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Wyniki wyszukiwania dla: DURIAN, MANGO, GRUSZKA ADWOKACKA
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Site environment type – The main factor of urban road dust toxicity?
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Recycling Gdańsk´s an urban spaces: the proceses supporting the identity of the city
PublikacjaPrzeobrażenia epoki postindustrialnej przybliżają wyobrażenie miasta inten- sywnego i zróżnicowanego. Istnieje potrzeba dostosowania istniejącej struk- tury miasta na nowych oczekiwań, poprzez uwypuklenie narracji już zapisanych w strukturze miasta, między innymi w nie docenianych obecnie układach wod- nych. Wskazano także na potencjał przetwarzania przestrzeni miasta związany z prawidłowym skonfigurowaniem przestrzennym samego...
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Empirical formulas for determination of the propagation loss in urban radio access links
PublikacjaOpisano wielowariantowy model empiryczny tłumienia propagacyjnego przeznaczonego do analizowaniai projektowania radiowych systemów dostępwych w warunkach zabudowy miejskiej, opracowanego na podstawie obszernych pomiarów tego tłumienia w rzeczywistych warunkach takiej zabudowy. Scharakteryzowano przydatność użytkową tego modelu.
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Greencoin - educational information system for eco-inclusion and empowering urban adaptability.
PublikacjaSARS-CoV19 pandemic exposed a broad spectrum of challenges for modern cities, societies and the environment at large. The post-Covid transformation requires new social and ecological solutions, adjusted to modern challenges, but also equipped with technological advances that allow for digital inclusion and sustainable urban development to benefit the local economy and society. Many information systems are designed to enable...
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Greencoin information system empowering urban adaptability and eco living choices.
PublikacjaThere are many gamification projects focused on mitigating climate changes which has been tested or implemented worldwide. However, the gap which remains is the limited number of solutions dedicated for central European countries where the urban polices in terms of climate vulnerability are bounded. On the other hand, cities, when implementing climate-oriented policies, are focused on urban resilience, while the opportunities...
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Pollutant deposition via dew in urban and rural environment, Cracow, Poland
PublikacjaThis study is a comparative analysis of dew in rural and urban environment. Dew samples were collected between May and October, 2009 in two reference stations in southern Poland: Cracow and Gaik-Brzezowa. The investigation included comparison of volume and chemistry of the collected samples. Due to its formation mechanisms, dew is a good indicator of air pollution. Following parameters were analyzed in 159 collected samples: pH,...
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Implementation of daylight design strategies in urban planning - barriers to application in Poland
PublikacjaThis paper reflects on studies done in the area of daylight design methods with regard to principles that can be applied in architecture and urban planning strategies. The paper addresses barriers to the application of new daylight design methods in urban planning, and in particular discusses current Polish building regulations in the context of daylight design. The results of the pilot study carried out among 82 participants show...
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Power converter interface for urban DC traction substations - solutions and functionality.
PublikacjaThis paper focuses on extending an urban DC traction substation functionality by means of an additional power converter interface (PCI). In particular, by enabling bidirectional energy exchange between LV DC traction grid, AC grid and V2G chargers. Among other things, the presented material compares general attributes of the most promising DC/DC converters that can be used in a PCI, meet the requirements of galvanic isolation and...
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User-oriented GIS tools in higher education of urban design and planning
PublikacjaGeographic information systems (GIS) have emerged as indispensable tools for decision-making, planning and problem-solving tasks across various domains in today’s evolving world. However, there exists a pressing need to augment the utilisation of GIS tools in higher education of urban design and planning to foster a user-oriented approach. This article explores the imperative of integrating GIS tools more comprehensively into higher...
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Quality of roof runoff waters from an urban region (Gdańsk, Poland)
PublikacjaW pracy przedstawiono wyniki badań analitycznych próbek wód spływnych z powierzchni dachów budynków z terenu miasta Gdańska. W próbkach oznaczano stężenia jonów (Na+, K+, NH4+, Mg2+, Ca2+, F-, Cl-, NO2-, PO4-, SO4-) oraz związków organicznych (pestycydy, węglowodory ropopochodne i lotne związki chlorowcoorganiczne). Dodatkowo mierzono pH oraz toksyczność próbek. Próbki zbierano przez okres 6 miesięcy w okresach po zakończeniu opadów....
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Informal practices in urban planning and governance. Examples from Polish cities
PublikacjaPlanning has a formal, legally defined component and an informal component developed in response to deficiencies in the planning system. Informal practices can contribute to the development of tools that would improve urban governance, especially in areas related to space. This article presents an overview of informal practices that have taken place in Polish cities and towns in recent years and offers an assessment of their impact...
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Horizontally-split-drain MAGFET - a highly sensitive magnetic field sensor
PublikacjaWe propose a novel magnetic field sensitive semiconductor device, viz., Horizontally-Split-Drain Magnetic-Field Sensitive Field-Effect Transistor (HSDMAGFET) which can be used to measure or detect steady or variable magnetic fields. Operating principle of the transistor is based on one of the galvanomagnetic phenomena and a Gradual Channel Detachment Effect (GCDE) and is very similar to that of Popovic and Baltes's SDMAGFET. The...
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Representation of a built-up area in the numerical simulation of urban flash flooding
PublikacjaPrzedstawiono wyniki modelowania powodzi miejskiej przy pomocy dwuwymiarowych równań de Saint-Venanta. Równania rozwiązano metodą objętości skończonych. Zaprezentowano dwie techniki reprezentacji obszarów zabudowanych w numerycznej symulacji powodzi - bezpośrednie wykluczenie budynków z siatki numerycznej oraz zastąpienie grup budynków terenami o znacznie zwiększonej szortkości powierzchni. W celu oceny wykorzystanych metod wykonano...
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Urban Development Strategies in Times of Structural Changes - Lessons from Poland
PublikacjaPraca obejmuje skrótowa prezentację współczesnych procesów rozwoju i transformacji polskich miast ze szczególnym uwzględnieniem zmian wynikających z transformacji ustrojowej.
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Assessment of the sea buckthorn growing in urban conditions – the quality of berries and leaves
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Integrated model of development as a basis for decision support system for the urban planning
PublikacjaW artykule omówiono problemy budowy systemów informacji przestrzennej na potrzeby planowania rozwoju miast z wykorzystaniem technik GIS-u
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The Impact of Information and Communication Technology on the Rise of Urban Social Movements in Poland
PublikacjaThe chapter examines the relationship between the use of Information and Communications Technology (ITC) and the emergence of social movements focused on urban agenda in Poland. The aim is to investigate how and to what extent a growing body of smaller activist groups use opportunities provided by the ITC to achieve their political objectives. The research results indicate that Web-based media have helped to raise the profile...
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The Impact of Information and Communications Technology on the Rise of Urban Social Movements in Poland
PublikacjaThe chapter examines the relationship between the use of Information and Communications Technology (ITC) and the emergence of social movements focused on urban agenda in Poland. The aim is to investigate how and to what extent a growing body of smaller activist groups use opportunities provided by the ITC to achieve their political objectives. The research results indicate that Web-based media have helped to raise the profile of...
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Cross sections for electron scattering from furan molecules; measurements and calculations
PublikacjaZmierzono i policzono przekroje czynne (TCS) na rozproszenie elektronów na drobinach furanu (C4H4O). Całkowite przekroje czynne zmierzono metodą transmisyjną w zakresie energii 0.6 - 400 eV. Sprężysty i jonizacyjny przekrój czyny obliczono dla energii zderzenia do 4 keV; powyżej 70 eV suma obu przekrojów pozostaje w dobrej zgodności z mierzonymi wartościami TCS.
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The new generation of urban parks and health-promoting landscapes in eco-neighborhoods
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Successfull urban regeneration project: Gdansk-Letnica district case study
PublikacjaThe paper presents the process of urban regeneration of Gdansk Letnica district, a project that from a very short time perspective can be described as successful. The paper present a brief district's history as well as analysis of circumstances that may have influenced Gdansk authorities' decision of starting an urban regeneration project.
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New trends in a development of the contemporary lighting forms within the urban environment
PublikacjaThis paper presents selected issues on the design of urban lighting forms including street luminaires within the urban environment. The purpose of this paper is to show the evolution of urban lighting forms, in terms of their performance, character, and in the context of the progression of new lighting technologies. The authors discuss chosen aspects related to the development of lighting forms and the changing role of lighting...
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Exploring DAD and ADD Methods for Dealing with Urban Heat Island Effect
PublikacjaThe Urban Heat Island (UHI) effect in the context of climate change and temperature fluctuations is an increasing challenge for contemporary cities. Numerous activities focus on mitigation and adaptation to the UHI effect using both appropriately selected design strategies and technological solutions. However, not all of these technologies support the postulates of ecological and low-carbon cities. Their design, implementation,...
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Surpassing the Line: Urban-Oriented Strategies in the Development of Business Complexes in Poland
PublikacjaDevelopment trends regarding the business-related urban complexes seem to evolve from the “big-box” towards the more “multi-use” types of structures. Within it, the special role is reserved for places, which—due to economic, political, and geographical reasons—have not been previously considered as major business hubs. Only recently, places like cities in Central and Eastern Europe have become attractive locations for business...
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Evolution of Edges and Porosity of Urban Blue Spaces: A Case Study of Gdańsk
PublikacjaCurrent waterfront studies focus mainly on a land-based perspective, failing to include the water side. Water is, however, not just a resource for port and industrial purposes and an edge to the waterfront; it is also a feature of the waterfront and the complex relation between water and city. Thus, the article suggests that water-land edges need to be re-contextualised, taking into consideration also their shape, functionality,...
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Landscape as a Potential Key Concept in Urban Environmental Planning: The Case of Poland
PublikacjaRapid urban development increases the consumption of materials, energy, and water, resulting in an overproduction of waste and emissions. These cause many environmental threats, such as ozone layer depletion and rain acidification, leading to climate change. Therefore, the question arises on how to improve the effectiveness of tools that strengthen environmental protection. This discursive article presents an approach stressing...
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A city is not a tree: a multi-city study on street network and urban life
PublikacjaChristopher Alexander, a British-American scholar, differentiated an old (natural) city from a new (planned) one by structure. The former resembles a “semilattice”, or a complex system encompassing many interconnected sub-systems. The latter is shaped in a graph-theoretical “tree”, which lacks the structural complexity as its sub-systems are compartmentalized into a single hierarchy. This structural distinction explains why, or...
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Urban Lighting Research Transdisciplinary Framework—A Collaborative Process with Lighting Professionals
PublikacjaOver the past decades, lighting professionals have influenced the experience of the night by brightly illuminating streets, buildings, skylines, and landscapes 24/7. When this became the accepted norm, a dual perspective on night-time was shaped and the visual enjoyment of visitors after dusk was prioritized over natural nightscapes (nocturnal landscapes). During this time, researchers of artificial light at night (ALAN) observed...
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Smart platforms for collaborative urban design and peer-to-peer sharing of resources
Publikacja.
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Assessment of atmospheric inorganic pollution in the urban region of Gdańsk, Northern Poland
PublikacjaProjekt wykonano w przemysłowej części Gdańska w celu zidentyfikowania głównych źródeł zanieczyszczeń. Próbki suchego oraz żywego (w hodowli hydroponicznej) mchu eksponowano równolegle w celu określenia ich właściwości kumulacji w aspekcie badań biomonitoringowych. Analizę chemiczną składu próbek mchu wykonano dzięki zastosowaniu techniki aktywacji neutronowej i reaktorze badawczym w Delft (Holandia). Uzyskane wyniki wskazują,...
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Emulgatory acylopropylenoglikolowe otrzymywane w układach mikroemulsyjnych - synteza i właściwości
PublikacjaW pracy przedstawiono możliwości syntezy emulgatorów acylopropylenoglikolowych na drodze bezpośredniej estryfikacji glikolu propylenowego kwasami tłuszczowymi C12:0 - C18:0 przebiegającej w układzie mikroemulsyjnym w obecności surfaktantów: anionowego dodecylosiarczanu sodu i niejonowego polioksyetylenowanego glikolu etylenowego. Opisano wpływ rodzaju i stężenia surfaktantu, budowy kwasu tłuszczowego użytego w syntezie, temperatury...
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Hanna Pruszko mgr inż.
OsobyHanna Pruszko jest asystentem badawczo-dydaktycznym na Wydziale Inżynierii Mechanicznej i Okrętownictwa w Zakładzie Hydromechaniki i Hydroakustyki Instytutu Oceanotechniki i Okrętownictwa. Studia magisterskie na Wydziale Oceanotechniki i Okrętownictwa profil Statki Morskie i Obiekty Oceanotechniczne. Od początku pracy na Politechnice Gdańskiej aktywnie uczestniczy w projektach badawczych. Specjalizuje się w zastosowaniu numerycznej...
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The energy consumption during the birch tree sap concentration process using the reverse osmosis system
PublikacjaBirch tree sap was concentrated by mens of the reversed osmosis technique. The energy consumption in a small-scale pilot apparatus was estimated. The threshold value for the water removal above which the specific energy consumption significantly increased was identified. Below the threshold value the reversed osmosis had low energy demand and could be an attractive method for the production of birch tree sap-based beverages.
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Dynamic electrochemical impedance spectroscopy of the adsorption and relaxation of polyaniline chains during potentiodynamic redox transformations
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On the origin of surface imposed anisotropic growth of salicylic and acetylsalicylic acids crystals during droplet evaporation
PublikacjaIn this paper droplet evaporative crystallization of salicylic acid (SA) and acetylsalicylic acid (ASA) crystals on different surfaces, such as glass, polyvinyl alcohol (PVA), and paraffin was studied. The obtained crystals were analyzed using powder X-ray diffraction (PXRD) technique. In order to better understand the effect of the surface on evaporative crystallization, crystals deposited on glass were scraped off. Moreover,...
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Technological features of forming the quality characteristics of the surface layer during diamond smoothing in the integrated processing
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Analysis of power output and bar velocity during various techniques of the bench press among women
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Road mortality of pond-breeding amphibians during spring migrations in the Mazurian Lakeland, NE Poland
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Nonlinear dynamic analysis of the pure “buckling” mechanism during blow-out trauma of the human orbit
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Reactivation of seizure‐related changes to interictal spike shape and synchrony during postseizure sleep in patients
PublikacjaOBJECTIVE: Local field potentials (LFPs) arise from synchronous activation of millions of neurons, producing seemingly consistent waveform shapes and relative synchrony across electrodes. Interictal spikes (IISs) are LFPs associated with epilepsy that are commonly used to guide surgical resection. Recently, changes in neuronal firing patterns observed in the minutes preceding seizure onset were found to be reactivated during postseizure...
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Computational model for simulation of lifeboat motions during its launching from ship in rough seas
PublikacjaW artykule przedstawiono model obliczeniowy 3 D, opisujący ruch obiektu w 6 stopniach swobody (6DoF), do symulacji ruchu jedno- lub dwuzawiesiowej łodzi ratunkowej lub ratowniczej podczas opuszczania ze statku na wzburzonej wodzie. Jest to złożony model uwzględniający warunki morskie oraz elastyczność i własności tłumiące elementów i mechanizmów żurawika, liny oraz kadłuba łodzi. Ponadto przedstawiono przykładowe wyniki obliczeń...
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Damage assessment during creep and fatigue of power plant steels using destructive and nondestructive techniques
PublikacjaOpisano wyniki badń mających na celu ocena uszkodzeń od pełzania i zmęczenia stali energetycznych z wykorzystaniem technik niszczących i nieniszczących
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The Optimal Spindle Speed Map for Reduction of Chatter Vibration During Milling of Bow Thruster Blade
PublikacjaW artykule przedstwiono przykład wykorzystania procedury tworzenia mapy optymalnych prędkosci obrotowych w celu ograniczenia drgań samowzbudnych podczas frezowania płata śruby okrętowego steru strumieniowego.
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The analysis of temperature changes of the saliva traces left on the fur during laboratory rats social contacts
PublikacjaAutomatic analysis of complex rodent social be- havior, especially aggressive ones, is of important scientific interest. In this paper we analyze the properties of the data created as a result of aggressive rodent social behavior. Detec- tion of specific aggressive behaviors is based on the event of leaving traces of saliva on the fur of the attacked individual, which are clearly visible in the thermal imaging. The traces change...
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Experimental studies on the impact of changing the pipe material on the propagation of the pressure wave during water hammer
PublikacjaAim of the paper is to present the results studying the water hammer phenomenon in pipes made of different materials, and to show the impact of changing the type of material of the pipe on the velocity of the pressure wave during the transient flow in the pipes. In terms of research material and methods, pipes made of galvanized steel and high-density polyethylene were tested. Measurements were made using strain gauges with a high...
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Hydraulic analysis of causes of washout of Gdynia-Orłowo seashore during the flood in the Kacza river estuary
PublikacjaIn July 2016 in the Three-city agglomeration a rainfall episode of over a day duration and 150 mm summary rainfall height, occurred. This situation, extreme as for Polish conditions, caused significant freshets in rivers and streams running into Gdansk Bay, the Baltic Sea, and serving as collectors of rainfall waters for the sea-coast towns. In many areas of the Three-city flood phenomena and overflows took place. The flood also...
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Channel Blockage and Flow Maldistribution during Unsteady Flow in a Model Microchannel Plate heat Exchanger
PublikacjaThis paper describes the problem of channel blockage as a result of flow maldistribution between the channels of a model mini channel plate heat exchanger consisting of one pass on each leg. Each leg of the heat exchanger contains 51 parallel and rectangular minichannels of four hydraulic diameters namely 461 μm, 571 μm, 750 μm and 823 μm. In addition, a more complex geometry has been investigated where for the sake of breaking...
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Unsupervised machine-learning classification of electrophysiologically active electrodes during human cognitive task performance
PublikacjaIdentification of active electrodes that record task-relevant neurophysiological activity is needed for clinical and industrial applications as well as for investigating brain functions. We developed an unsupervised, fully automated approach to classify active electrodes showing event-related intracranial EEG (iEEG) responses from 115 patients performing a free recall verbal memory task. Our approach employed new interpretable...
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Experimental investigations on adiabatic frictional pressure drops of R134a during flow in 5mm diameter channel
PublikacjaThe article presents detailed two-phase adiabatic pressure drops data for refrigerant R134a at a saturation pressure of 5.5 bar corresponding to the saturation temperature of 19.4 °C. Study cases have been set for a mass flux varying from 100 to 500 kg/m2 s. The frictional pressure drop was characterized for the refrigerant R134a, for vapor qualities ranging from 0 to 1. Long-time thermal stability of test facility allowed to gather...
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THE IDENTIFICATION OF TOXIC COMPOUND EMISSION SENSITIVITY AS A DIAGNOSTIC PARAMETER DURING DYNAMIC PROCESSES OF THE MARINE ENGINE
PublikacjaChanging some parameters of the engine structure alters the emission of harmful components in the exhaust gas. This applies in particular to the damage of charge exchange system as well as fuel system and engine supercharger. These changes are much greater during the dynamic states and their accompanying transitional processes. The different sensitivity of diagnostic parameters to the same force, coming from the engine structure,...