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741
Double reputation and multi-angle weight-based cooperative spectrum sensing method against SSDF attacks
Published 2023-12-01“…In order to improve the ability of cooperative spectrum sensing to withstand spectrum sensing data falsification (SSDF) attacks, a double reputation and multi-angle weight-based cooperative spectrum sensing (DRMW-CSS) method was proposed.Firstly, a scoring reputation was obtained by multiple iterations of historical local decision results, and an accuracy reputation was calculated on this basis.Secondly, secondary users (SU) were screened by double reputation and multiple reputation thresholds.Then, the impact of SSDF attacks on the screening method was judged and divided into three situations.Finally, the final global decision was made using the corresponding multi-angle weight data fusion decision method according to different situations.Simulation results show that the proposed method has good sensing accuracy when facing SSDF attacks with different attack strategies and probabilities, and has better anti-attack capability compared to traditional methods.…”
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742
Ketamine and olanzapine alter behaviour and prefrontal-cortex BDNF differentially in male and female rats
Published 2025-08-01“…Abstract Schizophrenia is a severe chronic neuropsychiatric disorder with a wide-range of cognitive and mental deficits and different categories of symptoms including positive, negative, and cognitive symptoms. …”
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743
Nonlinear Vibration Analysis of Turbocharger Rotor Supported on Rolling Bearing by Modified Incremental Harmonic Balance Method
Published 2025-04-01“…The vibration responses of the nonlinear system are obtained by the modified incremental harmonic balance (MIHB) method. The results demonstrate that the MIHB method significantly improves computational efficiency compared to the traditional fourth-order Runge–Kutta method for solving this class of problems while also being capable of obtaining complete solution branches of the system. …”
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744
SARS-CoV-2 Ct values and COVID-19 symptoms in patients with haematological malignancies in South Africa
Published 2025-01-01“…Background: Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) reverse transcriptase polymerase chain reaction (RT-PCR) cycle threshold (Ct) values serve as surrogate markers for estimating viral load. …”
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745
A Deep Learning-Based Echo Extrapolation Method by Fusing Radar Mosaic and RMAPS-NOW Data
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746
Selection of reliable reference genes in Colletotrichum scovillei during different growth stages, host interactions, and plant extract treatment for qRT-PCR
Published 2025-07-01“…Abstract Selection of a reliable internal control gene is critical for quantitative real-time PCR, which is a rapid, highly sensitive, and easy method for evaluating gene expression levels in different samples or tissues. …”
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747
Analysis of Development Patterns of Built Land and Spatial Structure in Bandung City Using Landsat 8 Image Data
Published 2021-04-01“…The data used are the 2015-2020 Landsat 8 time series imagery, the 2019 SPOT-6 imagery, and the administrative boundary map. The analytical methods used to identify and differentiate between built and non-built land classes are NDVI (Normalized Difference Vegetation Index) and the OTSU method with a threshold of 0.1. …”
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748
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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749
Multi-Neutrosophic Ayni Method Based on Ancestral Logic and N-Alectic Reasoning for Ethical AI and Sustainability
Published 2025-05-01“…A key contribution is the introduction of the Euclidean Multi-Neutrosophic Consensus Measure, which quantifies the degree of alignment among diverse stakeholders' evaluations without erasing epistemic differences. This measure enables the detection of convergence thresholds in intercultural deliberation, offering a rigorous yet flexible tool for decision-making. …”
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750
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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751
A simulation method for compatibility between IMT-2020 base station with array antenna and DAB earth station
Published 2018-02-01“…The array antenna model and its parameters in ITU-R REC M.2101 were introduced in detail,and the model would be implemented in IMT deployment scenario modeling.Based on the lumped interference assessment method,the interference of the large-scale base station deployment to the central earth station at different distances was simulated,and the distance was protected by comparing the interference threshold.The research results can provide reference for future IMT system design and deployment,5G or related frequency planning.…”
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752
A Passive Islanding Method to Improve the Stability of Power Supply to Critical Loads in a Real Distribution Network
Published 2025-01-01“…For each of the relays, the low threshold was for a fast operation while the high threshold was for a secure operation. …”
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754
Structural Damage Early Warning Method of Quayside Container Crane Based on Fuzzy Entropy Ratio Variation Deviation
Published 2024-11-01“…Furthermore, engineering case analysis shows that when the structure is in a healthy state, the FERVD values at different monitoring points fluctuate within the threshold range, indicating the applicability of the proposed method in the structural health monitoring (SHM) of QCCs.…”
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755
Zero-sequence compensation method of line longitudinal current differential protection based on 5G distribution network
Published 2025-04-01“…The experimental results show that the proposed method has good current differential zero-sequence compensation effect under different fault types. …”
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A New Method for Fault Line Selection of Photovoltaic Power Station Collection Lines Based on TEO Energy
Published 2025-02-01“…Simulation verification shows that the proposed method has good selection effect under different fault positions, grounding resistances, unit outputs, and noise interference scenarios.…”
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759
A novel local contrast method based on third-order central moments for infrared small target detection
Published 2025-04-01“…Finally, the target is extracted by using an adaptive threshold segmentation operation. The experimental results in six real-life scenarios demonstrate that the proposed method occupies the best detection index compared to other similar technologies.…”
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760
Urban–rural disparities in fall risk among older Chinese adults: insights from machine learning-based predictive models
Published 2025-05-01“…Identifying key factors and differences in fall risks, along with developing predictive models, is essential for differentiated and precise interventions in China’s urban and rural older populations.MethodsThe data of 5,876 older adults were obtained from the China Health and Retirement Longitudinal Survey (Waves 2015 and 2018). …”
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