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| Registros recuperados: 11 | |
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| Machado,Thiago M.; Lanças,Kléber P.; Oliveira Junior,Mauro B. de; Artioli,José A.; Marasca,Indiamara. |
| ABSTRACT The power consumption and load capacity of agricultural machines have grown and the effects of pressure on the soil by tires have been still little investigated. In concern with sustainable development, the relationship machine-tire-soil must be in balance to give more consistency on the best use of tires for a given load. This study aimed to evaluate four tires of two constructive types, the bias belted tires and radial tires, both with respective rim diameters of 22.5 and 26.5 inches with variables measuring the footprint, elastic deformation, sinkage and resistance to penetration. A hydraulic press with an attachment shaft for tire mounting and a box of soil in which the tire has been imposed on a load of 53.00 kN using nominal pressures... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Compaction; Footprint; Pressure; Elastic deformation; Sinkage. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162015000500886 |
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| Wong, Annie P. S.; Wijffels, Susan E.; Riser, Stephen C.; Pouliquen, Sylvie; Hosoda, Shigeki; Roemmich, Dean; Gilson, John; Johnson, Gregory C.; Martini, Kim; Murphy, David J.; Scanderbeg, Megan; Bhaskar, T. V. S. Udaya; Buck, Justin J. H.; Merceur, Frederic; Carval, Thierry; Maze, Guillaume; Cabanes, Cécile; André, Xavier; Poffa, Noe; Yashayaev, Igor; Barker, Paul M.; Guinehut, Stéphanie; Belbéoch, Mathieu; Ignaszewski, Mark; Baringer, Molly O'Neil; Schmid, Claudia; Lyman, John M.; Mctaggart, Kristene E.; Purkey, Sarah G.; Zilberman, Nathalie; Alkire, Matthew B.; Swift, Dana; Owens, W. Brechner; Jayne, Steven R.; Hersh, Cora; Robbins, Pelle; West-mack, Deb; Bahr, Frank; Yoshida, Sachiko; Sutton, Philip J. H.; Cancouët, Romain; Coatanoan, Christine; Dobbler, Delphine; Juan, Andrea Garcia; Gourrion, Jerome; Kolodziejczyk, Nicolas; Bernard, Vincent; Bourlès, Bernard; Claustre, Hervé; D'Ortenzio, Fabrizio; Le Reste, Serge; Le Traon, Pierre-yves; Rannou, Jean Philippe; Saout-grit, Carole; Speich, Sabrina; Thierry, Virginie; Verbrugge, Nathalie; Angel-benavides, Ingrid M.; Klein, Birgit; Notarstefano, Giulio; Poulain, Pierre-marie; Vélez-belchí, Pedro; Suga, Toshio; Ando, Kentaro; Iwasaska, Naoto; Kobayashi, Taiyo; Masuda, Shuhei; Oka, Eitarou; Sato, Kanako; Nakamura, Tomoaki; Sato, Katsunari; Takatsuki, Yasushi; Yoshida, Takashi; Cowley, Rebecca; Lovell, Jenny L.; Oke, Peter R.; Van Wijk, Esmee M.; Carse, Fiona; Donnelly, Matthew; Gould, W. John; Gowers, Katie; King, Brian A.; Loch, Stephen G.; Mowat, Mary; Turton, Jon; Rama Rao, E. Pattabhi; Ravichandran, M.; Freeland, Howard J.; Gaboury, Isabelle; Gilbert, Denis; Greenan, Blair J. W.; Ouellet, Mathieu; Ross, Tetjana; Tran, Anh; Dong, Mingmei; Liu, Zenghong; Xu, Jianping; Kang, Kiryong; Jo, Hyeongjun; Kim, Sung-dae; Park, Hyuk-min. |
| In the past two decades, the Argo Program has collected, processed, and distributed over two million vertical profiles of temperature and salinity from the upper two kilometers of the global ocean. A similar number of subsurface velocity observations near 1,000 dbar have also been collected. This paper recounts the history of the global Argo Program, from its aspiration arising out of the World Ocean Circulation Experiment, to the development and implementation of its instrumentation and telecommunication systems, and the various technical problems encountered. We describe the Argo data system and its quality control procedures, and the gradual changes in the vertical resolution and spatial coverage of Argo data from 1999 to 2019. The accuracies of the... |
| Tipo: Text |
Palavras-chave: Global; Ocean; Pressure; Temperature; Salinity; Argo; Profiling; Floats. |
| Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00652/76377/77385.pdf |
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| Perigó Arnaud, E.; Alcaide Orpín, J.; Montalvo Estévez, J.F.; Izquierdo, M.; Rivas, L.; Cobas Gómez, S.. |
| Se realizó un diagnóstico de los principales problemas ambientales de la zona marino costera situada en la playa de Baracoa, perteneciente al Municipio Bauta, provincia La Habana, determinándose que las principales presiones antropogénicas que han alterado la calidad del ambiente químico-físico de los ecosistemas costeros como la laguna El Doctor, los estuarios de los ríos Santa Ana y Baracoa, así como el litoral donde se ubican las playas Holliwood y Habana y se relacionan con los vertimientos de residuales de las actividades domésticas, comerciales, recreativas y docentes que han contaminado los ecosistemas con nutrientes, materia orgánica y microorganismos entéricos que han hecho estos ecosistemas inapropiados para su empleo en las actividades... |
| Tipo: Preprint |
Palavras-chave: Management; Eutrophication; Pressure; Eutrophication; Management; Pressure; Http://aims.fao.org/aos/agrovoc/c_2734; Http://aims.fao.org/aos/agrovoc/c_16086; Http://aims.fao.org/aos/agrovoc/c_6174. |
| Ano: 2010 |
URL: http://hdl.handle.net/1834/3598 |
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| Biaggioni, Marco Antônio Martin; UNESP - Botucatu; Lopes, Ana Beatriz de Castro; UNESP - Botucatu; Jasper, Samir Paulo; UNESP - Botucatu; Berto, Dirlei Antonio; UNESP - Botucatu; Gonçalves, Elisa Vidal; UNESP-Botucatu. |
| Visando estabelecer a contribuição dos parâmetros físicos na qualidade final da silagem de grãos úmidos de milho, foi conduzido experimento, no interior de câmara climatizada, simulando cinco condições de temperatura ambiente (5°C 24h-1 por dia; 25°C 24h-1 por dia; 40°C 24h-1 por dia; 20°C 16h-1 por dia + 5°C 8h-1 por dia; 30°C 16h-1 por dia + 20°C 8h-1 por dia) e duas condições de pressão no interior dos tambores de armazenagem (com e sem pressão interna). Para se determinar os efeitos sobre o grau de disponibilidade do amido na silagem pronta, procedeu-se a análises para avaliar a qualidade final da silagem (teor de umidade, pH, ácidos orgânicos, amido total e granulometria). O delineamento... |
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Palavras-chave: 5.01.00.00-9 Agronomia silagem; Qualidade; Temperatura; Pressão silage; Quality; Temperature; Pressure. |
| Ano: 2009 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/325 |
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| Yamamoto,K.; Matsubara,M.; Kawasaki,S.; Bari,M.L.; Kawamoto,S.. |
| Escherichia coli, as a model microorganism, was treated in phosphate-buffered saline under high hydrostatic pressure between 100 and 300 MPa, and the inactivation dynamics was investigated from the viewpoint of predictive microbiology. Inactivation data were curve fitted by typical predictive models: logistic, Gompertz and Weibull functions. Weibull function described the inactivation curve the best. Two parameters of Weibull function were calculated for each holding pressure and their dependence on holding pressure was obtained by interpolation. With the interpolated parameters, inactivation curves were simulated and compared with the experimental data sets. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Predictive microbiology; Pressure; Escherichia coli; Inactivation; Model. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2005000800014 |
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| Heindl,P.; Fernández García,A.; Büttner,M.; Voigt,H.; Butz,P.; Tauscher,B.; Pfaff,E.. |
| Crude brain homogenates of terminally diseased hamsters infected with the 263 K strain of scrapie (PrP Sc) were heated and/or pressurized at 800 MPa at 60ºC for different times (a few seconds or 5, 30, 120 min) in phosphate-buffered saline (PBS) of different pH and concentration. Prion proteins were analyzed on immunoblots for their proteinase K (PK) resistance, and in hamster bioassays for their infectivity. Samples pressurized under initially neutral conditions and containing native PrP Sc were negative on immunoblots after PK treatment, and a 6-7 log reduction of infectious units per gram was found when the samples were pressurized in PBS of pH 7.4 for 2 h. A pressure-induced change in the protein conformation of native PrP Sc may lead to less PK... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Native prion protein; Pressure; Inactivation; PH; Proteinase K sensitivity; Prion conformation. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2005000800010 |
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| Kunugi,S.; Kameyama,K.; Tada,T.; Tanaka,N.; Shibayama,M.; Akashi,M.. |
| Pressure-driven and temperature-driven transitions of two thermoresponsive polymers, poly(N-isopropylacrylamide) (pNIPAM) and poly(N-vinylisobutyramide) (pNVIBA)), in both a soluble linear polymer form and a cross-linked hydro-gel form, were examined by a dynamic light-scattering method and direct microscopic observation, respectively. Their behavior was compared with that of protein systems. Changes in some characteristic parameters in the time-intensity correlation functions of dynamic light-scattering measurement of aqueous solutions of pNIPAM at various pressures and temperatures showed no essential differences during temperature and pressure scanning and, as a whole, the motions of polymers in aqueous solutions were similar in two types of transitions... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Pressure; Temperature; Denaturation; Transition; Proteins; Thermoresponsive polymers; Polymer gel. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2005000800011 |
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| Registros recuperados: 11 | |
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