A5107143533- Advanced machining processes and optimization
- Advanced Measurement and Metrology Techniques
- Advanced Surface Polishing Techniques
- Manufacturing Process and Optimization
- Advanced Algorithms and Applications
- Advanced Sensor and Control Systems
- Hydraulic and Pneumatic Systems
- Neural Networks Stability and Synchronization
- Advanced Measurement and Detection Methods
- Tribology and Lubrication Engineering
- Drilling and Well Engineering
- Soft Robotics and Applications
- Industrial Technology and Control Systems
- Advanced Machining and Optimization Techniques
- Face and Expression Recognition
- Non-Destructive Testing Techniques
- Recycling and utilization of industrial and municipal waste in materials production
- Iterative Learning Control Systems
- Stability and Control of Uncertain Systems
- Simulation and Modeling Applications
- Vibration Control and Rheological Fluids
- Optical measurement and interference techniques
- Metal Alloys Wear and Properties
- Welding Techniques and Residual Stresses
- Hydraulic Fracturing and Reservoir Analysis
Dalian University of Technology
2015-2024
Jimei University
2007-2024
Jingdezhen Ceramic Institute
2019-2024
Tsinghua University
2022
Shandong University of Science and Technology
2019-2021
Huazhong University of Science and Technology
2021
Ritsumeikan University
2021
Beijing Satellite Navigation Center
2020
Beijing Institute of Technology
2020
Southwest Petroleum University
2014-2019
This paper introduces a new open-source speech corpus named "speechocean762" designed for pronunciation assessment use, consisting of 5000 English utterances from 250 non-native speakers, where half the speakers are children.Five experts annotated each at sentence-level, wordlevel and phoneme-level.A baseline system is released in open source to illustrate phoneme-level workflow on this corpus.This allowed be used freely commercial non-commercial purposes.It available free download OpenSLR,...
Abstract Reverse osmosis (RO) desalination is the dominant technology worldwide. The exergetic efficiency—which recognized as a true measure from thermodynamic viewpoint—of RO systems has been addressed by many researchers, but inconsistencies in existing definitions prevent not only objective evaluation of performance an individual system, also logical comparison results among different and studies. Strictly following exergoeconomic principles, this study presents general consistent...
ABSTRACT Twisted and coiled polymer (TCP) is a promising linear artificial muscle fabricated from nylon or other polymeric fibers, whose geometric structure similar to coil spring. TCP actuated reversibly with negative coefficients of thermal expansion. Twisting, coiling, annealing are the main fabricating procedures. Annealing key process form muscles stable performance. To modify enhance actuation performance, it necessary explore reveal influences on (contraction strain, nominal modulus,...
The Lyapunov-Krasovskii functional (LKF) method is an effective tool to obtain delay-dependent stability criteria of time-varying delay systems. However, in the method, requirement that there must exist appropriate LKF for a system with varying interval too strict and may lead considerable conservativeness. In order get less conservative criteria, novel analysis called delay-mode-based (DMBLKF) first presented nonlinear Compared main advantage DMBLKF lies relaxing aforementioned leading...
摘要: 机床在内外热源共同作用下产生热变形,严重影响机床的精度稳定性与零件加工精度,如何抑制机床热误差是一个重要的研究领域。介绍了机床热误差避免方法和热误差补偿方法的研究进展。分析了直线进给轴误差的成因,并阐述了有/无预紧条件下丝杠热变形过程及机理。介绍了温度测点位置优化方法,以及数据驱动与机理驱动的热误差建模理念、方法及特点。介绍了旋转进给轴热误差测试方法,并给出了其建模及补偿效果。最后,对进给轴热误差补偿技术研究进行了展望。
Point cloud registration is very important for workpiece positioning and error evaluation. Generally, the Iterative Closest Points (ICP) algorithm always adopted as first choice in fine registration, but requires a more appropriate initial condition to avoid falling into local minimum. As result, ICP shows poor robustness adaptability when dealing with point measuring noise outliers, complex surface, far distance between measured design. In this research, an improved method developed based...
Existing 3-D structured light (SL) scanning methods require a high number of images (multifrequency phase shifting, MF-PS) or embed signals in the space domain (space modulation SDM-PS) to conduct unwrapping. These are either movement sensitive (for low accuracy SDM-PS). In this work, new SL method is proposed use theoretical minimum three only. Unlike existing that directly domain, assistance modulated PS images, inspired by phase-shift keying (PSK) theory. Phase calculation shifting...
To understand the thermal behavior of spindle, radial drift errors (RTDEs) spindle are tested in this paper. analyze influence environmental temperature to RTDEs, RTDEs at 0 r/min. Afterward, and values key points different speeds. The deformation process is analyzed verified by imaging testing. RTDE models ten deformations established. Also, relationship between compensation value tool length, determination criterion deformations, algorithm flow, parameter identification presented using an...