SABIIA - Sistema Aberto e Integrado de Informação em Agricultura (Sabiia)

Lazerges, Mathieu; Perrot, Hubert; Rabehagasoa, Niriniony; Antoine, Elisabeth; Compere, Chantal.

Supramolecular polymerizations of 45- and 70- base DNAs on the surface of an in-situ time-resolved 27 MHz quartz crystal microbalance biosensor.

Tipo: Text

Palavras-chave: Sensor; Design; Kinetics; Immobilization; Hybridization.

Ano: 2005

URL: http://archimer.ifremer.fr/doc/2005/publication-1710.pdf

Adaptação de um pulverizador de tração humana para aplicação localizada de herbicidas

Planta Daninha

Viliotti,C.A.; Vieira,L.B.; Ferreira,L.R.; Dias,G.P.; Rinaldi,P.C.N..

Objetivou-se com este trabalho adaptar um pulverizador de tração humana para aplicação localizada de herbicidas. Para o desenvolvimento do circuito eletrônico, foi elaborado um programa computacional em linguagem Assembly, com informações sobre a variação da resistência elétrica no LDR (Resistor Dependente de Luz) referente à radiação global incidente e refletida para quatro tipos de superfícies diferentes (plantas dicotiledôneas, plantas monocotiledôneas, palhada de trigo e solo). Concluiu-se que é possível e economicamente viável a utilização do sensor LDR para detecção de plantas daninhas.

Advancing Observation of Ocean Biogeochemistry, Biology, and Ecosystems With Cost-Effective in situ Sensing Technologies

Palavras-chave: Agricultura de precisão; Planta daninha; Sensor.

Ano: 2009

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582009000100026

Agricultura de precisão: tecnologias para o algodoeiro.

Wang, Zhaohui Aleck; Moustahfid, Hassan; Mueller, Amy V.; Michel, Anna Pm; Mowlem, Matthew; Glazer, Brian T.; Mooney, T. Aran; Michaels, William; Mcquillan, Jonathan S.; Robidart, Julie C.; Churchill, James; Sourisseau, Marc; Daniel, Anne; Schaap, Allison; Monk, Sam; Friedman, Kim; Brehmer, Patrice.

Advancing our understanding of ocean biogeochemistry, biology, and ecosystems relies on the ability to make observations both in the ocean and at the critical boundaries between the ocean and other earth systems at relevant spatial and temporal scales. After decades of advancement in ocean observing technologies, one of the key remaining challenges is how to cost-effectively make measurements at the increased resolution necessary for illuminating complex system processes and rapidly evolving changes. In recent years, biogeochemical in situ sensors have been emerging that are threefold or more lower in cost than established technologies; the cost reduction for many biological in situ sensors has also been significant, although the absolute costs are still...

Tipo: Text

Palavras-chave: In situ; Sensor; OceanObs; Ocean technology; EOVs; Biogeochemistry; Biology; Cost effective.

Ano: 2019

URL: https://archimer.ifremer.fr/doc/00514/62567/66921.pdf

Análise comparativa de sensores de velocidade de deslocamento em função da superfície

BRANDAO, Z. N.; RESENDE, A. V. de; GREGO, C. R.; SPERANZA, E. A..

Tipo: Parte de livro

Palavras-chave: Monitoramento; Sensor; Agricultura de Precisão; Produtividade; Tecnologia Agrícola; Solo.

Ano: 2020

URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123583

REA

Molin,José P.; Souza,Adriano B. M.; Fontana,Gustavo; Nagumo,Gustavo K..

Um dos fatores que influencia diretamente no desempenho de sistemas mecanizados é a velocidade de deslocamento pela sua importância no planejamento e na execução das operações agrícolas. O objetivo deste trabalho foi avaliar a acurácia de quatro sensores de velocidade, em condições de superfície asfáltica, solo com cobertura vegetal, aclives e declives, acelerações e desacelerações, submetidos a velocidades representativas para aplicações agrícolas. Foram ensaiados dois modelos comerciais de sensores de radar, um sensor de GPS e um sensor óptico. Foram identificadas diferenças significativas para as situações de solo com cobertura vegetal, acelerações e desacelerações. Para a superfície asfáltica, em situação de velocidade constante, os sensores avaliados...

Calibration of a capacitance probe in a Paleudult

Palavras-chave: Sensor; GPS; Radar.

Ano: 2005

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162005000300023

Scientia Agricola

Silva,Cláudio Ricardo da; Andrade Júnior,Aderson Soares de; Alves Júnior,José; Souza,Antonio Barros de; Melo,Francisco de Brito; Coelho Filho,Maurício Antonio.

The use of capacitance sensors is one of the methods used to quantitatively measure soil water contents (theta, m³ m-3). Sensors provide readings at desired depths and time intervals. A capacitance probe (Diviner 2000) was calibrated for a Rhodic Paleudult from the Piaui State, Brazil. Six access tubes were installed in a 5 × 2 m grid arrangement. Three moisture levels (saturated, moist and dry) were used in two replications. Probe readings and soil samplings to determine theta were made at 0.1 m depth intervals down to a depth of 1.0 m. A power calibration equation was developed for each depth as well as for the entire soil profile (Root Mean Square Error = 0.014, R² = 0.93) for a theta range of 0.068 to 0.264 m³m-3. A separate calibration for each depth...

Tipo: Info:eu-repo/semantics/report

Palavras-chave: FDR probe; Sensor; Irrigation; Soil water content.

Ano: 2007

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162007000600012

Comparative between different parameters under automate drip irrigation for cucumber

CIGR Journal

Khattab, Yosria Kamal.

Abstract: Automate drip irrigation in greenhouse was conducted at Elhssen Agriculture Authriuts, Giza governorate, Egypt. The aim of this researcher is to use the new Laser Leaf Control Unit (LLCU) as a tool to operate the automate drip irrigation system in greenhouse. Comparative study between Laser Beam Transmit (LBT) build in the (LLCU), different temperature (dt) and Soil Moisture Content (SMC) were carried for irrigated cucumber. Three instruments used; 1) Laser Leaf Control Unit (LLCU); 2) Infrared Thermometer (IR) used to measure canopy temperature around plant leaf (Tc) and air temperature (Ta) to estimate dtc °C; 3) Soil Moisture Meter (SMM) to measure Soil Moisture Content (SMC). The result exhibited that there is a relationship between the LBT,...

Continuous monitoring of interstitial glucose in healthy dogs

Palavras-chave: National Institute of Laser Enhanced Science; Cairo University Laser; Sensor; Water; Leaves; Automate; Irrigation; Wavelength; Cucumber.

Ano: 2019

URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/4840

MV&Z

Ferreira, Karina Casagrande; Jericó, Márcia Marques; de Pietro, Achille Marcelo; dos Santos, Elídia Zotelli; Sewastjanow, Liliam; Leite, Talita; Baptista, Juliana.

The maintenance of body glucose in proper levels is of paramountimportance to the homeostasis control, offering a fundamentalenergetic substrate for the proper organic performance. For thepurposes of measuring body glucose levels, there are available portableand laboratory assessment techniques. Therefore, aiming at futureclinical trials on body glucose variation in dogs, it had the purpose ofobserving the feasibility of a continuous interstitial glucose monitoringsystem named CGMS® (Continuous Glucose Monitoring System,Guardian Real-Time System/Medtronic/U.S.A.). Eight clinically healthydogs composed the study group and all of them presented the highestinterstitial glucose values during the contention and obtaining processof venous blood samples for the...

Design and development of the architecture of an agricultural mobile robot

Palavras-chave: Blood glucose; Glucometer; Venous; Sensor; Calibration Glicemia; Glicosímetro; Venosa; Sensor; Calibração.

Ano: 2016

URL: http://www.revistamvez-crmvsp.com.br/index.php/recmvz/article/view/28822

REA

Tabile,Rubens A; Godoy,Eduardo P; Pereira,Robson R. D; Tangerino,Giovana T; Porto,Arthur J. V; Inamasu,Ricardo Y.

Parameters such as tolerance, scale and agility utilized in data sampling for using in Precision Agriculture required an expressive number of researches and development of techniques and instruments for automation. It is highlighted the employment of methodologies in remote sensing used in coupled to a Geographic Information System (GIS), adapted or developed for agricultural use. Aiming this, the application of Agricultural Mobile Robots is a strong tendency, mainly in the European Union, the USA and Japan. In Brazil, researches are necessary for the development of robotics platforms, serving as a basis for semi-autonomous and autonomous navigation systems. The aim of this work is to describe the project of an experimental platform for data acquisition in...

Detection of polycyclic aromatic hydrocarbon (PAH) compounds in artificial sea-water using surface-enhanced Raman scattering (SERS)

Palavras-chave: Precision agricultural; CAD; CAE; ISOBUS; Robotic; Sensor.

Ano: 2011

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162011000100013

Peron, Olivier; Rinnert, Emmanuel; Lehaitre, Michel; Crassous, Philippe; Compere, Chantal.

This paper reports an accurate synthesis of surface-enhanced Raman scattering (SERS) active substrates, based on gold colloidal monolayer, suitable for in situ environmental analysis. Quartz substrates were functionalized by silanization with (3-mercaptopropyl)trimethoxysilane (MPMS) or (3-aminopropyl)trimethoxysilane (APTMS) and they subsequently reacted with colloidal suspension of gold metal nanoparticles: respectively, the functional groups SH and NH2 bound gold nanoparticles. Gold nanoparticles were prepared by the chemical reduction of HAuCl4 using sodium tricitrate and immobilized onto silanized quartz substrates. Active substrate surface morphology was characterized with scanning electron microscopy (SEM) measurements and gold nanoparticles...

Tipo: Text

Palavras-chave: Sensor; Sea water; PAH detection; SERS; Silanization; Gold nanoparticles.

Ano: 2009

URL: http://archimer.ifremer.fr/doc/2009/publication-6616.pdf

DISTRIBUTION OF MAIZE SEED IN A SEEDING LINE PROTOTYPE USING MICROCONTROLLED DATA ACQUISITION SYSTEMS

REA

Reis,Elton F. dos; Borges Neto,Antônio C.; Couto,Ródney F..

ABSTRACT: The aim of this study was evaluate the longitudinal distribution of maize seeds using a seeding line prototype, whit a microcontroller data acquisition system, at different speeds and types of horizontal feeder discs. Initially it was constructed a prototype simulator of seeding line, in the laboratory, and mounted two systems of microcontroller data acquisitions with infrared sensors for maize seeds counting. A test was conducted in a completely randomized design in split plots with factorial scheme of treatments 5 x 2 x 2, being the parcel two types of microcontroller data acquisition systems (infrared sensors in parallel and an diffuse infrared sensor), the factors were two feeder discs of maize seeds (inclined and normal) and five sowing...

Empirical Model of a Vertisol Evaporation as Tool for Management of Soil Practicability using Portable Lysimetric Station under Arid Land Context

Palavras-chave: Sensor; Microcontroller; Horizontal disc.

Ano: 2017

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162017000601148

CIGR Journal

El Aissaoui, Abdellah; Yassine, Almasmoudi.

Soil compaction caused by traffics is commonly considered as one of the major’s problems in agriculture. Moisture content have a significant effect on amplifying soil compaction. This study aims to approach evaporation trend of a vertisol (40.47% clay, 39.30% loam and 20.23% sand) having an organic matter content of 1.5% in order to manage timing of its plasticity as a determinant factor inducing compaction created by the traffic of machines. A portable lysimetric measurement system was developed to evaluate soil evaporation trend. An empirical soil evaporation model was developed using three measurement campaigns according to different temperature and irradiance behaviors. Soil moisture content was evaluated with two sensors using conductivity and...

Intégration dans un SIG de données issues de capteurs satellites en comparaison de données in situ pour le suivi de la qualité des eaux côtières

Palavras-chave: Evaporation; Vertisol; Practicability; Compaction; Lysimeter; Plasticity state; Moisture Content; Sensor.

Ano: 2023

URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/6153

Lozach, Loic; Gohin, Francis; Oger-jeanneret, Helene.

Tipo: Text

Palavras-chave: Geographical Information System; Remote sensing; Satellite data; Sensor; Water quality monitoring; Sea surfacte temperature; Chlorphyll; Coastal water.

Ano: 2006

URL: http://archimer.ifremer.fr/doc/2006/rapport-2403.pdf

Méthodes électrochimiques pour l'analyse in situ de composés bioactifs en milieu océanique

Metodologia fototémica fotopiroelétrica para a determinação do teor de palha em café torrado e moído.

Lacombe, Marielle.

The implementation of in situ autonomous observatories for biogeochemicalstudies in the open ocean water column and in deep-sea chemosynthetic environments is crucial for the understanding of these ecosystems. We focussed this study on silicate and sulphide, two key compounds of the marine food chain. A voltammetric method for sulphide measurements on silver electrode is presented, and a new method for quantitative determination based on the solubility difference between silver chloride and silver sulphide is proposed. A completely reagentless method for silicate measurements is developed using molybdate and protons produced during molybdenum oxidation. These analyticaldevelopments allowed us to validate a submersible potentiostat, first step toward a new...

Tipo: Text

Palavras-chave: Water masses; Drake Passage; Sensor; Electrochemistry; Sulphide; Silicate; Deep sea chemosynthetic environments; Open ocean; In situ autonomous observatories; Masses d'eau; Passage de Drake; Capteur; Voltammétrie; Électrochimie; Sulfure; Acide silicique; Écosystèmes profonds; Océan ouvert; Observatoires in situ autonomes.

Ano: 2007

URL: http://archimer.ifremer.fr/doc/2007/these-3921.pdf

MELO, W. L. de B.; YASUDA, M. T.; CRUVINEL, P. E..

Trata-se de uma metodologia baseada na técnica fototérmica fotopiroelétrica para determinar o percentual de palha torrada e moída adicionada ao café torrado e moído.

Tipo: Folhetos

Palavras-chave: Onda térmica; Sensor; Difusão térmica.

Ano: 2001

URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/29195

Prediction of faecal contamination in shellfish production areas: Interest and limits of the salinity parameter

Le Saux, Jean-claude; Le Vaillant, Gael; Guillermou, Ghislain; Vilbas, Jean-valere; Deter, Julie; Delyon, Bernard; Le Guyader, Soizick; Pommepuy, Monique.

Estuarine areas are sensitive to rapid and punctual contamination linked to heavy rainfall inducing rapid fresh water input. Thus, the increase of seawater contamination may be linked to a salinity decrease. The objective of this study was to measure salinity variation as a proxy to evaluate the risk of faecal contamination. Salinity sensors were set up on shellfish beds in Daoulas estuary (Bay of Brest) and monitored every 10 min over a four year period. Precipitation and river flows were also recorded. Moreover E. coli concentrations and salinity were measured in the estuarine surface water during different hydrodynamic conditions and seasons. The results indicated a significant relationship between E. coli concentration and salinity in the estuary....

Tipo: Text

Palavras-chave: Salinity; Sensor; E. coli; Shellfish; Prediction; Alert; Daoulas estuary.

Ano: 2009

URL: http://archimer.ifremer.fr/doc/00066/17751/15273.pdf

Programa computacional para aquisição de dados para avaliação de máquinas agrícolas

AGRIAMBI

Garcia,Ricardo F.; Queiroz,Daniel M. de; Miyagaki,Olímpio H.; Pinto,Francisco de A. de C..

A aquisição de dados é um dos principais problemas enfrentados por engenheiros e pesquisadores responsáveis pela realização de testes de máquinas agrícolas, devido à alta complexidade dessas máquinas. Para estabelecer os parâmetros relacionados ao seu desempenho, uma série de variáveis precisam ser monitoradas. Diante disso, o objetivo deste trabalho foi desenvolver um programa de computador para aquisição automática de dados a serem utilizados na avaliação de máquinas agrícolas. O sistema foi implementado utilizando-se o programa de computador LabVIEW versão 6i e equipamentos da "National Instruments". Desenvolveram-se Instrumentos Virtuais (VI) para os seguintes tipos de sensores: célula de carga, torquímetro, sensor de rotação tipo sensor indutivo e...

Sensing Polymer/Paracetamol Interaction with an Independent Component Analysis-Based SERS-MIP Nanosensor

Palavras-chave: Automação; LabVIEW; Mecanização; Sensor.

Ano: 2003

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662003000200032

Sensor descartável utilizado para informação da maturação.

Decorbie, N.; Tijunelyte, I.; Gam-derouich, S.; Solard, J.; Lamouri, A.; Decorse, P.; Felidj, N.; Gauchotte-lindsay, C.; Rinnert, Emmanuel; Mangeney, C.; Lidgi-guigui, N..

In this article, we propose a new strategy to build a sensor for easy handling and rapid analysis on-site. Our sensor is based on the combination of surface-enhanced Raman spectroscopy (SERS) and molecularly imprinted polymers (MIPs). SERS provides a strong sensitivity for the detection of trace molecules while MIPs offer a highly selective and specific recognition platform. The research presented here focuses on the detection of the interaction between a robust ultra-thin layer of MIPs and of paracetamol, the targeted molecule. This drug is an environmental emerging pollutant, i.e., a molecule whose presence and significance have not yet been elucidated, which gives rise to health and environmental concerns. The results are a combined analysis of the SERS...

Tipo: Text

Palavras-chave: Sensor; SERS; Molecularly imprinted polymers; Emerging pollutant; Paracetamol; Independent component analysis.

Ano: 2020

URL: https://archimer.ifremer.fr/doc/00628/73962/73386.pdf

Sensores de diedro para a medida do potencial matricial da água no solo.

HERRMANN JUNIOR, P..

Tipo: Artigo na mídia

Palavras-chave: Sensor.

Ano: 2008

URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/31693