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Mostrando ítems 11-20 de 737
Are real options a real option for real-world finance professionals? Case study: the application of real options to evaluate investment projects in the latin american oil and gas field services industry
(2012-12-13)
Brazil and other emerging markets will continue to present many investment opportunities in the coming years. Finance professionals who manage the company’s capital budgeting processes will face challenges. Specific ...
Analytical methods applied for ozone gas detection: A review
(2022-04-01)
Ground-level ozone has been increasing worldwide, mainly due to the high anthropogenic emissions of NOx and VOCs. In addition, ozone generators are sold as water and air purifiers, and are also used to assist in decontaminating ...
Real-Time and Simultaneous Monitoring of NO, NO 2 , and N 2 O Using Substrate–Integrated Hollow Waveguides Coupled to a Compact Fourier Transform Infrared (FT-IR) Spectrometer
(2019-01-01)
Nitrogen-based fertilizers have been used in modern agricultural activities resulting in a relevant emission source of nitrogen gases into the atmosphere, mainly nitric oxide (NO), nitrogen dioxide (NO 2 ), and nitrous ...
Delineamento de metodologias de gestão ambiental para execução de teste hidrostático em dutos de gás natural
(Universidade Federal de Santa MariaBREngenharia de ProduçãoUFSMPrograma de Pós-Graduação em Engenharia de Produção, 2004-04-30)
The present dissertation evaluates distinct scenarios related to the Brazilian Energetic Policy and the contribution of Natural Gas to the existing Energetic Matrix. Many discussions are presented respecting environmental ...
Análisis del efecto de alta temperatura en el flujo de tubo de choque
(Departamento Mecánica, 2016-11-29)
Un tubo de choque es una herramienta de laboratorio ampliamente utilizado en la industria aeroespacial, aeronáutica, estudios de dinámica de gas, procesos físico-químicos en gases de alta temperatura, estudio de explosiones, ...
Avaliação da influência da temperatura de pré-aquecimento aliado ao ensaio de ciclagem térmica em revestimentos de barreira térmica
(Universidade Tecnológica Federal do ParanáPonta GrossaBrasilDepartamento Acadêmico de MecânicaEngenharia MecânicaUTFPR, 2017-06-26)
Around the world the use of gas turbines for energy generation has been growing in recent years. Nowadays, the search for greater efficiency of these machines is carried out, which is mainly aimed at fuel economy, and as ...
Simulação computacional de uma válvula loop-seal acoplada a leito fluidizado circulante
(Universidade Tecnológica Federal do ParanáPonta GrossaBrasilDepartamento Acadêmico de Engenharia QuímicaEngenharia QuímicaUTFPR, 2019-06-26)
In this work, computational simulations of the gas-solid flow hydrodynamics inside a loop-seal valve coupled to a circulating fluidized bed system were carried out in order to compare numerical results with experimental ...
Analysis of Steroids using Solid Phase Microextraction-Gas Chromatography-Mass Spectrometry-Mass Spectrometry (SPME-GC-MS-MS)
(2014)
Direct immersion SPME-GC-MS-MS was used for the analysis of steroids in water at part-per-trillion(ppt) and lower concentrations. The method was validated and extended to real sample analysis. The method were linear from ...
Optimization analysis for hydro pumped storage and natural gas accumulation technologies in the Argentine Energy System
(Elsevier Science, 2020-10)
Globally, there is a growing interest in energy storage systems technologies due to the effects they have on electric power systems. In this field, this paper presents a novel mathematical model that assets an objective ...
Modelagem mecanicista da transferência de calor no escoamento bifásico líquido-gás em golfadas considerando o efeito Joule-Thomson
(Universidade Tecnológica Federal do ParanáCuritibaBrasilGraduação em Engenharia MecânicaUTFPR, 2016-06-20)
The gas-liquid two-phase slug flow is largely found in the industry, especially in oil and gas production operations. The major part of the Brazilian oil production is offshore, where the cooling process of the oil-gas ...