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Janusz Zarajczyk and Paweł Sobczak

The Meatring of Beetroot Seeds Sowing Quality with the Use of Precision Seed Plate Planter

This paper presents the results of the laboratory research concerning assessment of the quality of sowing Czerwona Kula beetroot seeds by means of S071 Kruk seeder. The research showed significant influence of the seeder operating speed on the quality of sowing, expressed in percentage of single, double and skipped plants. The most regular dosage of seeds in a row was obtained at the seeder's operating speed of 0.6 m·s-1 and sowing disk's peripheral speed of 0.6 m·s-1. Increase of the seeder operating speed above 0.6 m·s-1 caused deterioration of the beetroot seeds distribution in a row. Thus, it can be concluded that the seeder operating speed significantly affected the quality of Czerwona Kula beetroot sowing.

Open access

Paweł Sobczak, Kazimierz Zawiślak, Jacek Mazur and Marian Panasiewicz

Abstract

The paper presents a change in physical properties of loose, dust fodder additives (aluminosilicate) after mixing them with oil or glycerine. Additives where mixed in a blade mixer with the same mixing time for all samples, which was 1 minute. Tests with oil or glycerine were carried out in the following amounts: 5%, 10%. For mixtures of additives with oil or glycerine a selected group of physical properties was determined. Method of determination of physical properties was the same for all samples i.e. the same additives − without oil and glycerine as well as mixtures with their participation. Obtained research results and their analysis unanimously indicate that adding any amount of oil or glycerine for additives improves selected physical properties of mixtures.

Open access

Mateusz Sałuch, Marta Siłuch, Daniel Tokarski, Wioletta Żukiewicz-Sobczak and Paweł Sobczak

Abstract

Subject and purpose of work: the purpose of this article is to present the opportunities for rural development and the benefits of participation in the Regional Operational Program of the Lublin Province for the years 2007-2013, as well as the estimation of the level of satisfaction of the inhabitants of the Rossosz Commune in the Bialski Poviat, Lublin Province, using renewable energy sources co-financed by EU funds. Materials and methods: this work was created with the use of author’s interview questionnaire as the basic research tool. The survey was carried out among the inhabitants of the Rossosz Commune. Results and conclusions: participation in the “Clean Energy in the Zielawy Valley” project contributed to the development of rural areas in the Biała Podlaska Poviat of the Lubelskie Province and it was a fundamental factor enabling the installation of devices using renewable energy. The research shows that the vast majority of respondents appreciated the benefits of renewable energy installations and many of them envisage to make use of the possibility of installing renewable energy devices in the near future.

Open access

Marian Panasiewicz, Jacek Mazur, Rafał Nadulski, Paweł Sobczak, Kazimierz Zawiślak and Zbigniew Kobus

Abstract

The objective of the paper was to determine the impact of the value of the oil pressing pressure with the cold pressing method in a screw press on the pressing course and performance. Varied values of pressure were obtained through the use of three replaceable attachments of the pressing unit with a varied diameter of the outlet conduit (ф1=2 mm, ф2=4 mm and ф3=6 mm). The soya oil pressing process performance was determined in relation to the applied attachment and the soya cultivar. Seeds of 7 Polish non-genetically modified soya cultivars constituted research material. It was proved that both variable pressure values and the used soya cultivars have impact on the pressing performance. Based on the analysis of the obtained research results it was proved that varied technical parameters and soya cultivars influence both the process performance and the remaining parameters and pressing conditions.

Open access

Marcin Weiner, Wioletta Żukiewicz-Sobczak, Małgorzata Tokarska-Rodak, Dorota Plewik, Anna Pańczuk, Marta Siłuch, Jerzy Zagórski, Paweł Sobczak, Tomasz Chmielewski, Stanisława Tylewska-Wierzbanowska, Mariia Shkilna, Mykhailo Korda, Ivan Klisch, Mykhailo Andreychyn and Mariana Pavliuk

Abstract

Introduction: Lyme borreliosis/Lyme disease is caused by Borrelia burgdorferi and is one of the most common vector-borne diseases transmitted by ticks.

Material and Methods: A total of 136 Ixodes ricinus ticks, collected in the Ternopil (Ukraine) region, including 126 adults (70 females and 56 males), and 10 nymphs were examined. The identification of the species and their developmental form was based on morphological characteristics.

Results: PCR with B5S-Bor and 23S-Bor primers resulted in Borrelia burgdorferi sensu lato DNA amplification among six ticks (4.4%). The detailed analysis based on the DNA sequencing showed the presence of DNA of Borrelia afzelii in four samples; the remaining two represented Borrelia burgdorferi sensu lato complex, although their genospecies were not determined. The research confirmed the dominance of Borrelia afzelii genospecies in the ticks from Ukraine.

Conclusion: It seems reasonable to undertake similar research in ticks from other regions of Ukraine. Knowledge in this field can be useful for public health and planning the prevention of tick-borne diseases.

Open access

Paweł Sobczak, Ewa Stawiarska, Judit Oláh, József Popp and Tomas Kliestik

Abstract

The main purpose of the paper was the structural analysis of the connections network used by a railway carrier Koleje Dolnośląskie S.A. operating in southern Poland. The analysis used simulation methods. The analysis and simulation were based on graph theory, which is successfully used in analysing a wide variety of networks (social, biological, computer, virtual and transportation networks). The paper presents indicators which allow judging the analysed connections network according to an appropriate level of transport services. Simulation results allowed proposing some modifications for the improvement of the analysed connections network. The paper also demonstrates that graph theory and network simulations should be used as tools by transportation companies during the stage of planning a connections network.