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Inventario de Gases de Efecto Invernadero del Sector transporte de la Provincia de Chimborazo. Año base 2018
(Escuela Superior Politécnica de Chimborazo, 2021-11-12)
The aim of this research was to implement an inventory of greenhouse gases in the transportation sector of Chimborazo province, based on the information obtained during 2018 and through the use of the emissions standard ...
The impact of economic growth, trade openness and manufacturing on CO2 emissions in India: an autoregressive distributive lag (ARDL) bounds test approach
(Universidad ESAN. ESAN EdicionesPE, 2021-12-19)
Purpose. The purpose of this study is to examine the impact of economic growth, trade openness and manufacturing on CO2 emissions in India. Design/methodology/approach. The study employed autoregressive distributive lag ...
1.5 mu m emission and infrared-to-visible frequency upconversion in Er+3/Yb+3-doped phosphoniobate glasses
(Elsevier B.V., 2006-09-15)
Sodium phosphoniobate glasses with the composition (mol%) 75NaPO(3)-25Nb(2)O(5) and containing 2 mol% Yb3+ and x mol% Er3+ (0.01 <= x <= 2) were prepared using the conventional melting/casting process. Er3+ emission at 1.5 ...
1.5 mu m emission and infrared-to-visible frequency upconversion in Er+3/Yb+3-doped phosphoniobate glasses
(Elsevier B.V., 2006-09-15)
Sodium phosphoniobate glasses with the composition (mol%) 75NaPO(3)-25Nb(2)O(5) and containing 2 mol% Yb3+ and x mol% Er3+ (0.01 <= x <= 2) were prepared using the conventional melting/casting process. Er3+ emission at 1.5 ...
Impact of Grazing Intensity and Seasons on Greenhouse Gas Emissions in Tropical Grassland
(2017-06-01)
Greenhouse gases (GHG) can be affected by grazing intensity, soil, and climate variables. This study aimed at assessing GHG emissions from a tropical pasture of Brazil to evaluate (i) how the grazing intensity affects the ...
Optical and spectroscopic characterization of Er3+-Yb3+ co-doped tellurite glasses and fibers
(Elsevier Science BvAmsterdamHolanda, 2014)
Comparative carbon emission assessments of recycled and natural aggregate concrete: Environmental influence of cement content
(ElsevierNL, 2021)
This work examines the environmental and geochemical impact of recycled aggregate concrete production with properties representative for structural applications. The environmental influence of cement content, aggregate ...
DIODE-LASER AND FOURIER-TRANSFORM SPECTROSCOPY OF THE (CH3OH)-C-13 C-O STRETCHING MODE
(Plenum Publ CorpNew York, 1994)
Black and green pigments based on chromium-cobalt spinels
(Elsevier B.V. Sa, 2011-09-15)
Chromium and cobalt oxides are widely used in the manufacture of industrial pigments. In this work, the Co(Co(2-x)Cr(x))O(4) powders with different chromium concentrations (x = 0, 0.25 and 1) were synthesized by the polymeric ...
Soil carbon dioxide and nitrous oxide emissions during the growing season from temperate maize‐soybean intercrops
(Wiley, 2012-06)
The Argentine Pampa is one of the major global regions for the production of maize (Zea mays L.) and soybean (Glycine max L. [Merr.]), but intense management practices have led to soil degradation and amplified greenhouse‐gas ...