scholarly journals DEPOSITS OF BRONZE SMALL TWIGS IN MIDDLE ROS BASIN

2019 ◽  
Vol 31 (2) ◽  
pp. 514-517
Author(s):  
V. V. Romanuik
Keyword(s):  
Spectral Analysis ◽  
Raw Materials ◽  
Titanium Content ◽  
Total Weight ◽  
High Quality ◽  
Tin Bronze ◽  
Bronze Casting ◽  
Natural Impurity ◽  
Casting Production

In the article the noticeable role of bronzocasting production is considered on the settler monuments of scythian time in the Tarashchanskiy district of the Kyiv area. Among the numerous testimonies of bronze casting production and trade in metals the two most interesting items are bronze treasures, recently discovered in the villages of Lisovichi and Dibrovka in Kyiv region. Each contained about 300 bars with a length of 40.5 and 22 cm (Lisovichi), 41 cm (Dibrovka), total weight about 30 kg. We can assume a different purpose of bronze bars: blanks for specific products, raw materials for smelting, the equivalent of money. Spectral analysis of the products showed that they are made of high-quality tin bronze with a high admixture of iron (2.58 %, Lisovichi). Titanium content (4.39 %, Lisovichi) remains unclear (is it a natural impurity in raw materials?) According to the place of discovery (on settlements), treasures of bars can be dated to Scythian time (the end of 6th—5th century BC?), although more late dates are not excluded.

scholarly journals RURAL IRONWORKING CRAFT IN THE MEDIEVAL RUSSIA PRODUCTION SYSTEM

2021 ◽  
pp. 369-383
Author(s):  
В. И. Завьялов ◽  
Н. Н. Терехова
Keyword(s):  
Multivariate Analysis ◽  
Production System ◽  
Raw Materials ◽  
Technological Innovations ◽  
High Quality ◽  
Production Culture

Получить полноценную характеристику производственной культуры Древней Руси невозможно без изучения роли сельского ремесла. Многофакторный анализ археометаллографических данных позволил сделать вывод о том, что сельское ремесленное производство представляло гораздо более сложное явление, чем виделось ранее. Древнерусское село не только служило поставщиком сырья в городские ремесленные центры и производило простую в технологическом отношении продукцию, но и воспринимало технологические инновации. Сельские мастера сами могли производить качественные кузнечные изделия и снабжали ими ближайшую округу. It is not possible to obtain full characteristics of the Medieval Russia production culture without examining the role of rural crafts. Multivariate analysis of archaeometallographic data made it possible to conclude that rural crafts were a much more sophisticated phenomenon than previously thought. A village in Medieval Russia not only supplied raw materials to craft centers and manufactured technologically simple products but also adopted technological innovations. Rural craftsmen were able to produce high-quality blacksmith products and supplied them to the nearby population.

Mineralogical applications of the analytical SEM in archaeology

1987 ◽  
Vol 51 (359) ◽  
pp. 21-31 ◽  
Author(s):  
I. C. Freestone ◽  
A. P. Middleton
Keyword(s):  
Elemental Analysis ◽  
Raw Materials ◽  
Energy Dispersive Spectrometer ◽  
Energy Dispersive ◽  
High Quality ◽  
Mineralogical Investigation ◽  
Modern Analytical ◽  
Quality Imaging

AbstractThe modern analytical SEM, which can provide high-quality imaging facilities together with quantitative elemental analysis using an energy-dispersive spectrometer, is finding wide application in the investigation of archaeological problems. Many of these investigations involve the study of silicate and carbonate-based artefacts which may be relatively unmodified from their original geological parent raw materials so that mineralogically based interpretations are often appropriate. In this paper we present a series of examples illustrating the role of the analytical SEM in the mineralogical investigation of archaeological problems, including the characterization and provenancing of geological raw materials, the elucidation of the processes used to transform those raw materials into useful objects and the recognition and characterization of changes which archaeological artefacts may have undergone during burial or during storage.

scholarly journals Production Contracts and Food Quality: A Transaction Cost Analysis for the Italian Durum Wheat Sector

2021 ◽  
Vol 13 (5) ◽  
pp. 2921
Author(s):  
Angelo Frascarelli ◽  
Stefano Ciliberti ◽  
Gustavo Magalhães de Oliveira ◽  
Gabriele Chiodini ◽  
Gaetano Martino
Keyword(s):  
Cost Analysis ◽  
Durum Wheat ◽  
Raw Materials ◽  
Asset Specificity ◽  
Factor Analyses ◽  
High Quality ◽  
Contractual Arrangements ◽  
Production Contracts ◽  
Shed Light

Agribusiness firms requiring a consistent supply of high quality agricultural raw materials have increasingly adopted production contracts to coordinate their supply chains. The present work is aimed to shed light on the role played by sources of asset specificity and uncertainty related to quality strategies in the diffusion of contractual arrangements within the Italian durum wheat sector. To this purpose, factor analyses and probit regressions are estimated in data collected among durum wheat producers. The findings confirm that the role of asset specificity is negligible in presence of staple crops. Moreover, they reveal that experience, transparency and technological stability are all relevant aspects that reduce uncertainty and, in turn, trigger the adoption of production contracts as a governance solution for durum wheat.

scholarly journals Modeling of mechanism of obtaining mesostructural coal matrix in pyrolysis processes.

2021 ◽  
Author(s):  
Valeriy Kotelnikov ◽  
Elena Ryazanova ◽  
Olesya Ershova
Keyword(s):  
Monte Carlo ◽  
Monte Carlo Method ◽  
Energy Balance ◽  
Coal Combustion ◽  
Raw Materials ◽  
Metallurgical Industry ◽  
Deep Processing ◽  
High Quality ◽  
Pyrolysis Processes

Abstract Reducing the role of coal in the energy balance of countries and the whole world sets the task of improving coal combustion technologies and creating new environmentally friendly processes for deep processing of coal. The production of high-quality raw materials for the metallurgical industry and other industries is a strategic task for the development of the country. In this study we try to use an Monte Carlo method to analyze and modeling of coke producing process in the device for continuous pyrolysis of organic materials in a thermally loaded layer.

Towards effective regulation of the development of the Russian mineral resource complex: issues of industrial policy and corporate management

2021 ◽  
pp. 65-80
Author(s):  
Yu. B. Vinslav
Keyword(s):  
Mineral Resource ◽  
Industrial Policy ◽  
Raw Materials ◽  
Methodological Approach ◽  
Added Value ◽  
Corporate Management ◽  
High Quality ◽  
Environmental Friendliness ◽  
Key Factor

The article systematizes the main governance factors for ensuring the effective functioning of the mineral and raw materials complex (MRMC) of Russia and its rapid, sustainable and high-quality growth. The role of industrial policy as a key factor in the rational reproduction and diversification of the mineral resource complex is emphasized. Examples of innovative development of the complex in the aspects of increasing the output of high added value products and improving the environmental friendliness of production are given. Recommendations for improving the governance of exploration activities are given. A methodological approach to the governance of unified production and technological chains in the mineral resource complex is proposed. The author formulates the considerations concerning the activation of innovative activity of the complex companies based on the improvement of corporate management.

Making Movies and Community of Talent

2019 ◽  
Vol 10 (11) ◽  
pp. 1057-1064
Author(s):  
Katsuhiko Hirasawa ◽  
Keyword(s):  
Shop Floor ◽  
High Quality ◽  
Democratic Leadership ◽  
Staff Members

Staff members at a movie company Daiei, known for presumably the world’s best film technology, continued to produce movies for several months even after the company went bankrupt. It was because they desired to make outstanding films. A director can create a high-quality film by combining the skills and ideas of such staff. Akira Kurosawa named the group that could produce excellent works the “Community of Talents”. By using research on a community as a clue, this paper aims to highlight how the “Community of Talents” is organized. First I point out that a “Community of Talents” is formulated primarily by the labor of the staff based on Kumazawa’s “Community on the Shop Floor”. The paper subsequently refers to research by Heinrich Nicklish, a representative researcher on the study of community in Germany, in an attempt to verify that the community is a group of people established on functions. Lastly, the paper explores Guido Fisher’s research to reveal the role of democratic leadership centered on the director who transforms the objectified staff in the organization into an independently-minded presence and help them prove their abilities. The paper continues to emphasize the significance of leadership in the formation of the “Community of Talents”.

TECHNOLOGICAL ASPECTS OF HIGH QUALITY RAW MATERIAL OBTAINING FOR PECTIN PRODUCTION

1970 ◽  
pp. 47-50
Author(s):  
I. A. Ilina ◽  
I. A. Machneva ◽  
E. S. Bakun
Keyword(s):  
Raw Materials ◽  
Thermal Characteristics ◽  
Environmental Safety ◽  
Raw Material ◽  
High Quality ◽  
Temperature Conductivity ◽  
Drying Temperature ◽  
Plant Raw Materials ◽  
Gel Forming Ability

  The article is devoted to the study of the chemical composition, physical and thermal-pfysical characteristics of damp apple pomaces and the identifying patterns of influence of drying temperature the functional composition and gel-forming ability of pectin. The research is aimed at obtaining initial data for the subsequent calculation of the main technological, hydro-mechanical, thermal, structural and economic characteristics of devices for drying the plant raw materials, ensuring the environmental safety and high quality of pectin-containing raw materials, the reducing heat and energy costs. As a result of the study of the thermal characteristics of apple pomaces, the critical points (temperature conductivity – 16.5 x 10-8 m2/s, thermal conductivity – 0.28 W/m K, heat capacity – 1627 j/(kg K)) at a humidity of 56 % are determined, which characterizing the transition from the extraction of weakly bound moisture to the extraction of moisture with strong bonds (colloidal, adsorption). It was found that the pomaces obtained from apples of late ripening have a higher content of solids (21-23 %), soluble pectin and protopectin (2.5-4.5 %). Dried pomaces obtained from apple varieties of late ripening contain up to 25 % pectin, which allow us to recommend them as a source of raw materials for the production of pectin. The optimum modes of preliminary washing of raw materials are offered, allowing to the remove the ballast substances as much as possible. It is established that when the drying temperature increases, the destructive processes are catalyzed: the strength of the pectin jelly and the uronide component and the degree of pectin esterification are reduced. The optimum drying temperature of damp apple pomaces is 80 0C, at which the quality of pectin extracted from the dried raw materials is maintained as much as possible. It is shown that the most effective for the pectin production is a fraction with a particle size of 3-5 mm, which allow us to extract up to 71 % of pectin from raw materials.

GREEN BONDS AS A NEW FINANCIAL INSTRUMENT

2020 ◽  
Vol 3 (7) ◽  
pp. 98-102
Author(s):  
M. V. DUBROVA ◽  
◽  
N. N. ZHILINA ◽  
Keyword(s):  
Raw Materials ◽  
Financial Burden ◽  
Environmental Problems ◽  
Green Economy ◽  
Non Profit ◽  
The Public ◽  
Economic Problems ◽  
Green Finance ◽  
Non Profit Organizations

The relevance of the article is determined by the fact that in Russia there is no effective mechanism of state support for the activities of non-profit organizations in the field of “green Finance”. The role of non-profit organizations is leveled, which can become a serious help in solving economic problems, in particular, the problems of recycling and processing of secondary raw materials, the placement of industrial waste and household garbage, and landscaping of large megacities. The main financial burden in the field of “green economy” falls on States and large enterprises. Meanwhile, we cannot ignore the important role of non-profit organizations that can not only draw attention to environmental problems to the public, but also offer their own measures to solve environmental problems. In this regard, it becomes relevant to consider the participation of non-profit organizations in the implementation of environmental projects by attracting “green Finance”.

POTENTIAL DEVELOPMENT OF «GREEN BONDS» IN THE RUSSIAN ECONOMY

2020 ◽  
Vol 1 (8) ◽  
pp. 119-123
Author(s):  
M. V. DUBROVA ◽  
◽  
N. N. ZHILINA ◽  
Keyword(s):  
Raw Materials ◽  
Financial Burden ◽  
Environmental Problems ◽  
Green Economy ◽  
Non Profit ◽  
Russian Economy ◽  
Green Finance ◽  
Potential Development ◽  
Non Profit Organizations

he relevance of the article is determined by the fact that in Russia there is no effective mechanism of state support for the activities of non-profit organizations in the field of «green Finance». The role of non-profit organizations is leveled, which can become a serious help in solving economic problems, in particular, the problems of recycling and processing of secondary raw materials, the placement of industrial waste and household garbage, and landscaping of large megacities. The main financial burden in the field of «green economy» falls on States and large enterprises. Meanwhile, we cannot ignore the important role of non-profit organizations that can not only draw attention to environmental problems to the public, but also offer their own measures to solve environmental problems. In this regard, it becomes relevant to consider the participation of non-profit organizations in the implementation of environmental projects by attracting «green Finance».

When Do Auditors Use Specialists' Work to Improve Problem Representations of and Judgments about Complex Estimates?

2017 ◽  
Vol 93 (4) ◽  
pp. 177-202 ◽  
Author(s):  
Emily E. Griffith
Keyword(s):  
Pattern Recognition ◽  
Situational Factors ◽  
Situational Factor ◽  
High Quality ◽  
Quality Audit ◽  
Domain Specific ◽  
Epistemic Motivation ◽  
Specific Expertise ◽  
Problem Representations

ABSTRACT Auditors are more likely to identify misstatements in complex estimates if they recognize problematic patterns among an estimate's underlying assumptions. Rich problem representations aid pattern recognition, but auditors likely have difficulty developing them given auditors' limited domain-specific expertise in this area. In two experiments, I predict and find that a relational cue in a specialist's work highlighting aggressive assumptions improves auditors' problem representations and subsequent judgments about estimates. However, this improvement only occurs when a situational factor (e.g., risk) increases auditors' epistemic motivation to incorporate the cue into their problem representations. These results suggest that auditors do not always respond to cues in specialists' work. More generally, this study highlights the role of situational factors in increasing auditors' epistemic motivation to develop rich problem representations, which contribute to high-quality audit judgments in this and other domains where pattern recognition is important.

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