scholarly journals Unveiling the Link between the Third Law of Comminution and the Grinding Kinetics Behaviour of Several Ores

Metals ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 1079
Author(s):  
Victor Ciribeni ◽  
Juan M. Menéndez-Aguado ◽  
Regina Bertero ◽  
Andrea Tello ◽  
Enzo Avellá ◽  
...  

As a continuation of a previous research work carried out to estimate the Bond work index (wi) by using a simulator based on the cumulative kinetic model (CKM), a deeper analysis was carried out to determine the link between the kinetic and energy parameters in the case of metalliferous and non-metallic ore samples. The results evidenced a relationship between the CKM kinetic parameter k and the grindability index gbp; and also with the wi, obtained following the standard procedure. An excellent correlation was obtained in both cases, posing the definition of alternative work index estimation tests with the advantages of more straightforward and quicker laboratory procedures.

2016 ◽  
Vol 9 (2) ◽  
pp. 64
Author(s):  
Fatemeh Hakima ◽  
Naser Moheseni Nia ◽  
Mohammad Shafi Saffari ◽  
Syed Esmail Ghafelehbashi

<p>In the gnostic literature of Iran and in the Islamic Gnosis, gnosis has been interpreted as an effort to save the individual by accessing to the real unity. <br />The unity, mystical journey (conduct) and the relation of God with creature are considered as three main axes under the theme of unity or the gnostic unity until before the pantheistic gnosis of Ibn Arabi, the concept's explanation and the definition of unity in terminological and lexical terms, expression of unity concept in the non-Islamic gnosis, explanation of unity concept in the Iranian-Islamic gnosis until the period of Ibn Arabi, expression of the way of mystical journey, explanation of mystics' attitude on the subject of mystic unity based on the belief of Gnostics of Khorasan school, expression of God's relation with creature in the Iranian and Ibn Arabi's gnosis are considered as the most fundamental under considering instances of this research work; in addition, a brief explanation on pantheism of Ibn Arabi is also under consideration. The theoretical pillars of exalted unity from the perspective of Ibn Arabi, are existence, entity and manifestation; Ibn Arabi, contrary to his preceding Gnostics doesn't consider the creatures mirageor hallucination. This view is somewhat different from the views of mystics of Khorasan, and Gnosis of Khorasan, the differences that have led to two ways of Conduct (Mystical journey) in gnosis. The scope of this research begins from the third century AD and continues by the end of the seventh century that is the rise of theoretical gnosis based on the Ibn Arabi's pantheistic opinions.</p>


2018 ◽  
pp. 4-7
Author(s):  
S. I. Zenko

The article raises the problem of classification of the concepts of computer science and informatics studied at secondary school. The efficiency of creation of techniques of training of pupils in these concepts depends on its solution. The author proposes to consider classifications of the concepts of school informatics from four positions: on the cross-subject basis, the content lines of the educational subject "Informatics", the logical and structural interrelations and interactions of the studied concepts, the etymology of foreign-language and translated words in the definition of the concepts of informatics. As a result of the first classification general and special concepts are allocated; the second classification — inter-content and intra-content concepts; the third classification — stable (steady), expanding, key and auxiliary concepts; the fourth classification — concepts-nouns, conceptsverbs, concepts-adjectives and concepts — combinations of parts of speech.


Author(s):  
Shanmugapriya K. ◽  
T. Murugan ◽  
Thayumanavan Tha

Medicinal plants plays a significant role in the pharmaceutical industry. In present scenario, the need is to explore, identify and utilize this new medicinal plant on one hand and, on the other, to help conserve the existing but threatened species of rare medicinal plant.This present research work was carry out for the first time in South India to analyse and estimate the biochemical profiles of various extracts of fresh parts of Gnaphalium polycaulon pers., plant. The biochemical composition such as total carbohydrates, total proteins, total lipids, total phenols, cholesterol, total chlorophylls and reducing sugar, sterols were estimated using the standard procedure in fresh plant material.The biochemical analysis of Gnaphalium polycaulon plant showed the presence of various phytochemicals. The results of the present study supplement the usage of the studied plant which possesses several bioactive compounds and used as food and also as medicine.The results of present studies demonstrated that Gnaphalium polycaulon plant could be a sourceof valuable information and a guideline for the scientists, researchers in India and also all over the world


2011 ◽  
pp. 143-147
Author(s):  
L. G. Naumova ◽  
V. B. Martynenko ◽  
S. M. Yamalov

Date of «birth» of phytosociology (phytocenology) is considered to be 1910, when at the third International Botanical Congress in Brussels adopted the definition of plant association in the wording Including Flaó and K. Schröter (Flahault, Schröter, 1910; Alexandrov, 1969). The centenary of this momentous event in the history of phytocenology devoted to the 46th edition of the Yearbook «Braun-Blanquetia», which began to emerge in 1984 in Camerino (Italy) and it has a task to publish large geobotanical works. During the years of the publication of the Yearbook on its pages were published twice work of the Russian scientists — «The steppes of Mongolia» (Z. V. Karamysheva, V. N. Khramtsov. Vol. 17. 1995), and «Classification of continental hemiboreal forests of Northern Asia» (N. B. Ermakov in collaboration with English colleagues and J. Dring, J. Rodwell. Vol. 28. 2000).


Author(s):  
Al-KhaierAmer Abdul Kareem
Keyword(s):  

Abstract The research started with an introduction containing the statement of the problem. The study was divided into four parts: a preamble and three sections. The preamble involved a definition of the metaphorical image and its importance. The first section covered the sources of the metaphorical image, the second dealt with the types of the metaphorical image, and the third discussed the functions of metaphorical representation as well as the main tools that contributed to the construction and formation of the metaphorical image. Finally, the study ended with a conclusion comprising the most significant findings of this research. keyword: metaphorical image, AL-Sharif Al-Radi.


Mediaevistik ◽  
2020 ◽  
Vol 32 (1) ◽  
pp. 377-379
Author(s):  
Kriszta Kotsis

Late antique and early medieval graphic signs have traditionally been studied by narrowly focused specialists leading to the fragmentation and decontextualization of this important body of material. Therefore, the volume aims “to deepen interdisciplinary research on graphic signs” (7) of the third through tenth centuries, with contributions from archaeologists, historians, art historians, a philologist, and a paleographer. Ildar Garipzanov’s introduction defines the central terms (sign, symbol, graphicacy), calls for supplanting the text-image binary with “the concept of the visual-written continuum” (15), and argues that graphicacy was central to visual communication in this period. He emphasizes the agency of graphic signs and notes that their study can amplify our understanding of the definition of personal and group identity, the articulation of power, authority, and religious affiliation, and communication with the supernatural sphere.


1990 ◽  
Vol 22 (3-4) ◽  
pp. 291-298
Author(s):  
Frits A. Fastenau ◽  
Jaap H. J. M. van der Graaf ◽  
Gerard Martijnse

More than 95 % of the total housing stock in the Netherlands is connected to central sewerage systems and in most cases the wastewater is treated biologically. As connection to central sewerage systems has reached its economic limits, interest in on-site treatment of the domestic wastewater of the remaining premises is increasing. A large scale research programme into on-site wastewater treatment up to population equivalents of 200 persons has therefore been initiated by the Dutch Ministry of Housing, Physical Planning and Environment. Intensive field-research work did establish that the technological features of most on-site biological treatment systems were satisfactory. A large scale implementation of these systems is however obstructed in different extents by problems of an organisational, financial and/or juridical nature and management difficulties. At present research is carried out to identify these bottlenecks and to analyse possible solutions. Some preliminary results are given which involve the following ‘bottlenecks':-legislation: absence of co-ordination and absence of a definition of ‘surface water';-absence of subsidies;-ownership: divisions in task-setting of Municipalities and Waterboards; divisions involved with cost-sharing;-inspection; operational control and maintenance; organisation of management;-discharge permits;-pollution levy;-sludge disposal. Final decisions and practical elaboration of policies towards on-site treatment will have to be formulated in a broad discussion with all the authorities and interest groups involved.


Author(s):  
Anatoly S. Kuprin ◽  
Galina I. Danilina

The purpose of this study is the analysis of limit situation in the narrative of war. The material of the study is the novel of Daniil Granin “My Lieutenant” and related texts. In the first part of the paper, the authors explore existing approaches to the term “limit situation” and similar concepts into scientific and philosophical traditions; limits of its applicability in literary studies and its relation to the categories of “narrative instances” and “event”. Proposed a literary-theoretical definition of the limit situation, which can be used in the analysis of fiction texts. Existing approaches to the examination of the situation of war are analyzed: philosophical-existential, psychoanalytic, sociological, literary. In the second part of the paper, the authors propose their method for analyzing limit situations in texts about war, which basis on existing approaches and preserves the text-centric principle of studying the structure of the story. Two interrelated areas of research have been identified: the study of war as a continuous limit situation in the intertextual aspect (the discourse of war); the study of limit situations (death, suffering, guilt, accident) in the narrative of war as part of a specific text. In the third part of the scientific work,the analysis of war as a continuous limit situation results in the study of the concept of “limit” (border) in a fiction text. The role of “limit” (border) concept in the texts about the war is studied, the possible types of limits in the discourse of war are examined. Limit situations in the narrative of war are analyzed on the basis of the novel “My Lieutenant” by Daniil Granin. A review of journalistic and scientific works about the novel revealed both the continuity and the differences between the novel and the “lieutenant” prose of the 20th century. An analysis of the limit situations in the novel revealed their key position in the narrative. These situations are independent of the fiction time, of the fluctuation of the point of view’; the function of the abstract author is to build the narrative as a “directive” immersion of the hero and narrator in these situations.


2019 ◽  
Vol 29 (5) ◽  
pp. 135-150

The springboard for this essay is the author’s encounter with the feeling of horror and her attempts to understand what place horror has in philosophy. The inquiry relies upon Leonid Lipavsky’s “Investigation of Horror” and on various textual plunges into the fanged and clawed (and possibly noumenal) abyss of Nick Land’s work. Various experiences of horror are examined in order to build something of a typology, while also distilling the elements characteristic of the experience of horror in general. The essay’s overall hypothesis is that horror arises from a disruption of the usual ways of determining the boundaries between external things and the self, and this leads to a distinction between three subtypes of horror. In the first subtype, horror begins with the indeterminacy at the boundaries of things, a confrontation with something that defeats attempts to define it and thereby calls into question the definition of the self. In the second subtype, horror springs from the inability to determine one’s own boundaries, a process opposed by the crushing determinacy of the world. In the third subtype, horror unfolds by means of a substitution of one determinacy by another which is unexpected and ungrounded. In all three subtypes of horror, the disturbance of determinacy deprives the subject, the thinking entity, of its customary foundation for thought, and even of an explanation of how that foundation was lost; at times this can lead to impairment of the perception of time and space. Understood this way, horror comes within a hair’s breadth of madness - and may well cross over into it.


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