scholarly journals The Way to Achieve Internalization of External Diseconomy of Exploitation of Mineral Resources

2014 ◽  
Author(s):  
Meitian Zhao
Keyword(s):  
Mineral Resources ◽  
External Diseconomy ◽  
The Way

scholarly journals Possibilities of Using Brownfields After Mining and Processing of Mineral Resources in Slovakia

2019 ◽  
Vol 105 ◽  
pp. 02023
Author(s):  
Zuzana Šimková ◽  
Andrea Seňová ◽  
Adriana Divoková ◽  
Michaela Očenášová ◽  
Peter Varga
Keyword(s):  
Mechanical Engineering ◽  
Slovak Republic ◽  
Mineral Resources ◽  
Current State ◽  
Unused Land ◽  
Environmental Burdens ◽  
Degree Of Degradation ◽  
The Way

The article deals with possibilities of brownfields using after mining and processing of mineral resources in the Slovak Republic, which represent not enough used or unused land, including administrative buildings or mechanical engineering objects. These types of brownfields are often accompanied by environmental burdens in various forms and levels of contamination of individual environmental components. Brownfields, whose degree of degradation and contamination is directly determined by the way of mining and processing of mineral resources, represent the so-called brown investments, which do not benefit the region where the brownfields are currently located. The article points to the current state of existence of environmental burdens as a result of mining and processing of mineral resources, which is also considered negative determinants of their occurrence. Based on the prioritization of negative and positive determinants of the possible use of brownfields after mining and processing of mineral resources, it concludes with a categorization of their possible further use.

Geological Surveys in the Tropics: The Brazilian Experience (1875-1934)

2007 ◽  
Vol 26 (1) ◽  
pp. 151-171 ◽  
Author(s):  
Silvia Figueirôa
Keyword(s):  
Case Studies ◽  
Mineral Resources ◽  
Sao Paulo ◽  
São Paulo ◽  
Geological Surveys ◽  
Scientific Organizations ◽  
Geological Sciences ◽  
The Tropics ◽  
The Way

This paper presents and discusses three case studies of scientific organizations involving geology, based on successive institutional models of geological surveys, namely: the "Geological Commission of Brazil", the "Geographical and Geological Commission of São Paulo", and the "Geological and Mineralogical Survey of Brazil". The issues linked to the exploitation of the land opened the way to the development of geological sciences in Brazil. Contrary to what one might expect, in view of Brazil's considerable mineral resources, the institutionalization of geology was linked more directly to agriculture rather than to mining. It was the interests of agriculture, especially those related to coffee planting, that influenced the direction of research and the results obtained.

Study on Extraction of Alumina from Sericite Phyllite

2013 ◽  
Vol 544 ◽  
pp. 38-42 ◽  
Author(s):  
Hong Wei Zhao ◽  
Kai Qi Liu ◽  
Zhuang Li ◽  
Zhao Hui Huang
Keyword(s):  
Dissolution Rate ◽  
Mineral Resources ◽  
The Self ◽  
Liquid Ratio ◽  
Technological Parameters ◽  
Hexagonal Plate ◽  
Solid Liquid ◽  
Leaching Reaction ◽  
The Way

Alumina from sericite phyllite was extracted by the way of limestone self-pulverization sintering technique. The key technical processes, including self-pulverization sintering, clinker leaching reaction and the carbonation decomposition, were investigated systematically. The results showed that the main phases of pulverized clinker consisted of γ-C2S and C12A7, and the self-pulverization rate was 95% . The dissolution rate of Al2O3 clinker could reach 86.7% when the concentration of Na2CO3 solution was 7% and the solid-liquid ratio was 1:3. The Al(OH)3 prepared at 80°C carbonation temperature and pH=10.5 was relatively pure, with hexagonal plate-like crystals. The α-alumina could be acquired by calcination at 1200°C with the content of 99.71% Al2O3 and 0.02% Na2O. This work provided optimal technological parameters for effectively extracting alumina from the sericite and other inexpensive non-bauxite mineral resources with A/S ratio lower than 1.

scholarly journals Medea and Argonautics: Medicine, pharmacy, toxicology

2018 ◽  
Vol 27 (1) ◽  
pp. 55-63
Author(s):  
Ramaz Shengelia
Keyword(s):  
Roman Empire ◽  
Mineral Resources ◽  
Chemical Exposure ◽  
Modern Medicine ◽  
Allopathic Medicine ◽  
Main Principle ◽  
13Th Century ◽  
Effective Implementation ◽  
The World ◽  
The Way

According to mythical heritage, Medea, a daughter of the king of Colchis (Western Georgia, 13th century BC), famous for her beauty, was very wise and closely associated with plant lore, concoction of medicines, and medical activities. She knew various forms of remedies for internal and external use, respiratory, and so forth. In her therapeutic arsenal, there were medical remedies for a variety of uses: for treatment of various diseases, soporifics, poisons, ointments, miraculous and magical substances as well. Medea prepared the poisons by using special processing of medical remedies – extraction, infusion/tincture, thermal, mechanical, or chemical exposure, or concentration. The principle, according to which the modern medicine is developing, is contraria contrariis curantur (CCC), or contraries are cured, or allopathic medicine. At present, the priority still belongs to CCC. This is the direction that modern medicine and pharmacy throughout the world are following today. The way of effective realization of this principle is a strong chemical source. The stronger the source, the more effective the result. This thesis is based on two major ways of realization of the CCC principle – suppressing and compensating therapy where achieving an effect without a potent substance would not be possible. Toxicology and pharmacy were formed in the Roman Empire at the beginning of our era and are associated with the King of Pontus, a descendant of Colchis – Mithridates VI Eupator. Such a notion as the medicine/drug appeared in the Roman period. The authors do not describe the plant, animal or mineral resources but the product – the characteristics of the drug. Thus, Medea is not only considered a pioneer of cosmetics, hematology, surgery, toxicology, and other areas but also the founder of the way for effective implementation of the main principle of modern medicine and the donor of word root medicine. Afterwards, the term acquired a broader generalization and consequently become a synonym of medical art.

Self-sacrifice for in-group's history: A diachronic perspective

2018 ◽  
Vol 41 ◽  
Author(s):  
Maria Babińska ◽  
Michal Bilewicz
Keyword(s):  
Clinical Psychology ◽  
Historical Events ◽  
Emotional Events ◽  
Reciprocal Process ◽  
The Way

AbstractThe problem of extended fusion and identification can be approached from a diachronic perspective. Based on our own research, as well as findings from the fields of social, political, and clinical psychology, we argue that the way contemporary emotional events shape local fusion is similar to the way in which historical experiences shape extended fusion. We propose a reciprocal process in which historical events shape contemporary identities, whereas contemporary identities shape interpretations of past traumas.

What is the purpose of cognition?

2020 ◽  
Vol 43 ◽  
Author(s):  
Aba Szollosi ◽  
Ben R. Newell
Keyword(s):  
Infinite Number ◽  
Human Cognition ◽  
The Way

Abstract The purpose of human cognition depends on the problem people try to solve. Defining the purpose is difficult, because people seem capable of representing problems in an infinite number of ways. The way in which the function of cognition develops needs to be central to our theories.

Peculiarity Parameters

1976 ◽  
Vol 32 ◽  
pp. 233-254
Author(s):  
H. M. Maitzen
Keyword(s):  
Magnetic Field ◽  
Magnetic Fields ◽  
Theoretical Work ◽  
Observational Evidence ◽  
Rotator Model ◽  
Peculiar Behaviour ◽  
Field Spectrum ◽  
Oblique Rotator ◽  
Ap Stars ◽  
The Way

Ap stars are peculiar in many aspects. During this century astronomers have been trying to collect data about these and have found a confusing variety of peculiar behaviour even from star to star that Struve stated in 1942 that at least we know that these phenomena are not supernatural. A real push to start deeper theoretical work on Ap stars was given by an additional observational evidence, namely the discovery of magnetic fields on these stars by Babcock (1947). This originated the concept that magnetic fields are the cause for spectroscopic and photometric peculiarities. Great leaps for the astronomical mankind were the Oblique Rotator model by Stibbs (1950) and Deutsch (1954), which by the way provided mathematical tools for the later handling pulsar geometries, anti the discovery of phase coincidence of the extrema of magnetic field, spectrum and photometric variations (e.g. Jarzebowski, 1960).

The mensuration of interfaces

1992 ◽  
Vol 50 (1) ◽  
pp. 216-217
Author(s):  
W.M. Stobbs
Keyword(s):  
Electron Microscopy ◽  
50Th Anniversary ◽  
Numerical Data ◽  
Industrial Applications ◽  
Dynamical Theory ◽  
Large Strains ◽  
Reasonable Approach ◽  
Lattice Resolution ◽  
Analogue To Digital ◽  
The Way

I do not have access to the abstracts of the first meeting of EMSA but at this, the 50th Anniversary meeting of the Electron Microscopy Society of America, I have an excuse to consider the historical origins of the approaches we take to the use of electron microscopy for the characterisation of materials. I have myself been actively involved in the use of TEM for the characterisation of heterogeneities for little more than half of that period. My own view is that it was between the 3rd International Meeting at London, and the 1956 Stockholm meeting, the first of the European series , that the foundations of the approaches we now take to the characterisation of a material using the TEM were laid down. (This was 10 years before I took dynamical theory to be etched in stone.) It was at the 1956 meeting that Menter showed lattice resolution images of sodium faujasite and Hirsch, Home and Whelan showed images of dislocations in the XlVth session on “metallography and other industrial applications”. I have always incidentally been delighted by the way the latter authors misinterpreted astonishingly clear thickness fringes in a beaten (”) foil of Al as being contrast due to “large strains”, an error which they corrected with admirable rapidity as the theory developed. At the London meeting the research described covered a broad range of approaches, including many that are only now being rediscovered as worth further effort: however such is the power of “the image” to persuade that the above two papers set trends which influence, perhaps too strongly, the approaches we take now. Menter was clear that the way the planes in his image tended to be curved was associated with the imaging conditions rather than with lattice strains, and yet it now seems to be common practice to assume that the dots in an “atomic resolution image” can faithfully represent the variations in atomic spacing at a localised defect. Even when the more reasonable approach is taken of matching the image details with a computed simulation for an assumed model, the non-uniqueness of the interpreted fit seems to be rather rarely appreciated. Hirsch et al., on the other hand, made a point of using their images to get numerical data on characteristics of the specimen they examined, such as its dislocation density, which would not be expected to be influenced by uncertainties in the contrast. Nonetheless the trends were set with microscope manufacturers producing higher and higher resolution microscopes, while the blind faith of the users in the image produced as being a near directly interpretable representation of reality seems to have increased rather than been generally questioned. But if we want to test structural models we need numbers and it is the analogue to digital conversion of the information in the image which is required.

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