Finite element for rotor/stator interactive forces in general engine dynamic simulation. Part 1: Development of bearing damper element

A general purpose squeeze-film damper interactive force element was developed, coded into a software package (module) and debugged. This software package was applied to nonliner dynamic analyses of some simple rotor systems. Results for pressure distributions show that the long bearing (end sealed) is a stronger bearing as compared to the short bearing as expected. Results of the nonlinear dynamic analysis, using a four degree of freedom simulation model, showed that the orbit of the rotating shaft increases nonlinearity to fill the bearing clearance as the unbalanced weight increases

Engine dynamic analysis with general nonlinear finite element codes. Part 2: Bearing element implementation overall numerical characteristics and benchmaking

Finite element codes are used in modelling rotor-bearing-stator structure common to the turbine industry. Engine dynamic simulation is used by developing strategies which enable the use of available finite element codes. benchmarking the elements developed are benchmarked by incorporation into a general purpose code (ADINA); the numerical characteristics of finite element type rotor-bearing-stator simulations are evaluated through the use of various types of explicit/implicit numerical integration operators. Improving the overall numerical efficiency of the procedure is improved

Produção orgânica de café no Sítio Santa Cecília, em Glória de Dourados-MS

bitstream/item/66258/1/31284.pdfOrganizado por: Alberto Feiden, Milton Parron Padovan, Adalgiza Inês Campolim, Aurélio Vinícius Borsato, Ivo de Sá Motta, João Batista Catto, Tércio Jacques Fehlauer

Macro e microporosidade do solo cultivado com adubos verdes perenes consorciados com a bananeira em um sistema sob transição agroecológica em Mato Grosso do Sul.

bitstream/item/69053/1/066-carneiro-macro.pdfPublicado também no Cadernos de Agroecologia, v. 7, n.2, 2012

Agroecologia em Mato Grosso do Sul: princípios, fundamentos e experiências.

Agricultura ecológica: heteronomia e servidão? Histórico, conceitos e principios da agroecologia; Agricultura ecológica e agricultura familiar; Manejo ecológico do solo; As doenças infecciosas das lavouras dentro de uma visão agroecológica; Sistema integrado de produção agroecológica: uma experiência de pesquisa em agricultura orgânica; Homeopatia na produção de leite; Manejo de plantas infestantes em agroecologia; Comercialização e certificação de produtos ecològicos - a experiência da rede Ecovida de Agroecologia; Experiências em agroecologia no Sul do brasil; Experiência da FEPAGRO na pesquisa em agroecologia no Estado do Rio Grande do Sul; A importância da conscientização do consumidor no mercado de produtos orgânicos; A conversão de sistemas convencionais para sistemas orgânicos de produção no Brasil; A agroecologia em Mato Grosso do Sul.bitstream/item/38821/1/LV20022.pdfContém palestras apresentadas no I Seminário de Agroecologia de Mato Grosso do Sul, Campo Grande, MS, nov. 2002

Viabilidade econômica da produção agroecológica de hortaliças no Sistema de Produção Agroecológica Integrada e Sustentável (PAIS) em Juti, Mato Grosso do Sul.

Publicado também na: Revista Brasileira de Agroecologia, v. 6. n. 2, dez. 2011

Mercury's low‐degree geoid and topography controlled by insolation‐driven elastic deformation

©2015. American Geophysical UnionMercury experiences an uneven insolation that leads to significant latitudinal and longitudinal variations of its surface temperature. These variations, which are predominantly of spherical harmonic degrees 2 and 4, propagate to depth, imposing a long‐wavelength thermal perturbation throughout the mantle. We computed the accompanying density distribution and used it to calculate the mechanical and gravitational response of a spherical elastic shell overlying a quasi‐hydrostatic mantle. We then compared the resulting geoid and surface deformation at degrees 2 and 4 with Mercury's geoid and topography derived from the MErcury, Surface, Space ENvironment, GEochemistry, and Ranging spacecraft. More than 95% of the data can be accounted for if the thickness of the elastic lithosphere were between 110 and 180 km when the thermal anomaly was imposed. The obtained elastic thickness implies that Mercury became locked into its present 3:2 spin orbit resonance later than about 1 Gyr after planetary formation

Contrasting multi-taxa diversity patterns between abandoned and non-intensively managed forests in the southern Dolomites

The abandonment of silvicultural activities can lead to changes in species richness and composition of biological communities, when compared to those found in managed forests. The aim of this study was to compare the multi-taxonomical diversity of two mature silver fir-beech-spruce forests in the southern Dolomites (Italy), corresponding to the European Union habitat type 9130. The two sites share similar ecological and structural characteristics, but differ in their recent management histories. In the last 50 years, one site underwent non-intensive management, while the other was left unmanaged and was included in a forest reserve. The species richness and composition of eight taxa were surveyed in the two sites between 2009 and 2011. The difference in mean species richness between the two forest management types was tested through permutation tests, while differences in species composition were tested by principal coordinates analysis and the permutational multivariate analysis of variance. Mean species richness of soil macrofungi, deadwood lichens, bark beetles, and longhorn beetles were significantly higher in the abandoned than in the non-intensively managed forests. Deadwood fungi and epiphytic lichens did not differ in mean species richness between the two study sites, while mean species richness of ground beetles and birds were higher in the non-intensively managed than in the abandoned forest. Significant differences in species composition between the two sites were found for all the taxa, except for longhorn beetles. These results indicate that improving forest landscape heterogeneity through the creation of a mosaic of abandoned and extensively managed forests should better fulfill the requirements of ecologically different taxa

Densidade e volume total de poros do solo cultivado com adubos verdes perenes consorciados com a bananeira em um sistema sob transição agroecológica em Mato Grosso do Sul.

bitstream/item/68859/1/041-carneiro-densidade.pdfPublicado também no Cadernos de Agroecologia, v. 7, n.2, 2012

Nível de adoção de boas práticas em sistemas de produção sob transição agroecológica no Sul de Mato Grosso do Sul.

bitstream/item/66257/1/31295.pdfOrganizado por: Alberto Feiden, Milton Parron Padovan, Adalgiza Inês Campolim, Aurélio Vinícius Borsato, Ivo de Sá Motta, João Batista Catto, Tércio Jacques Fehlauer