scholarly journals Akkalkan deposit of bentonite clays (Southeast Kazakhstan): formation conditions and prospects for technological use

2019 ◽  
Vol 61 (5) ◽  
pp. 84-95
Author(s):  
V. V. Nasedkin ◽  
N. M. Boeva ◽  
A. L. Vasiliev
Keyword(s):  
Raw Materials ◽  
Technological Properties ◽  
Lamellar Texture ◽  
Mineralogical Study ◽  
Formation Conditions ◽  
Black Plastic ◽  
Bentonite Clays ◽  
Relationship Of ◽  
The Relationship ◽  
Eastern Kazakhstan

The article presents the results of the bentonite clays study of Akkolkanskoye deposit, located in South-Eastern Kazakhstan. Based on the mapping, four main types of bentonites were identified: light gray argillite-like clay; dark gray clay lamellar and crushed stone morphology; waxy light brown and pale yellow clay lamellar texture; black plastic clay. Mineralogical study of these varieties allowed to establish the relationship of crystal-morphological features of the main rock-forming mineral in clays with the conditions of their formation and with the technological properties of bentonite raw materials for use in various industries.

scholarly journals Coal Mining and Post-Metallurgic Dumping Grounds and Their Connections with Exploitation of Raw Materials in the Region of Ruda Śląska

2017 ◽  
Vol 62 (2) ◽  
pp. 301-311 ◽  
Author(s):  
Iwona Jonczy ◽  
Łukasz Gawor
Keyword(s):  
Coal Mining ◽  
Raw Materials ◽  
Waste Material ◽  
Metallurgical Waste ◽  
Secondary Use ◽  
Waste Dumps ◽  
Relationship Of ◽  
The Relationship

Abstract Characteristics of mining and metallurgical waste dumps in Ruda Śląska was presented in this article. Special attention was paid to the relationship of waste material accumulated on the dumps with resources exploited on studied area. The possibilities of dumps management were also traced and two directions were indicated. The first one is associated with forming a biological covering on the dumps and the second one - with the dumps liquidation and with recovery areas now occupied by the dumps and thus with the secondary use of material collected on them.

scholarly journals Formation features and a geodynamic map of the Ural-Timan-Paleo-Asian segment of Eurasia

LITOSFERA ◽  
2020 ◽  
Vol 20 (5) ◽  
pp. 607-629
Author(s):  
V. A. Koroteev ◽  
V. M. Necheukhin ◽  
V. A. Dushin ◽  
E. N. Volchek
Keyword(s):  
Time Intervals ◽  
Subsequent Transformation ◽  
The North ◽  
Upper Proterozoic ◽  
Geological Information ◽  
Formation Conditions ◽  
Orogenic Belts ◽  
Relationship Of ◽  
The Relationship ◽  
North Western

Research subject. This article is devoted to the formation features of the Ural-Timan-Paleo-Asian segment of Eurasia. Materials and methods. The research was based on the authors’ data and those obtained following a review of available publications on the geology of segmentation. The Timan region was investigated using the geological information obtained by V.G. Olovyanishnikov.Results. A geodynamic map of the Ural-Timan-Paleo-Asian segment with a scale of 1 : 2 500 000 was compiled, which allowed further research into the structure and formation of the north-western part of the Eurasian area. This part was found to be mostly composed of geodynamic associations of orogens, orogenic systems and orogenic belts of the Upper Proterozoic (Riphean) and Paleozoic time intervals, as well as by elements of the Mesozoic-Cenozoic neoplate. These processes were supplemented by the formation of tectonic systems of superimposed depressions and protoplate protrusions. The formation of orogens, orogenic systems and orogenic belts is associated with the development and subsequent transformation of paleooceanic basins under the conditions of accretion and collision. The terranes of the ancient continental crust also participated in the formation of the segment’s geodynamic elements, for which a typification scheme was proposed. The articles present new data on the formation conditions of the segment’s orogenic elements and the relationship of the orogeny with global reconstructions, including the problem of closing the surrounding oceanic space.

The Relationship between the Micromeritic Properties of Mixture and Raw Materials: Microcrystalline Cellulose and Herba sarcandrae Extract

2013 ◽  
Vol 781-784 ◽  
pp. 1037-1043 ◽  
Author(s):  
Zheng Gen Liao ◽  
Liang Shan Ming ◽  
Jing Zhang ◽  
Nan Zhang ◽  
Shao Jin Zhong ◽  
...  
Keyword(s):  
Binary Mixture ◽  
Microcrystalline Cellulose ◽  
Raw Materials ◽  
Theoretical Calculations ◽  
Angle Of Repose ◽  
Before And After ◽  
Relationship Of ◽  
Tapped Density ◽  
The Relationship ◽  
Physical Quantities

Microcrystalline Cellulose andHerba Sarcandraewere used to study the properties and relationship of powders before and after blending. The theoretical values of the physical quantities of the binary mixture were calculated based on the random mixing theory, The measured values of particle size specific surface area, pore volume and angle of repose of binary mixture had larger values than that of theoretical calculations. Whereas, tapped density and bulk density had a smaller value. The results suggested that the mixing behavior was not a complete random, arbitrary or simple superposition of the operation for coarse and sticky particles. The mixing process would create novel particles and physical quantities of novel particles exist regular changes.

Indigenizing Shakespeare in South Africa

2017 ◽  
Author(s):  
Adele F. Seeff
Keyword(s):  
South Africa ◽  
South African ◽  
Raw Materials ◽  
Black South African ◽  
Film And Television ◽  
Public Property ◽  
And Gender ◽  
Relationship Of ◽  
Global And Local ◽  
The Relationship

In 2008, the South African Broadcasting Corporation (SABC) aired four updatings of Shakespeare’s plays in vernacular languages, using local settings and black South African actors. This chapter offers an analysis of three of these cultural appropriations in order to illustrate the two-way traffic between the global and the local. In this exchange, the raw materials of Shakespeare’s texts are reassembled to work out local anxieties about national identity, race, class, and gender in contemporary South Africa. This chapter probes the relationship of the global to the local in a setting dense with particularities of histories, language practice, and gender, class, and race hierarchies. Shakespeare’s role as a globalized public property, performances disseminated through electronic technologies and international film and television codes, facilitates a complex indigenizing process in post-apartheid South Africa as global and local engage in reciprocal artistic transformation.

Factors Influencing Bonding Strength of Geopolymer-Aggregate Interfacial Transition Zone

2011 ◽  
Vol 224 ◽  
pp. 1-7 ◽  
Author(s):  
Qing Wang ◽  
Zhao Yang Ding ◽  
Jing Da ◽  
Kun Ran ◽  
Zhi Tong Sui
Keyword(s):  
Transition Zone ◽  
Bonding Strength ◽  
Raw Materials ◽  
Transitional Zone ◽  
Interfacial Transition Zone ◽  
Molar Ratio ◽  
Oxide Component ◽  
Commercial Applications ◽  
Relationship Of ◽  
The Relationship

Fundamental studies on geopolymer are increased rapidly because of its potential commercial applications. However, little work has been done on the relationship of the interfacial transitional zone between geopolymer and aggregate and its influence on the final chemical and physical properties of geopolymeric products derived from waste materials. In this paper, factors that influencing the interfacial transition zone of geopolymer concrete such as the type of the aggregate and the oxide compositions of raw materials was studied. The microstructure was also observed through relative devices. The presented results show that bonding strength of geopolymer-marble interfacial transitional zone, of which the 28d bonding strength reached up to 7.9 MPa, was higher than that of geopolymer-granite. The bonding strength of geopolymer-marble/geopolymer-granite interfacial transitional zone increased and finally reached up to 7.9 MPa/4.3 MPa with the molar ratio of n(SiO2)/n(Al2O3) increased within the range of 2.6～2.9. Both geopolymer-marble and geopolymer-granite bonding strength decreased as the molar ratio of n(SiO2)/ n(Na2O) increased. The mechanical properties of interfacial transitional zone between geopolymer and stone were affected by the oxide component of the geopolymer and the type of the raw materials.

The Relationship of Porous Silicon Film Morphology to The Photoluminescence Spectra

1993 ◽  
Vol 298 ◽  
Author(s):  
John Penczek ◽  
R. L. Smith
Keyword(s):  
Porous Silicon ◽  
Silicon Film ◽  
Blue Shift ◽  
Electrochemical Process ◽  
Porous Films ◽  
Pl Spectra ◽  
Formation Conditions ◽  
Relationship Of ◽  
Silicon Dissolution ◽  
The Relationship

AbstractPhotoluminescence (PL) spectra are presented for porous silicon samples formed under various formation conditions in aqueous HF solutions. Formation conditions are chosen that effect maximal changes in morphology of resultant films and that correspond to varying formation electrochemistry. The trends in PL center wavelength and full width at half maximum (FWHM) with formation conditions are examined and compared to the resulting morphology. The PL spectra were observed to be most affected by changes in formation conditions when porous films are formed where the electrochemical process of silicon dissolution changes from a 2e- to 4e- (oxide production) reaction. Under these conditions, decreasing HF concentration and/or increasing current density produces a spectral blue-shift which is proportional to the narrowing of the FWHM. This behavior corresponds to morphology changes which are consistent with the quantum confinement model.

scholarly journals OPERATIONAL MANAGEMENT AND SUSTAINABLE DEVELOPMENT FOR INDUSTRIAL PROCESSES

2018 ◽  
Vol 28 (4) ◽  
pp. 1427-1431
Author(s):  
Saso Dodevski
Keyword(s):  
Production Process ◽  
Operations Management ◽  
Raw Materials ◽  
Control Process ◽  
Management Control ◽  
Level Control ◽  
Business Operations ◽  
Operational Management ◽  
Relationship Of ◽  
The Relationship

Operations management is an area of management concerned with overseeing, designing, and controlling the process of production and redesigning business operations in the production of goods or services. It involves the responsibility of ensuring that business operations are efficient in terms of using as few resources as needed, and effective in terms of meeting customer requirements. It is concerned with managing the process that converts inputs (in the forms of raw materials, labor, and energy) into outputs (in the form of goods and/or services).The relationship of operations management to senior management in commercial contexts can be compared to the relationship of line producers to highest-level of production process. Management, including operations management, is like engineering in that it blends art with applied science.Operation management (control) of the productive process consists of: operational planning, delivery control, process monitoring and operational registration. In operating system management objectives define the required results (Wz) the production process, given the operational system plans. As which he defines not only objective, but also the development of the manufacturing process to observe the given goals (structure, tasks, and sequence operating plan). Operational management is a multi- level control system,The process of producing new energetic drink L-Carnitine, “Gora” , drinking water in various volumes, juices various volumes and other products.

scholarly journals Information estimate of natural geosystem preservation in geoconstruction

2019 ◽  
Vol 265 ◽  
pp. 06007
Author(s):  
Larisa Svatovskaya ◽  
Kseniia Mikhailova ◽  
Tatyana Supeliuk ◽  
Anatoliy Kniazev
Keyword(s):  
Life Cycle ◽  
Fuel Consumption ◽  
Raw Materials ◽  
Expert Assessment ◽  
The Real ◽  
Weight Factors ◽  
Rating Method ◽  
Relationship Of ◽  
The Relationship

The area of the research is natural geosystem preservation in geoconstruction. The aim of the research is introduction of information assessment of preservaton level using total geoecological parameter in geoconstruction. Three features were chosen as the main geoecological information features of the estimate, prediction and geosystem preservation management, they are: natural raw materials consumption, fuel consumption and useful properties of a mineral geostructure with the end of the life-cycle. Rating method is suggested as a method of the rasearch;it includes conversion of the properties, using certain mathimatical operations into dimensionless values named index of properties. By determining weight factors with the help of expert assessment and bydetermining the sum of productions of indices and coefficients as total geoecological parameter, the study shows the relationship of the latter with the values of the real consumption of natural raw materials, fuel and useful properties of wastes with the end of the life-cycle of a geostructure. Also the study suggests the achieved levels of the preservation and predicted increase of the level takinginto consideration the total geoecological parameter. The results can be used for estimate of any geotechnology in the preservation aspect.

scholarly journals Morfometri Portunus pelagicus, Linnaeus, 1758 (Malacostraca : Portunidae) dari Perairan Jobokuto, Jepara

2019 ◽  
Vol 8 (3) ◽  
pp. 299-306
Author(s):  
Yuftah Rizkasumarta ◽  
Adi Santoso ◽  
Endang Sri Susilo
Keyword(s):  
High Frequency ◽  
Raw Materials ◽  
Rapid Development ◽  
Growth Characteristic ◽  
Carapace Width ◽  
Economic Value ◽  
Portunus Pelagicus ◽  
A Value ◽  
Relationship Of ◽  
The Relationship

Rajungan (Portunus pelagicus) memiliki nilai ekonomi tinggi, tetapi keberadaannya secara alami berhadapan dengan tingkat penangkapan yang semakin meningkat. Pesatnya perkembangan perusahaan eksportir rajungan dengan bahan baku yang bersumber dari hasil tangkapan nelayan, mengakibatkan sangat banyaknya nelayan yang melakukan penangkapan. Penangkapan rajungan dengan frekuensi tinggi dan terus-menerus tanpa memperhatikan ukuran serta kondisi rajungan, berpotensi mengurangi stok rajungan di perairan. Penelitian ini bertujuan untuk mengetahui distribusi ukuran, serta hubungan lebar karapas dengan berat rajungan yang didaratkan dari perairan Jobokuto, Jepara. Hasil dari penelitian ini menunjukkan, dari 1500 rajungan yang diamati diketahui bahwa distribusi lebar karapas berkisar 10,50-11,30 cm, dan berat berkisar  75-104 gram. Hubungan lebar karapas dengan  berat rajungan menghasilkan nilai b sebesar 1,68 untuk rajungan jantan dan 2,80 untuk rajungan betina, sehingga baik rajungan jantan maupun betina pertumbuhannya bersifat allometrik negatif. Sifat pertumbuhan ini menunjukkan bahwa pertumbuhan lebar karapas lebih cepat dibandingkan pertumbuhan berat rajungan. Persentase penggunaan alat tangkap oleh nelayan rajungan Jepara adalah Bubu (91%), dan Jaring (9%).The blue swimming crab (Portunus pelagicus) has a high economic value, but its existence is naturally faced with increasing fishing rates. The rapid development of crab exporters with raw materials sourced from fishermen's catches has resulted in very many fishers making arrests. Catching the crab with high frequency and continuously without regard to the size and condition of the crab has the potential to reduce the crab stock in the waters. This research aimed to determine the size distribution, as well as the relationship of carapace width to the weight of the crab,  landed from the seas of Jobokuto, Jepara. The results of this study indicated that of the 1500 crabs observed, the distribution of carapace width ranged from 10.50 to 11.30 cm, and the weight ranged from 75 to 104 grams. The relationship between carapace width and crab weight had a value of b of 1.68 for male crabs and 2.80 for female crabs so that both male and female crabs have negative allometric growth. This growth characteristic showed that carapace width growth is faster than the growth of crab weight. The percentage of fishing gear used by Jepara crab fishermen is Bubu (91%), and Net (9%).

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