138 resultados para Hornos


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96 hojas : ilustraciones, fotografías a color.

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22 hojas : ilustraciones, fotografías a color

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7 hojas : fotografías a color.

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Tesis (Maestría en Ciencias con Especialidad en Ingeniería Cerámica) U.A.N.L.

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tesis ( Maestro en Ciencias de la Ingeniería Mecánica con Especialidad en Materiales ) - U.A.N.L, 2002

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Tesis (Maestría en Ciencias de la Ingeniería Mecánica con Especialidad en Materiales) UANL, 2013.

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Tesis (Doctor en Ciencias de la Ingeniería Mecánica con Especialidad en Materiales) UANL, 2009.

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Technical and economic feasibility of using natural gas as a non-polluting energy source was studied. Conversion of electric ovens to gas-fired ovens for the preparation of aluminum plates for laminations was used as an example of this application. Four cases were evaluated for the use of heat derived from residual gases following combustion of the natural gas. Additionally, two possibilities are included for the use of systems of co-generation; one using an internal combustion engine, and second using a gas turbine. Results suggested that it was technically and economically feasible to convert the electric ovens considered to natural gas-operated ovens.

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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

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The investigator conducted an action-oriented investigation of pregnancy and birth among the women of Mesa los Hornos, an urban squatter slum in Mexico City. Three aims guided the project: (1) To obtain information for improving prenatal and maternity service utilization; (2) To examine the utility of rapid ethnographic and epidemiologic assessment methodologies; (3) To cultivate community involvement in health development.^ Viewing service utilization as a culturally-bound decision, the study included a qualitative phase to explore women's cognition of pregnancy and birth, their perceived needs during pregnancy, and their criteria of service acceptability. A probability-based community survey delineated parameters of service utilization and pregnancy health events, and probed reasons for decisions to use medical services, lay midwives, or other sources of prenatal and labor and delivery assistance. Qualitative survey of service providers at relevant clinics, hospitals, and practices contributed information on service availability and access, and on coordination among private, social security, and public assistance health service sectors. The ethnographic approach to exploring the rationale for use or non-use of services provided a necessary complement to conventional barrier-based assessment, to inform planning of culturally appropriate interventions.^ Information collection and interpretation was conducted under the aegis of an advisory committee of community residents and service agency representatives; the residents' committee formulated recommendations for action based on findings, and forwarded the mandate to governmental social and urban development offices. Recommendations were designed to inform and develop community participation in health care decision-making.^ Rapid research methods are powerful tools for achieving community-based empowerment toward investigation and resolution of local health problems. But while ethnography works well in synergy with quantitative assessment approaches to strengthen the validity and richness of short-term field work, the author strongly urges caution in application of Rapid Ethnographic Assessments. An ethnographic sensibility is essential to the research enterprise for the development of an active and cooperative community base, the design and use of quantitative instruments, the appropriate use of qualitative techniques, and the interpretation of culturally-oriented information. However, prescribed and standardized Rapid Ethnographic Assessment techniques are counter-productive if used as research short-cuts before locale- and subject-specific cultural understanding is achieved. ^

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El presente trabajo aborda un estudio de caso en el que se describen los modos de organización y participación territorial de las Brigadas Solidarias Hugo Chávez del Barrio de Los Hornos de la ciudad de La Plata, conformadas en el marco de la trágica inundación del 2 de abril de 2013 en la ciudad de La Plata. Se describen y analizan las prácticas y las representaciones asociadas a la participación y a la intervención comunitarias. Se interpelan estos modos desde una mirada sobre la ciudad y el territorio, intentando identificar modos de participación social y gobernanza. Para ello se describirán las trayectorias de los actores sociales que integran las Brigadas, sus itinerarios, recursos, motivaciones; se reconstruye el proceso de organización en la emergencia (abril 2013) y en los meses posteriores, hasta diciembre de 2013. El objetivo será abonar a la ampliación conceptual en los estudios sobre participación comunitaria