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Development of Junction Elements from Study of the Bionics

Journal of Bionic Engineering 2007年第1期4卷 41-46页

作者： Wilson Kindlein Junior Luis Henrique Alves Cndido André Canal Marques Sandra Souza dos Santos maurício da silva viegas Laboratory of Design and Material Selection-LdSM-Materials Department (DEMAT) School of Engineering–EE Federal University of Rio Grande do Sul-Brazil-UFRGS Brazil

The applications of bionic methodology developed by the Laboratory of Design and Material Selection as basis in the creation of junction elements were demonstrated. These elements favor the application of Ecodesign in reference to the effectiveness of product dismount aiming the reduction of ambient impact in all its phases of use. The creation, the development and the confection of new junction elements were described, and case studies of new products developed specifically with this purpose were presented.

关键词： bionics Ecodesign junction elements

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Drainage and Preliminary Risk of Flooding in an Urban Zone of Eastern Amazon

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Journal of Geoscience and Environment Protection 2023年第5期11卷 1-16页

作者： Taís silva Sousa Clezio Júnior Teixeira viegas Helenilza Ferreira Albuquerque Cunha Alan Cavalcanti da Cunha Graduate Program in Environmental Sciences Federal University of Amapá Macapá Brazil Graduate Program in Tropical Biodiversity Federal University of Amapá Macapá Brazil Graduate Program in Biotechnology Federal University of Amapá Macapá Brazil

Drainage system is a poorly investigated basic sanitation and urban planning issue in the Amazon, which is often related to flooding processes and public health. The aim of the present research is to correlate Preliminary Risk of Flooding (PRF) to independent variables, based on the following methodology: 1) identifying and classifying risk areas by using the Geographic Information System (GIS) and 2) statistically correlating risk to sanitary and environmental variables. Results have shown that preliminary risk is correlated to, at least, seven sanitary and environmental variables, depending on flood influence area;and there are significant correlations observed in the rainy season interval [probability or significance (p) 0.05]. In conclusion, PRF is higher in the rainy season, but it is spatially influenced by the elevation of terrain, number of flooding points, drainage typology and Environmental Salubrity Index (ESI) of neighborhoods, which directly affect the water quality in nearby groundwater wells (Total Coliforms, nitrate (NO3) and ammonia (NH3)). However, this influence can eventually significantly change in the dry season.

关键词： Drainage System Environmental Salubrity Index Groundwater GIS

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Strategy Analysis of the Biggest World Supermarkets With Open Capital and Which Act in the Brazilian Market

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Chinese Business Review 2014年第5期13卷 333-346页

作者： Thyago de Melo Duarte Borges Joao Agra Neto Luciano Queiroz de Araujo Junior Jamerson viegas Queiroz Fernanda Cristina Barbosa Queiroz Faimara do Rocio Strauh Nilton Cesar Lima Christian Luiz da silva Universidade Federal do Rio Grande do Norte (UFRN) Natal Brazil Universidade Tecnologica Federal do Parana (UTFPR) Curitiba Brazil

In view of the growth of retail, as well as the performance of large multinational supermarket branch in the Brazilian market, the purpose of this article is an analysis of the strategies of Casino, Carrefour, Walmart and open in the country capital, analyzing their operational, financial indicators socio-environmental initiatives. In order to achieve the main objective of this work, the construction of a method that validates this search was necessary. The main strategies and indicators of the three groups in four areas： corporate strategy, operational areo, financial areo, social and environmental issue, were analyzed. Study of qualitative, descriptive and exploratory character is realised through the importance of these three companies worldwide. As conclusions, it has been the expansion strategies that geared toward developing countries, adherence to new store formats, specializing in electronic commerce, as well as the superiority of Walmart （net sales） and Casino （Profitability）.

关键词： Strategy Supermarkets Wal-Mart Carrefour Casino

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Bio-Oil Extracted of Wet Biomass of the Microalga <i>Monoraphidium</i>sp. for Production of Renewable Hydrocarbons

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Journal of Power and Energy Engineering 2019年第1期7卷 80-90页

作者： Yordanka R. Cruz Gisel Ch. Díaz Viviane de S. Borges Andreina Z. F. Leonett René G. Carliz Vinicius Rossa Vitor M. E. S. silva Carolina Vieira viegas Donato A. G. Aranda Luciano B. Oliveira GREETEC Laboratory Federal University of Rio de Janeiro (UFRJ) Rio de Janeiro Brazil GCAT Laboratory Federal University of Uberladia (UFU) Rio de Janeiro Brazil Research Company Energetic (EPE) Rio de Janeiro Brazil

Renewable hydrocarbons refer to fuels consisting of hydrocarbons of 10 to 20 carbon atoms, produced from biomass, and free of oxygen. Hydrocracking, hydrodeoxygenation and hydrotreatment processes for the production of renewable hydrocarbons are described in the literature. Microalgae have been targeted in recent years to synthesize biomass that can be used in the production of biofuels, such as renewable hydrocarbons, biodiesel or ethanol second generation. In this context the lineage Monoraphidium sp. was selected from previous ecophysiological studies and its potential to produce lipids to develop this research related with the extraction of the bio-oil of the wet biomass of Monoraphidium sp. through heat treatment. Consecutively the bio-oil was used as raw material for the production of hydrocarbons through hydrocracking and hydrodeoxygenation processes (HDO) as: decarbonylation, decarboxylation, dehydratation, with in situ production of hydrogen from liquid-phase reforming of glycerol. The reactions were carried out under two different temperature conditions, 350°C and 300°C, respectively, for 1 h and using ruthenium alumina catalyst (Ru/Al2O3). The results showed the bio-oil processing route at a temperature of 350°C promising for the production of hydrocarbons achieving a conversion of 81.54%.

关键词： Renewable Hydrocarbons Hydrotreatment Bio-Oil Monoraphidium sp.

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