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2881
Historical information based iterative soft Kalman time-varying channel estimation method
Published 2020-09-01“…For high-speed mobile MIMO-OFDM systems,a historical information based iterative soft-Kalman filter time-varying channel estimation method was proposed.Considering that the channels experienced by different trains in the high-speed railway environment have strong correlation,the channel information of the historical train was firstly used to obtain the optimal basis function,which can be employed to model the channel.By the optimal basis function,the computational complexity was reduced and the channel estimation accuracy was improved for the proposed method.Secondly,the soft-Kalman filter and data detection were jointed to estimate the base coefficient in each iteration.To reduce the effect of data detection error propagation on the channel estimation,the soft data detection scheme was employed and the soft detection error was treated as noise in each iteration.In addition,the soft-Kalman filter used in the proposed method does not involve the AR model tracking factor,thereby avoiding the computational complexity introduced by the estimated tracking factor.The simulation results show that the proposed method has better estimation performance,and is more suitable for time-varying channel acquisition of actual high-speed mobile scenarios.…”
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2882
STUDY OF QUALITY INDICATORS AND TECHNOLOGICAL CHARACTERISTICS OF LEAVES, STEMS AND FLOWERS OF <i>INULA VISCOSA </i>(L.) AS PROMISING RAW MATERIALS
Published 2019-01-01“…The technological characteristics of the crushed raw materials are studied: bulk density, bulk mass, absorption coefficients of solvents with different ethanol content, based on the values of which 70% ethanol is selected as extractant for extraction. 70% ethanol is able to extract a multicomponent target complex of substances including phenolic acids, flavonoids, tannins, sesquiterpenoids. …”
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2883
Ground-Level Surface Reconstruction and Soil Volume Estimation in Construction Sites Using Marching Cubes Method
Published 2025-07-01“…Precise 3D representations of complex and dynamic site geometries is essential for obstacle detection, progress monitoring, and safe operation. …”
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2884
RDM-YOLO: A Lightweight Multi-Scale Model for Real-Time Behavior Recognition of Fourth Instar Silkworms in Sericulture
Published 2025-07-01“…This study presents RDM-YOLO, a computationally efficient deep learning framework derived from YOLOv5s architecture, specifically designed for the automated detection of three essential behaviors (resting, wriggling, and eating) in fourth instar silkworms. …”
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2885
XGBoost Algorithm for Cervical Cancer Risk Prediction: Multi-dimensional Feature Analysis
Published 2025-06-01“…Cervical cancer continues to pose a significant global health challenge, with early detection remaining the cornerstone for effective intervention. …”
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2886
UAV-FAENet: Frequency-Aware and Attention-Enhanced Network for Remote Sensing Semantic Segmentation of UAV Imagery
Published 2025-01-01“…To address these issues, this article proposes a lightweight and efficient semantic segmentation network for UAV remote sensing images, named UAV-FAENet, aiming to improve the detection accuracy of small targets and the quality of edge segmentation. …”
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2887
Deep Space Insights: Machine Learning Revolutionizing Astrophysical Discoveries
Published 2025-01-01“…It integrates Machine Learning as a highly impressive advancement for making scalable, efficient, and accurate tools for astronomical data which face increasing complexity and volume. …”
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2888
Determination of β-Agonist Residues in Animal-Derived Food by a Liquid Chromatography-Tandem Mass Spectrometric Method Combined with Molecularly Imprinted Stir Bar Sorptive Extract...
Published 2018-01-01“…Good linearities were obtained for six β-agonists with correlation coefficients (R2) higher than 0.994. These results indicated the superiority of the proposed method in the analysis of β-agonists in a complex matrix.…”
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2889
COVID-19 Pandemic as an Indicator of «Blank Spots» in Epidemiology and Infectious Pathology
Published 2023-06-01“…High transmissibility of SARS-CoV-2 is possible because: the binding energy of S1 protein of the virus with its receptor ACE2 is higher than that of viruses of closely related species; the virus penetrates into the endosomes of the cells more efficiently; because of the work of the replication-transcription complex, which counteracts the innate protective response of cells. …”
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2890
Determination of the metabolites, eicosanoids derived from polyunsaturated fatty acids in Drosophila tissue with high performance liquid chromatography tandem mass spectrometry
Published 2016-01-01“…Obtained results showed that the calibration curves were of good linearity for the 15 metabolites in the range of 2.5-100 ng/mL with the correlation coefficient (r) of 0.991. The limits of detection and quantitation were about 0.1-2.6 ng/g and 0.3-8.7 ng/g, respectively. …”
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2891
Speech Databases, Speech Features, and Classifiers in Speech Emotion Recognition: A Review
Published 2024-01-01“…Models like convolutional neural networks (CNNs) and long short-term memory (LSTM) networks have shown that they are better at capturing the complex temporal and spectral features of speech. …”
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2892
Shannon entropy approach reveals relevant genes in Alzheimer's disease.
Published 2019-01-01“…Alzheimer's disease (AD) is the most common type of dementia and affects millions of people worldwide. Since complex diseases are often the result of combinations of gene interactions, microarray data and gene co-expression analysis can provide tools for addressing complexity. …”
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2893
Systems Biology of Recombinant 2G12 and 353/11 mAb Production in CHO-K1 Cell Lines at Phosphoproteome Level
Published 2025-02-01“…<b>Background</b>: Chinese hamster ovary (CHO) cells are extensively used in the pharmaceutical industry for producing complex proteins, primarily because of their ability to perform human-like post-translational modifications. …”
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2894
Pointer meters recognition method in the wild based on innovative deep learning techniques
Published 2025-01-01“…This demonstrates its robustness in real scenarios and provides a new idea for recognizing pointers in low-quality images more efficiently and accurately in complex industrial scenarios.…”
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2895
Looking outside the box with a pathology aware AI approach for analyzing OCT retinal images in Stargardt disease
Published 2025-02-01“…In severely affected regions, identified by a box detection model, the total retina is segmented as a single layer to avoid errors. …”
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2896
Issues in shale oil core porosity measurement
Published 2025-03-01“…Bulk samples require a long time for pressure equilibrium due to their complex pore tortuosity, while grain samples exhibit improved nanopore connectivity in shale with more pore space detected, making the measurement more accurate and reliable. …”
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2897
Understanding the flowering process of litchi through machine learning predictive models
Published 2025-05-01“…The machine learning algorithms can handle high-dimensional nonlinear data with complex interactions, outperform traditional statistical models in ecology, and have been effectively used for plant classification, phenology detection, crop growth detection, and yield prediction. …”
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2898
Overview of Oncology: Drug-Induced Cardiac Toxicity
Published 2025-04-01“…Conventional biomarkers alone can only indicate some degree of damage that has already occurred and, therefore, early detection is key. Novel methods like genetic profiling are being developed to detect individuals at risk, prior to the onset of clinical symptoms. …”
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2899
Sugarcane Phenology Retrieval in Heterogeneous Agricultural Landscapes Based on Spatiotemporal Fusion Remote Sensing Data
Published 2025-07-01“…Remote sensing offers an efficient approach for large-scale phenology retrieval, but most studies have primarily focused on staple crops. …”
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2900
Advancement in PMN-PT transparent piezoelectric ceramic for photoacoustic/ultrasound dual-mode imaging
Published 2025-07-01“…In traditional dual-mode imaging systems, however, the opaque ultrasound transducers are integrated in complex optical and ultrasound paths, leading to compromises in imaging efficiency and sensitivity. …”
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