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1.
F Wimmer J Lanschützer H Resch A Andretsch H Lempradl H Thöne K Mörwald J Kieweg H P Narzt CFürst 《钢铁》2004,39(Z1):590-592
1前言及历史背景
为避免钢水造成燃烧或破碎引起对人体的可能伤害,必须对连铸平台的平面布置进行分析. 相似文献
2.
J. Lanschützer O. Schulz M. Thalhammer 《BHM Berg- und Hüttenm?nnische Monatshefte》2005,150(5):187-189
In November 2000 the Belgian stainless steel producer UGINE & ALZ Belgium nv, a company of the Arcelor Group, awarded VAI a contract for the upgrading and expansion of their steelmaking plant. The overall project included the revamping and supply of new equipment and systems for the steelmaking, continuous casting and environmental protection facilities. An essential part of this ambitious modernization program was the upgrading and expansion of the existing single-strand slab caster, with an output of 600 000 t/a, to a combined single- or twin-strand slab caster with a nominal production capacity of 1.2 million tons — the world’s largest stainless steel slab caster. All upgrading and installation activities had to be carried out within an extremely tight caster shut-down period of 21 days only in order to minimize production losses. This paper discusses the innovative project management solutions implemented in combination with extensive preassembly activities and workshop testing to assure the successful outcome of this project. 相似文献
3.
4.
Dirk Jodin Christian Landschützer Norbert Hafner 《BHM Berg- und Hüttenm?nnische Monatshefte》2016,161(5):212-220
This paper introduces technical innovations in logistics engineering. Advanced simulation methods provide virtual insights in machinery behavior and support engineering development. Lab tests leading to efficiency indices help to seriously describe energy efficiency in conveying processes. 相似文献
5.
Random side-chain functionalized copolymers were synthesized, utilizing a facile Yamamoto protocol by applying 2,7-dibromo-9,9-bis(6-bromohexyl)-9H-fluorene, (E)-1,2-bis(4-bromophenyl)ethene, 2,7-dibromo-9,9-dioctyl-9H-fluorene as comonomers. The precursor copolymers were post-functionalized utilizing di-n-propylamine and the resulting target copolymers were fully characterized. The optical classification parameters have been determined in solutions and in thin films as well. The copolymers revealed blue light emission, wide optical bandgaps Egopt of at least 2.84 eV and remarkable quantum yields up to 0.78 in chloroform solutions. The amino-functional copolymers allowed tying semiconductor CdTe nanocrystals. 相似文献
6.
V Nüssler R Pelka-Fleisc F Gieseler M Hasmann R L?ser E Gullis O St?tzer H Zwierzina W Wilmanns 《Canadian Metallurgical Quarterly》1998,31(5-6):589-597
P-glycoprotein(P-gp)- related resistance is one of the major obstacles in treating leukemia patients. Therefore, it is of clinical interest to find new potential modulators and compare their P-gp-modulating efficacy. The present analysis investigated the influence of P-gp modulators, such as verapamil, tamoxifen, droloxifene E, droloxifene Z, SDZ PSC 833 (PSC 833) and dexniguldipine in a leukemic T-cell line (CCRF-CEM) and its P-gp-resistant counterparts (CCRF-CEM/ACT400 and CCRF-CEM/VCR1000). P-gp expression was assessed with an immunocytological technique using the monoclonal antibody 4E3.16. It was characterized as the percentage of P-gp positive cells and also expressed as a D value by using the Kolmogorov Smirnov statistic. The efficacy of P-gp modulators was determined with the rhodamine-123 accumulation test and the MTT test. An in vitro modulator concentration between 0.1 microM and 3 microM was determined, where no genuine antiproliferative effect was apparent. The modulators PSC 833 and dexniguldipine were the significant (p相似文献
7.
Dargahi Noubary Kaveh Kellner Michael Hötzer Johannes Seiz Marco Seifert Hans J. Nestler Britta 《Journal of Materials Science》2021,56(20):11932-11952
Journal of Materials Science - In order to approximate Gibbs energy functions, a semi-automated framework is introduced for binary and ternary material systems, using Calphad databases. To generate... 相似文献
8.
Alexander K. Opitz Christoph Rameshan Markus Kubicek Ghislain M. Rupp Andreas Nenning Thomas Götsch Raoul Blume Michael Hävecker Axel Knop-Gericke Günther Rupprechter Bernhard Klötzer Jürgen Fleig 《Topics in Catalysis》2018,61(20):2129-2141
Owing to its extraordinary high activity for catalysing the oxygen exchange reaction, strontium doped LaCoO3 (LSC) is one of the most promising materials for solid oxide fuel cell (SOFC) cathodes. However, under SOFC operating conditions this material suffers from performance degradation. This loss of electrochemical activity has been extensively studied in the past and an accumulation of strontium at the LSC surface has been shown to be responsible for most of the degradation effects. The present study sheds further light onto LSC surface changes also occurring under SOFC operating conditions. In-situ near ambient pressure X-ray photoelectron spectroscopy measurements were conducted at temperatures between 400 and 790 °C. Simultaneously, electrochemical impedance measurements were performed to characterise the catalytic activity of the LSC electrode surface for O2 reduction. This combination allowed a correlation of the loss in electro-catalytic activity with the appearance of an additional La-containing Sr-oxide species at the LSC surface. This additional Sr-oxide species preferentially covers electrochemically active Co sites at the surface, and thus very effectively decreases the oxygen exchange performance of LSC. Formation of precipitates, in contrast, was found to play a less important role for the electrochemical degradation of LSC. 相似文献
9.
Spatial propagation of ultra‐fine binder suspensions in loose rock. During the injection of ultra‐fine binder suspensions depth filtration mechanisms result in an enrichment of the binder particles in the vicinity of the injection point and a concomitant depletion of binder in the margins of the injected body. The consequence is a reduction in the predicted reach of the injection. This effect is accompanied by increased permeabilities and reduced strengths at the margins of the injected body. The effects of depth filtration mechanisms on the propagation of ultra‐fine binder suspensions in loose rock zones is investigated in a series of large scale injection tests generating suggestions for the execution of injection operations with ultra‐fine binder suspensions. 相似文献
10.