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23601
Repairing Errors of Inconsistent Data Based on WFT-Nets
Published 2025-01-01“…To repair the errors of data inconsistency, the reachable configuration graph (RC-Graph) of the WFT-net is traversed to locate all possible abnormal transitions, and a repair algorithm is presented according to the sequence of “process data first, persistent data later”. Finally, a set of comparative experiments with WFD-nets is done to demonstrate the effectiveness of the proposed repairing method.…”
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23602
Design of OFDM-IM system based on IRS-assisted
Published 2023-07-01“…Index modulation (IM) and intelligent reflecting surface (IRS) are emerging mobile communication technologies.In order to improve the reliability of traditional orthogonal frequency division multiplexing (OFDM) system, an orthogonal frequency division multiplexing with index modulation (OFDM-IM) system based on IRS-assisted was designed.Firstly, the OFDM-IM system was designed by using spatial modulation and frequency domain modulation to increase the Euclidean distance between subcarriers.Then, by establishing an equivalent circuit model, a practical IRS model was obtained.Finally, an alternating optimization algorithm was used to optimize the active transmission power of the access point (AP) and passive beamforming of the IRS jointly.The simulation results show that compared to the benchmark scheme, the symbol error rate (SER) or bit error rate (BER) of the OFDM-IM system based on IRS-assisted can be reduced by 60%~90%.Especially in the case of high signal-to-noise ratio, the SER or BER of the system can reach 1.0×10<sup>-6</sup>, which indicates that the introduction of IM and IRS technologies has optimized the link transmission quality of end-to-end communication system.In addition, based on the IRS-assisted OFDM-IM system as the standard, simulations are conducted to demonstrate the impact of various parameters from the IRS model and IM.It concludes that the parameters in the system should be selected reasonably according to channel state information (CSI).…”
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23603
Vulnerability Evaluation and Improvement Method of Civil Aviation Navigation Network
Published 2022-01-01“…Vulnerability evaluation shows that the navigation network is more vulnerable when subject to the intentional attack of nodes with higher comprehensive node importance than an intentional attack of nodes with a larger value of indicators used in previous literature. Finally, the vulnerability of the navigation network is improved through changing the topology of the most critical node and balancing the node importance of the whole network.…”
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23604
Anti-Inflammatory and Neuroprotective Role of Natural Product Securinine in Activated Glial Cells: Implications for Parkinson’s Disease
Published 2017-01-01“…In addition, securinine inhibited the activation of the inflammatory mediator NF-κB, as well as mitogen-activated protein kinases in lipopolysaccharide- (LPS-) stimulated BV2 cells. …”
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23605
Optimization of Flow Shop Scheduling in Precast Concrete Component Production via Mixed-Integer Linear Programming
Published 2021-01-01“…Then, the use of the MILP model was extended to optimize the production scheduling by minimizing overtime. Finally, the feasibility and effectiveness of MILP were verified by comparing the results. …”
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23606
Désir d’un renouveau pédagogique
Published 2021-01-01“…It also illustrates a new pedagogy based on working in workshops and a belief in the possibility of moving beyond set styles through the observation of plants. Finally, it reveals the complex relationships between decor and architecture in the huge Neustadt worksite in Strasbourg and in the context of emerging modernity.…”
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23607
A novel ambiguity resolution model of BeiDou navigation satellite system/inertial navigation system tightly coupled for kinematic-to-kinematic precise relative positioning
Published 2022-06-01“…In addition, a hierarchical filtering strategy is developed to eliminate ambiguity parameters in BeiDou navigation satellite system/inertial navigation system tightly coupled integrated system. Finally, the precise relative position can be calculated with the “best” ambiguity solution. …”
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23608
Theories, models and strategies in developing an effective HIV/AIDS campaign in South Africa
Published 2022-10-01“…In this paper, I shall look at media messages and campaigns on HIV/AIDS, and address the application of health communication theories in influencing health behaviour. Finally, I shall look at how theories can be used to develop effective health campaigns targeting the people of South Africa. …”
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23609
Machines’ Intelligent Fault Diagnosis Based on Hierarchical Refined Composite Generalized Multiscale Fluctuation Dispersion Entropy
Published 2024-01-01“…Subsequently, a Random Forest (RF) classifier is employed for fault identification. Finally, the effectiveness of the proposed method is validated using three typical mechanical datasets. …”
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23610
Research on the Design Method of the Modified Gear Tooth Surface Based on the Gear Time-varying Meshing Process
Published 2023-02-01“…Firstly, Ishikawa formula is improved by dividing the tooth surface along the contact trace of helical gears, and the time-varying stiffness model of helical gear pair tooth surface is established; then, the six-degree-of-freedom dynamic equation is established according to the actual meshing process of the gear pair; finally, according to the comprehensive deformation of the tooth surface calculated by the dynamic equation, the topological modification of the compensated tooth surface is designed, and the dynamic simulation is carried out. …”
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23611
Lightweight Transformer traffic scene semantic segmentation algorithm integrating multi-scale depth convolution
Published 2023-10-01“…Aiming at the problems of discontinuous segmentation of thin strip objects that were easy to blend into the surrounding background and a large number of model parameters in the semantic segmentation algorithm of traffic scenes, a lightweight Transformer traffic scene semantic segmentation algorithm integrating multi-scale depth convolution was proposed.First, a multi-scale strip feature extraction module (MSEM) was constructed based on deep convolution to enhance the representation ability of thin strip target features at different scales.Secondly, a spatial detail auxiliary module (SDAM) was designed using the convolutional inductive bias feature in the shallow network to compensate for the loss of deep spatial detail information to optimize object edge segmentation.Finally, an asymmetric encoding-decoding network based on the Transformer-CNN framework (TC-AEDNet) was proposed.The encoder combined Transformer and CNN to alleviate the loss of detail information and reduce the amount of model parameters; while the decoder adopted a lightweight multi-level feature fusion design to further model the global context.The proposed algorithm achieves the mean intersection over union (mIoU) of 78.63% and 81.06% respectively on the Cityscapes and CamVid traffic scene public datasets.It can achieve a trade-off between segmentation accuracy and model size in traffic scene semantic segmentation and has a good application prospect.…”
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23612
Low-Cost Solution for Assessment of Urban Flash Flood Impacts Using Sentinel-2 Satellite Images and Fuzzy Analytic Hierarchy Process: A Case Study of Ras Ghareb City, Egypt
Published 2019-01-01“…Secondly, fuzzy the analytical hierarchy process (FAHP) method and a geographical information system (GIS) are integrated for flood risk analysis and evaluation in the flood-prone area. Finally, such a flood vulnerability map is used as an index to assist the decision-makers prepare for probable flooding. …”
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23613
A Simulation Study for Optimal Pinhole Collimator Design in Gamma Camera Systems
Published 2024-12-01“…There were distinct variations in sensitivity and spatial resolution depending on changes in the magnification factor as well. Finally, by analyzing trade-off curves, 1.38±0.081 mm was approximately the optimal pinhole diameter for our proposed system. …”
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23614
Preconcentration of Trace Amounts of Pb(II) Ions without Any Chelating Agent by Using Magnetic Iron Oxide Nanoparticles prior to ETAAS Determination
Published 2012-01-01“…The relative standard deviation of seven replicate measurements of 0.05 ng mL−1 of Pb(II) ions was 3.8%. Finally, the method was successfully applied to extraction and determination of lead ions in the water and standard samples.…”
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23615
Offline prompt reinforcement learning method based on feature extraction
Published 2025-01-01“…In order to understand the dependencies in the sequence more accurately, we also divide the fixed-size state information blocks in the input trajectory, extract the features of the segmented sub-blocks respectively, and finally encode the whole sequence into the GPT model to generate decisions more accurately. …”
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23616
DCFE-YOLO: A novel fabric defect detection method.
Published 2025-01-01“…Second, a Channel Priority Convolutional Attention mechanism is incorporated after the Spatial Pyramid Pooling layer to enable more precise defect localization by leveraging multi-scale structures and channel priors. Finally, the feature fusion network integrates Partial Convolution and Efficient Multi-scale Attention, optimizing the fusion of information across different feature levels and spatial scales, which enhances the richness and accuracy of feature representations while reducing computational complexity. …”
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23617
UPFC Subsynchronous Oscillation Suppression Strategy Based on Linear Active Disturbance Rejection Control
Published 2025-02-01Subjects: “…double-fed wind farm|series-compensated transmission lines|sub-synchronous oscillation(sso)|linear active disturbance rejection control(ladrc)…”
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23618
Structural insights into isoform-specific RAS-PI3Kα interactions and the role of RAS in PI3Kα activation
Published 2025-01-01“…Notably, in the RAS-p110α complex structures, RAS interaction with p110α is limited to the RAS-binding domain and does not involve the kinase domain. This study underscores the pivotal role of the RAS-PI3Kα interaction in PI3Kα activation and provides a blueprint for designing PI3Kα isoform-specific inhibitors to disrupt this interaction.…”
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23619
Frk positively regulates innate antiviral immunity by phosphorylating TBK1
Published 2025-02-01“…In this study, we validated the function of Fyn-related kinase (Frk) in the antiviral innate immune response and identified the direct target molecule of Frk in the IFN-β signaling pathway. …”
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23620
A Spiritual Care Program for Patients With Cancer and Psychosomatic Disorders in Iran: A Protocol Study
Published 2024-12-01“…Then, the opinions of a panel of experts will be used to finalize the content and assess the quality of the designed program using the appraisal of guidelines for research and evaluation instrument II (AGREE II) tool. …”
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