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Oxidation of Olefins by Chromic Acid [PDF]
The oxidation of 2:4: 4-trimethylpentene-1 [α–diisobutylene] [I] by chromium tri-oxide dissolved in acetic anhydride yields a neutral oil containing largely 2: 4: 4-trimethylpentan-1: 2-epoxide [II] with smaller amounts of 2: 2-dimethylpentanone-4. [V], 2: 4: 4-trimethylpentanal [III] with 2: 4: 4-trimethylpentan-1: 2-diol [IV] and unsaturated alcohols
A. BYERS, W. J. HICKINBOTTOM
openaire +1 more source
Avaliaram-se os indicadores fibra detergente ácido indigestível (FDAi) e óxido crômico (Cr2O3) na estimativa das digestililidades parciais e total das frações nutritivas da dieta.
Rodolfo Marques de Brito +5 more
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Determinaram-se os coeficientes de digestibilidade aparente (CDAP) e verdadeira (CDVP) do fósforo de alimentos de origem animal. Foram utilizados 24 suínos, machos castrados, com média de peso de 25,0±3,0kg no período de crescimento e 24 suínos com média
S. Bünzen +6 more
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Performance and digestibility in feedlot lambs fed hay based diets
This study aimed to evaluate the performance of feedlot lambs fed diets formulated with hay of different genotypes of Cynodon spp. and to compare the dry matter digestibility of diets using different evaluation methods (total fecal collection and ...
Euclides Reuter de Oliveira +5 more
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Bovine Nutritional Needs: Digestibility of Dry and Ensiled Forages when Feeding Young Dairy Heifers
The diets fed to growing animals are very important to ensure that young animals have the proper nutrients available for growth. When feeding dairy heifers, a farmer’s goal is to feed a very digestible diet that will provide nutrients to keep dairy ...
Shirley Nigaglioni
doaj
Ingestive behavior, performance and forage intake by beef heifers on tropical pasture systems
The experiment was carried out to evaluate forage intake, performance and ingestive behavior of beef heifers. Productive, structural and chemical characteristics of the pasture were also evaluated. The experimental design was completely randomized in a 3
Renato Alves de Oliveira Neto +7 more
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The objective of this work was to estimate the total recovering and the long term bias of the estimates of fecal excretion using the external markers chromic oxide and titanium dioxide and internal markers indigestible dry matter (iDM), indigestible ...
Cláudia Batista Sampaio +5 more
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Schematic of the CO adsorption process in a fixed‐bed column containing pure NaY zeolite and Nb‐modified NaY (NaY–5%Nb). On the left, breakthrough curves and temperature profiles highlight the dynamic performance and thermal effects during CO adsorption.
Elson Oliveira +3 more
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Timeline of key academic milestones and individuals that shaped chemical engineering at FQ‐UNAM and in Mexico. Abstract One hundred years after the beginning of the teaching of Chemical Engineering in Mexico, which started in 1925 in the former National School of Chemical Sciences, currently Faculty of Chemistry (FQ) at National Autonomous University ...
Patricia Pérez‐Salinas +2 more
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This review systematically examines how different transition metal compounds—such as binary and multinary metal oxides, halides, sulfides, and salts—exhibit thermochromism based on the d‐electron configurations of their transition metal cations. It focuses on three main mechanisms of thermochromism: phase transition, charge transfer, and bandgap change.
Jie Wang +5 more
wiley +1 more source

