-
1701
Kinematic Analysis of a 3-DOF Parallel Polishing Manipulator
Published 2024-04-01“…Secondly, the kinematics equations of the mechanism are constructed based on the closed-loop vector method, the forward and inverse position solutions are analyzed, and the analysis results are preliminarily verified by concrete examples. …”
Get full text
Article -
1702
All-loop group-theory constraints for four-point amplitudes of SU(N), SO(N), and Sp(N) gauge theories
Published 2024-10-01“…For SU(N), we confirm the existence of four independent null vectors (for L ≥ 2) and for SO(N) and Sp(N), we establish the existence of seventeen independent null vectors (for L ≥ 5). …”
Get full text
Article -
1703
Kinematics Analysis of Rigid Flexible Coupling Elbow Joint Power Assisted Mechanism
Published 2022-02-01“…The degree of freedom is calculated based on the screw theory, the closed vector method is used for position analysis. The Matlab is used to draw the change curve of flexible cable length and flexible cable tension to obtain the flexible cable length and tension at different angles. …”
Get full text
Article -
1704
Infrastructure Planning: Intermediary of Indonesia’s Community Health in Climate Change Era (A Bibliometric Analysis)
Published 2025-02-01“…The impacts of climate change on human health include increases in respiratory, vector-borne, and zoonotic diseases. The research focuses on one aspect of supporting human health that is often ignored in the climate change adaptation process: infrastructure planning. …”
Get full text
Article -
1705
混合驱动凸轮连杆机械压力机的分析与仿真
Published 2010-01-01“…The significance of applying hybrid cam-linkage mechanism to mechanical press is expounded.This new type of mechanistic configuration for the hybrid cam-linkage mechanical press is proposed and its kinematic principle is analyzed.Using complex number vector method,the inverse kinematic analysis of this hybrid mechanism is carried out and the actual operating function that can meet the demand of processing techniques is worked out.Based on Pro/Mechanism,The mechanism motion simulation is done.The results show that the hybrid cam-linkage mechanical press can realize multiple motion specification and satisfy multi-technique request from slider velocity characteristics in the course of process.According to the structure analysis and simulation for hybrid seven-bar mechanism,the conclusion that compared to the hybrid seven-bar press,the hybrid cam-linkage press has the merits of easy link lengths restriction and good motion output is obtained.At last,the dynamic simulation model is designed,and the power distribution of the constant speed motor and the servo-motor is analyzed.…”
Get full text
Article -
1706
« L’architecture globale », une lecture dynamique des territoires dans la globalisation
Published 2013-07-01“…The comprehension of globalization through architectural and urban design seems to find its limits if we read it as a result, but sounds relevant if we analyse it as a process. We assume the existence of « worlding » vectors (processes) which can propel the territories on the global archipelago. …”
Get full text
Article -
1707
Between revolution and human rights: the testimonies of Brazilian exiles at the Russell Tribunal II
Published 2025-01-01“…This process exposed the limits to the idea of a purely individual aspect of suffering and the presumption of its incommunicable or unspeakable nature - both shown to be ways of silencing its political dimension.…”
Get full text
Article -
1708
Generation of Stationary Non-Gaussian Time Histories with a Specified Cross-spectral Density
Published 1997-01-01“…Next methods for generating vectors of random variables with a specified covariance matrix for a class of spherically invariant random vectors (SIRV) are discussed. …”
Get full text
Article -
1709
Adapting Military Doctrines to Shifting Power Dynamics in the International System: Looking Beyond Unipolarity through the Analyses of Charles Kupchan
Published 2024-12-01“…However, with the increase in asymmetric threats and diversity of actors in the aftermath of the 11 September attacks, this stabilization process has given way to uncertainties and multi-vector debates. …”
Get full text
Article -
1710
EDUCATIONAL MOTIVATION OF UNDERGRADUATE STUDENTS AS AN INDICATOR OF THE QUALITY OF EDUCATION
Published 2019-12-01“…The motivation as one of the key indicators of the quality of higher education, as a powerful driver of the educational process, and one of the main catalysts of personal and professional growth of the student has been considered. …”
Get full text
Article -
1711
Development of a Student Depression Prediction Model Based on Machine Learning with Algorithm Performance Evaluation
Published 2025-06-01“…The research implements a structured modeling process involving feature selection, normalization, the model’s efficacy was gauged through a suite of evaluate measures, encompassing accuracy, precision, recall, F1-score, The support vector machine (SVM) model’s accuracy improved from 58.8% to 99.5% after hyperparameter tuning. …”
Get full text
Article -
1712
Research of Conceptual Design and Kinematic Characteristic of a 3-PRS Parallel Kinematic Machine
Published 2019-01-01“…By solving the closed-loop vector motion equation,the analytical expression for the inverse kinematics solution of the proposed 3-PRS PKM is given. …”
Get full text
Article -
1713
Fault Diagnosis Method of Planetary Gearboxes Based on LMD Permutation Entropy and BP Neural Network
Published 2022-10-01“…In view of the problems of poor discrimination of fault feature vectors extracted in the process of fault diagnosis of planetary gearboxes and insufficient diagnosis success rate, a method based on Local Mean Decomposition(LMD) permutation entropy and BP neural network is proposed. …”
Get full text
Article -
1714
MILLING FORCE MODELING BASED ON EQUIVALENT TURNING FORCE AND OBLIQUE CUTTING FORCE MODEL (MT)
Published 2023-01-01“…The accuracy of traditional milling force prediction model is low, and it is difficult to provide effective support for the reasonable selection of process parameters in practical production, by synthetically considering the equivalent turning force model of working angle, cutting edge arc and radius of tool tip arc, in this model, the actual turning tool is equivalent to the ideal turning tool model to identify the material constant, the chip flow angle and the average friction angle in the material constitutive equation, according to the oblique cutting model, the shear stress on the main shear plane and the F<sub>0</sub> vector of the unit cutting force at different cutting speeds are calculated, thus the instantaneous cutting force on the front face of the end mill can be calculated, the three-dimensional cutting force of end mill in X-Y-Z coordinate system is obtained by coordinate transformation. …”
Get full text
Article -
1715
cDVAE: VAE-guided diffusion for particle accelerator beam 6D phase space projection diagnostics
Published 2024-11-01“…In this work, a generative conditional diffusion- based approach to creating a virtual diagnostic of all 15 unique 2D projections of a beam’s 6D phase space is developed. The diffusion process is guided by a combination of scalar parameters and images that are converted to low-dimensional latent vector representation by a variational autoencoder (VAE). …”
Get full text
Article -
1716
Computational intelligence in the identification of Covid-19 patients by using KNN-SVM Classifier
Published 2024-12-01“…We applied Principal Component Analysis (PCA) and Histogram of Gradients (HOG) as extract features. while we conducted a classification process using K nearest neighbors (KNN) and Support Vector Machine (SVM) algorithms . …”
Get full text
Article -
1717
Research on measurement of supply chain finance credit risk based on Internet of Things
Published 2019-09-01“…This article first expounds the concept of supply chain finance and its credit risk, describes the hierarchical structure of the Internet of Things and its key technologies, and combines the unique functions of the Internet of Things technology and the business process of the inventory pledge financing model to design the supply chain financial model based on the Internet of Things. …”
Get full text
Article -
1718
An Automatic Tagging System Focused on Digital Resources
Published 2020-06-01“…In this paper, we proposed a novel automatic tagging system which aimed at the lack of tags about digital resources and the difficulty of extending tags This tagging system can effectively extend tags for public cultural resources we collected and other public data sets The algorithm of tagging system based on neural network and generative learning We use Latent Dirichlet Allocation (LDA) and Word2Vec to process resources and initial tags, generating the representation vectors of resources and initial tags, then use these two kinds of vector to build this automatic tagging system focused on digital resources From the results, the Precision, MRR, MAP and other indexes of this method is better than other comparison tagging methods mentioned in this paper, and it can solve the lack of tags in some cases Increasing utilization of resources…”
Get full text
Article -
1719
Recoil electron polarization-dependent T-odd correlations in neutrino elastic scattering on polarized electron target
Published 2025-04-01“…We consider several experiments in which mixed products built of the recoil electron polarization and two other vector quantities (incoming neutrino momentum, its polarization, polarization of the electron target and outgoing electron momentum) can be identified. …”
Get full text
Article -
1720
A Study on the performance of Four Regression Models in Predicting Weather Temperature Based on Python
Published 2025-01-01“…This study assesses how well four regression models—linear regression, random forest regression, support vector regression (SVR), and K-Nearest Neighbors (KNN)—predict weather temperatures using a dataset from England. …”
Get full text
Article