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2561
Histoire, architecture et mémoire au seuil de la prison : dispositifs scénographiques et enjeux patrimoniaux au castelet à Toulouse au XXIe siècle
Published 2024-01-01“…The architectural history of the vast Saint-Michel prison in Toulouse is rich : studied under the Second Republic, then built under the Second Empire, its originality lies in its plan, which takes up the radial typology, a variation of English and American models that favored individual confinement, but adapted to imperial prison theories, which favored confinement by categories. …”
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2562
THE EFFECT OF CLEARANCE BETWEEN INTERNAL SPLINE AND EXTERNAL SPLINE ON LOAD SHARING CHARACTERISTICS OF A PLANETARY GEAR TRAIN
Published 2021-01-01“…Taken a 5-planetary gear transmission system as an example,its load sharing coefficients with different radial clearance of a spline are calculated by the lumped-mass method. …”
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2563
Simulation and Experimental Analysis of Stiffness and Damping of the Waist Type Diaphragm Coupling
Published 2024-04-01“…Based on Ansys finite element simulation software, considering contact nonlinearity and large deformation effects, this study simulates and analyzes the torsional, axial, angular and radial static stiffness characteristics and torsional and axial dynamic characteristics of the diaphragm coupling, and analyzes the influence of the diaphragm structure parameters such as the diameter of the bolt hole distribution circle, the diameter of the bolt hole, the minimum width of the diaphragm and the thickness of the diaphragm on the static stiffness. …”
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2564
Influence of the Curvature Radius on Contact Characteristic of Deep Groove Ball Bearing
Published 2016-01-01“…Furthermore,the volatility and contact force of DGBB between the rolling element and inner or outer ring have the similar size,which basically the same with the radial load value,but the force between rolling element and maintains is small.…”
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2565
Optimizing Design of the Structure of Interior Lubrication Shift Gear Pump in Automatic Transmission
Published 2017-01-01“…Based on hydraulic automatic transmission design,according to the structural characteristics of the radial outer engaging in parallel multi-tooth gear pump,an internal study for trapped oil phenomena encountered in the process of their work,the causes and solutions are analyzed. …”
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2566
Analysis of Thermal-structural Coupling Characteristic of Friction Pair of Single Cone Ring Synchronizer
Published 2020-12-01“…The temperature of the friction pair decreases along the axial and radial direction,and distributes uniformly along the circumferential direction.…”
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2567
RESEARCH ON DYNAMIC CHARACTERISTICS OF WIND TURBINE MAIN SHAFT BEARING UNDER DIFFERENT WORKING CONDITIONS
Published 2017-01-01“…In order to get the dynamic characteristics of wind turbinemain shaft bearing under different working conditions,tooka 1. 5 MW wind turbine manufactured by one turbine factoryas an example,the main shaftwassimplifiedabstractly and the axial and radial loadon main shaft bearingwere given by blade element theory. …”
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2568
Gradient descent Sarsa(?)algorithm based on the adaptive potential function shaping reward mechanism
Published 2013-01-01“…In the reinforcement leaning tasks with continuous state spaces,the algorithms are usually facing the problems of ill initial performance and low convergence speed.In order to solve these problems,the potential function shaping reward mechanism was proposed to improve the reinforcement learning algorithms.This mechanism propagates model knowledge to the learner adaptively in the form of the additional reward signal,so that the initial performance and convergence speed could be improved effectively.In view of the good performance and existing problems of the radial basis function (RBF) network,the adaptive normalized RBF (ANRBF) network was put forward to use as a potential function to generate the shaping rewards.A gradient descent (GD)algorithm named ANRBF-GD-Sarsa(?) …”
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2569
The Study of Nebular Emission on Nearby Spiral Galaxies in the IFU Era
Published 2013-01-01“…Here I review some highlights of our current studies employing this technique: (1) the case study of NGC 628, the largest galaxy ever sampled with an IFU; (2) a statistical approach to the abundance gradients of spiral galaxies, which indicates a universal radial gradient for oxygen abundance; and (3) the discovery of a new scaling relation of HII regions in spiral galaxies, the local mass-metallicity relation of star-forming galaxies. …”
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2570
Study on Relationship between Contact Stress Distribution Characteristic and Fatigue Spalling of Angular Contact Ball Bearing at High Speed
Published 2021-08-01“…On this basis, the axial force, the radial force and the speed of rotation are respectively controlled, and the distribution characteristics and changes of the contact stress of the bearing under special working conditions are studied, and the relationship between the variation of the external load and the speed of rotation and the fatigue spalling of the bearing is obtained, which provides certain technical guidance for reducing fatigue spalling of bearing.…”
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2571
Exoplanet science with SPIRou: near-infrared precision velocimetry and spectropolarimetry
Published 2023-03-01“…High-precision radial-velocity measurements in the near-infrared allow one to search for exoplanet signals around the lowest-mass stars, including young ones. …”
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2572
Comparative Study on Calculation Method of Contact Force in Joint with Clearance of Crank Slider Mechanism
Published 2021-02-01“…The analysis results show that when studying the influences of changes in radial clearance, driving load, and recovery coefficient on dynamics of multibody systems, both the Lankarani-Nikravesh contact force model and the ZhiYing-QiShao contact force model are relatively reliable, and the ZhiYing-QiShao contact force model is the least sensitive to the recovery coefficient.…”
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2573
A Multiquark Approach to Excited Hadrons and Regge Trajectories
Published 2019-01-01“…We show that our approach leads to an effective mass counting scheme for meson spectrum and results in the linear Regge and radial Regge trajectories by construction. An experimental observation of these trajectories might thus serve as evidence not for string but for multiquark structure of highly excited hadrons.…”
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2574
Sabot Front Borerider Stiffness vs. Dispersion: Finding the Knee in the Curve
Published 2001-01-01“…In the design of armor piercing, fin-stabilized, discarding sabot projectiles, the radial stiffness of the sabot front borerider has a significant impact on the projectile's dispersion and is, therefore, an important design consideration. …”
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2575
PARAMETRIC LEVEL SET METHOD-BASED TOPOLOGY OPTIMIZATION OF HEAT CONDUCTION STRUCTURES
Published 2018-01-01“…With the problems of complicated calculation process and lower computational efficiency in topology optimization using the traditional level set method(LSM) of heat conduction structures,parametric level set method(PLSM) is introduced into topology optimization for heat conduction structures.The compactly supported radial basis functions(CS-RBFs) are used to interpolate the initial level set function.The interpolation coefficients of CS-RBFs are proposed as the design variables,dissipation of heat transport potential capacity is adopted as the objective function,and the volume of material is used as the constraint.The topology optimization model for heat conduction structures is thus built.Because the method of moving asymptotes(MMA) is used to update the interpolation coefficients of CS-RBFs,the process of topology optimization for structures is transformed into that of updating interpolation coefficients and the optimal topology is finally obtained.Numerical examples show that the optimal results using PLSM are essentially in agreement with those of LSM optimal results,which illustrates the feasibility and validity of the proposed method.…”
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2576
Influence of the Pre-compression Amount of the Spring Excitation Segment on the Meshing Performance of the Spring Clutch
Published 2015-01-01“…The self-excitation of the spring clutch is realized through the pre-compression between the excitation coils at either end of the spring and housing to generate frictional torque to energize the spring.The pre-compression amount of excitation coils at either end of the spring has a great impact on the binding property and lifetime of spring clutch.The spring clutch dynamics model is established by using the finite element analysis method.On ABAQUS platform,the speed synchronization of high speed spring clutch output shell and the input shell,the Mises stress and radial displacement of spring under different pre-compression are solved,and then the pre-compression amount condition of the self-exciting meshing of the spring clutch is obtained,and it is compared with the critical amount of pre-compression of clutch obtained by the analytic solution.Besides,the finite element analysis results show that the steady state stress distribution of spring exhibits M shape,that is,the transition coils have peak stress while the middle coils have uniform stress distribution.The basis for optimal design of spring clutch can be provided.…”
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2577
OPTIMIZATION ANALYSIS OF LARGE DISPLACEMENT MOTORCYCLE SUSPENSION SYSTEM RIDING COMFORT BASED ON APPROXIMATE MODEL
Published 2022-01-01“…Sensitivity analysis and approximate modeling of related parameters were carried out, and the radial basis function neural network approximate model was used for multi-objective optimization, based on the error analysis of the approximate model. …”
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2578
Neural Network Based Adaptive Backstepping Control for Electro-Hydraulic Servo System Position Tracking
Published 2022-01-01“…To cope with this issue, an adaptive backstepping controller based on neural network (NN) is proposed in this paper. A radial-basis-function neural network (RBF NN) is constructed to approximate the lumped uncertainties caused by modeling uncertainties and external disturbances, where the adaptive law is adopted to adjust controller parameters online. …”
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2579
Performance Evaluation of China's Basic Pension Insurance Based on a Three-Stage Superefficient SBM-DEA Model
Published 2022-01-01“…Based on the SBM-DEA model with non-radial and non-angular outputs, the performance evaluation model of basic endowment insurance system was constructed using this index system. …”
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2580
Ground Motion and Air Overpressure Study
Published 1998-01-01“…A total of 210 explosive shots were monitored producing 2048 time histories of ground motions recorded in the vertical, radial, and transverse directions, in addition to recording air overpressures. …”
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