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Multiresolution and multimaterial topology optimization of fail-safe structures under B-spline spaces

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 4, doi: 10.1007/s11465-023-0768-9

Abstract: This study proposes a B-spline-based multiresolution and multimaterial topology optimization (TO) designfiner density mesh to discretize the design domain, in which the density field is described by the B-splineThe B-spline can efficiently and accurately convert optimized FSSs into computer-aided design models.

Keywords： multiresolution     multimaterial     topology optimization     fail-safe structure     B-spline    

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Crack fault quantitative diagnosis based on finite element of B-spline wavelet on the interval

XIANG Jia-wei, CHEN Xue-feng, HE Zheng-jia, HE Yu-min

Frontiers of Mechanical Engineering 2006, Volume 1, Issue 2,   Pages 177-182 doi: 10.1007/s11465-006-0001-7

Abstract: Then, the one-dimensional crack element of B-spline wavelet on the interval (BSWI) was built to solve

Keywords： one-dimensional     B-spline     incipient     prognosis     identification precision    

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Edge Detection Based on a Uniform B-Spline With Shape Parameter by Modifying Profit and Loss Data

Zhao Yanli ,Wang Zhan ,Guo Chenghao ,Liu Fengyu

Strategic Study of CAE 2007, Volume 9, Issue 7,   Pages 65-70

Abstract: "text-align: justify;">This paper puts forward a novel image edge detection method based on uniform B-spline

Keywords： uniform B-spline with shape parameter     edge detection     computer vision     profit and loss modifying    

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Three-dimensional face point cloud hole-filling algorithm based on binocular stereo matching and a B-spline Research Articles

Yuan HUANG, Feipeng DA,whhbb@163.com

Frontiers of Information Technology & Electronic Engineering 2022, Volume 23, Issue 3,   Pages 398-408 doi: 10.1631/FITEE.2000508

Abstract: When obtaining three-dimensional (3D) face point cloud data based on structured light, factors related to the environment, occlusion, and illumination intensity lead to holes in the collected data, which affect subsequent recognition. In this study, we propose a hole-filling method based on stereo-matching technology combined with a . The algorithm uses phase information acquired during raster projection to locate holes in the point cloud, simultaneously extracting boundary point cloud sets. By registering the face point cloud data using the stereo-matching algorithm and the data collected using the raster projection method, some supplementary information points can be obtained at the holes. The shape of the curve can then be roughly described by a few key points, and the control points are put into the hole area as key points for iterative calculation of surface reconstruction. Simulations using smooth ceramic cups and human face models showed that our model can accurately reproduce details and accurately restore complex shapes on the test surfaces. Simulation results indicated the robustness of the method, which is able to fill holes on complex areas such as the inner side of the nose without a prior model. This approach also effectively supplements the hole information, and the patched point cloud is closer to the original data. This method could be used across a wide range of applications requiring accurate facial recognition.

Keywords： Three-dimensional (3D) point cloud     Hole filling     Stereo matching     B-spline    

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Feature extraction from slice data for reverse engineering

ZHANG Yingjie, LU Shangning

Frontiers of Mechanical Engineering 2007, Volume 2, Issue 1,   Pages 25-31 doi: 10.1007/s11465-007-0004-z

Abstract: curve segments of the contours are divided into three categories: straight lines, conic curves and B-spline

Keywords： feasibility     corresponding     B-spline     pre-determined tolerance     extraction    

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Implicit Heaviside filter with high continuity based on suitably graded THB splines

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 1,   Pages 14-14 doi: 10.1007/s11465-021-0670-2

Abstract: white designs for TO where the design space is parameterized by suitably graded truncated hierarchical B-splinesanalysis is decoupled from the design mesh, whose adaptivity is implemented by truncated hierarchical B-splinedesign mesh is easily established compared with the traditional adaptive TO method using nodal density; b)updating design variables is remarkably improved than the traditional implicit sensitivity filter based on B-splines

Keywords： topology optimization     truncated hierarchical B-spline     isogeometric analysis     black and white designs    

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Implementation of an adaptive feed speed 3D NURBS interpolation algorithm

LIANG Hong-bin, WANG Yong-zhang, LI Xia

Frontiers of Mechanical Engineering 2006, Volume 1, Issue 4,   Pages 403-408 doi: 10.1007/s11465-006-0047-6

Abstract: NURBS (non-uniform rational B-spline) interpolation algorithms have been provided in modern CNC (computer

Keywords： NURBS parametric     rational B-spline     second-order     non-uniform rational     precision    

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A novel energy loss model and optimization design of the coin chute flection curve

Qinghua LIANG, Jinqiu MO, Weizhong GUO

Frontiers of Mechanical Engineering 2012, Volume 7, Issue 1,   Pages 38-46 doi: 10.1007/s11465-012-0311-x

Abstract: The flection curve is constructed based on cubic quasi-uniform B-spline with the data points and end

Keywords： flection curve     B-spline     energy loss model (ELM model)     optimization design    

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Multi-objective optimization of a 3D vaneless diffuser based on fuzzy theory

GAO Chuang, GU Chuangang, WANG Tong, SHU Xinwei

Frontiers in Energy 2008, Volume 2, Issue 1,   Pages 66-70 doi: 10.1007/s11708-008-0006-5

Abstract: The shroud curve was fitted with B-spline.

Keywords： Computational     pressure recovery     B-spline     technology     corresponding Interactive    

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High-order phase-field model with the local and second-order max-entropy approximants

Fatemeh AMIRI

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 2,   Pages 406-416 doi: 10.1007/s11709-018-0475-5

Abstract: be captured more accurately in the fourth-order model with smooth approximants such as LME, SME and B-spline

Keywords： second-order maximum entropy     local maximum entropy     second- and fourth-order phase-field models     B-spline    

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Exponential polynomial uniform splines model

Zhao Yanli,Ping Ping,Liu Fengyu

Strategic Study of CAE 2008, Volume 10, Issue 7,   Pages 147-152

Abstract: style="text-align: justify;"> A new model of k( k ≥ 3) order exponential polynomial uniform splineis given.Most of its properties similar to those of the B - spline model, and also it has an adjustableThe spline curves which are constructed by the exponential polynomial uniform splines can adjust the

Keywords： exponential polynomial uniform spline function     uniform B - spline function     shape parameter    

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Interpolation of a spline developable surface between a curve and two rulings

Alicia CANTÓN,Leonardo FERNÁNDEZ-JAMBRINA

Frontiers of Information Technology & Electronic Engineering 2015, Volume 16, Issue 3,   Pages 173-190 doi: 10.1631/FITEE.14a0210

Abstract: In this paper we address the problem of interpolating a spline developable patch bounded by a given splineTo complete the boundary of the patch, a second spline curve is to be given.

Keywords： Developable surfaces     Spline surfaces     Blossoms    

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Current hepatitis B treatment guidelines and future research directions

Jonathan Skupsky,Ke-Qin Hu

Frontiers of Medicine 2014, Volume 8, Issue 2,   Pages 145-157 doi: 10.1007/s11684-014-0335-1

Abstract:

Hepatitis B virus (HBV) infection causes a tremendous clinical burden across the world with more than

Keywords： chronic hepatitis B     HBV treatment guidelines     APASL guidelines     EASL guidelines     AASLD guidelines    

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Comparison of modeling methods for wind power prediction: a critical study

Rashmi P. SHETTY, A. SATHYABHAMA, P. Srinivasa PAI

Frontiers in Energy 2020, Volume 14, Issue 2,   Pages 347-358 doi: 10.1007/s11708-018-0553-3

Abstract: Prediction of power generation of a wind turbine is crucial, which calls for accurate and reliable models. In this work, six different models have been developed based on wind power equation, concept of power curve, response surface methodology (RSM) and artificial neural network (ANN), and the results have been compared. To develop the models based on the concept of power curve, the manufacturer’s power curve, and to develop RSM as well as ANN models, the data collected from supervisory control and data acquisition (SCADA) of a 1.5 MW turbine have been used. In addition to wind speed, the air density, blade pitch angle, rotor speed and wind direction have been considered as input variables for RSM and ANN models. Proper selection of input variables and capability of ANN to map input-output relationships have resulted in an accurate model for wind power prediction in comparison to other methods.

Keywords： power curve     method of least squares     cubic spline interpolation     response surface methodology     artificial    

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Clinical characteristics and risk factors of COVID-19 patients with chronic hepatitis B: a multi-center

Frontiers of Medicine 2022, Volume 16, Issue 1,   Pages 111-125 doi: 10.1007/s11684-021-0854-5

Abstract: 19 patients, the association of liver injury caused by specific subtype especially chronic hepatitis B

Keywords： COVID-19     chronic hepatitis B     liver injury     coagulation dysfunction    

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Title Author Date Type Operation

Multiresolution and multimaterial topology optimization of fail-safe structures under B-spline spaces

Journal Article

Crack fault quantitative diagnosis based on finite element of B-spline wavelet on the interval

XIANG Jia-wei, CHEN Xue-feng, HE Zheng-jia, HE Yu-min

Journal Article

Edge Detection Based on a Uniform B-Spline With Shape Parameter by Modifying Profit and Loss Data

Zhao Yanli ,Wang Zhan ,Guo Chenghao ,Liu Fengyu

Journal Article

Three-dimensional face point cloud hole-filling algorithm based on binocular stereo matching and a B-spline

Yuan HUANG, Feipeng DA,whhbb@163.com

Journal Article

Feature extraction from slice data for reverse engineering

ZHANG Yingjie, LU Shangning

Journal Article

Implicit Heaviside filter with high continuity based on suitably graded THB splines

Journal Article

Implementation of an adaptive feed speed 3D NURBS interpolation algorithm

LIANG Hong-bin, WANG Yong-zhang, LI Xia

Journal Article

A novel energy loss model and optimization design of the coin chute flection curve

Qinghua LIANG, Jinqiu MO, Weizhong GUO

Journal Article

Multi-objective optimization of a 3D vaneless diffuser based on fuzzy theory

GAO Chuang, GU Chuangang, WANG Tong, SHU Xinwei

Journal Article

High-order phase-field model with the local and second-order max-entropy approximants

Fatemeh AMIRI

Journal Article

Exponential polynomial uniform splines model

Zhao Yanli,Ping Ping,Liu Fengyu

Journal Article

Interpolation of a spline developable surface between a curve and two rulings

Alicia CANTÓN,Leonardo FERNÁNDEZ-JAMBRINA

Journal Article

Current hepatitis B treatment guidelines and future research directions

Jonathan Skupsky,Ke-Qin Hu

Journal Article

Comparison of modeling methods for wind power prediction: a critical study

Rashmi P. SHETTY, A. SATHYABHAMA, P. Srinivasa PAI

Journal Article

Clinical characteristics and risk factors of COVID-19 patients with chronic hepatitis B: a multi-center

Journal Article