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17181
Interval Shannon Wavelet Collocation Method for Fractional Fokker-Planck Equation
Published 2013-01-01“…Then, combining with the finite difference technology, a new numerical method for the time fractional partial differential equation is constructed. A simple Fokker-Planck equation is taken as an example to illustrate the effectiveness by comparing with the Grunwald-Letnikov central difference approximation (GL-CDA).…”
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17182
Natural Frequency Analysis of Permanent Magnet Eddy Current Couplings Based on the Riccati Transfer Matrix Method
Published 2024-06-01“…In order to improve the accuracy of natural frequency analysis and calculation for the coupling rotor system, a transfer matrix method is proposed to construct a dynamic analysis model of the rotor when conducting modal characteristics research on permanent magnet eddy current couplings. …”
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17183
Optimal Collision Energy for Higgs Precision Measurements at the ILC250
Published 2024-01-01“…The chi-squared functions we will construct exploit the new Lorentz structures present in our Lagrangian, making use of the different angular distribution predicted by this theory, and in particular of its energy dependence. …”
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17184
VB-Based Gaussian Sum Cubature Kalman Filter for Adaptive Estimation of Unknown Delay and Loss Probability
Published 2024-01-01“…Then, the expression of the likelihood function is reformulated as a mixture of multiple Gaussian distributions, and the cubature rule is used to improve the estimation accuracy under the framework of Gaussian sum filter in the process of time update. Finally, by constructing a hierarchical Gaussian model, the unknown and time-varying measurement delay and loss probability are estimated in real time with the state jointly using the VB method in the measurement update stage. …”
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17185
Autorégulation, rapport à l’écrit et performance : analyse d’une activité rédactionnelle en français langue étrangère à l’université
Published 2020-11-01“…The results show a high link between the student's writing performance and the strategies they use to manage their writing. In addition, a constructive relation to writing seems to facilitate an effective management of the editorial processes by systematically alternating planning (outlining) and other revision steps. …”
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17186
Using the Theory of Planned Behavior to Understand Traffic Violation Behaviors in E-Bike Couriers in China
Published 2021-01-01“…All of the belief composites had strong direct impacts on their respective TPB constructs. Salient beliefs were applied to develop effective intervention strategies. …”
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17187
Housing Price Appreciation Effects of Elevator Installation in Old Residential Areas: Empirical Evidence Based on a Multiperiod DID Model
Published 2022-01-01“…Based on the transaction data of second-hand houses in old residential areas with elevators installed in Beijing from 2016 to 2021, a multiperiod DID model is constructed to measure the appreciation effect, dynamic effect, and heterogeneity effect brought by the installation of elevators and to explore the mechanism of the appreciation effect. …”
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17188
Statistics release and privacy protection method of location big data based on deep learning
Published 2022-01-01“…Aiming at the problems of the unreasonable structure and the low efficiency of the traditional statistical partition and publishing of location big data, a deep learning-based statistical partition structure prediction method and a differential publishing method were proposed to enhance the efficacy of the partition algorithm and improve the availability of the published location big data.Firstly, the two-dimensional space was intelligently partitioned and merged from the bottom to the top to construct a reasonable partition structure.Subsequently, the partition structure matrices were organized as a three-dimensional spatio-temporal sequence, and the spatio-temporal characteristics were extracted via the deep learning model in a bid to realize the prediction of the partition structure.Finally, the differential privacy budget allocation and Laplace noise addition were implemented on the prediction partition structure to realize the privacy protection of the statistical partition and publishing of location big data.Experimental comparison of the real location big data sets proves the advantages of the proposed method in improving the querying accuracy of the published location big data and the execution efficiency of the publishing algorithm.…”
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17189
The Influence Mechanism of Different Cash Flow Availability on R&D Investment: Evidence from China
Published 2022-01-01“…On this basis, a dynamic R&D investment model is constructed, and the relevant data for Chinese listed firms are used for the empirical research. …”
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17190
Measuring. Monitoring. Management. Control
Published 2024-12-01“…The article is devoted to the development of constructive and technological methods for ensuring the temporal and parametric stability of films and film structures formed on metal–film sensors of physical quantities. …”
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17191
CREEP RELIABILITY ANALYSIS OF TURBINE BLISK BASED ON DUAL RESPONSE SURFACE METHOD
Published 2019-01-01“…The gas temperature, material density, elastic modulus and working rotation speed of the blisk structure were select as input variables. By constructing the finite element model of the blisk and the thermal-structural coupling analysis method, the stress and strain of turbine blisk were obtained. …”
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17192
Reprezentacje obiektów przyrodniczych z dziecięcej perspektywy
Published 2021-06-01“…We were interested also in children’s methods of categorization (recognizing an object at various levels of abstraction) and constructing knowledge in terms of selected domains (appearance, environment, behavior and the relationship between animals and humans). 170 children of two age groups (3/4 and 4/5 years old) participated in the study. …”
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17193
Time-Dependent Reliability-Based Design Optimization Utilizing Nonintrusive Polynomial Chaos
Published 2013-01-01“…According to Archard’s wear law, a multidiscipline reliability model including the kinematics model and the structural finite element (FE) model is constructed to generate the stochastic processes of system responses. …”
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17194
OPTIMIZATION AND POST-BUCKLING ANALYSIS OF A LONG SHAFT ROTOR SYSTEM WITH PINNED-STABILIZED SUPPORTED AT ARBITRARY POSITION
Published 2018-01-01“…The lower-order polynomials are introduced to construct Ritz basis to analyze the critical rotational velocity of the system and the optimal position of the stabilized support. …”
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17195
DDoS attack detection and defense based on hybrid deep learning model in SDN
Published 2018-07-01“…Software defined network (SDN) is a new kind of network technology,and the security problems are the hot topics in SDN field,such as SDN control channel security,forged service deployment and external distributed denial of service (DDoS) attacks.Aiming at DDoS attack problem of security in SDN,a DDoS attack detection method called DCNN-DSAE based on deep learning hybrid model in SDN was proposed.In this method,when a deep learning model was constructed,the input feature included 21 different types of fields extracted from the data plane and 5 extra self-designed features of distinguishing flow types.The experimental results show that the method has high accuracy,it’s better than the traditional support vector machine (SVM) and deep neural network (DNN) and other machine learning methods.At the same time,the proposed method can also shorten the processing time of classification detection.The detection model is deployed in SDN controller,and the new security policy is sent to the OpenFlow switch to achieve the defense against specific DDoS attack.…”
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17196
Research on resource allocation algorithm of centralized and distributed Q-learning in machine communication
Published 2021-11-01“…Under the premise of ensuring partial machine type communication device (MTCD)’s quality of service (QoS) requirements, the resource allocation problem was studied with the goal of maximizing system throughput in the massive machine type communication (mMTC) scenario.Two resource allocation algorithms based on Q-learning were proposed: centralized Q-learning algorithm (team-Q) and distributed Q-learning algorithm (dis-Q).Firstly, taking into account MTCD’s geographic location and multi-level QoS requirements, a clustering algorithm based on cosine similarity (CS) was designed.In the clustering algorithm, multi-dimensional vectors that represent MTCD and data aggregator (DA) were constructed, and MTCDs can be grouped according to the CS value between multi-dimensional vectors.Then in the MTC network, the team-Q learning algorithm and dis-Q learning algorithm were used to allocate resource blocks and power for the MTCD.In terms of throughput performance, team-Q and dis-Q algorithms have an average increase of 16% and 23% compared to the dynamic resource allocation algorithm and the greedy algorithm, respectively.In terms of complexity performance, the dis-Q algorithm is only 25% of team-Q algorithm and even below, the convergence speed is increased by nearly 40%.…”
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17197
Sword of Heaven : Political Theology in Measure for Measure
Published 2001-01-01“…If Shakespeare editions have been slow to absorb the news from Vienna that the schizophrenia of Measure for Measure is a result not of authorial despair, but of its having been constructed by two dramatists of distinct generations and mentalities, working some sixteen years apart, they have nonetheless always registered resistance in the play to this totalitarian project of putting power on display.…”
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17198
Manufacture of a chitosan-based bioink with gelatin and hydroxyapatite and its potential application in 3D bioprinting
Published 2025-03-01“…These bioinks are composed of biomaterials that provide structural integrity and are synthesized from organic polymers to enhance biocompatibility with the printed constructs. In this study, a series of eleven chitosan-based bioinks were synthesized using the sol-gel technique, employing chitosan of low and medium molecular weight. …”
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17199
ISOGEOMETRIC ANALYSIS OF STRESS INTENSITY FACTOR IN V-NOTCHED PLANE
Published 2022-01-01“…Based on the isogeometric analysis, which discretizes the overall structure and constructs the stiffness matrix of the structure, obtains the equilibrium equation, and simultaneously obtains the coordinate information of the nodes. …”
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17200
Analysis on the Relationship between Financing Constraints and Research and Development from the Perspective of the Location of Top Management Network
Published 2022-01-01“…Taking listed Chinese companies during 2009–2019 as objects, this paper constructs a multivariate discriminant model to measure the degrees of multiple financing constraints and establishes empirical models to analyze the non-linear relationship between the financing constraints and research and development (R&D) investment. …”
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