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681
Semi-Supervised Fault Diagnosis Method for Hydraulic Pumps Based on Data Augmentation Consistency Regularization
Published 2025-06-01“…It utilizes augmented data obtained from the improved symplectic geometry modal decomposition method as additional perturbations, expanding the feature space of limited labeled samples under different operating conditions of the pump. …”
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682
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683
A New Method for Automatic Glacier Extraction by Building Decision Trees Based on Pixel Statistics
Published 2025-02-01“…In this study, we used the Kolmogorov–Smirnov test as the theoretical basis and determined the most suitable band calculation indices to distinguish different land cover classes by comparing inter-sample separability and reasonable threshold range ratios of different indices. …”
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684
Detection method of slight bruises of apples based on hyperspectral imaging and RELIEF-extreme learning machine
Published 2019-02-01“…The results showed that the recognition accuracy of ELM model for the test set based on the full wavebands was 94.44%, and the accuracy of the Re-ELM model based on the characteristic wavebands was 96.67%, and the accuracy of the Re-SVM and Re-K mean models for the characteristic wavebands were 92.22% and 91.67%, respectively, which demonstrated that the Re-ELM was a more effective method for the bruise apple classification. Subsequently, an apple damage detection algorithm based on the characteristic wavebands and image processing was proposed, which performed an independent component algorithm (ICA) transformation of the characteristic wavebands, and selected the third component image of the ICA transformation, and used adaptive threshold segmentation to obtain the bruise area on apples. …”
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685
Computed tomography and image processing based multi-scale fracture extraction method for core samples
Published 2025-07-01“…A multiscale information-enhanced fracture segmentation method was also proposed. It combined image segmentation methods such as threshold and top-hat segmentation with edge enhancement to better capture micro-fracture information, applying different strategies for fractures of varying scales. …”
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686
Sensitivity evaluation of methods for screening JAK2 exon 12 mutations based on heteroduplex and HRM analysis
Published 2024-01-01“…Our proposed methods of heteroduplex analysis followed by PAGE and HRM-analysis for the detection of polycythemia vera-specific mutations in exon 12 of the JAK2 gene allow increasing the efficiency of using different types of sequencing and can be used as simpler and less expensive methods of preliminary screening of these mutations.…”
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687
White matter tract differences in persistent post-traumatic headache, migraine, and healthy controls: a diffusion tensor imaging study
Published 2025-07-01“…Group comparisons used general linear models with threshold-free cluster enhancement and 5,000 permutations. …”
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688
Association between the atherogenic index of plasma and incident hypertension across different blood pressure states: a national cohort study
Published 2025-05-01“…Logistic regression models, restricted cubic splines models, and threshold analyses were employed to examine the relationship between AIP and the incidence of hypertension. …”
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689
Two-stage denoising method for complex underground tunnel scene three-dimensional point clouds
Published 2025-06-01“…Finally, using a specific case of the main haulage drift and return airway in an underground mine, the processing time for each stage of point cloud denoising, the impact of angle thresholds on denoising results, comparisons between different denoising quantities, point cloud normal calculations, and key parameters for point selection in the optimization process are analyzed in detail. …”
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690
Improved tooth flank region segmentation method of interference image by U-net neural network
Published 2024-12-01“…At the same time, the traditional time-domain segmentation method has the problems such as fitting error and being difficult to determine the appropriate segmentation threshold, which will also affect the segmentation accuracy. …”
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691
Open-Circuit Fault Diagnosis Method of Energy Storage Converter Based on MFCC Feature Set
Published 2022-12-01“…Considering the difficulties in signal feature extraction, data dimension explosion, and instability of threshold determination interval in the non-invasive identification of IGBT open-circuit fault in PCS by the existing methods, this paper proposes an open-circuit fault diagnosis method of energy storage converter based on Mel-scale frequency cepstral coefficients (MFCC) feature set, so as to support the normal operation and maintenance of PCS. …”
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692
Clinical Application of MAGiC Method in Distinguishing Between Pituitary Adenoma and Rathke’s Cleft Cyst
Published 2025-06-01“…The R1 relaxation rate demonstrated superior diagnostic performance, with an area under the curve (AUC) of 0.74 (95% confidence interval [CI]: 0.65–0.82), surpassing the R2 rate (AUC 0.62; 95% CI: 0.52–0.71). The optimal threshold for R1 was determined to be 0.82, which provided a sensitivity of 79.6% and specificity of 74.1% (<i>p</i> < 0.001), whereas the optimal threshold for R2 was 14.89 (<i>p</i> = 0.030). …”
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693
A Shadow Detection Method Combining Topography and Spectra for Remote Sensing Images in Mountainous Environments
Published 2025-04-01“…Finally, a multi-level Otsu threshold method is applied to the JSM to generate the shadow mask. …”
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694
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695
RUSS-AGE study: Markers of carbohydrate metabolism and their time course in different age groups of a healthy population of the Russian Federation
Published 2024-01-01“…Blood samples were taken to measure aging markers: glucose (enzymatic ultraviolet method), insulin (chemiluminescent enzyme immunoassay), glycated hemoglobin (calorimetric method), CML, adiponectin, and leptin (enzyme immunoassay). …”
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696
Comparative analysis of normalised difference spectral indices derived from MODIS for detecting surface water in flooded rice cropping systems.
Published 2014-01-01“…However, little work has been done on determining which spectral combination in the form of Normalised Difference Spectral Indices (NDSIs) is most appropriate for surface water detection or which thresholds are most robust to separate water from other surfaces in operational contexts. …”
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697
Comparison of Long-Term Antibody Titers in Calves Treated with Different Conjunctival and Subcutaneous <i>Brucella abortus</i> S19 Vaccines
Published 2025-01-01“…In animals that were stimulated conjunctivally, the threshold value of 30 International CFT Units (ICFTUs) (for distinguishing between infective titers and vaccination titers) was observed in one animal each in group 1 and group 2 and 0 animal in group 3. …”
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698
Spectrophotometric Assessment of 5-HMF in Thermally Treated Honey: Analytical Performance Comparison of Classical and Modified Methods
Published 2025-04-01“…Both classical spectrophotometric methods, such as White and Winkler methods, and two modified simpler methods were used. …”
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699
Development of a Novel Method of Spinal Electrophysiological Assessment via Intrathecal Administration at Analgesic Doses
Published 2025-05-01“…However, there are limitations in spinal electrophysiological techniques in terms of the injection method. Traditional methods such as spinal injections may differ in the distributions and concentrations of drugs compared with intrathecal administration during the behavior test. …”
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700
Adjustment terms and coefficients of nonlinear regression-based kurtosis-adjusted equivalent sound level method
Published 2025-07-01“…The linear regression and nonlinear least squares methods obtained six different combinations of coefficients (λ) and adjustment terms [\begin{document}$ \mathrm{lg}(\beta _{N}/{\beta }_{G}) $\end{document}]. …”
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