Results 11 to 20 of about 31,113 (154)

An Empirical Correction Model for Remote Sensing Data of Global Horizontal Irradiance in High-Cloudiness-Index Locations

Remote Sensing, 2022
Facing the energy transition, solar energy, whether thermal or electric, is currently one of the most viable alternatives, due to its technological maturity and its ease of operation and maintenance compared to other renewable energies.
Martín Muñoz-Salcedo, Fernando Peci-López, Francisco Táboas   +2 more
doaj   +1 more source

Study of the solubility of xonotlite

ce/papers, Volume 6, Issue 2, Page 238-245, September 2023., 2023
Abstract Xonotlite (Ca6Si6O17(OH)2) is a hydrated crystalline calcium silicate with CaO/SiO2 = 1, which forms under hy‐drothermal conditions at temperature above ∼100°C. It has good thermal stability, it dehydrates to wollastonite only at 770 to 800°C and shows a good resistance to high pressures.
Serena Mingione, Barbara Lothenbach, Frank Winnefeld, Ann Opsommer   +3 more
wiley   +1 more source

Insight into the Role of Guanidinium and Cesium in Triple Cation Lead Halide Perovskites

Solar RRL, Volume 5, Issue 12, December 2021., 2021
Partial replacement (5–15%) of methylammonium (MA) in the MAPbI3 perovskite by cesium or guanidinium (Gua) cations is demonstrated by X‐ray diffraction, revealing shrinkage or expansion of the unit cell upon Cs or Gua incorporation, respectively. The power conversion efficiency improves from an average value of 18.6% for the MAPbI3 to a value of 20.0 ...
Susana Ramos-Terrón, José Francisco Illanes, Diego Bohoyo-Gil, Luis Camacho, Gustavo de Miguel   +4 more
wiley   +1 more source

Size‐Based Cationic Molecular Sieving through Solid‐State Nanochannels

Advanced Materials Interfaces, Volume 8, Issue 6, March 23, 2021., 2021
The molecular sieving behavior of a soft‐etched nanoporous polyimide membrane using cationic alkali metal‐crown ether complexes and organic cations ranging in size from ammonium to tetraalkylammonium is demonstrated. The experimental data shows that nanochannels only allow the permeation of small cationic species, while excluding the larger ones ...
Mubarak Ali, Saima Nasir, Kristina Froehlich, Patricio Ramirez, Javier Cervera, Salvador Mafe, Wolfgang Ensinger   +6 more
wiley   +1 more source

Reductive deactivation of some s-triazine herbicides: Prometryne, desmetryne and terbutryne [PDF]

Journal of the Serbian Chemical Society, 2002
The electrochemical behaviour (DC and DPpolarography) of the methylthio-bis(alkylamino) s-triazine herbicides prometryne, desmetryne and terbutryne on mercury electrodes has been studied in the acidity range 2.25MH2SO4 to pH 6.5.
Galvin Rrafael Marin, Mellado Jose Miguel Rodriguez, Higuera Maria Jose   +2 more
doaj   +1 more source

CARACTERIZACIÓN TERMODINÁMICA DE UN RESERVORIO A ALTA PRESIÓN Y TEMPERATURA: CASO ESTUDIO LOTE 64

Revista Fuentes El Reventón Energético, 2015
X-ray Computed tomography (CT) is now widely used in the study of rocks due to allowing inspection of its internal structure of a non-destructive way and indirect quantification of some of their basic properties. This paper presents a methodology for the acquisition and interpretation of CT images on rocks and calculating their properties, mainly the ...
Andrés Felipe Ortiz Meneses, Edwar Hernando Herrera Otero, Josué Mauricio Plata Chaves, Nicolás Santos Santos   +3 more
openaire   +3 more sources

A PRODUÇÃO CIENTÍFICA NACIONAL EM PERIÓDICOS SOBRE O ENSINO DE TERMODINÂMICA

Revista Prática Docente, 2019
Os conceitos que estruturam a Termodinâmica, tais como, calor, temperatura, energia interna, trabalho e entropia são difíceis de serem abordados pois os estudantes de diferentes níveis educacionais possuem concepções espontâneas relacionadas a esses ...
Geilson Rodrigues da Silva, Nádia Cristina Guimarães Errobidart   +1 more
doaj   +1 more source

ABORDAGENS TERMODINÂMICAS: UMA ANÁLISE DAS LEIS E DOS PRINCIPAIS CONCEITOS EM LIVROS DIDÁTICOS

Revista Binacional Brasil - Argentina, 2020
O estudo e o entendimento da termodinâmica exige um criterioso processo de assimilação de leis e um conjunto bem estruturado de conceitos teóricos. Ao longo desse trabalho, vamos apresentar uma explanação dos principais conceitos envolvidos no estudo ...
Carlos Takiya, Gabriel Fonseca Guimarães, Ian Lima Santana, Luan Santos Lemos   +3 more
doaj   +1 more source

Dissection of enzymatic kinetics and elucidation of detailed parameters based on the Michaelis‐Menten model. Kinetic and thermodynamic connections

Engineering Reports, Volume 2, Issue 9, September 2020., 2020
A new approach for analyzing the simple Michaelis‐Menten original data is described using a computational/numerical integration approach yielding a complete Michaelis‐Menten solution. The system is free of steady‐state restrictions/enzyme‐substrate ratio limitations, and the method yields the Michaelis‐Menten kinetic constants k+1, k‐1 and k2 values ...
Carlos F. S. Bonafe, Daniel F. de Lima Neto, César A. P. Aguirre, Silvio A. B. Vieira de Melo, Wallisson Dos S. Lima, Jose A. C. Bispo   +5 more
wiley   +1 more source

Donde la termodinámica y las proteínas se encuentran

Educación Química, 2018
Este es un ejemplo de cómo utilizar a las proteínas en la enseñanza de la termodinámica y, a la vez, de cómo emplear la termodinámica para estudiar el comportamiento fisicoquímico de las proteínas.
Sergio Romero-Romero, Alejandro Fernández-Velasco, Miguel Costas   +2 more
doaj   +1 more source