scholarly journals Determination of adhesion stages of the Fe-Ni ore at the Ferronikeli plant in Drenas

2020 ◽  
pp. 37-42
Author(s):  
Zarife Bajraktari-Gashi ◽  
Muharrem Zabeli ◽  
Erard Morina
Keyword(s):  
Point Of View ◽  
High Moisture Content ◽  
High Moisture ◽  
Economic Point ◽  
X Ray ◽  
Nickel Ores ◽  
Iron Nickel ◽  
Rotary Kilns ◽  
The University

Abstract: Purpose. The process of calcine production in rotary kilns at the Ferronikeli plant in Drenas is realized with great difficulties as a result of the formation of large adhesions in the areas of rotary kilns. So far, the removal of load adhesions during the work process inside the rotary kilns is achieved only by their physical removal. The purpose of the paper is to determine the factors in reducing adhesions in the process of calcine production in the areas of rotary kilns, in the Ferronikeli plant in Drenas. Methodology. Chemical analysis of iron-nickel ore. The determination of the composition of the adhesives was performed with the X-RAY device, in the laboratory of the Ferronikeli plant. Method with the software Calphad 2020, at the University of Ljubljana. Findings. From the composition of iron-nickel ore, the composition of adhesives in rotary kilns, we manage to determine the thermodynamic phases and exothermic and endothermic processes that take place in the process of rotary kilns. From the determinations of the composition of the adhesives in the software alphad 2020, we manage to determine one of the factors that affect the formation of adhesives based on the stages during the process, which do not have a stability, as a result of high moisture content of iron-nickel ores. Originality. Based on the study at the Ferronikeli plant, shovels were placed on the walls of the rotary kilns in the three areas, the removal of fireclay bricks, the placement of anchored concrete and the project for the placement of two kilns for kiln ore were started. Practical value.The placement of the shovels has increased the temperature inside the rotary kilns. While the placement of dryers will have an impact on reducing the adhesions inside the rotary kilns and from the economic point of view, we will have a reduction of fuels in the load of the rotary kilns.

scholarly journals Key Metallurgical Parameters of Fe-Ni Production During 1984–1997 and 2007–2017 at the Ferronickel Smelter in Drenas

2020 ◽  
Vol 67 (2) ◽  
pp. 73-77
Author(s):  
Zarife Bajraktari-Gashi ◽  
Muharrem Zabeli ◽  
Behram Halilaj
Keyword(s):  
Moisture Content ◽  
Casting Process ◽  
The Philippines ◽  
High Moisture Content ◽  
High Moisture ◽  
Nickel Ores ◽  
Iron Nickel ◽  
Rotary Kilns ◽  
The Republic ◽  
Laterite Ore

AbstractDuring 1984–1997, the ferronickel plant in Drenas used iron-nickel ore from the mines of the Republic of Kosovo: Glavica and Çikatove (Dushkaje and Suke) mines. However, during the years 2007–2017, when the plant started operating from the cessation of production, which was from 1998 to 2007, some types of iron-nickel ores from different countries began to be used, starting from iron-nickel ores from Kosovo, iron-nickel ores from Albania, ores from Indonesia, ores from the Philippines, ores from Guatemala, ores from Turkey and ores from Macedonia. The ore composition, however, is mainly oxide-laterite ore. Iron-nickel ores in the plant are characterised by high moisture content, a very important factor influencing the process of scraping the charge in rotary kilns and presenting in general. Among the iron-nickel ore used in the ferronickel plant, the ores from Albania are characterised due to their low moisture content when compared with the other ores as well as the high content of iron oxides, which affect the temperature rise inside the furnaces, as the iron ores play an important role in the pre-casting process in rotary kilns.

scholarly journals BASE: a sustainable path for the University of Milano-Bicocca

2018 ◽  
Vol 48 ◽  
pp. 04005
Author(s):  
Cristina Messa ◽  
Giacomo Magatti ◽  
Massimiliano Rossetti ◽  
Matteo Colleoni ◽  
Massimo Labra ◽  
...  
Keyword(s):  
Climate Change ◽  
Energy Efficiency ◽  
Food Supply ◽  
Holistic Approach ◽  
Point Of View ◽  
Waste Reduction ◽  
Sustainable Mobility ◽  
Economic Point ◽  
The University ◽  
And Training

Since its foundation, in 1998, the University of Milano-Bicocca has been pursuing the objective to make its structures sustainable from an environmental, social and economic point of view. To this end, in 2015 the University of Milano-Bicocca created BASE (Bicocca Ambiente Società Economia - Bicocca Environment Society Economy), an internal office aimed at promoting the interaction between research and training and at stimulating sustainability both within the University and outside. BASE proposes a holistic approach to sustainability including energy efficiency, waste reduction, sustainable mobility, climate change attention and water and food supply. The report will focus on the interventions recently carried out in the various fields, paying particular attention to the issues of waste management and of mobility.

scholarly journals Determination of Monensin in High-Moisture Cattle Rations by Liquid Chromatography with Postcolumn Derivatization

1996 ◽  
Vol 79 (6) ◽  
pp. 1255-1259
Author(s):  
Debbie A Bridges ◽  
Doug M Roth ◽  
Christine M Cleveland ◽  
John W Moran ◽  
Mark R Coleman
Keyword(s):  
Moisture Content ◽  
High Moisture Content ◽  
Sample Processing ◽  
High Moisture ◽  
Cattle Feed ◽  
Accuracy And Precision ◽  
Liquid Chromatographic Method ◽  
Liquid Chromatographic ◽  
Postcolumn Derivatization

Abstract An existing liquid chromatographic method using postcolumn derivatization has been used extensively to quantitate monensin in animal feeds. Because of the relatively high moisture content of many cattle feed rations, some modifications were made to this method. Several sample-processing steps were evaluated to determine optimum sample-processing procedure. The sample weight/sample diluent ratio was modified, and method linearity was validated for the lower monensin concentrations anticipated in high-moisture cattle rations. The accuracy and precision of data generated at these lower concentrations were also determined. Because of the high moisture content of these rations, data analysis for this method required correction of feed potency for loss on drying. With these modifications, monensin can be accurately determined in high-moisture cattle rations.

scholarly journals A New Species of Eurygaster and Notes on Some Little Known Species of Turkish Pentatomidae (Hemiptera: Heteroptera)

1963 ◽  
Vol 70 (3) ◽  
pp. 144-150
Author(s):  
Niyazi Lodos
Keyword(s):  
New Species ◽  
Point Of View ◽  
Control Measures ◽  
Western Anatolia ◽  
Economic Point ◽  
Eurygaster Integriceps ◽  
Graminaceous Plants ◽  
The University ◽  
One New Species ◽  
A New Species

The species belonging to the genus Eurygaster Laporte are very important from the economic point of view in Turkey. Eurygaster integriceps Puton is one of the most harmful insects to wheat and barley, but in addition it also attacks rye, oat and other graminaceous plants. In Turkey it causes extensive damage especially in the eastern south provinces, the amount of injury caused varying from year to year and from place to place. In epidemic years the total amount of the losses in some areas can reach up to 9o% if no control measures are used. Eurygaster maura (L.) and Eurygaster austriaca (Schrk.), found especially in Western Anatolia, cause damage approaching only 20% if no control measures are used, because their egg parasites are very active in this part of the country. A good knowledge of this genus is therefore very important to Turkish entomologists and agriculturists. While working at the University of Aegea, Izmir-Turkey, I paid speciaL attention to these insects and collected many specimens whenever time was available. Amongst my material I find one new species which is described below.

scholarly journals The economic value of the museum of central Finland

1970 ◽  
pp. 123
Author(s):  
Timo Tohmo
Keyword(s):  
Economic Impact ◽  
Economic Value ◽  
Point Of View ◽  
Regional Economic ◽  
Economic Point ◽  
Social Existence ◽  
The Social ◽  
Regional Economic Impact ◽  
The University

In this article, the limits of the social existence of one museum – the Museum of Central Finland – is studied from an economic point of view by asking visitors and non-visitors to museums how much they are willing to pay as taxpayers for the services of the museum. The theme is from the author’s article dissertation in economics,”Regional Economic Structures in Finland: Analyses of Location and Regional Economic Impact”, which he defended on 3rd August 2007 at the University of Jyväskylä. 

Continuous Determination of Zinc Coating Weights on Steel by X-Ray Fluorescence

1962 ◽  
Vol 6 ◽  
pp. 345-351
Author(s):  
James A. Dunne
Keyword(s):  
Emission Line ◽  
Precise Measurement ◽  
Zinc Coating ◽  
Point Of View ◽  
X Ray ◽  
Zinc Coatings ◽  
Coating Weight ◽  
Black Plate ◽  
Continuous Determination

AbstractThe measurement of the area density of zinc coatings on steel by X-ray fluorescence is considered from an instalment design point of view. Each of the two general approaches, i.e., measurement of the attenuation of the iron emission line by the zinc coating and measurement of the sine emission line has limitations. Calculations indicate that contrast requirements are best satisfied by the iron attenuation technique in the coating weight interval 0.2-1.2 oz/ft2 per side. Experimental data collected on galvanised and zinc foil samples are presented in support of this contention. Conversely, advantages in the application of the zinc emission method to very thin zinc coatings are pointed out. Spectral resolution is discussed in terms of the ultimate precision and range of coating weight measurements. For the iron attenuation method, it is concluded that a black plate to infinite zinc intensity ratio of approximately 500 permits reasonably precise measurement of zinc foil coating weights in the vicinity of 1.2 oz/ft2 per side. This requirement can be met through the use of a LiF monochroraator crystal and 5 in. of effective 0.020-in. flat plate collimation.

scholarly journals The Determination of the Proper Motions of X-Ray Sources

1970 ◽  
Vol 7 ◽  
pp. 164-166
Author(s):  
Heinrich Eichhorn ◽  
George D. Gatewood ◽  
Sabatino Sofia
Keyword(s):  
Neutron Star ◽  
Neutron Stars ◽  
Proper Motion ◽  
South Florida ◽  
The Other ◽  
Proper Motions ◽  
X Ray ◽  
Other Information ◽  
The University

At the University of South Florida Observatory, a program is under way to determine the proper motions of the star-like objects which are possibly or probably associated with X-Ray sources. The objects under study are Sco X-l, and objects believed to be identical with Cen X-2, Cyg X-2, and Co D -32° 1057. Since it has been speculated that these might be neutron stars, an effort was made to study not only their proper motions but also those of other stars in the neighborhood to ascertain membership of any moving cluster with known age and distance, whereby their own ages and distances might become known. These efforts were successful so far in the case of ScoX-1 (Sofia, Eichhorn and Gatewood, 1969), whose proper motion is virtually identical to that which a member of theScorpio-Centaurus Association would have at this position, so that the membership of Sco X-l in this association becomes highly probable. On the basis of this and other information, Gatewood and Sofia (1969) conclude that Sco X-l is quite likely a neutron star. The reduction was described in detail by Gatewood (1968). No definitive results are available yet for the other three objects.

Ideas, Institutions and the Exhaustion ofModell Deutschland?

2004 ◽  
Vol 5 (9) ◽  
pp. 1133-1154 ◽  
Author(s):  
Christopher S. Allen
Keyword(s):  
Corporate Governance ◽  
Industrial Relations ◽  
Historical Context ◽  
German Law ◽  
Supervisory Board ◽  
Legal Framework ◽  
Point Of View ◽  
Criminal Proceedings ◽  
Economic Point ◽  
The University

[Editors’ Note: This is the fourth consecutive article published in German Law Journal since July 2004 that is dedicated to the ongoing debate over the fate and prospects of the German model of Capitalism, welfare policy and corporate governance. The 22 July 2004 acquittals of all six defendants in the criminal proceedings against former Mannesmann CEO, Klaus Esser; Deutsche Bank's CEO (Vorstandssprecher) and then Member of Mannesmann's supervisory board, Josef Ackermann, and other members of Mannesmann's Supervisory Board have, once more, highlighted to German, European and International observers the particular features of law and politics in “Germany Inc.”, “Rhenish Capitalism”, or “Rhineland Capitalism”. As begun in the aftermath of Josef Ackermann's inthronization at the head of Deutsche Bank in May 2002 (exactly two years and two months before his acquittal before theLandgerichtDüsseldorf) and Ackermann's subsequent transformation of the Board's control structure,German Law Journalhas published several contributions to the ongoing changes in German corporate governance and its embeddedness within the specific German economic and legal system (seehttp://www.germanlawjournal.com/article.php?id=156). In the Journals July issue, Peter Kolla, a law student of Osgoode Hall Law School of York University in Toronto, meticulously traced the background debates to the closely observed criminal proceedings in the Mannesmann aftermath (http://www.germanlawjournal.com/article.php?id=460), and in our August issue, Jürgen Hoffmann, Professor of Sociology in Hamburg, surveyed the current interdisciplinary debate over the future fate of so-called Rhineland Capitalism and reconstructed Germany's recent history in an international context of globalization and privatisation (http://www.germanlawjournal.com/article.php?id=485). Also in the August issue, Max Rolshoven, writing his Ph.D. in law at the University of Münster, offered a first assessment of the acquittals in the Mannesmann case (http://www.germanlawjournal.com/article.php?id=480). In the article, published here, Professor Christopher Allen of the University of Georgia further deepens this inquiry from an economic point of view, while placing the contemporary debate over the possible end of Rhineland capitalism in the historical context of Germany's development in the 20th Century. The Editors ofGerman Law Journalare very pleased and honored to be able to provide for a further forum for this important debate, bringing together lawyers, economists, political scientists and sociologists, for a much needed exploration of the historical and political origins as well as of the legal framework of Germany's much critizised and, at the same time, ardently praised system of corporate governance and industrial relations. We invite our readers to contribute to this debate, which has so far found too little resonance in Germany itself.The Editors.]

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