The object of the paper is the solid water. The water is a model pollution with calcium dichloride. We used complexonometric method to determine the hardness. We have analysed the amount of softener influencing the hardness of the water, which is used to decontaminate humans.
Journal section: SCIENCE
Present study aims to investigate the effectiveness of using water-soluble polymers as a protective coating and rate of influence of additional seed coat on the germination and emergence of seeds. There have been conducted series of experiments using aqueous solutions of high molecular weight polyethylene glycol at a concentration of 0.1 and 0, 05% for the preparation of polymeric coatings of varying thickness. The research have been performed in laboratory and field conditions. There have been reported values for air and soil temperature, soil humidity and precipitation during the investigation period as major factors affecting seed germination.
MULTIVARIATE ANALYZING AND ARTIFICIAL NEURAL NETWORKS FOR PREDICTION OF PROTEIN CONTENT IN WINTER WHEAT USING SPECTRAL CHARACTERISTICSpg(s) 153-157
This study aimed to predict the protein content(PC) and canopy spectra in winter wheat were measured based on field test. Key spectral bands were chosen by principal component analysis (PCA) method, and the predicted models were built by Partial Least Squares Regression (PLSR) and Artificial Neural Network (ANN). The performance of the feed forward and cascade forward ANNs was compared with those of PLS regression models using root mean square error (R) and the correlation coefficient (2). The finest consequence by CFBP was related to topology of 8-8-1 with Levenberg-Marquardt (LM) algorithm, threshold function of TANSIG-TANSIG-PURELIN and the initial strategy. This arrangement output was R=0.0289 and 2=0.9881 at 14 epochs. The consequences of estimate for correlation values of PLSR model was 0.9783. The results of prediction for the two models were in order of ANN > PLSR with correlation values of 0.9881 and 0.9783, respectively. Therefore, NIRS shows the potential for predicting protein content with accuracies suitable for process control.
The objective of this work was to measure the effects of different tillage methods on weeds population in second crop corn. The field experiment was conducted at the research area of Dicle University in 2014, Diyarbakır province, southeastern part of Turkey. The treatment was lay out at the randomized complete blocks design with three times replication. In this study, different six tillage method were applied (one conventional tillage (CT) – four conservation tillage (RT) and no-till (NT)). According to results, there were found significant difference among treatments. The lowest values of weeds were recorded in the CT, while the highest values of weeds were noted in RT1and NT tillage methods. There was found more density the speices of Xanthium strumarium subsp., Solanum nigrum L., Euphorbia helioscopia L., Convolvulus arvensis L. and Sorghum halepense (L.) Pers. than other weed species .As a result, we can consider reduce tillage methods for mechanical weed control for corn production.
THEORY OF PROJECT PREPARATION OF AGROENGINEERS ON THE BASIS OF SCIENTIFIC WORK ON THE DEVELOPMENT OF AGRICULTURAL MACHINERYpg(s) 145-149
The conducted scientific researches on the theory of project preparation of agroengineers are based on scientific research on agricultural engineering which were based on regulatory documents, including the Law of Ukraine “On Higher Education”, which states that the educational process is an intellectual, educational and scientific activity, which is being carried out in institutions of higher education through a system of scientific and methodological and pedagogical activities. The study of the influence of cross-cutting, scientifically substantiated sequencing and step-by-step pedagogical technology of training on the formation of readiness for future activities of future specialists in agroengineering was conducted. In a scientifically substantiated system of cross-cutting design of technical means of mechanization, the key stage is the implementation of a professionally relevant for agroengineer coursework on agricultural machines, which students perform at the 3rd year of study at the university. In these scientific studies, the readiness of a future specialist in agroengineering to design and research activities was assessed by motivational-value, cognitive-educational and activity-practical criteria.
THE ENVIRONMENTAL CONDITIONS IN THE NEIGHBOURHOOD AND ON THE SURFACE OF THE INTERNATIONAL SPACE STATION: PART ONEpg(s) 111-114
The primary role of the space materials science is to ensure the long-term trouble-free operation of materials and elements of equipment in a space environment. The achievements of space materials science are a solid foundation for solving these tasks. In this paper we present the first part of the analysis of some different aspects of the space environment and their effect on the properties of materials (such as high vacuum conditions, own external atmosphere, collisions with particles, solar electromagnetic radiation, solar wind, penetrating corpuscular radiation) which are located or are mounted on the body of the International Space Station. But there are still problems such as the electrification of satellites, the work of materials in the atmosphere of heavy nuclei, the surface potential of the International Space Station, etc., which will be the subject of our next, second part of this study.
The multi-mission altimeter data for the Sea Level Anomaly (SLA), processed and distributed by Copernicus Marine Environment Monitoring Service, and the meteorological reanalisys of ECMWF ERA-Interim data are used to compare the seasonal variability of the Black Sea circulation and the atmosphere circulation above the basin. The seasonal averaged maps of the SLA, geostrophic current anomaly, mean sea level pressure, the wind velocity and curl reveal an accordance between the rotation of the atmosphere and sea circulation in the Eastern Black Sea area. The winter positive wind curl area, centered over the inner part of the basin, explains the winter intensification of the Rim Current. The summer configuration of wind curl could explain the spring-summer intensification of the Batumy anticyclonic eddy and the negative SLA near the Caucasus coast.
The paper proposes a mathematical model for describing the dynamics of multicomponent emulsions, based on ideas and methods of the kinetic theory of gases. The methodological basis of the proposed theory is the ideas and methods of the theory of integral kinetic equations.
Calcium hydroxide is an inorganic compound used for many purposes. Calcium hydroxide is relatively soluble in water. It partially dissolves in water to produce a solution called limewater, which is a moderate base. Limewater or aq. Ca(OH)2 reacts with acids to form salts. As the calcium hydroxide is easy accessible, cheap and has the possibility to neutralize inorganic acids can be successfully used in their decontamination. This paper presents analyzes the decontaminating properties of calcium hydroxide.
THE DEVELOPMENT OF THE COMPETITION FOR APPLIED ELECTRONICS, ORGANIZED BY THE “VASIL LEVSKI” NATIONAL MILITARY UNIVERSITY IN THE LAST 3 YEARS AND PROSPECTS FOR THE FUTUREpg(s) 100-101
The competition for applied electronics has been organized for 3 years by the National Academy of Music “Vasil Levski” with the cooperation of the trading company “Elimex”. In the first year it took place only in Veliko Tarnovo, in the second was held except in Veliko Tarnovo and in our faculties in Shumen and Dolna Mitropoliya. This year we have 6 races, including representatives from the BBU, Gabrovo and Varna. Each year the quality of the participants is also improved.
Research in primary school has recently become a hot topic and is gaining a foremost position among the educational goals and objectives in primary education.
Thus a responsible contemporary teacher of a natural science subject enables the student to get to know research work, which means that he or she guides them – through quality mentoring – through the methodology of writing a research paper, which is basically the same at all levels of the educational system, differing only in the complexity of the set research problem. At the same time, a teacher mentor should find pleasure in doing research work with their students, and regard that as an opportunity to make their work more interesting and to enhance their own knowledge. At our primary school we decided to actively integrate students into research work. The article presents a research assignment in which students in the final year of primary school (age 14-15) researched the question of what happens to apple juice of different sorts of apples before and after alcoholic fermentation. We tried to find out whether the sort of apples and the amount of sugar in apple juice affect the process of alcoholic fermentation. During experimental work, we took notes and gathered data on the amount of sugar in juice and the temperature changes that occur during alcoholic fermentation, which we measured by using a Vernier interface.
The transience and volatility of the modern world are main drivers of the constant changes in the requirements for training of the future specialists. The process of introducing new information technologies into the educational process doesn’t stop and requires modern solutions in methodological training systems. In particular, an integral component of the modern education is the introduction of distance learning courses both in the course of full-time and distance education. As for organization of the distance learning, the distance course becomes not only a source of knowledge, but also serves as a means of communication with the teacher and classmates at a distance. In fulltime education, the distance course serves to support the learning process, because of being an effective means of organizing independent work and access to educational materials.