Nitrogen Injection
Mostrando 1-12 de 78 artigos, teses e dissertações.
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1. Comparison between barley malt protein quantification methods
Abstract Brazil imports about 60% of all the malt used by the brewing industry which is spread throughout the country. Even though it is an agricultural country, only a small portion of the barley production has the characteristics to produce barley malt for brewing. Seeking supply to the ever-growing demand and reducing the dependency on other countries and
Food Sci. Technol. Publicado em: 2021-06
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2. Reduction of Aqueous Ag+ Steered by Electrochemical Plasma: Connecting the Bulk pH Variation with the Reaction Pathways for Hydrated Electrons
Reduction of silver cations followed by nanoparticle (Ag-NPs) synthesis is a model process to understand the reduction mechanism induced by a discharge over an aqueous surface, termed electrochemical plasma. This work aims at studying the silver reduction reaction steered by electrochemical plasma in the presence of other chemically active plasma-related int
J. Braz. Chem. Soc.. Publicado em: 23/05/2019
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3. Nitrous Oxide Emissions in a Wheat/Corn Succession Combining Dairy Slurry and Urea as Nitrogen Sources
ABSTRACT: The impact on nitrous oxide (N2O) emissions caused by combining dairy slurry (DS) and urea to supply crops with nitrogen (N) is still not well characterized. The main objective of this study was to compare the differences between N2O emissions in the cases of exclusive use of urea and the combined use of DS and urea as N sources to no-tillage wheat
Rev. Bras. Ciênc. Solo. Publicado em: 14/05/2018
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4. Slag Foaming Fundamentals - A Critical Assessment
Slag foaming is part of steelmaking process and could bring several benefits: it helps to save energy, improves productivity, enhances the refractory service life, decreases noise pollution and protects the bath from nitrogen incorporation. Unfortunately, slag foaming is a highly dynamic process that is difficult to control. There are factors that limit the
Mat. Res.. Publicado em: 02/03/2017
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5. Toll-like receptor 7 involves the injury in acute kidney ischemia/reperfusion of STZ-induced diabetic rats
ABSTRACT PURPOSE: To determine whether Toll-like receptor 7 (TLR7) is the potential targets of prevention or progression in the renal ischemia/reperfusion (I/R) injury of STZ-induced diabetic rats. METHODS: Thirty six Sprague-Dawley rats were randomly arranged to the nondiabetic (ND) or diabetic group (DM), with each group further divided into sham (no I/R
Acta Cir. Bras.. Publicado em: 2016-07
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6. Acute hyperglycemia prevents dexmedetomidine-induced preconditioning against renal ischemia-reperfusion injury
PURPOSE: To investigate the effects of acute hyperglycemia on dexmedetomidine-induced preconditioning against renal ischemia-reperfusion injury. METHODS: Sprague-Dawley rats were randomly arranged to the normoglycemic (NG) or hyperglycemic group (HG), with each group further divided into sham (no I/R injury), I/R (ischemia-reperfusion) and dex (given by dex
Acta Cir. Bras.. Publicado em: 2014-12
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7. Hydrodynamic Simulation of Gas - Particle Injection Into Molten Lead
A multiphase- hydrodynamic model was solved with the phase field method and the Cahn-Hilliard equation to simulate the behavior of particle injection with nitrogen as conveying gas through a submerged lance into a lead bath in two dimensions. The residence and mixing time were obtained for different operating parameters like gas flow rate, lance depth, and d
Mat. Res.. Publicado em: 01/07/2014
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8. Angiogenic effects of cryosurgery with liquid nitrogen on the normal skin of rats, through morphometric study
BACKGROUND:Cryosurgery is an efficient therapeutic technique used to treat benign and malignant cutaneous diseases. The primary active mechanism of cryosurgery is related to vascular effects on treated tissue. After a cryosurgical procedure, exuberant granulation tissue is formed at the injection site, probably as a result of angiogenic stimulation of the cr
An. Bras. Dermatol.. Publicado em: 2014-06
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9. Conus vexillum venom induces oxidative stress in Ehrlich's ascites carcinoma cells: an insight into the mechanism of induction
Background It is estimated that venoms of marine cone snails (genus Conus) contain more than 100,000 different small peptides with a wide range of pharmacological and biological actions. Some of these peptides were developed into potential therapeutic agents and as molecular tools to understand biological functions of nervous and cardiovascular systems. In
J. Venom. Anim. Toxins incl. Trop. Dis. Publicado em: 01/05/2013
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10. Optimization of diesel engine parameters using Taguchi method and design of evolution
The objective of this work is to optimize the control parameters of the direct injection (DI) single cylinder diesel engine with respect to NOx (Oxides of Nitrogen) and fuel emissions through experimental investigations and Taguchi method. A single cylinder 5.2 kW diesel engine was selected for this experiment. Five parameters such as clearance volume, valve
J. Braz. Soc. Mech. Sci. & Eng.. Publicado em: 2012-12
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11. Investigation of asphaltene precipitation in miscible gas injection processes: experimental study and modeling
Asphaltene precipitation during natural depletion and miscible gas injection is a common problem in oilfields throughout the world. In this work, static precipitation tests are conducted to investigate the effects of pressure, temperature and gas type and concentration on asphaltene instability. Three different oil samples have been studied under reservoir c
Braz. J. Chem. Eng.. Publicado em: 2012-09
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12. Estudo dos efeitos celulares e vasculares da criocirurgia com nitrogênio líquido, na pele de ratos, por método histopatológico / The study of cellular and vascular effects of cryosurgery with liquid nitrogen, in rat skin, using the histopathological method
Cryosurgery is a very efficient therapeutic technique to treat benign and malignant cutaneous diseases. The primary active mechanism of cryosurgery is related to vascular effects in treated tissue. After a cryosurgical procedure, exuberant granulation tissue is formed at the injection site, probably as a result of angiogenic stimulation of the cryogen and in
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 06/12/2011