scholarly journals MATHEMATICAL MODELING OF TECHNOLOGICAL PROCESS OF COTON-CONTAINING FABRIC DECOCTION

2021 ◽  
Vol 295 (2) ◽  
pp. 264-270
Author(s):  
Oksana TKACHUK ◽  
Keyword(s):  
Technological Process ◽  
Breaking Load ◽  
Response Surfaces ◽  
Textile Material ◽  
Raw Material ◽  
Joint Stock Company ◽  
Regression Equations ◽  
Stock Company ◽  
Tissue Samples

Flax is a very valuable raw material for making fabric. The processes of preparation of flax-containing textile material are multi-stage and energy-intensive. Therefore, the development of effective methods of preparation of flax-containing textile material is relevant. In this work, the method of mathematical planning of the experiment conducted a study of the dependence of the breaking load, capillarity and the degree of whiteness of cotton-containing textile material on the concentration of components of the boiling bath. The research was carried out on a mixed polyester-cotton-linen fabric TPK-11 produced by the private joint-stock company “Edelvika” (Lutsk). Technological process of boiling was carried out periodic method on a painting- roller machine. After boiling, the tissue samples were bleached according to the recipe based on hydrogen peroxide under the same conditions. Evaluation of the quality of boiled fabric was performed on such indicators as capillarity, breaking load and degree of whiteness. Processing of research results was carried out in the program “MathCAD 15”. At the result regression equations and response surfaces was received. The analysis of the obtained results shows that the quality of preparation of mixed flax-containing fabric depends on the concentration of the components of the boiling bath, and these models allow to establish the optimal recipe regimes of the boiling process. The obtained data can be used to justify further research.

scholarly journals Evaluation of the Quality of Irrigation Machinery by Monitoring Changes in the Coefficients of Uniformity and Non-Uniformity of Irrigation

Agronomy ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 1499
Author(s):  
Ján Jobbágy ◽  
Peter Dančanin ◽  
Koloman Krištof ◽  
Juraj Maga ◽  
Vlastimil Slaný
Keyword(s):  
Repeated Measurements ◽  
Joint Stock Company ◽  
Stock Company ◽  
Uniformity Coefficient ◽  
Quality Of Work ◽  
Total Length ◽  
Irrigation Uniformity ◽  
Wide Range ◽  
The Impact

Recently, the development of agricultural technology has been focused on achieving higher reliability and quality of work. The aim of the presented paper was to examine the possibilities of evaluating the quality of work of wide-area irrigation machinery by monitoring the coefficients of uniformity and non-uniformity of irrigation. The object of the research was pivot irrigation machinery equipped with sprinklers with a total length from 230 to 540 m. The commonly applied quality of work parameter for wide-range irrigators is the irrigation uniformity coefficient according to Heermann and Hein CUH. Work quality evaluations were also carried out through other parameters applicable in practice, such as irrigation uniformity coefficients calculated according to Christiansen CU, Wilcox and Swailes Cws, and our introduced parameters, the coefficient ar (derived from the degree of unevenness according to Oehler) and the degree of uniformity γr (derived from the degree of non-uniformity according to Voight). Other applied parameters for determining the quality of work of wide-range irrigation machinery were the coefficients of irrigation uniformity according to Hart and Reynolds CUhr, further according to Criddle CUcr and subsequently according to Beale and Howell CUbr. Next, the parameters of the non-uniformity coefficient according to Oehler a, the coefficient of variation according to Stefanelli Cv, the degree of non-uniformity according to Voigt γ and the degree of non-uniformity according to Hofmeister Ef were evaluated. Field tests were performed during the growing season of cultivated crops (potatoes, corn and sugar beet) in the village of Trakovice (agricultural enterprise SLOV-MART, southwest of the Slovakia) and in the district of Piešťany (Agrobiop, joint stock company). During the research, the inlet operating parameters (speed stage, inlet pressure, irrigation dose), technical parameters (number of sprayers, total length, number of chassis) and weather conditions (wind speed and temperature) were recorded. The obtained results were examined by one-way ANOVA analysis depending on the observed coefficient or input conditions and subsequently verified by Tukey and Duncan tests as needed. Irrigation uniformity values ranged from 67.58% (Cws) to 95.88% (CUbh) depending on the input conditions. Irrigation non-uniformity values ranged from 8.58 (a, Ef) to 32.42% (Cv). The results indicate a statistically significant effect of the site of interest and thus the impact of particular field conditions (p < 0.05). When evaluating the application of different coefficients of irrigation uniformity, the results showed a statistically significant effect only in the first test (p = 0.03, p < 0.05). During further repeated measurements, the quality of work increased due to the performed inspection of all sprayers and the reduction in the influence of the wind.

scholarly journals Economic-legal aspects of business assets definition and its effectiveness analysis

2004 ◽  
Vol 52 (6) ◽  
pp. 189-210
Author(s):  
Oldřich Tvrdoň ◽  
Radmila Presová ◽  
Martin Přibyl
Keyword(s):  
Legal Aspects ◽  
Plant Production ◽  
Joint Stock Company ◽  
The European Union ◽  
Stock Company ◽  
Corn Production ◽  
Effectiveness Analysis ◽  
The World ◽  
Definition Of

The thesis “Economic-legal aspects of business assets definition and its effectiveness analysis” analyses the contribution of business assets in joint-stock company Svornost Těmice. The company operates in the field of agricultural primary production. Focus of plant production still keeps the traditional composition of plants grown. In connection with increasing the quality of effectiveness of the machinery the area of corn-production will be expanded. In animal production, the company specialises on the pig-feeding and milking-cows.The theoretical part includes the opinions of the world economists and managers on the definition of basic concepts related to business assets. These opinions are confronted with those of Czech authors, in order to acquaint students of the Faculty of Business and Economics with them – focusing on students of the Trade Management specialisation.The practical part is focused on analysis of effectiveness of business assets in the selected company. It have confirmed that managers of this business have to improve the intensity of exploitation of the asset base and thus to reach its higher effectiveness. This task is necessary for operation in the intensive-competition environment formed after the entrance into the European Union.

SuperShip: Journey of a Successful Entrepreneur

2020 ◽  
Vol 9 (2) ◽  
pp. 295-305
Author(s):  
Viet Quoc Cao
Keyword(s):  
Quality Of Service ◽  
Customer Satisfaction ◽  
Single Case ◽  
Quality Of Services ◽  
Joint Stock Company ◽  
Stock Company ◽  
Steady Growth ◽  
Freight Forwarding ◽  
Customer Satisfaction And Loyalty

SuperShip Vietnam, a Joint Stock Company, founded in 2015, specializes in freight forwarding and express delivery services for e-commerce transactions in Vietnam. In 4 years, it has come a long way from a start-up with only five members and VNĐ 40 million (~US$1,800) as the capital. Difficulties and challenges faced by the firm were incredibly huge. Nevertheless, with slow but steady growth, the company utilized the quality of services as the foundation to build customer satisfaction and loyalty rather than taking the route of price-based competition. SuperShip has grown steadily to become a prestigious and well-established enterprise in the fast-moving freight forwarding market. SuperShip is not yet satisfied with its multiple accomplishments as there are still many peaks to conquer to achieve the company’s vision. The case highlights as to how through participation in union-association and volunteering activities; implementing small business plans to earn extra money during college days can help in developing leadership, negotiation and interpersonal skills and hone the entrepreneurship trait. Dilemma For steady growth, should the company utilize the quality of services as the foundation to build customer satisfaction and loyalty or take the route of price-based competition. Theory: Sustainability of a business in goods delivery sector Type of the case: Experience-based applied single case study Protagonist: The owner of the firm Options Copy the business model of the two large players in the existing market and offer similar services. Raise the benchmark of customer satisfaction and loyalty by designing and delivering superior quality of service with the help of well trained and empowered employees. Discussions and Case Questions For a training firm is it better to focus on a single service and performing it with excellence than offering many courses. How did SuperShip created its point of difference? How the firm can grow further while raising funds at a low cost? What is the next level of quality of service that the firm should target?

scholarly journals The Ways to Optimize Costs of Enterprise on the Example of PJSC «Ukrainian Railways»

2020 ◽  
Vol 11 (514) ◽  
pp. 282-287
Author(s):  
I. V. Nagorna ◽  
◽  
Y. Y. Halkina ◽  
Keyword(s):  
Economic Activity ◽  
Structural Changes ◽  
Cost Management ◽  
Optimal Level ◽  
Joint Stock Company ◽  
Net Income ◽  
Stock Company ◽  
Composition And Structure ◽  
The Impact

The article is aimed at finding ways to optimize costs at the production subdivision «Operational wagon depot Kupyansk» of the Regional division «Southern Railway» of the Private Joint Stock Company «Ukrainian Railways» on the basis of the performed analysis of the composition and structure of costs, profitability, the impact of the amount of costs on performance indicators, the level of costs per 1 UAH of the consummated services, and operational analysis. The views of scholars on the term «costs» are explored. It is defined that cost management is quite a complex and important process in the course of carrying out economic activity along with determining the quality of further results of enterprise. The main methodological bases of cost management, economic condition of the enterprise are researched. Optimization measures for further development of the enterprise are proposed, which will allow to use its resources more efficiently, to achieve an increase sales and maximize profits. The authors provide recommendations on managing the enterprise costs in order to stimulate the growth of competitiveness. The focus is placed on the mechanism of minimizing the costs of the enterprise in the total amount of net income, because efficient use of costs can not be carried out without structural changes in the sphere of their management. It is identified that cost management is an interconnected complex of works, which forms and influences the behavior of costs during economic activity, as well as is aimed at achieving the optimal level of costs. The proposed measures as to optimizing costs can be used by directors and managers of the enterprise to make informed decisions on the prospective development of the enterprise.

scholarly journals Evaluation of harvest losses within a full mechanised grape harvest

2013 ◽  
Vol 61 (3) ◽  
pp. 751-756 ◽  
Author(s):  
Pavel Novák ◽  
Patrik Burg
Keyword(s):  
Operating Conditions ◽  
Joint Stock Company ◽  
Stock Company ◽  
A Value ◽  
Comparable Quality

A contribution deals with an evaluation of harvest losses within a full mechanised berries harvest using two self-propelled harvesters GREGOIRE G 152 and NEW HOLLAND VL 6060 differing in kinds of harvesting and catching mechanisms. Observation was done in vineyards of ZVOS Hustopeče joint–stock company at harvest of Müller Thurgau and Lemberger varieties in a period 2009–2010. Results gained under operating conditions showed that both self-propelled harvesters reached a comparable quality of a harvested product. There were observed losses by a slump in a case of using GREGOIRE G 152 harvester 0.8–1.45%. By using NEW HOLLAND VL 6060 the losses were 0.86–1.52% and data were gained with a respect to vine condition, the variety and the vintage. Next to losses by the slump also losses as non-harvested product were observed. Using GREGOIRE G 152 were reached 1.08–2.56% of non-harvested product losses and in a case of NEW HOLLAND VL 6060 similarly 1.17–2.22%. However a value of the non-harvested product losses cannot be perceived absolutely because in a practice the non-harvested grapes are consequently picked up manually. Total losses perceived as a sum of losses by the slump and non-harvested losses values were at GREGOIRE G 152 harvester 2–4% and at NEW HOLLAND VL 6060 harvester 2–3.7% of total hectare yield.

scholarly journals ANALYSIS OF THE STATE OF POST-HARVEST PROCESSING OF PUMPKIN SEEDS IN UKRAINE

2020 ◽  
pp. 148-159
Author(s):  
Oleh Tsurkan ◽  
Dmytro Prysiazhniuk ◽  
Ivan Didyk
Keyword(s):  
Technological Process ◽  
The State ◽  
Raw Material ◽  
Simultaneous Increase ◽  
Minimal Energy ◽  
Drying Process ◽  
High Moisture ◽  
Post Harvest ◽  
Pumpkin Seeds

One of the important stages of growing seeds of agricultural crops is its post-harvest processing, which includes the drying process, is the main and one of the most effective methods for storing and processing agricultural raw materials. The use of vibration drying equipment is especially effective in high-tech processes taking place in the seed industry, where product moisture is the most important condition for the implementation of technology. The object of research in this article was the technological process of post-harvest processing of high-moisture pumpkin seeds, in particular drying. The purpose of the work was to analyze the current state of post-harvest processing of high-moisture pumpkin seeds and to establish promising methods and means for intensifying this process with a simultaneous increase in the quality of the final raw material obtained. The task of the work was: to review research and publications on the state of post-harvest processing of pumpkin seeds in Ukraine, to establish the features of its post-harvest dues, in particular drying, to get acquainted with the technical means and technologies for performing the technological process of drying pumpkin seeds, to establish the main disadvantages of the existing drying equipment, to determine and to propose new promising technologies and technical solutions for intensifying the drying process of pumpkin seeds with a simultaneous increase in the quality of the final raw material with minimal energy consumption and translate them into a developed model of a vibration dryer, which sequentially implements filtration and convection stages of drying. The research methodology was based on a review analysis of existing studies and publications on the state of post-harvest treatment of pumpkin seeds in Ukraine and the search for ways to intensify this process with a simultaneous increase in the quality of the final raw material obtained. In scientific work, based on the results of the study, it was found that the existing grain drying equipment does not meet the requirements for drying high-moisture pumpkin seeds, therefore there is a need for the development, research and implementation of energy-efficient schemes and structures. The existing samples of domestic equipment for post-harvest processing of high-moisture pumpkin seeds are morally and physically obsolete, do not provide flexibility in the execution of the technological process, are energy- and metal-intensive and cannot be used in processing lots of seed material. The proposed design of a vibrating dryer, which sequentially implements filtration and convection stages of drying pumpkin seeds. The developed installation provides an intensification of this process with minimal energy consumption while increasing the quality of the final raw material obtained.

scholarly journals Kinetics of drying and quality of the apple cultivars Granny Smith, Idared and Jonagold

2010 ◽  
Vol 55 (3) ◽  
pp. 261-272 ◽  
Author(s):  
Dragana Paunovic ◽  
Branislav Zlatkovic ◽  
Dusica Mirkovic
Keyword(s):  
Technological Process ◽  
Air Temperature ◽  
World Market ◽  
Polyphenolic Compounds ◽  
Raw Material ◽  
Maximum Speed ◽  
Three Samples ◽  
Apple Slices ◽  
Kinetics Of

Apple is nutritionally valuable and present as fresh fruit in human nutrition throughout the year. Also apple is a raw material in food processing, primarily in the production of juices, nectars, refreshing soft drinks, marmalades, jams, compotes, apple cider vinegar and dried fruits. In the last decade on the world market there is a great interest in dried apple products (commercially called apple chips). During preservation by drying the technological process aimed at the final product of optimal quality is required. The subject of this paper is the kinetics of the apple cv. Granny Smith, cv. Idared and cv. Jonagold drying in laboratory dehydrator for the purpose of pinpointing at which level of humidity the maximum speed of evaporation is achieved and at which level of humidity apple slices begin to change in colour and geometric shape. Parameters of the drying process were the same for all three cultivars, 3hrs at air temperature of 70oC and 5hrs at air temperature of 50o. The amount of evaporated water is expressed in relative and absolute units of measure. The purpose of this paper is to determine which one of the three tested cultivars provides the best properties for drying, i.e. in terms of oxidation of polyphenolic compounds to find the cultivar which will provide that the final product is technologically and organoleptically the most acceptable. The results showed that the sample cv. Granny Smith expressed the least oxidation of polyphenolic compounds (browning), curved edges and shrivelled apple slices. After that the sample cv. Jonagold followed. The sample cv. Idared showed the worst results. Following the drying kinetics of all three samples, it can be concluded that the cultivars Granny Smith and Jonagold were achieving the lower maximum speed of evaporation, unlike the cultivar Idared. The cultivars Granny Smith and Jonagold have attained consistent drying and in this way the technological process was finished with a smaller temperature stress for plant tissue, resulting in a much better quality of the final product.

scholarly journals Analysis of the Efficiency of Using Assets Based on Accounting

2021 ◽  
pp. 168-180
Author(s):  
Denis Lysenko ◽  
Leyla Akgün
Keyword(s):  
Economic Analysis ◽  
Practical Interest ◽  
Scientific Article ◽  
Joint Stock Company ◽  
Stock Company ◽  
Industrial Companies ◽  
Federal Research ◽  
Analytical Work ◽  
Effective Use

Considering the advance of technologies and methods aimed at improving the quality of management of the asset complex, new requirements for justifying the effectiveness of funds invested in assets are constantly appearing, they are constantly evolving and becoming more viable, which determines the theoretical and practical interest in the issues studied by the authors. The main purpose of the article is to offer methodological developments and recommendations for analyzing the effectiveness of the use of the asset complex by a research and production concern on the basis of financial statements, to identify reserves and give recommendations for more efficient usage of resources. The subject of the research is activities of an enterprise related to the management of the asset complex. In addition to the introduction of new methods of economic analysis, the authors also developed a generalized model for managing the asset complex in the form of a software product. This model was applied to two real research and production complexes, one of which is the largest Federal Research and Production Center Closed Joint Stock Company Research and Production Concern (Association) “Energia”. The developed model can be applied with the purpose of effective management of the asset complex by the largest industrial companies. The results of the research presented in this scientific article will allow specialists to improve the quality of analytical work in the field of economic analysis of enterprise assets and the search for reserves for their effective use.

OPTIMIZATION OF TECHNOLOGICAL PROCESS OF PEELING WHEATS GRAIN

2021 ◽  
Author(s):  
В.Н. НЕВЗОРОВ ◽  
Е.Н. КОЖУХАРЬ ◽  
Д.В. САЛЫХОВ ◽  
М.А. ЯНОВА ◽  
И.В. МАЦКЕВИЧ ◽  
...  
Keyword(s):  
Technological Process ◽  
Process Parameters ◽  
Second Order ◽  
The Body ◽  
Optimum Process ◽  
Regression Equations ◽  
Special Device ◽  
Independent Variables

Проведены исследования по оптимизации технологического процесса шелушения зерна пшеницы на разработанной опытно-экспериментальной инновационной установке – специальном устройстве для шелушения зерна. В качестве плана эксперимента выбран двухфакторный эксперимент второго порядка; независимыми переменными взяты технологический и конструктивный параметры: x1 – длительность увлажнения зерна пшеницы, мин, x2 – зазор между лопатками и корпусом устройства, мм. Качество шелушения определялось массами отдельных фракций, влажностью зерна пшеницы и длительностью процесса. Были получены уравнения регрессии, предложены оптимальные параметры процесса шелушения зерна пшеницы на разработанной установке. Researches on optimization of technological process of peeling wheats grain on the developed skilled and experimental innovative installation – the special device for grain peeling are conducted. As the plan of the experiment was selected two-factor experiment of the second order; the independent variables was taken technological and constructive parameters: x1 – is the duration of the humidification wheats grain, min, x2 – gap between the blade and the body of the device, mm. The quality of peeling was determined by the mass of individual fractions, the moisture load of wheats grain and the duration of the process. The regression equations were obtained, the optimum process parameters were recommended for designed device for peeling of wheats grain.

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