-
2661
Intelligent transportation systems: A survey on modern hardware devices for the era of machine learning
Published 2022-09-01“…To alleviate the difficulties faced in the non-trivial task of selecting suitable ML techniques and MHDs for an ITS with a specific complexity level, a performance evaluation framework is proposed. …”
Get full text
Article -
2662
SegTrackDetect: A window-based framework for tiny object detection via semantic segmentation and tracking
Published 2025-05-01“…SegTrackDetect is optimized with inference speed in mind, offering a highly efficient pipeline while providing users with the flexibility to customize models. …”
Get full text
Article -
2663
Thermodynamic Characteristics of the Ion-Exchange Process Involving REMs of the Light Group
Published 2025-07-01“…The study considers the use of anion- and cation-exchange resins with different functional groups for efficient and environmentally safe REM separation. …”
Get full text
Article -
2664
Seeing Beyond Noise: Improving Cryptocurrency Forecasting with Linear Bias Correction
Published 2024-12-01“…The proposed methodology includes collecting cryptocurrency data and precious metal data from Coindesk and BullionVault, respectively, and then finding the optimal model input combination for each cryptocurrency by lag adjustment and correlating feature selection. Hyperparameter tuning was performed by trial-and-error technique, and an early stopping function was applied to minimize time and space complexity. …”
Get full text
Article -
2665
Research on key technologies of safety monitoring data sharing for railway engineering construction based on blockchain
Published 2021-08-01“…In order to solve the problems that the monitoring data was easy to be tampered with in the process of railway engineering construction safety monitoring, and the authenticity of the data might be questioned during the accountability of accidents, a blockchain-based railway engineering construction safety monitoring data sharing model was proposed.The characteristics of automatic execution of smart contracts ensured the transparency of the process of monitoring data on the chain.In the PBFT algorithm, there was a problem that the Byzantine nodes and the normal nodes were selected as the master node with the same probability, a reputation-based practical Byzantine fault tolerance algorithm was proposed.Streaming data on the chain might cause network congestion, which simplified the consensus protocol and reduced the time complexity from O(n<sup>2</sup>) to O(n).A comparative experiment was conducted using Hyperledger Caliper to prove that the delay of the improved algorithm is lower than PBFT algorithm, and the throughput is higher than PBFT algorithm.A quantitative analysis of the possibility of attack and the probability of successful attack was carried out, and it was determined that the smart contract provides tamper-proof modification for the monitoring data on the chain.Comparative analysis proves that the proposed blockchain-based railway engineering construction safety monitoring data sharing model is good than other models in terms of consensus efficiency, TPS and block generation speed.…”
Get full text
Article -
2666
Research on key technologies of safety monitoring data sharing for railway engineering construction based on blockchain
Published 2021-08-01“…In order to solve the problems that the monitoring data was easy to be tampered with in the process of railway engineering construction safety monitoring, and the authenticity of the data might be questioned during the accountability of accidents, a blockchain-based railway engineering construction safety monitoring data sharing model was proposed.The characteristics of automatic execution of smart contracts ensured the transparency of the process of monitoring data on the chain.In the PBFT algorithm, there was a problem that the Byzantine nodes and the normal nodes were selected as the master node with the same probability, a reputation-based practical Byzantine fault tolerance algorithm was proposed.Streaming data on the chain might cause network congestion, which simplified the consensus protocol and reduced the time complexity from O(n<sup>2</sup>) to O(n).A comparative experiment was conducted using Hyperledger Caliper to prove that the delay of the improved algorithm is lower than PBFT algorithm, and the throughput is higher than PBFT algorithm.A quantitative analysis of the possibility of attack and the probability of successful attack was carried out, and it was determined that the smart contract provides tamper-proof modification for the monitoring data on the chain.Comparative analysis proves that the proposed blockchain-based railway engineering construction safety monitoring data sharing model is good than other models in terms of consensus efficiency, TPS and block generation speed.…”
Get full text
Article -
2667
Primary user characterization for cognitive radio wireless networks using long short-term memory
Published 2018-11-01“…In the decision-making stage, the best available channel is selected for transmitting secondary user data in an opportunistic fashion, and the success of that stage depends on the efficiency of the primary user characterization model. …”
Get full text
Article -
2668
Advanced fault detection methodologies and communication protocols for DC micro grid -A technical review
Published 2025-03-01“…This critical study provides valuable information for researchers and professionals aiming to refine fault detection and isolation methods and improve the efficiency of DC microgrid systems.…”
Get full text
Article -
2669
Thinned Virtual Array for Cramer Rao Bound Optimization in MIMO Radar
Published 2021-01-01“…As an important performance indicator of DOA estimation, Cramer–Rao Bound (CRB) is closely connected to the array configuration of the system. To reduce the complexity of the system and improve CRB performance at the same time, in this paper, the virtual array of MIMO radar is designed directly by selecting outputs from matched filters at the receive side. …”
Get full text
Article -
2670
Algorithm for solution of multicriterion problem of production planning of pipes and shaped products
Published 2019-02-01“…One of the modern directions of increase in economic efficiency of the enterprise is a production planning automation, including the automated scheduling of production. …”
Get full text
Article -
2671
Construction of Analogy Indicator System and Machine-Learning-Based Optimization of Analogy Methods for Oilfield Development Projects
Published 2025-08-01“…Oil and gas development is characterized by high technical complexity, strong interdisciplinarity, long investment cycles, and significant uncertainty. …”
Get full text
Article -
2672
Hybrid precoding and power allocation for mmWave NOMA systems based on time delay line arrays
Published 2022-06-01“…Methods:To reduce inter-user interference,an improved K-means algorithm is proposed to group users and select a cluster head for each group of users, which maximizes the correlation of user channels in the same cluster and reduces the correlation between users in different clusters as much as possible;Then,a low-complexity analog precoding is designed to maximize the array gain of the antenna based on the relevant user channel matrix composed of the cluster head set, followed by a digital precoding designed to eliminate inter-user interference with the maximum equivalent channel gain between beams using a forced-zero technique; Finally, an EE maximization problem is formed to optimize the transmit power under users'quality of services and total transmit power constraints,and a two-layer iterative algorithm is proposed for the resulting non-convex optimization problem. …”
Get full text
Article -
2673
Clinical application of metagenomic next-generation sequencing in etiologic diagnosis of severe pneumonia in adults
Published 2025-04-01“…Meanwhile, conventional methods were used for pathogen detection of blood, urine and throat swab specimens. The detection efficiencies of different methods were compared and the associated pathogen profiles were analyzed.ResultsAmong the 132 patients, there were 92 males and 40 females, with a total of 52 deaths. …”
Get full text
Article -
2674
Fabrication of Fe3O4@UiO-66-NH2-QCA-CuCl2 nanocomposites as a novel magnetic metal–organic framework catalyst for sustainable synthesis of 2,3-diarylquinolines
Published 2025-07-01“…This hybrid catalyst was applied in the efficient synthesis of 2,3-dihydroquinoline derivatives through a three-component reaction involving aryl aldehydes, aryl amines, and aryl epoxides in an ionic liquid solvent. …”
Get full text
Article -
2675
Characterization and application of flow heterogeneity in high water cut reservoirs
Published 2025-04-01“…It highlighted the complexity of flow heterogeneity evaluation and emphasized the necessity of quantitative evaluation. …”
Get full text
Article -
2676
Glycogen is a neutral cargo of bulk autophagy in Komagataella phaffii
Published 2025-12-01“…Both homologous and heterologous markers of glycogen are delivered to the vacuole and degraded with efficiencies that are independent of glycogen, suggesting that glycogen is a neutral cargo of bulk autophagy. …”
Get full text
Article -
2677
Constitutive model of metal rubber material considering plastic accumulation behavior
Published 2025-01-01“…This distinctive structural configuration enables efficient mechanical energy dissipation under dynamic loading conditions through multiple synergistic mechanisms, including inter-coil dry friction, elastic bending deformation, and plastic deformation.…”
Get full text
Article -
2678
Mono‐Ethyl‐Phosphonates: Functional Group Masking Strategy to Stabilize and Optimize the Pharmacokinetics of Rare Earth Radiochelates
Published 2025-07-01“…Spectrophotometric studies reveal reduced thermodynamic stability for [Sc(L2‐Et)] and [Lu(L2‐Et)] when compared with their phosphonate parent complexes. Radiolabeling with 44Sc and 177Lu remains efficient at ≤ 40 °C (155‐906 mCi μmol−1) with corresponding radiochelates remaining >87% and >98% inert in plasma after one isotope half‐life. …”
Get full text
Article -
2679
Enhanced Mainlobe Jamming Suppression in Distributed Array Radar via Joint Optimization of Radar Positions and Subpulse Frequencies
Published 2025-07-01“…This mapping enables efficient optimization of radar positions across the designated frequency band. …”
Get full text
Article -
2680
Dosimetric comparison of VMAT plans in preoperative short-course rectal radiotherapy
Published 2024-12-01“…We assessed SCRT plans using volumetric-modulated arc therapy (VMAT) with Halcyon and Infinity medical linear accelerators (Linacs) and compared the plan quality and delivery efficiency across all cases. Thirty patients who underwent preoperative SCRT for LARC at the hospital were randomly selected. …”
Get full text
Article