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1381
Study on the Evolution Mechanism of the Butterfly-Shaped Plastic Zone in Surrounding Rocks of an Underlying Roadway
Published 2025-02-01“…The results indicate the following: (1) when the horizontal distance between the working face and the roadway exceeds 35 m, no obvious changes are observed in the development pattern of the plastic zone of the surrounding rock of the roadway; (2) when the horizontal distance is less than 35 m, the rate of change in the maximum value of f increases from 0.02 MPa/m to 0.205 MPa/m as the vertical distance decreases, and the β value increases from 0.09°/m to 0.79°/m. …”
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1382
Risk prediction and effect evaluation of complicated appendicitis based on XGBoost modeling
Published 2025-04-01“…A comprehensive comparison of the four algorithms was performed using model performance metrics such as the area under the receiver’s operating characteristic curve (AUC), sensitivity, specificity, accuracy, precision, negative predictive value(NPV), positive predictive value(PPV),calibration curves, and clinical decision curve analysis (DCA). …”
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1383
Severity Classification of a Seismic Event based on the Magnitude-Distance Ratio Using Only One Seismological Station
Published 2014-07-01“…We used 986 events with magnitudes greater than 3 recorded from late 2003 to 2008. The algorithm classifies events with magnitude-distance ratios (a measure of the severity of possible damage caused by an earthquake) greater than a background value. …”
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1384
Enhanced Noise Suppression in Partial Discharge Signals via SVD and VMD with Wavelet Thresholding
Published 2024-01-01“…The algorithm initially employs SVD to suppress mixed noise, specifically targeting narrowband interference by decomposing the noisy signal and nullifying the corresponding singular values. …”
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1385
Impact of Assimilating Microwave Radiance Data on Forecast of "23·7" Extreme Rainstorm in North China
Published 2025-03-01“…The cloud detection algorithm utilizes the absolute value of observation minus background (OMB) for 52.8 GHz channel to identify and exclude cloudy observations. …”
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1386
The immunosuppressive role of VSIG4 in colorectal cancer and its interaction with the tumor microenvironment
Published 2025-05-01“…R software was utilized for data normalization and differential analysis, with criteria set at ∣log2FoldChange ∣ > 1 and adjusted p-value < 0.05 for gene selection. The Seurat package was employed for clustering single-cell data, while the “Monocle2” algorithm was used to perform pseudo-time analysis on the differentiation trajectory of macrophages. …”
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1387
LLM-Enhanced Framework for Building Domain-Specific Lexicon for Urban Power Grid Design
Published 2025-04-01“…Traditional methods for urban power grid design have struggled to meet the demands of multi-energy integration and high resilience scenarios due to issues such as delayed updates of terminology and semantic ambiguity. …”
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1388
Optimization of Train Operation Plans for Urban Rail Transit Based on Platform Crowding Degree
Published 2024-12-01“…The simulation results indicated that the automatically-compiled multiple-route operation schedules based on this method lowered the maximum platform crowding degree by 20.6%, compared to manually-compiled ones, highlighting the algorithm's value in practical applications.…”
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1389
Prediction of Remaining Useful Life of Packing Sets in a Plunger-Type High-Pressure Compressor Based on the PCA/SVD Analysis and NN Model
Published 2023-01-01“…In order to enhance the prediction accuracy of the RUL of high-pressure packing, a linear regression algorithm and a two-term power series regression algorithm are both integrated into the NN (neural network) model. …”
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1390
Task Allocation and Path Planning Method for Unmanned Underwater Vehicles
Published 2025-06-01“…First, we introduce a task allocation mechanism based on an Improved Grey Wolf Algorithm (IGWA). This mechanism comprehensively considers factors such as target value, distance, and UUV capability constraints to achieve efficient and reasonable task allocation among UUVs. …”
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1391
Generalized Fractional Order Complex Lorenz System-Based Dual Layer Security Enhancement Approach
Published 2025-01-01“…Various performance metrics are evaluated and compared to analyze the performance of the proposed integrated algorithm. The state of the art of the proposed work is compared by considering standard images as the input. …”
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1392
Comparison and general law research of multiple machine-learning models for proton exchange membrane electrolytic cell parameters prediction
Published 2025-05-01“…The obtained results show that voltage, membrane thickness and inlet water temperature mainly affect three performance evaluation indicators. RF algorithm (an ensemble learning framework) and GA-BP (a model integrating global search and parallel computation mechanisms) are identified as the optimal prediction models, with determination coefficients of 0.995, 0.992, 0.992 and 0.996, 0.997, 0.993 for the three indicators, respectively. …”
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1393
Inversion of snow geophysical parameters using the VHR PAZ X-band dual polarimetric SAR data: first known experiments in the Himalayan region
Published 2025-07-01“…In the present work, we utilized the copolar phase difference (CPD) for SD and Integral Equation model (IEM) for snow density. In this study, we proposed an improved algorithm for SD inversion, instead of relying on a single in-situ snow density value, we incorporated a range of snow densities (0.15 to 0.27 g/cm3), optimizing the axial ratio between 1.13 and 1.17. …”
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1394
The ability to assess the state of the fundus in patients with lens opacities of varying intensity, including patients with type 2 diabetes mellitus, using quantitative analysis of...
Published 2020-05-01“…An image processing algorithm that combined bandpass filtering, entropy analysis. and power spectral integration was used to quantify image haziness in terms of two inversely-related scales: “Blur Score” and “Clarity Score”. …”
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1395
Towards a harmonized operational earthquake forecasting model for Europe
Published 2025-03-01“…We propose a method modification that integrates information from the 2020 European Seismic Hazard Model (ESHM20) about the spatial variation in background seismicity during ETAS parameter inversion based on the expectation–maximization (EM) algorithm. …”
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1396
Fuzzy Logic Controller Based Hybrid Anti Islanding Protection Scheme for Distributed Generators
Published 2024-09-01“…An activated oscillatory disturbance-type signal injection is required in the algorithm. This signal, which contains a considerably low value, is injected via the current administering loop alongside the straightforward axis of the converting devices in a contemporaneously revolving reference frame. …”
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1397
Research and Application of Embedded Control Software Security Design
Published 2018-01-01“…The embedded control software security design strategies and security analysis were presented from three aspects of security authentication chip, program encryption and decryption, integrity verification, and security processor. Finally, based on security authentication chip, symmetric and asymmetric encryption algorithm and embedded control softwarre for secure key memory, a security application solution was designed, which could protect the confidentiality, integrity and non-denied of the software. …”
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1398
Association between international normalized ratio-to-albumin ratio and mortality in critically ill patients with gastrointestinal bleeding: a retrospective MIMIC-IV database study
Published 2025-08-01“…Subgroup analyses were performed to examine potential interaction effects, and feature selection was executed via the Boruta algorithm. Finally, a prognostic nomogram integrating the key predictors was developed. …”
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1399
A METHOD OF CONTACTLESS MEASUREMENT OF SURFACE TEMPERATURE OF RADIO ELECTRONIC OBJECTS
Published 2016-08-01“…Only obtained in this way the results can be considered reliable with the determined real measurement error.Keywords: test bench, integrated circuit chip, characteristics, algorithm, charge pump, control program, virtual panel.…”
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1400
Management of capital renewal at machine-building enterprises
Published 2024-10-01“…The algorithm was developed for the formation of an integral economic effect of renewing the capital’s capacity, which is based on the very parameters of the generation potential and external officials, which allows us to create a single a system for optimal management of the manufacturing process and to ensure the expansion of the fixed capital renewal of machinery and equipment enterprises by optimizing the strategic management process.…”
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