Iron Recovery from Nickel Slag by Aluminum Dross: A Static Model from Industrial Practice View

Author(s):  
Guangzong Zhang ◽  
Nan Wang ◽  
Min Chen ◽  
Xiaoao Li ◽  
Hui Li ◽  
...  
Author(s):  
Guangzong Zhang ◽  
Nan Wang ◽  
Min Chen ◽  
Ying Wang ◽  
Hui Li
Keyword(s):  

2010 ◽  
Vol 20-23 ◽  
pp. 796-800 ◽  
Author(s):  
Kai Xiang Peng ◽  
Jun Zhang ◽  
Jie Dong

The design of BOF in Jiangyin Xingcheng Special Steel Co. Ltd is based on static and dynamic model. The BOF end-point carbon content and temperature are predicted by means of BP neural network. On basis of that, the consumption of material, output of static model, are regulated according to the prediction result. The shortcoming that the theory on static model is imperfect is overcome. The end-point hit rate is raised effectually in industrial practice.


2020 ◽  
pp. 375-381
Author(s):  
A.V. Tsepkova

The paper analyses metaphorical patterns of coining contemporary Russian anthroponymic nicknames representing the nominee's character and behaviour. It is concluded that the motives under analysis are more frequent within the static model Person is the bearer of qualities (56,5 %), the most frequent source domain being the domain of living beings (man: 46,7 %; animal: 31,5 %). 68 % of nicknames have negative connotations, prevailing in cases drawn from the source domains Man (37 %) and Lifeless thing (9,8 %).


2020 ◽  
pp. 052
Author(s):  
Jean-Christophe Calvet ◽  
Jean-Louis Champeaux

Cet article présente les différentes étapes des développements réalisés au CNRM des années 1990 à nos jours pour spatialiser à diverses échelles les simulations du modèle Isba des surfaces terrestres. Une attention particulière est portée sur l'intégration, dans le modèle, de données satellitaires permettant de caractériser la végétation. Deux façons complémentaires d'introduire de l'information géographique dans Isba sont présentées : cartographie de paramètres statiques et intégration au fil de l'eau dans le modèle de variables observables depuis l'espace. This paper presents successive steps in developments made at CNRM from the 1990s to the present-day in order to spatialize the simulations of the Isba land surface model at various scales. The focus is on the integration in the model of satellite data informative about vegetation. Two complementary ways to integrate geographic information in Isba are presented: mapping of static model parameters and sequential assimilation of variables observable from space.


Author(s):  
Bruno Maçães

Popular consensus says that the US rose over two centuries to Cold War victory and world domination, and is now in slow decline. But is this right? History's great civilizations have always lasted much longer, and for all its colossal power, American culture was overshadowed by Europe until recently. What if this isn't the end? This book offers a compelling vision of America's future, both fascinating and unnerving. From the early American Republic, it takes us to the turbulent present, when, it argues, America is finally forging its own path. We can see the birth pangs of this new civilization in today's debates on guns, religion, foreign policy, and the significance of Trump. Should the coronavirus pandemic be regarded as an opportunity to build a new kind of society? What will its values be, and what will this new America look like? The book traces the long arc of US history to argue that in contrast to those who see the US on the cusp of decline, it may well be simply shifting to a new model, one equally powerful but no longer liberal. Consequently, it is no longer enough to analyze America's current trajectory through the simple prism of decline vs. progress, which assumes a static model—America as liberal leviathan. Rather, the book argues that America may be casting off the liberalism that has defined the country since its founding for a new model, one more appropriate to succeeding in a transformed world.


Metals ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 250
Author(s):  
Jiří Hájek ◽  
Zaneta Dlouha ◽  
Vojtěch Průcha

This article is a response to the state of the art in monitoring the cooling capacity of quenching oils in industrial practice. Very often, a hardening shop requires a report with data on the cooling process for a particular quenching oil. However, the interpretation of the data can be rather difficult. The main goal of our work was to compare various criteria used for evaluating quenching oils. Those of which prove essential for operation in tempering plants would then be introduced into practice. Furthermore, the article describes monitoring the changes in the properties of a quenching oil used in a hardening shop, the effects of quenching oil temperature on its cooling capacity and the impact of the water content on certain cooling parameters of selected oils. Cooling curves were measured (including cooling rates and the time to reach relevant temperatures) according to ISO 9950. The hardening power of the oil and the area below the cooling rate curve as a function of temperature (amount of heat removed in the nose region of the Continuous cooling transformation - CCT curve) were calculated. V-values based on the work of Tamura, reflecting the steel type and its CCT curve, were calculated as well. All the data were compared against the hardness and microstructure on a section through a cylinder made of EN C35 steel cooled in the particular oil. Based on the results, criteria are recommended for assessing the suitability of a quenching oil for a specific steel grade and product size. The quenching oils used in the experiment were Houghto Quench C120, Paramo TK 22, Paramo TK 46, CS Noro MO 46 and Durixol W72.


2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Filippo Belloc

AbstractWe study hours worked by drivers in the peer-to-peer transportation sector with cross-side network effects. Medallion lease (regulated market), commission-based (Uber-like pay) and profit-sharing (“pure” taxi coop) compensation schemes are compared. Our static model shows that network externalities matter, depending on the number of active drivers. When the number of drivers is limited, in the presence of positive network effects, a regulated system always induces more hours worked, while the commission fee influences the comparative incentives towards working time of Uber-like pay versus profit-sharing. When the number of drivers is infinite (or close to it), the influence of network externalities on optimal working time vanishes. Our model helps identifying which is the pay scheme that best remunerates longer working times and offers insights to regulators seeking to improve the intensive margin of coverage by taxi services.


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