New Сlassification of Ore Deposits Mining Methods

2017 ◽  
Vol 25 ◽  
pp. 71-79 ◽  
Author(s):  
Maksym Kononenko ◽  
Oleh Khomenko ◽  
Denys Astafiev

The analysis of advantages and disadvantages of the existing classifications of mining method by the way of stoping space supporting in the course of extraction of ores is executed. The new classification of mining methods of ore deposits allowing to capture all range of the applied variants of systems for different mining-and-geological and mining conditions is developed. It is possible to formulate names of mining methods on proposed which allows to present a complex of the productions which are carried out during mining of production blocks.

2021 ◽  
Vol 15 (3) ◽  
pp. 405-420
Author(s):  
Bhanu Chander Balusa ◽  
Amit Kumar Gorai

In the last few decades, many underground mining methods were proposed for extractions of ores. The decision-making for selecting the most suitable mining method for a typical ore depost depnds on various intrinsic and extrinsic factors (intrinsic – dip, shape, thickness, depth, grade distribution, RMR (rock mass rating) and RSS (rock substance strength) of ore, hanging wall, footwall, and extrinsic – recovery, dilution, safety, productivity, flexibility, capital). The present study aims to develop a hierarchical Fuzzy-AHP (FAHP) model for choosing the most suitable underground mining method for an ore deposit. The structure of the proposed hierarchical FAHP model consists of five levels. The level-1 of the hierarchy defines two variables (intrinsic factors and extrinsic factors). These are further classified into quantitative or qualitative nature of variable (listed in level-2). The criteria, sub-criteria, and mining method variables are listed respectively in Level 3, Level 4, and Level 5. For each level of the hierarchy, a fuzzy pair-wise comparison matrices are developed using the corresponding levels’ listed variables. These matrices at each level are subsequently used to determine the local and global weights of each variable. The global weights are used for prioritizing the different mining methods. The proposed hierarchical FAHP model was validated by considering the field data of two different ore deposits in India. The results showed that the most appropriate mining method predicted from the decision-making model and the adopted mining method for extracting the ore deposit are same in two case studied mines.


2012 ◽  
Vol 8 (1-2 (10)) ◽  
pp. 91-98
Author(s):  
Robert Khachatryan

The article aims to suggest a new classification of modern English causative verbs, namely those meaning “to kill”. The author suggests classifying these verbs according to three features – with reference to some instrument/tool (pointing to the use of a tool in the definition), with reference to some cause (pointing to the cause of the murder) and with reference to the manner (pointing to the way the murder was performed).


Mnemosyne ◽  
2020 ◽  
Vol 73 (3) ◽  
pp. 353-376
Author(s):  
Hilary Bouxsein

Abstract While contrary-to-fact conditions in Homeric narrative have already received considerable attention, those that occur in character speech, which potentially share some of the important and even metapoetic qualities as narrative conditions, have been understudied. This paper begins by offering a new classification of different kinds of counterfactuals that occur in direct speech, incorporating some of the methods of pragmatic linguistics. By building on this classification, it becomes possible to see new resonances in the way that Homeric characters speak and present themselves.


2019 ◽  
Vol 7 (2) ◽  
pp. 245-256 ◽  
Author(s):  
Iva Slivar ◽  
Uglješa Stankov ◽  
Vanja Pavluković

The penetration of online booking among hotels has been growing steadily. In order to maintain its market position, online travel agencies (OTAs) are offering small and medium hotels, mainly to those which have not yet adopted e-commerce, their own booking engines for websites or as apps to be integrated on hotels' platforms. Hotels are persuaded by cuts in commission, no commissions and other privileges. The implications of such a decision are of crucial importance to hotels in the struggle for tourists. This article presents a new classification of tourism e-distribution which includes this phenomenon named “delegate distribution”, a partnership strategy of OTA-s with hoteliers drawing on a study on the expansion of delegated distribution in Croatia. The key advantages and disadvantages are also listed, along with a comparison with direct and indirect forms of distribution in terms of inference upon other marketing mix elements.


2016 ◽  
Vol 7 (4) ◽  
pp. 97-108 ◽  
Author(s):  
Michał Rogalewicz ◽  
Robert Sika

AbstractThe paper contains a review of methodologies of a process of knowledge discovery from data and methods of data exploration (Data Mining), which are the most frequently used in mechanical engineering. The methodologies contain various scenarios of data exploring, while DM methods are used in their scope. The paper shows premises for use of DM methods in industry, as well as their advantages and disadvantages. Development of methodologies of knowledge discovery from data is also presented, along with a classification of the most widespread Data Mining methods, divided by type of realized tasks. The paper is summarized by presentation of selected Data Mining applications in mechanical engineering.


2015 ◽  
Vol 61 (2) ◽  
pp. 39-44 ◽  
Author(s):  
V A Peterkova ◽  
O V Vasyukova

This paper concerns classification of obesity in the children and adolescents, one of the debatable issues in modern pediatrics and pediatric endocrinology. The historical sketch of various classifications of obesity in the children and adolescents accepted in this country and abroad is presented with special reference to the advantages and disadvantages of each variant. The authors emphasize the difficulty of developing a unified classification of the multifactor disease being considered. A new classification of obesity in the children and adolescents is proposed that takes into consideration the etiological aspects, complications, co-morbid conditions, and the degree of obesity. The possible variants of diagnosis formulation taking account of the present-day international classification of diseases are discussed.


2009 ◽  
Vol 65 (2) ◽  
pp. 267-290 ◽  
Author(s):  
Kimmo Kettunen

PurposeThe purpose of this article is to discuss advantages and disadvantages of various means to manage morphological variation of keywords in monolingual information retrieval.Design/methodology/approachThe authors present a compilation of query results from 11 mostly European languages and a new general classification of the language dependent techniques for management of morphological variation. Variants of the different techniques are compared in some detail in terms of retrieval effectiveness and other criteria. The paper consists mainly of an overview of different management methods for keyword variation in information retrieval. Typical IR retrieval results of 11 languages and a new classification for keyword management methods are also presented.FindingsThe main results of the paper are an overall comparison of reductive and generative keyword management methods in terms of retrieval effectiveness and other broader criteria.Originality/valueThe paper is of value to anyone who wants to get an overall picture of keyword management techniques used in IR.


1971 ◽  
Vol 12 (7) ◽  
pp. 262-266
Author(s):  
K. F. Chudoba
Keyword(s):  

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