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Wyniki wyszukiwania dla: PERFORMANCE GRADE (PG)
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Projektowanie opóźniających filtrów cyfrowych FIR metodą iteracji czasowo--częstotliwościowej.**2003, 136 s. 89 rys. 5 tab. bibliogr. 129 poz. ma- szyn. Rozprawa doktorska /11.02.2003/ WETI PG. Promotor: dr hab. inż. Ewa Hermanowicz, prof. PG.
PublikacjaRozprawa doktorska jest poświęcona projektowaniu filtrów cyfrowych ułamkowo--opóźniających typu FIR. W pracy przedstawiono dwie metody projektowania ta-kich filtrów. Pierwsza z nich jest oparta na zespolonym algorytmie Remeza.Umożliwia ona wydajne numeryczne projektowanie banków filtrów ułamkowo-opóź-niających optymalnych w sensie Czebyszewa. W drugiej metodzie projektowanieodbywa się drogą iteracji czasowo-częstotliwościowej....
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Expedited Yield Optimization of Narrow- and Multi-Band Antennas Using Performance-Driven Surrogates
PublikacjaUncertainty quantification is an important aspect of engineering design, also pertaining to the development and performance evaluation of antenna systems. Manufacturing tolerances as well as other types of uncertainties, related to material parameters (e.g., substrate permittivity) or operating conditions (e.g., bending) may affect the antenna characteristics. In the case of narrow- or multi-band antennas, this usually leads to...
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Performance and emission characteristics of diesel engines running on gaseous fuels in dual-fuel mode
PublikacjaConventional fossil fuels are being substituted with alternative green fuels because of their greenhouse gas emissions and pollution problems, which pose a severe threat to the environment. Several studies have reported the usage of biodiesel and gaseous fuels in both single and dual-fuel modes. Gaseous fuels such as producer gas, biogas, syngas, and hydrogen produced from renewable biomass could potentially be used along with...
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Application of Multinomial Logistic Regression to Model the Impact of Rainfall Genesis on the Performance of Storm Overflows: Case Study
PublikacjaIn this study, a mathematical model was proposed to analyze the performance of storm overfows. The model included the infuence of rainfall genesis on the duration of storm overfow, its volume, and the maximum instantaneous fow. The multinomial logistic regression model, which has not been used so far to model objects located in a stormwater system, was proposed to simulate the duration of storm overfow. The Iman–Conover method,...
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Hybrid cross-linked chitosan/protonated-proline:glucose DES membranes with superior pervaporation performance for ethanol dehydration
PublikacjaThis work explores a protonated L-proline:glucose (molar ratio 5:1) deep eutectic solvent (DES) in fabricating biopolymer membranes utilizing chitosan (CS). Initially, the miscibility of CS and DES to prepare homogeneous dense blend membranes has been investigated. Different techniques, such as scanning electron microscopy, contact angle (CA), atomic force microscopy (AFM), Fourier transformed infrared spectroscopy (FTIR) and swelling...
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P774Transcoronary transfer of Wharton's jelly mesenchymal pluripotent stem cells in patients with chronic ischaemic heart failure shows safety and unprecedented high-grade myocardial uptake
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The Way One Defines Specification Matters: On the Performance Criteria for Efficient Antenna Optimization in Aggregated Bi-Objective Setups
PublikacjaDesign of antenna structures for real-world applications is a challenging task that often involves addressing multiple design requirements at a time. Popular solution approaches to this class of problems include utilization of composite objectives. Although configuration of such functions has a significant effect on the cost and performance of the optimization, their specific structure is normally determined based on engineering...
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Electrochemical performance of thin free-standing boron-doped diamond nanosheet electrodes
PublikacjaIn the following work we describe preparation and the electrochemical performance of thin and free-standing heavy boron-doped diamond (BDD) nanosheets. The investigated foils were deposited on Ta substrate using microwave plasma-enhanced chemical vapor deposition technique (MPECVD). Foils of two B-dopant densities were investigated, obtained on the base of 10 k and 20 k ppm [B]/[C] ratio in the gas admixture. The obtained foils...
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Performance Evaluation of a Multidomain IMS/NGN Network Including Service and Transport Stratum
PublikacjaThe Next Generation Network (NGN) architecture was proposed for delivering various multimedia services with guaranteed quality. For this reason, the elements of the IP Multimedia Subsystem (IMS) concept (an important part of 4G/5G/6G mobile networks) are used in its service stratum. This paper presents comprehensive research on how the parameters of an IMS/NGN network and traffic sources influence mean Call Set-up Delay (E(CSD))...
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Enhanced-Performance Circularly Polarized MIMO Antenna with Polarization/Pattern Diversity
PublikacjaDesign of a compact wideband circularly polarized (CP) multiple-input multiple-output (MIMO) antenna with polarization diversity is proposed and characterized for off-body communication. The antenna is based on a simple coplanar waveguide (CPW)-fed monopole extension of the microstrip line. The orthogonal field components required by CP are induced using a simply modified right/left side ground plane. In particular, a stub extending...
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Paweł Wierzba dr hab. inż.
OsobyDr inż. Paweł Wierzba mgr inż. Elektroniki WETI PG 1994 dr inż. specjalności optoelektronika (z wyróżnieniem) WETI PG 2001 Staże badawcze w VTT Technical Research Centre of Finland w latach 1997-2000 Stypendium Akademii Fińskiej w VTT Technical Research Centre of Finland (12 miesięcy) 2002-3 Obszar zainteresowań naukowych obejmuje optyczne i światłowodowe metody pomiarowe oraz technologię wybranych ceramik i materiałów...
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Follicular lymphoma, grade 3 - Male, 42 - Tissue image [9210729554616101]
Dane BadawczeThis is the histopathological image of LYMPH NODES 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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Follicular lymphoma, grade 3 - Male, 42 - Tissue image [9210729554619161]
Dane BadawczeThis is the histopathological image of LYMPH NODES 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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Follicular lymphoma, grade 3 - Male, 42 - Tissue image [921072955461581]
Dane BadawczeThis is the histopathological image of LYMPH NODES 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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Follicular lymphoma, grade 3 - Male, 42 - Tissue image [9210729554613261]
Dane BadawczeThis is the histopathological image of LYMPH NODES 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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Performance of a single layer fuel cell based on a mixed proton-electron conducting composite
PublikacjaMany of the challenges in solid oxide fuel cell technology stem from chemical and mechanical incompatibilities between the anode, cathode and electrolyte materials. Numerous attempts have been made to identify compatible materials. Here, these challenges are circumvented by the introduction of a working single layer fuel cell, fabricated from a composite of proton conducting BaCe0.6Zr0.2Y0.2O3-δ and a mixture of semiconducting...
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Experimental Investigation of the Performance of an Innovative Implantable Left Ventricular Assist Device—Proof of Concept
PublikacjaThis paper presents the results of experimental performance of an innovative left ventricular assist device working on a specially designed test stand. The introduced invention is mainly applied for supporting the heart in patients with end-stage heart failure accompanied by mitral valve regurgitation and pulmonary hypertension. Moreover, the developed device has the form of a flexible balloon forming an intracardiac inert gas-filled...
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Numerical studies on the influence of selected construction features and road conditions on the performance of road cable barriers
PublikacjaCable barriers are commonly used on Polish roads, including motorways and local roads. Their main elements are pre-stressed wire ropes, which are usually anchored at two ends in concrete blocks buried in the soil. In this work numerical studies concerning the influence of selected construction features and parameters of the vehicle motion on the performance of cable barriers were performed. Numerical simulations are a useful tool...
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Combined effect of nitrogen-doped functional groups and porosity of porous carbons on electrochemical performance of supercapacitors
PublikacjaIn this work, nitrogen-doped porous carbons obtained from chitosan, gelatine, and green algae were investigated in their role as supercapacitor electrodes. The effects of three factors on electrochemical performance have been studied— of the specific surface area, functional groups, and a porous structure. Varying nitrogen contents (from 5.46 to 10.08 wt.%) and specific surface areas (from 532 to 1095 m2g−1) were obtained by modifying...
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Follicular lymphoma, grade 3 - Male, 42 - Tissue image [9210729554614621]
Dane BadawczeThis is the histopathological image of LYMPH NODES 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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Follicular lymphoma, grade 3A - Female, 42 - Tissue image [123063001618261]
Dane BadawczeThis is the histopathological image of LYMPH NODES 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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Follicular lymphoma, grade 3 - Male, 42 - Tissue image [9210729554615581]
Dane BadawczeThis is the histopathological image of LYMPH NODES 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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Follicular lymphoma, grade 3 - Male, 42 - Tissue image [9210729554615721]
Dane BadawczeThis is the histopathological image of LYMPH NODES 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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Follicular lymphoma, grade 3A - Female, 42 - Tissue image [1230630016187821]
Dane BadawczeThis is the histopathological image of LYMPH NODES 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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Follicular lymphoma, grade 3 - Male, 42 - Tissue image [9210729554615931]
Dane BadawczeThis is the histopathological image of LYMPH NODES 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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Follicular lymphoma, grade 3A - Female, 42 - Tissue image [1230630016186911]
Dane BadawczeThis is the histopathological image of LYMPH NODES 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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Follicular lymphoma, grade 3A - Female, 42 - Tissue image [1230630016186131]
Dane BadawczeThis is the histopathological image of LYMPH NODES 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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Optimized 5-hour multiplex PCR test for the detection of tinea unguium: performance in a routine PCR laboratory
PublikacjaWe recently reported the development of a 5-hour multiplex PCR test for the detection of tinea unguium and the optimization of this test by the inclusion of an inhibition control. Here we report the performance of this procedure as used in a routine clinical laboratory as compared to conventional microscopy and culture-based techniques performed in a mycology reference laboratory. We found in processing 109 samples that 22 (20.2%)...
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Long-term performance of membrane distillation process
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Numerical and Experimental Study of Tidal Turbine Performance
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Numerical and Experimental Study of Tidal Turbine Performance
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Modeling Study and Performance Investigation of a Thermoelectric Refrigerator
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Time reconstruction and performance of the CMS electromagnetic calorimeter
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A study on performance of planing-wing hybrid craft
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High-performance analog circuits : bipolar noise
PublikacjaOmówiono typowe źródła szumów występujące w tranzystorach bipolarnych, a mianowicie: cieplne, śrutowe, generacyjno-rekombinacyjne, 1/f, 1/f2, wybuchowe (RTS),lawinowe. Przedstawiono szumowy schemat zastępczy tranzystora bipolarnego oraz opisano wydajności poszczególnych źródeł szumów. Przytoczono informacje o zastępczej rezystancji tranzystora szumów oraz współczynniku szumów.
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Performance Analysis of A Photovoltaic-Thermal Integrated System
PublikacjaW artykule przedstawiono analizę energetyczną i egzergetyczną układu zintegrowanego PV/T. Straty egzergii występują zawsze w układach, w których procesy zachodzą ze zmianą temperatury i są proporcjonalne do wzrostu entropii systemu. Analiza egzergetyczna pozwala zlokalizować miejsce, wielkość i źródło termodynamicznej nieefektywności i ta informacja, trudna do pozyskania w inny sposób (np. przez analizę energetyczną) jest przydatna...
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Evaluation of the separation algorithm performance employing ANNs
PublikacjaCelem niniejszego rozdziału jest przedstawienie metodyki separacji dźwięków muzycznych bez informacji a priori o dźwiękach zawartych w muzycznym miksie. W pracy pokazano, że prawidłowo wytrenowana sztuczna sieć neuronowa (SNN)jest w stanie w sposób automatyczny poprawnie sklasyfikować dźwięki zawarte w zmiksowanym sygnale. Skuteczność klasyfikacji SNN jest porównywalna z oceną subiektywną ekspertów.
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Sprint Resisted and Assisted Priming for Peak Performance
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Prezentacja działania performance pt. Wstydzę się
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Evaluating Performance and Accuracy Improvements for Attention-OCR
PublikacjaIn this paper we evaluated a set of potential improvements to the successful Attention-OCR architecture, designed to predict multiline text from unconstrained scenes in real-world images. We investigated the impact of several optimizations on model’s accuracy, including employing dynamic RNNs (Recurrent Neural Networks), scheduled sampling, BiLSTM (Bidirectional Long Short-Term Memory) and a modified attention model. BiLSTM was...
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Performance Evaluation of Preemption Algorithms in MPLS Networks
PublikacjaPreemption is a traffic engineering technique in Multiprotocol Switching Networks that enables creation of high priority paths when there is not enough free bandwidth left on the route. Challenging part of any preemption method is to select the best set of paths for removal. Several heuristic methods are available but no wider comparison had been published before. In this paper, we discuss the dilemmas in implementing preemption...
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Monitoring of Rubber Belt Material Performance and Damage
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Impact of Silica Nanofluid Deposition on Thermosyphon Performance
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Performance of the methanol PEM fuel cell module
PublikacjaPrzedstawiono charakterystyki układu zasilania składającego się z dwóch ogniw paliwowych o mocy 1.2 kW każde. Układ był zasilany metanolem, który podlegał procesowi reformowania w reformerze firmy Genesis Fueltech. Sprawność reformera wzrastała od 33% dla obciążenia minimalnego do 78% przy obciążeniu maksymalnym. Czystość uzyskiwanego wodoru była satysfakcjonująca w całym zakresie pracy reformera.
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Performance of a hybrid microjet – microchannel cooling module
PublikacjaThe paper presents the experimental investigation of a microjet- microchannel cooling module. In which microjets of water are impinging into the microchannels and forming a liquid film on the impingement surface. Applied technology takes benefits from two very attractive heat removal techniques. When lminar jets are impinging on the surface have a very high kinetic energy at the stagnation point, also in microchannels boundary...
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XI Festiwal Sztuki Performance "Koło Czasu"
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Country Safety Performance Function and the factors affecting it
PublikacjaW artykule przedstawiono metodę modelowania wpływu wybranych czynników na liczbę ofiar śmiertelnych na poziomie światowym. Do budowy modeli wykorzystano podejście bazujące na ryzyku. Wykorzystano dane z kilkudziesięciu krajów świata.
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Stirling engine design effects on performance indicies.
PublikacjaW pracy przedstawiono analizę wpływu wybranych parametrów konstrukcyjnych silnika Stirlinga MAC-02 na jego własności eksploatacyjne. Przyjmując maksimum mocy jako kryterium optymalizacji badano jaki wpływ na wybrane wskaźniki jakości (moc i sprawność) oraz optymalizowane parametry konstrukcyjne silnika (wymiary wymiennika cieplnego oraz parametry układu korbowego) mają ograniczenia nałożone na ciepło dostarczane oraz długość...
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Performance of a Porous Electrolyte in Single-Chamber SOFCs
PublikacjaW pracy przedstawiono wyniki badań ogniwa paliwowego SOFC zbudowanego na bazie domieszkowanego tlenku cyrkonu, cermetu niklowego oraz perovskitu. Elektrolit został przygotowany jako warstwa porowata o grubości 18um. Ogniwo było badane w konfiguracji jednokomorowej.
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A survey of automatic speech recognition deep models performance for Polish medical terms
PublikacjaAmong the numerous applications of speech-to-text technology is the support of documentation created by medical personnel. There are many available speech recognition systems for doctors. Their effectiveness in languages such as Polish should be verified. In connection with our project in this field, we decided to check how well the popular speech recognition systems work, employing models trained for the general Polish language....