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Number of results: 7
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Abstract

Anti-condensation coatings are widely used in refrigeration, air conditioning and ships technology. They can store a certain amount of water in its own volume, and then return it back in favorable conditions. Anti-condensation coatings are used also to protect structures from the moisture. This paper presents the results of experimental research on heat and mass transfer in an anti-condensation coating under natural and forced convection. Experimental results are obtained for horizontal and inclined plates. Experimental data are compared with different models of computation.
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Authors and Affiliations

Artur Rusowicz
Andrzej Grzebielec
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Abstract

W referacie odnoszę się do kwestii O nauczycielu św. Tomasza i w jej świetle uznaję św. Alberta Wielkiego za realny przykład nauczyciela doskonałego. Św. Albert Wielki z Kolonii jest uważany za jednego z największych myślicieli średniowiecza. Był biegły zarówno w teologii, filozofii, jak i naukach przyrodniczych. Najwybitniejszym uczniem św. Alberta był św. Tomasz z Akwinu, któremu mistrz ułatwił rozkwit talentu filozoficznego i teologicznego. Między mistrzem a uczniem rozwinęła się przyjaźń i wzajemny szacunek pomimo istotnych różnic w ich systemach filozoficznych, zwłaszcza w kluczowej kwestii struktury bytu (esse). Ideał nauczyciela, według św. Tomasza, to doprowadzenie ucznia do źródła poznania, ale pozostawienie mu swobody samodzielnego odkrywania prawdy. Szczególnym wyrazem więzi mistrza i ucznia była publiczna obrona myśli św. Tomasza przed ewentualnym potępieniem już po śmierci Akwinaty, jakiej podjął się św. Albert pomimo wspomnianych różnic filozoficznych.

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Authors and Affiliations

Krzysztof A. Wojcieszek
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Abstract

This article explores whether the Federal Republic of Germany (FRG) is identical with pre-war Germany. The question is relevant for the understanding of the 1970 Treaty of Warsaw, because in the event it is identical, the FRG would be the predecessor State of Poland with regard to the former German territories east of the Oder-Neisse line and, therefore, competent to renounce any territorial title. By contrast, in the case of non-identity the FRG would only have been a third State with regard to these territories. However, even in case of identity, the scope of the Treaty of Warsaw seems ambiguous due to Allied reservations. Hence, it was wise to confirm the transfer of sovereignty in 1990.
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Authors and Affiliations

Robert Uerpmann-Wittzack
1
ORCID: ORCID

  1. Professor of Public and International Law, University of Regensburg
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Abstract

The aim of the paper was to estimate how the value of 1 GJ of energy in coal with a calorific value of 5500 kcal/kg varies on the international coal market compared to 1 GJ of energy in coal with a calorific value of 6000 kcal/kg. The analysis of data from different ports was intended to answer the question of whether the pricing of coals of different producers according to their calorific value is convergent. The best-known price standard for thermal coal is 25.1 MJ/kg coal (6000 kcal/kg) and, until recently, coals with such quality parameters dominated international trade. Currently, coals with parameters other than considered to be standard parameters are traded on the coal market, hence it is necessary to price a unit of energy (e.g. 1 GJ) contained in these coals. The indices have been selected of the largest exporters of thermal coal for which data was available and referred to the same coal types (grades) determined on the same basis (FOB). Theoretically, the price differential between 6000 kcal/kg and 5000 kcal/kg coal (in USD/ton) should be (at least) as much as the difference in calorific value, i.e. about 9% per USD/ton. In reality, the price differential between these types of coal is greater, though. The overall conclusion of the analysis is that the price calculated per 1 GJ of energy fluctuated on average by 5.9% over the entire period considered. The analytical results obtained for coal from four countries are quite convergent, so it can be assumed that the calculated relationship between the prices of coal with different calorific values (6000 and 5000 kcal/kg) is a good approximation of the observed relationships in the international trade. The calculation results provide a simple formula allowing to estimate the price of coal with a calorific value other than the standard 25.1 MJ/kg (6000 kcal/kg) using the relationships from the international market.

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Authors and Affiliations

Zbigniew Grudziński
ORCID: ORCID
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Abstract

One of the major tasks in digital photogrammetry is image matching technique for finding corresponding points in a stereopair. Area-based matching has been acknowledged as being more precise than feature-based matching. Least squares multi-point matching (LSMM) is one of the Global Image Matching (GIM) which was developed from the Least-squares Single point matching (LSSM) so called area-based matching. LSMM method has been more reliable than LSSM one because the relationship between the different neighbouring points is considered in simultaneous computation. LSMM is just for the simultaneous determination of the horizontal parallaxes at the node points of the regular rectangular nets for the purpose of the establishing the DEM. This paper undertakes a trial of improving the accuracy of LSMM by consideration of the correlated pixels and terrain height differences.
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Authors and Affiliations

Chinh Ke Luong
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Abstract

Recycling of plastic wastes helps in reducing waste disposal problems and helps for the sustainable development of the country. Concrete with various % (0 to 55%) of waste plastic aggregates were tested for their mechanical strength properties. In the present work, plastic aggregates obtained as end product of a polymer recycle industry in the form of grains called as plastic aggregates are used as fine aggregate replacements in concrete. The addition of plastic aggregate as fine aggregate replacements results in increase in compressive strength, split tensile strength and flexural strength and thus helps in production of sustainable concrete. It is observed that, the optimum % of replacement of sand with waste plastic waste is 40% and it is also found that upto55% of sand replacements with plastic wastes, mechanical strength values are comparable with that of the normal concrete.

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Authors and Affiliations

K. Srinivasan
J. Premalatha
S. Srigeethaa
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Abstract

TMD is a disease within the masticatory system that increases its reach among the society every year in the third and fourth decade of life. The etiology of TMD is complex and it is often difficult to establish the cause in a specific case. The aim of the study was to determine the impact of TMD on pathomorphological changes within the temporomandibular joints, evaluated in USG examinations and evaluation the assessment of differences in the number of pathological changes between various forms of TMD.
Material and Methods: The study material included a group of 386 patients, both sexes, aged 20 to 46 years, who came for prosthetic treatment due to symptoms of TMD. Ultrasound examination of the temporomandibular joints supplemented the clinical diagnosis of TMD in all the subjects. Axis I of the DC/TMD were used.
Results: Group I included 116 women and 89 men, group II consisted of 102 women and 79 men. Pathological morphological changes in the temporomandibular joints were found in all the examined patients. The changes in soft tissue structures were significantly increased in group II, but numerous pathomorphological changes were also present in the group of patients with the muscle form of TMD.
Conclusion: The results of the conducted studies with the use of USG temporomandibular joints revealed numerous pathomorphological changes within the temporomandibular joints. This indicates the usefulness of the USG examination in additional diagnostic tests in the group of patients with TMD.
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Authors and Affiliations

Małgorzata Pihut
1
Andrzej Gala
1
Małgorzata Kulesa-Mrowiecka
2

  1. Prosthodontic and Orthodontic Department, Dental Institute, Jagiellonian University Medical College, Kraków, Poland
  2. Department of Rehabilitation in Internal Diseases, Institute of Physiotherapy, Faculty of Health Science, Jagiellonian University, Kraków, Poland

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