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Impact of the surface evenness and texture on tire/road rolling resistance
PublikacjaThis paper deals with the issue of a surface's roughness and texture impact on tire/road rolling resistance. It includes a brief description of research aims, measurements and an analysis of results. It also presents observations and conclusions regarding drum facility modernisation which allows studies concerning surface's roughness and texture impact on tire/road rolling resistance.
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The assessment of microbiological purity of cosmetic preparations
Dane BadawczeThe dataset contains the results of a single series of determinations of the microbiological purity of the cosmetic based on the aqueous phase in the test for the total number of bacteria and the total number of yeasts.The tests were performed by preparing a series of decimal dilutions of the cosmetic in peptone water and performing in-depth culture...
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Impact of pollution derived from ship wrecks on the marine environment on the basis of s/s ''Stuttgart'' (Polish coast, Europe)
PublikacjaW 1943 roku niemiecki statek szpitalny, s/s Stuttgart (Lazaretschiff ''C'') został zatopiony w pobliżu portu w Gdyni. Doprowadziło to do zanieczyszczenia dna morskiego paliwem. Podczas badań przeprowadzonych w 2009 r. pobranych zostało 11 próbek osadów powierzchniowych i wody morskiej oraz 4 rdzenie. Próbki poddano analizie na zawartość zanieczyszczeń priorytetowych należących do grupy wielopierścieniowych węglowodorów aromatycznych...
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Determination of PAHs, PCBs, minerals, trace elements and fatty acids in Rapana thomasiana as an indication of pollution
PublikacjaW trakcie badań wykorzystano różne metodyki analityczne do oznaczania zawartości szerokiego spektrum składników (anality z grupy WWA i PCB), metali ciężkich i innych pierwiastków oraz kwasów tłuszczowych w próbkach tkanek miękkich mięczaków morskich pochodzących z miejsc o różnym poziomie antropopresji (obszary zanieczyszczone i niezanieczyszczone w bułgarskiej strefie przybrzeżnej Morza Czarnego).Analiza statystyczna uzyskanych...
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Rozdział 6. Epidemiologia molekularna - nowe metody typowania diagnostycznego mikroorganizmów = Molecular epidemiology new methods for diagnostic typing of microorganismus
PublikacjaMolekularne metody diagnostyczne oparte o analizę kwasów nukleinowych dają nowe możliwości laboratoriom w szybkim wykrywaniu i różnicowaniu mikroorganizmów patogennych. W pracy przedstawiono panujące tendencje w zastosowaniach metod typowania genetycznego znaczących klinicznie mikroorganizmów w Europie, a także omówiono niektóre techniki stosowane w laboratoriach mikrobiologicznych, z uwzględnieniem ich zdolności aplikacyjnych,...
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A review of phase change materials and heat enhancement methodologies
PublikacjaPhase change materials (PCMs) are an efficient alternative to store and release heat at a specific range of temperature. Here PCMs and heat enhancement methodologies for PCM storage are reviewed. A short overview of PCMs and their applications is presented in addition to the progress during the last 10 years. Heat enhancement techniques, that is, extended surfaces, multiple and composite PCMs, and encapsulation techniques, are...
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A novel method of Mycobacterium tuberculosis complex strain differentiation using polymorphic GC-rich gene sequences.
PublikacjaTuberculosis is one of the leading infectious diseases. In this work, a new genotyping method of Mycobacterium tuberculosis (Mtb) complex strain is presented. 27 Mtb genomes were analyzed for the presence of length polymorphism within polymorphic GC-rich gene sequences. Four genes, Rv3345c, Rv3507, Rv0747 and Rv3511, showing variation in length depending on the Mtb strain were selected for designing primer sequences flanking variable...
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A simple modification to improve the accuracy of methylation-sensitive restriction enzyme quantitative polymerase chain reaction
PublikacjaDNA digestion with endonucleases sensitive to CpG methylation such as HpaII followed by polymerase chain reaction (PCR) quantitation is commonly used in molecular studies as a simple and inexpensive solution for assessment of region-specific DNA methylation. We observed that the results of such analyses were highly overestimated if mock-digested samples were applied as the reference.We determined DNA methylation levels in several...
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Zagrożenie środowiska ze strony człowieka
PublikacjaOpisano główne zagrożenia ze strony człowieka dla środowiska naturalnego. Podkreslono znaczenie czystego powietrza i czystej wody dla pawidłowego funkcjonowania ekosystemów, w tym człowieka. Omówiono zanieczyszczenie powietrza ''kwaśnymi gazami'' oraz pyłami, emisję do środowiska metali ciężkich, freonów, i związane z tym problemy powstawania dziury ozonowej oraz efektu cieplarnianego. Omówiono również zanieczyszczenie wód lotnymi...
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Applying of thin plate boundary condition in analysis of ship’s magnetic field
PublikacjaThis paper presents computer simulations of ship’s magnetic signatures using a new thin plate boundary condition implemented in the Opera-3d 18R2 program. The paper aims to check the magnetic signatures’ numerical calculations precision of objects using the thin plate boundary conditions and analysis of the magnetic signature of ship with a degaussing system and with and without inner devices.
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Phraseological Units in Audiovisual Translation. A Case Study of Polish Dubbing of Disney’s 'The Little Mermaid'
PublikacjaThe paper aims to discuss phraseological units as the object of audiovisual translation in the Polish dubbing of Disney’s 'The Little Mermaid', to discuss the role of phraseological translation techniques, and to present possible translation inconsistencies. A theoretical introduction presents definitions for crucial terms. It is followed by the analysis of the corpus of phraseological units in Disney’s The Little Mermaid and...
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A place of school in the idea of the sustainable development
PublikacjaWell designed school space enables social contacts, increases activity of pupils and improves the condition of their health. However, the best design would not bring the expected benefits if it is not integrated with the surroundings in terms of transportation, security and local needs. In the sustainable development, the social goals are in harmony with ecological aims according to the rule of "3 r" (reduce, reuse, recycle).
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Metals in the environment as risk factors for infectious diseases: gaps and opportunities
PublikacjaThis chapter aims to provide insights into current knowledge and gaps in our understanding of the influence that trace metals in the environment have on the pathogenesis of infectious diseases. By reducing immune function, trace metal deficiencies may substantially contribute to the global burden of diarhea, pneumonia, and malaria. Improved methods and biomarkers for assessing the risk of trace metals deficiencies and toxicities...
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Image as a key factor of brand value at social media
PublikacjaThe paper aims to investigate the relationship between social media presence and activities and brand value for the most valuable Global Brands 2012 (Interbrandt 2013). Social media communication is an innovative way of communication. Brand value is a key performance indicator of brand strategy for managers. Brand and category image realized to be the key factor of investigated relation.
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Barriers of cross-cultural interactions according to the research findings
PublikacjaThe aims of this article are to label major cultural barriers and to present results of empirical findings referring to barriers to intercultural interactions in foreign subsidiaries of transnational corporations (TNCs). The qualitative research was conducted in TNCs'foreign subsidiaries operating in Poland in winter 2009/2010. The article describes how respondents perceive the problems in cooperation with foreigners, their sources,...
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Acoustic Sensing Analytics Applied to Speech in Reverberation Conditions
PublikacjaThe paper aims to discuss a case study of sensing analytics and technology in acoustics when applied to reverberation conditions. Reverberation is one of the issues that makes speech in indoor spaces challenging to understand. This problem is particularly critical in large spaces with few absorbing or diffusing surfaces. One of the natural remedies to improve speech intelligibility in such conditions may be achieved through speaking...
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‘Green’ multi - residue methods for the determination of high importance currently used pesticides in environmental samples
PublikacjaThe purpose of the research has been to develop and apply ‘green’ analytical methodologies to control and monitor the level of currently used pesticides from different chemical groups in aqueous samples. For extraction of analytes solid - phase microextraction (SPME) and dispersive liquid - liquid microextraction (DLLME) have been applied and compared. For SPME, commonly used materials for coating fibers include: polydimethylsiloxane...
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Asymptotic Expansion Method with Respect to Small Parameter for Ternary Diffusion Models
PublikacjaTernary diffusion models lead to strongly coupled systems of PDEs. We choose the smallest diffusion coefficient as a small parameter in a power series expansion whose components fulfill relatively simple equations. Although this series is divergent, one can use its finite sums to derive feasible numerical approximations, e.g. finite difference methods (FDMs).
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Construction and purification of his6-Thermus thermophilus MutS protein.
PublikacjaGen mutS z termofilnej bakterii Thermus thermophilus zamplifikowano przy użyciu PCR, sklonowano i przeprowadzono jego ekspresję w E. coli. Rekombinantowe białko MutS zawierające oligohistydynową domenę na N-końcu oczyszczono w jednoetapowej procedurze przy wykorzystaniu chromatografii powinowactwaNi(2+). Zdolność do rozpoznania niekomplementarności białka his(6)-MutS potwierdzono w eksperymentach ochrony DNA przed trawieniem...
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Miniaturization of ESPAR Antenna Using Low-Cost 3D Printing Process
PublikacjaIn this paper, the miniaturized electronically steerable parasitic array radiator (ESPAR) antenna is presented. The size reduction was obtained by embedding its active and passive elements in polylactic acid (PLA) plastic material commonly used in low-cost 3D printing. The influence of 3D printing process imperfections on the ESPAR antenna design is investigated and a simple yet effective method to compensate them has been proposed....
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Preliminary study of linear viscoelasticity limits of cold recycled mixtures determined in Simple Performance Tester (SPT)
PublikacjaThe publication presents methodology developed for determination of linear viscoelasticity limits for cold recycled mixtures with cement and bituminous emulsion using Simple Performance Tester (SPT). Methodology was verified on reference materials (PCV and steel dummy specimens, cement concrete and asphalt concrete) to comply with elasticity and viscoelasticity theory. The developed methodology enabled determination of linear viscoelasticity...
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Identyfikacja sekwencji markerowych w mikologicznej diagnostyce molekularnej
PublikacjaProcedury diagnostyki mikologicznej coraz częściej wykorzystują metody molekularne, oparte na analizie kwasów nukleinowych. Pozwala to na skrócenie czasu analizy oraz polepszenie wielu innych, istotnych dla procesu diagnostycznego parametrów takich jak: czułość, powtarzalność, specyficzność oraz potencjał różnicujący. Istotnym etapem przy projektowaniu układów do diagnostyki molekularnej grzybów jest wybór celu molekularnego. Powszechnie...
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Malignant neoplasm of prostate - Male, 67 - Tissue image [9140730014139941]
Dane BadawczeThis is the histopathological image of PROSTATE GLAND 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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Podstawy automatyki -2023
Kursy OnlineWykład z PA dla studentów studiów I stopnia Oceanotechnika sem IV
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Podstawy automatyki (PG_00055304)_2024
Kursy OnlineWykład z PA dla studentów studiów I stopnia Oceanotechnika sem IV
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SOME PROBLEMS OF SUPPORTING OFFSHORE WIND TURBINES
PublikacjaBasic problems of foundations of sea wind turbines are considered in this paper. This aims to search for solutions to optimize supporting of the offshore turbines with a size greater than 10 MW. The types of foundations, their basic features, including most important dimensions, applications as well as general design considerations are discussed. Numerical model of the offshore turbine and some preliminary computations for a case...
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Process [Intellectual Output 2] Guidelines for a design process leading to a high-quality Baukultur in the digital age
PublikacjaThe main aim of the intellectual output “Process” is to identify, explore and evaluate new design processes for shaping the built environment, which are informed, collaborative, and adaptable, allow customization and are generally enabled by the application of digital tools. Further, it aims at creating methodological guidelines for future-oriented design processes leading to a high-quality Baukultur in the digital age. The guidelines...
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The function of the sculpture in public space and its reception occupants of the city
PublikacjaSculpture has been with people for thousands of years. Its destiny, subject and scale have changed over the centuries. Public art, along with sculpture, began to appear in a new form (not only to commemorate important figures and events) only in the 1960s. This paper aims to answer what functions are currently performed by the sculptures located in a public space and how they are perceived by the inhabitants of the city.
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Damage detection in 3D printed plates using ultrasonic wave propagation supported with weighted root mean square calculation and wavefield curvature imaging
Publikacja3D printing (additive manufacturing, AM) is a promising approach to producing light and strong structures with many successful applications, e.g., in dentistry and orthopaedics. Many types of filaments differing in mechanical properties can be used to produce 3D printed structures, including polymers, metals or ceramics. Due to the simplicity of the manufacturing process, biodegradable polymers are widely used, e.g., polylactide (polylactide...
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Tensile and Fatigue Behavior of Additive Manufactured Polylactide
PublikacjaThis article presents the results of monotonic tensile and fatigue tests conducted on commercial polylactide or polylactic acid (PLA). The results of fatigue tests for this material present in the literature are limited, especially for additive manufactured elements. The specimens were manufactured using the injection molding and the fused filament fabrication (FFF) method. The FFF specimens were divided into five subgroups, depending...
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Highly crystalline colloidal nickel oxide hole transport layer for low-temperature processable perovskite solar cell
PublikacjaHighly crystalline NiOX usually requires high annealing temperature (>300 °C) which is incompatible with flexible substrate and might consume high amount of energy. Herein, we demonstrate a facile emulsion process to synthesize highly crystalline, low temperature deposition (<150 °C) and solution processable NiOx nanoparticles (NPs) as a hole transport layer for the perovskite solar cells (PVSCs). A novel surfactant of tetramethylammonium...
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USŁUGA RÓWNOWAŻENIA OBCIĄŻENIA W SYSTEMIE OPENSTACK
PublikacjaNiniejszy artykuł ma na celu pokazanie funkcjonowania równoważenia obciążenia dla serwisu Neutron odpowiedzialnego za tworzenie i obsługę usług sieciowych dla użytkowników OpenStack’a. Stanowi on podstawę do zapewnienia komunikacji wewnątrz systemowej, z systemem jak i z wewnętrznymi prywatnymi sieciami systemowymi. W artykule przedstawiono wyniki bazując na edycji Juno, którą zaimplementowano w celu przeprowadzenia badań i analizy...
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Membranowe elektrody jonoselektywne zawierające amidowe pochodne p-tert-butylohomooksakaliksarenów
PublikacjaDietyloamidowe pochodne p-tert-butylodihomooksakaliks[4]arenu (1), p-tertbutyloheksahomotrioksakaliks[3]arenu (2) zostały zastosowane jako materiały aktywne w membranowych elektrodach jonoselektywnych (JSE) by zbadać ich selektywność względem jonów Na+, K+, Cs+, Mg2+, Ca2+, Mn2+, Cu2+, Zn2+, Cd2+, Pb2+ i porównać z badaną wcześniej pochodną dietyloamidową p-tert-butylokaliks[4]arenu (3). Związkitestowano w membranach PCV zawierających...
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Ograniczenia wirtualnego miernika impedancji opartego na karcie akwizycji danych
PublikacjaW artykule przedstawiono wirtualny miernik parametrów elementów RLC, zrealizowany w oparciu o komputer PC z zainstalowana kartą akwizycji danych(PCI-6040E) wyposażoną w przetworniki a/c i c/a. Analizowano właściwości metrologiczne miernika zależne od parametrów zastosowanej karty. Przeprowadzono badania symulacyjne błędu pomiaru pojemności uwzględniajace rozdzielczośc i częstotliwośc próbkowania przetwornika a/c oraz jego czas...
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Wykorzystanie magazynu chłodu w kompaktowej komorze przechowalniczej
PublikacjaNiniejszy artykuł został poświęcony możliwości wykorzystania pasywnych systemów chłodzenia w mobilnych komorach przechowalniczych. Dokonano przeglądu rozwiązań dostępnych na rynku komór termicznych wraz z wykorzystywanymi w nich technologiami chłodzenia. Przeprowadzono analizę możliwych do zastosowania nośników chłodu w systemach pasywnego chłodzenia. Wykazano, iż oprócz popularnych na rynku materiałów zmiennofazowych (PCM – ang....
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Analysis of positioning error and its impact on high frequency properties of differential signal coupler
PublikacjaThis paper presents the analysis of the effect of differential signal coupler positioning accuracy on its high frequency performance parameters for contact-less high speed chip-to-chip data transmission on PCB application. Our considerations are continuation of the previous works on differential signal coupler concept, design methodology and analysis for high speed data transmission monitoring. The theoretical analysis of possible...
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Parallel computations in the volunteer based Comcute system
PublikacjaThe paper presents Comcute which is a novel multi-level implemen- tation of the volunteer based computing paradigm. Comcute was designed to let users donate the computing power of their PCs in a simplified manner, requiring only pointing their web browser at a specific web address and clicking a mouse. The server side appoints several servers to be in charge of execution of particular tasks. Thanks to that the system can survive...
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Anthropogenic trace metals in Setiu Wetland: Spatial and seasonal distribution and implications for environmental health
PublikacjaThe growing urban wastewater volume poses a major global environmental challenge, especially in developing nations where inadequate treatment and discharge impact clean water availability. This study focused on Setiu Wetland, aiming to analyze seasonal and spatial variations of trace metals in particulate form from anthropogenic and pathogenic sources. Surface water samples were collected from multiple stations, measuring physical...
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Rainwater chemistry composition in Bellsund: Sources of elements and deposition discrepancies in the coastal area (SW Spitsbergen, Svalbard)
PublikacjaDiscrepancies in rainfall chemistry in Bellsund were found to be influenced by the orographic barrier and related to the variability in the inflow of air masses as well as to the distance of sampling sites from the sea and thus the extent of sea spray impact. This study covers measurements of rainfall (P) and air temperature (T), physicochemical parameters (pH, specific electrolytic conductivity (SEC), major ions (Cl , NO3 , SO4...
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Performance of Passive and Active Balancing Systems of Lithium Batteries in Onerous Mine Environment
PublikacjaTo use lithium-iron-phosphate battery packs in the supply systems of any electric mining equipment and/or machines, the required conditions of work safety must be met. This applies in particular to coal mines endangered by fire and/or explosion. To meet the spark-safety conditions, the cells (together with the battery management system—BMS) must be isolated from the influence of the environment, and therefore placed in special...
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Identification of defected sensors in an array of amperometric gas sensors
PublikacjaPurpose Amperometric gas sensors are commonly used in air quality monitoring in long-term measurements. Baseline shift of sensor responses and power failure may occur over time, which is an obstacle for reliable operation of the entire system. The purpose of this study is to check the possibility of using PCA method to detect defected samples, identify faulty sensor and correct the responses of the sensor identified as faulty. Design/methodology/approach In...
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The Distribution of Glucosinolates in Different Phenotypes of Lepidium peruvianum and Their Role as Acetyl- and Butyrylcholinesterase Inhibitors—In Silico and In Vitro Studies
PublikacjaThe aim of the study was to present the fingerprint of different Lepidium peruvianum tu- ber extracts showing glucosinolates-containing substances possibly playing an important role in preventinting dementia and other memory disorders. Different phenotypes of Lepidium peruvianum (Brassicaceae) tubers were analysed for their glucosinolate profile using a liquid chromatograph coupled with mass spectrometer (HPLC-ESI-QTOF-MS/MS platform)....
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Seasonal contributions of nutrients from small urban and agricultural watersheds in northern Poland
PublikacjaDiffuse sources of pollution like agricultural or urban runoff are important factors in determining the quality of surface waters, although they are more difficult to monitor thanpointsources.Theobjectiveofourstudywastoverifyassumptionsthattheinflow from agricultural nutrient sources is higher than from urbanized ones. It has been done by comparing the nutrients and organic matter concentrations and loads for three small streams...
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Investigation of sweet substances of different molecular structure by potentiometric taste sensor with all solid state electrodes
PublikacjaA five channel potentiometric taste sensor consisting of an array of All Solid State Electrodes (ASSESs) with different lipid-polymer membranes has been developed. The electrodes are constructed of glassy carbon discs with electrochemically deposited poly(3,4-ethylenedioxythiophene) (PEDOT) acting as ion to electron transducer. The outer layer of the electrode is lipid-polymer membrane. Lipid substances immobilized in PVC membranes...
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Numerical modelling of moored floating structures using SPH. Preliminary results
PublikacjaThis article presents partial results of the works carried out under the research project "The development of the methodof modeling the dynamics of the floating (offshore) objects subjected to the environment influence", which aims at developing computational methods for modeling the dynamics of offshore structures.The article contains the description of the method of modeling the hydrodynamic impacts using SPH method and the description...
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Exploration of Creativity Techniques in Software Engineering in Training-Application-Feedback Cycle
PublikacjaCreativity research has proposed about a hundred and fifty creativity techniques. The question is whether they can be applied in software engineering for creativity training or directing creativity in software projects. This paper aims at answering this question via a quasi-experiment conducted in Training-Application-Feedback cycle in which participants express their opinions about selected creativity techniques after training...
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Computer Controlled Systems Lab - 2023/2024
Kursy OnlineComputer Controlled Systems Lab The course includes 5 individual projects and their laboratory implementation. The topics:- Job analysis and tuning digital servo- Usage of a PC computer and MatLab package for controlling the dynamic object as a model of the tethered helicopter- Use of C language and the PC to control the plant in real time- Use of assembly language, and a microcontroller to control the plant in real time- Use...
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Computer Controlled Systems Lab - Nowy - Nowy
Kursy OnlineComputer Controlled Systems Lab The course includes 5 individual projects and their laboratory implementation. The topics:- Job analysis and tuning digital servo- Usage of a PC computer and MatLab package for controlling the dynamic object as a model of the tethered helicopter- Use of C language and the PC to control the plant in real time- Use of assembly language, and a microcontroller to control the plant in real time- Use...
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Andrzej Chybicki dr inż.
OsobyZ wykształcenia informatyk, absolwent Wydziału Elektroniki, Telekomunikacji i Informatyki Politechniki Gdańskiej, doktor nauk technicznych w dziedzinie informatyka specjalizujący się w przetwarzaniau danych przestrzennych w rozproszonych systemach informatycznych. Ukierunkowany na wykorzystywanie osiągnięć i wiedzy zakresu prowadzonych badań w przemyśle. Współpracował z szeregiem podmiotów przemysłu informatycznego, geodezyjnego...
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Malignant neoplasm of prostate - Male, 67 - Tissue image [9140730014139191]
Dane BadawczeThis is the histopathological image of PROSTATE GLAND 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.