Showing papers in "Measurement in 2010"

TL;DR: A multiresolution wavelet transform based system for detection and evaluation of QRS complex, P and T waves and validated using original 12 lead ECG recording collected from the physionet PTB diagnostic database.

TL;DR: A SVM-based pipeline leakage detection and pre-warning system based on Mach–Zehnder optical fiber interferometer that can detect the vibration signals along a pipeline in real time and is of good accuracy and real time performance both in recognition and locating.

TL;DR: In this article, the air-borne acoustic signals in the vicinity of injector head were recorded using three microphones around the fuel injector (120° apart from each other) and an independent component analysis (ICA) based scheme was developed to decompose these acoustic signals.

TL;DR: In this article, the authors presented a novel device for measuring components of forces and moments along and about three orthogonal axes based on E-type membranes compared to conventional sensor based on cross beams.

TL;DR: The proposed method for tracking tumor is demonstrated to help pathologists distinguish exactly lesion size and region and the proposed method is capable of solving unable exactly contoured lesion objects problem in MRI image by adding the color-based segmentation operation.

TL;DR: In this article, a new non-destructive testing (NDT) system focusing on micro size superficial defects in metallic joints is presented, which is composed by a new type of eddy currents probe, electronic devices for signal generation, conditioning and conversion, automated mechanized scanning and analysis software.

TL;DR: Experimental results show that the embedded watermark is invisible and robust to attacks and the resilience of the watermarking algorithm against a series nine different attacks for different videos is tested.

TL;DR: In this article, the authors present a comprehensive survey of the state of the art in the field of shape from reflection, including all known forward models of the reflection process, as well as numerical methods related to Shape from Specular Reflection.

TL;DR: In this article, the Cole-Cole dielectric parameters of different vegetable oils are evaluated through an innovative automatable procedure that suitably combines traditional TDR measurements, SOL calibration, frequency domain processing, TL modelling and, finally, a minimization routine.

TL;DR: In this article, a procedure for assessing a measurement system and manufacturing process capabilities using Gage Repeatability and Reproducibility (GRR) is proposed, in which the procedure provided efficient capability assessments at minimal computational and statistical efforts.

TL;DR: A low-cost method for online acquisition of ECG signal for storage and processing using a MATLAB-based Graphical User Interface (GUI) to perform online analysis on the ECG data to compute the different time-plane features and display the same on the GUI along with theECG signal plot.

TL;DR: A three stage technique for detection of premature ventricular contraction (PVC) from normal beats and other heart diseases is proposed, which includes a denoising module, a feature extraction module and a classification module.

TL;DR: In this paper, a new close-range photogrammetric bridge deflection measurement system that has high accuracy and efficiency, and can be conveniently used by engineers without help from professional surveyors is introduced.

TL;DR: In this paper, the authors presented a theoretical investigation of the acoustic emission to detect the internal leakage rate through a valve and experimental validation of the AE signals generated by internal liquid and gas leakage through valves.

TL;DR: This paper introduces simple and efficient algorithms to evaluate the roundness error from the large number of points obtained by CMMs using three internationally defined methods: Minimum Circumscribed Circle, Maximum Inscribed Circle and Minimum Zone Circles.

TL;DR: In this article, a relationship between the acquired signals variation and the tool wear in high speed milling process is established, which is based on both temporal and frequential signal processing techniques in order to extract the relevant indicators of cutting tool state.

TL;DR: In this article, the authors have developed technique of embedding fiber optic sensor in concrete and performance evaluation of the developed embedment techniques are presented, which is quite suitable for quantitative non-destructive long-term monitoring of concrete structures.

TL;DR: In this paper, a measurement method of six-axis load sharing based on the Stewart platform is presented, and the results of FEM analysis agreed well with the calculation results from the proposed method, which proves the effectiveness of the method.

TL;DR: In this paper, the KRISS nanoforce calibrator (NFC) was used to determine traceably spring constants with an uncertainty better than 1%, along with results obtained from other four calibration methods: the dimensional method, the cantilever-on-cantilever method, Sader method, and thermal noise method.

TL;DR: In this paper, a round table of researchers from National Metrology Institutes representing the US, Europe, and Asia to provide an overview of the emerging field of low-force metrology is described.

TL;DR: In this article, Correa Alegria et al. generalized the results to include a description of the distribution of the amplitude estimate, with explicit results on bias and variance as by-products.

TL;DR: In this article, a cross target with ring coded points is used to calibrate large-scale field-of-view stereo measurement systems and obtain higher measurement precision conveniently, and a new calibration model with 10 distortion parameters for each camera is proposed.

TL;DR: A data processing algorithm is developed to achieve the effectiveness, which includes data cleaning followed by feature selection, which is adopted in the classification of the wear degree of pump impellers in a slurry pump system.

TL;DR: In this paper, a wavelet analysis using the Morlet wavelet and the least mean squares (LMS) adaptive filter is proposed to remove noise and identify the point at which the ultrasonic signal starts to reflect an echo from the tip of a crack.

TL;DR: In this article, a novel method processing the gyro and accelerometer measurements with infinite impulse response (IIR) digital low-pass filter to remove the high frequency noise is investigated for marine mooring alignment.

TL;DR: In this article, an advanced discrete Fourier transform linear interpolation method (LIDFT) using classic data windows and a zero padding technique is presented. But the LIDFT method is not suitable for multiuser signal analysis.

TL;DR: In this article, the authors describe traceable nanometrology based on a nanopositioning machine with integrated nanoprobes, which is used for various tasks, such as large area scanning probe microscopy, mask and wafer inspection, nanostructuring, biotechnology and genetic engineering as well as measuring mechanical precision workpieces, precision treatment and for engineering new material.

TL;DR: The design and development of a high precision thermometer for industrial application is described and a class-1 grade K-type Thermocouple is considered for this purpose.

TL;DR: In this paper, a high-resolution spectral analysis technique, Prony Analysis (PA), is proposed for broken rotor bar detection in induction machines and compared with DFT in terms of maintaining a high resolution with a much shorter window and a better frequency estimate accuracy with the same window length.

TL;DR: In this article, an envelope estimation algorithm based on the resonance modes of the mechanical system is proposed and the exponential decay frequency of the envelope signal could be further estimated to be a quantified index for the bearing defect diagnosis.