Huafeng Ding

ORCID: 0000-0002-0567-2805
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Research Areas
  • Robotic Mechanisms and Dynamics
  • Manufacturing Process and Optimization
  • Mechanical Engineering and Vibrations Research
  • Mechanics and Biomechanics Studies
  • Dynamics and Control of Mechanical Systems
  • Optical Imaging and Spectroscopy Techniques
  • Digital Holography and Microscopy
  • Robot Manipulation and Learning
  • Advanced Fluorescence Microscopy Techniques
  • Hydraulic and Pneumatic Systems
  • Optical Coherence Tomography Applications
  • Optical measurement and interference techniques
  • Industrial Technology and Control Systems
  • Cellular Mechanics and Interactions
  • Advanced Numerical Analysis Techniques
  • Plasmonic and Surface Plasmon Research
  • Optical Polarization and Ellipsometry
  • Soft Robotics and Applications
  • Perovskite Materials and Applications
  • Robotics and Sensor-Based Localization
  • Piezoelectric Actuators and Control
  • Advanced biosensing and bioanalysis techniques
  • Graph Theory and Algorithms
  • Gear and Bearing Dynamics Analysis
  • Pelvic floor disorders treatments

Xuzhou Central Hospital
2024

Ludong University
2021-2023

China University of Geosciences
2015-2022

First Affiliated Hospital of Wannan Medical College
2022

China University of Geosciences (Beijing)
2021

Ministry of Education of the People's Republic of China
2019

Northwest University
2019

Yanshan University
2008-2019

Shanghai Jiao Tong University
2014

Chongqing University
2013

Fourier transform light scattering (FTLS) is a novel experimental approach that combines optical microscopy, holography, and for studying inhomogeneous dynamic media. In FTLS the phase amplitude of coherent image field are quantified propagated numerically to plane. Because it detects all scattered angles (spatial frequencies) simultaneously in each point image, can be regarded as spatial equivalent infrared spectroscopy, where temporal frequencies detected at moment time.

10.1103/physrevlett.101.238102 article EN Physical Review Letters 2008-12-03

Abstract An automatic design platform capable of structural analysis, synthesis and the application parallel mechanisms will be a great aid in conceptual mechanisms, though up to now such has only existed as an idea. The work this paper constitutes part platform. Based on screw theory new representation method proposed here which builds one-to-one correspondence between strings representative characters kinematic structures symmetrical (SPMs), develops fully-automatic approach for mobility...

10.5772/56380 article EN cc-by International Journal of Advanced Robotic Systems 2013-01-01

10.1016/j.mechmachtheory.2008.02.008 article EN Mechanism and Machine Theory 2008-03-21

We derive two mathematical relations between quantitative phase images of thin slices inhomogeneous media and the scattering parameters bulk, i.e., mean free path, ls, anisotropy factor, g. The ls turns out to be inversely proportional spatial variance shift, g is related gradient. These formulas, referred collectively as scattering-phase theorem, allow for extracting in a spatially resolved manner across an entire tissue section, that is, mapping large cross sections tissues terms

10.1364/ol.36.001215 article EN Optics Letters 2011-03-25

We employ Fourier-transform light scattering, a technique recently developed in our laboratory, to study the scattering properties of rat organ tissues. Using knowledge complex field associated with high-resolution microscope images tissue slices, we extracted mean-free path l(s) and anisotropy factor g, which characterize bulk for three different organs. This "bottom up" approach measuring parameters allows predicting wave transport phenomena within interest at multitude scales-from organelle level.

10.1364/ol.34.001372 article EN Optics Letters 2009-04-20

It is of great importance in the conceptual creative design mechanical systems to synthesize as many feasible kinematic structures mechanisms possible. However, methods for structural synthesis multiple joint chains are seldom addressed literature even though they widely used various products. This paper proposes an automatic method planar chains. First, bicolor topological graph and contracted introduced represent Then, characteristic number string graphs proposed efficiently detect...

10.1115/1.4024733 article EN Journal of Mechanical Design 2013-07-02

We introduce a method with which to obtain accurately the bulk optical parameters of fresh biological tissues in vitro by combining measurements sample surface profiles, reflectance, and transmittances Monte Carlo-based inverse calculations. The porcine dermis tissue were determined at eight wavelengths from 325 1557 nm found be much different those without consideration roughness.

10.1364/ol.30.000412 article EN Optics Letters 2005-02-15

Some new concepts, such as the perimeter loop, maximum degree-sequence, and topological graph, are first presented in this paper, method for obtaining loop is also involved. Then, based on graph some rules relabeling its vertices canonically, a one-to-one descriptive method, canonical adjacency matrix set of kinematic chains, proposed. Another very important characteristic that element number reduced dramatically, usually to only one. After that, an effective identify isomorphism chains...

10.1115/1.2748451 article EN Journal of Mechanical Design 2006-09-09

We employed the scattering-phase theorem recently derived in our laboratory to extract tissue scattering properties from quantitative phase images. Using path-length maps that contain nanoscale information about tissue, mean free path l(s) and anisotropy factor g were measured a spatially resolved manner.

10.1364/ol.36.002281 article EN Optics Letters 2011-06-10

The creation of novel kinematic structures mechanisms still represents a major challenge in the quest for developing new, innovative devices. In this setting, computer models that can automatically generate and visualize all possible independent an intuitive manner prove to be valuable as support creative process designer. This paper proposes automatic approach establishing complete atlas database 2-DOF chains systematic design based on such atlas. First, transformation structure into...

10.1115/1.4005866 article EN Journal of Mechanical Design 2012-02-29

Conception of the kinematic structures with better performance has been a challenging, yet pivotal issue, since beginning design mechanisms or robots. This paper proposes systematic method to synthesize and classify automatically all valid planar 3-DOF closed loop First, after structure representation graphs robots are addressed, unique both contracted topological is proposed used detect isomorphism in synthesis process. Then atlas database for up 16-link built. Based on database, an...

10.1115/1.4024919 article EN Journal of Mechanisms and Robotics 2013-09-11

The optimal design of TriPower shovel attachment remains a challenging task although face excavators work well in mines all over the world. To address this issue, we establish multiobjective optimization model attachment, which sets three kinematic indicators and two mechanical as objective functions. An improved evolutionary algorithm (MOEA) based on decomposition is proposed to solve problem, outperforms several representative MOEAs case study, lot nondominated solutions are obtained....

10.1109/tmech.2019.2903140 article EN IEEE/ASME Transactions on Mechatronics 2019-03-07
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