Results 1 to 10 of about 86 (78)
Physical Characterization and Effect of Effective Surface Area on the Sensing Properties of Tin Dioxide Thin Solid Films in a Propane Atmosphere [PDF]
Sensors, 2013 The physical properties and the effect of effective surface area (ESA) on the sensing properties of tin dioxide [SnO2] thin films in air and propane [C3H8] atmosphere as a function of operating temperature and gas concentration have been studied in this ...
Heberto Gómez-Pozos +4 more
doaj +2 more sources
CO Gas Sensing Properties of Pure and Cu-Incorporated SnO2 Nanoparticles: A Study of Cu-Induced Modifications [PDF]
Sensors, 2016 Pure and copper (Cu)-incorporated tin oxide (SnO2) pellet gas sensors with characteristics provoking gas sensitivity were fabricated and used for measuring carbon monoxide (CO) atmospheres.
Tangirala Venkata Krishna Karthik +3 more
doaj +2 more sources
Synthesis of Anion Exchange Membranes Containing PVDF/PES and Either PEI or Fumion® [PDF]
Membranes, 2022 In this work, the preparation of dense blended membranes, from blends of poly(vinylidene fluoride) (PVDF), poly(ether sulfone) (PES) and polyethyleneimine (PEI) or Fumion®, with possible applications in alkaline fuel cell (AEMFC) is reported. The blended
Luis Javier Salazar-Gastelum +7 more
doaj +2 more sources
Nanotechnology Applications in Ground Heat Exchanger Pipes: A Review
Applied Sciences, 2022 The use of Ground Source Heat Pumps (GSHPs) has grown exponentially around the world over recent decades. The GSHP represents an alternative device to electric heating systems and oil boilers.
Fernando Rivas-Cruz +3 more
doaj +1 more source
Applied Sciences, 2022 Electric power distribution networks face increasing factors for power-quality (PQ) deterioration, such as distributed, renewable-energy generation units and countless high-end electronic devices loaded as controllers or in standalone mode. Consequently,
Juan J. Flores +5 more
doaj +1 more source
Revista Científica de Estudios Sociales, 2023 La Ley 272, Ley de la Industria Eléctrica, despublificó a la generación eléctrica, anteriormente reservada al Estado en su condición de servicio público, convirtiéndola en una actividad privada y, por tanto, sometiéndola a la dinámica del mercado.
Carlos Ricardo Izaba Ruíz
doaj +1 more source
Advances in Materials Science and Engineering, Volume 2016, Issue 1, 2016., 2016 Superalloys are a group of alloys based on nickel, iron, or cobalt, which are used to operate at high temperatures (T > 540°C) and in situations involving very high stresses like in gas turbines, particularly in the manufacture of blades, nozzles, combustors, and discs. Besides keeping its high resistance to temperatures which may approach 85% of their
A. Luna Ramírez +5 more
wiley +1 more source
Costos y beneficios de la reforma en el subsector eléctrico
Ciencia y Sociedad, 1995 Este trabajo contiene un análisis de las principales implicaciones de la implantación de la reforma en el subsector eléctrico. Después de discutir las relaciones históricas entre demanda, oferta y costos del suministro de la energía eléctrica, se pasa al
Rolando Reyes
doaj +1 more source
International Journal of Polymer Science, Volume 2016, Issue 1, 2016., 2016 The crystallization of nonsteroidal anti‐inflammatory drug [2‐(4‐isobutyl‐phenyl) propionic acid] ibuprofen (IBP) on a hydroxypropyl cellulose (HPC) and polyacrylamide (PAAm) gel was studied as well as the release kinetics of the drug. The IBP was crystallized on the gel surface of HPC/PAAm.
Claudia Alicia Castillo-Miranda +8 more
wiley +1 more source
Effect of Ag Addition on the Electrochemical Performance of Cu10Al in Artificial Saliva
Bioinorganic Chemistry and Applications, Volume 2016, Issue 1, 2016., 2016 In this work we proposed to evaluate the corrosion resistance of four different alloys by electrochemical techniques, a binary alloy Cu10Al, and three ternary alloys Cu10Al‐xAg (x = 5, 10, and 15 wt.%) to be used like biomaterials in dental application. Biomaterials proposed were tested in artificial saliva at 37°C for 48 h. In addition, pure metals Cu,
R. J. Salgado-Salgado +7 more
wiley +1 more source