Results 91 to 100 of about 74,653 (349)

Corrosion and Process Analysis of a Preoxidized MgO Recyclate‐Based Cermet Anode in Laboratory‐Scale Na‐Cryolite Molten Salt Electrolysis of Aluminum at 1000°C

open access: yesAdvanced Engineering Materials, EarlyView.
EDX elemental map of the pre‐oxidized MgO–steel cermet anode cross section after electrolysis. The development of inert anodes for aluminum electrolysis remains challenging due to the high corrosivity of cryolite‐based melts at 950°C–1000°C. This study investigates the corrosion and process behavior of a carbon‐free MgO–steel cermet anode derived from ...
Alexander Adamczyk   +7 more
wiley   +1 more source

Variação do valor nutritivo e da degradabilidade in situ da matéria seca e da proteína bruta da erva castelhana com a época de corte e com o método de conservação [PDF]

open access: yes, 1996
Neste trabalho determinámos o valor nutritivo da erva castelhana (Lolium multiflorum) em três épocas de corte, em verde e ensilada. O valor mais elevado de energia metabolizável foi determinada na fase de crescimento 5% espigado, nas forragens verdes e ...
Borba, Alfredo Emílio Silveira de   +1 more
core  

Raman Spectroscopic Identification of Oxide Phases in a Corroded MgO–Steel Composite Anode Used in Aluminum Molten Salt Electrolysis

open access: yesAdvanced 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

In situ degradability of soyabean meal treated with Acacia saligna and Atriplex halimus extracts in sheep [PDF]

open access: yes, 2012
The effects of Acacia saligna (AC) and Atriplex halimus (AT) extracts were evaluated on ruminal soyabean meal (SBM) degradability using the nylon bag technique. Samples of SBM were treated with 0, 4, or 8 g of AC or AT extracts per 100 g SBM.
Ammar, Hajer   +11 more
core  

Degradabilidade ruminal in situ do sorgo grão em diferentes formas de reconstituição. [PDF]

open access: yes, 2014
Foram utilizadas três vacas não lactantes fistuladas no rúmen com o objetivo de determinar os parâmetros de degradação ruminal in situ da matéria seca (MS) e do amido de grãos de sorgo sob diferentes formas de processamento: 1) Seco e moído (2mm); 2 ...
BORGES, A. L. C. C.   +8 more
core   +1 more source

Comparison of in vitro techniques to the in situ technique for estimation of ruminal degradation of protein.

open access: yesJournal of Dairy Science, 1991
The accuracy with which the Streptomyces griseus, ficin, and neutral protease with amylase in vitro methods could be used to predict in situ protein degradation of concentrate feeds was evaluated.
M. Roe, L. Chase, C. Sniffen
semanticscholar   +1 more source

Interaction of Ladle Slag With Varying SiO2 Content and Recyclate‐Based MgO–C Refractories

open access: yesAdvanced Engineering Materials, EarlyView.
Ladle slags (CaO/Al2O3 = 1) with 1–20 wt% SiO2 were investigated in contact with industrial MgO–C refractories fabricated from fresh magnesia and 50 wt% recyclate. The sessile drop method at 1600°C reveals intensive gas formation, delayed slag infiltration in recyclate‐based samples, and, under high‐SiO2 slag, formation of a dense MgAl2O4‐rich ...
Anton Yehorov   +6 more
wiley   +1 more source

Estimation of the in situ degradation of the washout fraction of starch by using a modified in situ protocol and in vitro measurements

open access: yesAnimal, 2015
The in situ degradation of the washout fraction of starch in six feed ingredients (i.e. barley, faba beans, maize, oats, peas and wheat) was studied by using a modified in situ protocol and in vitro measurements.
L.H. de Jonge, H. van Laar, J. Dijkstra
doaj   +1 more source

Kinetics of digestion of low-quality forage grazed by beef cattle fed supplements containing increasing levels of rumen undegradable protein [PDF]

open access: yes, 2016
This experiment was conducted to evaluate the degradation kinetics and microbial efficiency of beef cattle grazing on low-quality forage and receiving supplements with different levels of rumen undegradable protein (RUP).
Azevedo, Flavio Henrique Vidal   +7 more
core   +4 more sources

Impact of Sustainable Binders Based on Lignin and Collagen on the Volume Stability and Mechanical Properties of MgO‐C Refractories with MgO‐C Recyclates

open access: yesAdvanced Engineering Materials, EarlyView.
Collagen hydrolysate is evaluated as a sustainable binder for MgO‐C refractories. Its thermally induced cross‐linking and gas release lead to expansion and cracking in large bricks, but tailored batches with lignin, recyclates, or fine graphite improve the gas release while thermal treatment and stability.
Till M. J. Stadtmüller   +8 more
wiley   +1 more source

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