2021 - Repozytorium publikacji - Politechnika Gdańska

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Microstructural Design of Ba0.5La0.5Co0.5Fe0.5O3 Perovskite Ceramics
- Daria Gierszewska
- Iga Szpunar
- Francis Oseko
- Joanna Pośpiech
- Małgorzata Nadolska
- Martyna Pieragowska
- Karolina Reniecka
- Kinga Waniek
- Karol Leszczyński
- Aleksandra Mielewczyk-Gryń
- Maria Gazda
- Sebastian Wachowski
2021 Pełny tekst Materials
Ba0.5La0.5Co0.5Fe0.5O3 was synthesized in the solid-state reaction route. The influence of ball milling parameters (such as milling media size, angular velocity, and time), pelletizing pressure, and annealing parameters on the microstructure was studied. The grain size distribution and density or specific surface area changes were investigated in each approach while the individual parameters were changed. The evaluation of BLCF synthesis parameters enables tailoring the microstructure to various applications. It was observed that with lowering the size of milling balls and increasing the angular velocity the material will be porous and thus more appropriate as electrode material in proton ceramic fuel cell or electrolyzer. An increase of time, balls diameter, and/or angular velocity of milling enables one to densify the material in case of membrane application in, e.g., as a gas sensor. The significant influence on densification has also annealing temperature increase. Applying 1200 C during annealing leads to dense material, while at 1100 C shows visible porosity of the product. In this work, we present the results of the BLCF synthesis parameters change allowing the selection of appropriate parameter values depending on the further application as PCCs.
Microstructure and mechanical properties of laser surface-treated Ti13nb13zr alloy with MWCNTs coatings
- Beata Majkowska-Marzec
- Joanna Sypniewska
2021 Pełny tekst Advances in Materials Science
Laser surface modification of titanium alloys is one of the main methods of improving the properties of titanium alloys used in implantology. This study investigates the microstructural morphology of a laser-modified surface layer on a Ti13Nb13Zr alloy with and without a carbon nanotube coating deposited by electrophoretic deposition. Laser modification was performed for samples with and without carbon nanotube coating for two different laser powers of 800 W and 900 W and for different scan rates: 3 mm/s or 6 mm/s at 25 Hz, and the pulse duration was 2.25 ms or 3.25 ms. A scanning electron microscope SEM was used to evaluate the surface structure of the modified samples. To observe the heat-affected zones of the individual samples, metallographic samples were taken and observed under an optical microscope. Surface wettability tests were performed using a goniometer. A surface roughness test using a profilograph and a nanoindentation test by NanoTest™ Vantage was also performed. Observations of the microstructure allowed to state that for higher laser powers the surfaces of the samples are more homogeneous without defects, while for lower laser powers the path of the laser beam is clearer and more regular. Examination of the microstructure of the cross-sections indicated that the samples on which the carbon nanotube coating was deposited are characterized by a wider heat affected zone, and for the samples modified at 800 W and a feed rate of 3 mm/s the widest heat affected zone is observed. The wettability tests revealed that all the samples exhibit hydrophilic surfaces and the samples with deposited carbon nanotube coating increase it further. Surface roughness testing showed a significant increase in Ra for the laser-modified samples, and the presence of carbon nanotubes further increased this value. Nanoindentation studies showed that the laser modification and the presence of carbon coating improved the mechanical properties of the samples due to their strength.
Microstructure and Properties of Electroless Ni-P/Si3N4 Nanocomposite Coatings Deposited on the AW-7075 Aluminum Alloy
- Kazimierz Czapczyk
- Paweł Zawadzki
- Natalia Wierzbicka
- Rafał Talar
2021 Pełny tekst Materials
The article presents the results of mechanical and tribological tests of Ni-P/Si3N4 nanocomposite coatings deposited on the AW-7075 aluminum alloy using the chemical reduction method. The influence of the chemical composition on the Vickers microhardness determined by the DSI method was examined. The nanocomposite layers were made of Si3N4 silicon nitride in a polydisperse powder with a particle size ranging from 20 to 25 nm. The influence of the content of the dispersion layer material on the adhesion to the substrate was analyzed. The abrasive wear was tested and determined in the reciprocating motion using the “ball-on-flat” method. The surface topography was examined by the contact method with the use of a profilometer. Based on the obtained test results, it was found that the Ni-P/Si3N4 layers produced in the bath with the Si3N4 nanoparticle content in the amount of 2 g/dm3 are more resistant to wear and show greater adhesion than the Ni-P/Si3N4 layers deposited in the bath with 5 g/dm3 of the dispersion phase. NiP/Si3N4 layers provide protection against abrasive wear under various loads and environmental conditions.
Międzynarodowy Projekt "Walizka". Galeria R+ Akademia Sztuki w Szczecinie
- Dominika Krechowicz
2021
Projekt "Walizka", koncepcja: prof. dr hab. Zbigniew Szot Uniwersytet Artystyczny w Poznaniu, Wydział Malarstwa i Rysunku. W projekcie wzięło udział 23 artystów z Polski oraz z Czech, Niemiec, Gruzji I Japonii. Koncepcja projektu dotyczy szeroko pojętego tematu podróży. W obecnych czasach zagrożenia COVID-19 słowo „podróż” zaczyna nabierać zupełnie innego znaczenia. Żyjąc i tworząc w izolacji od wielu miesięcy, została stworzona wspólnie autonomiczna kolekcja prac, dedykowanych tylko tej walizce, która teraz jest wysyłana w podróż. Prace i walizka stanowią nierozłączną całość. Koncepcją projektu jest zaprezentowanie prac w wybranych miejscach oraz pozostawienie swojego znaku na wieku walizki. Wystawa została zaprezentowana w terminie 17-28.05.2021 w Galerii R+ w Akademii Sztuki w Szczecinie. Adres: plac Orła Białego 2, 70-562 Szczecin kurator wystawy: prof.dr hab.Zbigniew Szot
Międzynarodowy Projekt Walizka. Wystawa w Galerii Feininger. Trzebiatów
- Dominika Krechowicz
2021
Projekt "Walizka", koncepcja: prof. dr hab. Zbigniew Szot Uniwersytet Artystyczny w Poznaniu, Wydział Malarstwa i Rysunku. W projekcie wzięło udział 23 artystów z Polski oraz z Czech, Niemiec, Gruzji I Japonii. Koncepcja projektu dotyczy szeroko pojętego tematu podróży. W obecnych czasach zagrożenia COVID-19 słowo „podróż” zaczyna nabierać zupełnie innego znaczenia. Żyjąc i tworząc w izolacji od wielu miesięcy, została stworzona wspólnie autonomiczna kolekcja prac, dedykowanych tylko tej walizce, która teraz jest wysyłana w podróż. Prace i walizka stanowią nierozłączną całość. Koncepcją projektu jest zaprezentowanie prac w wybranych miejscach oraz pozostawienie swojego znaku na wieku walizki. Wystawa została zaprezentowana w terminie 3 - 28 lipca 2021 w Galerii Feininger, w Trzebiatowskim Ośrodku Kultury w Trzebiatowie kurator wystawy: prof.dr hab.Zbigniew Szot
Migration of container terminals as their natural process of evolution: Case study of Gdańsk and Gdynia ports
- Karolina Krośnicka
2021 Pełny tekst Journal of Transport Geography
The paper proposes a theoretical model of container terminals and container port development, based on the life cycle theory, threshold theory and catastrophe theory, and in references to Kuznets' swings (interpreted as waves of infrastructural investments), and Kondratiev long economic waves. The aim of this model is to explain the development process of a container terminal and a port within one technological generation, as well as in intergenerational configuration, and relate it to the migration process of container terminals in the scale of a port-city urban area. Then, the applicability of this model was checked in the case of the container ports in Gdynia and Gdańsk (Poland). The analysed evolution process of ports of Gdynia and Gdańsk conforms with the proposed theoretical model, proving that the migration of container terminals within these ports is a part of their natural process of evolution, being a consequence of their threshold development and location splitting. Considering the physical location of development investments within the container ports of Gdańsk and Gdynia, it was noticed that there are two basic directions of migration of container terminals. One is the migration of the port's main container activity (core terminal or terminals), being a result of a generational change taking place after overcoming the maturity point. The second type of migration is connected with dispersion of port development investments in the increasingly distant port hinterland, caused by the need of the life extension of terminals within one technological generation. In an analogy to the processes of development of living organisms, we can treat the migration of terminal outsourced functions as a “vegetative” increase, being an attempt to extend the life of the terminal, while the migration of the core terminal within the port area (erecting a new generation terminal) can be treated as “generative” growth.
Mild poikilocapnic hypoxia increases very low frequency haemoglobin oxygenation oscillations in prefrontal cortex
- Agnieszka Gruszecka
- Monika Waskow
- Marta A. Malkiewicz
- J Neary
- Jyotpal Singh
- Taylor Teckchandani
- Gregory Kratzig
- Magdalena Wszedybyl-Winklewska
- Andrzej F. Frydrychowski
- Jacek Rumiński
- Natalia Głowacka
- Piotr Lass
- Pawel Winklewski
- Marcin Gruszecki
2021 Pełny tekst BIOLOGICAL RESEARCH
Background: The aim of the study was to investigate the effect of mild cerebral hypoxia on haemoglobin oxygenation(HbO2), cerebrospinal fluid dynamics and cardiovascular physiology. To achieve this goal, four signals were recorded simultaneously: blood pressure, heart rate / electrocardiogram, HbO2 from right hemisphere and changes of subarachnoid space (SAS) width from left hemisphere. Signals were registered from 30 healthy, young participants (2 females and 28 males, body mass index = 24.5 ± 2.3 kg/m2, age 30.8 ± 13.4 years). Results: We analysed the recorded signals using wavelet transform and phase coherence. We demonstrated for the first time that in healthy subjects exposed to mild poikilokapnic hypoxia there were increases in very low frequency HbO2 oscillations (< 0.052 Hz) in prefrontal cortex. Additionally, SAS fluctuation diminished in the whole frequency range which could be explained by brain oedema. Conclusions: Consequently the study provides insight into mechanisms governing brain response to a mild hypoxic challenge. Our study supports the notion that HbO2 and SAS width monitoring might be beneficial for patients with acute lung disease.
Mild X-linked Alport syndrome due to the COL4A5 G624D variant originating in the Middle Ages is predominant in Central/East Europe and causes kidney failure in midlife
- Aleksandra M. Żurowska
- Olga Bielska
- Patrycja Daca-Roszak
- Maciej Jankowski
- Maria Szczepańska
- Dagmara Roszkowska-Bjanid
- Elżbieta Kuźma-Mroczkowska
- Małgorzata Pańczyk-Tomaszewska
- Anna Moczulska
- Dorota Drożdż
- Despina Hadjipanagi
- Constantinos Deltas
- Danuta Ostalska-Nowicka
- Alina Rabiega
- Janina Taraszkiewicz
- Katarzyna Taranta-Janusz
- Anna Wieczorkiewicz-Plaza
- Katarzyna Jobs
- Judyta Mews
- Kinga Musiał
- Anna Jakubowska
- Hanna Nosek
- Anna E. Jander
- Constantina Koutsofti
- Anna Stanisławska-Sachadyn
- Dominka Kuleszo
- Ewa Ziętkiewicz
- Beata S. Lipska-Ziętkiewicz
2021 Pełny tekst KIDNEY INTERNATIONAL
A study of 269 children enrolled into a National Registry for children with persistent glomerular hematuria identified 131 individuals with genetically confirmed X-linked Alport Syndrome. A single variant c.1871G>A p.Gly624Asp (G624D) in COL4A5 was predominant and accounted for 39% of Xlinked Alport Syndrome in unrelated Polish families (44 of 113). To evaluate its origins, the genetic variation in a 2.79 Mb segment encompassing the COL4A5 locus on chromosome X was assessed. All G624D alleles were found on the same rare haplotype background, indicating a founder effect dating back to the 12-13th century. The phenotypic data of 131 children with X-linked Alport Syndrome and their 195 affected adult relatives revealed that the G624D variant was associated with a significantly milder clinical course in comparison to other pathogenic COL4A5 variants. Furthermore the clinical course of this genetically uniform cohort was milder than that observed in individuals with other COL4A5 missense mutations. In spite of the benign clinical manifestation throughout childhood and early adulthood, the G624D variant confers significant risk for both kidney failure and deafness in males, albeit 20-30 years later than that observed in individuals with other COL4A5 pathogenic variants (50% cumulative risk of starting dialysis at 54 years (95% confidence interval: 50-62) v. 26 years (95% confidence interval: 22-30)). Thus, males with G624D are candidates for existing and emerging therapies for Alport Syndrome.
Mini-Cave Automatic Virtual Environment Application in Security, Safety, and Defence Studies
- Małgorzata Gawlik-Kobylińska
- Paweł Maciejewski
- Jacek Lebiedź
2021
The aim of the article is to analyse the use of mini-Cave Automatic Virtual Reality Environment (mini-CAVE) in academic studies on security, safety, and defence. The literature review based on Web of Science database and the case study of the War Studies University research activities indicated the mini-CAVE can be used in two areas as a research infrastructure and as a didactic tool. It can be concluded that due to the development of virtual reality worlds, the application of the mini-CAVE supports research and didactics activities, specifically in creating 3D scenarios for teaching concepts and processes, and simulating situations related to saving life and health.
Minichannel and minigap classification criteria based on the aspect ratio of the minigeometry: A numerical study
- Paweł Dąbrowski
- Ritunesh Kumar
2021 Pełny tekst INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER
A detailed numerical investigation has been carried out to analyze the diabatic flow distribution and velocity profile in 18 minigeometries with various aspect ratios for V-type and I-type flow configurations (for 36 cases) assuming ethanol as a working fluid. The aim of the study is to distinguish the value of the aspect ratio for which the flow in minigeometry starts to be two-dimensional (minigap). Cases with a constant Reynolds number of 4167 (variable mass flow rate) were compared. The normalized velocity profiles over the normalized width of the minigeometry acquired from the simulation have been compared with the theoretically calculated profiles based on the one-seventh power-law and turbulent flow theory. The results show that the one-seventh power-law velocity profiles are not consistent with the profiles simulated at an aspect ratio greater than 7. A new correlation for normalized velocity profile incorporating aspect ratio of the minigeometry for minigaps has been proposed. The conclusions are independent of the geometry depth, working fluid, and flow configuration.
Minimizing Greenhouse Gas Emissions From Ships Using a Pareto Multi-Objective Optimization Approach
- Zygfryd Domachowski
2021 Pełny tekst Polish Maritime Research
To confront climate change, decarbonization strategies must change the global economy. According to statements made as part of the European Green Deal, maritime transport should also become drastically less polluting. As a result, the price of transport must reflect the impact it has on the environment and on health. In such a framework, the purpose of this paper is to suggest a novel method for minimizing emissions from ships, based on so-called Pareto multi-objective optimization. For a given voyage by a ship, the problem is to minimize emissions on the one hand and minimize fuel consumption or passage time on the other. Minimizing emissions is considered as the preferred objective. Therefore, the objective of minimizing fuel consumption or passage time needs to be reformulated as a constraint. Solving such a problem consists of finding most favourable path and speed for the ship and satisfying the optimization criteria. Relatively new systems such as hybrid diesel–electric systems have the potential to offer significant emissions benefits. A hybrid power supply utilizes the maximum efficiency of the direct mechanical drive and the flexibility of a combination of combustion power from the prime mover and stored power from energy storage from an electrical supply, at part load and overload. A new report by the American Bureau of Shipping suggests that maritime transport is likely to meet the International Maritime Organization’s target by 2030, solely by using current technology and operational measures. However, this would not be enough to attain the target of reducing CO2 emissions by 2050 by at least 50% compared to 2008. New technologies and operational methods must be applied.
Mining inconsistent emotion recognition results with the multidimensional model
- Agnieszka Landowska
- Teresa Zawadzka
- Michal Zawadzki
2021 Pełny tekst IEEE Access
The paper deals with the challenge of inconsistency in multichannel emotion recognition. The focus of the paper is to explore factors that might influence the inconsistency. The paper reports an experiment that used multi-camera facial expression analysis with multiple recognition systems. The data were analyzed using a multidimensional approach and data mining techniques. The study allowed us to explore camera location, occlusions and algorithm factors in the late fusion of emotion recognition results. We proposed to use a multidimensional data model for mining the various interdependencies between the factors of inconsistency. The study allowed the exploration of challenges in multichannel emotion recognition. It was achieved by comparing the consistency of obtained emotions and identification of rules determining conditions when the obtained emotions are consistent. However, the main novelty of the paper is the method of mining the inconsistencies. The study might be interesting both for researchers dealing with integration in emotion recognition, as well as for practitioners who use automatic emotion analysis software and expect to get valid results.
Mispronunciation Detection in Non-Native (L2) English with Uncertainty Modeling
- Daniel Korzekwa
- Jaime Lorenzo-trueba
- Szymon Zaporowski
- Shira Calamaro
- Thomas Drugman
- Bożena Kostek
2021
A common approach to the automatic detection of mispronunciation in language learning is to recognize the phonemes produced by a student and compare it to the expected pronunciation of a native speaker. This approach makes two simplifying assumptions: a) phonemes can be recognized from speech with high accuracy, b) there is a single correct way for a sentence to be pronounced. These assumptions do not always hold, which can result in a significant amount of false mispronunciation alarms. We propose a novel approach to overcome this problem based on two principles: a) taking into account uncertainty in the automatic phoneme recognition step, b) accounting for the fact that there may be multiple valid pronunciations. We evaluate the model on non-native (L2) English speech of German, Italian and Polish speakers, where it is shown to increase the precision of detecting mispronunciations by up to 18% (relative) compared to the common approach.
Mitigating the seismic pounding of multi-story buildings in series using linear and nonlinear fluid viscous dampers
- Hytham Elwardany
- Robert Jankowski
- Ayman Seleemah
2021 Pełny tekst Archives of Civil and Mechanical Engineering
Seismic-induced pounding between adjacent buildings may have serious consequences, ranging from minor damage up to total collapse. Therefore, researchers try to mitigate the pounding problem using different methods, such as coupling the adjacent buildings with stiff beams, connecting them by using viscoelastic links, and installing damping devices in each building individually. In the current paper, the effect of using linear and nonlinear fluid viscous dampers to mitigate the mutual pounding between a series of structures is investigated. Nonlinear finite element analysis of a series of adjacent steel buildings equipped with damping devices was conducted. Contact surfaces with both contactor and target were used to model the mutual pounding. The results indicate that the use of linear or nonlinear dampers leads to the significant reduction in the response of adjacent buildings in series. Moreover, the substantial improvement of the performance of buildings has been observed for almost all stories. From the design point of view, it is concluded that dampers implemented in adjacent buildings should be designed to resist maximum force of 6.20 or 1.90times the design independent force in the case of using linear or nonlinear fluid viscous dampers, respectively. Also, designers should pay attention to the design of the structural elements surrounding dampers because considerable forces due to pounding may occur in the dampers at the maximum displaced position of the structure.
Mitigation effect of face shield to reduce SARS-CoV-2 airborne transmission risk: Preliminary simulations based on computed tomography
- Dmitry Tretiakov
- Krzysztof Tesch
- Andrzej Skorek
- Dmitry Tretiakow
2021 Pełny tekst ENVIRONMENTAL RESEARCH
We aimed to develop a model to quantitatively assess the potential effectiveness of face shield (visor) in reducing airborne transmission risk of the novel coronavirus SARS-CoV-2 during the current COVID-19 pandemic using the computational fluid dynamics (CFD) method. The studies with and without face shield in both an infected and healthy person have been considered in indoor environment simulation. In addition to the influence of the face shield and the synchronization of the breathing process while using the device, we also simulated the effect of small air movements on the SARS-CoV-2 infection rate (outdoor environment simulation). The contact with infectious particles in the case without a face shield was 12–20 s (s), in the presence of at least one person who was positive for SARS-CoV-2. If the infected person wore a face shield, no contact with contaminated air was observed during the entire simulation time (80 s). The time of contact with contaminated air (infection time) decreases to about 11 s when the surrounding air is still and begins to move at a low speed. Qualitative dif ferences between simulations performed on the patients with and without the face shield are clearly visible. The maximum prevention of contagion is probably a consequence of wearing a face shield by an infected person. Our results suggest that it is possible to determine contact with air contaminated by SARS-CoV-2 using the CFD method under realistic conditions for virtually any situation and configuration. The proposed method is probably the fastest and most reliable among those based on CFD-based techniques.
Mitochondrial DNA copy number and trimethylamine levels in the blood: New insights on cardiovascular disease biomarkers
- Laura Bordoni
- Irene Petracci
- Iwona Pelikant-Malecka
- Adrianna Radulska
- Marco Piangerelli
- Joanna J. Samulak
- Lukasz Lewicki
- Leszek Kalinowski
- Rosita Gabbianelli
- Robert A. Olek
2021 Pełny tekst FASEB JOURNAL
Among cardiovascular disease (CVD) biomarkers, the mitochondrial DNA copy number (mtDNAcn) is a promising candidate. A growing attention has been also dedicated to trimethylamine-N-oxide (TMAO), an oxidative derivative of the gut metabolite trimethylamine (TMA). With the aim to identify biomarkers predictive of CVD, we investigated TMA, TMAO, and mtDNAcn in a population of 389 coronary artery disease (CAD) patients and 151 healthy controls, in association with estab-lished risk factors for CVD (sex, age, hypertension, smoking, diabetes, glomerular filtration rate [GFR]) and troponin, an established marker of CAD. MtDNAcn was significantly lower in CAD patients; it correlates with GFR and TMA, but not with TMAO. A biomarker including mtDNAcn, sex, and hypertension (but neither TMA nor TMAO) emerged as a good predictor of CAD. Our findings support the mtD-NAcn as a promising plastic biomarker, useful to monitor the exposure to risk factors and the efficacy of preventive interventions for a personalized CAD risk reduction.
Mn-Co spinel coatings on Crofer 22 APU by electrophoretic deposition: Up scaling, performance in SOFC stack at 850 °C and compositional modifications
- A Sabato
- E Zanchi
- Sebastian Molin
- Grzegorz Cempura
- H. Javed
- K. Herbrig
- C. Walter
- A Boccaccini
- Federico Smeacetto
2021 JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
Ceramic coatings for metallic interconnects play a key role in limiting corrosion and chromium evaporation in solid oxide cells. This study presents the upscaling of the electrophoretic deposition (EPD) technique to process Mn-Co spinels on real-dimension Crofer 22 APU interconnects and the test in a SOFC stack. Area specific resistance of long-term test conducted for 5000 h at 850 °C demonstrated that two-steps sintering has a significant influence on the coating performance; an area specific resistance degradation rate of 0.5 mΩ cm2 kh−1 is recorded. Stack test, operated in fuel cell mode at 850 °C for 3000 h under application of 227 mA/cm², including 5 thermal cycles, demonstrated the effectiveness of the electrophoretically deposited Mn-Co spinel in limiting the oxide scale growth on the Crofer 22 APU. An advanced post mortem investigation showed the effectiveness of the EPD ceramic coating, even when considering different and complex surfaces of the Crofer 22 APU.
Mobile Gas Chromatographs Coupled with Mass and Ion Mobility Spectrometers and their Applications
- Zygfryd Witkiewicz
- Waldemar Wardencki
2021 Pełny tekst Ecological Chemistry and Engineering S - Chemia i Inżynieria Ekologiczna S
The articles describes the developments un combining of mass and ion mobility spectrometers (MS, IMS0 with miniature gas chromatographs (GC). The examples of applications of miniaturised GC-MS and GC-IMS devices are presented.
MobileNet family tailored for Raspberry Pi
- Wojciech Glegoła
- Aleksandra Karpus
- Adam Przybyłek
2021 Pełny tekst Procedia Computer Science
With the advances in systems-on-a-chip technologies, there is a growing demand to deploy intelligent vision systems on low-cost microcomputers. To address this challenge, much of the recent research has focused on reducing the model size and computational complexity of contemporary convolutional neural networks (CNNs). The state-of-the-art lightweight CNN is MobileNetV3. However, it was designed to achieve a good trade-off between accuracy and latency on a single large core of a Google Pixel 1 smartphone. Accordingly, MobileNetV3 is not optimized for platforms with different hardware characteristics and its predecessors may perform better for a given target platform. The aim of this paper is twofold: 1) to analyze the performance of different compact CNNs on Raspberry Pi 4; 2) to manually adapted the most promising models to better utilize the Raspberry Pi 4 hardware. After exploring a number of modifications, we present a new CNN architecture, namely MobileNetV3-Small-Pi, which is 36% faster and slightly more accurate on ImageNet classification compared to the baseline MobileNetV3-Small.
Moda jako wartość konsumencka - eksplikacja zagadnienia
- Anna Dembicka
2021 Pełny tekst Problemy Jakości
Cel: Celem artykułu jest przedstawienie problematyki mody jako propozycji wartości dla klienta. Realizacja niniejszego celu wymagała uszczegółowionej eksplikacji zjawiska mody. W publikacji zdefiniowaniu poddano mechanizm działania mody, istotę trendu mody, jak również omówiono główne perspektywy analizy mody oraz aktualne nurty badań nad modą. Projekt badania/metodyka badawcza/koncepcja: W pracy wykorzystano metodę krytycznej analizy literatury przedmiotu, mającej na celu identyfikację istotnych dla tematu zagadnień, metodę syntezy oraz wnioskowania logicznego i na ich podstawie podjęto próbę konsolidacji dystynktywnej, statusowej i ekspresywnej roli mody, stanowiącej wartość dla klienta. Interdyscyplinarność zjawiska mody wpłynęła na charakter doboru literatury. Artykuł ma charakter przeglądowy. Wyniki/wnioski: Poznanie psychologicznych, socjologicznych i ekonomicznych źródeł mody oraz motywów wpływających na uleganie jej mechanizmowi umożliwia pełniejsze zrozumienie oczekiwań nabywcy towarów i usług poddawanych odziaływaniu trendów mody i tworzenie konkurencyjnych ofert sprzedażowych. Ograniczenia: Ujmowanie mody jako wartości nabywczej wymaga bardziej pogłębionych analiz, głównie ze względu na wielokontekstowość zjawiska mody. Kierunkiem przyszłych badań autorki będzie ujawnienie zależności pomiędzy kompatybilną triadą wartości dla klienta w przemyśle jachtowym: modą, zabawą i estetyką. Zastosowanie praktyczne: Niniejsze opracowanie stanowić może swoiste kompendium analiz wykorzystywanych w strategiach marketingu zróżnicowanego oferentów dóbr luksusowych. Oryginalność/wartość poznawcza: Artykuł opisuje zjawisko mody z perspektywy zachowań konsumenckich, ujawniając równocześnie uniwersalne spektrum jej charakterystyki. Zdaniem autorki weryfikacja znaczenia mody, w zróżnicowanych pod względem oferty sprzedażowej sektorach, sprzyja dywersyfikacji i porządkowaniu wiedzy na jej temat.