Academic literature on the topic 'String rios'
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Journal articles on the topic "String rios"
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Brocaneli, Pérola Felipette, and Monica Machado Stuermer. "Renaturalização de rios e córregos no município de São Paulo DOI: 10.5585/exacta.v6i1.799." Exacta 6, no. 1 (February 10, 2009): 147–56. http://dx.doi.org/10.5585/exactaep.v6i1.799.
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A cidade de São Paulo tem grande parte de suas áreas úmidas drenadas e aterradas. A ocupação das várzeas traz diversos problemas para o município, comprometendo a paisagem natural dos rios e córregos. Os problemas abrangem desde a interrupção dos processos ecossistêmicos até questões de drenagem superficial. A reabertura de alguns trechos dos rios e córregos do município talvez contribua para a conscientização ambiental dos paulistanos, principalmente a respeito da localização dos rios e da péssima condição das águas. A abertura dos canais como solução para o retardo do escoamento das águas superficiais tem sido avaliada como menos dispendiosa do que a construção e manutenção de piscinões. Este pode ser o início de um processo de valorização das áreas úmidas do município de São Paulo, mesmo que de maneira indireta.
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VACELET, JEAN. "Carnivorous sponges (Porifera, Cladorhizidae) from the deep South Pacific (New Caledonia) with the description of three new species of the genus Abyssocladia and remarks on genus Cercicladia." Zootaxa 4767, no. 2 (April 24, 2020): 257–76. http://dx.doi.org/10.11646/zootaxa.4767.2.3.
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Three new species of carnivorous sponges of the genus Abyssocladia (Demospongiae, Cladorhizidae), A. kanaconi, A. microstrongylata and A. mucronata, are described from the bathyal zone of the Tropical Southwestern Pacific, south of New Caledonia. They were collected in 2016 and 2019 during the KANACONO and KANADEEP 2 expeditions of the Tropical Deep-Sea Benthos program of the French Museum National d’Histoire Naturelle. A new record is reported for the cladorhizid Cercicladia australis Rios, Kelly & Vacelet, 2011, and the spicules of the holotype of the type species of Abyssocladia, A. bruuni Lévi, 1964 are illustrated.
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Elsayed, M. A. "A Novel Approach to Dynamic Representation of Drill Strings in Test Rigs." Journal of Energy Resources Technology 129, no. 4 (May 7, 2007): 281–88. http://dx.doi.org/10.1115/1.2790979.
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Drill strings are used in oil and gas production as well as geothermal wells. They experience destructive vibrations, many of which are highly dependent on drill string modes. In this paper, we show that the lowest frequency modes are not necessarily the most critical and we delineate a methodology for reducing the number of modes representing the drill string. The frequency response function and stability diagram are used as measures of dynamic similarity between the proposed model and the drill string. We also introduce a novel approach to represent a drill string in laboratory test rigs. This approach not only represents the drill string dynamics but also offers flexibility to modify, remove, or augment the modes representing the system. The underlying principle is that in a multi-degree-of-freedom in-series spring-mass system with Rayleigh damping, dynamic modes can be decoupled. Applying the force to the end node (bit), the modes can then be configured separately in a parallel arrangement where their contributions to bit displacement are added algebraically. A practical arrangement for this purpose is proposed in this paper. Construction of a test rig that accurately represents the drill string dynamics is critical to validation of any test data on bits, bottom hole assemblies, instrument subs, and so on.
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GUI, LING-JIAN, SHENG-BIN JIA, XIAN-LIN GUO, MEGAN PRICE, SONG-DONG ZHOU, and XING-JIN HE. "Tongoloa tagongensis (Apiaceae), a new species from the Hengduan Mountains, China." Phytotaxa 461, no. 1 (September 30, 2020): 12–20. http://dx.doi.org/10.11646/phytotaxa.461.1.2.
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Tongoloa tagongensis (Apiaceae), is proposed as a new species from the Hengduan Mountains in Sichuan, western China. It is most similar to T. elata, but the new species’ roots are short conic to tuberous, lower leaves 2–3-ternate/pinnate, rays 4–11, and ribs more obvious. Description and illustrations are provided.
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WATSON, CHARLOTTE, EKIN TILIC, and GREG W. ROUSE. "Revision of Hyalopale (Chrysopetalidae; Phyllodocida; Annelida): an amphi-Atlantic Hyalopale bispinosa species complex and five new species from reefs of the Caribbean Sea and Indo-Pacific Oceans." Zootaxa 4671, no. 3 (September 18, 2019): 339–68. http://dx.doi.org/10.11646/zootaxa.4671.3.2.
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The formerly monotypic taxon, Hyalopale bispinosa Perkins 1985 (Chrysopetalinae), is comprised of a cryptic species complex from predominantly tropical embayments and island reefs of the Western Atlantic and Indo-Pacific Oceans. Hyalopale species are of meiofaunal size (length: 1−2.8mm), but considered non-interstitial, with the majority of species inhabiting a singular habitat of shallow littoral zones among algae and epifauna overlying sediments in rubble. Hyalopale adults exhibit notochaetal fans characterized by the presence of lateral and midline notochaetal spines. Species of Hyalopale can be distinguished by the shape of glass-like notochaetal paleae and the number of densely stacked ribs. Hyalopale bispinosa forms a western and eastern Atlantic species complex, comprising the type species, Hyalopale bispinosa s.s., a comparatively larger form with the highest number of notochaetal paleael ribs from Florida, and Hyalopale cf. bispinosa, from the western and eastern Mediterranean, a smaller form with a similar notochaetal morphology to the latter. Unfortunately, no molecular sequence data is available for Hyalopale bispinosa s.s. Five new species are described, with molecular sequence data provided for three: Hyalopale leslieae sp. nov., a small form with a comparatively low number of paleal ribs, found from the Florida Keys to Belize, Caribbean Sea, H. zerofskii sp. nov. from southern California and Mexico, eastern Pacific and H. sapphiriglancyorum sp. nov., a distinctive species with the lowest number of paleael ribs, from Raja Ampat, Indonesia and the Great Barrier Reef, Queensland, western Pacific. Two other species are described from morphology alone: H. angeliensis sp. nov. from Dampier, Western Australia and Seychelle Islands, eastern Indian Ocean and H. furfuricula sp. nov. from the Red Sea and Mozambique, western Indian Ocean, possessing a unique paleal brow shape. While well supported as a clade, support for relationships within Hyalopale is low. Hyalopale cf. bispinosa (Mediterranean) was recovered as sister group to the remaining Hyalopale, with H. leslieae sp. nov. as sister to the Hyalopale Pacific clade, comprising H. zerofskii sp. nov. (eastern Pacific) and H. sapphiriglancyorum sp. nov. (western Pacific). Within Chrysopetalinae, Hyalopale and Paleanotus formed a clade that was the sister group to the other paleate chrysopetalids under maximum likelihood, though Paleanotus grouped with the other paleate forms under maximum parsimony. The adult morphology of Hyalopale species is compared with that exhibited in the larvae of Paleanotus species; based on these results, including possession of a shared notochaetal character, Hyalopale is considered to contain paedomorphic taxa.
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Tang, Xiaochao, Angelica M. Palomino, and Shelley M. Stoffels. "Reinforcement Tensile Behavior under Cyclic Moving Wheel Loads." Transportation Research Record: Journal of the Transportation Research Board 2363, no. 1 (January 2013): 113–21. http://dx.doi.org/10.3141/2363-13.
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Numerous studies have revealed the benefits of using geogrids in a flexible pavement, especially for reducing permanent deformation. One of the questions that remain about the effectiveness of a geogrid in reinforcing of pavement is the extent to which the geogrid is engaged and mobilized throughout its service. This paper presents results of a laboratory study on various geogrid products embedded in flexible-pavement sections. The laboratory-scale pavement sections were subjected to cyclic moving wheel loads by using reduced-scale accelerated pavement testing (APT). During the APT, strains that developed in the geogrids were measured at intervals of loading applications by strain gauges installed in pairs on the upper and lower surfaces of the geogrid ribs. Permanent deformation of the subgrade was also measured at the same intervals of loading applications. The measurements of geogrid strains throughout the construction process indicated that the construction resulted in a considerable prestressing effect on the geogrids. Measurements from the individual strain gauges in pairs showed that the gauges installed on the upper surfaces of the ribs were in compression while those on the lower surfaces were in tension; the situation suggested a significant effect on the flexural deflection of the ribs on the tensile strain measurements from the strain gauges. Furthermore, it was observed that geogrid ribs in the longitudinal direction of traffic loading were not mobilized, while considerable strains were developed in geogrid ribs in the direction transverse to traffic loading. A clear correlation was found between the reinforcing forces developed in the geogrids and the performance of the reinforced subgrade in relation to resisting permanent deformation.
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DE MATOS NOGUEIRA, JOÃO MIGUEL, and ADRIANO ABBUD. "Three new serpulids (Polychaeta: Serpulidae) from the Brazilian Exclusive Economic Zone." Zoosymposia 2, no. 1 (August 31, 2009): 201–27. http://dx.doi.org/10.11646/zoosymposia.2.1.16.
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Three new species of serpulids from Brazil are described herein, two of which were described, but not named, by Zibrowius are here considered as new species and given specific names. Vermiliopsis zibrowii sp. nov. is characterized by an operculum with a single endplate or several septa progressively nearer to each other towards the tip and which are separated by conspicuous ribs. Pseudovermilia harryi sp. nov. has an operculum with several septa separated by short ribs and its tube is different from similar congeners. Filogranula revizee sp. nov. has an operculum with a sunken funnel and, frequently, a slender, distally sharp spine. Comparisons between these three species and related species are provided
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GÜRDAL, BAHAR, HÜSEYİN ONUR TUNCAY, and H. AŞKIN AKPULAT. "Peucedanum akaliniae (Apiaceae), a new species from Southern Turkey." Phytotaxa 425, no. 3 (December 5, 2019): 145–53. http://dx.doi.org/10.11646/phytotaxa.425.3.4.
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Peucedanum akaliniae is described as a new species from Southern Turkey. It is similar to P. graminifolium, P. longifolium, P. ruthenicum and P. guvenianum. Diagnostic morphological characters are represented and compared with closely related species. It differs from related taxa by having long petioles with long fibrous collar, pinnate leaves, opposite-verticillate inflorescence, unequal rays and pedicels, number of bracts and white flowers, oblong-ovat fruit shape, dorsal vittae regularly 1–2 per vallecula and ribs, 1–3 vittae in the lateral wings and costas.
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CHEN, YOU-SHENG, LIAN-SHENG XU, and RUI KE. "Nabalus muliensis (Asteraceae, Cichorieae), a new species from China." Phytotaxa 416, no. 4 (September 18, 2019): 257–62. http://dx.doi.org/10.11646/phytotaxa.416.4.4.
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Nabalus muliensis (Asteraceae, Cichorieae), a new species from southwestern Sichuan, China, is described and illustrated. It is the third species of Nabalus occurring in China. The new species is similar to Nabalus tatarinowii in its paniculiform inflorescence, nodding capitula, 3–5 florets, cylindric involucre, achene with unequal ribs and pale brown pappus, but differs by its yellow florets (vs. purple, white or pink), leaf blade lyrate-pinnatilobate (vs. divided with 1–3 pairs of lobes), and achenes with a 2–3 mm long beak (vs. apex truncate). The new species is considered Endangered (EN) according to the IUCN Red List Categories and Criteria.
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CHU, SHAN-SHAN, DE-QUN WANG, HUA-SHENG PENG, and LU-QI HUANG. "Peucedanum huangshanense (Apiaceae), a new species from Anhui, China." Phytotaxa 430, no. 1 (January 23, 2020): 17–24. http://dx.doi.org/10.11646/phytotaxa.430.1.3.
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Peucedanum huangshanense, a new species discovered in Anhui, China, is illustrated and described. Detailed morphological comparisons have showed that it is similar to P. praeruptorum but differs from the latter by having larger compound umbels (5–14 cm across), rays up to 25, and long-ovoid mericarps with lateral ribs narrowly winged. To explore the phylogenetic position of this species, nuclear ribosomal DNA internal transcribed spacer (ITS) region was sequenced for P. huangshanense and P. praeruptorum collected in different places. The morphological and molecular evidences support the hypothesis that P. huangshanense is a new distinct species.
Dissertations / Theses on the topic "String rios"
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Paerschke, Ekaterina. "Interplay of Strong Correlation, Spin-Orbit Coupling and Electron-Phonon Interactions in Quasi-2D Iridium Oxides." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2018. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-235245.
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In the last decade, a large number of studies have been devoted to the peculiarities of correlated physics found in the quasi-two-dimensional square lattice iridium oxides. It was shown that this 5d family of transition metal oxides has strong structural and electronic similarities to the famous 3d family of copper oxides. Moreover, a delicate interplay of on-site spin-orbit coupling, Coulomb repulsion and crystalline electric field interactions is expected to drive various exotic quantum states. Many theoretical proposals were made in the last decade including the prediction of possible superconductivity in square-lattice iridates emerging as a sister system to high-Tc cuprates, which however met only limited experimental confirmation. One can, therefore, raise a general question: To what extent is the low-energy physics of the quasi-two-dimensional square-lattice iridium oxides different from other transition metal oxides including cuprates? In this thesis we investigate some of the effects which are usually neglected in studies on iridates, focusing on quasi-two-dimensional square-lattice iridates such as Sr2IrO4 or Ba2IrO4. In particular, we discuss the role of the electron-phonon coupling in the form of Jahn-Teller interaction, electron-hole asymmetry introduced by the strong correlations and some effects of coupling scheme chosen to calculate multiplet structure for materials with strong on-site spin-orbit coupling.
Thus, firstly, we study the role of phonons, which is almost always neglected in Sr2IrO4, and discuss the manifestation of Jahn-Teller effect in the recent data obtained on Sr2IrO4 with the help of resonant inelastic x-ray scattering. When strong spin-orbit coupling removes orbital degeneracy, it would at the same time appear to render the Jahn-Teller mechanism ineffective. We show that, while the Jahn-Teller effect does indeed not affect the antiferromagnetically ordered ground state, it leads to distinctive signatures in the spin-orbit exciton.
Second, we focus on charge excitations and determine the motion of a charge (hole or electron) added to the Mott insulating, antiferromagnetic ground-state of square-lattice iridates. We show that correlation effects, calculated within the self-consistent Born approximation, render the hole and electron case very different. An added electron forms a spin-polaron, which closely resembles the well-known cuprates, but the situation of a removed electron is far more complex. Many-body configurations form that can be either singlets and triplets, which strongly affects the hole motion. This not only has important ramifications for the interpretation of angle-resolved photoemission spectroscopy and inverse photoemission spectroscopy experiments of square lattice iridates, but also demonstrates that the correlation physics in electron- and hole-doped iridates is fundamentally different.
We then discuss the application of this model to the calculation of scanning tunneling spectroscopy data. We show that using scanning tunneling spectroscopy one can directly probe the quasiparticle excitations in Sr2IrO4: ladder spectrum on the positive bias side and multiplet structure of the polaron on the negative bias side. We discuss in detail the ladder spectrum and show its relevance for Sr2IrO4 which is in general described by more complicated extended t-J -like model. Theoretical calculation reveals that on the negative bias side the internal degree of freedom of the charge excitation introduces strong dispersive hopping channels encaving ladder-like features.
Finally, we discuss how the choice of the coupling scheme to calculate multiplet structure can affect the theoretical calculation of angle-resolved photoemission spectroscopy and scanning tunnelling spectroscopy spectral functions.
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Morrone, Henrique. "A lei de Kaldor-Verdoor no Brasil : uma an?lise dos setores industrial e agropecu?rio." Pontif?cia Universidade Cat?lica do Rio Grande do Sul, 2006. http://tede2.pucrs.br/tede2/handle/tede/3853.
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Previous issue date: 2006-04-24Nesse trabalho pretende-se aprofundar a discuss?o sobre a validade da Lei de Kaldor- Verdoorn na economia brasileira. A referida lei estabelece uma rela??o forte e positiva entre as vari?veis taxa de crescimento da produtividade do trabalho do setor manufatureiro, e sua respectiva taxa de crescimento da produ??o. Sua import?ncia adv?m tanto da explica??o do processo de crescimento quanto de sua descri??o. Com isso, no presente estudo, busca-se verificar, empiricamente, a validade da lei de Kaldor-Verdoorn para a ind?stria e agropecu?ria brasileira. A fonte de dados brutos ? origin?ria do Instituto Brasileiro de Geografia e Estat?stica (IBGE) e do IPEADATA, sendo que para a ind?stria foram utilizados os dados da Pesquisa Industrial Mensal (PIM) e para a agropecu?ria foi empregado os dados do Censo Agropecu?rio. No que tange aos dois setores, os per?odos de an?lise foram, respectivamente, de janeiro de 1985 a abril de 2001 para o primeiro e de 1970 a 1995 para o ?ltimo. Objetivando atender aos objetivos expostos, utilizarse- ? dois procedimentos estat?sticos distintos. O primeiro muito usual e popular, ser? o m?todo de Corte Transversal que ser? aplicado para a agropecu?ria. J? para a ind?stria ser? aplicada a t?cnica das S?ries Temporais, aplicando-se um Modelo de Corre??o de Erros (MCE). Os reultados encontrados para a ind?stria e agropecu?ria brasileira revelaram um elevado ajuste para a Lei de Kaldor-Verdoorn, indicando a presen?a de economias de escala est?ticas e din?micas para os dois setores analizados.
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Medeiros, Rosana Kelly da Silva. "Valida??o de conte?do de instrumentos sobre conhecimento e habilidade em sondagem nasog?strica." Universidade Federal do Rio Grande do Norte, 2013. http://repositorio.ufrn.br:8080/jspui/handle/123456789/14804.
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Previous issue date: 2013-11-28Este estudo teve como objetivo construir e validar conte?do de instrumentos avaliativos sobre conhecimento e habilidade de enfermagem no procedimento de sondagem nasog?strica. Trata-se de um estudo metodol?gico realizado na Universidade Federal do Rio Grande do Norte (UFRN) e na Universidade do Estado do Rio Grande do Norte (UERN). A amostra foi composta por 23 ju?zes, selecionados a partir dos crit?rios de inclus?o: serem enfermeiros, docentes nas disciplinas de Semiologia e/ou Semiot?cnica de Enfermagem, ter no m?nimo um ano de experi?ncia nestas disciplinas e ser das institui??es selecionadas para o estudo. A pesquisa se desenvolveu em tr?s etapas: (A) constru??o de dois instrumentos com base na revis?o da literatura que resultou em um roteiro de observa??o da habilidade estruturado composto por 28 itens e um question?rio sobre o conhecimento com 12 quest?es; (B) submiss?o dos instrumentos aos ju?zes, no per?odo de junho a setembro de 2012, os quais deveriam julgar cada item como adequado , adequado com altera??es ou inadequado , al?m de fazer uma avalia??o geral de cada instrumento baseada em 10 crit?rios adaptados do referencial metodol?gico de Pasquali; e (C) valida??o com a verifica??o do n?vel de concord?ncia entre os ju?zes, por meio da aplica??o do ?ndice de Validade de Conte?do (IVC) e do ?ndice Kappa. Utilizou-se o n?vel de consenso maior que 0,75 para o IVC e maior que 0,61 (bom) para o ?ndice Kappa. Estudo aprovado pelo Comit? de ?tica em Pesquisa do Hospital Universit?rio Onofre Lopes (CEP/HUOL), sob CAAE n? 0002.0.294.000-10. Ap?s serem codificados e tabulados, os dados foram analisados por meio de estat?stica descritiva. Dos 23 ju?zes, 87% eram do sexo feminino, com m?dia de idade de 36,5 anos, 73,9% atuavam na UFRN, 78,3% possu?am mestrado acad?mico e 69,6% atuavam exclusivamente na doc?ncia. A m?dia de tempo de experi?ncia na doc?ncia foi de 7,9 anos e nas disciplinas de Semiologia e/ou Semiot?cnica de Enfermagem foi de 5,6 anos. No julgamento do roteiro de observa??o estruturado e do question?rio sobre o conhecimento, nenhum item/quest?o considerou-se inadequado, uma vez que todos obtiveram n?vel de concord?ncia dentro dos ?ndices estabelecidos (IVC > a 0,75 e Kappa > 0,61). Em rela??o ao roteiro estruturado para avaliar habilidade, dos 28 itens presentes, 13 apresentaram ?ndice de concord?ncia perfeito (IVC=1,00; Kappa= 1,00) e outros 15 foram considerados adequados com altera??es, principalmente no que diz respeito ? sequ?ncia instrucional dos t?picos, clareza e vocabul?rio. No question?rio sobre o conhecimento, dentre as 12 quest?es que o compunham, 03 apresentaram ?ndice de concord?ncia perfeito e as demais adequadas com altera??es quanto aos crit?rios vocabul?rio, clareza, atualiza??o e precis?o. Em rela??o ? avalia??o geral dos instrumentos, o roteiro estruturado de habilidade obteve IVC de 0,95 e Kappa de 0,91 e o question?rio do conhecimento, IVC de 0,97 e Kappa de 0,94. Os dois instrumentos mostraram-se v?lidos quanto ao seu conte?do, e constituem ferramentas para fomentar a qualidade da assist?ncia de enfermagem em rela??o ao conhecimento e ? habilidade em sondagem nasog?strica
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Lubianca, Luiza Marsiaj. "An?lise dos lip?dios s?ricos de pacientes obesos m?rbidos submetidos ao bypass g?strico." Pontif?cia Universidade Cat?lica do Rio Grande do Sul, 2015. http://tede2.pucrs.br/tede2/handle/tede/6329.
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Introduction: The aim of this study was to evaluate the correlation between improvement in dyslipidemia and changes in body fat percentage. Material and Method: We conducted an observational, retrospective cohort study of patients subjected to gastric bypass. We selected patients who underwent bioimpedance analysis before surgery and at 3, 6 and 12 months postoperatively. Patients underwent laboratory tests and anthropometric measurements at the same time. Results: We studied 228 patients with a mean age of 37.4 ? 11.7 years. Most patients were female (76.3%). Initially, 143 patients (66.2%) showed criteria for dyslipidemia, and 6 months after surgery, this number fell to 83 patients (50.6%) and continued falling over time to only 45 patients (28.5%) 12 months after surgery. In relating different variables with the decrease in percent body fat at 12 months, a significant association was seen with weight loss (r=0.258; p=0.009), BMI (r=0.272; p=0.005) and waist circumference (r=0.357, p <0.001). However, the only biochemical parameter showing a significant association was HDL-C level (r=-0.267; p=0.009). Patients with the greatest decrease in body fat percentage were those with the largest decrease in weight, BMI and waist circumference and highest increase in HDL-C level. Conclusion: This study demonstrated the association of decrease in percent body fat with increase in HDL-C, regardless of sex and age. The same association was also observed when using the parameters BMI, weight loss and waist circumference.
Introdu??o: O objetivo deste estudo ? avaliar a correla??o entre a melhora da dislipidemia e as altera??es do percentual de gordura corporal. Material e M?todo: Realizamos uma coorte observacional e retrospectiva, pacientes submetidos ao Bypass g?strico. Foram selecionados pacientes que realizaram bioimped?ncia antes da cirurgia e nos meses 3, 6 e 12 de p?s-operat?rio. Os pacientes realizaram exames laboratoriais e medidas antropom?tricas no mesmo momento. Resultados: Foram avaliados 228 pacientes com m?dia de idade de 37,4?11,7 anos. A predomin?ncia foi do sexo feminino (76,3%). Inicialmente 143 pacientes (66,2%) apresentavam crit?rios para dislipidemia e ap?s 6 m?s de cirurgia este n?mero caiu para 83 pacientes (50,6%) e continuou reduzindo at? um ano p?s-cir?rgico chegando a apenas 45 pacientes (28,5%) ap?s 12 meses de cirurgia. Na avalia??o da associa??o das vari?veis com a redu??o do percentual de gordura corporal aos 12 meses, as que se associaram significativamente foram a redu??o do peso (r=0,258; p=0,009), IMC (r=0,272; p=0,005) e circunfer?ncia abdominal (r=0,357; p<0,001). No entanto, com os par?metros bioqu?micos a associa??o foi significativa apenas com os n?veis de HDL (r=-0,267; p=0,009). Pacientes com maior redu??o do percentual de gordura corporal foram os que mais reduziram o peso, IMC e circunfer?ncia abdominal e tamb?m foram os que mais aumentaram os n?veis de HDL. Conclus?o: Este trabalho evidenciou a associa??o da redu??o do percentual de gordura corporal com o aumento do HDL, independente do sexo e da idade. A mesma associa??o tamb?m foi observada quando utilizados os par?metros IMC, redu??o de peso e medida da circunfer?ncia abdominal.
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Marconi, Francesco. "Analysis of biomechanical in vitro tests on the human ribs." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2019. http://amslaurea.unibo.it/18581/.
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In questa Tesi viene descritto il processo di elaborazione dei dati ottenuti su costole umane sottoposte ad un carico flessionale e motiva i risultati ottenuti, con l’obiettivo di ottenere una loro caratterizzazione meccanica. L’elaborazione dei dati è stata suddivisa in tre fasi, che permettono uno studio dal punto di vista meccanico delle costole dall’aspetto globale fino a quello specifico.
Dall’analisi globale si è potuto osservare un particolare andamento dei valori di carico di rottura e modulo elastico al variare delle posizioni delle costole nella gabbia toracica mentre i valori delle deformazioni calcolati dalle correlazioni non hanno prodotto alcun risultato notevole, se non indicare la presenza di un momento torcente agente sui provini oltre a quello flessorio impostato. I dati delle micro-CT invece confermano quanto detto legando le caratteristiche meccaniche ad una certa quantità di tessuto osseo. Inoltre i valori del rapporto Bone volume/Tissue volume indicano una possibile relazione sia con i carichi di rottura che con i moduli elastici.
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Piazi, Marcelle Drumond. "Estresse no trabalho e lesões por esforços repetitivos (LER) em servidores públicos de uma Universidade no Estado do Rio de Janeiro: Estudo Pró-Saúde." Universidade do Estado do Rio de Janeiro, 2012. http://www.bdtd.uerj.br/tde_busca/arquivo.php?codArquivo=3990.
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O presente estudo avalia a associação entre estresse no trabalho e auto-relato de diagnóstico médico de lesão por esforço repetitivo (LER). Trata-se de um estudo seccional, inserido no Estudo Pró-Saúde, que consiste no acompanhamento de uma coorte de funcionários técnico-administrativos de uma universidade no Estado do Rio de Janeiro. Os dados foram obtidos, no ano de 2001, a partir da aplicação de um questionário auto-preenchível. A população de estudo constou de 3.314 funcionários, dentre os quais, 485 apresentaram auto-relato de diagnóstico médico de LER, após sua admissão como funcionários da universidade. A prevalência de LER foi maior entre as mulheres (19,4%) do que entre os homens (8,8%). O estresse no trabalho foi avaliado através da versão reduzida do Job Content Questionnaire, desenvolvido por Karasek e Theorell, cujas questões se destinam a avaliar a demanda psicológica, o controle sobre o próprio trabalho e, o apoio social no trabalho. A análise do estresse no trabalho foi realizada de acordo com os quadrantes propostos por Karasek (1979): baixa exigência (baixa demanda e alto controle); trabalho passivo (baixa demanda e baixo controle); alta exigência (alta demanda e baixo controle) e; trabalho ativo (alta demanda e alto controle). Nesta análise, utilizou-se como categoria de referência, a baixa exigência, por compor um cenário ideal de trabalho. Após ajuste por variáveis socioeconômicas e demográficas (idade, escolaridade e renda familiar per capita) e, ocupacionais (anos de trabalho na universidade e ocupação), homens e mulheres com alta exigência no trabalho, apresentaram uma chance maior de serem acometidos por LER (homens: OR= 1,88; IC95% 1,07-3,29 e mulheres: OR= 1,90; IC95% 1,32-2,02). No ajuste adicional pelo apoio social no trabalho, houve redução da força da associação, para ambos os sexos. Para as mulheres com alta exigência no trabalho, esta associação manteve-se significativa (OR= 1,63; IC95%= 1,12-2,37); enquanto que para os homens, esta associação ficou marginalmente significante (OR= 1,62; IC95%= 0,91-2,87). Este estudo reforça que o desequilíbrio entre a demanda psicológica no trabalho e o controle sobre o próprio trabalho é importante na ocorrência de LER e, portanto, pode ser útil na elaboração de medidas preventivas desse crescente problema de sáude pública. Espera-se que as hipóteses geradas neste estudo possam ser testadas em novas investigações que incorporem o desenho longitudinal, como o Estudo Pró-Saúde, no qual este se insere.The study evaluates the association between job strain and self-reported medical diagnosis of repetitive strain injury (RSI). This is a cross-sectional study, included in the Pro-Saude Study, which consists of tracking a cohort of technical and administrative employees of a university in the State of Rio de Janeiro. The data were obtained in 2001 from the application of a self-administered questionnaire. The study population consisted of 3314 employees, among which 485 were self-reported medical diagnosis of RSI, after this admission to university. The prevalence of RSI was higther among women (19.4%) than amog men (8.8%). Job strain was assessed by the shortened version of Job Content Questionnaire, developed by Karasek and Theorell, whose questions are intended to assess the psychological demands, control over work, and social support. The analysis of job strain was performed according to the quadrants proposed by Karasek (1979): low strain (low demand and high control), passive job (low demand and low control), high strain (high demand and low control) and, active job (high demand and high control). In this analysis, was used as the reference category, the low strain, an ideal setting for composing work. After adjusting for socioeconomic and demographic variables (age, education and family income per capita) and occupational (years work and occupation), men and women with high demands at work were more likely to be affected by RSI (men : OR = 1.88, 95% CI 1.07; 3.29 and women: OR = 1.90, 95% CI 1.32; 2.02). In additional adjustment for social support at work, a reduction in strength of association for both sexes was founded. For women at high strain at work, this association remained significant (OR = 1.63, 95% CI 1.12 to 2.37), while for men, this association was marginally significant (OR = 1, 62, 95% CI 0.91 to 2.87). This study reinforces that the imbalance between job psycological demands and job control is important in the occurrence of RSI and therefore may be useful in developing preventive measures of this growing problem of public health. It is expected that the hypoteses generated in this study can be tested in further investigations that include the longitudinal design, as the Pro-Saude Study, in which it falls.
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Lima, Na?la Kelly do Nascimento. "BURNOUT: analisando a s?ndrome do ramo das ind?strias aliment?cias do Rio Grande do Norte." Universidade Federal do Rio Grande do Norte, 2007. http://repositorio.ufrn.br:8080/jspui/handle/123456789/12098.
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Previous issue date: 2007-08-24Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior
This paper aims to verify the Burnout?s possibilities of incidence, finding the creating dimensions and comparing with the socio-demographics characteristics of the researched professionals. This quantitative-descriptive search has a population of 197 workers of 23 nourishing companies in Rio Grande do Norte. This population is predominantly male, younger than 28 years old, single, relatively instructed (57,07% with complete high school) and having just started their current job since 79% of the interviewees are in the company less than six years. The AUDITORIA DO SISTEMA HUMANO (ASH) model, utilized for investigation and developed for the Spaniards Quijano and Navarro in 1999, has several dimensions about human resources management and the organizational effectiveness, but only makes part of the research in 19 questions Burnout referring. It was used factorial analyses with extraction method, varimax rotation and Kaiser normalization with the intuition to define the creating dimensions of the syndrome, they were evaluated with Cronbach Alpha coefficient after extraction. The dimensions found through the factorial analyses were: emotional exhaustion, physical exhaustion and vitality. The accumulated explanation value reached 65,30% of total variation. The data socio-demographics don t justify the syndrome appearance, because the T test and ANOVA showed irrelevant values. It has been also observed that the founded dimensions were different of the Maslach sociopsychological perspective (emotional exhaustion, depersonalization and low professional realization) allowing comparison with others researches and the possibility to develop new ones with workers from different assistance areas. These new researches are important, since the syndrome refers to chronic labor stress consequences and any professional is favorable to Burnout, harmful to the company as to the collaborators
Este estudo objetiva verificar a possibilidade de incid?ncia da s?ndrome de burnout, encontrando as dimens?es formadoras e comparando com as caracter?sticas s?ciodemogr?ficas dos profissionais pesquisados. A pesquisa de cunho quantitativodescritiva tem como popula??o 197 funcion?rios de 23 empresas do setor aliment?cio do Estado do Rio Grande do Norte e ? predominantemente masculina, com idade inferior a 28 anos, solteira, relativamente culta (57,07% possuem ensino m?dio completo) e com pouco tempo no emprego, j? que 79% dos entrevistados est?o na empresa a menos de seis anos. O modelo da Auditoria do Sistema Humano (ASH), instrumento de investiga??o utilizado que foi desenvolvido pelos espanh?is Quijano e Navarro em 1999, possui v?rias dimens?es sobre a gest?o da qualidade dos Recursos Humanos e a efetividade organizacional, mas s? fizeram parte da pesquisa as 19 quest?es referentes ao burnout. Com intuito de definir as dimens?es formadoras da s?ndrome, foi utilizada a an?lise fatorial com m?todo de extra??o, rota??o varimax e normaliza??o Kaiser, sendo avaliadas, ap?s a extra??o, com o coeficiente Alpha de Cronbach. As dimens?es encontradas atrav?s da an?lise fatorial foram: exaust?o emocional, esgotamento e vitalidade, tendo o valor da explica??o acumulada atingido 65,30% da varia??o total. Os dados s?ciodemogr?ficos n?o justificaram o aparecimento da s?ndrome, pois o Teste T e a ANOVA apresentaram valores irrelevantes. Observou-se tamb?m que as dimens?es encontradas no trabalho foram diferentes da perspectiva social-psicol?gica de Maslach (exaust?o emocional, despersonaliza??o e baixa realiza??o profissional) permitindo assim a compara??o com outros estudos e a possibilidade de desenvolvimento de novas pesquisas com funcion?rios de ?reas diferentes da assistencial. Essas novas pesquisas s?o importantes, uma vez que a s?ndrome refere-se ? conseq??ncia do estresse laboral cr?nico e qualquer profissional est? prop?cio ao burnout, prejudicial tanto para empresa quanto para os colaboradores
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Gurgel, Piata de Melo. "Avalia??o do impacto socioambiental de ind?strias t?xteis no rio Jundia? - Maca?ba/RN/Brasil." Universidade Federal do Rio Grande do Norte, 2015. http://repositorio.ufrn.br/handle/123456789/19859.
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Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior - CAPES
A contamina??o dos ambientes aqu?ticos ? um fen?meno que remonta ?s origens das civiliza??es humanas e foi amplificado pelo advento dos processos industriais. A cidade de Maca?ba/RN/Brasil tem como principal corpo h?drico o rio Jundia? que sofre descarga de efluentes de diversas ind?strias. O estudo se bifurcou numa frente de percep??o socioambiental, realizado por meio de entrevistas semiestruturadas cujo efluente t?xtil foi apontado pela popula??o como o principal problema no rio. Observou-se que quase a totalidade dos entrevistados apresentava preocupa??o com o meio ambiente. Al?m disso, h? uma inclus?o dos indiv?duos como parte causadora da problem?tica, pois uma parte significativa reconhece que suas atividades podem causar preju?zos ao ambiente e ? sa?de da popula??o. A partir disto, o monitoramento experimental da qualidade de ?gua foi conduzido por meio de analises f?sicas e qu?micas e ensaios ecotoxicol?gicos que se propuseram a avaliar em Pomacea lineata e em Mysidopsis juniae o efeito isolado do efluente t?xtil e sua influ?ncia no rio em compara??o com os limites estabelecidos pela legisla??o brasileira. Apesar das analises f?sicas e qu?micas demonstrarem-se inconclusivas acerca da participa??o do efluente t?xtil na contamina??o ambiental do rio, os ensaios ecotoxicol?gicos demonstraram-se contundentes ao sinalizar que o efluente pode apresentar risco aos organismos aqu?ticos e consequentemente ? sa?de humana. Assim, por meio de uma abordagem interdisciplinar foi poss?vel estudar a causa do problema socioambiental apontado pela popula??o na fase de percep??o e o efeito mensur?vel com an?lises de qualidade de ?gua no rio por meios dos ensaios mencionados.
The contamination of aquatic environments is a phenomenon that dates back the origins of human civilizations and was amplified by the advent of industrial processes. The Jundia? river , Maca?ba's main water source, suffering discharge of effluents from various industries. The study work?s in two fronts, the environmental perception front was conducted through semistructured interviews whose textile effluent was appointed by the population as the main problem in the river. It was observed that nearly all respondents had concerns about the environment. In addition, there is an inclusion of individuals as the cause of the problem, because a significant part recognizes that its activities may cause damage to the environment and people's health. In other front, the experimental monitoring of water quality was conducted through ecotoxicological tests and physiochemical analysis that proposed to assess Pomacea lineata .Mysidopsis juniae isolated effect of textile effluent and its influence on the river compared with the limits established by Brazilian law. Although the physio-chemical analysis shows is inconclusive about the participation of the textile effluent in environmental contamination of the river, the ecotoxicological tests have shown to blunt the signal that the effluent may present a risk to aquatic organisms and consequently to human health. Thus, an interdisciplinary way it was possible to study the cause of the environmental problem identified by the population in the realization phase and measurable effect on water quality analysis in the river by means of the tests mentioned.
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Martins, Luciamáre Perinetti Alves. "Isolamento e caracterização de cepas de Trypanosoma cruzi Chagas,1909 (Kinetoplastida, Trypanosomatidae) a partir de triatomíneos silvestres do Estado do Rio Grande do Sul /." Araraquara : [s.n.], 2005. http://hdl.handle.net/11449/104540.
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Resumo: Embora a incidência da doença de Chagas tenha diminuído, os estudos sobre o Trypanosoma cruzi devem continuar, dada a dificuldade para o efetivo controle dos seus vetores. Triatoma infestans o principal vetor da doença de Chagas está praticamente eliminado no Brasil, entretanto outras espécies de Triatominae estão em processo de domiciliação, como o Triatoma rubrovaria no Rio Grande do Sul, constituindo-se em um fator de risco para o recrudescimento da infecção chagásica. Com o intuito de caracterizar cepas de T. cruzi que circulam na área rural, foram feitas buscas ativas de triatomíneos para isolamento desse protozoário em bairros do município de Quaraí, RS. Para tanto as fezes dos triatomíneos coletados foram obtidas por compressão abdominal para pesquisa de tripomastigotas metacíclicos. As fezes que se encontraram positivas foram inoculadas em animais de experimentação e em meio de cultura (LIT). Foram isoladas cinco cepas de T. cruzi, assim denominadas: QB1, QJ1, QJ3, QM1 e QM2, que apresentaram as seguintes características: predominância de formas tripomastigotas intermediárias após mensuração no 15º dia pósinfecção, picos parasitêmicos ao redor do17º dia pós-infecção, miotropismo na fase aguda e miosite na fase crônica da infecção. A análise do DNA que codifica a fração 24Sa do rRNA mostrou fragmentos de 110 pb, agrupando-as em T. cruzi I. Os serviços de vigilância epidemiológica foram informados sobre os resultados obtidos.Abstract: Although the decrease in the incidence of Chagas' disease, the studies concerning T. cruzi shall continue, due to the difficulty in controlling its vector. Triatoma infestans the main vector of Chagas'disease is nearly eliminated in Brasil, nevertheless other Triatominae species are on domiciliate process, like Triatoma rubrovaria in Rio Grande do Sul State, representing a hazard factor for increasing Chagas infection. In order to characterize T. cruzi strains that naturally occur in the rural area, active searches were performed in order to isolated these strains in the district of Quarai, RS. Triatomine feces were collected by abdominal compression and the presence of metacyclic tripomastigotes was evaluated. The feces positive for metacyclic triatomines were inoculated in experimental animals and in the culture medium (LIT). Five T. cruzi strains were isolated: QB1, QJ1, QJ3, QM1 and QM2. The strains displayed a predominance of intermediate forms on 15th day post-infection. Parasitimia peak occurred on 17th day post-infection. Myotropism during acute phase and myositis in the chronic phase was oberved. The DNA analysis coding the 24 Sa r RNA fraction has displayed fragments of 110 pb, grouping them in T. cruzi I. The Epidemiologic Vigilance Services have been warmed about the achieved results.
Orientador: João Aristeu da Rosa
Coorientador: Márcia Aparecida Sperança
Banca: Mara Cristina Pinto
Banca: Márcia Aparecida Silva Graminha
Banca: José Clóvis do Prado Júnior
Banca: Sérgio Albuquerque
Doutor
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Contador, Luciana. "Etude de la structure chimique et microbiologique de l'interface air-mer en baie de Guanabara (Rio de Janeiro, Brésil)." Paris 6, 2006. http://www.theses.fr/2006PA066158.
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La microcouche de surface (SML) correspond au premier millimètre de la colonne d’eau. Située à l’interface air-eau, la SML est un environnement unique, riche en microorganismes, en matières organiques, en hydrocarbures et présentant des conditions extrêmes par l’impact des radiations UV et les fortes concentrations de polluants. Les échantillons ont été prélevés dans la SML et dans l’eau sous-jacente (UW) à 7 stations de la Baie de Guanabara, Brésil. Cette étude a permis de caractériser l’abondance et la diversité des bactéries et des hydrocarbures présents dans la SML de la baie. L’origine des hydrocarbures a été analysée par des marqueurs chimiques par chromatographie en phase gazeuse. Sur le plan microbiologique, 43 souches bactériennes ont été isolées et identifiées. Leur résistance aux radiations UV a été évaluée à l’aide d’un simulateur solaire. La SML de la baie est bien définie par rapport à l’UW et enrichie en hydrocarbures et en bactéries. Le bactérioneuston est plus diversifié que le bactérioplancton. La plupart des souches testées sont très résistantes aux UV et sont des espèces potentiellement intéressantes sur le plan biotechnologique.
Books on the topic "String rios"
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illustrator, Swingler Simon, ed. Running riot. Richmond, Vic: Hardie Grant Egmont, 2013.
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Horton, Sheryl T. Drill string and drill collars. 3rd ed. Austin, Tex: Petroleum Extension Service, Division of Continuing Education, University of Texas at Austin in cooperation with International Association of Drilling Contractors, 1994.
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Strange future: Pessimism and the 1992 Los Angeles riots. Durham: Duke University Press, 2005.
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Song, Min. Strange future: Pessimism and the 1992 Los Angeles riots. Durham, NC: Duke University Press, 2006.
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Jencks, Charles. Heteropolis: Los Angeles, the riots and the strange beauty of hetero-architecture. London: Academy Editions, 1993.
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Maurice Strong: Working for planet Earth. Brookfield, Conn: Millbrook Press, 1994.
Find full textBook chapters on the topic "String rios"
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Pylypchuk, Inga, and Heike Winkel. "Strong Emotions, Weak Subjects. On the Role of Hurt Feelings in the Trial against Pussy Riot." In The Role of Religion in Eastern Europe Today, 161–86. Wiesbaden: Springer Fachmedien Wiesbaden, 2014. http://dx.doi.org/10.1007/978-3-658-02441-3_8.
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Mizoguchi, Tadashi, Megumi Isaji, Jiro Harada, and Hitoshi Tamiaki. "Compositional Analysis of Carotenoids in a Purple Photosynthetic Bacteria, Rhodopseudomonas sp. Strain Rits, upon Irradiated Light Intensity." In Photosynthesis. Energy from the Sun, 273–77. Dordrecht: Springer Netherlands, 2008. http://dx.doi.org/10.1007/978-1-4020-6709-9_61.
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MacGregor, J. "River Mushra—”Field of Zoan “—Strange Creatures—A Lost Needle— “ Fire in Zoan”—Qualms—Flamingoes—Rigs—a Yarn—Lubbers—By moonlight—Port Said—Parting Shot—Squall." In A Canoe Cruise in Palestine, Egypt and the Waters of Damascus, 66–76. 1.MacGregor, J. - Journeys - Middle East 2.Rob Roy (Canoe) 3.Canoes and canoeing- Middle East - History- 19th century 4.Jordan River - Description and travel 5.Middle East - Description and travel: Routledge, 2019. http://dx.doi.org/10.4324/9781315828664-5.
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Mascitelli, Bruno, and Mona Chung. "Australia-China and Stern Hu." In Business, Technology, and Knowledge Management in Asia, 123–29. IGI Global, 2013. http://dx.doi.org/10.4018/978-1-4666-2652-2.ch009.
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China’s economic growth over the last decade has been spectacular and Australia has been a beneficiary of this growth in terms of China’s demand for resources and the strength of Chinese exports. Pundits even suggest that Australia avoided the global recession as a result of this strong trade relationship. Trade relations between Australia and China resulted in China becoming Australia’s key trading partner. The arrest and charging in 2009/10 of four Rio Tinto executives (including Stern Hu the head of Rio’s operation in China) based in China raised fears of posing a strain on this vital economic relationship. Moreover China’s inability to takeover Rio Tinto and the significance and consequences of this incident are at the core of this paper. How do these events reflect the uncertainties of doing business in China or do these events demonstrate China’s sovereign right to enforce anti-corruption legislation? While China has embraced the international business community, to what extent has the arrest and imprisonment of Stern Hu changed the Australian-China trade relations including doing business in this thriving and buoyant market?
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Cole, Joshua. "Empire of Fright." In Lethal Provocation, 169–86. Cornell University Press, 2019. http://dx.doi.org/10.7591/cornell/9781501739415.003.0012.
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In the weeks that followed, a succession of events kept the city on high alert, including the trial of Mohamed Bendjelloul for striking a police officer during the riot, and a boycott of Jewish businesses that developed in September and October 1934. This chapter argues that the atmosphere of rumor and uncertainty was aggravated by persistent suggestions that the riots had been encouraged by the anti-Semitism of the settler population, and that the rioters themselves had not seen their participation in attacks on Jewish businesses as anti-French.
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"3. Culture of Wounding: The Riots and Twilight." In Strange Future, 100–133. Duke University Press, 2020. http://dx.doi.org/10.1515/9780822387497-005.
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Hill, Laura Warren. "A Quiet Rage Explodes." In Strike the Hammer, 51–70. Cornell University Press, 2021. http://dx.doi.org/10.7591/cornell/9781501754258.003.0004.
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This chapter traces the eruption of the Black community in response to police brutality, noting July 24, 1964 as one of the era's very first “race riots” that occurred in Rochester. It discusses how a response to police brutality ended as an indictment of the economic conditions in Rochester's ghettoes. It also argues that the three-day rebellion, which ended with the calling up of the National Guard, became a watershed moment in the city of Rochester. The chapter describes the impressive degree of precision that those men and women, youth and senior citizens demonstrated in the rebellion when they attacked the police and private property with vengeance, but exempted community institutions and stores with a reputation for fairness. It investigates the 1964 uprising that seared Black Rochester into the nation's conscience, noting the uprising as the beginning of a series of Black rebellions that rocked the nation's urban centers in the 1960s.
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Goff, James, and Walter Dudley. "Strange, But True." In Tsunami, 105–23. Oxford University Press, 2021. http://dx.doi.org/10.1093/oso/9780197546123.003.0010.
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There are many strange tales of tsunamis that do not fit into researchers’ simple understanding of these events. Intact whale skeletons nearly 150 ft up on top of a cliff, exploding geysers, ships sunk by asteroids, alcoholic beverages running riot through city streets, and the Allies’ development of a tsunami bomb during World War II that was considered equally important as their atomic program are all strange but true stories of the bizarre world of tsunamis. Although none of the events discussed in this chapter necessarily changed the world, they are interesting nonetheless and should change either how scientists search for past tsunamis or how scientists define them.
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Dumas, Alexandre. "XLIX the riot." In Twenty Years After. Oxford University Press, 2008. http://dx.doi.org/10.1093/owc/9780199537266.003.0050.
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It was nearly eleven at night. Gondy had not gone a hundred yards in the streets of Paris before he perceived that a strange change had taken place. The whole city seemed inhabited by fantastic beings; silent shadows were seen removing the street-paving, others...
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November, Nancy. "Op. 131 and the Rise of Attentive Listening." In Beethoven's String Quartet in C-sharp Minor, Op. 131, 103–20. Oxford University Press, 2021. http://dx.doi.org/10.1093/oso/9780190059200.003.0006.
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This chapter begins with a discussion of Mark Andre’s ensemble work riss 2 (2014) as an alternative window on the modern-day reception of Op. 131—the two works can similarly disrupt our ontological understanding of musical works in terms of structure, sound transformations, and especially sense of time. I then step back to consider the larger context in which Op. 131 was originally heard, setting it within an emerging ideology of “serious listening” in Vienna in the early nineteenth century. I consider the early nineteenth century as an era in which the seeds for silent listening were sown, by key agents of change, who tried to adjust audience behavior at string quartet concerts—influential figures such as Schuppanzigh, Beethoven, and reviewers for the Wiener Theater-Zeitung and Viennese Allgemeine musikalische Zeitung in the 1810s and ’20s. Beethoven’s C-sharp minor quartet can be understood as a work that took part in this move to instill silent and serious listening. However, the climate in Vienna was not was not such that Beethoven (and Schuppanzigh) could enjoy much success with this particular listening project. The “romantic listener” does not represent a nineteenth-century norm, and was certainly not the norm in Beethoven’s Vienna. But the compelling ideology of listening and associated habits that started to develop there—especially reverent silence—continue to influence powerfully our concert hall behaviors today.
Conference papers on the topic "String rios"
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Correa, Lauriane, Sabrina Marczak, and Tayana Conte. "Entendendo o Uso de Design Thinking no Apoio ao Desenvolvimento de Software a` luz das Areas de IHC e Sistemas Colaborativos." In XVII Simpósio Brasileiro de Fatores Humanos em Sistemas Computacionais. Sociedade Brasileira de Computação (SBC), 2018. http://dx.doi.org/10.5753/ihc.2018.4234.
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O Design Thinking aparece na Engenharia de Software como uma abordagem promissora, incentivando a colaborac¸a~o, auxiliando no entendimento e consequente especificac¸a~o das necessidades do usua´rio. Inspirado em pra´ticas de Design centradas no usua´rio, a abordagem ainda tem seus benefi´cios pouco conhecidos no apoio ao desenvolvimento de software. Assim, este projeto visa identificar como o Design Thinking tem sido usado neste contexto. Propo~e-se uma abordagem empi´rica de pesquisa baseada em mu´ltiplos estudos com usua´rios e profissionais da indu´stria, bem como especialistas no uso da abordagem para explorar o assunto. Estes estudos sera~o conduzidos a` luz de conceitos das areas de Interac¸a~o Humano-Computador (e.g., design centrado no usua´rio, personas) e Sistemas Colaborativos (e.g., colaborac¸a~o), vislumbrando contribuir para a integrac¸a~o das a´reas. Um primeiro estudo esta´ em andamento com instrutores e alunos de academias de musculac¸a~o visando tratar a problema´tica de instrutores e alunos trabalharem distantes uns dos outros e em relac¸a~o aos treinos definidos. Resultados preliminares do estudo indicam que o Design Thinking de fato permite uma melhor compreensa~o do usua´rio e suas necessidades. Estudos futuros fazem parte da nossa proposta de pesquisa para corroborar e expandir estes insights iniciais.
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Kimura, Tetsuji. "Generalized Geometries in String Compactification Scenarios." In Proceedings of the Noncommutative Geometry and Physics 2008, on K-Theory and D-Branes & Proceedings of the RIMS Thematic Year 2010 on Perspectives in Deformation Quantization and Noncommutative Geometry. WORLD SCIENTIFIC, 2013. http://dx.doi.org/10.1142/9789814425018_0003.
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Hebert, Ryan, Srinath V. Ekkad, and Vivek Khanna. "Combination of Impingement and Trip Strips for Combustor Liner Backside Cooling." In ASME 2004 Heat Transfer/Fluids Engineering Summer Conference. ASMEDC, 2004. http://dx.doi.org/10.1115/ht-fed2004-56536.
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Effective cooling of modern low NOx combustor liners is achieved through combinations of impingement and other heat transfer enhancement methods. In the present study, a combination of impingement and trip strips is studied to determine the optimum location of trip strips with respect to impingement jet arrays. Heat transfer with pure impingement has degradation downstream due to increased cross-flow effects. To counter the cross-flow induced heat transfer degradation, a combination technique wherein impingement is combined with ribs placed in between impingement rows or downstream of the impingement array is studied. Three configurations with increased rib placements and reduced impingement holes are studied and compared with pure impingement cases for the same jet Reynolds number. Three jet Reynolds numbers are studied for Rej = 10000, 20000, and 30000. Detailed heat transfer distributions are obtained using the transient liquid crystal technique. Results show that the presence of ribs increases jet impingement heat transfer on the surface with lower mass flows. The effectiveness of the combination ribs and impingement can provide higher heat transfer with reduced cooling air requirements.
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Grassi, Frédérique, and Otavio Socolowski Junior. "A TEST OF PARTICLE EMISSION SCENARIO: STRANGE PARTICLE RATIOS." In Fifth Rio de Janeiro International Workshop. WORLD SCIENTIFIC, 1998. http://dx.doi.org/10.1142/9789814528917_0032.
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Pak, Chan-gi. "Shape Sensing for Wings with Spars and Ribs using Strain Data." In AIAA Scitech 2019 Forum. Reston, Virginia: American Institute of Aeronautics and Astronautics, 2019. http://dx.doi.org/10.2514/6.2019-1756.
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Feuer, Gavriel, and Subrata Saha. "Effect of Strain Rate on the Bending Properties of Human Ribs." In ASME 2011 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2011. http://dx.doi.org/10.1115/sbc2011-53587.
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To fully characterize the mechanical behavior of bones under various loading conditions, it is important to determine the effect of strain rate on the load carrying capacit and fracture behavior of various members of our skeletal system. In this study embalmed human ribs were tested in a three-point bending mode under deformation rates of 0.05 mm/s, 0.5 mm/s, and 8 mm/s. Mechanical parameters such as maximum bending moment, maximum deformation, bending stiffness, and energy absorption capacity were determined. The maximum bending moment and stiffness showed an increase by 53 and 8 percent, respectively, at the highest rate of deformation compared to the lowest. The ultimate deformation and energy absorbed also increased by 26 and 66 per cent, respectively, in this range of deformation rate. This data confirms that bone is visco-elastic in nature and exhibits different mechanical properties that depend on the deformation rate.
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Lemos, Daniel, Jean Marins, and Raone De Lima. "ESP and Completion Deployment using Dual Derrick Drill Ship Rigs." In SPE Annual Technical Conference and Exhibition. SPE, 2021. http://dx.doi.org/10.2118/206309-ms.
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Abstract This paper presents an innovative concept to run Electrical Submersible Pumps (ESP) and upper completion utilizing dual derrick drillship rigs in deep water wells. The availability of a second deck to assemble, test and rack long assemblies brings the possibility to conduct a safer, efficient and reliable operation. The experience in Brazil running complex completions and high horsepower ESPs shows how important is to implement initiatives to reduce rig time. The main objective of the new process is to have every completion tool readily available in the drilling deck, requiring minimum time to connect it to the completion string. In the standard process, the tool sits in the pipe deck until completion string reaches its set position and only then the equipment is brought into the rig floor to be serviced and made up to the completion string. The methodology to assemble ESP and completion tools offline in the auxiliary derrick was developed in partnership with the operator, the service company, and the drilling rig contractor. The offline preparation concept was considered as part of the completion design phase analyzing every step of the upper completion run, looking for efficiency improvement and reduced total rig time. The modern automated pipe handling system was used to manipulate the long and heavy assemblies from the auxiliary deck to the racking system and from the racking system to the main deck without any safety concern, and with minimal human intervention. Eight deep-water operations were completed in Brazil using the new concept and the results brought important rig time reduction in the upper completion running time. The tools that were part of the completion included DHSV, permanent downhole gauges, chemical injection valves, 1600 HP ESP system and tubing test valves. The new process allows the team to service equipment without the usual operation rush reducing installation related failure therefore increasing equipment reliability. The methodology presented on this paper contributes to oil industry as a field-proven reference for offshore ESP and completion deployment technique reducing HSE exposure and total well construction cost. This is particularly important for deep and ultra-deepwater projects which are associated with high intervention costs. Dual derrick rigs were designed with focus to improve drilling operations and after the new process development, the modern robotized machinery empowers ESP and completion activities with improved efficiencies.
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Jeon, Sungeun K., Jeremy Banik, and Michael Peterson. "Free Deployment of a Sparse-Isogrid Column with High Strain Composite Ribs." In 3rd AIAA Spacecraft Structures Conference. Reston, Virginia: American Institute of Aeronautics and Astronautics, 2016. http://dx.doi.org/10.2514/6.2016-0971.
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Naik, S., and S. D. Probert. "Thermal Optimisation of Longitudinal Ribs in Variable Geometry Ducts." In ASME 1997 International Gas Turbine and Aeroengine Congress and Exhibition. American Society of Mechanical Engineers, 1997. http://dx.doi.org/10.1115/97-gt-376.
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Augmenting the heat transfer rates in the internal flow passages of several components of a gas turbine, such as the turbine blades, vanes and combustor walls is an important pre-requisite for maintaining their structural integrity. This is particularly paramount when higher turbine inlet temperatures and pressure ratios are utilised for enhancing the thermal efficiencies of the gas turbine plant. In this study, the heat transfer enhancement, which can be achieved by longitudinal ribs in a variable geometry duct, has been examined. With the base of the ribs maintained at a constant temperature, it was observed that the optimal rib spacing, which corresponded to the maximum heat transfer from the ribs, was a strong function of the rib height to length ratio and the Reynolds number but relatively insensitive to the amount of clearance above the ribs. A design correlation is proposed which shows the distribution of this optimal rib spacing for a wide range of rib geometrical and operational conditions. Comparisons of the longitudinal ribs with pin fin arrays indicated that at rib height to length ratios of ≥ 0.24, higher heat transfers can be achieved with the longitudinal ribs. The frictional characteristics of the longitudinal ribs is comparable to those of circular pin fins. Measurements of the local heat transfer coefficient for the rib surfaces indicate that it is highly non-uniform along the rib height and length and also significantly influenced by the amount of clearance above the ribs. For all the cases examined, it was observed that developing flow conditions (thermally and hydrodynamically) were prevalent within the longitudinal rib channels.
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Sakai, Eiji, and Toshihiko Takahashi. "Experimental and Numerical Study on Effects of Turbulence Promoters on Flat Plate Film Cooling." In ASME 2011 Turbo Expo: Turbine Technical Conference and Exposition. ASMEDC, 2011. http://dx.doi.org/10.1115/gt2011-45196.
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Turbulence promoters such as ribs inside turbine blade coolant channels are used to improve convective cooling but at the same time could influence external film cooling performance. The effects of rib orientation and rib position on film cooling performance are experimentally and numerically studied with a flat plate configuration in which external (main) flow and internal (secondary) flow are oriented perpendicular to each other. In the experiment, temperature fields are measured by thermo-couples varying blowing ratio at constant Reynolds number of main and secondary flows. To obtain detailed information about flow fields, Reynolds Averaged Navier Stokes (RANS) simulation and Detached Eddy Simulation (DES) are also performed using a commercial code Fluent. Temperature measured shows that rib orientation has a strong influence on film effectiveness. With forward-oriented ribs, higher film effectiveness is observed compared to the reference case without ribs. On the contrary with inverse-oriented ribs, lower film effectiveness is observed. The difference comes from the flow structure in the film cooling hole. With the forward-oriented ribs, straight stream lines are observed in the cooling hole, while with the inverse-oriented ribs, helical stream lines are observed. Due to the helical stream lines in the hole, ejection angle of the secondary flow to the main stream becomes large, resulting in so called lift-off and lower film effectiveness.