2017 - Repozytorium publikacji - Politechnika Gdańska

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The ranks of Indonesian and Japanese industrial sectors: A further study
- Ubaidillah Zuhdi
2017 Pełny tekst Journal of Physics : Conference Series
The purpose of the current study is to extend the previous study which analyzes the industrial sectors ranks of specific countries. More specifically, the study aims to conduct a further analysis regarding the ranks by using the new data as well as new analysis periods. The study focuses on the cases of Indonesia and Japan. In this study, the analysis period of the Indonesian case is 2010 while for the case of Japan is 2011. Using the previous study as a reference, the study employs the Input-Output (IO) approach as an analysis device. As with the previous study, the results of this study show that the orders of the ranks depend on the methods used. Nevertheless, from the results, one can argue that the electricity and gas industry was a leading sector in the Indonesian economy in 2010. On the other hand, for the case of Japan, the competitive sector in the Japanese economy in 2011 was the manufacturing industry. In terms of the leading sectors, the current study is different from the previous one.
The ranks of Japanese industrial sectors: 2005-2011
- Ubaidillah Zuhdi
2017 Pełny tekst
The purpose of the current study is to expand the previous study which analyzes the industrial sectors ranks of specific countries. More specifically, the study aims to conduct a comparison in terms of the ranks of Japanese industrial sectors on the specific analysis period. The analysis period of the study is 2005-2011. Using the previous study as a reference, the study employs the Input-Output (IO) approach as an analysis instrument. From the results of the study, one can argue that the competitive industries in the Japanese economies in 2005 and 2011 were transport and manufacturing sectors, respectively. Besides, the results also show that, in terms of the movements of calculated values of Japanese industrial sectors, the increasing and decreasing patterns appeared on the analysis period.
The ranks of Japanese industrial sectors: 2005-2011
- Ubaidillah Zuhdi
2017 Pełny tekst Journal of Physics : Conference Series
The purpose of the current study is to expand the previous study which analyzes the industrial sectors ranks of specific countries. More specifically, the study aims to conduct a comparison in terms of the ranks of Japanese industrial sectors on the specific analysis period. The analysis period of the study is 2005-2011. Using the previous study as a reference, the study employs the Input-Output (IO) approach as an analysis instrument. From the results of the study, one can argue that the competitive industries in the Japanese economies in 2005 and 2011 were transport and manufacturing sectors, respectively. Besides, the results also show that, in terms of the movements of calculated values of Japanese industrial sectors, the increasing and decreasing patterns appeared on the analysis period.
The reduction of vibrations in circular sawing machines
- Kazimierz Orłowski
- Przemysław Dudek
2017 Annals of WULS, Forestry and Wood Technology
The presented in this paper the main objectives of the research were to explore vibrations signals of the main spindle system, the machine tool body and a circular saw to extract informative features for assessment of the designs of the panel saw Fx3 and its follower Fx550.Even though the main spindle of the new table sliding saw Fx550 has its rotational speeds larger about 20% in comparison to the Fx3, peak values of the vibrational velocities in the measurement points were in the recommended range of the peak velocities values for the machine tools. Moreover, the machine tool Fx550 has been a source of the noise on the idling at the level lower about 5 dB in comparison to the panel saw Fx3.Therefore, if the noise is decreased simultaneously vibrations are at lower level.
The Relational Benefits and the Quality of Services in Tourism
- Juan Jose Blazquez-Resino
- Edyta Gołąb-Andrzejak
2017 Pełny tekst Handel Wewnętrzny
In a very competitive environment, it is highly important to identify the indicators that exert a major influence on customer satisfaction and loyalty. Based on the current relationship marketing concept of relational benefits (Gwinner, Gremler, Bitner, 1998; Hennig-Thurau, Gwinner, Gremler, 2002) and destination quality (Blazquez-Resino, Molina, Esteban-Talaya, 2015), a conceptual model was built. The present paper aims to analyse empirically the model that reflects three different types of relational benefits perceived by tourists as well as the benefits obtained by the tourist destination in term of satisfaction and loyalty. This study tries to identify whether relational benefits have a more important effect on satisfaction and loyalty than quality. As a result, we observe the role of relational benefits as an antecedent of customer satisfaction and the effect of the latter on tourist loyalty.
The Relationship between Gene Activity and Nitrous Oxide Production during Nitrification in Activated Sludge Systems
- Przemysław Kowal
- Jacek Mąkinia
2017
Nitrite is an important factor which inhibits the first stage of the nitrification, the effect is stronger with the decrease of the DO concentrations. NO2- presence at concentration above 15 mg N – NO2 in the aeration tanks stimulates N2O production regardless of the DO concentration. The significant nirS gene induction, observed especially during the experiments with the nitrite addition indicates that N2O production is basically supported by heterotrophic denitrification. The obtained results revealed that the gene activity control may be a useful tool for recognizing the different biochemical pathways of N2O production and developing strategies for N2O control in bioreactors.
The research on properties of asphaltene stationary phase to separate mixtures of optically active compounds with the use of gas chromatography technique
- Agata Miciak
- Malwina Momotko
- Maksymilian Plata-Gryl
- Grzegorz Boczkaj
2017 Pełny tekst Camera Separatoria
W pracy przedstawiono wyniki badań nad możliwością zastosowania asfaltenów jako chiralnej fazy stacjonarnej do chromatografii gazowej. Wyniki uzyskane dla fazy asfaltenowej porównano z wynikami uzyskanymi poprzez zastosowanie komercyjnie dostępnej chiralnej fazy stacjonarnej. Badania wykazały, że frakcja asfaltenowa posiada właściwości umożliwiające uzyskanie rozdzielenia mieszanin związków optycznie czynnych.
The Role of an Integrated Transport System in the Comprehensive, Polycentric Development of Gdańsk Bay Metropolitan Area
- Dorota Dominika Kamrowska-Załuska
2017 Pełny tekst PROBLEMY ROZWOJU MIAST Kwartalnik Naukowy
In this paper the role of an integrated transport system and mobility in the development of Gdańsk Bay Metropolitan Area is discussed, with special emphasis on how it influences the development of comprehensive, polycentric urban structures. The paper consists of an analysis of how the changes, which occurred after the socio-economic transformation shaped the transport system, and as a consequence the spatial structure, of Gdańsk Bay Metropolitan Area. At the beginning of the paper historic, present and future development of integrated transport systems and the urban structure of the metropolis are described and then strategies and proposed solutions are introduced. The last chapter includes conclusions and recommendations for the future role of the integrated transport system in shaping the development of the Gdańsk Bay Metropolitan Area.
The role of analytical chemistry in the study of the Anthropocene
- Agnieszka Gałuszka
- Zdzisław M. Migaszewski
- Jacek Namieśnik
2017 TRAC-TRENDS IN ANALYTICAL CHEMISTRY
The term “Anthropocene” refers to not yet formalized epoch of geologic time during which geologic processes have been dominated by the human impact. This impact takes on many forms. Biological, physical and chemical changes to the Earth System caused by anthropogenic activity are recorded in natural archives either as new fossil assemblages (neobiota), anthropogenic deposits or a wide variety of pollutants emitted to the environment. With the current efforts to formalize the Anthropocene Epoch, a new trend in analytical chemistry has emerged. The use of different dating techniques combined with the study of chemical signals recorded in different natural archives, such as ice cores, marine and freshwater sediments, corals, tree rings, stalactites, allows us to reconstruct historic emission trends. This paper presents characteristics of specific samples to be analyzed and the pertinent analytical techniques to be applied for the purpose of gaining the knowledge required for formalizing the Anthropocene Epoch.
The role of EMG module in hybrid interface of prosthetic arm
- Tomasz Kocejko
- Jacek Rumiński
- Piotr Przystup
- Jerzy Wtorek
- Artur Poliński
2017
Nearly 10% of all upper limb amputations concern the whole arm. It affects the mobility and reduces the productivity of such a person. These two factors can be restored by using prosthetics. However, the complexity of human arm makes restoring its basic functions quite difficult. When the osseointegration and/or targeted muscle reinnervation (TMR) are not possible, different modalities can be used to control the prosthesis. In this paper the usability of electromyography (EMG) signals for such a control is evaluated. Method: first, the types of operations performed by the prosthetic arm that could be handled by EMG module were defined. The raw EMG signal, corresponding to the predefined gesture, was acquired from the surface of trapezius muscle. The pattern recognition neural network was trained to classify gestures based on recorded RAW data. Results: The neural network was trained using 56 signals corresponding to performed gestures. Optimal performance was achieved for 29 training cycles. The network was tested using data set of 56 gestures. The designed network was tested on gestures recorded from 10 volunteers. The gestures were correctly classified with nearly 84% accuracy. Conclusions: The EMG analysis is a reliable modality when it comes to hybrid interfaces for control over prosthetic arm.
THE ROLE OF LOGISTICS IN SHAPING THE COMPETITIVE ADVANTAGE OF ENTERPRISES
- Adam Lewiński
2017
The article describes the role of logistics in business activity. In the first part, the author explains the concept of logistics as well as the historical outline of the issue. Then the reasons for the development of logistics in enterprises are described. Moreover, the article tackles the influence of logistics on the entities. At the end, the author presents a number of effects businesses can achieve by applying a logistic approach in their activity. The article highlights as well the most important result of the logistics application, which is the effect of synergy.
The Russian Federation in European Union Programmes
- Krystyna Gomółka
2017 Pełny tekst Annales Universitatis Mariae-Curie Skłodowska, sectio K – Politologia
Since the early 1990s, the European Union has been supporting socio-economic transformations in the former Soviet Union states, including the Russian Federation. Initially, this assistance was provided in the framework of the TACIS Programme, offering long-term, non-repayable aid. In 1991–2006 Russia received EUR 2.7bn for the restructuring of the state enterprise sector, establishment of private companies, state administration reform, telecommunications, nuclear safety and security and environmental protection. Despite severe criticism directed at the implemented programme, emphasising its unclear objectives, lack of awareness of the conditions in which the projects were executed, prolonged completion periods for some projects and lack of evaluation, the European Union continued its financial assistance to Russia since 2007 as part of the European Neighbourhood and Partnership Instrument. The funds available for the programme were earmarked to support political, economic and social reforms, and regional and local development through programmes implemented in two time perspectives: 2007–2013 and 2014–2020. Evaluation of the programmes implemented in 2007–2013 revealed numerous shortcomings in project execution. For example, projects implemented as part of the Arctic Circle-Russia Programme were criticised for weak objectives and only partial completion of some undertakings. Another programme – Karelia–Russia failed to create a joint vision of the region and develop joint investment plans. The issues indicated as barriers to cooperation between the Russian Federation and Finland included: complicated administrative procedures in Russia and poor command of the English language on the Russian side. No evaluation report was prepared on completion of the South-East Finland–Russia Programme and Lithuania–Poland–Russia Programme. Furthermore, the objectives of the Estonia–Latvia–Russia Programme were not accomplished. Nevertheless, the European Union decided to continue the assistance to the Russian Federation in 2014–2020 as part of the following programmes: Arctic Circle–Russia, Karelia–Russia and South-East Finland–Russia and to launch four new programmes: Estonia–Russia, Latvia–Russia, Poland–Russia and Lithuania–Russia.
The safety issue of roadside advertising – comparison of polish and abu dhabi regulations
- Tomasz Mackun
- Joanna Żukowska
2017 Pełny tekst MATEC Web of Conferences
In Poland a large number of advertisements are located by the roadside. These ads do not support road traffic management and unlike the road marking system are not subject to any regulations. The advertiser’s goal is to communicate a message to as many recipients as possible. Drivers with different individual abilities, such as attention focusing, eye accommodation, speed of information processing, can be distracted, blinded or confused by the content and form of the advertising. There are elements of the road network, such as intersections, pedestrian crossings, road junctions etc. where the driver must assess the situation on the road, predict the behaviour of other users, make decisions and finally complete a manoeuvre. It all happens in a limited span of time when actions should be taken calmly with full attention. It is obvious that the attention of drivers, especially in those zones, should be focused on the task of driving. In this article, the authors present a perspective on selected national laws, and also quote Abu Dhabi’s advertising placement manual as a good example of how to manage roadside advertising.
The selected hydrotechnical conditions of the Dnieper – Bug Channel and the Pripyat River in the development of the International Waterway E40
- Marcin Kalinowski
- Rafał Koba
- Patrycja Jerzyło
2017 Pełny tekst Bulletin of the Maritime Institute in Gdańsk
International waterway E40 (MDW E40) is included in the network of inland waterways of transnational importance. It is a link between two areas: the Baltic Sea and the Black Sea. E40 route runs through three countries: Poland, Belarus and Ukraine. The article presents the results of the study on the analysis of two very important sections of the MDW E40 on the Belarusian section, it is:. the Dnieper – Bug Channel and the Pripy River. Both elements from the point of view of navigability are the most important links throughout the Belarusian section of the waterway. This article will be useful for the development of plans for revitalization of the international waterway E40 not only on the Belarus part, but also in Poland and Ukraine. Due to the accession and signature by Poland of the AGN Convention in January 2017, the article can be a material to supporting state policy in the context of the development of the inland waterway system in Poland and Europe.
The silver layers in fiber-optic sensors
- Paulina Listewnik
- Melike Aydoğan
- Daria Majchrowicz
- Małgorzata Szczerska
2017
In this paper a method of application of the silver layers on the surface of an optical fiber was proposed. The optical properties and surface quality of the silver layer was examined by optical microscopy. The reflection and transmission of the sample were investigated. To evaluate the silver mirror it was placed in a fiber optic Fabry-Perot interferometer and the quality of the spectra was analyzed. The commercial mirror was used as a reference reflective layer. The studies confirm that the silver layer obtained in laboratory can be used for the application in the fiber-optic sensor and it is just as good as commercial mirror.
The Snow Team Problem
- Dariusz Dereniowski
- Andrzej Lingas
- Mia Persson
- Dorota Osula
- Paweł Żyliński
2017
We study several problems of clearing subgraphs by mobile agents in digraphs. The agents can move only along directed walks of a digraph and, depending on the variant, their initial positions may be pre-specified. In general, for a given subset~$\cS$ of vertices of a digraph $D$ and a positive integer $k$, the objective is to determine whether there is a subgraph $H=(\cV_H,\cA_H)$ of $D$ such that (a) $\cS \subseteq \cV_H$, (b) $H$ is the union of $k$ directed walks in $D$, and (c) the underlying graph of $H$ includes a Steiner tree for~$\cS$. We provide several results on parameterized complexity and hardness of the problems.
The structure of demand and its economic consequences for urban transport
- Krzysztof Grzelec
- Olgierd Wyszomirski
2017 Research Journal of the University of Gdańsk Transport Economics and Logistics
The structure of demand for urban transport services, determined by the share of passengers entitled to free and reduced fares, is an important factor influencing its economic condition. The aim of this article is to present the results of research into the structure of demand for urban transport as well as its economic consequences. The article begins by considering the nature of the determinants and consequences of the public functionality of urban transport, before going on to discuss the methodology of the structure of demand study within these services. This provides the background for analysis of the results of the aforementioned study in chosen cities and allows the economic consequences to be determined. The annual deficit of urban transport was compared with a hypothetical full reimbursement of revenue lost due to free and reduced fares. The article ends with a presentation of its basic conclusions.
THE STUDY OF WATER POLLUTION OF THE LOWER VISTULA RIVER BY PLASTIC PARTICLES
- Piotr Zima
- Paweł Wielgat
- Artur Cysewski
2017
Since the beginning of widespread use of plastic its consumption and production has been constantly increasing. As a result of human activity part of waste ends up in our environment and is deposited in each of the elements of the biosphere. These impurities can be in the form of large elements, small particles fragmented to macroscopic level (pellets, facial scrub grains) and the microparticles visible under a microscope. Particularly harmful for the environment are microplastic particles, which can be deposited in living organisms. Impurities get into surface waters, and then through rivers into the seas and oceans, as the final reservoir. Currently greater attention is paid to rivers. In rivers plastic can undergo further fragmentation and be transported along with water and bed sediment. The article describes the trial attempt to determine the content of plastic in the water of the lower Vistula- the largest river flowing into the Baltic Sea. The material extraction for the research was done in the Tczew gauge profile (Km 33+080). During this process the hydrometric measurements and the velocity distribution and flow rate using ADCP device was completed. For sampling were used plankton nets - the first with the mesh size of 0.5 mm and the inlet dimensions of 0.2x0.4 m and second with the 0.2 mm and 0.2x0.3 m. 0.5 mm nets were placed in the mainstream (velocity of approx. 1m/s) at the surface and at a depth of 0.5 m. 0.2 mm net was put at the bottom and left for sampling. After filtration of approx. 100 m3 of water, nets with samples were preserved and transported to the laboratory. The resulting catch at the surface and at a depth of 0.5 m contained plant parts and wood fragments, and the mesh placed at the bottom caught sand, wood fragments and shells. Then the samples were dried at room temperature. In order to reduce the organic matter, the dry samples were placed in a 20% solution of H2O2 and then in a 20% solution of HCl. The acquired portion of bed sediment (705g dry weight) after etching was subjected to flotation in a 40% ZnCl2 solution. After the sand sedimentation, the solution was filtered. The samples were examined microscopically. During the investigation, some plastic particles were found plastic (size of 1-2 mm or more). While examining under a microscope at 60 times magnification were noticed single plastic fibers. The study helped to identify the presence of forms of plastic on the macroscopic and microscopic level.
The System of the Supervision and the Visualization of Multimedia Data for BG
- Marek Blok
- Bartosz Czaplewski
- Sylwester Kaczmarek
- Jacek Andrzej Litka
- Marcin Narloch
- Maciej Sac
2017
Monitoring of country maritime border is an important task of the Border Guard. This task can be facilitated with the use of the technology enabling gathering information from distributed sources and its supervision and visualization. The system presented in the paper is an extension and enhancement of the previously developed distributed system map data exchange system. The added functionalities allow supplementation of map data with multimedia (telephone and radio calls, video (cameras), photos, files, SMS/SDS) and presentation of current and archival situation on a multi-display screen in the Events Visualization Post. The system architectures, functionalities and main system elements are briefly described and supported with preliminary analysis and test results.
The Taxonomy Spatial Measure of Development in the Standard of Living Analysis
- Marta Kuc-Czarnecka
2017 Pełny tekst Acta Universitatis Lodziensis Folia Oeconomica
Incorporation of spatial relationships in the construction of taxonomy measure of development is gaining popularity in Polish literature. However, there is no one common idea concerning how the spatial relationship should be taken into account when creating a synthetic variable nor, indeed, where the spatial weight matrix should be placed. It seems that the inclusion of spatial relationships is more important in smaller regions’ analysis, as they are more affected by the situation in the neighbourhood. This explains why, in this research, rankings of the standard of living in Nordic regions were constructed on the basis of proposals presented by Antczak, Pietrzak and Sobolewski, Migała‑Warchoł and Mentel. The aim of this study is to identify the advantages and disadvantages of above‑mentioned approaches and to compare the compliance of results obtained from them.