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Date submitted2022-05-12
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Date accepted2022-09-06
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Date published2022-11-03
Morphometric parameters of sulphide ores as a basis for selective ore dressing
To assess the possibility of selective disintegration and reduction of overgrinding of hard-to-reproduce ores, optical microscopic and X-ray microtomographic studies were carried out and quantitative characteristics of morphological parameters of disseminated and rich cuprous ore samples from Norilsk-type Oktyabrsky deposit were identified. Among quantitative morphological parameters the most informative are area, perimeter, edge roughness, sphericity, elongation and average grain spacing for disseminated copper-nickel ores; area, perimeter, edge roughness and elongation for rich cuprous ores. The studied parameters are characterized by increased values and dispersion in ore zones, which is especially important for fine-grained ores, which are difficult to diagnose by optical methods. Three-dimensional modelling of the internal structure of sulphide mineralisation samples was carried out using computed X-ray microtomography, which allows observation of quantitative parameters of grains, aggregates and their distribution in the total rock volume and interrelationship with each other. The evaluation of rock pore space by computer microtomography made it possible to compare the results obtained with the strength characteristics of rocks and ores, including those on different types of crushers. The obtained quantitative characteristics of structural-textural parameters and analysis of grain size distribution of ore minerals allow us to evaluate the possibility of applying selective crushing at various stages of ore preparation
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Date submitted2009-09-14
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Date accepted2009-11-08
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Date published2010-06-25
Methodical recommendations for teaching post graduate students of technical high school to compose abstracts of scientific articles in english
- Authors:
- P. A. Vasilyeva
In the paper some methodical recommendations for writing abstracts in English are presented. They are given with taking into consideration the lexical-grammatical and syntactic features of scientific texts in English. The logical correlated phrases for composing abstract have been distinguished.
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Date submitted2009-09-18
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Date accepted2009-11-30
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Date published2010-06-25
Translation of the texts relevant to speciality as one of the important aspects of vocational education. Issues
- Authors:
- N. M. Karpenko
In the article the characteristics of the translation of the texts related on specialty as one of the important aspects of the vocational education is given. Both problems facing the teacher and the student are submitted to consideration. The difficulties of the lexical, syntactic and conceptive order are considered, and some ways of their solving are requested.
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Date submitted2009-09-17
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Date accepted2009-11-20
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Date published2010-06-25
Functional and stylistic, national and temporal features of modern scientific english text building
- Authors:
- S. A. Sveshnikova
The paper presents the analysis of the influence of functional and stylistic, national and cultural and time-of-creation factors on the organization of modern scientific texts in English.
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Date submitted2009-09-15
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Date accepted2009-11-15
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Date published2010-06-25
Innovative changes in scientific text comprehension as a foundation of information source
- Authors:
- I. V. Maltsev
The article analyzes variants of innovative text understanding approach. Any text is not just a new portion of some concrete information encoded with a help of certain language means (lexical, grammar, syntactical), but also a complete mental-language situation. Possibility of its complex understanding becomes real only when a multisided approach is applied. Such approach must be based on all data specter alongside with such fields of knowledge as the humanity pertaining semiotics, philological hermeneutics and theory of text inclusion. Problems appearing when understanding of structural, compositional, stylistic and other text peculiarities is being taken place are revised.
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Date submitted2009-09-10
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Date accepted2009-11-15
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Date published2010-06-25
Media text substance and culturally significant information extraction
- Authors:
- K. P. Sidorenko
The article deals with interpretation of quotation (intertextual substance) in modern Russian speech and forming didactic principles in innovations aspect. Some practical materials concerning culturally significant information extraction are given.
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Date submitted2009-09-23
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Date accepted2009-11-23
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Date published2010-06-25
Experience of mediatext in social culture teaching creating
- Authors:
- I. V. Trofimova
This article is devoted a problem of creation of the mediatext as new format for presentation of the scientific information. On a material of culture of the 1930 which have marked transition from avant-garde to totalitarianism, the (video) picture reflecting leading tendencies of an epoch and the form of their artistic realisation is built.
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Date submitted2009-08-08
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Date accepted2009-10-26
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Date published2010-02-01
Relationship between wear resistance of cutting bit body of mining tool and distribution of hardness along the cutting bit
- Authors:
- M. P. Talerov
In present article the courses of low wear resistance of rotary cutting bit body and also the courses of one-sided wear are described. The results of hardness of the cutting bit body from various manufacturers are represented here. In summary a conclusion was made that the utilization of thermal treatment after pressing removes specific structure that can be the course of one-sided wear genesis.