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Search results for: TECHNOECONOMIC STUDY
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Experimental study and numerical optimization of tensegrity domes – A case study
PublicationThe paper deals with the design, experimental analysis and numerical optimization of tensegrity dome models. Two structures are analyzed – a Geiger system dome (preliminary dome), with PVC-U bars and PA6/PP/PET tendons and a Fuller system dome (target dome), with wooden bars and steel cables as tendons. All used materials are experimentally tested in terms of Young's modulus and yield stress values, the compressed bars are also...
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HBM4EU Chromates Study: Urinary Metabolomics Study of Workers Exposed to Hexavalent Chromium
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Physiological parameters for Prognosis in Abdominal Sepsis (PIPAS) Study: a WSES observational study
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The Implications of Filial Piety in Study Engagement and Study Satisfaction: A Polish-Vietnamese Comparison
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An experimental study on polymer mass
PublicationA new method of repairing damaged structures by filling the cracks with specially prepared polymer mass has been recently proposed. The technique is mainly dedicated to historical objects where minimum intervention is permitted. The flexible joint bonds the disrupted elements and ensures further safe exploitation of a damaged structure. The aim of the present paper is to show the results of an experimental study on polymer mass...
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Tamar river monitoring study
PublicationPrzeprowadzono monitoring wód powierzchniowych rzeki Tamar. Próbki wód pobierano podczas dwóch kampanii. Opracowano metodyki umożliwiające oznaczenie wybranych farmaceutyków w pobranych próbkach.
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Experimental Study of Silent Sonar
PublicationStealth is a frequent requirement in military applications and involves the use of devices whose signals are difficult to intercept or identify by the enemy. The silent sonar concept was studied and developed at the Department of Marine Electronic Systems of the Gdansk University of Technology. The work included a detailed theoretical analysis, computer simulations and some experimental research. The results of the theoretical...
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Fabrication and Study of BiNbO4 Ceramics
PublicationAim of the present research was to fabricate and study crystalline structure as well as dielectric properties of BiNbO4 ceramics. In the present study BiNbO4 ceramics was fabricated by solid state reaction from the mixture of simple oxides viz. Bi2O3, and Nb2O5. Stoichiometric mixture of the powders was thermally analyzed so parameters of the thermal treatment were determined. The EDS measurements proved conservation of the chemical...
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Comparative Study of Iranian Nomadic Housing
PublicationThe purpose of this paper is to present the typical domestic space and to describe and analyze a particular temporary architecture (nomadic house) in order to perceive the exceptional nomadic culture and the architecture associated with it. The research investigates some of the nomadic tribes of Iran and their living space: including the nomadic home (Black Tent) and, uses those findings to analyze their unique culture. The research...
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A Study of Transport Behaviour of Academic Communities
PublicationAn important challenge to achieving sustainable university campuses is ensuring that the academic community makes sustainable transport choices. The objective of this study was to investigate the daily commuting patterns, identify the potential for change, and determine the factors and criteria affecting the transport decisions of academic communities of two universities located in Gdansk, Poland. This paper summarizes the results...
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Playing the Sprint Retrospective: A Replication Study
PublicationThe Sprint Retrospective is a vehicle for continuous process improvement. Even though it is a well established agile practice, running effective retrospective meetings is challenging. There have been a lot of identified problems that commonly occur during these meetings. To address them, Przybyłek & Kotecka [20] successfully revitalized retrospective meetings by adopting collaborative games, which represent a powerful tool in improving...
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Study on Methods to Control Interstory Deflections
PublicationOne of the possibilities to prevent building pounding between two adjacent structures is to consider appropriate in-between separation distance. Another approach might be focused on controlling the relative displacements during seismic excitations. Although the majority of building codes around the world recommend the use of some equations of various distances between structures to avoid pounding; a lot of reports after earthquakes...
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Ring thruster - a preliminary optimisation study
PublicationThe ring thruster is a new type of propeller, for which there is no experimental data to verify analytical design calculations. A significant feature of the ring thruster is the absence of a shaft. Propeller blades are mounted to the ring rotating inside the housing, which has the shape of a nozzle. For this reason the ring thruster is closest, with respect to both the construction and principle of operation, to the Kort nozzle...
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Methodology of the Morphometry Study on Baltic Herring
PublicationAcoustic techniques are used in the estimation of the abundance of Baltic herring. Investigations of the relationship between the Baltic herring individual target strength TS and the total fish length L, significant in the acoustic assessment, demonstrated its de-pendence on the study area location. It motivated the detailed analysis of the relationship between herring from the southern Baltic ICES Subdivisions 24, 25, and 26,...
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Digital Fashion Competences: A Longitudinal Study
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Inverse Potassium Hydride: A Theoretical Study
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Inverse Sodium Hydride: A Theoretical Study
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Indoor Air Quality: A Bibliometric Study
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Study of Noise Propagation for Small Vessels
PublicationThe paper presents the results of the noise propagation analysis in ship structures tested in a number of AHTS (Anchor Handling Tug Supply) vessels. Statistical Energy Analysis (SEA) based on numerical model developed specially for the purpose of this numerical investigation were conducted. This numerical model enabled the analysis of both the structural elements and the acoustic spaces. For the detailed studies 47 points fixed...
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Study of a plate modelling a dock gate
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A study of modern materials for arc spraying
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A comparative study of the performance of passive samplers
PublicationPodstawowym celem podjętych badań było porównanie pracy dozymetrów pasywnych wykorzystywanych na etapie izolacji i wzbogacania lotnych związków organicznych z powietrza atmosferycznego na terenie aglomeracji Trójmiejskiej. Jako próbniki do pobierania próbek analitów zastosowano komercyjne dozymetry pasywne typu dyfuzyjnego (Radiello i Orsa 5) oraz dozymetry typu permeacyjnego własnej konstrukcji wyposażone w półprzepuszczalną membranę...
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Study of rotational separators operation and design
PublicationOmówiono zasadę działania i podstawy projektowania separatorów cyrkulacyjnych, wyrózniając separatory wirowe oraz cyklony.Przeanalizowano bilans sił, działających na cząstkę usuwanej zawiesiny. Na przykładzie obliczeniowym wykazano wady istniejących metod projektowych. Przedstawiono ogólną koncepcję nowej metody.
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Problems of Railway Noise-A Case Study
PublicationUnder Directive 2002/49/EC relating to the assessment and management of environmental noise, all European countries are obliged to model their environmental noise levels in heavily populated areas. Some countries have their own national method, to predict noise but most have not created one yet. The recommendation for countries that do not have their own model is to use an interim method. The Dutch SRM II scheme is suggested for...
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Experimental study on plate modal parameters
PublicationTest doświadczalny jest częścią systemu diagnostycznego. Autorzy badają wpływ dodatkowej masy na parametry modalne wolno popartej stalowej płytyi. Artykół przedstawia technikę wyznaczania parametrów modalnych dla systemów monitorowania konstrukcji.The experimental test introduced in the paper is the part of the diagnostic system. The authors investigate the influence of the additional mass on modal parameters of simply supported...
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Magnetic study of Fe3O4/Ag nanoparticles
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Magnetic study of nanocrystalline 0.95MnO/0.05ZnO
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Study on the concentration of acids by membrane distillation
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Numerical and Experimental Study of Propeller Ventilation
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Numerical and Experimental Study of Propeller Ventilation
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Usprawnienie procesu produkcyjnego - case study
PublicationCelem artykułu jest przedstawienie koncepcji usprawnienia procesu obróbki wstępnej oraz produkcji dzemu poprzez zakup i wprowadzenie odszypułczarki. Nowa maszyna pozwoli na likwidację wąskiego gardła w produckji, dzięki czemu wzrośnie dzienna wielkość produkcji.
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Problems of Railway Noise—A Case Study
PublicationUnder Directive 2002/49/EC relating to the assessment and management of environmental noise, all European countries are obliged to model their environmental noise levels in heavily populated areas. Some countries have their own national method, to predict noise but most have not created one yet. The recommendation for countries that do not have their own model is to use an interim method....
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Smart sustainable cities : Reconnaissance Study
PublicationThe global urban population is expected to grow by 63 percent between 2014 and 2050 – compared to an overall global population growth of 32 percent during the same period. Megacities with over 20-million inhabitants will see the fastest increase in population – and at least 13 new megacities are expected by 2030, in addition to the 28 existing today. The fastest growing urban centres contain around one-million inhabitants, and...
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237Np Mössbauer effect study on NpFeAsO
PublicationWe report 237Np Mössbauer measurements on NpFeAsO. The Np atoms were found to occupy only one crystallographic site. The value of the isomer shift (δ ∼ 9.1 mm s−1 versus NpAl2) indicates a 5f4 electronic configuration (Np3+ ions). The magnetic ordering of the Np sublattice below 60 K is established and the saturated ordered magnetic moment is determined to be 1.73μB at 3.6 K. The unique set of hyperfine parameters exclude a modulated...
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The study of acoustic climate of the Southern Baltic
PublicationThis 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...
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COMPARATIVE STUDY OF TRADITIONAL AND VIRTUAL TEAMS
PublicationThe paper presents two kinds of cooperating teams: traditional and virtual, and proposes a new measure of the team virtuality level. Some representative teamwork characteristics, such as team member competencies, team diversity, leadership, and team decision-making are analyzed and compared depending on the degree of virtuality. Moreover, the team climate as one of the team performance measures is also analyzed and compared in...
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The role of analytical chemistry in the study of the Anthropocene
PublicationThe 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....
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Architectural Symbols of a City – Case Study
PublicationThe identity of a city is understood as a collection of individual features, which give the city its individual character and distinguish it from other places; it undoubtedly constitutes a cultural value, which should be cherished. In the case of Sopot – a spa located on the Bay of Gdansk, the mosaic of its geographical location, landscape values, urban layout and historic architecture has created a unique image of a seaside resort....
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Multicentre, Prospective Observational Study of Pegfilgrastim Primary Prophylaxis in Patients at High Risk of Febrile Neutropenia in Poland: PROFIL Study
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Supporting study tours in the teaching of architectural heritage
PublicationStudy tours are a highly effective way to acquire knowledge. They improve students’ understanding of issues that otherwise may seem partly abstract to them. Presented in this article is the unique way in Poland in which support is given to the teaching of architectural heritage. It has been carried out continuously for almost 50 years in the Faculty of Architecture at Gdańsk University of Technology (FA-UT), Gdańsk, Poland, in...
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Study on Strategy in University Laboratory Class Teaching
PublicationLaboratory teaching is a critical way to ensure the effective input of techniques in engineering learning. Laboratory teaching not only contributes to improving course quality but also helps enrich comprehensive engineering application ability. However, there are some typical problems in current university laboratory teaching, such as rigid and isolated course design, outdated contents and materials, and not encouraging innovation...
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The study of Arduino Uno feasibility for DAQ purposes
PublicationUsing microcontroller systems becomes a routine in various measurement and control tasks. Their wide availability together with a huge potential of extending their functionality by additional modules allows developing advanced measuring and monitoring systems by non-specialists. However, using popular example codes often leads the user to pass over or not to be aware of the limitations of the system and drawing too far-reaching...
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Respiratory signal of bathing person - preliminary study
PublicationThe scope of this paper is analysis of applicability of modern biomedical acquisition system installed in bathtub towards reception of respiratory signals of bathing person. An analysis of the possibility of such measurement is shown as well as preliminary results.
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Labour resources in Kazakhstan and Uzbekistan - a comparative study
PublicationThe aim of the paper is to show the transformation and comparison of labour resources in Kazakhstan and Uzbekistan using the following methods: deductive data analysis, observation of changes in the structure of resources based on publicly available macroeconomic data. During the two decades of the 21st century, both countries experienced population growth which translated into an increased number of persons of working age. In...
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Study on polymer modified road asphalt mixture
PublicationThe formulation of ternary asphalt-additives blend composed of crumb rubber : low-density polyethylene (CR : LDPE) and crumb rubber : textile fiber (CR : TF) couples, and quaternary asphalt additives-blend composed of (CR : LDPE : TF) triplets on the virgin asphalt to optimize the asphalt basic and rheological properties and to use the extrusion process of two or three additives to obtain composite materials of them, as well as...
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Usability of mobile applications: a systematic literature study
PublicationSince the release of the first mobile devices, the usability of on-board applications has been the concern not only of software vendors but hardware manufacturers as well. The academia community later willingly joined the discussion on usability in terms of theory and empirical measurement, having experience and knowledge in desktop settings. At first sight, such a background should guarantee a solid foundation to conduct research...
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IR and Raman study of oxy-nitride glasses
PublicationVarious silicate and phosphate glasses with and without nitride addition were structurally characterized by IR and Raman spectroscopy. The studied glass systems include Na-Ca-P-O-N (1), AE-Si-O-N (with AE=Mg, Ca, Sr, Ba)(2), La-Si-O-N (3) as well as the Na-(Li)-Be-O-(N) (4,5) system. The samples were prepared by different techniques such as remelting of pre-prepared glass samples of the oxide systems with Mg and/or Si3N4 powders...
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A Preliminary Study and Analysis of Tidal Stream Generators
PublicationFor a sustainable future, tidal energy can play a vital role. Tidal energy relies on the gravitational pull of the Moon and the Sun along with the centrifugal forces created by the Earth. Tidal barrage uses the potential energy from the tide and has been very successful in electricity production. With the help of a turbine, kinetic energy can also be harnessed from tidal currents to generate electricity. However, it is not economically...
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Heterogeneous soil behavior. Mechanical study of mixtures
PublicationW pracy opisano właściwości gruntu niejednorodnego w postaci mieszaniny budowanej ze żwiru i piasku w różnych proporcjach. Mieszanina ma właściwości typowe ośrodków ziarnistych. Badania przeprowadzono w aparacie trójosiowego ściskania. Jako wynik uzyskano, że wraz ze wzrostem procentowej zawartości żwiru rośnie kąt tarcia wewnętrznego mieszaniny i jej zagęszczenie oraz wartość jej wytrzymałości na ścinanie.
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Esplanade Riel footbridge, Winnipeg, Canada - a study
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