6.15 MHz because it is very difficult to compensate completely for the transmission loss of video frequency through the coaxial cable. The data from the CTD sensors and the altimeter are displayed with date and time on the monitor screen in real time. Temperature data has proved very important in finding hydrothermal anomaly phenomena. Two years ago, our research group found an active chimney at North Fiji Basin during cooperative cruise between France and Japan. Last year, we deployed...
Tipo: Text Palavras-chave: Altimeters; Sensors; Television systems; Underwater cameras; Ocean floor; Unmanned vehicles.
Ano: 1990 URL: http://archimer.ifremer.fr/doc/1990/acte-1153.pdf
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Low-cost microprocessed instrument for evaluating soil temperature profile PAB
CRUVINEL,PAULO ESTEVÃO.
This paper describes a low-cost microprocessed instrument for in situ evaluating soil temperature profile ranging from -20.0°C to 99.9°C, and recording soil temperature data at eight depths from 2 to 128 cm. Of great importance in agriculture, soil temperature affects plant growth directly, and nutrient uptake as well as indirectly in soil water and gas flow, soil structure and nutrient availability. The developed instrument has potential applications in the soil science, when temperature monitoring is required. Results show that the instrument with its individual sensors guarantees ±0.25°C accuracy and 0.1°C resolution, making possible localized management changes within decision support systems. The instrument, based on complementary metal oxide...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Soil management equipment; Thermal properties; Microprocessors; Sensors.
Ano: 2000 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2000001100020
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Marine environmental data information referral catalogue (MEDI catalogue) OceanDocs
Tipo: Book Palavras-chave: Marine Environmemt; Marine environment; Sensors; Environmental monitoring; Environmental assessment; Environment management; Environments; Environmental surveys; Monitoring; Monitoring systems; Data collections; Data acquisition; Data transmission; Data processing; Catalogues; Marine environment; Sensors; Environmental monitoring; Monitoring; Environmental assessment; Data acquisition; Data processing; Http://aims.fao.org/aos/agrovoc/c_4610; Http://aims.fao.org/aos/agrovoc/c_28279; Http://aims.fao.org/aos/agrovoc/c_37876; Http://aims.fao.org/aos/agrovoc/c_4911; Http://aims.fao.org/aos/agrovoc/c_37751; Http://aims.fao.org/aos/agrovoc/c_37344; Http://aims.fao.org/aos/agrovoc/c_10289.
Ano: 1993 URL: http://hdl.handle.net/1834/2804
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Processing of nanomaterials in Layer-by-Layer films: Potential applications in (bio)sensing and energy storage Anais da ABC (AABC)
OLIVEIRA,DANILO A.; GASPAROTTO,LUIZ H.S.; SIQUEIRA JR,JOSÉ R..
Abstract: The study and preparation of new nanostructures involving the integration of distinct nanomaterials have been important for the development of new electrochemical devices for (bio)sensing and energy storage. Such devices envisage miniaturized or flexible electronic equipment for emerging technologies, including adaptive displays, artificial skin and wearable devices. In this way, the processing of specific nanomaterials may lead to nanostructures with properties that permit the fabrication of multifunctional devices for different applications, including sensors and supercapacitors. Therefore, the use of a suitable method to manipulate nanomaterials in a same nanostructure is important for this purpose. Thus, we expect that this review provides...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Nanomaterials; Layer-by-Layer technique; Nanostructures; Electrochemical devices; Sensors; Supercapacitors.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652019000300301
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Sistema de adquisición de datos meteorológicos en tiempo real. Colegio de Postgraduados
Guzmán Luna, Ricardo.
El objetivo de este trabajo fue desarrollar un sistema de adquisición de datos meteorológicos en tiempo real utilizando un controlador lógico programable (PLC) como una alternativa dentro de las estaciones meteorológicas comerciales. Para sensar la: temperatura del aire, humedad relativa, radiación solar, precipitación, velocidad y dirección del viento, se usaron sensores comerciales, durante el periodo comprendido entre el 23 de Mayo al 3 de Junio de 2013, para probar la estación, en la estación meteorológica del Colegio de Postgraduados Campus Montecillo. El sistema se compone de un PLC (modelo CX1020, marca Beckhoff), una Laptop donde se instaló una aplicación de monitoreo en tiempo real que se desarrolló en Visual Basic 2010 Express y la base de datos...
Palavras-chave: Estaciones automáticas; Meteorología; Sensores; Tiempo real; Automatic stations; Meteorology; Sensors; Real time; Hidrociencias; Maestría.
Ano: 2013 URL: http://hdl.handle.net/10521/2156
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Spatial variability of apparent electrical conductivity and soil properties in a coffee production field REA
Valente,Domingos S. M.; Queiroz,Daniel M. de; Pinto,Francisco de A. de C.; Santos,Fábio L.; Santos,Nerilson T..
Precision agriculture based on the physical and chemical properties of soil requires dense sampling to determine the spatial variability of these properties. This dense sampling is often expensive and time-consuming. One technique used to reduce sample numbers involves defining management zones based on information collected in the field. Some researchers have demonstrated the importance of soil electrical variables in defining management zones. The objective of this study was to evaluate the relationship between the spatial variability of the apparent electrical conductivity and the soil properties in the coffee production of mountain regions. Spatial variability maps were generated using a geostatistical method. Based on the spatial variability results,...
Tipo: Info:eu-repo/semantics/other Palavras-chave: Geostatistical; Management zone; Sensors.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162014000600017
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The relationship between apparent soil electrical conductivity and soil properties Rev. Ciênc. Agron.
Valente,Domingos Sárvio Magalhães; Queiroz,Daniel Marçal de; Pinto,Francisco de Assis de Carvalho; Santos,Nerilson Terra; Santos,Fábio Lúcio.
Precision agriculture that is based on the physical and chemical properties of soil requires a dense sampling to evaluate spatial variability in the field. This dense sampling is often expensive and time consuming. One technique to reduce the number of samples is to define management zones based on information that is collected in the field. Some researchers have demonstrated the importance of the electrical properties of soil in defining management zones. Thus, the objective of this study was to evaluate the relationship between the apparent soil electrical conductivity and soil properties in mountainous areas of coffee production. The electrical conductivity of soil was evaluated at soil depths ranging from 0.00-0.20 m (EC20) and 0.00-0.40 m (EC40) using...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Precision agriculture; Management zone; Sensors.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902012000400009
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