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Abstract

Emerging technologies represent the direction of the new industrial revolution of promoting sustainable economic and social development, and strategic emerging industries have developed rapidly in China. The development of these emerging technology industries requires more mineral resources as raw materials, especially the need for specific minerals, has increased. The unsatisfied growing demand for minerals used in emerging technologies or an unexpected supply disruption in major producing countries could have an impact on economic development. There are only several studies on the supply of mineral resources from the perspective of mineral resources needed by the development of China’s emerging industries. To assess the criticality of the minerals needed by the strategic emerging industries in China, this paper adopts three indicators: import concentration, the volatility of prices and the application requirements by the Chinese 13th five-year plan dedicated to strategic emerging industries in 2016. Furthermore, 34 types of nonfuel minerals and mineral raw materials are separated into three categories. Finally, this paper indicates that the three indexes are all high for 8 minerals with supply risks, application in emerging technologies, and substantial market fluctuations which need the support of special policies. Two indexes of three Level-II indicators are high for 14 minerals which need different policy combination measures, and one index is high for 12 minerals which also needs attention, all of which were analyzed.

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Authors and Affiliations

Yun Yu
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Abstract

The present paper examines the textual evidence, mainly the late Vedic codifications of the domestic rituals Gṛhya sūtras and Hindu religious and legal duties Dharma śāstras, related to the name giving tradition in ancient India. Issues are addressed: why according to tradition a brāhmaṇa should have two names, and why one of these names should be the nakṣatra (lunar constellation) name? How the secret ( guhya) stellar name was chosen? How name giving practices are related to the concept of the sacred speech in Indian religious culture? The historical and textual analysis of the Sanskrit sources, besides of the historical approach to religious studies shall be applied as the principal methodological tools. Conclusion is made that the Indian name derived from the nakṣatra was vitally connected with the of the individual and his super-personal power lying behind, and kept secret less enemies may do mischief to the man through it. The adoption of a second, secret name was assumed also for success and distinction in life.
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Authors and Affiliations

Audrius Beinorius
1
ORCID: ORCID

  1. Vilnius University, Lithuania
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Abstract

This is a short overview of a Tatar journal Heberçı of 22 (+2 title) pages published in 1952 in Stockholm, the content, and the language features of which were unknown to the specialists up to now. It was called issue number 1. The publication was realized by a group of well-known Tatar writers, scientists and journalists who lived at that time in Sweden as immigrants. The copy of the journal which was at my disposal was received from Stockholm. The study of this bulletin may give new information about the duration of the keeping or not keeping of the immigrants’ mother tongue in a foreign language environment. Also, one can regard it as a source for research of the social status of the immigrants in Europe in the middle of the 20th century. This article will present the following: 1. an overview of the content of the bulletin, 2. an analysis of the language of the journal in comparison with the Modern literary Tatar language, 3. the translation into English of 2 texts from the bulletin and 4. 5 pages of facsimiles of the texts.
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Authors and Affiliations

Iala Ianbay
1
ORCID: ORCID

  1. Jerusalem, Israel
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Abstract

This paper concerns the analytical investigation of the axisymmetric and steady flow of incompressible couple stress fluid through a rigid sphere embedded in a porous medium. In the porous region, the flow field is governed by Brinkman's equation. Here we consider uniform flow at a distance from the sphere. The boundary conditions applied on the surface of the sphere are the slip condition and zero couple stress. Analytical solution of the problem in the terms of stream function is presented by modified Bessel functions. The drag experienced by an incompressible couple stress fluid on the sphere within the porous medium is calculated. The effects of the slip parameter, the couple stress parameter, and permeability on the drag are represented graphically. Special cases of viscous flow through a sphere are obtained and the results are compared with earlier published results.
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Authors and Affiliations

Krishna Prasad Madasu
1
ORCID: ORCID
Priya Sarkar
1
ORCID: ORCID

  1. Department of Mathematics, National Institute of Technology, Raipur-492010, Chhattisgarh, India
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Abstract

The paper presents application of direct pseudospectral Chebyshev method for solving a commercial airplane trajectory optimization problem. This method employs Nth-degree Lagrange polynomial approximations for the state and control variables with the values of these variables at the Chebyshev-Gauss-Lobatto (CGL) points as the expansion coefficients. This process is converted to a nonlinear programming problem (NLP) with the state and control values at the CGL points as unknown NLP parameters. The kinetic model of flight is formulated, where it is assumed that an airplane is a particle and the motion takes place in the vertical plane. The method is implemented in Matlab using sequential quadratic programming algorithm (SQP) as an efficient solver. Sensitivity analyses are performed concerning the influence of the degree of discretization and the initial approximation on the solution. Three examples of optimized trajectories in presence of wind are shown.
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Authors and Affiliations

Przemysław Panasz
Ryszard Maroński
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Abstract

The assurance of future raw materials supply to the EU mineral industry has become, in recent years, one of the priority tasks of the EU Commission, geological surveys and several research centers. After many years of negligence, the problem of developing supply risk of many raw materials in Europe has been perceived, along with the menace to the EU economy competitiveness coming from dynamically developing countries such as China, India and others - basically of Asian origin. This has initiated a new mineral policy within the EU zone, referring mainly to non-fuels. One of the starting points for this activity has become the assessment of the EU mineral resources potential and identification of the raw materials that are critical for the harmonious and sustainable development and technological progress. The paper briefly presents the results of research work focused on the critical raw materials assessment, which were conducted by the Initiative for the Raw Materials Supply. Its core is the presentation of Polish mineral reserve base and its potential as a possible source of critical raw materials for the European Union. The criticality analysis was based on three categories, i.e.: economic consequences of the supply limitation, supply risk of reduction (fluctuation or disruption), and environmental risk referring to countries with weak environmental performance in order to protect the environment that jeopardize the supply of raw materials to the EU. For their quantitative assessment there were proposed three aggregated indices, while for the forecast purposes - 10-year period. The criticality ratio was determined for the 41 most important and most frequently used raw materials. On the grounds of the research made up to now, these raw materials were preliminary divided into three groups. As a critical to the EU economy, 14 raw materials of major economic importance were discriminated, i.e.: antimony, beryllium, cobalt, fluorite, gallium, germanium, graphite, indium, magnesium, niobium, PGM, rare earths, tantalum, and tungsten. They are characterized by high supply risk, which is mainly due to limited number of their sources - dominated by a few countries, in particular China. The risk of supply disruptions is boosted by low rate of utilization of secondary sources, and limited scale of substitution as well. The majority of the above-mentioned raw materials are crucial for the new technologies development. The remaining minerals arealso - though to a lesser extent - imperiled with a supply deficit. Despite they are also of economic importance, their indispensability for the advanced technologies development is relatively smaller. Taking into account the raw materials that are critical for the European Union economy, Poland cannot be considered as its resource base. The source of these raw materials are not only scarce in Poland, but also they are not produced, and their demand is now - and according to forecasts is going to be in the future - met by imports. However, the role of our country as a manufacturer of finished products from components of foreign origin is anticipated to increase. The raw materials in question are not considered exactly critical for Polish economy, as any industrial branch based upon their utilization has emerged so far. Therefore, they are of limited economic importance. Presumable utilization of very limited sources of above-mentioned critical raw materials in Poland could be anticipated in a perspective of at least 20 years. The most probable in this respect are the following: opening out the new Mo-W-Cu ore deposit Myszków, and the promotion of exploration works for similar deposits.

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Authors and Affiliations

Barbara Radwanek-Bąk
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Abstract

The results of experimental investigations on landfill gas separation on hollow fibres membranes made of poly (4 methylpentene-1) are presented. The effect of operating parameters on the performance and effectiveness of separation process has been described. Permeation process has been carried out in countercurrent flow for medium methane landfill gases. Obtained results have been analyzed in aspect to optimization process conditions.
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Authors and Affiliations

Barbara Białecka
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Abstract

The cyclic modular approach is proposed for mechatronic object design. The approach is based on a new conceptual model of the object and a new algorithm of its design. The model consists of invariant and changeable parts. The parts have a hierarchical structure. The proposed algorithm allows for creating the object from the basis principle to the construction step by step. It makes it possible to design an adequate object in all forms of its representations: structure, schematic diagram, mathematical model and construction. Each of these forms has an invariant part, i.e. the structure of the functioning process of the object. Application of the proposed approach reduces the time needed for the object design.

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Authors and Affiliations

Oleksandr Uzunov
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Abstract

The biographies of the journalists of Polish press published in West Prussia in the 19th and early 20th century usually highlight their patriotic commitment and admirable perseverance in launching and running various newspapers and journals. However, we can also find in their lives episodes that did them little credit, or even were downright disgraceful.

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Authors and Affiliations

Grażyna Gzella
ORCID: ORCID

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