scholarly journals Influence of surface-active substances on the processes of agglomeration when the secondary resources are using

2018 ◽  
pp. 80-92
Author(s):  
A.S. Nesterov ◽  
L.I. Garmash ◽  
M.G. Boldenko ◽  
O.A. Vergun ◽  
K.P. Lopatenko
Keyword(s):  
Gas Permeability ◽  
Raw Materials ◽  
Strength Properties ◽  
Liquid Phase Sintering ◽  
Water Soluble ◽  
Resource Base ◽  
Charge Materials ◽  
Metallurgical Wastes ◽  
The Cost

A promising method of intensifying the process of sinter preparation preparation was investigated by using surfactants as an additional binding material. It is shown that surfactants provide efficient compaction of charge materials. The use of water-soluble surfactant additives (aminocrylate of various compositions) when moistening the charge in the blending and pelletizing of charge materials positively affects the sintering performance and the quality of the finished sinter. An increase in the strength of the agglomerate during recovery, a decrease in abrasion, and an increase in the temperature of the maximum melt filtration were noted. An increase in the recoverability of the agglomerate and the associated decrease in the “aggressiveness” of primary slags were also observed. When using surfactants, the duration of the process was reduced, and the vertical sintering rate increased from 1.0-1.8% to 6.1-8.5%. The yield of the charge has increased by 0.4-2.4%, the strength index - by 0.4-2.2%. Analysis of the results of laboratory studies confirmed that the introduction of surfactants in moisturizing water can improve the quality of the mixture. In particular, the gas permeability of the charge is improved, the best conditions for burning solid fuel and the process of liquid-phase sintering are provided, and the strength properties of the finished product are enhanced. The involvement of a part of metallurgical wastes in the fermentation domain complex allows to significantly expand the resource base of iron ore components, reduce the cost of input raw materials and improve the environmental situation.

scholarly journals Construction sands of Podillya: patterns of distribution, resources and use

2019 ◽  
Vol 27 (3) ◽  
pp. 510-519
Author(s):  
M. Syvyj ◽  
B. Gavrychok
Keyword(s):  
Raw Materials ◽  
Raw Material ◽  
Simultaneous Increase ◽  
Clay Material ◽  
Material Base ◽  
Resource Base ◽  
Apparent Correlation ◽  
The Baltic ◽  
Further Development

This article presents the characteristics of the resource base of building sands within the three Podillya regions, the patterns of sands distribution, and proposals for increasing the extraction of raw materials . The construction sands of Podillya are confined to the Upper Cretaceous, Neogene and Anthropogenicdeposits. The decrease of the thickness of the sandy strata of the Opilsk Neogene suite in the eastern direction was observed with the simultaneous increase in the thickness of the overlapping strata of the rocks. There is no apparent correlation between the thickness of sandy interlayers and the quality of sands. The interdependence of the chemical composition of Neogene sands and the sand size module is established.The genetic predisposition for the distribution of building sands in different parts of the Podillya territory has been established. Four groups of sand deposits of different age have been identified within the Podillya regions, which contrast sharply with single deposits in the neighbouring territories.There is a very uneven distribution of explored reserves of sandy raw materials across the region and accordingly in the provision of construction sands in the different oblasts /regions of Podillya. The areas best provided with sandy raw materials are the central districts of Ternopil region and Slavutsky district of Khmelnytsky region . Sands of the Baltic stage distributed in Vinnytsia region are mostly poor in quality, clogged with clay material and require enrichment. The further development of the mineral raw material base and the prospects for increasing the production of construction sand in the Podillya regions is associated with the increase in production at the prepared deposits, the commissioning of reserve deposits, the conducting of prospecting and exploration work in the proposed potentially exploitable areas and additional exploration of individual deposits that are exploited. The research allows us to evaluate objectively the existing base of sand raw materials for various purposes in the Podillya region and to develop on this basis measures to increase it. The importance of the study is determined by the acute shortage of the raw material in most administrative districts of Khmelnytsky and Vinnytsia regions, by the growth in the volume of construction work (and accordingly the requirements for sandy raw materials) both in Podillya and in the country.

scholarly journals The Effectiveness of the Quality of Performance Using the Cost Accounting Information System in the Control of Quality Costs Study in the General Company for Electrical Industries

2019 ◽  
Vol 27 (2) ◽  
pp. 115-132
Author(s):  
Hanan Abdullah Hassan Al-Amar ◽  
Qasim Ali Omran Al-Bayati ◽  
Huda Jabbar Kadhum Al-Haiyali
Keyword(s):  
Information Systems ◽  
Raw Materials ◽  
Accounting Information ◽  
Cost Accounting ◽  
Technical Standards ◽  
Accounting Systems ◽  
Accounting Information Systems ◽  
Quality Costs ◽  
The Cost

The financial operations which carried out by economic unity are proven treatment and documenting and continuous down to makers decision by relevance objective and time and then to reflect on the decision maker in any center of responsibility. That ’s provided by the system accounting information where the source is the basis for producing important accounting information, And the cost accounting information systems of the most important information systems that deal with data processing and conversion to information of relative importance to the beneficiaries. Which is consist with The objective of the research that emphasize the importance of accounting systems in general and systems cost in particular to achieve the highest c The research has led to a number of results, the most important of which is the difficulty in controlling quality costs as well as the waste of economic resources in the company. The researchers recommended adherence to the technical standards to achieve the quality of performance as well as conducting a thorough examination of samples and focusing on the quality of raw materials and testing before use to reduce the proportion Damage.

scholarly journals Determination of the transfer step of the ore chute while mining the technogenic deposit of the bulk type

2020 ◽  
Vol 166 ◽  
pp. 02004
Author(s):  
Volodymyr Peregudov ◽  
Ihor Hryhoriev ◽  
Serhii Joukov ◽  
Yulian Hryhoriev
Keyword(s):  
Raw Materials ◽  
Mining Industry ◽  
Process Conditions ◽  
Geological Conditions ◽  
Scientific Task ◽  
Technogenic Deposit ◽  
Mining Works ◽  
The Cost

Further development of the open mining works on the domestic enterprises will be accompanied by the worsening of mining-geological conditions and declining of the quality of iron ore raw materials. In the same time, the accumulated mining wastes, that can make the technogenic deposits, pass into one of the important sources of the mineral raw materials. Taking into account this thing, the development and implementation of the modern technological circuits of the technogenic deposit development is an actual calling for mining industry, and determination and optimization of process conditions of the technogenic deposit development – is the scientific task of this publication. The obtained results of studies of the optimum step value of the ore chute transfer during the technogenic deposit development can be used by design organizations and mining enterprises for designing works. The obtained methodology and the proposed mathematical dependencies will reduce the cost of mining of the technogenic deposit due to the reasonable timely transfer of the open ore chute.

Ocean Freight Rates and Economic Development 1730-1913

1958 ◽  
Vol 18 (4) ◽  
pp. 537-555 ◽  
Author(s):  
Douglass North
Keyword(s):  
Raw Materials ◽  
Essential Feature ◽  
Western World ◽  
Crop Failure ◽  
Resource Base ◽  
Freight Rates ◽  
Ocean Shipping ◽  
Bulk Shipment ◽  
The Cost

Revolutionary developments in transport have been an essential feature of the rapiddevelopments in transportgrowth of the past two centuries. Reduction in the cost of carriage has enabled specialization and division of labor on a national and international basis to replace the relatively self-sufficient economies that predominated in the western world two centuries ago. The striking role of the railroad in the nineteenth century is well known. However, it was water transport in which the bulk shipment of commodities began, and it was the development of ocean shipping that was an integral aspect of die growing economic interdependence of the western world, the opening up of the undeveloped continents, and the promotion of the settlement of the “empty lands.” The declining cost of ocean transportation was a process of widening the resource base of the western world. The agriculture of new countries was stimulated (and that of old countries at least temporarily depressed), the specter of famine as a result of crop failure reduced, and the raw materials were provided for industrialization. In short, the radical decline in ocean freight rates was an important part of the redirection of the resources of the western world in the course of the vast development of die past two centuries.

scholarly journals REVIEW: PEMANFAATAN BROMELAIN PADA BEBERAPA PANGAN LOKAL INDONESIA

2019 ◽  
Vol 10 (1) ◽  
pp. 33
Author(s):  
Warsono El Kiyat ◽  
Kevin Reynaldo ◽  
Jeremiah Irwan ◽  
Eryd Saputra
Keyword(s):  
Local Food ◽  
Ph Value ◽  
Raw Materials ◽  
Coconut Oil ◽  
Water Soluble ◽  
Ananas Comosus ◽  
Soluble Nitrogen ◽  
Fish Sauce ◽  
Virgin Coconut Oil

Bromelain is one of the protease that can be produced from all of parts of the pineapple plants (Ananas comosus). It has potential to improve quality of local Indonesian food such as tempeh gembus, virgin coconut oil (VCO), and dumbo catfish based fish sauce (DCBFS). Tempeh gembus is a traditional food that has unique characteristics especially in its taste because it contains amino acids. VCO attracts consumers because of its health aspect. Its raw materials are available in Indonesia. DCBS  is a product of fermented fish with salt that has a distinctive taste and is produced in Indonesia. This study aimed to analyze the effect of bromelain on local Indonesian food and its applications. The result showed that the use of bromelain in local Indonesian food could improve the quality and nutritional value of local food. Bromelain can be used in local food like tempeh gembus, virgin coconut oil, and fish sauce from dumbo catfish. The use of bromelain in tempeh gembus could  increase both of the water-soluble nitrogen level and the pH value. However, the addition of bromelain in the production of virgin coconut oil and fish sauce from dumbo catfish could increase the yield of theirs. .

scholarly journals Development of Solutions for Chemical Phosphating of Carbon Steel

2020 ◽  
pp. 215-218
Author(s):  
F. Fuzaylova ◽  
V. P. Guro
Keyword(s):  
Carbon Steel ◽  
Raw Materials ◽  
Carbon Steels ◽  
Effect Of Temperature ◽  
Total Acidity ◽  
Resource Base ◽  
Local Resource ◽  
Phosphate Coatings ◽  
Elemental Chemical Analysis

A consumer in Uzbekistan imports concentrates phosphating the surface of carbon steels, such as, for example, Foscon 35 and Foscon 35K. (Russia). Work has been done to create analogs from local raw materials. Having studied the physicochemical properties of the concentrates, a mechanism for the formation of protective phosphate coatings was suggested, and the components of a new phosphating composition were selected. The aim of the work was to develop a composition of a solution for chemical phosphating of the surface of carbon steel at the local resource base. Methods used: elemental chemical analysis, electrochemical and corrosion measurements, conditionally total acidity of solutions was measured according to TU 2149-205-10964029-2004 (Russia). The effect of temperature, pH of the medium, and the exposure time of the sample in the phosphating solution on the quality of the phosphate film was studied. As a result, a phosphating composition FK-1 was developed, functionally similar to imported concentrates Foscon 35 and Foscon 35K, based on local raw materials.

scholarly journals MULTI CRITERIA SUPPLIER SELECTION USING A HYBRID FUZZY AHP- TAGUCHI TECHNIQUE: THE CASE OF TEXTILE INDUSTRY

2020 ◽  
Vol 8 (2) ◽  
Author(s):  
Wilson Kosasih ◽  
Vieren Yulies Triyani ◽  
Ahmad Ahmad ◽  
Carla Olyvia Doaly
Keyword(s):  
Textile Industry ◽  
Supplier Selection ◽  
Raw Materials ◽  
Fuzzy Ahp ◽  
Research Data ◽  
Taguchi Technique ◽  
Survey Results ◽  
The Cost ◽  
Factual Data

This paper discusses a method that integrates Fuzzy AHP with Taguchi Loss Function. The method used to select suppliers with various criteria. This various criteria will be considered to get the best supplier. This research was conducted at a textile company in Indonesia for the cotton product 41166. The purpose of this research is to apply techniques to improve the performance of Fuzzy AHP by considering the cost of losses as small as possible. Research data obtained from the survey results using questionnaires and company factual data in the form of costs of losses incurred due to improper quantity of raw materials, quality of raw materials that are not in accordance with standards, delays in delivery, prices that exceed expectations, and poor service or response. The results of this research shown the value of losses incurred by 1st, 2nd, 3rd, 4th suppliers respectively for $ 2.23, $ 671.12, $ 815.57, and $ 1243.64. Among four suppliers, the best supplier with the smallest loss value is first supplier.

scholarly journals Modelling of the process of vybromechanical activation of plant raw material hydrolysis for pectin extraction

10.5219/1305 ◽  
2020 ◽  
Vol 14 ◽  
pp. 239-246
Author(s):  
Igor Palamarchuk ◽  
Mikhailo Mushtruk ◽  
Vladislav Sukhenko ◽  
Vladislav Dudchenko ◽  
Lidija Korets ◽  
...  
Keyword(s):  
Power Consumption ◽  
Raw Materials ◽  
Equations Of Motion ◽  
Oscillatory System ◽  
Drive Shaft ◽  
Raw Material ◽  
Plant Raw Materials ◽  
The Cost ◽  
Power And Energy

Centrifugal and vibrational technological effects are among the main approaches to intensify the process of plant raw materials hydrolysis for pectin extraction. With the impulse intensification of such a process, it is possible not only to increase its efficiency, but also to achieve the compactness of the equipment, reduce the cost of electricity and improve the quality of the product of hydrolysis. The hypothesis is confirmed, according to which the vibro-centrifugal intensification of hydrolysis increases the driving force of the process by not only activating the material flows of raw materials and reagents, but also by reducing the resistance in the technological environment. Graphical and analytical dependencies of the power and energy parameters of the oscillatory system were obtained, which proved the overcoming of the flow resistance of the liquid medium in the entire speed range of the drive shaft with the potential to intensify the process at a power consumption of 2.0 – 3.0 kW and or by the force of 2.3 – 2.5 kN using the Lagrange and Cauchy methods for composing and solving the equations of motion of the moving components of the tested hydrolyser with vibrating activators, and the methods of mathematical analysis and their processing in the MathCAD. The analysis of the presented parameters of the studied process of mixing the pectin-containing mass in the hydrolyser allowed us to determine the rational mode parameters of processing, which correspond to the angular velocity of the drive shaft  rad/s at the power consumption of 500 – 600 watts.

The role of feeding in the prevention of non-communicable diseases of poultry

2019 ◽  
Author(s):  
Сергей Енгашев ◽  
Syergyey YEngashyev ◽  
Тамара Околелова ◽  
Tamara Okolelova
Keyword(s):  
Metabolic Disorders ◽  
Raw Materials ◽  
Production Costs ◽  
Biologically Active ◽  
Poisonous Plants ◽  
Minimum Requirements ◽  
The Cost ◽  
Poultry Farming

The book deals with many factors, including anti-nutritional, determining the biological value of feed components. Considerable attention is paid to the minimum requirements that must be imposed on the quality of raw materials and can be met in each economy. Provides information on poisonous plants and weeds that may be present in the plant material and cause phytotoxicity. The causes of diseases of feed nature associated with metabolic disorders, and ways to prevent them. The consequences of technological violations in poultry farming are revealed. The role of the quality of raw materials, biologically active and mineral substances in the prevention of certain diseases of forage nature, increasing the productivity of poultry, reducing the cost of feed and their production costs. It is addressed to specialists and managers of poultry farms, feed industry enterprises, researchers, postgraduates and students.

A Simplified Method of Synthesis and Purification of 4-Dimethylamino-N-Methyl -4-Stilbazolium Tosylate

2011 ◽  
Vol 686 ◽  
pp. 392-395 ◽  
Author(s):  
Fei You ◽  
Jin Sun ◽  
Bing Teng ◽  
Lin Hua Xia ◽  
Xin Xing Jiang ◽  
...  
Keyword(s):  
Raw Materials ◽  
Raw Material ◽  
Synthesis Process ◽  
X Ray Diffraction ◽  
Simple Method ◽  
Cooling Method ◽  
Xrd Study ◽  
Nmr Study ◽  
The Cost

DAST (4-dimethylamino-N-methyl-4-stilbazolium tosylate) crystal material was synthesized and purified by a relatively simple method. The synthesis process was easy to operate experimentally and the cost of raw materials can be cut down. The purification process was much easier than the previously published method. Fourier transform infrared spectrum (FTIR) was used to analyze the functional group of raw material and no extra functional groups were found. Nuclear magnetic resonance (NMR) study was performed to identify the different modes presented in the compound. The results showed that the quality of the prepared crystal raw material could meet the requirements on crystal growth. DAST crystals were grown from the synthesized raw material by slowly cooling method. The crystal structure was characterized by X-ray diffraction (XRD) study and the results showed that the crystal grown from the synthesized raw material was the same as that grown from pure DAST crystal raw material.

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