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ContactsDate of issue: 28 September 2021
Scientific Atlas
Electronic scientific journal
ISSN 2738-7518
Date of issue: 28 September 2021
Author(s): Ivan Ilchev
The results of a scientific experiment for the study of the qualitative indicators of road bitumen in the oxidation of a heavy oil residue from primary vacuum...
Keywords: road bitumen, oxidation, penetration, softening temperature, vacuum residue
Author(s): Galina Dineva
The udder as the main organ related to milk productivity is the main object of study in dairy cattle. Apart from being a prerequisite for higher productivity its functional and morphological qualities are the subject of continuous research in connection with machine milking.
Keywords: milking unit, milking liner, pulsation chamber, health condition
Author(s): Evgeny Nonchev
Neural networks are becoming an integral part of search engine and search engine optimization in the digital age. Algorithms that are not highly dependent on Information Retrieval algorithms and are defined as independent, based on an entirely new technology...
Keywords: neural networks, web searches, search engine, Information Retrieval algorithms
Author(s): Teodora Todorova
The modern customer demands more, better, faster and personalized. This study, conducted and presented through existing literature aims to provide a comprehensive overview of the meaning and of the term demand chain management and related notions...
Keywords: demand chain management, supply chain management, marketing, information technologies, industry 4.0
Author(s): Olga Vikhristyuk
The article deals with theoretical and methodological issues and the practice of interaction between business and stakeholders in the context of the development of Сorporate social responsibility. The authors attempt to identify the key stakeholders of the most significant companies...
Keywords: Stakeholders, Corporate social responsibility, oil and gas industry, local society
Author(s): Zeyneb Ahmed Ahmed
Anaerobic digestion is a microbial process of fermentative organic matter decomposition in absence oxygen. Currently, anaerobic digestion is used mainly for biogas production in specific type of bioreactors often called methane tanks.
Keywords: Wastewater treatment, anaerobic digestion, biogas
Author(s): Galina Dineva
The aim of the study is to determine the influence of the pulsation ratio on the transient filling factors of the two tacts of the milking process. For the experiments a milking machine was used, complete with a milking unit from the company Milk-Rite...
Keywords: milking unit, pulsation rate and ratio, pulsation phases
Author(s): Galin Tihanov
The paper analyzes logistic transport for the grain harvester hopper unloading in wheat harvesting. Grain harvester shift time utilization coefficient τ = 0,71 has been found, which is within the admissible limits: τ = 0,60 ÷ 0,76. This comes to indicate that about 30 %...
Keywords: grain harvester, unloading the grain harvester hopper, productivity, joint work of harvester and transport vehicle
Author(s): Dimitar Georgiev
In the present study, a comparative analysis of the required amount of construction materials for the construction of the enclosing structure of the milking parlors with different capacities and ways of configuring the animals on the milking platforms has been performed.
Keywords: milking parlors, planning parameters, construction and planning costs, technological conditions
Author(s): Galin Tihanov
A study in seeding silage maize with Amazone EDX 9000-TC precise seeder aggregated to Claas Axion 950 tractor has been carried out. By means of the Claas service diagnostic software CDS /Claas Diagnostic System/ graphical correlations concerning the quality of seed laying have been obtained.
Keywords: seeding unit, precise seeding, service diagnostic software, quality of seed laying
Author(s): Galin Tihanov
The publication establishes the utilization rate of shift time when spraying wheat τ=0.61. It shows that only 60% of the time is the actual spraying, and the remaining 40% are for ancillary operations...
Keywords: sprayers, crop spraying, productivity
Author(s): Galia Hristova
The study was conducted on an experimental plot in the Chirpan region of Central Bulgaria. The technology of sunflower production during three agricultura years has been monitored: 2015-2016 (first agricultural year - FAY); 2017-2018 (second agricultural year – SAY); 2019-2020 (third agricultural year – ТAY).
Keywords: technology of sunflower production, plowing, cultivation, yields