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排序方式: 共有226条查询结果,搜索用时 15 毫秒
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Pankaj B. Pathare Nursin Baş John J. Fitzpatrick Kevin Cronin Edmond P. Byrne 《Food and Bioproducts Processing》2012,90(3):549-554
In the fluidised bed granulation process the effect of nozzle air pressure and binder spray rate on key aggregate quality attributes were studied. The experimental results show that a decrease in nozzle air pressure leads to larger mean granule size. The combination of lowest nozzle air pressure and lowest binder spray rate results in granules with the highest levels of hardness and crispness. The combination of low nozzle air pressure and low binder spray rate results in the least distribution span. Granola hardness was affected by nozzle air pressure. Nozzle air pressure and binder spray rate did not have significant effect on crispness. 相似文献
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Samer Aouad Cedric Gennequin Mary Mrad Haingomalala Lucette Tidahy Jane Estephane Antoine Aboukaïs Edmond Abi‐Aad 《国际能源研究杂志》2016,40(9):1287-1292
The wet impregnation method was used to prepare different ruthenium promoted Ce–Al catalysts. These catalysts were used in the steam reforming of methanol reaction (SRM). The effects of the reaction temperature (200–400 C) and the catalyst composition were studied for optimization reasons. The steam to methanol molar ratio was kept constant (S/M = 2). The promotion of cerium/aluminum oxides with Ru enhanced their catalytic activity. The catalytic test results showed that the Ru/Ce combination was the most beneficial. The synergy between Ru and cerium oxide led to the formation of active sites with excellent redox properties. For high active phase content, the 5 RuCe catalyst exhibited the highest hydrogen production amount with no CO formation. This catalyst was kept under stream for 5 days at 400 C, and no significant deactivation was observed. Copyright © 2016 John Wiley & Sons, Ltd. 相似文献
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Van Houte H De Hoffmann E Van Veldhoven PP Mannaerts GP Carchon H Baes MI Declercq PE 《Lipids》2001,36(4):367-372
The goal of this study was to clarify the mechanism responsible for the catabolism of α-tocopherol. The vitamin, bound to
albumin, was incubated with rat liver microsomes and appeared to be broken down. Optimal production of the metabolite was
obtained when 1 mg of microsomal protein was incubated with 36 μM of α-tocopherol in the presence of 1.5 mM of NADPH. Chromatographic
and mass spectrometric analyses of the metabolite led to the conclusion that it consists of an ω-acid with an opened chroman
ring, although we could not perform nuclear magnetic resonance analysis to confirm this. Our data show that α-tocopherol is
ω-oxidized to a carboxylic acid and that this process can occur in rat liver microsomes in the presence of NADPH and O2. The oxidation to the quinone structure appears to be a subsequent event that may be artifactual and/or catalyzed by a microsomal
enzyme(s). 相似文献
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Edmond P. Saliklis Michael Bauer David P. Billington 《Canadian Metallurgical Quarterly》2008,14(1):25-29
Aesthetic and ethical issues of building design are presented here to encourage meaningful discussion among today’s architectural engineering students and practitioners. The evaluative aesthetic ideas of scale, simplicity, and surprise are applied to two important structures designed by Fazlur R. Khan. Khan’s profound understanding of load flow in his buildings influenced his aesthetic ideas. Furthermore, his aesthetic ideas were intimately intertwined with his ethical ideas about structural logic and the role of structure in architecture. We explore these ideas and present new insights as well. Our goal is to encourage a public discourse within our profession on the topic of evaluating structural form. 相似文献
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Collaborations among various disciplines concerned with smoking prevention are gaining in currency. Such collaborations are predicated, in part, on recognizing both the implicit assumptions in different fields and the consequences of these assumptions. These issues, however, are often ignored in transdisciplinary research. In this article, we demonstrate how simple indices, such as the risk ratio, attributable fraction, or R(2), may have different implications for causal inference and interventions, depending on study setting and research goals. 相似文献
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This article details permeation tests that were performed on sheet samples of elastomers, over a wide range of pressures and temperatures, to study their effects on gas diffusion and solubility. It also explains how ageing is affected by gas permeation, and how the permeation test results can be used as input data for finite element analysis to aid the design of elastomeric components. 相似文献