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This paper focuses on evaluation of differences in the newly manufactured U-tubes and ones after operation. Differences in geometry and internal surface roughness were investigated and a flow simulation was carried out in the Ansys Fluent software, where properties such as flow nature, maximum velocity and pressure drop were examined. A numerical model validation process was carried out with an application of PIV experiments. The digital models of the U-tube were obtained with an application of computer tomography. As a result of the tests, it has been noticed that the U-tube after operation has a much more distorted cross-sectional shape comparing to the shape of the new one. Moreover, the U-tube after operation is characterized by a 3-fold higher average surface roughness Sa value than one obtained in the new tube. The maximum flow velocities for the tube after operation are about 3.4% higher than ones reached for theoretical tube.
A. Gogolin; M. Wasilewski; G. Ligus; S. Wojciechowski; B. Gapinski; J.B. Krolczyk; D. Zajac; G.M. Krolczyk. Influence of geometry and surface morphology of the U-tube on the fluid flow in the range of various velocities. Measurement 2020, 164, 108094 .
AMA StyleA. Gogolin, M. Wasilewski, G. Ligus, S. Wojciechowski, B. Gapinski, J.B. Krolczyk, D. Zajac, G.M. Krolczyk. Influence of geometry and surface morphology of the U-tube on the fluid flow in the range of various velocities. Measurement. 2020; 164 ():108094.
Chicago/Turabian StyleA. Gogolin; M. Wasilewski; G. Ligus; S. Wojciechowski; B. Gapinski; J.B. Krolczyk; D. Zajac; G.M. Krolczyk. 2020. "Influence of geometry and surface morphology of the U-tube on the fluid flow in the range of various velocities." Measurement 164, no. : 108094.
Antioxidants are a wide group of chemical compounds characterized by high bioactivity. They affect human health by inhibiting the activity of reactive oxygen species. Thus, they limit their harmful effect and reduce the risk of many diseases, including cardiovascular diseases, cancers, and neurodegenerative diseases. Antioxidants are also widely used in the food industry. They prevent the occurrence of unfavourable changes in food products during storage. They inhibit fat oxidation and limit the loss of colour. For this reason, they are often added to meat products. Many diet components exhibit an antioxidative activity. A high antioxidative capacity is attributed to fruit, vegetables, spices, herbs, tea, and red wine. So far, the antioxidative properties of various plant materials have been tested. However, the antioxidative activity of some products has not been thoroughly investigated yet. To date, there have been only a few studies on the antioxidative activity of the pumpkin, including pumpkin seeds, flowers, and leaves, but not the pulp. The main focus of our experiment was to optimize the extraction so as to increase the antioxidative activity of the pumpkin pulp. Variable extraction conditions were used for this purpose, i.e., the type and concentration of the solvent, as well as the time and temperature of the process. In addition, the experiment involved a comparative analysis of the antioxidative potential of 14 pumpkin cultivars of the Cucurbita maxima species. The study showed considerable diversification of the antioxidative activity of different pumpkin cultivars.
Bartosz Kulczyński; Anna Gramza-Michałowska; Jolanta B. Królczyk. Optimization of Extraction Conditions for the Antioxidant Potential of Different Pumpkin Varieties (Cucurbita maxima). Sustainability 2020, 12, 1305 .
AMA StyleBartosz Kulczyński, Anna Gramza-Michałowska, Jolanta B. Królczyk. Optimization of Extraction Conditions for the Antioxidant Potential of Different Pumpkin Varieties (Cucurbita maxima). Sustainability. 2020; 12 (4):1305.
Chicago/Turabian StyleBartosz Kulczyński; Anna Gramza-Michałowska; Jolanta B. Królczyk. 2020. "Optimization of Extraction Conditions for the Antioxidant Potential of Different Pumpkin Varieties (Cucurbita maxima)." Sustainability 12, no. 4: 1305.
The purpose of the study was to establish whether UV-C radiation applied to potato tubers prior to their storage affected their natural losses over a long period of time. A custom-built UV-C radiation stand constructed for the purpose of this experiment was equipped with a UV-C NBV15 radiator generating a 253.7 nm long wave with power density of 80 to 100 μW∙cm−2. Three varieties of edible medium late potatoes, Jelly, Syrena, and Fianna, were the objects of the research. The measurement of tightly controlled storage conditions was carried out over three seasons between 2016/2017 and 2018/2019, in a professional agricultural cold store with automated adjustment of interior microclimate parameters. The obtained data were processed using the variance analysis (α = 0.05). There was a statistically significant reduction in transpiration- and respiration-caused losses in the UV-C radiated potato tubers in comparison to those of the control sample. Additionally, the Jelly variety reacted to UV-C radiation demonstrating a reduction in sprout weight.
Tomasz Jakubowski; Jolanta B. Królczyk. Method for the Reduction of Natural Losses of Potato Tubers During their Long-Term Storage. Sustainability 2020, 12, 1048 .
AMA StyleTomasz Jakubowski, Jolanta B. Królczyk. Method for the Reduction of Natural Losses of Potato Tubers During their Long-Term Storage. Sustainability. 2020; 12 (3):1048.
Chicago/Turabian StyleTomasz Jakubowski; Jolanta B. Królczyk. 2020. "Method for the Reduction of Natural Losses of Potato Tubers During their Long-Term Storage." Sustainability 12, no. 3: 1048.
Biochar was reported to improve the chemical and physical properties of soil. The use of biochar as a soil amendment have been found to improve the soil structure, increase the porosity, decrease bulk density, as well increase aggregation and water retention. Knowing that springtails (Collembola) are closely related to soil properties, the effect of biochar on morphological diversity of these organisms was evaluated. The main concept was the classification of springtails to the life-form groups and estimation of QBS-c index (biological quality index based on Collembola species). We conducted the field experiment where biochar was used as soil amendment in oilseed rape and maize crops. Wood-chip biochar from low-temperature (300 °C) flash pyrolysis was free from PAH (polycyclic aromatic hydrocarbon) and other toxic components. Results showed that all springtail life-form groups (epedaphic, hemiedaphic, and euedaphic) were positively affected after biochar application. The QBS-c index, which relates to springtails’ adaptation to living in the soil, was higher in treatments where biochar was applied. We can recommend the use of Collembola’s morphological diversity as a good tool for the bioindication of soil health.
Iwona Gruss; Jacek P. Twardowski; Agnieszka Latawiec; Jolanta Królczyk; Agnieszka Medyńska-Juraszek. The Effect of Biochar Used as Soil Amendment on Morphological Diversity of Collembola. Sustainability 2019, 11, 5126 .
AMA StyleIwona Gruss, Jacek P. Twardowski, Agnieszka Latawiec, Jolanta Królczyk, Agnieszka Medyńska-Juraszek. The Effect of Biochar Used as Soil Amendment on Morphological Diversity of Collembola. Sustainability. 2019; 11 (18):5126.
Chicago/Turabian StyleIwona Gruss; Jacek P. Twardowski; Agnieszka Latawiec; Jolanta Królczyk; Agnieszka Medyńska-Juraszek. 2019. "The Effect of Biochar Used as Soil Amendment on Morphological Diversity of Collembola." Sustainability 11, no. 18: 5126.
This paper presents the design of cold-formed rounded connections between a tube and a connecting block and the analysis of test results that were carried out with six fabricated samples. The joints manufactured on a specially designed prototype station were made by forming tools that were adjusted to connecting elements regarding the diameter and the shape. All of the samples prepared for this study were of the same diameters relating to the diameter of a hole in a connecting block and the outer diameter of a pipe flange. However, they were different concerning the height of the connecting block flange. The article presents features of joints that were manufactured with a designed forming tool on the prototype station. The achieved connections were examined in destructive testing (Micrography, Tensile Strength Test) and in non-destructive testing (Leakage Test). The research project aims were to state the differences in energy consumption of made connections and extend the concept of cold-formed rounded connections. Furthermore, this article presents the effects of FEA simulation of the cold-formed joint based on the results of destructive and non-destructive tests.
Michał Rejek; Nikodem Wróbel; Jolanta Królczyk; Grzegorz Królczyk. Designing and Testing Cold-Formed Rounded Connections Made on a Prototype Station. Materials 2019, 12, 1061 .
AMA StyleMichał Rejek, Nikodem Wróbel, Jolanta Królczyk, Grzegorz Królczyk. Designing and Testing Cold-Formed Rounded Connections Made on a Prototype Station. Materials. 2019; 12 (7):1061.
Chicago/Turabian StyleMichał Rejek; Nikodem Wróbel; Jolanta Królczyk; Grzegorz Królczyk. 2019. "Designing and Testing Cold-Formed Rounded Connections Made on a Prototype Station." Materials 12, no. 7: 1061.
A comprehensive analysis of literature pertaining to ecological trends in machining processes of difficult-to-cut materials (e.g. hard steels, Ti-based alloys, Ni-based alloys) has been performed. The paper focuses on the improvement of machining processes with a balanced attention onthe reduction of pollution generated by coolants and emulsions. Here, the specific areas of interest are: Dry cutting; Minimum Quantity Lubrication/Minimum Quantity Cooling Lubrication; Cryogenic Cooling; High-Pressure Coolant and Biodegradable Vegetable Oils. The proposed approach of sustainable and cleaner production for the above-mentioned areas involves the minimized use of coolant/lubricants, employment of appropriate cutting tool’s grade and machining conditions that leads to the reduction of total cost, cutting force,energy consumption, temperature but improvements of surface quality, volume of material removed, as well as the prolongation of tool life. In addition, the qualitative judgments like impact on human operator’s health, atmospheric air, chip removal from machining area etc. are taken into account. The study presented in the paper is such a vast compendium of knowledgeregarding multi-directional critical analysis of machined parts, tools, chips under state-of-art cooling/lubrication systems that it will help the next generation scientists to find recent advances as well as future avenues of research on ecological aspects of machining for sustainability.
G.M. Krolczyk; R.W. Maruda; J.B. Krolczyk; S. Wojciechowski; M. Mia; P. Nieslony; G. Budzik. Ecological trends in machining as a key factor in sustainable production – A review. Journal of Cleaner Production 2019, 218, 601 -615.
AMA StyleG.M. Krolczyk, R.W. Maruda, J.B. Krolczyk, S. Wojciechowski, M. Mia, P. Nieslony, G. Budzik. Ecological trends in machining as a key factor in sustainable production – A review. Journal of Cleaner Production. 2019; 218 ():601-615.
Chicago/Turabian StyleG.M. Krolczyk; R.W. Maruda; J.B. Krolczyk; S. Wojciechowski; M. Mia; P. Nieslony; G. Budzik. 2019. "Ecological trends in machining as a key factor in sustainable production – A review." Journal of Cleaner Production 218, no. : 601-615.
The paper presents the influence of the application of the EP additive based on pure phosphor in minimum quantity cooling lubrication. During investigation, three methods of cooling the cutting zone have been applied in the process of turning 316L steel: dry machining, MQCL, MQCL + EP. The wear of the tool depending on the cooling method has been monitored, as well as its influence on the machined surface roughness. Scanning analysis has shown formation of a tribofilm as result of the application of the EP additive on the surface of a plate with (Ti, Al) N coating deposited by the PVD method. Experimental evidence suggests that the application of the MQCL + EP method results in reduction of the VBB parameter as compared to dry machining and cooling with emulsion mist up to the moment of the tool coating damage. It has been found that, as result of the application of the EP additive in the MQCL method, after damage of the (Ti, Al) N coating rapid increase of the tool wear takes place and, consequently, increase of the machined surface, which is due to the reaction with the base material (sintered carbide). This is caused by the chemical action of pure phosphor without the carbon matrix on the exposed area of the tool made of sintered carbide; the latter appears as result of adhesive wear of the coating
Radoslaw W. Maruda; Stanislaw Legutko; Jolanta B. Krolczyk; Szymon Wojciechowski; Wlodzimierz Kot. The Influence of the Application of EP Additive in the Minimum Quantity Cooling Lubrication Method on the Tool Wear and Surface Roughness in the Process of Turning 316L Steel. Proceedings of the 2nd Annual International Conference on Material, Machines and Methods for Sustainable Development (MMMS2020) 2018, 254 -263.
AMA StyleRadoslaw W. Maruda, Stanislaw Legutko, Jolanta B. Krolczyk, Szymon Wojciechowski, Wlodzimierz Kot. The Influence of the Application of EP Additive in the Minimum Quantity Cooling Lubrication Method on the Tool Wear and Surface Roughness in the Process of Turning 316L Steel. Proceedings of the 2nd Annual International Conference on Material, Machines and Methods for Sustainable Development (MMMS2020). 2018; ():254-263.
Chicago/Turabian StyleRadoslaw W. Maruda; Stanislaw Legutko; Jolanta B. Krolczyk; Szymon Wojciechowski; Wlodzimierz Kot. 2018. "The Influence of the Application of EP Additive in the Minimum Quantity Cooling Lubrication Method on the Tool Wear and Surface Roughness in the Process of Turning 316L Steel." Proceedings of the 2nd Annual International Conference on Material, Machines and Methods for Sustainable Development (MMMS2020) , no. : 254-263.
The article deals with the measurement of micro-hardness of the track by the action of ultrasonic excitation of pulsating water jet. The cumulative effect of liquid matter in the form of droplets concentrated in waveform measurements was...
Sergej Hloch; Madhulika Srivastava; Jolanta Krolczyk; Somnath Chattopadhyaya; Dominika Lehocká; Vladimir Simkulet; Grzegorz Krolczyk. Strengthening Effect after Disintegration of Stainless Steel Using Pulsating Water Jet. Tehnicki vjesnik - Technical Gazette 2018, 25, 1075 -1079.
AMA StyleSergej Hloch, Madhulika Srivastava, Jolanta Krolczyk, Somnath Chattopadhyaya, Dominika Lehocká, Vladimir Simkulet, Grzegorz Krolczyk. Strengthening Effect after Disintegration of Stainless Steel Using Pulsating Water Jet. Tehnicki vjesnik - Technical Gazette. 2018; 25 (4):1075-1079.
Chicago/Turabian StyleSergej Hloch; Madhulika Srivastava; Jolanta Krolczyk; Somnath Chattopadhyaya; Dominika Lehocká; Vladimir Simkulet; Grzegorz Krolczyk. 2018. "Strengthening Effect after Disintegration of Stainless Steel Using Pulsating Water Jet." Tehnicki vjesnik - Technical Gazette 25, no. 4: 1075-1079.
This paper focuses on the parametric and nonparametric description of surface topography after turning in the dry and MQCL conditions. The carried out research involved the longitudinal turning tests of duplex stainless steel, conducted in a range of variable cutting speeds vc and feeds f. Surface topography measurements were conducted with the application of Infinite Focus G4 microscope. In the first stage of research, the parametric analysis of the machined surfaces has been conducted. It included the evaluation of amplitude surface roughness parameters. In the next stage the nonparametric description of machined surfaces was carried out. This analysis has been focused on the presentation of machined surfaces in the form of contour maps and isometric images. The last stage of experiment involved the evaluation of surface isotropy and formulation of material ratio charts. The conducted research shows that the application of MQCL method can lead to the reduction of 3D surface roughness parameters compared to values reached after the dry machining. Moreover, the better distribution of irregularity peaks and pits under the MQCL method, comparing to that obtained after dry cutting implies that surfaces machined with the use of MQCL technique can be characterized by a high wear resistance.
G.M. Krolczyk; R.W. Maruda; J.B. Krolczyk; P. Nieslony; S. Wojciechowski; S. Legutko. Parametric and nonparametric description of the surface topography in the dry and MQCL cutting conditions. Measurement 2018, 121, 225 -239.
AMA StyleG.M. Krolczyk, R.W. Maruda, J.B. Krolczyk, P. Nieslony, S. Wojciechowski, S. Legutko. Parametric and nonparametric description of the surface topography in the dry and MQCL cutting conditions. Measurement. 2018; 121 ():225-239.
Chicago/Turabian StyleG.M. Krolczyk; R.W. Maruda; J.B. Krolczyk; P. Nieslony; S. Wojciechowski; S. Legutko. 2018. "Parametric and nonparametric description of the surface topography in the dry and MQCL cutting conditions." Measurement 121, no. : 225-239.
Maciej Staniszewski; Stanislaw Legutko; Jolanta B. Krolczyk; Joachim Foltys. The Model of Changes in the Psychomotor Performance of the Production Workers. Tehnicki vjesnik - Technical Gazette 2018, 25, 197 -204.
AMA StyleMaciej Staniszewski, Stanislaw Legutko, Jolanta B. Krolczyk, Joachim Foltys. The Model of Changes in the Psychomotor Performance of the Production Workers. Tehnicki vjesnik - Technical Gazette. 2018; 25 (Supplement):197-204.
Chicago/Turabian StyleMaciej Staniszewski; Stanislaw Legutko; Jolanta B. Krolczyk; Joachim Foltys. 2018. "The Model of Changes in the Psychomotor Performance of the Production Workers." Tehnicki vjesnik - Technical Gazette 25, no. Supplement: 197-204.
Three-dimensional scanning is used in many fields: medicine, architecture, industry, reverse engineering. The aim of the article was to analyze the changes in the shape of the limbs under the influence of a mechanical external load using the method of three-dimensional scanner uses white light technology. The paper presents a system of human movement, passive part - skeleton and active part - the muscles, and principles of their interaction, which results in a change of the position of the body. Furthermore, by using the 3D scan, the differences in appearance of the arm and leg depending on the size of the external load in different positions have been presented. The paper shows that with increasing load, which muscles must prevent, increases the volume of certain parts of the legs, while another parts of them will be reduced. Results of the research using three-dimensional scanner allow determining what impact on changing the legs shape has an external mechanical load.
Kamila Kasperska; Michał Wieczorowski; Jolanta B. Krolczyk. The use of 3d scanner for testing changes in shape of human limbs under the influence of external mechanical load. E3S Web of Conferences 2017, 19, 3024 .
AMA StyleKamila Kasperska, Michał Wieczorowski, Jolanta B. Krolczyk. The use of 3d scanner for testing changes in shape of human limbs under the influence of external mechanical load. E3S Web of Conferences. 2017; 19 ():3024.
Chicago/Turabian StyleKamila Kasperska; Michał Wieczorowski; Jolanta B. Krolczyk. 2017. "The use of 3d scanner for testing changes in shape of human limbs under the influence of external mechanical load." E3S Web of Conferences 19, no. : 3024.
The polymeric composite materials used in aerospace, military, medical or racing cars manufacturing end up being used in our daily life Whether we refer to the performing vehicles, subassemblies or parts for aircrafts, wind, telegraph poles, or medical prostheses they all are present in our lives and they are made of composite materials (CM). This paper presents research regarding three different composite materials, plates by carbon fiber, in epoxy matrix. Starting with materials presentation, manufacturing methodology and determination of mechanical properties at carbon fiber/epoxy were done. Vacuum bag technology to obtain the composite structure offer opportunity to get a very compact and homogeny composite structure. For the moment this technology are adequate for high performances pieces. The mechanical characteristics of plates made of composite materials reinforced presented indicates closed value like metal materials. Based on the results, a comparative study between the reinforced materials typically used to manufacture the plates of CM is carried out.
Paul Bere; Jolanta B. Krolczyk. Determination of mechanical properties of carbon/epoxy plates by tensile stress test. E3S Web of Conferences 2017, 19, 3018 .
AMA StylePaul Bere, Jolanta B. Krolczyk. Determination of mechanical properties of carbon/epoxy plates by tensile stress test. E3S Web of Conferences. 2017; 19 ():3018.
Chicago/Turabian StylePaul Bere; Jolanta B. Krolczyk. 2017. "Determination of mechanical properties of carbon/epoxy plates by tensile stress test." E3S Web of Conferences 19, no. : 3018.
This chapter describes three different methods of manufacturing a vacuum cleaner connector made of ABS and NECURON plastic material. Basically, the part is produced on an injection molding machine; however, with the help of manual laser scanner analysis, it is possible to compare two other methods: part manufactured by milling is 0.04 mm and part manufactured by injection molding machine is −0.15 mm and 3D-printed part is −0.20 mm. All the above-mentioned methods of producing the connector have their advantages and disadvantages. The fabrication time of all elements (under 1 min for injection molding machine, 1.5 h for milling machine and ca. 7 h for 3D printing) and costs of machines and tooling are decisive factors for manufacturing technique selection.
Witold Habrat; Maciej Zak; Jolanta Krolczyk; Pawel Turek. Comparison of Geometrical Accuracy of a Component Manufactured Using Additive and Conventional Methods. Proceedings of the 2nd Annual International Conference on Material, Machines and Methods for Sustainable Development (MMMS2020) 2017, 765 -776.
AMA StyleWitold Habrat, Maciej Zak, Jolanta Krolczyk, Pawel Turek. Comparison of Geometrical Accuracy of a Component Manufactured Using Additive and Conventional Methods. Proceedings of the 2nd Annual International Conference on Material, Machines and Methods for Sustainable Development (MMMS2020). 2017; ():765-776.
Chicago/Turabian StyleWitold Habrat; Maciej Zak; Jolanta Krolczyk; Pawel Turek. 2017. "Comparison of Geometrical Accuracy of a Component Manufactured Using Additive and Conventional Methods." Proceedings of the 2nd Annual International Conference on Material, Machines and Methods for Sustainable Development (MMMS2020) , no. : 765-776.
MATEC Web of Conferences, open access proceedings in Materials science, Engineering and Chemistry
Jolanta B. Krolczyk; Stanislaw Legutko; Anna Szczepańska. Value Stream Mapping as a tool for the optimization of production – case study. MATEC Web of Conferences 2017, 121, 02006 .
AMA StyleJolanta B. Krolczyk, Stanislaw Legutko, Anna Szczepańska. Value Stream Mapping as a tool for the optimization of production – case study. MATEC Web of Conferences. 2017; 121 ():02006.
Chicago/Turabian StyleJolanta B. Krolczyk; Stanislaw Legutko; Anna Szczepańska. 2017. "Value Stream Mapping as a tool for the optimization of production – case study." MATEC Web of Conferences 121, no. : 02006.
MATEC Web of Conferences, open access proceedings in Materials science, Engineering and Chemistry
Jolanta B. Krolczyk; Stanislaw Legutko; Piotr Bialek. The modernization of the production system of the selected type of synchronizer ring. MATEC Web of Conferences 2017, 121, 02007 .
AMA StyleJolanta B. Krolczyk, Stanislaw Legutko, Piotr Bialek. The modernization of the production system of the selected type of synchronizer ring. MATEC Web of Conferences. 2017; 121 ():02007.
Chicago/Turabian StyleJolanta B. Krolczyk; Stanislaw Legutko; Piotr Bialek. 2017. "The modernization of the production system of the selected type of synchronizer ring." MATEC Web of Conferences 121, no. : 02007.
In the paper, the water meter’s body manufacturing process, in the aspect of its productivity improvement was analyzed. The analysis was focused on the identification of the fundamental problems of manufacturing company, related to the productivity, and subsequently on the ideas of their elimination (alternatively limitation). The paper was focused on the analysis of problems influencing productivity and ideas of their elimination. The experimental research results related to the productivity, generation of production shortages and also the dimensional deviations of the water meter’s body were also presented.
Jolanta B. Krolczyk; Stanislaw Legutko; Agnieszka Soberska. Productivity improvement of the water meter’s body manufacturing process. MATEC Web of Conferences 2017, 112, 1003 .
AMA StyleJolanta B. Krolczyk, Stanislaw Legutko, Agnieszka Soberska. Productivity improvement of the water meter’s body manufacturing process. MATEC Web of Conferences. 2017; 112 ():1003.
Chicago/Turabian StyleJolanta B. Krolczyk; Stanislaw Legutko; Agnieszka Soberska. 2017. "Productivity improvement of the water meter’s body manufacturing process." MATEC Web of Conferences 112, no. : 1003.
The paper contains a description of replacing a process of marking-out iron casts with 3D scanning operation and the profits it implies. It presents some of the available scanning methods which is a part of surface metrology. The paper includes a description of scanning operation using structured light method and all information necessary to perform such operation, from the equipment construction up to creation of a report for the CNC machinist.
Jolanta B. Krolczyk; Gabriel Pihan; Stanislaw Legutko. Application of optical scanning system to determine the machining allowances. MATEC Web of Conferences 2017, 112, 1002 .
AMA StyleJolanta B. Krolczyk, Gabriel Pihan, Stanislaw Legutko. Application of optical scanning system to determine the machining allowances. MATEC Web of Conferences. 2017; 112 ():1002.
Chicago/Turabian StyleJolanta B. Krolczyk; Gabriel Pihan; Stanislaw Legutko. 2017. "Application of optical scanning system to determine the machining allowances." MATEC Web of Conferences 112, no. : 1002.
U radu se opisuje metoda odabira kemijskog sastava i strukture površinskog sloja konstrukcijskih materijala koji odgovaraju svojstvima abrazivne zemljane mase koja se obrađuje. Eksperiment je proveden u laboratoriju metodom...
Jerzy Napiorkowski; Paweł Mikołajczak; Stanislaw Legutko; Jolanta B. Krolczyk. Developing of wear model of construction materials in abrasive soil pulp employing discriminant analysis. Tehnicki vjesnik - Technical Gazette 2017, 24, 15 -20.
AMA StyleJerzy Napiorkowski, Paweł Mikołajczak, Stanislaw Legutko, Jolanta B. Krolczyk. Developing of wear model of construction materials in abrasive soil pulp employing discriminant analysis. Tehnicki vjesnik - Technical Gazette. 2017; 24 (Supplement):15-20.
Chicago/Turabian StyleJerzy Napiorkowski; Paweł Mikołajczak; Stanislaw Legutko; Jolanta B. Krolczyk. 2017. "Developing of wear model of construction materials in abrasive soil pulp employing discriminant analysis." Tehnicki vjesnik - Technical Gazette 24, no. Supplement: 15-20.
Most research on biochar has focused either on the mechanistic or the biophysical aspects, and there has been relatively little research into the social applicability and acceptance of biochar as a soil enhancer in agriculture. However, whether to adopt biochar in their practice is ultimately the farmers’ decision, and their willingness to do so is crucial. Here, we show the producer’s perspective on adopting biochar, using Polish farmers as a case study. Poland is an interesting case study because biochar has only recently attracted the attention of researchers, entrepreneurs, and other stakeholders there. We performed standardized, semi-structured interviews with 161 Polish farmers to evaluate the socioeconomic potential of biochar application in practice. We found that 27% of the respondents claimed to be familiar with biochar. The respondents with a technical, non-agricultural level of education were most familiar with the term ‘biochar’ (36%), followed by the group of respondents with a higher-level agricultural education (31%). It was surprising that among the latter respondents, the majority (69%) did not know the term ‘biochar’, either in the context used for this study or in any other context. Twenty percent of the respondents expressed an interest in using biochar, while 43% were not willing to adopt it in their agricultural practice (37% ‘did not know yet’). If a farmer was familiar with the concept of sustainable agriculture, the probability of familiarity with biochar increased by 16% (p < 0.05). In addition, farmers interested in using biochar indicated that sustainable agriculture might improve the financial situation of their farms (52%). The perceived benefits of biochar that drive the willingness to adopt it included improved soil quality and increased income due to increased yields, while the constraints on its adoption were associated mainly with high costs. Our results also point to the necessity of information flow as well as engaging farmers in participatory research to adjust the research to their needs. Furthermore, our results highlight the importance of transparency with the farmers and appropriate dissemination and presentation of both the positive and the negative aspects of biochar adoption. We urge those studying biochar to engage in more interdisciplinary research and to go beyond laboratory and field research. Many innovations, even those that work, will not be adopted if socioeconomic considerations are not incorporated into the research.
Agnieszka E. Latawiec; Jolanta B. Królczyk; Maciej Kuboń; Katarzyna Szwedziak; Adam Drosik; Ewa Polańczyk; Katarzyna Grotkiewicz; Bernardo B. N. Strassburg. Willingness to Adopt Biochar in Agriculture: The Producer’s Perspective. Sustainability 2017, 9, 655 .
AMA StyleAgnieszka E. Latawiec, Jolanta B. Królczyk, Maciej Kuboń, Katarzyna Szwedziak, Adam Drosik, Ewa Polańczyk, Katarzyna Grotkiewicz, Bernardo B. N. Strassburg. Willingness to Adopt Biochar in Agriculture: The Producer’s Perspective. Sustainability. 2017; 9 (4):655.
Chicago/Turabian StyleAgnieszka E. Latawiec; Jolanta B. Królczyk; Maciej Kuboń; Katarzyna Szwedziak; Adam Drosik; Ewa Polańczyk; Katarzyna Grotkiewicz; Bernardo B. N. Strassburg. 2017. "Willingness to Adopt Biochar in Agriculture: The Producer’s Perspective." Sustainability 9, no. 4: 655.
This article deals with measurement of the thermal gradient on material during abrasive water jet cutting. The temperature was measured by thermocamera before the technological process started, during the abrasive water jet cutting process technology, and just after the cutting process. We performed measurements on several types of materials. We calculated the approximate amount of energy during the abrasive water jet cutting process technology that changes into thermoenergy, which is the current water pressure drained in a catcher tank.
Vincent Perzel; Marián Flimel; Jolanta Krolczyk; Aleksandar Sedmak; Alessandro Ruggiero; Drazan Kozak; Antun Stoic; Grzegorz Krolczyk; Sergej Krolczyk Grzegorz B. Hlocha. Measurement of thermal emission during cutting of materials using abrasive water jet. Thermal Science 2017, 21, 2197 -2203.
AMA StyleVincent Perzel, Marián Flimel, Jolanta Krolczyk, Aleksandar Sedmak, Alessandro Ruggiero, Drazan Kozak, Antun Stoic, Grzegorz Krolczyk, Sergej Krolczyk Grzegorz B. Hlocha. Measurement of thermal emission during cutting of materials using abrasive water jet. Thermal Science. 2017; 21 (5):2197-2203.
Chicago/Turabian StyleVincent Perzel; Marián Flimel; Jolanta Krolczyk; Aleksandar Sedmak; Alessandro Ruggiero; Drazan Kozak; Antun Stoic; Grzegorz Krolczyk; Sergej Krolczyk Grzegorz B. Hlocha. 2017. "Measurement of thermal emission during cutting of materials using abrasive water jet." Thermal Science 21, no. 5: 2197-2203.