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- Publikacje 1434 wyników po odfiltrowaniu
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Wyniki wyszukiwania dla: BIST
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Built-in Test Scheme for detection, classification and evaluation of nonlinearities
PublikacjaW artykule przedstawiono koncepcję testera wbudowanego (BIST) przeznaczonego do detekcji nieliniowości, klasyfikacji rodzaju nieliniowości i oceny zniekształceń nieliniowych sygnału testowanego, bez użycia drogiego systemu automatycznego testowania. Tester bazuje na modulatorze sigma-delta umieszczonym na pakiecie testowanym i sztucznej sieci neuronowej zaimplementowanej w komputerze osobistym. Koncepcję testera zweryfikowano poprzerz...
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Fuel cell noise data
Dane BadawczeMeasurement data of Hydrogen PEM fuel cels. The voltage fluctuations were measured over single cels of stack of 10 cels.
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1,3,4-Thiadiazole-based diamides: Synthesis and complexation properties
PublikacjaAromatic diamides, derivative of 2,6-pyridinedicarboxylic acid and isophthalic acid, bearing 1,3,4-thiadiazole residue were prepared with satisfactory yields in conventional procedures and microwave stimulated reactions. X-ray structure of N,N-bis (1,3,4-thiadiazol-2-yl)-2,6-pyridinedicarboxamide (2) DMSO solvate (2DMSO) was described. Selective zinc(II), lanthanum(III), terbium(III) and L-tyrosine recognition was found for N,N-bis(1,3,4-thiadiazol-2-yl)-2,6-pyridinedicarboxamide...
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Michał Urbaniak dr inż.
Osoby -
Rola nowego tramwaju wodnego w Gdańsku
PublikacjaStreszczenie Tramwaj wodny – środek miejskiej komunikacji zbiorowej czy jednostka przewozów turystyczny? Identyfikacja, zestawienie i analiza czynników transportu nowopowstałej usługi przewozowej z komunikacją miejską i przewozem turystycznym tj. :cennik biletów, sposobu dystrybucji biletów, czasu przejazdu dostępności, przebieg trasy i częstotliwości kursowania. Wskazanie funkcji przewozowej tramwaju wodnego w Gdańsku.
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3D Hand Shape Modeling for Automatic Assessing Motor Performance in Parkinson's Disease
PublikacjaIn this paper a method for hand pattern processing to create a 3D hand model is presented. By applying a complete hand armature to the model obtained, an interpolation of three motor tests for an individual Parkinson's disease patient can be performed. To obtain the 3D hand model the top view of the hand from a web cam is analyzed. The hand contour is examined to find characteristic points that allows for dividing hand image into...
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Methodology of Selecting the Optimal Receptor to Create an Electrochemical Immunosensor for Equine Arteritis Virus Protein Detection
PublikacjaThe study reports a methodology of selecting the optimal receptor to create an electrochemical immunosensor for equine arteritis virus (EAV) protein detection. The detection was based on antigen recognition by antibodies immobilized on gold electrodes. Modification steps were controlled by electrochemical impedance spectroscopy and cyclic voltammetry measurements. In order to obtain the impedance immunosensor with the best parameters,...
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AN OVERVIEW OF HEAT TRANSFER ENHANCEMENT BASED UPON NANOPARTICLES INFLUENCED BY INDUCED MAGNETIC FIELD WITH SLIP CONDITION VIA FINITE ELEMENT STRATEGY
PublikacjaThe mathematical model of heat generation and dissipation during thermal energy transmission employing nanoparticles in a Newtonian medium is investigated. Dimensionless boundary layer equations with correlations for titanium dioxide, copper oxide, and aluminium oxide are solved by the finite element method. Parameters are varied to analyze their impact on the flow fields. Various numerical experiments are performed consecutively...
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Corrosion degradation monitoring of ship stiffened plates using guided wave phase velocity and constrained convex optimization method
PublikacjaThe study presents an experimental investigation on the corrosion degradation level assessment using nondestructive wave-based methods. The degradation level of ship structural elements has been assessed in two different ways. The first one is based on the spectral decomposition and zero-crossing incorporated reconstruction of the dispersion curve approach of the antisymmetric Lamb wave mode and the best matching of the theoretical...
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Surgical tool tracking by on-line selection of structural correlation filters
PublikacjaIn visual tracking of surgical instruments, correlation filtering finds the best candidate with maximal correlation peak. However, most trackers only consider capturing target appearance but not target structure. In this paper we propose surgical instrument tracking approach that integrates prior knowledge related to rotation of both shaft and tool tips. To this end, we employ rigid parts mixtures model of an instrument. The rigidly...
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Znaczenie umów o popieraniu i wzajemnej ochronie inwestycji dla bezpośrednich inwestycji zagranicznych na przykładzie wybranych krajów Bałkanów Zachodnich
PublikacjaPrzedmiot badań: Przedmiotem badania jest zależność bezpośrednich inwestycji zagranicznych (BIZ) i sytuacji makroekonomicznej w gospodarkach w okresie transformacji oraz ocena znaczenia zawieranych przez te kraje umów o popieraniu i wzajemnej ochronie inwestycji (ang. Bilateral Investment Treaties – BIT) dla napływu bezpośrednich inwestycji zagranicznych. Badania są prowadzone w czterech krajach na Bałkanach Zachodnich: Bośni...
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Anna Jezierska dr inż.
Osoby -
Krzysztof Gierłowski dr inż.
OsobyKrzysztof Gierłowski uzyskał tytuł doktora inżyniera telekomunikacji na Wydziale Elektroniki, Telekomunikacji i Informatyki w 2018 roku. Jest autorem lub współautorem ponad 80 publikacji naukowych oraz recenzentem wielu czasopism i konferencji. Brał udział w szeregu projektów badawczych dotyczących tematyki IT, wliczając w to: finansowany ze źródeł UE projekt Inżynieria Internetu Przyszłości, projekt infrastrukturalny PL-LAB2020,...
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Postawy pracowników wobec zróżnicowania wiekowego w zespołach i organizacjach
PublikacjaArtykuł dotyczy postaw pracowników wobec zróżnicowania wiekowego w zespołach i organizacjach. W literaturze podkreśla się, że czynnikiem warunkującym efektywność takich zespołów są m.in. postawy pracowników wobec osób z innych grup wiekowych oraz wobec pracy z nimi, a ocena postaw pracowników jest niezbędna do wykorzystania właściwych metod zarządzania takim zespołem. Celem artykułu jest przedstawienie wyników badań dotyczących...
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Angelika Duszyńska dr inż.
OsobyAbsolwentka kierunku Budownictwo Wodne Wydziału Hydrotechniki Politechniki Gdańskiej, doktor nauk technicznych w dziedzinie Geotechnika, nauczyciel akademicki (od 2020 roku pracuje na stanowisku profesora uczelni na wydziale Inżynierii Lądowej i Środowiska PG). Prowadzi zajęcia z przedmiotów: Geoinżynieria, Geotechnika, Budowle Ziemne i Wzmacnianie podłoża, Geosyntetyki w Budownictwie, Budowle Hydrotechniczne. Od ponad 20 lat...
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Wirówka geotechniczna - historia, modelowanie i współczynniki skali
PublikacjaRozwój modelowania zjawisk geotechnicznych w wirówce. Historia rozwoju urządzenia. Przyczyny wykorzystania wirówki geotechnicznej przez ośrodki naukowe i biura inżynieryjne. Obecny status urządzenia w edukacji i przemyśle. Podstawy teoretyczne badań modelowych w wirówce geotechnicznej. Lista wybranych zależności korelacyjnych. Przegląd i dyskusja wybranych współczynników skali.
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A Comprehensive Framework for Measuring Governments’ Digital Initiatives Including Open Data
PublikacjaDigital innovation and digital initiatives are generally recognized and considered to be the driving forces behind firm survival and success in the market. This is not the case in the public sector, where digital initiatives have suffered not only from a lack of research trying to explain them but also from a major lack of recognition of their importance. The government’s eagerness to introduce more digital initiatives for better...
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Low-Cost Design Optimization of Microwave Passives Using Multi-Fidelity EM Simulations and Selective Broyden Updates
PublikacjaGeometry parameters of contemporary microwave passives have to be carefully tuned in the final stages of their design process to ensure the best possible performance. For reliability reasons, the tuning has to be to be carried out at the level of full-wave electromagnetic (EM) simulations. This is because traditional modeling methods are incapable of quantifying certain phenomena that may affect operation and performance of these...
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Photocatalytic ethylene decomposition with the use of fluidized bed photoreactor
Dane BadawczeData contain exported raw data recorded during decomposition of ethylene during utilization of fluidized bed photoreactor equipped with either UV-LEDs or fluorescent UV lamps as well as in either humid or dry conditions. In separate folder, the photographs of the photocatalytic system were included. As photocatalytic material, polystyrene spheres coated...
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Krzysztof Cwalina dr inż.
OsobyKrzysztof Kamil Cwalina w 2013 r. uzyskał tytuł inżyniera na Wydziale Elektroniki, Telekomunikacji i Informatyki Politechniki Gdańskiej; w 2014 r. uzyskał tytuł magistra inżyniera, a w 2017 r. otrzymał stopień doktora nauk technicznych w dyscyplinie: telekomunikacja, także na WETI PG. Aktualnie pracuje na stanowisku adiunkta w Katedrze Systemów i Sieci Radiokomunikacyjnych Wydziału Elektroniki, Telekomunikacji i Informatyki Politechniki...
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Features of a radial user interface to search engines
PublikacjaThe paper is concerned with a new type of user interface to search engines. Instead of presenting search results in a form of a ranked list, the results are presented in radial arrangement. In the center of the interface the most relevant web page is presented. Other web pages are located around the central one. The location of a web page depends on two factors: its relevance to the query and its content. The relevance has influence...
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Preparation and characterization of rigid polyurethane-polyglycerolnanocomposite foams
PublikacjaThis work reports on the preparation of polyurethane-polyisocyanurate (PUR-PIR) foams containing different polyglycerols and layered silicate nanoclays. The rigid polyurethane foams were obtained in a laboratory scale, in a single step method, from a two-component system with a NCO to OH groups ratio equal to two. The reaction mixture consisted of the proper amounts of a commercial oligoetherpolyol, polyglycerol, catalysts, water,...
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Methodology of Selecting the Optimal Receptor to Create an Electrochemical Immunosensor for Equine Arteritis Virus Protein Detection
PublikacjaThe study reports a methodology of selecting the optimal receptor to create an electrochemical immunosensor for equine arteritis virus (EAV) protein detection. The detection was based on antigen recognition by antibodies immobilized on gold electrodes. Modification steps were controlled by electrochemical impedance spectroscopy and cyclic voltammetry measurements. In order to obtain the impedance immunosensor with the best parameters,...
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Comparative Study of Self-Organizing Maps vs. Subjective Evaluation of Quality of Allophone Pronunciation for Nonnative English Speakers
PublikacjaThe purpose of this study was to apply Self-Organizing Maps to differentiate between the correct and the incorrect allophone pronunciations and to compare the results with subjective evaluation. Recordings of a list of target words, containing selected allophones of English plosive consonants, the velar nasal and the lateral consonant, were made twice. First, the target words were read from the list by 9 non-native speakers and...
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Considerations of Computational Efficiency in Volunteer and Cluster Computing
PublikacjaIn the paper we focus on analysis of performance and power consumption statistics for two modern environments used for computing – volunteer and cluster based systems. The former integrate computational power donated by volunteers from their own locations, often towards social oriented or targeted initiatives, be it of medical, mathematical or space nature. The latter is meant for high performance computing and is typically installed...
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A Survey on Identifying and Addressing Business Analysis Problems
PublikacjaDespite the growing body of knowledge on requirements engineering and business analysis, these areas of software project are still considered problematic. The paper focuses on problems reported by business analysts and on applicability of available business analysis techniques as solutions to such problems. A unified set of techniques was developed on the basis of 3 industrial standards associated with IIBA, REQB and IREB certification...
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Electricity demand prediction by multi-agent system with history-based weighting
PublikacjaEnergy and load demand forecasting in short-horizons, over an interval ranging from one hour to one week, is crucial for on-line scheduling and security functions of power system. Many load forecasting methods have been developed in recent years which are usually complex solutions with many adjustable parameters. Best-matching models and their relevant parameters have to be determined in a search procedure. We propose a hybrid...
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Solvation of ionic liquids based on N-methyl-N-alkyl morpholinium cations in dimethylsulfoxide – volumetric and compressibility studies
PublikacjaThe density and sound velocity of the solutions of ionic liquids based on N-alkyl-N-methyl-morpholinium cations, N-ethyl-N-methylmorpholinium bis(trifluoromethanesulfonyl)imide, N-butyl-N-methylmorpholinium bis(trifluoromethanesulfonyl)imide, N-methyl-N-octyl-morpholinium bis(trifluoromethanesulfonyl)imide and N-decyl-N-methylmorpholinium bis(trifluoromethanesulfonyl)imide in dimethylsulfoxide were measured at T = (298.15 to 318.15)...
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Małgorzata Szopińska dr inż.
OsobyMałgorzata Szopińska rozwój naukowy rozpoczęła realizując pracę doktorską pod kierunkiem prof. dr hab. inż. Żanety Polkowskiej (Politechnika Gdańska, PG) oraz dr hab. Danuty Szumińskiej (Uniwersytet Kazimierza Wielkiego w Bydgoszczy) w Katedrze Chemii Analitycznej, kierowanej wówczas przez prof. dr hab. inż. Jacka Namieśnika. Pracę doktorską pt. „Charakterystyka czynników modyfikujących skład wód powierzchniowych na obszarach...
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Anna Sobieraj-Żłobińska dr inż.
OsobyAnna Sobieraj-Żłobińska (ur. 1977 w Przasnyszu) ukończyła Liceum Ogólnokształcące im. Komisji Edukacji Narodowej w Przasnyszu. Od 1996 kontynuowała naukę na Wydziale Geodezji i Gospodarki Przestrzennej na Akademii Rolniczo-Technicznej im. Michała Oczapowskiego w Olsztynie. W 2001 zdobyła tytuł magistra inżyniera na Uniwersytecie Warmińsko-Mazurskim w Olsztynie (temat pracy dyplomowej „Określenie modelu regresji wielokrotnej do...
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Anion recognition by n,n'-diarylalkanediamides
PublikacjaThe preparation of N,N'-diarylalkanediamides from respective aliphatic dicarboxylic acidesand 4-nitroaniline via microwave-promoted reactions is presented. The most positive effect of microwave irradiation was observed for N,N'-bis(4-nitrophenyl)butanediamide. Anion binding studies on the obtained diamides were carried out in DMSO and acetonitrile using UV-vis and 1H NMR spectroscopy. A mechanism for selective fluoride recognition...
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Polynomial triset metric for unrooted phylogenetic trees
Publikacjathe following paper presents a polynomial triset metric for unrooted phylogenetic trees (based on weighted bipartite graphs and the method of determining a minimum edge cover) and its basic characteristics. also a list of further directions of research and examples of the wider use of this metric is presented.
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Electromagnetic Control and Dynamics of Generalized Burgers’ Nanoliquid Flow Containing Motile Microorganisms with Cattaneo–Christov Relations: Galerkin Finite Element Mechanism
PublikacjaIn our research work, we have developed a model describing the characteristics of the bio-convection and moving microorganisms in the flows of a magnetized generalized Burgers’ nanoliquid with Fourier’s and Fick’s laws in a stretchable sheet. Considerations have been made to Cattaneo–Christov mass and heat diffusion theory. According to the Cattaneo–Christov relation, the Buongiorno phenomenon for the motion of a nanoliquid in...
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(R,R)-1-Acetyl-1'-(2,4,6-trinitrophenyl)-2,2'-bipyrrolidine
Publikacja(R,R)-1-Acetyl-1'-(2,4,6-trinitrophenyl)-2,2'-bipyrrolidine has been synthesized and its rentgenostructure has been determined. The structure of the title molecule, C16H19N5O7, is mainly determined by the steric effect of a bulky 2,4,6-trinitrophenyl group attached to the N atom of a pyrrolidine ring. Both pyrrolidine rings adopt an envelope conformation, with one of the methylene C atoms as the flap in each case, and the N-C-C-N...
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FLUID BED COATING OF MINITABLETS AND PELLETS WITH OPTIMIZATION OF THE PROCESS BASED ON TAGUCHI METHOD
PublikacjaSmall particles like pellets are coated in fluid bed systems. This method can be also feasible for minitablets but the selection of optimal process parameters is complicated. The aim of the research was to optimize the coating process for minitablets and to compare the conditions required for pellets. Minimum fluidization velocities (umf) for 2.0 and 2.5 mm minitablets and 0.7-0.8 mm or 1.0-1.25 mm pellets were determined experimentally....
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Resource constrained neural network training
PublikacjaModern applications of neural-network-based AI solutions tend to move from datacenter backends to low-power edge devices. Environmental, computational, and power constraints are inevitable consequences of such a shift. Limiting the bit count of neural network parameters proved to be a valid technique for speeding up and increasing efficiency of the inference process. Hence, it is understandable that a similar approach is gaining...
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ECG measurement from the hand with standing - hands resting on the device - Woman 27 age
Dane BadawczeThe data set shows the measurements of the ECG signal from the hand made with the use of the proprietary measuring system, based on the AD8232 and STM32 chips. Thanks to such a constructed device, it is possible to measure the ECG signal in a non-standard way - from the hand. The results show the ECG signal for a specific hand and forearm position relative...
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ECG measurement from the hand with elbows in the air - Woman 27 age
Dane BadawczeThe data set shows the measurements of the ECG signal from the hand made with the use of the proprietary measuring system, based on the AD8232 and STM32 chips. Thanks to such a constructed device, it is possible to measure the ECG signal in a non-standard way - from the hand. The results show the ECG signal for a specific hand and forearm position relative...
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ECG measurement from the hand with elbows resting on the table top - Man 29 age
Dane BadawczeThe data set shows the measurements of the ECG signal from the hand made with the use of the proprietary measuring system, based on the AD8232 and STM32 chips. Thanks to such a constructed device, it is possible to measure the ECG signal in a non-standard way - from the hand. The results show the ECG signal for a specific hand and forearm position relative...
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ECG measurement from the hand with elbows resting on the armrests of the chair - Woman 27 age
Dane BadawczeThe data set shows the measurements of the ECG signal from the hand made with the use of the proprietary measuring system, based on the AD8232 and STM32 chips. Thanks to such a constructed device, it is possible to measure the ECG signal in a non-standard way - from the hand. The results show the ECG signal for a specific hand and forearm position relative...
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ECG measurement from the hand with elbows resting on the armrests of the chair - Woman 49 age
Dane BadawczeThe data set shows the measurements of the ECG signal from the hand made with the use of the proprietary measuring system, based on the AD8232 and STM32 chips. Thanks to such a constructed device, it is possible to measure the ECG signal in a non-standard way - from the hand. The results show the ECG signal for a specific hand and forearm position relative...
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ECG measurement from the hand with standing - hands resting on the device - Man 29 age
Dane BadawczeThe data set shows the measurements of the ECG signal from the hand made with the use of the proprietary measuring system, based on the AD8232 and STM32 chips. Thanks to such a constructed device, it is possible to measure the ECG signal in a non-standard way - from the hand. The results show the ECG signal for a specific hand and forearm position relative...
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ECG measurement from the hand with elbows resting on the table top - Woman 27 age
Dane BadawczeThe data set shows the measurements of the ECG signal from the hand made with the use of the proprietary measuring system, based on the AD8232 and STM32 chips. Thanks to such a constructed device, it is possible to measure the ECG signal in a non-standard way - from the hand. The results show the ECG signal for a specific hand and forearm position relative...
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ECG measurement from the hand with elbows in the air - Man 29 age
Dane BadawczeThe data set shows the measurements of the ECG signal from the hand made with the use of the proprietary measuring system, based on the AD8232 and STM32 chips. Thanks to such a constructed device, it is possible to measure the ECG signal in a non-standard way - from the hand. The results show the ECG signal for a specific hand and forearm position relative...
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ECG measurement from the hand with elbows to the body - Man 29 age
Dane BadawczeThe data set shows the measurements of the ECG signal from the hand made with the use of the proprietary measuring system, based on the AD8232 and STM32 chips. Thanks to such a constructed device, it is possible to measure the ECG signal in a non-standard way - from the hand. The results show the ECG signal for a specific hand and forearm position relative...
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ECG measurement from the hand with elbows to the body - Woman 27 age
Dane BadawczeThe data set shows the measurements of the ECG signal from the hand made with the use of the proprietary measuring system, based on the AD8232 and STM32 chips. Thanks to such a constructed device, it is possible to measure the ECG signal in a non-standard way - from the hand. The results show the ECG signal for a specific hand and forearm position relative...
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ECG measurement from the hand with standing - hands resting on the device - Woman 49 age
Dane BadawczeThe data set shows the measurements of the ECG signal from the hand made with the use of the proprietary measuring system, based on the AD8232 and STM32 chips. Thanks to such a constructed device, it is possible to measure the ECG signal in a non-standard way - from the hand. The results show the ECG signal for a specific hand and forearm position relative...
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ECG measurement from the hand with elbows to the body - Woman 49 age
Dane BadawczeThe data set shows the measurements of the ECG signal from the hand made with the use of the proprietary measuring system, based on the AD8232 and STM32 chips. Thanks to such a constructed device, it is possible to measure the ECG signal in a non-standard way - from the hand. The results show the ECG signal for a specific hand and forearm position relative...
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ECG measurement from the hand with elbows resting on the armrests of the chair - Man 29 age
Dane BadawczeThe data set shows the measurements of the ECG signal from the hand made with the use of the proprietary measuring system, based on the AD8232 and STM32 chips. Thanks to such a constructed device, it is possible to measure the ECG signal in a non-standard way - from the hand. The results show the ECG signal for a specific hand and forearm position relative...
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ECG measurement from the hand with elbows resting on the table top - Woman 49 age
Dane BadawczeThe data set shows the measurements of the ECG signal from the hand made with the use of the proprietary measuring system, based on the AD8232 and STM32 chips. Thanks to such a constructed device, it is possible to measure the ECG signal in a non-standard way - from the hand. The results show the ECG signal for a specific hand and forearm position relative...