Results 21 to 30 of about 30,071 (160)

DFT Study of Intrinsic and Induced p-type Conductivity of ZnO Material [PDF]

open access: yesЖурнал нано- та електронної фізики, 2017
Density functional theory and generalized gradient approximation including a Hubbard-like term was used in the present work to analyse p-type electrical conductivity as well as the switch of n-type  p-type conductivity in the ZnO materials.
F. Marcillo   +2 more
doaj   +1 more source

Efecto de las sales fundidas en la termofluencia del acero inoxidable tipo 304

open access: yesRevista de Metalurgia, 1995
Los problemas causados tanto por la corrosión por sales fundidas, así como por la termofluencia en los tubos de los sobrecalentadores y recalentadores de una planta de potencia que usa combustibles fósiles, reducen su vida prevista en diseño.
G. González-Rodríguez   +3 more
doaj   +1 more source

Comparative Study of the Effects of Aqueous Micellar Media Formed by Amphiphilic Ionic Liquids and Conventional Surfactants on Reactions of Synthetic Interest

open access: yesChemistry Proceedings, 2021
For polar Diels–Alder (DA) reactions, one of the most relevant aspects is its dependence on the reaction media; thus, in this work, the objective is to analyze the effect of aqueous micellar systems on the synthesis of compounds of biological interest ...
Jésica B. Soffietti   +2 more
doaj   +1 more source

Alternatives to free molecular halogens as chemoselective reactants: Catalysis of organic reactions with reusable complexes of halogen metal salts [PDF]

open access: yes, 2012
Organometallic complexes of halogen metallic salts have been used as catalysts in different organic reactions, mainly the oxidation of organic compounds. Their use has not only allowed the reduction of the amounts of catalyst (since they can be reused)
Rossi, Laura Isabel   +1 more
core   +1 more source

ACEOS – The additive and constitutive equation of state in the n-alkane homologous series

open access: yesChemical Thermodynamics and Thermal Analysis, 2022
The critical volumeVc, the relation between the critical temperature and the pressure Tc / Pc and the product PcVc2 depend linearly on the number of carbons in a homologous series as a consequence of the theory of corresponding states. This suggests that
Miguel Gonzalo Arenas-Quevedo   +2 more
doaj   +1 more source

Environmental hyperosmolality regulates phospholipid biosynthesis in the renal epithelial cell line MDCK [PDF]

open access: yes, 2013
Hyperosmolality is a key signal for renal physiology. On the one hand, it contributes to the differentiation of renal medullary structures and to the development of the urinary concentrating mechanism. On the other, it is a stress factor.
Casali, Cecilia Irene   +3 more
core   +2 more sources

Simple Ion Transfer at Liquid|Liquid Interfaces

open access: yesInternational Journal of Electrochemistry, 2012
The main aspects related to the charge transfer reactions occurring at the interface between two immiscible electrolyte solutions (ITIES) are described. The particular topics to be discussed involve simple ion transfer.
L. J. Sanchez Vallejo   +3 more
doaj   +1 more source

Modelling of removal of surfactants from liquid solutions in a bubble column

open access: yesResults in Engineering, 2022
This paper proposes a theoretical model for the separation of a surfactant from water in a bubble column. The proposed model includes both mass balance and adsorption thermodynamics of surfactants on bubble surfaces in the liquid solution (e.i.
Arturo A. García-Figueroa   +4 more
doaj   +1 more source

Prototipo IOT para el sector agrícola

open access: yesTecnología en Marcha
Este artículo contempla conceptos y aspectos importantes para tener en cuenta en el diseño y desarrollo de un prototipo IoT para el sector agrícola soportado por sensores de tecnología M5STACK que midan variables fisicoquímicas presentes en un cultivo ...
Jaime Malqui Cabrera-Medina   +3 more
doaj   +1 more source

Communication: UV photoionization of cytosine catalyzed by Ag+ [PDF]

open access: yes, 2015
The photo-induced damages of DNA in interaction with metal cations, which are found in various environments, still remain to be characterized. In this paper, we show how the complexation of a DNA base (cytosine (Cyt)) with a metal cation (Ag+) changes ...
Bertran J.   +8 more
core   +3 more sources

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