Results 121 to 130 of about 700,838 (285)
Application of Raman and Photoluminescence Spectroscopy to MgO‐C Refractories
Advanced Engineering Materials, EarlyView.Visible to near infrared luminescence of MgO is studied on MgO‐C bricks and nominally pure MgO powder, with focus on two similar sharp high‐intensity signals, at 699 and 871 nm, each surrounded by symmetrical sidebands. The nature of these sidebands is investigated by temperature‐dependent spectroscopic measurements, confirming phonon involvement by ...
Julia Richter +5 more
wiley +1 more source
Uso de combustíveis e emissões de CO2 no Brasil: um modelo inter-regional de insumo-produto [PDF]
Nova Economia, 2006 This study quantifies CO2 emissions caused by consumption of natural gas, alcohol and petroleum derivatives for six Brazilian regions, and evaluates the impact of possible policies for emission control.
Emerson Martins Hilgemberg +1 more
doaj
Advanced Engineering Materials, EarlyView.Micro‐Raman spectroscopy is applied to characterize corrosion products in a recycled‐based MgO–316L steel composite anode after molten salt electrolysis. A depth‐dependent Fe–O/Fe–Al–O layer sequence of magnetite, hercynite, and an Al‐doped magnetite transition zone is identified.
Felix Drechsler +9 more
wiley +1 more source
Infrared photometry and spectrophotometry of Titan [PDF]
The wide variation in infrared brightness temperature of Titan is explained in terms of a greenhouse effect. Radiometric observations in the infrared and microwave frequencies indicate an alternate hot atmospheric model. Methane, ammonia, hydrogen atoms,
Morrison, D.
core +1 more source
Greenhouse gas emissions, inventories and validation [PDF]
, 2008 The emission of greenhouse gases has become a very high priority research and environmental policy issue due to their effects on global climate. The knowledge of changes in global atmospheric concentrations of greenhouse gases since the industrial ...
Fowler, David +3 more
core
Advanced Engineering Materials, EarlyView.A carbon‐free, as‐sintered MgO–steel cermet anode, fabricated via cold isostatic pressing using MgO–C refractory recyclate, was evaluated under laboratory‐scale K‐cryolite electrolysis at 800°C. Operation at this reduced temperature, combined with the electrolyte's limited electrical conductivity, led to an increase in cell voltage.
Farhan Hossain +7 more
wiley +1 more source
Comparative evaluation of solar, fission, fusion, and fossil energy resources. Part 5: Conclusions and recomendations [PDF]
Air pollution resulting from the use of fossil fuels is discussed. Phenomena relating to the emission of CO2 such as the greenhouse effect and multiplier effect are explored. Particulate release is also discussed.
Williams, J. R.
core +1 more source
Advanced Engineering Materials, EarlyView.Low‐consumable nickel ferrite‐based anodes for the Hall–Héroult process are compared with conventional prebaked carbon anodes using thermodynamic simulation and prospective life cycle assessment under contrasting future electricity system pathways from 2025 to 2050.
Felipe Alejandro Garcia Paz +6 more
wiley +1 more source
Advanced Engineering Materials, EarlyView.Cermets (60 vol.% AISI 316L stainless steel, 40 vol.% recycled MgO), intended for use in aluminum electrolysis, were pre‐oxidized in three furnaces with different heating technologies and subjected to a cryolite corrosion test. The different atmospheres influenced the formation of oxide layers, which in turn affected corrosion resistance and ...
Patricia Kaiser +4 more
wiley +1 more source
, 2014 Most climate scientists agree the main cause ol the current global warming trend is human expansion of the "greenhouse effect" warming that result when the atmosphere traps heat radiating trom Earth towards the space. Certain gases in the atmosphere block heat from escaping, Long-lived gases, remaining semi-permanently in the atmosphere, which do not ...
Dalip, Ayse Kazim +2 more
openaire +1 more source