Search Results - "Adam Polak"

Simulation of Fuzzy Control of Oxygen Flow in PEM Fuel Cells by Polak, Adam

“…This paper presents an alternative approach to the flow control of an oxidizer in a proton exchange membrane (PEM) fuel cell system in which pure oxygen is the…”
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Algebraic approximation of the distributed model for the pressure drop in the respiratory airways by Polak, Adam G.

“…The complexity of the human respiratory system causes that one of the main methods of analyzing the dynamic pulmonary phenomena and interpreting experimental…”
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Emotion Recognition for Everyday Life Using Physiological Signals From Wearables: A Systematic Literature Review by Saganowski, Stanislaw, Perz, Bartosz, Polak, Adam G., Kazienko, Przemyslaw

“…Smart wearables, equipped with sensors monitoring physiological parameters, are becoming an integral part of our life. In this work, we investigate the…”
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Quantitative Assessment of the Airway Response to Bronchial Tests Based on a Spirometric Curve Shift by Polak, Adam G., Obojski, Andrzej, Mroczka, Janusz

“…Objective: Although spirometry is the most common pulmonary function test, there is no method to quantitatively infer about airway resistance or other…”
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Identification of Wireless Devices of Users Who Actively Fake Their RF Fingerprints With Artificial Data Distortion by Polak, Adam C., Goeckel, Dennis L.

“…Variations in the RF chain of radio transmitters caused by imperfections of manufacturing processes can be used as a signature to uniquely associate wireless…”
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Estimation of Lung Properties From the Forced Expiration Data by Polak, Adam G., Wysoczanski, Dariusz, Mroczka, Janusz

“…Forced expiration is the most commonly applied lung function tests. Despite the problem of spirometry modeling was solved a few decades ago, a relatively small…”
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Multi–Symptom Measurement Based Fault Detection of the PEM Fuel Cell System by Polak, Adam, Kluczyk, Marcin

“…The proper functioning of the fuel cell system depends on the proper operation of all its subsystems. One of the key subsystems is the oxidant supply system,…”
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Wireless Device Identification Based on RF Oscillator Imperfections by Polak, Adam C., Goeckel, Dennis L.

“…The exploitation of slight imperfections of transmitters' hardware for identification of wireless devices has recently emerged as an effective method for…”
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Processing Photoplethysmograms Recorded by Smartwatches to Improve the Quality of Derived Pulse Rate Variability by Polak, Adam G, Klich, Bartłomiej, Saganowski, Stanisław, Prucnal, Monika A, Kazienko, Przemysław

“…Cardiac monitoring based on wearable photoplethysmography (PPG) is widespread because of its usability and low cost. Unfortunately, PPG is negatively affected…”
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Broken Rotor Bar Detection Based on Steady-State Stray Flux Signals Using Triaxial Sensor with Random Positioning by Zubčić, Marko, Pavić, Ivan, Matić, Petar, Polak, Adam

“…This paper investigates the detection of broken rotor bar in squirrel cage induction motors using a novel approach of randomly positioning a triaxial sensor…”
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Analysis of Changes in the Opening Pressure of Marine Engine Injectors Based on Vibration Parameters Recorded at a Constant Torque Load by Kluczyk, Marcin, Grządziela, Andrzej, Polak, Adam, Pająk, Michał, Gajda, Miłosz

“…This article deals with the problems related to the difficulties in the vibration diagnostics of modern marine engines. The focus was on the injection system,…”
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Single-channel EEG processing for sleep apnea detection and differentiation by Prucnal, Monika A, Polak, Adam G

“…Sleep apnea syndrome is a common sleep disorder. Detection of apnea and differentiation of its type: obstructive (OSA), central (CSA) or mixed is important in…”
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Comparison of multiband filtering, empirical mode decomposition and short-time fourier transform used to extract physiological components from long-term heart rate variability by Adamczyk, Krzysztof, Polak, Adam G.

“…Heart rate is constantly changing under the influence of many control signals, as manifested by heart rate variability (HRV). HRV is a nonstationary,…”
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Effects of homogeneous and heterogeneous changes in the lung periphery on spirometry results by Polak, Adam G., Wysoczański, Dariusz, Mroczka, Janusz

“…•The paper presents a computational model for the respiratory system during spirometric manoeuvre used for a systematic study on the effects of peripheral…”
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Effect of Feature Extraction on Automatic Sleep Stage Classification by Artificial Neural Network by Prucnal, Monika, Polak, Adam G.

“…EEG signal-based sleep stage classification facilitates an initial diagnosis of sleep disorders. The aim of this study was to compare the efficiency of three…”
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Comparison of information on sleep apnoea contained in two symmetric EEG recordings by Prucnal, Monika A, Polak, Adam G

“…Electroencephalogram (EEG) is one of biomedical signals measured during all-night polysomnography to diagnose sleep disorders, including sleep apnoea. Usually…”
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Tomographic image reconstruction via estimation of sparse unidirectional gradients by Polak, Adam G, Mroczka, Janusz, Wysoczański, Dariusz

“…Abstract Since computed tomography (CT) was developed over 35 years ago, new mathematical ideas and computational algorithms have been continuingly elaborated…”
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Use of hyperspectral imaging for cake moisture and hardness prediction by Adam Polak, Fraser K. Coutts, Paul Murray, Stephen Marshall

“…Industrial baking of sponge cakes requires various quality indicators to be measured during production such as moisture content and sponge hardness. Existing…”
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Analysis of multiple linear regression algorithms used for respiratory mechanics monitoring during artificial ventilation by Polak, Adam G

“…Abstract Many patients undergo long-term artificial ventilation and their respiratory system mechanics should be monitored to detect changes in the patient's…”
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Analysis of the method for ventilation heterogeneity assessment using the Otis model and forced oscillations by Glapiński, Jarosław, Mroczka, Janusz, Polak, Adam G

“…Highlights • We analyse the method for bimodal lung ventilation heterogeneity identification. • Respiratory impedance measurement by forced oscillations in…”
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