Results 81 to 90 of about 90,059 (202)

IGBT Traction Convertor of Electric Locomotives for Altiplano

机车电传动, 2012
Main technic parameters, power circuit and it’s converter module characteristics of IGBT traction convertor of electric locomotives for altiplano were introduced. The adaptability design for altiplano was presented such as the working principle of heater,
FAN Rong-hui, QIN Fang-fang, GUO Jun-bo, LI Hua   +3 more
doaj  

A MAGNETOTELLURIC SURVEY IN THE NORTHERN BOLIVIAN ALTIPLANO

Geophysical Research Letters, 1991
Magnetotelluric (MT) measurements were performed at 9 sites on the northern Bolivian Altiplano in a attempt to determine thicknesses of the Cainozoic sedimentary infill and to characterize the underlying crust. At some of the sites the MT soundings show complications due to static shift effects caused by local, surficial heterogeneities.
/Ritz, Michel, /Bondoux, Francis, /Hérail, Gérard, /Sempéré, Thierry   +3 more
openaire   +2 more sources

The Southern Altiplano of Bolivia [PDF]

, 2015
Quinoa has been a staple food for Andean populations for millennia. Today, it is a much-appreciated product on the international health-food, organic and fair-trade food markets. Quinoa producers in the southern Altiplano of Bolivia initiated this change approximately 40 years ago.
Alvarez-Flores, Ricardo, Bommel, Pierre, Bourliaud, Jean, Chevarria Lazo, Marco, Cortes, Geneviève, Cruz, Pablo, Del Castillo, C., Gasselin, Pierre, Joffre, Richard, Leger, Francois, Nina Laura, Juan Peter, Rambal, Serge, Rivière, Gilles, Tichit, Muriel, Tourrand, Jean-François, Vassas Toral, Anaïs, Vieira Pak, Manuela   +16 more
openaire   +3 more sources

Factores de pérdida de conocimientos de uso de los indicadores climáticos locales en comunidades del Altiplano Norte y Central

Revista de Investigación e Innovación Agropecuaria y de Recursos Naturales, 2014
En los últimos años se ha manifestado un fuerte interés en la recuperación de los conocimientos locales de agricultores de los Andes, que, en muchas zonas mantienen y utilizan conocimientos para pronosticar el clima en el corto y mediano plazo con el fin
Jere L. Gilles, Edwin E. Yucra Sea, Magali García Cárdenas, Rogelio Quispe, Gladys Yana, Héctor Fernández   +5 more
doaj  

Una mirada al Altiplano Potosino

TEPEXI Boletín Científico de la Escuela Superior Tepeji del Río, 2018
Este trabajo pretende de dar varios significados a los movimientos históricos sucedidos desde el siglo XVI al XXI en el área geográfica conocida como El Salado, considerando su historia entre los distintos polos, una historia análoga a muchos de los pueblos y haciendas que se fueron fundando en este periodo cronológico, que comenzaban siendo pequeñas ...
Rojas García, Jesús, García Vargas, Ma. de Lourdes E., Gabriela Sánchez, Magda Trujillo   +2 more
openaire   +2 more sources

Water for Life: A Journey to Nicaragua Exploring Sustainable Development [PDF]

, 2009
When I first arrived in the Peruvian Altiplano as a Maryknoll missioner 15 years ago, I was struck by the presence of a beautifully engineered system of irrigation canals extending through several communities. Engineers love to solve problems, and seeing
Maurer, Edwin P.
core   +1 more source

Psychological factors associated with suicidal ideation in high school adolescentes

O Mundo da Saúde
Suicide is a major public health issue that is often overlooked, surrounded by stigma, myths, and taboos. The aim of this article was to identify psychological factors, such as depression, stress, and anxiety, that predict suicidal ideation in high ...
Heber Nehemias Chui Betancur, Vidnay Noel Valero Ancco, Lily Maribel Trigos Sánchez, Yudy Yaneth Tapia Centellas, Katia Perez Argollo, Teofilo Yucra Quispe, Edgar Darío Callohuanca Avalos, Cesar Augusto Achata Cortez   +7 more
doaj   +1 more source

LANDSAT (ERTS) used as a basis for geological volcanological mapping in the central Andes [PDF]

LANDSAT images of the central Andes (N-Chile, W-Bolivia) were effectively used for volcanological mapping of an area about 160,000 km. The map shown exhibits more and better details than the older small scale geological maps of that area. Even on a scale
Brockman, C. E., Kussmaul, S.
core   +1 more source

Thermo-insulating panels based on Stipa Ichu, cellulose and gypsum for high Andean housing claddings

ESTOA: Revista de la Facultad de Arquitectura y Urbanismo de la Universidad de Cuenca
The manufacture of construction materials with conventional inputs generates negative impacts on the environment and contributes significantly to energy consumption. Therefore, facing this problem requires new alternatives.
Leyda Cinthia Aza-Medina, Hugo Anselmo Ccama Condori, Diana Karen Pari-Quispe, Abrahan Henry Torres-Benavides, Juan Anthony Humalla-Quispe   +4 more
doaj   +1 more source

Fibrous concentrate on the productive and reproductive performance of guinea pigs in family -commercial breeding in the Andes

Revista de Ciências Agroveterinárias
Andean guinea pig traditionally fed with forages presents low productive and reproductive performance. The aim of this study was to evaluate the effects of fibrous concentrate on the reproductive and productive performance of guinea pigs.
Bernardo Roque Huanca, Miguel Alan Churata Higuera, Regina Sumari Machaca, José Eduardo Ramírez Aruquipa, Heber Nehemias Chui Betancur   +4 more
doaj   +1 more source