2016 - Repozytorium publikacji - Politechnika Gdańska

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The Reference Model of Tools Adaptation in the Perspective of Technological Agile Transformaton in IT Organizations
- Cezary Orłowski
- Bartosz Chrabski
- Artur Ziółkowski
- Tomasz Deręgowski
- Miłosz Kurzawski
2016
The scientific aim of the presented paper is the analysis of agile transformation processes in IT organizations in technological perspective of such transformation. The phenomenon of agile transformation becomes a complex challenge for an IT organization, since it has not been analysed in detail so far. There is not any research on the readiness of IT organizations for the realization of agile transformation processes, and such processes prove to be of uncontrolled character. Therefore, to minimize the risk of failure referring to the realization of transformation processes, it is necessary to monitor them in few perspectives (like perspective of processes, people or technology). This article presents technological aspects of agile transformation processes and is divided of three main parts.
The response of three colliding models of steel towers to seismic excitation
- Barbara Sołtysik
- Robert Jankowski
2016 Pełny tekst Czasopismo Techniczne
A number of past and recent observations have confirmed that collisions between adjacent, insufficiently-separated structures occurring as a result of seismic excitation (structural pounding) may result in serious damage to structural elements and can even lead to their total destruction. This paper summarises the results obtained from a shaking table experimental study which investigated structural pounding between three adjacent models of steel towers. The study included different configurations of towers and distances between the structures. The results of the study confirmed that collisions have a significant influence upon the behaviour of the towers, leading to the increase as well as decrease in the structural response.
The Review of the Selected Challenges for an Incorporation of Daylight Assessment Methods into Urban Planning in Poland
- Natalia Sokół
- Justyna Martyniuk-Pęczek
2016 Pełny tekst Procedia Engineering
The main objectives of this research it to find out if modern daylight assessment and design methods can be useful for urban residential planning in Poland. The study gives a chance to describe and appraise modern daylight design techniques. The other purpose is to illustrate how daylight knowledge could be used as an incentive to rethink the way urban environments are created. Although daylight design is acknowledged in literature and case studies as a tool for fostering residents’ well-being, daylight design techniques are not common practice in Poland. A review of current Polish building and lighting regulations regarding daylight is presented. The results of the two pilot questionnaires show a lack of daylight training among future architects and urban specialists. The first survey carried out among 54 students illustrates the importance of daylight as a natural resource which is essential in sustainable approaches to urban planning. It also highlights the belief that daylight and electric light projects should be holistically integrated in the implementation of the city lighting plans. The results of the second pilot study show a growing demand for better daylight education and an urgent need for revision of the existing recommendations in Poland.
The Revitalization Processes of the Port Structures in Gdynia and Gdansk on the Background of Contemporary Port Changes
- Tomasz Szymański
2016
Transformations of the port facilities against the modernization of the port structures are present in many city-port centers since more than 50 years. The modernization taking place in the ports located in Gdynia-Gdansk mainly concerns communication availability and adapted to the multimodal technology of transport and transshipment. Developing specialized tech-terminals serving a specific type of load, causes development of the port at the areas more and more distant from the historic port structures. To achieve the main objectives of the port redevelopment; re-use abandoned, often damaged buildings and areas, to achieve high functional standards and environmental conditions, worldwide experience determine the most important success factors. Waterfront must have real strategic significance and location for the development of the city. The basic advantage is direct contact with the water. Waterfront must represent a wealth of port heritage buildings, infrastructure and port facilities. Important symbolic value of the area determined its cultural identity. The identity of the historical influences of the nature of port area, both in the context of the past and the future. Multifunctional land use and port facilities is a priority of thinking about their revitalization. Should be helped by the public, unlimited access to port areas. Social, active participation of residents in the decision-making process of change is part of the sustainable development of the port and also the basic condition for any changes. This is possible by the protection of the environmental quality of port areas, aquatorium in particular. Functional transformation, specific requirements of space, technology of the port areas makes them to suit the changing economic conditions. Migration to more convenient locations is integrally linked with the necessity of reconstruction of the existing transportation system. Parallel to trend of going out by the ports in the direction of deep-water aquatory, there is the phenomenon of the port functions returns and modernization within the old port. It means strong redefinition of all areas use and zoning. In many cases it doesn’t mean a break with the nature of the port areas.
The role of glucuronidation in drug resistance
- Zofia Mazerska
- Anna Mróz
- Monika Pawłowska
- Ewa Augustin
2016 PHARMACOLOGY & THERAPEUTICS
The final therapeutic effect of a drug candidate, which is directed to a specific molecular target strongly depends on its absorption, distribution, metabolism and excretion (ADME). The disruption of at least one element of ADME may result in serious drug resistance. In this work we described the role of one element of this resistance: phase II metabolism with UDP-glucuronosyltransferases (UGTs). UGT function is the transformation of their substrates into more polar metabolites, which are better substrates for the ABC transporters, MDR1, MRP and BCRP, than the native drug. UGT-mediated drug resistance can be associated with (i) inherent overexpression of the enzyme, named intrinsic drug resistance or (ii) induced expression of the enzyme, named acquired drug resistance observed when enzyme expression is induced by the drug or other factors, as food-derived compounds. Very often this induction occurs via ligand binding receptors including AhR (aryl hydrocarbon receptor) PXR (pregnane X receptor), or other transcription factors. The effect of UGT dependent resistance is strengthen by coordinate action and also a coordinate regulation of the expression of UGTs and ABC transporters. This coupling of UGT and multidrug resistance proteins has been intensively studied, particularly in the case of antitumor treatment, when this resistance is "improved" by differences in UGT expression between tumor and healthy tissue. Multidrug resistance coordinated with glucuronidation has also been described here for drugs used in the management of epilepsy, psychiatric diseases, HIV infections, hypertension and hypercholesterolemia. Proposals to reverse UGT-mediated drug resistance should consider the endogenous functions of UGT.
The role of heterotrophic plate count bacteria in bottled water quality assessment
- Malwina Diduch
- Żaneta Polkowska
- Jacek Namieśnik
2016 FOOD CONTROL
The ever-growing popularity of bottled water is the result of many factors. One of the most relevant is the widespread belief that bottled water is safer for drinking than tap water. In fact many literature sources describe the rapid growth of the amounts of microorganisms in bottled water samples following the bottling process. The main purpose of this article is to collect the information on the factors which may affect this phenomenon and to assess the suitability of the existing microbiological requirements for this type of products in the context of consumer health protection.
THE ROLE OF THIN FUNCTIONAL LAYERS IN SOLID OXIDE FUEL CELLS
- Sebastian Molin
- Aleksander Chrzan
- Jakub Karczewski
- Dagmara Grudzień
- Piotr Jasiński
2016 ELECTROCHIMICA ACTA
Widespread commercialization of solid oxide fuel cells requires lowering its cost. It is generally accepted that to lower the cost of solid oxide fuel cells it is necessary to use metal alloys as interconnectors and, consequently, lower its operating temperature to slow down interconnectors degradation. As a result the area specific resistance of the cathodes should be lowered to sustain the performance of the cells. In order to slow the interconnectors degradation (due to corrosion and interdiffusion with the anode) and improve the performance of the cathodes, novel functional layers are introduced to the structure of the fuel cells. In this paper, results related to three kinds of functional layers will be presented: a thin cathode layer between the porous cathode layer and the electrolyte to improve the cathode performance, a buffer layer between the electrolyte and the cathode to slow down inter-diffusion of atoms and thin and dense interconnector coatings to slow down interconnectors degradation. The investigated layers are deposited by cost effective spin coating and spray pyrolysis methods. Introduction of the layers show positive and promising results.
THE SCIENTIFIC CAPACITY AS AN INNOVATION DETERMINANT OF THE POLISH REGIONS
- Anna Lis
- Adrian Lis
2016 Prace Naukowe Wyższej Szkoły Bankowej w Gdańsku
Every Polish region (in the paper understood as a voivodship) is an inspiring ground for comparative studies on the national as well as European scale, i.e. with regard to the administrative units of the other European countries. The aim of the article is to advance the conclusions concerning the Regional Innovation Scoreboard – a European instrument applied to examine the innovation capacity of European regions – with the issues on regional scientific capacity. Although they are omitted in the document, the issues are essential for a proper analysis and comparison of regional innovation. The study presented in the article concerns the voivodships of Poland and begins with their general classification set up in accordance with and applied by the Regional Innovation Scoreboard. The subsequent derivations are extended with the scientific capacity of the voivodships, which gave grounds for drawing conclusions on the innovation level of the Polish regions and their scientific capacity as well as allocating them into four ranking groups – Leaders, Vice-Leaders, Followers and After-Followers.
The significance of the underground experience: Selection of reference design cases from the underground public transport stations and interchanges of the European Union
- Kalina Juchnevic
- Franklin Hoeven
2016 TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY
Abstract Background Recent research into the way public transport users appreciate stations and interchanges has highlighted several key aspects. Importantly, the optimization of these facilities should not simply aim to resolve dissatisfiers, but should also focus on addressing satisfiers, through the incorporation of factors such as comfort and experience. ‘Soft requirements,’ which have emerged in architecture and urban design, need to crossover to the urban underground infrastructure (as an element of urban underground space) in order to meet the expectations of public transport users. Method This study applies an innovative methodology in the analysis of good practice in urban underground space design, a method more commonly found in cultural studies. Three dimensions in the appreciation of a creative design are considered: views held by the general public; views held by peers (other artists or designers); and views expressed by critics. Using this framework, the article discusses prominent showcases of European underground public transport stations and interchanges, in order to identify design principles that determine a positive user experience of an urban underground space. Results A comprehensive overview of good practice with regard to urban underground station design was produced, using reference design cases. The cases included are: Canary Wharf Underground Station; the Georg-Brauchle-Ring Station; Souterrain Tram Tunnel; Triangeln Railway Station; Toledo Metro Station; Fővám Tér Station and Szent Gellért Tér Station (Twin Stations); Chatelet-Les Halles RER Hub; Canary Wharf CrossRail Station; and Birmingham New Street Station. Analysis of these reference design cases (and the good practices involved) allows for the description of ‘satisfying’ design solutions. Conclusion A robust analysis of a well-designed urban underground space can be made based on the opinions of users, peers and critics, through the use of social media, via recognition in prizes and awards and through indexed architectural periodicals. The design principles constituting good practice in underground space design identified in this study are: canopy; open station box; underground morphology and textures; architectural light; intervisibility; art; volume; and proximity.
The stereoselective formation of β-lactams with acyl ketenes generated from 5-acyl-Meldrum's acids
- Anna Zakaszewska
- Ewelina Najda-Mocarska
- Sławomir Makowiec
2016 Pełny tekst NEW JOURNAL OF CHEMISTRY
Acyl ketenes formed during thermal decompositions of 5-acyl-2,2-dimethyl-1,3-dioxa-4,6-diones undergo stereoselective [2+2] cycloaddition to chiral aldimines. We report the first example of optically active 3-acyl-β-lactams formation from Meldrum’s acid derivatives.
The structure of the control system for a dynamically positioned ship
- Roman Śmierzchalski
2016
The article discusses functions and tasks of dynamic positioning (DP) systems for ships. The analysed issues include ship steering, in particular stabilisation of ship position and direction of motion (real course) at low manoeuvring speeds, and commonly used DP ship models. Requirements imposed by classification societies on DP ships are quoted. A multi-layer structure of the DP control system is presented, with special attention being paid to such issues as signal filtering, estimation of measured and non-measured quantities, selecting the control method and DP controller, and rudder and drive allocation. The article has a form of an overview of basic problems of DP ship control.
The structure of the data flow in integrated urban traffic management systems – the case of TRISTAR system
- Jacek Oskarbski
- Marcin Zawisza
- Karol Żarski
2016 Archives of Transport System Telematics
The purpose of the article is to offer some insight into the data flow architecture in the Tri-City’s integrated traffic management system called TRISTAR. To that end selected elements of TRISTAR are identified and described as well as the structure for collecting and exchanging data within different sub-systems. Finally, the article highlights how the TRISTAR system can be extended by adding new elements and modules.
The study of acoustic climate of the Southern Baltic
- Grażyna Grelowska
- Eugeniusz Kozaczka
2016 Pełny tekst Journal of the Acoustical Society of America
This paper presents the statistical characteristics of seawater properties, which are necessary for predicting the propagation of acoustic waves in selected areas of the Baltic Sea. The statistics were elaborated based on long-term measurements of vertical distributions of sound speed, temperature, and salinity, and the nonlinearity parameter B/A. Nonlinear properties of the environment are considered, in connection to the use of devices based on parametric acoustic wave generation. Special attention was paid to the environmental aspects of the propagation of underwater noise generated by ship operations. Statistical characteristics of the vertical distribution of sound are shown as mean values, and the differences associated with statistical, seasonal, as well as, long-term, changes.
The symmetric extendibility of quantum states
- Marcin Nowakowski
2016 Journal of Physics A-Mathematical and Theoretical
Studies on the symmetric extendibility of quantum states have become particularly important in the context of the analysis of one-way quantum measures of entanglement, and the distillability and security of quantum protocols. In this paper we analyze composite systems containing a symmetric extendible part, with particular attention devoted to the one-way security of such systems. Further, we introduce a new one-way entanglement monotone based on the best symmetric approximation of a quantum state and the extendible number of a quantum state. We underpin these results with geometric observations about the structures of multi-party settings which posses substantial symmetric extendible components in their subspaces. The impossibility of reducing the maximal symmetric extendibility by means of the one-way local operations and classical communication method is pointed out on multiple copies. Finally, we state a conjecture linking symmetric extendibility with the one-way distillability and security of all quantum states, analyzing the behavior of a private key in the neighborhood of symmetric extendible states.
The Urban Mentoring as a New Method of Participatory Urban Planning in Poland
- Justyna Martyniuk-Pęczek
- Gabriela Maria Rembarz
2016 Pełny tekst Procedia Engineering
Twenty-five years after the return of democracy and the beginning of basing the country's economy on neoliberal developmental paradigm, Poland adopted the regulations regarding management of urban policy, which had been wait for over a decade (accession to the EU). The National Urban Policy as well as the Act on revitalization have defined, in a modern manner, the field of cooperation between the local government, the administration and the residents; the transition to the second stage of a democratic society – the residents as the co-hosts of the urban space. Slow evolution of this relation, heavily laden by the legacy of the previous system, in recent years has gained significant dynamics – urban activism in a country with a relatively weak tradition of urban culture, among the new generation (the new Polish townspeople) has become not so much as a fad, but a cultural trend, a philosophy of life. It seems, that the difficult dialogue between a city of community worker-activists and a city of engineer-professionals is one of the major fields of research on the Cognitive City in Poland. After decades of domination of technocratic relations within city management, which used to leave the shaping of the vision for a city's development in the hands of an inner circle of administration, a period of radical and fundamental criticism of professional (technical) knowledge has followed, turning into a nearly complete deification of the social side's full competence. Public debate, as an ideological dispute about neoliberal city planning by nature, has been growing under the slogans “the right to the city”.
The Use of an Ontotrigger for Designing the Ontology of a Model Maturity Capsule
- Cezary Orłowski
- Paweł Kapłański
- Ngoc-Thanh Nguyen
- Marcin PIetranik
2016 Pełny tekst INTERNATIONAL JOURNAL OF SOFTWARE ENGINEERING AND KNOWLEDGE ENGINEERING
The aim of this work is to give the definition and present the possibility of applying (introduced and defined here) ontotriggers to design the ontology of a maturity capsule used in the assessment of IT projects. The complexity of designing ontology processes raises the question of whether there is a need for designing ontologies in a situation where it is possible to map them. The work is divided into four main parts. The first part presents and defines the concept of an ontotrigger. The second part presents a model maturity capsule. Similarities to the maturity capsule of a project managed in accordance with the SCRUM methodology have also been indicated. The third part discusses the method of building ontologies for both capsules and indicates the possibility of mapping them. The fourth part presents the application of an ontotrigger which uses the ability to map both ontologies. In summary, the applicability of ontotriggers has been demonstrated for the design of ontologies of any class and their objects. The process of verifying this applicability for two maturity capsules: the model and SCRUM maturity capsules, showed that the design of ontologies for any IT project management method can be implemented through maturity capsule ontotriggers rather than designing new ontologies.
THE USE OF FEM FOR DETERMINATION OF RESONANT FREQUENCIES OF CIRCULAR SAW BLADES WITH INDIRECT TEETH IN GULLETS
- Anna Danuta Kaczmarek-Peniakova
- Kazimierz Orłowski
2016 Pełny tekst Trieskove a Beztrieskove Obrabanie Dreva
Understanding the dynamical properties of the circular saw blade is necessary, since, there is a really need for a stable work at working rotational speeds, which are determined by frequencies at which the circular saw blade tends to vibrate. It was observed that the resonant frequency depend on the circular saw blade shape, a collar diameter and on saw’s teeth shape. In the presented work an attention was paid to the effect of indirect teeth in the saw blade gullets on resonant frequencies. This article presents the results of the FEM modeling carried out on examples the circular saw equipped with indirect teeth, which are used to eject the chips, and the circular saw without those teeth. Modeling was done with the use of the commercial software, due to a desire of testing capabilities of such programs.
The Use of Free Adjustment and Msplit-Estimation for Determination of the Vertical Displacements in Unstable Reference System
- Daria Filipiak-Kowszyk
- Waldemar Kamiński
2016
The problem of the determining of the displacements of engineering objects and their surroundings is the current and important issue in the field of engineering geodesy. Most control measurements are made in relation to reference points (stable points). On the other hand, sometimes it happens that it is not possible perform the measurements with reference to the stable points or identification of stable points is difficult. Therefore, one of the solutions may be the determination of displacements in unstable reference system. One way to solve this problem with using Msplit estimation is presented in [11]. The author of the paper [11] conducted an analysis of the acceptance of erroneous assumptions about the stability of the reference point. In this paper the authors proposed the calculation algorithm that takes into account the use of free adjustment and Msplit estimation to determine the vertical displacements of controlled points.
The use of HPLC-Q-TOF-MS for comprehensive screening of drugs and psychoactive substances in hair samples and several “legal highs” products
- Justyna Aszyk
- Agata Kot-Wasik
2016 Pełny tekst MONATSHEFTE FUR CHEMIE
Non-targeted screening of drugs present in herbal products, known as “legal high” drugs and in hair as a biological matrix commonly used in toxicological investigations was accomplished with the use of high pressure liquid chromatography coupled with quadrupole time-of-flight mass spectrometry (HPLC-Q-TOF-MS). In total, 25 and 14 therapeutical drugs and psychoactive substances/metabolites were detected in investigated hair samples and herbal products, respectively. We demonstrate that the HPLC-Q-TOF methodology seems to be a powerful tool in the qualitative analysis applied in identification of these designer drugs, thus enabling a laboratory to stay-up-to-date with the drugs that are being sold as legal high products on black market.
The Use of the Language of Mathematics as an Inspiration for Contemporary Architectural Design
- Anna Czech
- Justyna Borucka
2016 Pełny tekst Procedia Engineering
The purpose of the article is to present the evolution of the use of mathematical language as an inspiration for creating spatial, three-dimensional forms in art and architecture. The article focuses on the possibilities for art and architectural design ideas gained by contemporary mathematics, algorithms and computational parametric approach. The analysis of various examples represents the relationships between the composition of spatial forms and the rules of mathematics. It is evident in different time frames, different styles and different approaches to thinking about and creating art and architecture. The starting point for this analysis is the symbolic Vitruvian golden ratio and its impact on the principles of spatial forms composition. Next, using the study of the geometric art of folding and cutting paper to create three-dimensional spaces, elements of applied art or even furniture or clothing, the article reaches to the mathematical issue of fractals, as the most accurate illustration of the aims of the parameterization in contemporary architecture. Parametric architecture, as a way of thinking about building as a set of numerically coded aspects, demonstrates the possibilities of using mathematical resources to improve functioning of the building by using optimization algorithms. The article shows possibilities of such uses of mathematics in generating spatial forms. Further, this analysis asks about the possible risks and disadvantages of such an approach, wondering if the correct definition of architecture is possible to achieve simply by using language of mathematics without all the other immeasurable aspects.