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11381
Multi‐Hour‐Ahead Dst Index Prediction Using Multi‐Fidelity Boosted Neural Networks
Published 2023-04-01“…Abstract The Disturbance storm time (Dst) index has been widely used as a proxy for the ring current intensity, and therefore as a measure of geomagnetic activity. …”
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11382
Evaluation of Ultrasonic Nonlinear Characteristics in Heat-Treated Aluminum Alloy (Al-Mg-Si-Cu)
Published 2013-01-01“…After the ultrasonic test, tensile strengths and elongations were obtained by the tensile test to compare with the parameter β. The heating time showing a peak in the parameter β was identical to that showing critical change in the tensile strength and elongation, and such peak appeared at the earlier heating time in the higher heating temperature. …”
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11383
Thirty-Year Periodicity of Cosmic Rays
Published 2012-01-01“…On the basis of periodicities of the 10Be time series (using data from both the South and North Poles) and the 14C time series (with data from Intercal-98), we offer evidence of the existence of cosmic ray fluctuations with a periodicity of around 30 years. …”
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11384
Topology control of satellite networks for multi-layer and multi-domain mega-constellation
Published 2024-07-01“…The results show that the proposed topology description model can improve the real-time and accuracy of the topology control process for mega-constellation satellite networks.…”
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11385
Synthesis and Characterization of Hydrogel-Based Hyaluronic Acid-Chitosan-Allium sativum Extract for Intraperitoneal Antiadhesion Application
Published 2023-01-01“…Several barriers are made to prevent adhesions, including liquid barriers such as sodium hyaluronate and carboxymethyl cellulose (CMC) but are fast absorbed-time hydrogel. The solid barrier has weakness of difficulty in covering all parts of the wound surface. …”
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11386
VIBRATION MEASUREMENT METHOD OF WIND TURBINE BLADE BASED ON BINOCULAR PHOTOGRAM METRY
Published 2020-01-01“…The vibration images sequence of the blade was acquired synchronously by two cameras and the target was segmented by adaptive binary dynamic threshold method,the direction with fastest grayscale gradient of the coding point as the edge,the circle curve was fitted by the least squares and iterative method,and the precise suppixel central coordinates of the coding point in the dynamic consecutive images were obtained by the gray square centroid method.Each coding point is similar to a small "displacement transducer"that reflects the blade’s time domain vibration response.Finally,the blade’s natural modal frequency was obtained from the time domains response,and compared with the results of the finite element and Laser Doppler Vibrometry,the relative error of vibration frequencies less than 5%,which verified the reliability and effectiveness of binocular photogrammetry method.…”
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11387
Cruising for Parking with Autonomous and Conventional Vehicles
Published 2021-01-01“…We show that (i) CVs park closer to the downtown zone in order to minimize their walking distance, whereas AVs park farther away from the downtown zone to minimize their parking search time, (ii) AVs experience a lower search time than CVs, and (iii) higher AV penetration rates reduce travel costs for both AVs and CVs.…”
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11388
Redactable blockchain supporting trapdoor revocation and limited number of redactions
Published 2023-07-01“…Aiming at the problem that although the existing redactable blockchain schemes that support trapdoor revocation could revoke the redaction permissions of trapdoor holders, but they were unable to limit the number of redactions using trapdoors, indicating an issue where the management of editing permissions was not adequately refined, a revocable chameleon hash with limited number of redactions was proposed, based on which a new redactable blockchain scheme was proposed.Specifically, the proposed scheme included a master trapdoor, a subordinate trapdoor, and the generated witness.The subordinate trapdoor was deployed for data modification, while the master trapdoor was employed to revoke the subordinate trapdoor, thus accomplishing the objective of revoking editing permissions.Meanwhile, the witness was developed to strictly limit the number of edits via the subordinate trapdoor to one time.The proposed scheme is proved to be secure under the standard complexity assumptions.Theoretical analysis and simulation experiments indicate that the proposed scheme has advantages in terms of security guarantee, when compared with the existing schemes supporting trapdoor revocation.At the same time it introduces little additional computation overhead, and thus has certain practicality.…”
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11389
Optimal Corridor Selection for a Road Space Management Strategy: Methodology and Tool
Published 2017-01-01“…The programming compares two conflicting objectives of system travel time and safety benefits to find an optimal solution.…”
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11390
The Relationship Between Online Socialization and Online Social Identity
Published 2023-01-01“…Therefore, this study examined the effects of internet addiction (IA) and the average time spent on social media (ATSM) (as online socialization) on OSI, and the mediate effect of the time spent on the internet when young people are together with their family members (TSIWTF). …”
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11391
Réécritures du mythe d’Orphée et enjeux esthétiques, philosophiques et formels dans The Mask of Orpheus de Harrison Birtwistle
Published 2008-02-01“…Different versions of the myth are introduced and sometimes we are presented with contradictory versions at the same time to force us to be active and aware of the existence of different kinds of dualities. …”
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11392
TWO-DIMENSIONAL MODELING OF CAR RELIABILITY DURING WARRANTY PERIOD
Published 2023-12-01“…The two-dimensional distribution of the time and mileage of failure-free exploitation is estimated. …”
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11393
Burnout among nurses practicing in critical care units: Predicting the contributing factors
Published 2025-01-01“…Conclusion: Anxiety, stress, alarm fatigue, depression, and time span are the most influential factors in the development of burnout. …”
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11394
Reconstruction of sparse check matrix for LDPC at high bit error rate
Published 2021-03-01“…In order to reconstruct the sparse check matrix of LDPC, a new algorithm which could directly reconstruct the LDPC was proposed.Firstly, according to the principle of the traditional reconstruction algorithm, the defects of the traditional algorithm and the reasons for the defects were analyzed in detail.Secondly, based on the characteristics of sparse matrix, some bit sequences in code words were randomly extracted for Gaussian elimination.At the same time, in order to reliably realize that the extracted bits sequence could contain parity check nodes, the multiple random variables were determined based on the probability of containing check nodes in one extraction.Finally, the statistical characteristics of LDPC under the suspected check vector was analyzed.Based on the minimum error decision rule, the sparse check vector was determined.The simulation results show that the rate of reconstruction of most LDPC in IEEE 802.11 protocol can reach more than 95% at BER of 0.001, and the noise robustness of the proposed method is better than that of the traditional algorithm.At the same time, the new algorithm not only does not need sparseness of parity check matrix, but also has the good performance for both diagonal and non-diagonal check matrix.…”
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11395
Peer effects among friends on students' cognitive abilities: An analysis based on emotional distance.
Published 2025-01-01“…In other words, to align with their friends, students increase their study time, raise their educational aspirations, and minimize instances of skipping classes and absenteeism. …”
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11396
Research on Energy Efficiency Management of Forklift Based on Improved YOLOv5 Algorithm
Published 2021-01-01“…Based on machine vision, the paper proposes a method to count the amount of goods loaded and unloaded within the working time limit to analyze the efficiency of the forklift. …”
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11397
On Nonlinear Simulation Methods and Tools for Evaluating the Performance of Ships and Offshore Structures in Waves
Published 2012-01-01“…This paper describes the development of alternative time domain numerical simulation methods for predicting large amplitude motions of ships and floating structures in response to incoming waves in the frame of potential theory. …”
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11398
Research on the Meteorological Prediction Algorithm Based on the CNSS and Particle Swarm Optimization
Published 2021-01-01“…Considering that the global navigation satellite system (GNSS) has the influence of positioning and atmospheric signals from time to time in meteorology, errors caused by moisture, and so on in the effect of the propagation path, these factors have led to the influence of various indexes of meteorological factors. …”
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11399
Le méthaniseur et le paysage
Published 2021-09-01“…A definition of the landscape that therefore involves at the same time the actor-network theories and the sociological interactionist approach (Le Breton, 2012). …”
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11400
Joint Position and Velocity Estimation of a Moving Target in Multistatic Radar by Bistatic Range, TDOA, and Doppler Shifts
Published 2019-01-01“…Estimation accuracy is improved by using bistatic range (BR), time-difference-of-arrival (TDOA), and Doppler shifts. …”
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