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排序方式: 共有2047条查询结果,搜索用时 31 毫秒
911.
912.
Jose Luis Valin Rivera J.M. Monteiro H.M. Lopes M.A.P. Vaz Francisco Palacios Edison Gonalves Gilberto Garcia del Pino Jorge Ricardo Prez 《Optics and Lasers in Engineering》2009,47(11):1139-1144
The purpose of this article is to study the application of the holographic interferometry techniques in the structural analysis of submarine environment. These techniques are widely used today, with applications in many areas. Nevertheless, its application in submarine environments presents some challenges. The application of two techniques, electronic speckle pattern interferometry (ESPI) and digital holography, comparison of advantages and disadvantages of each of them is presented. A brief study is done on the influence of water properties and the optical effects due to suspended particles as well as possible solutions to minimize these problems. 相似文献
913.
Vinicius Cifú Lopes 《Mathematical Logic Quarterly》2013,59(3):219-229
We introduce reduced products in continuous logic, and provide ways to establish satisfaction in the reduced product based on the satisfaction in its fibers, and conversely, on the lines that Horn and Chang did for reduced products in classical logic. We also consider a definition of a sheaf of metric structures, endow its stalks with a metric prestructure, and determine what filters can be used so that a collection of reduced products of arbitrary structures forms a sheaf on a given index space. 相似文献
914.
Helena Ljusberg-Wahren 《Journal of Dispersion Science and Technology》2013,34(4):413-421
The thermal behavior of aqueous mixtures of monoglyceride and cholate has been examined by differential scanning calorimetry. The temperature of the maximum heat capacity for the a-gel to melt transition decreases monotonically with increasing cholate content. The existence of a large liquid region in the ternary phase diagram monoglyceride-cholate-water at 50°C is demonstrated. 相似文献
915.
Rodrigo Leal de Paiva Carvalho Ernesto Cesar Pinto Leal‐Junior Maria Carla Petrellis Rodrigo Labat Marcos Maria Helena Catelli de Carvalho Gilberto De Nucci Rodrigo Alvaro Brandão Lopes‐Martins 《Photochemistry and photobiology》2013,89(2):508-512
Muscle injuries represent ca 30% of sports injuries and excessive stretching of muscle causes more than 90% of injuries. Currently the most used treatments are nonsteroidal anti‐inflammatory drugs (NSAIDs), however, in last years, low‐level laser therapy (LLLT) is becoming an interesting therapeutic modality. The aim of this study was to evaluate the effect of single and combined therapies (LLLT, topical application of diclofenac and intramuscular diclofenac) on functional and biochemical aspects in an experimental model of controlled muscle strain in rats. Muscle strain was induced by overloading tibialis anterior muscle of rats. Injured groups received either no treatment, or a single treatment with topical or intramuscular diclofenac (TD and ID), or LLLT (3 J, 810 nm, 100 mW) 1 h after injury. Walking track analysis was the functional outcome and biochemical analyses included mRNA expression of COX‐1 and COX‐2 and blood levels of prostaglandin E2 (PGE2). All treatments significantly decreased COX‐1 and COX‐2 gene expression compared with injury group (P < 0.05). However, LLLT showed better effects than TD and ID regarding PGE2 levels and walking track analysis (P < 0.05). We can conclude that LLLT has more efficacy than topical and intramuscular diclofenac in treatment of muscle strain injury in acute stage. 相似文献
916.
João Lopes Dias 《Journal of Differential Equations》2008,245(2):468-489
If a real-analytic flow on the multidimensional torus close enough to linear has a unique rotation vector which satisfies an arithmetical condition Y, then it is analytically conjugate to linear. We show this by proving that the orbit under renormalization of a constant Y-vector field attracts all nearby orbits with the same rotation vector. 相似文献
917.
Norberto Garcia‐Cairasco Miguel Moyses‐Neto Flavio DelVecchio Jos A. C. Oliveira Francisco L. dosSantos Olagide W. Castro Gabriel M. Arisi Mrcio Dantas Ruither O. G. Carolino Joaquim Coutinho‐Netto Andre L. A. Dagostin Marcelo C. A. Rodrigues Ricardo M. Leo Samir A. P. Quintiliano Luiz F. Silva Leonardo Gobbo‐Neto Norberto P. Lopes 《Angewandte Chemie (Weinheim an der Bergstrasse, Germany)》2013,125(49):12981-12981
918.
919.
Marcelo Kobelnik Douglas Lopes Cassimiro Diógenes dos Santos Dias Clóvis Augusto Ribeiro Marisa Spirandeli Crespi 《Journal of Thermal Analysis and Calorimetry》2012,108(3):1281-1286
The ara?á is a well-known fruit, which belongs to the Myrtaceae family, Psidium cattleianum Sabine species, frequently found in the southern region of Brazil. The extraction of ara?a oil was carried out from seeds, and the fatty acid profile of this oil indicates the predominant presence of linoleic acid (81.38%). Thermogravimetry, derivative thermogravimetry, and differential scanning calorimetry (DSC) were used to characterize this oil. In addition, this oil was evaluated by DSC from 25 to ?60?°C, where the crystallization behavior was verified. Details concerning thermal decomposition as well as data of kinetic parameters of these stages have been described here. The kinetic behavior of the thermal decomposition was evaluated from several heating rates with mass samples of 5 and 20?mg in open crucibles under nitrogen and synthetic air atmospheres. 相似文献
920.
M. C. da Rocha L. M. da Silva C. R. Appoloni O. Portezan Filho F. Lopes F. L. Melquíades E. A. dos Santos A. O. dos Santos A. C. Moreira W. E. Ptker E. de Almeida C. Q. Tannous R. Kuramoto F. H. de M. Cavalcante P. F. Barbieri A. F. Caleffi B. T. Carbonari G. Carbonari 《Radiation Physics and Chemistry》2001,61(3-6):567-569
Samples of concrete for popular habitation (0.1×0.03×0.1 m) and cellular concrete (0.1×0.05×0.1 m) were submitted to water vertical ascending infiltration. The moisture content spatial and temporal evolution of each sample it was monitored in three halfway positions in a same horizontal line, applying the gamma rays transmission method. The data were taken with a 137Cs (3.7×1010 Bq, 0662 MeV) source, Nal (Tl) of 2×2″ detector coupled to gamma ray spectrometry standard electronic with multichannel analyzer and a micrometric table. For the popular habitation concrete, there was a clear correlation between wetting profiles and concrete strength. The cellular concrete showed a wetting profile compatible to its greater porosity. 相似文献