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PULSE and ECG measurement from the hand with elbows to the body - Woman 24 age
Open Research DataThe data set presents the measurements of the pulse and the ECG signal from the hand made with the use of a proprietary measuring system based on the AD8232 chip, a set of green diode and a phototransistor made on the STM32 microcontroller. Thanks to such a constructed device, it is possible to measure the ECG signal in a non-standard way - from the...
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PULSE and ECG measurement from the hand with elbows resting on the armrests of the chair - Woman 30 age
Open Research DataThe data set presents the measurements of the pulse and the ECG signal from the hand made with the use of a proprietary measuring system based on the AD8232 chip, a set of green diode and a phototransistor made on the STM32 microcontroller. Thanks to such a constructed device, it is possible to measure the ECG signal in a non-standard way - from the...
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PULSE and ECG measurement from the hand with elbows resting on the table top - Man 30 age
Open Research DataThe data set presents the measurements of the pulse and the ECG signal from the hand made with the use of a proprietary measuring system based on the AD8232 chip, a set of green diode and a phototransistor made on the STM32 microcontroller. Thanks to such a constructed device, it is possible to measure the ECG signal in a non-standard way - from the...
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PULSE and ECG measurement from the hand with first elbow rests on the armrest, second elbow in the air - Man 30 age
Open Research DataThe data set presents the measurements of the pulse and the ECG signal from the hand made with the use of a proprietary measuring system based on the AD8232 chip, a set of green diode and a phototransistor made on the STM32 microcontroller. Thanks to such a constructed device, it is possible to measure the ECG signal in a non-standard way - from the...
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PULSE and ECG measurement from the hand with elbows resting on the table top - Woman 30 age
Open Research DataThe data set presents the measurements of the pulse and the ECG signal from the hand made with the use of a proprietary measuring system based on the AD8232 chip, a set of green diode and a phototransistor made on the STM32 microcontroller. Thanks to such a constructed device, it is possible to measure the ECG signal in a non-standard way - from the...
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PULSE and ECG measurement from the hand with single fingers - elbows resting on the armrests of the chair - Man 53 age
Open Research DataThe data set presents the measurements of the pulse and the ECG signal from the hand made with the use of a proprietary measuring system based on the AD8232 chip, a set of green diode and a phototransistor made on the STM32 microcontroller. Thanks to such a constructed device, it is possible to measure the ECG signal in a non-standard way - from the...
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PULSE and ECG measurement from the hand with first elbow rests on the armrest, second elbow in the air - Woman 24 age
Open Research DataThe data set presents the measurements of the pulse and the ECG signal from the hand made with the use of a proprietary measuring system based on the AD8232 chip, a set of green diode and a phototransistor made on the STM32 microcontroller. Thanks to such a constructed device, it is possible to measure the ECG signal in a non-standard way - from the...
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PULSE and ECG measurement from the hand with elbows in the air - Man 53 age
Open Research DataThe data set presents the measurements of the pulse and the ECG signal from the hand made with the use of a proprietary measuring system based on the AD8232 chip, a set of green diode and a phototransistor made on the STM32 microcontroller. Thanks to such a constructed device, it is possible to measure the ECG signal in a non-standard way - from the...
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PULSE and ECG measurement from the hand with standing - hands resting on the device - Woman 24 age
Open Research DataThe data set presents the measurements of the pulse and the ECG signal from the hand made with the use of a proprietary measuring system based on the AD8232 chip, a set of green diode and a phototransistor made on the STM32 microcontroller. Thanks to such a constructed device, it is possible to measure the ECG signal in a non-standard way - from the...
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PULSE and ECG measurement from the hand with single fingers - elbows resting on the armrests of the chair - Man 30 age
Open Research DataThe data set presents the measurements of the pulse and the ECG signal from the hand made with the use of a proprietary measuring system based on the AD8232 chip, a set of green diode and a phototransistor made on the STM32 microcontroller. Thanks to such a constructed device, it is possible to measure the ECG signal in a non-standard way - from the...
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PULSE and ECG measurement from the hand with elbows to the body - Woman 30 age
Open Research DataThe data set presents the measurements of the pulse and the ECG signal from the hand made with the use of a proprietary measuring system based on the AD8232 chip, a set of green diode and a phototransistor made on the STM32 microcontroller. Thanks to such a constructed device, it is possible to measure the ECG signal in a non-standard way - from the...
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PULSE and ECG measurement from the hand with elbows resting on the table top - Woman 24 age
Open Research DataThe data set presents the measurements of the pulse and the ECG signal from the hand made with the use of a proprietary measuring system based on the AD8232 chip, a set of green diode and a phototransistor made on the STM32 microcontroller. Thanks to such a constructed device, it is possible to measure the ECG signal in a non-standard way - from the...
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PULSE and ECG measurement from the hand with elbows resting on the armrests of the chair - Man 53 age
Open Research DataThe data set presents the measurements of the pulse and the ECG signal from the hand made with the use of a proprietary measuring system based on the AD8232 chip, a set of green diode and a phototransistor made on the STM32 microcontroller. Thanks to such a constructed device, it is possible to measure the ECG signal in a non-standard way - from the...
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PULSE and ECG measurement from the hand with elbows to the body - Man 30 age
Open Research DataThe data set presents the measurements of the pulse and the ECG signal from the hand made with the use of a proprietary measuring system based on the AD8232 chip, a set of green diode and a phototransistor made on the STM32 microcontroller. Thanks to such a constructed device, it is possible to measure the ECG signal in a non-standard way - from the...
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PULSE and ECG measurement from the hand with elbows to the body - Man 53 age
Open Research DataThe data set presents the measurements of the pulse and the ECG signal from the hand made with the use of a proprietary measuring system based on the AD8232 chip, a set of green diode and a phototransistor made on the STM32 microcontroller. Thanks to such a constructed device, it is possible to measure the ECG signal in a non-standard way - from the...
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PULSE and ECG measurement from the hand with first elbow rests on the armrest, second elbow in the air - Man 53 age
Open Research DataThe data set presents the measurements of the pulse and the ECG signal from the hand made with the use of a proprietary measuring system based on the AD8232 chip, a set of green diode and a phototransistor made on the STM32 microcontroller. Thanks to such a constructed device, it is possible to measure the ECG signal in a non-standard way - from the...
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PULSE and ECG measurement from the hand with standing - hands resting on the device - Man 53 age
Open Research DataThe data set presents the measurements of the pulse and the ECG signal from the hand made with the use of a proprietary measuring system based on the AD8232 chip, a set of green diode and a phototransistor made on the STM32 microcontroller. Thanks to such a constructed device, it is possible to measure the ECG signal in a non-standard way - from the...
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PULSE and ECG measurement from the hand with single fingers - elbows resting on the armrests of the chair - Woman 24 age
Open Research DataThe data set presents the measurements of the pulse and the ECG signal from the hand made with the use of a proprietary measuring system based on the AD8232 chip, a set of green diode and a phototransistor made on the STM32 microcontroller. Thanks to such a constructed device, it is possible to measure the ECG signal in a non-standard way - from the...
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PULSE and ECG measurement from the hand with elbows resting on the armrests of the chair - Woman 24 age
Open Research DataThe data set presents the measurements of the pulse and the ECG signal from the hand made with the use of a proprietary measuring system based on the AD8232 chip, a set of green diode and a phototransistor made on the STM32 microcontroller. Thanks to such a constructed device, it is possible to measure the ECG signal in a non-standard way - from the...
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PULSE and ECG measurement from the hand with elbows resting on the table top - Man 53 age
Open Research DataThe data set presents the measurements of the pulse and the ECG signal from the hand made with the use of a proprietary measuring system based on the AD8232 chip, a set of green diode and a phototransistor made on the STM32 microcontroller. Thanks to such a constructed device, it is possible to measure the ECG signal in a non-standard way - from the...
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PULSE and ECG measurement from the hand with standing - hands resting on the device - Man 30 age
Open Research DataThe data set presents the measurements of the pulse and the ECG signal from the hand made with the use of a proprietary measuring system based on the AD8232 chip, a set of green diode and a phototransistor made on the STM32 microcontroller. Thanks to such a constructed device, it is possible to measure the ECG signal in a non-standard way - from the...
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PULSE and ECG measurement from the hand with elbows in the air - Man 30 age
Open Research DataThe data set presents the measurements of the pulse and the ECG signal from the hand made with the use of a proprietary measuring system based on the AD8232 chip, a set of green diode and a phototransistor made on the STM32 microcontroller. Thanks to such a constructed device, it is possible to measure the ECG signal in a non-standard way - from the...
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PULSE and ECG measurement from the hand with elbows in the air - Woman 24 age
Open Research DataThe data set presents the measurements of the pulse and the ECG signal from the hand made with the use of a proprietary measuring system based on the AD8232 chip, a set of green diode and a phototransistor made on the STM32 microcontroller. Thanks to such a constructed device, it is possible to measure the ECG signal in a non-standard way - from the...
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PULSE and ECG measurement from the hand with first elbow rests on the armrest, second elbow in the air - Woman 30 age
Open Research DataThe data set presents the measurements of the pulse and the ECG signal from the hand made with the use of a proprietary measuring system based on the AD8232 chip, a set of green diode and a phototransistor made on the STM32 microcontroller. Thanks to such a constructed device, it is possible to measure the ECG signal in a non-standard way - from the...
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PULSE and ECG measurement from the hand with single fingers - elbows resting on the armrests of the chair - Woman 30 age
Open Research DataThe data set presents the measurements of the pulse and the ECG signal from the hand made with the use of a proprietary measuring system based on the AD8232 chip, a set of green diode and a phototransistor made on the STM32 microcontroller. Thanks to such a constructed device, it is possible to measure the ECG signal in a non-standard way - from the...
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PULSE and ECG measurement from the hand with elbows resting on the armrests of the chair - Man 30 age
Open Research DataThe data set presents the measurements of the pulse and the ECG signal from the hand made with the use of a proprietary measuring system based on the AD8232 chip, a set of green diode and a phototransistor made on the STM32 microcontroller. Thanks to such a constructed device, it is possible to measure the ECG signal in a non-standard way - from the...
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PULSE and ECG measurement from the hand with standing - hands resting on the device - Woman 30 age
Open Research DataThe data set presents the measurements of the pulse and the ECG signal from the hand made with the use of a proprietary measuring system based on the AD8232 chip, a set of green diode and a phototransistor made on the STM32 microcontroller. Thanks to such a constructed device, it is possible to measure the ECG signal in a non-standard way - from the...
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PULSE and ECG measurement from the hand with elbows in the air - Woman 30 age
Open Research DataThe data set presents the measurements of the pulse and the ECG signal from the hand made with the use of a proprietary measuring system based on the AD8232 chip, a set of green diode and a phototransistor made on the STM32 microcontroller. Thanks to such a constructed device, it is possible to measure the ECG signal in a non-standard way - from the...
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Investigating Feature Spaces for Isolated Word Recognition
PublicationThe study addresses the issues related to the appropriateness of a two-dimensional representation of speech signal for speech recognition tasks based on deep learning techniques. The approach combines Convolutional Neural Networks (CNNs) and time-frequency signal representation converted to the investigated feature spaces. In particular, waveforms and fractal dimension features of the signal were chosen for the time domain, and...
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Voltage fluctuations on the main switchgear of the industrial power system supplying the rolling mill motors
Open Research DataThe dataset presents the voltage waveforms on the bus bars of the main switchgear of the industrial power network for the supply of rolling mills. The data was recorded during an experiment whose purpose was to determine a level of short-term and long-term flicker caused by voltage fluctuations. In the virtual application of flickermeter, a hardware...
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Identification of Optocoupler Devices with RTS Noise
PublicationThe results of noise measurements in low frequency range for CNY 17 type optocouplers are presented. The research were carried out on devices with different values of Current Transfer Ratio (CTR). The methods for identification of Random Telegraph Signal (RTS) in noise signal of optocouplers were proposed. It was found that the Noise Scattering Pattern method (NSP method) enables to identify RTS noise as non-Gaussian component...
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PULSE and ECG measurement from the hand with first elbow rests on the armrest, second elbow in the air - Man 29 age
Open Research DataThe data set presents the measurements of the pulse and the ECG signal from the hand made with the use of a proprietary measuring system based on the AD8232 chip, a set of green diode and a phototransistor made on the STM32 microcontroller. Thanks to such a constructed device, it is possible to measure the ECG signal in a non-standard way - from the...
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PULSE and ECG measurement from the hand with first elbow rests on the armrest, second elbow in the air - Second Man 29 age
Open Research DataThe data set presents the measurements of the pulse and the ECG signal from the hand made with the use of a proprietary measuring system based on the AD8232 chip, a set of green diode and a phototransistor made on the STM32 microcontroller. Thanks to such a constructed device, it is possible to measure the ECG signal in a non-standard way - from the...
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PULSE and ECG measurement from the hand with first elbow rests on the armrest, second elbow in the air - Woman 27 age
Open Research DataThe data set presents the measurements of the pulse and the ECG signal from the hand made with the use of a proprietary measuring system based on the AD8232 chip, a set of green diode and a phototransistor made on the STM32 microcontroller. Thanks to such a constructed device, it is possible to measure the ECG signal in a non-standard way - from the...
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PULSE and ECG measurement from the hand with first elbow rests on the armrest, second elbow in the air - Woman 28 age
Open Research DataThe data set presents the measurements of the pulse and the ECG signal from the hand made with the use of a proprietary measuring system based on the AD8232 chip, a set of green diode and a phototransistor made on the STM32 microcontroller. Thanks to such a constructed device, it is possible to measure the ECG signal in a non-standard way - from the...
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The development of an underwater telephone for digital communication purposes
PublicationThe underwater telephone HTL-10 has been designed to provide voice and data communication between helicopter and submarines using acoustic waves. It works in a half-duplex mode and uses analogue power-efficient modulation in the form of a single side-band, suppressed carrier, in a wide range of frequencies. It generates the transmitted signal, and processes the received signals. It is implemented with the use of digital signal...
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On the Application of Magnetoacoustic Emission for a Nondestructive Assessment of the Post Welding Heat Treatment of High Chromium Steel Weld Seams
PublicationThe paper analyses the possibility of post weld heat treatment (PWHT) quality assessment with the help of magnetoacoustic emission (MAE) signal measurements. Two welded superheater tubes, made of high chromium VM12 steel, were analysed—as welded and heat treated one. The analysed sample in the as welded state exhibited significantly higher hardness, accompanied by a big difference in the MAE signal intensity (of order of about...
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Improving Objective Speech Quality Indicators in Noise Conditions
PublicationThis work aims at modifying speech signal samples and test them with objective speech quality indicators after mixing the original signals with noise or with an interfering signal. Modifications that are applied to the signal are related to the Lombard speech characteristics, i.e., pitch shifting, utterance duration changes, vocal tract scaling, manipulation of formants. A set of words and sentences in Polish, recorded in silence,...
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The radiated immunity test of an astable multivibrator at over-normative field strengths
Open Research DataThe dataset presents a result of measurements that are a part of electromagnetic field immunity tests. The radiated, radio frequency, immunity tests were carried out for a typical astable electronic multivibrator. Tests of immunity of electronic systems to radiated radio frequency (RF) disturbances in the frequency range from 80 MHz to 1 GHz were performed...
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RENOVATION OF ARCHIVE AUDIO RECORDINGS USING SPARSE AUTOREGRESSIVE MODELING AND BIDIRECTIONAL PROCESSING
PublicationThe paper presents a new approach to elimination of broadband noise and impulsive disturbances from archive audio recordings. The proposed adaptive Kalman-like algorithm, based on a sparse autoregressive model of the audio signal, simultaneously detects noise pulses, interpolates the irrevocably distorted samples and performs signal smoothing. It is shown that bidirectional (forward-backward) processing of the archive signal improves...
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Measurement and Analysis of the Radio Wave Polarisation in Off-Body Communications in Indoor Environment
PublicationThe paper describes an analysis of the radio wave polarisation in off-body communications in indoor environment. The measurement stand for polarisation measurements has been shortly described. Five investigated scenarios with different body postures and different antenna placements have been characterize. The vertical and horizontal components of received radio signal have been analysed. The measure used in analysis is a ratio...
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Silent Sonar with matched filtration
PublicationRadars with continuous wave frequency (CW FM sonars) are used in radiolocation as 'silent sonars'. They determine the distance to target by measuring the difference between the frequency of the sounding signal and echo signal. The article presents the principle of operation and parameters of silent CW FM sonars. Target distance determined by these sonars is based on the signal at the output of the matched filter. The Doppler effect...
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Wear in siding friction tests. Ring-on-ring contact. Sintered alumina ceramics (98%). Paraffin oil lubrication. Specim. sets #20-#21, #22-#23, #24-#25, #26-#27, #28-#29,#30 - #31. Run time: 0-4h. High frequency burst recording.
Open Research DataWear in sliding friction tests in ring-on-ring contact. Sintered alumina ceramics (98%) in self-mated contact. Lubrication: paraffin oil. Sliding velocity: 0.2 m/s. Mean contact stress: 10 MPa. Test rig: PT-3 Tribometer. High frequency burst recording.Running time: 0 - 4h.Specimen sets:Specim. sets (# [upper, rotating] - #[lower, non-rotating]):#20-#21,...
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Low-coherence sensors with nanolayers for biomedical sensing
PublicationIn this paper, we describe the fiber optic low-coherence sensors using thin film. We investigated their metrological parameters. Presented sensors were made with the use of standard telecommunication single mode optical fiber (SMF28). Different materials were applied to obtain thick layers, such as boron doped diamond, silver and gold. The thickness of layers used in the experiments ranged from 100 nm to 300 nm. Measurements were...
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Approximate Cramér–Rao bound on Doppler error in correlation-processing relatively narrowband noise radar
PublicationThe paper studies limitations on accuracy of Doppler estimation in continuous-wave noise radar with correlation processing. Second order properties of output of the correlation receiver are evaluated and an approximate Cram´er-Rao bound on errors of Doppler measurement is derived. The accuracy of Doppler measurements is found to be affected by the following factors: power spectral density of noise signal, frequency response of the...
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Effect of electrode resistance on admittance spectra of planar organic device carrying SCLC and on charge carrier mobility extracted from susceptance
PublicationThe work presents small signal admittance spectra of a sandwich system with thin organic layer carrying a space charge limited current. The effect of series resistance of electrodes on the spectra is discussed. Spectra of small signal capacitance are added to get more detailed insight. The analysis performed shows that the series resistance can affect both parts of small signal response within a whole range of frequency. Moreover,...
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Phong B. Dao D.Sc., Ph.D.
PeoplePhong B. Dao received the Engineer degree in Cybernetics in 2001, the M.Sc. degree in Instrumentation and Control in 2004, both from Hanoi University of Science and Technology in Vietnam, and the Ph.D. degree in Control Engineering in 2011 from the University of Twente, the Netherlands. In May 2020, Dr. Dao received the degree of D.Sc. (Habilitation) in Mechanical Engineering from the AGH University of Science and Technology, Poland....
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Improved method for real-time speech stretching
Publicationn algorithm for real-time speech stretching is presented. It was designed to modify input signal dependently on its content and on its relation with the historical input data. The proposed algorithm is a combination of speech signal analysis algorithms, i.e. voice, vowels/consonants, stuttering detection and SOLA (Synchronous-Overlap-and-Add) based speech stretching algorithm. This approach enables stretching input speech signal...
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Elimination of impulsive disturbances from archive audio files – comparison of three noise pulse detection schemes
PublicationThe problem of elimination of impulsive disturbances (such as clicks, pops, ticks, crackles, and record scratches) from archive audio recordings is considered and solved using autoregressive modeling. Three classical noise pulse detection schemes are examined and compared: the approach based on open-loop multi-step-ahead signal prediction, the approach based on decision-feedback signal prediction, and the double threshold approach,...
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The accuracy of a new approach to order determination for the Modified Prony method in swath mapping application
PublicationThis article presents the performance of a new approach to determine the model order for the modified Prony method applied to swath acoustic mapping. Key requirements for any mapping application are depth determination accuracy and angular resolution. Depth determination accuracy is strictly related to angular accuracy and geometrical relations between receiver and sources of the backscattered signal. Angular resolution determines...