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Efficientmesh denoising via robust normal filtering and alternate vertex updating Article

Tao LI, Jun WANG, Hao LIU, Li-gang LIU

Frontiers of Information Technology & Electronic Engineering 2017, Volume 18, Issue 11,   Pages 1828-1842 doi: 10.1631/FITEE.1601229

Abstract: The most challenging problem in mesh denoising is to distinguish features from noise.guided normal estimation and alternate vertex updating strategy, we investigate a new feature-preserving meshdenoising method.

Keywords： Mesh denoising     Guided normal filtering     Alternate vertex updating     Corner-aware neighborhoods    

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IEEE 802.16 Mesh Network SA Management Mechanism Based on Multi-hops Mutual Authentication

Wang Xingjian,Hu Aiqun,Huang Yuhua

Strategic Study of CAE 2006, Volume 8, Issue 9,   Pages 69-73

Abstract:

Mesh network supported by IEEE802.16-2004 wireless-MAN standard is a fresh network combining treesecurity and efficiency of one-hop one-way authentication SA (security association) mechanism employed by Mesh

Keywords： IEEE 802.16     mesh     node     multi-hops mutual authentication     self-modified routing    

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Mesh relationship modeling and dynamic characteristic analysis of external spur gears with gear wear

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 1,   Pages 9-9 doi: 10.1007/s11465-021-0665-z

Abstract: Gear wear is one of the most common gear failures, which changes the mesh relationship of normal gearA new mesh relationship caused by gear wear affects meshing excitations, such as mesh stiffness and transmissionThis paper aims to establish the model of mesh relationship and reveal the vibration characteristicsthe influence of gear wear on mesh stiffness and unloaded static transmission error (USTE).Based on the mesh stiffness and USTE considering gear wear, a gear dynamic model is established, and

Keywords： gear wear     mesh relationship     mesh stiffness     transmission error     vibration characteristics    

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The application of advanced threshold denoising tothe MMW target radiation signal

Fan Qinghui,Li Xingguo

Strategic Study of CAE 2008, Volume 10, Issue 7,   Pages 153-157

Abstract:

In this paper based on the characteristics of millimeter wave radiation signal for wavelet transform, non-negative wavelet coefficient is used as the wavelet coefficient of the signal. For a given threshold value, the wavelet coefficient which is smaller than the threshold is set zero and the wavelet coefficient which is larger than the threshold is set the difference between the coefficient and a constant a.The method for valuing a is inferred by the variance function of signal, and the experiments show that it has good ability of removing the noise in MMW target radiation signal.

Keywords： The application of advanced threshold denoising tothe MMW target radiation signal    

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Numerical studies of dynamic behavior of liquid film on single-layer wire mesh with different wettabilities

Frontiers of Chemical Science and Engineering   Pages 1672-1680 doi: 10.1007/s11705-022-2205-8

Abstract: Droplet impacting on the stainless steel wire mesh is very common in chemical devices, like a rotatingSurface wettability of wire mesh significantly affects the liquid flow pattern and liquid dispersionThe dynamic behavior of liquid film on the surface of wire mesh can be divided into the following threeCompared to the hydrophilic wire mesh, the final wetting area of hydrophobic wire mesh is zero in mostof hydrophobic wire mesh is 41.76–237.37 μm.

Keywords： stainless steel wire mesh     computational fluid dynamics     surface wettability     liquid film     impacting    

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Fabrication of a superhydrophilic/underwater superoleophobic stainless steel mesh for oil/water separation

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 1,   Pages 46-55 doi: 10.1007/s11705-022-2170-2

Abstract: , a superhydrophilic/underwater superoleophobic N-isopropylacrylamide-coated stainless steel meshThe obtained mesh was able to separate oil/water mixtures only by gravity.In addition, the mesh showed high-efficiency separation ability (99.2%) and ultrahigh flux (235239 L∙Importantly, due to the complex cross-linked bilayer structure, the prepared mesh exhibited good recycling

Keywords： oil/water separation     N-isopropylacrylamide     stainless steel mesh     ultrahigh flux    

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Reliability mesh convergence analysis by introducing expanded control variates

Alireza GHAVIDEL, Mohsen RASHKI, Hamed GHOHANI ARAB, Mehdi AZHDARY MOGHADDAM

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 4,   Pages 1012-1023 doi: 10.1007/s11709-020-0631-6

Abstract: ACVAT uses the results of a finite element method (FEM) model with coarse mesh density as the controlvariates of the model with fine mesh and efficiently solves FEM-based reliability problems.ACVAT however does not provide any results about the reliability-based mesh convergence of the problemMesh-refinement analysis allows checking whether the numerical solution is sufficiently accurate, evenThe results confirm that the proposed approach not only handles the mesh refinement progress with the

Keywords： finite element     reliability mesh convergence analysis     expanded control variates    

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A novel composite coating mesh film for oil-water separation

Futao QIN, Zhijia YU, Xinhui FANG, Xinghua LIU, Xiangyu SUN

Frontiers of Chemical Science and Engineering 2009, Volume 3, Issue 1,   Pages 112-118 doi: 10.1007/s11705-009-0149-x

Abstract: Polytetrafluoroethylene-polyphenylene sulfide composite coating mesh film was successfully prepared bya simple layered transitional spray-plasticizing method on a stainless steel mesh.The contact angle of this mesh film is 156.3° for water, and close to 0° for diesel oil and kerosene.The contact angle hysteresis of water on the mesh film is 4.3°.

Keywords： super-hydrophobic     super-oleophilic     composite coating     mesh film     separation of oil and water    

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buoyant-thermocapillary flow along with rising liquid film on the surface of a horizontal metallic mesh

Manuel J. GOMES, Ning MEI

Frontiers in Energy 2020, Volume 14, Issue 1,   Pages 114-126 doi: 10.1007/s11708-017-0483-5

Abstract: considered in the analysis of the influences of the initial level of immersion of a horizontal metallic meshcombined flow occurs along with the rising liquid film flow on the surface of a horizontal metallic meshThree different levels of immersion of the metallic mesh tube in the liquid have been tested.heating metallic tube with a diameter of 25 mm and a length of 110 mm, sealed outside with a metallic mesh

Keywords： rising liquid film     combined flow     thermo-capillary flow     buoyant flow     metallic mesh tube     horizontal tube    

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Dual-constraint burst image denoising method Research Articles

Dan ZHANG, Lei ZHAO, Duanqing XU, Dongming LU,cszhd@zju.edu.cn,cszhl@zju.edu.cn,xdq@zju.edu.cn,ldm@zju.edu.cn

Frontiers of Information Technology & Electronic Engineering 2022, Volume 23, Issue 2,   Pages 220-233 doi: 10.1631/FITEE.2000353

Abstract: has proven to be an effective mechanism for computer vision tasks, especially for and burst . In this paper, we focus on solving the burst problem and aim to generate a single clean image from a burst of noisy images. We propose to combine the power of block matching and 3D filtering (BM3D) and a convolutional neural network (CNN) for burst . In particular, we design a CNN with a divide-and-conquer strategy. First, we employ BM3D to preprocess the noisy burst images. Then, the preprocessed images and noisy images are fed separately into two parallel CNN branches. The two branches produce somewhat different results. Finally, we use a light CNN block to combine the two outputs. In addition, we improve the performance by optimizing the two branches using two different constraints: a signal constraint and a noise constraint. One maps a clean signal, and the other maps the noise distribution. In addition, we adopt block matching in the network to avoid frame misalignment. Experimental results on synthetic and real noisy images show that our algorithm is competitive with other algorithms.

Keywords： Image denoising     Burst image denoising     Deep learning    

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Micro － blind mesh thermal control study and simulation of nano-satellite

Yang Juan,Li Yunze,Wang Jun

Strategic Study of CAE 2008, Volume 10, Issue 7,   Pages 169-172

Abstract: Micro-blind mesh can resolve this problem properly.The intelligent control strategy of micro-blind mesh' s drive is the key technology.

Keywords： nano-satellite     micro-blind mesh     fuzzy PI controller     simulation    

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An improved method for image denoising based on fractional-order integration

Li Xu, Guo Huang, Qing-li Chen, Hong-yin Qin, Tao Men, Yi-fei Pu,huangguoxuli@163.com

Frontiers of Information Technology & Electronic Engineering 2020, Volume 21, Issue 10,   Pages 1413-1534 doi: 10.1631/FITEE.1900727

Abstract: Moreover, this method can obtain higher image feature values and better image vision after denoisingthan the existing denoising methods, because a mechanism is adopted during the iterative processing.
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Research on the method of cavitations resistance in a piezoelectric pump with 3-dimensional mesh structure

ZHANG Jian-hui, Bai Heng-jun, XIA Qi-xiao, NING Hong-gang, ONUKI Akiyoshi

Frontiers of Mechanical Engineering 2006, Volume 1, Issue 4,   Pages 429-433 doi: 10.1007/s11465-006-0052-9

Abstract: As a solution to this disadvantage, the CR3DMS (cavitations resistance with 3-dimensional mesh structure

Keywords： different     3-dimensional     occurrence     effective     Resistant-Layers    

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Subpixel image reconstruction and denoising based on complex wavelet

Zhang Zhi,Wei Zhihui,Xia Deshen

Strategic Study of CAE 2008, Volume 10, Issue 11,   Pages 76-81

Abstract: The algorithm of adaptive threshold wavelet denoising based inter-scale is used.

Keywords： subpixel     complex wavelet     adaptive threshold     reconstruction     denosing    

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Dynamic modeling of hydrostatic guideway considering compressibility and inertia effect

Yikang DU,Kuanmin MAO,Yaming ZHU,Fengyun WANG,Xiaobo MAO,Bin LI

Frontiers of Mechanical Engineering 2015, Volume 10, Issue 1,   Pages 78-88 doi: 10.1007/s11465-015-0331-4

Abstract:

Hydrostatic guideways are used as an alternative to contact bearings due to high stiffness and high damping in heavy machine tools. To improve the dynamic characteristic of bearing structure, the dynamic modeling of the hydrostatic guidway should be accurately known. This paper presents a “mass-spring-Maxwell” model considering the effects of inertia, squeeze, compressibility and static bearing. To determine the dynamic model coefficients, numerical simulation of different cases between displacement and dynamic force of oil film are performed with fluent code. Simulation results show that hydrostatic guidway can be taken as a linear system when it is subjected to a small oscillation amplitude. Based on a dynamic model and numerical simulation, every dynamic model’s parameters are calculated by the Levenberg-Marquardt algorithm. Identification results show that “mass-spring-damper” model is the most appropriate dynamic model of the hydrostatic guidway. This paper provides a reference and preparation for the analysis of the dynamic model of the similar hydrostatic bearings.

Keywords： hydrostatic guidway     dynamic model     dynamic mesh technique     Levenberg-Marquardt     mass-spring-damper model    

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Title Author Date Type Operation

Efficientmesh denoising via robust normal filtering and alternate vertex updating

Tao LI, Jun WANG, Hao LIU, Li-gang LIU

Journal Article

IEEE 802.16 Mesh Network SA Management Mechanism Based on Multi-hops Mutual Authentication

Wang Xingjian,Hu Aiqun,Huang Yuhua

Journal Article

Mesh relationship modeling and dynamic characteristic analysis of external spur gears with gear wear

Journal Article

The application of advanced threshold denoising tothe MMW target radiation signal

Fan Qinghui,Li Xingguo

Journal Article

Numerical studies of dynamic behavior of liquid film on single-layer wire mesh with different wettabilities

Journal Article

Fabrication of a superhydrophilic/underwater superoleophobic stainless steel mesh for oil/water separation

Journal Article

Reliability mesh convergence analysis by introducing expanded control variates

Alireza GHAVIDEL, Mohsen RASHKI, Hamed GHOHANI ARAB, Mehdi AZHDARY MOGHADDAM

Journal Article

A novel composite coating mesh film for oil-water separation

Futao QIN, Zhijia YU, Xinhui FANG, Xinghua LIU, Xiangyu SUN

Journal Article

buoyant-thermocapillary flow along with rising liquid film on the surface of a horizontal metallic mesh

Manuel J. GOMES, Ning MEI

Journal Article

Dual-constraint burst image denoising method

Dan ZHANG, Lei ZHAO, Duanqing XU, Dongming LU,cszhd@zju.edu.cn,cszhl@zju.edu.cn,xdq@zju.edu.cn,ldm@zju.edu.cn

Journal Article

Micro － blind mesh thermal control study and simulation of nano-satellite

Yang Juan,Li Yunze,Wang Jun

Journal Article

An improved method for image denoising based on fractional-order integration

Li Xu, Guo Huang, Qing-li Chen, Hong-yin Qin, Tao Men, Yi-fei Pu,huangguoxuli@163.com

Journal Article

Research on the method of cavitations resistance in a piezoelectric pump with 3-dimensional mesh structure

ZHANG Jian-hui, Bai Heng-jun, XIA Qi-xiao, NING Hong-gang, ONUKI Akiyoshi

Journal Article

Subpixel image reconstruction and denoising based on complex wavelet

Zhang Zhi,Wei Zhihui,Xia Deshen

Journal Article

Dynamic modeling of hydrostatic guideway considering compressibility and inertia effect

Yikang DU,Kuanmin MAO,Yaming ZHU,Fengyun WANG,Xiaobo MAO,Bin LI

Journal Article