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721
Study on On-line Detection Method of Heavy Duty Truck Gearbox Assembly Quality based on Wavelet Analysis
Published 2021-03-01“…In order to determine the assembly quality of a certain type of gearbox, the common assembly faults of gearbox are briefly introduced based on the internal structure of gearbox, the characteristics frequencies of common faults of each gear and bearing in each gear position of gearbox are theoretically analyzed, an acoustic signal acquisition experimental platform is built and used to collect the acoustic signals of targeted gearbox in different gears. The collected signals are further processed through using the wavelet threshold de-noising method and then decomposed by using the wavelet analysis. …”
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722
Analisis Perubahan Luas Lahan Hijau Di Kota Bogor Dengan Citra Landsat 8 Menggunakan Normalized Difference Vegetation Index
Published 2024-12-01“…The process of classifying NDVI values for vegetation and non-vegetation classes is carried out using the threshold method. Based on the research process that has been carried out for the area of vegetation in Bogor City from 2015 - 2020, it has increased by 4,46 Km2 with a land change rate of 14.4%. …”
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723
Methods for Extracting Fractional Vegetation Cover from Differentiated Scenarios Based on Unmanned Aerial Vehicle Imagery
Published 2024-11-01“…In this paper, based on 12 UAV visible light images in differentiated scenarios in the Ebinur Lake basin, Xinjiang, China, various methods are used for high-precision FVC estimation: Otsu’s thresholding method combined with 12 Visible Vegetation Indices (abbreviated as Otsu-VVIs) (excess green index, excess red index, excess red minus green index, normalized green–red difference index, normalized green–blue difference index, red–green ratio index, color index of vegetation extraction, visible-band-modified soil-adjusted vegetation index, excess green minus red index, modified green–red vegetation index, red–green–blue vegetation index, visible-band difference vegetation index), color space method (red, green, blue, hue, saturation, value, lightness, ‘a’ (Green–Red component), and ‘b’ (Blue–Yellow component)), linear mixing model (LMM), and two machine learning algorithms (a support vector machine and a neural network). …”
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724
Phase 3 evaluation of an innovative simple molecular test for the diagnosis of malaria in different endemic and health settings in sub-Saharan Africa (DIAGMAL).
Published 2022-01-01“…<h4>Background</h4>Rapid Diagnostic Tests (RDTs) have become the cornerstone for the management of malaria in many endemic settings, but their use is constrained for several reasons: (i) persistent malaria antigen (histidine-rich protein 2; HRP2) leading to false positive test results; (ii) hrp2 deletions leading to false negative PfHRP2 results; and (iii) limited sensitivity with a detection threshold of around 100 parasites/μl blood (pLDH- and HRP2-based) leading to false negative tests. …”
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725
Analytical Validation of Wrist-Worn Accelerometer-Based Step-Count Methods during Structured and Free-Living Activities
Published 2024-12-01“… Introduction: Wrist-worn accelerometers can capture stepping behavior passively, continuously, and remotely. Methods utilizing peak detection, threshold crossing, and frequency analysis have been used to detect steps from wrist-worn accelerometer data, but it remains unclear how different approaches perform across a range of walking speeds and free-living activities. …”
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726
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727
Comparative Effectiveness of 100 mg/kg Levetiracetam Injection in Two Different Epilepsy Models: Temporal Lobe Epilepsy and Genetic Absence Epilepsy
Published 2025-09-01“…For the kindling procedure, Wistar rats were stimulated at after discharge (AD) threshold twice daily. After three consecutive stage five seizures, the animals were considered kindled and randomly divided into two groups. …”
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728
Cortical activation and functional connectivity during different attention tasks using functional near-infrared spectroscopy in middle-aged and elderly people
Published 2025-05-01“…Abstract Background Attention plays a vital part in the cognitive process, where different kinds of attention are associated with separate brain mechanisms. …”
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729
Measurement of Optical Path Difference of Point-Ahead Angle Mechanism with a Multi-Layer Thermal Insulated Equal-Arm Heterodyne Interferometer
Published 2025-04-01“…This constraint requires that the measurement noise of the interferometer remains below this threshold to guarantee the precision needed for gravitational wave detection in space. …”
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730
Evaluation of antibacterial activities of three commonly used antibiotics produced by different manufactures on female urinary tract infection uropathogens in Kalar city.
Published 2023-09-01“…Numerous antibiotics produced by different manufactures, under different brands names are available in pharmacies for urinary tract infection (UTI) treatment; this study proceeds to find out and evaluates antibacterial activities of three most used antibiotics, produced by different antibiotic producers on uropathogens in Kalar city. …”
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731
Study on the Method of Real-Time Picking up the First Break of Seismic Phase in Museum Response Monitoring
Published 2025-03-01“…On the basis of characteristics of complex museum environment, low signal-to-noise ratio, non-stationary, and aperiodic signals, a real-time picking algorithm for automatic recognition of earthquake first break was proposed. [Methods] The vibration signals that may exist in the museum were compared with the seismic signals under different intensities, different sites, and other conditions, and the difference between them is used to pick up the first arrival of the earthquake in real time. …”
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732
Coordinated Headway-Based Control Method to Improve Public Transit Reliability considering Control Points Layout
Published 2020-01-01“…In the proposed control method, the threshold value for activating stop-skipping strategy is raised, avoiding provoking much additional waiting time because of boarding rejected. …”
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733
Sex Differences in the Variability of Physical Activity Measurements Across Multiple Timescales Recorded by a Wearable Device: Observational Retrospective Cohort Study
Published 2025-04-01“…In addition, intraindividual variability differed by decade of life, with older age groups tending to have less variability in PA (Kruskal-Wallis H=40.55; P<.001; Bonferroni-corrected significance threshold for 15 comparisons: P=.003). …”
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734
Intelligent Trust Evaluation Method for Underwater Sensor Networks Based on Fuzzy Clustering and Dynamic Weight Allocation
Published 2025-04-01“…However, most existing trust evaluation methods rely on the linear weighting of trust features and the decision-making method based on threshold comparison. …”
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735
Seasonal analysis of spatial and temporal variations in NDVI and its driving factors in Inner Mongolia during the vegetation growing season (1999–2019)
Published 2025-04-01“…Using MODIS monthly NDVI products and meteorological data, we analyzed NDVI trends across Inner Mongolia’s distinct vegetation zones. Statistical methods (e.g., trend analysis, correlation tests) were applied to assess spatial-temporal NDVI variations and climate linkages, with significance thresholds set at p < 0.05 and p < 0.01. …”
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736
Research on the Heavy Gas Setting Method of Oil-Immersed Transformer Based on Oil Flow Acceleration Characteristics
Published 2025-07-01“…The oil flow acceleration can be set as the threshold of heavy gas action, and the severity of the fault can be judged. …”
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737
Dynamic Monitoring of a Bridge from GNSS-RTK Sensor Using an Improved Hybrid Denoising Method
Published 2025-06-01“…The improved hybrid denoising method consists of the improved complete ensemble empirical mode decomposition with adaptive noise (ICEEMDAN), the detrended fluctuation analysis (DFA), and an improved wavelet threshold denoising method. …”
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738
An Improved Soil Moisture Downscaling Method Based on Soil Properties and Geographical Divisions over the Loess Plateau
Published 2025-02-01“…This study proposes an improved semi-physical SM downscaling method. The effects of environmental factors on SM in different geographical zones (Windy Sand Hills, Flood Plains, Loess Yuan, Hilly Loess, Earth-rock Hills and Rocky Mountain) were analyzed using Random Forests. …”
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739
Computational Analysis Method for Multi-subject Behavior in Public Spaces Based on Targeted Computer Vision Tracking
Published 2025-05-01“…Subsequently, computational analysis and visualization methods for revealing the interaction behaviors of different groups are explored, which involves a pedestrian identification threshold model based on human proportion characteristics that enables targeted identification and differentiation of children from adults, and a dedicated analysis module designed to visualize behavioral patterns of each identified crowd and thereby provide visual patterns for the spatial-temporal distributions of different crowds. …”
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740