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Search results for: MRAS
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Dorota Garwolińska dr inż.
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Chemical Composition and Structure of Foods
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Detection of butter adulteration with water using differential scanning calorimetry
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Melting and crystallization DSC profiles of milk fat depending on selected factors
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DSC coupled with PCA as a tool for butter authenticity assessment
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EFFECT OF MILK FAT COOLING RATE ON CRYSTALLIZATION PROCESS OF TRIACYLGLYCEROLS THEREIN
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Rapid quantitative determination of butter adulteration with palm oil using the DSC technique
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Symulacje habitatów marsjańskich.
PublicationW pierwszych misjach załogowych na Marsa ludzie będą mieszkać w prostych metalowych modułach. Ich gabaryty i masa będą niewielkie ze względu na ograniczone możliwości rakiet wynoszących. W programie MARS (Mars Analogue Research Station) zorganizowanym przez stowarzyszenie Mars Society prowadzi się symulacje życia i pracy przyszłych marsonautów. Pomaga to m. in. w ozptymalizowaniu układu funkcjonalnego w module. Trwają poszukiwania...
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Post mortem development of meat quality as related to changes in cytoskeletal proteins of chicken muscles
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Development of fragility curves in adjacent steel moment-resisting frames considering pounding effects through improved wavelet-based refined damage-sensitive feature
PublicationFragility curves present useful information related to earthquake-induced probability assessment of steel moment-resisting frames (MRFs) and determine the probability of the damage exceedance at different floor levels of MRFs. The review of the literature shows that most of the previous studies dealing with the fragility curves were based on conventional measures, such as spectral acceleration at the first mode period, peak...
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Modeling a Traffic Remapping Attack Game in a Multi-hop Ad Hoc Network
PublicationIn multi-hop ad hoc networks, selfish nodes may unduly acquire high quality of service (QoS) by assigning higher priority to source packets and lower priority to transit packets. Such traffic remapping attacks (TRAs) are cheap to launch, impossible to prevent, hard to detect, and harmful to non-selfish nodes. While studied mostly in single-hop wireless network settings, TRAs have resisted analysis in multi-hop settings. In this paper...
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Discouraging Traffic Remapping Attacks in Local Ad Hoc Networks
PublicationQuality of Service (QoS) is usually provided in ad hoc networks using a class-based approach which, without dedicated security measures in place, paves the way to various abuses by selfish stations. Such actions include traffic remapping attacks (TRAs), which consist in claiming a higher traffic priority, i.e., false designation of the intrinsic traffic class so that it can be mapped onto a higher-priority class. In practice, TRAs...
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Low temperature CVD growth of graphene nano-flakes directly on high K dielectrics
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Process Control Challenges and Solutions: TEOS, W, and CU CMP
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Effect of manganese on the thermostability and reducibility of cobalt nanomaterials.
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Microstructural evolution of 6061 aluminium alloy subjected to static and dynamic compression at low temperature
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Terahertz Detectors Based on Silicon Technology Field Effect Transistors
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Poly-L-Lysine-functionalized fluorescent diamond particles: pH triggered fluorescence enhancement via surface charge modulation
PublicationRecently, the interest in applying fluorescent diamond particles (FDPs) containing nitrogen-vacancy (NV) centers for enhancing the mechanical and chemical properties of some materials, biological imaging, and sensing has been expanding rapidly. The unique properties of NV centers such as intensive, time-stable fluorescence, and an electron spin, which exhibits long coherence time and may be manipulated using external stimuli, such...
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Ryszard Jasiński dr hab. inż.
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Estimation of the Ultimate Strength of FRP Strips-to-Masonry Substrates Bond
PublicationFiber-Reinforced Polymers (FRP) were developed as a new method over the past decades due to their many beneficial mechanical properties, and they are commonly applied to strengthen masonry structures. In this paper, the Artificial Neural Network (ANN), K-fold Cross-Validation (KFCV) technique, Multivariate Adaptive Regression Spline (MARS) method, and M5 Model Tree (M5MT) method were utilized to predict the ultimate strength of...
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Determination of tributylotin (TBT) in marine sediment using pressurised liquid extraction-gas chromatography-isotope dilution mass spectrometry (PLE-GC-IDMS) with a hexane-tropolone mixture
PublicationOpracowano metodę oznaczania zawartości tributylocyny w próbkach osadu morskiego. Na etapie izolacji zastosowano technikę przyspieszonej ekstrakcji za pomocą roztworu tropolonu w heksanie.Na etapie oznaczeń końcowych wykorzystano technikę chromatografii gazowej, stosując metodę spektrometrii mas rozcieńczenia izotopowego. Wyznaczono parametry walidacyjne opracowanej metody: granicę wykrywalności, precyzję, poprawność i niepewność.
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METODA REDUKCJI PRAWDOPODOBIEŃSTWA BLOKOWANIA ŻĄDAŃ W SIECI SZKIELETOWEJ OPARTA O MECHANIZM PROGNOZOWANIA KONFLIKTÓW W ZASOBACH PRZEPUSTOWOŚCI
PublicationMetody doboru tras ukierunkowane na równoważenie obciążenia sieci (ang: Load-Balancing Routing; LBR) redukują prawdopodobieństwo blokowania żądań na instalację tras i tym samym podnoszą potencjalny przepływ transmisji, przy niezmiennej przepustowości sieci. Niniejsza praca prezentuje nową metodę LBR która prowadzi do istotnej redukcji prawdopodobieństwa blokowania (dla niektórych scenariuszy ponad 3.8 razy).
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Modernization of tram lines with the use of railway design standards
PublicationThe article presents the main differences between the process of upgrading railway and tram routes. Geometrical layout designing is an issue of the interest. Railway designing rules that may be helpful in the design of the modernization are specified.
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Enhancing seismic performance of steel buildings having semi-rigid connection with infill masonry walls considering soil type effects
PublicationUnpreventable constructional defects are the main issues in the case of steel Moment-Resisting Frames (MRFs) that mostly occur in the rigidities of beam-to-column connections. The present article aims to investigate the effects of different rigidities of structures and to propose Infill Masonry Walls (IMWs) as retrofitting strategy for the steel damaged buildings. A fault or failure to meet a certain consideration of the soil type...
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Discrimination of Selected Cold-Pressed and Refined Oils by Untargeted Profiling of Phase Transition Curves of Differential Scanning Calorimetry
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Characteristics and structure of starch isolated from triticale
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Algorithms of fast service restoration in survivable multilayer networks
PublicationGłównym celem rozprawy jest zaproponowanie nowych modeli/algorytmów doboru tras zapewniających przeżywalność usług w sieciach IP-MPLS/WDM poprzez zastosowanie wyznaczonych zawczasu ścieżek zabezpieczających. Zakres pracy obejmuje: dokonanie przeglądu mechanizmów transmisji informacji w warstwowych sieciach teleinformatycznych IP-MPLS/WDM; szczegółowy opis sposobów zapewniania przeżywalności usług; zaproponowanie nowych metod doboru...
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Aleksandra Dudkowska doktor
PeopleDoctor of physical sciences, assistant professor at the Institute of Oceanography at the University of Gdańsk. Her interests focus on Sea Dynamics, in particular on the numerical modeling of water masses and sediments movement in the sea.
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A Novel Reliable Routing Scheme for VANETs
PublicationSieci bezprzewodowej transmisji informacji bazujące na rodzinie standardów 802.11, zastosowane w przypadku komunikacji między pojazdami (VANET), mogą istotnie przyczynić się do poprawy bezpieczeństwa ruchu drogowego. Z uwagi na wysoki stopień mobilności pojazdów, dobór tras w sieciach VANET jest problemem trudnym, zwłaszcza w przypadku transmisji wieloskokowej. Rozwiązania dostępne w literaturze ukierunkowane na poprawę dostępności...
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Anonymity Architecture for Mobile Agent Systems
PublicationThe paper presents a new security architecture for MAS, which supports anonymity of agent owners. The architecture is composed of two main elements: Module I: Untraceability Protocol Infrastructure and Module II: Additional Untraceability Support. Module I is based on the recently proposed untraceability protocol for MAS and it forms the core of the anonymity architecture, which can be supported by the ele- ments of the second...
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Water mobility and thermal properties of smoked soft cheese
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Evaluation of pounding effects between reinforced concrete frames subjected to far-field earthquakes in terms of damage index
PublicationIn this paper, three different damage indexes were used to detect nonlinear damages in two adjacent Reinforced Concrete (RC) structures considering pounding effects. 2-, 4- and 8-story benchmark RC Moment Resisting Frames (MRFs) were selected for this purpose with 60%, 75%, and 100% of minimum separation distance and also without any in-between separation gap. These structures were analyzed using the incremental dynamic analysis...
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Mitigating Traffic Remapping Attacks in Autonomous Multi-hop Wireless Networks
PublicationMultihop wireless networks with autonomous nodes are susceptible to selfish traffic remapping attacks (TRAs). Nodes launching TRAs leverage the underlying channel access function to receive an unduly high Quality of Service (QoS) for packet flows traversing source-to-destination routes. TRAs are easy to execute, impossible to prevent, difficult to detect, and harmful to the QoS of honest nodes. Recognizing the need for providing...
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Bohdan Zadroga prof. dr hab. inż.
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Paradigm of deep pectoral myopathy in broiler chickens
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A framework estimating the minimum sample size and margin of error for maritime quantitative risk analysis
PublicationThe average accident frequency is essential for quantitative risk analysis and is conventionally estimated from accident statistics. This paper has systematically synthesised the knowledge on statistical errors and offered the missing instructions, a framework, for determining the minimum sample size and the margin of error (MOE) when calculating the average accident frequency from an accident database at hand. We have applied...
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Epidermal thickening, unspecified - Male, 67 - Tissue image [1206063001762561]
Open Research DataThis is the histopathological image of OTHER AND UNSPECIFIED PARTS OF TONGUE tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.
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Stability of texture, meltability and water mobility model of pizza-style cheeses from goat's milk
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The effect of deep pectoral myopathy on the properties of broiler chicken muscles characterised by selected instrumental techniques
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Nowe drogi w krajobrazie podmiejskim - różne aspekty przestrzeni
PublicationW artykule zaprezentowano zagrożenia przestrzeni podmiejskiej, powodowane rozwojem systemu drogowego. Omówiono aspekty kulturowe, przyrodnicze, krajobrazowe, funkcjonalno-przestrzenne, ekonomiczne i użytkowe, związane z realizacją i funkcjonowaniem tras drogowych na przykładzie obwodnic i dróg planowanych w rejonie aglomeracji gdańskiej. Na tym tle ukazano procedurę ocen oddziaływania na środowisko (OOŚ), jako narzędzia łagodzenia...
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Location of ship rolling axis.
PublicationPodano definicję osi kołysań statku i metodę określania jej położenia. Położenie osi zależy nie tylko od rozkładu mas statku ale równiez od tzw. ''mas towarzyszących'', które są reprezentacją sił hydrodynamicznych działających na statek w czasie kołysania. Podano proste formuły pozwalajace obliczyć poprawne położenie osi kołysań statku.
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Andrzej Chybicki dr inż.
PeopleA graduate of the Faculty of Electronics, Telecommunications and Informatics at the Gdańsk University of Technology, PhD in technical sciences in the field of IT specializing in distributed data processing in IT . Aimed at exploiting the achievements and knowledge in the field of industrial research. He cooperated with a number of companies including OpeGieka Elbląg, Reson Inc., Powel Sp. z o. o., Wasat, Better Solutions, the European...
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Monitoring the Uniformity of Fish Feeding Based on Image Feature Analysis
PublicationThe main purpose of the conducted research is the development and experimental verification of the methods for detection of fish feeding as well as checking its uniformity in the recirculating aquaculture systems (RAS) using machine vision. A particular emphasis has been set on the methods useful for rainbow trout farming. Obtained results, based on the analysis of individual video...
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Self-Organization in Multi-Agent Systems Based on Examples of Modeling Economic Relationships between Agents
PublicationThe goal of the research was to observe and analyze self-organization patterns in Multi-Agent Systems (MAS) by modeling basic economic relationships between agents forming a closed loop of relations necessary for their survival. The paper describes a worked-out MAS including an example of a production cycle and used economic rules. A special focus is put on behavior rules and decision systems of an individual agent such as: product...
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A new method for searching optimal path on a raster plane including cost of direction changes
PublicationArtykuł przedstawia nowy algorytm znajdowania optymalnych tras na siatkach rastrowych. Szczegółowo opisano zastosowane struktury danych, dzięki który algorytm ma liniową złoŻoność obliczeniową. Zamieszczono również propozycje możliwych zastosowań.
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Phase Transitions in Pores: Experimental and Simulation Studies of Melting and Freezing
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Machine learning-based prediction of seismic limit-state capacity of steel moment-resisting frames considering soil-structure interaction
PublicationRegarding the unpredictable and complex nature of seismic excitations, there is a need for vulnerability assessment of newly constructed or existing structures. Predicting the seismic limit-state capacity of steel Moment-Resisting Frames (MRFs) can help designers to have a preliminary estimation and improve their views about the seismic performance of the designed structure. This study improved data-driven decision techniques in...
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Zastosowanie technik instrumentalnych i sensorycznych do oceny jakości powietrza atmosferycznego z uwzględnieniem negatywnego oddziaływania na środowisko związków uciążliwych zapachowo powstałych z osadów ściekowych
PublicationW ramach realizowanej w trakcie studiów doktoranckich tematyki badawczej, podjęto próbę scharakteryzowania właściwości zapachowych związków organicznych uwalnianych z osadów ściekowych. W tym celu wykorzystano rozwiązania aparaturowe wykorzystujące spektrometrię mas - techniki: dwuwymiarowej chromatografii gazowej sprzężonej ze spektrometrią mas, chromatografii gazowej sprzężonej z tandemową spektrometrią mas oraz spektrometrii...
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Influence of Seeds’ Age and Clarification of Cold-Pressed Raspberry (Rubus idaeus L.) Oil on the DSC Oxidative Stability and Phase Transition Profiles
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Differential scanning calorimetry as a tool to assess the oxidation state of cold-pressed oils during shelf-life
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