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Design method and verification of a hybrid prosthetic mechanism with energy-damper clutchable device

Frontiers of Mechanical Engineering 2021, Volume 16, Issue 4,   Pages 747-764 doi: 10.1007/s11465-021-0644-4

Abstract: In this work, the configurations of transfemoral prosthetic mechanism are synthesized in terms of humanA hybrid transfemoral prosthetic (HTP) mechanism with multigait functions is proposed to recover thefeasibility in transfemoral prosthetic mechanism.Its co-operation with the springs in the prismatic pairs enables the prosthetic mechanism to have theResults demonstrate that the designed HTP mechanism can replace the motion functions of the knee and

Keywords： hybrid transfemoral prosthetic mechanism     energy recycling     wearable mechanical clutched device     mechanical    

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Load-sharing mechanism in timber-steel hybrid shear wall systems

Zheng LI,Minjuan HE,Frank LAM,Minghao LI

Frontiers of Structural and Civil Engineering 2015, Volume 9, Issue 2,   Pages 203-214 doi: 10.1007/s11709-015-0293-y

Abstract: The lateral performance of timber-steel hybrid shear wall systems with regard to the interaction betweenA numerical model for the timber-steel hybrid shear wall system was developed and verified against testIn the hybrid shear wall system, the infill wood wall was found to resist a major part of the lateralUnder seismic loads, the infill wood wall could significantly reduce the inter-story drift of the hybridwas observed through different lateral load resisting mechanisms, which provided robustness to the hybrid

Keywords： timer-steel hybrid     shear wall     load sharing mechanism     seismic performance     parametric analysis    

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MSSSA: a multi-strategy enhanced sparrow search algorithm for global optimization Research Article

Kai MENG, Chen CHEN, Bin XIN

Frontiers of Information Technology & Electronic Engineering 2022, Volume 23, Issue 12,   Pages 1828-1847 doi: 10.1631/FITEE.2200237

Abstract: The (SSA) is a recent meta-heuristic optimization approach with the advantages of simplicity and flexibility. However, SSA still faces challenges of premature convergence and imbalance between exploration and exploitation, especially when tackling multimodal . Aiming to deal with the above problems, we propose an enhanced variant of SSA called the multi-strategy enhanced (MSSSA) in this paper. First, a chaotic map is introduced to obtain a high-quality initial population for SSA, and the opposition-based learning strategy is employed to increase the population diversity. Then, an is designed to accommodate an adequate balance between exploration and exploitation. Finally, a is embedded in the individual update stage to avoid falling into local optima. To validate the effectiveness of the proposed MSSSA, a large number of experiments are implemented, including 40 complex functions from the IEEE CEC2014 and IEEE CEC2019 test suites and 10 classical functions with different dimensions. Experimental results show that the MSSSA achieves competitive performance compared with several state-of-the-art optimization algorithms. The proposed MSSSA is also successfully applied to solve two engineering . The results demonstrate the superiority of the MSSSA in addressing practical problems.

Keywords： Swarm intelligence     Sparrow search algorithm     Adaptive parameter control strategy     Hybrid disturbancemechanism     Optimization problems    

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Hybrid forming mechanism of patternless casting and laser cladding

Zhongde SHAN, Fuzhen SUN, Yang LIU

Frontiers of Mechanical Engineering 2019, Volume 14, Issue 4,   Pages 393-401 doi: 10.1007/s11465-019-0550-1

Abstract: In accordance with the requirement of manufacturing dies quickly and economically, a hybrid forming methodAn experimental study is conducted on the hybrid forming process and its trial production and application

Keywords： patternless casting     laser cladding     hybrid forming     rapid tooling    

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Design of a novel side-mounted leg mechanism with high flexibility for a multi-mission quadruped earth

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 2, doi: 10.1007/s11465-022-0740-0

Abstract: At present, few methods for these robots’ leg design utilize a side-mounted spatial parallel mechanismThus, this paper presents a complete design process of a novel 5-degree-of-freedom (5-DOF) hybrid legmechanism for our quadruped earth rover BJTUBOT.First, a general approach is proposed for constructing the novel leg mechanism.With regard to the synthesis method of the parallel mechanism, a family of concise hybrid leg mechanisms

Keywords： design synthesis     parallel mechanism     hybrid leg mechanism     screw theory     quadruped robot    

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Modal disturbance investigation of rod-shaped ultrasonic motor using bending vibrations

ZHANG Jiantao, ZHU Hua, ZHAO Chunsheng

Frontiers of Mechanical Engineering 2008, Volume 3, Issue 3,   Pages 343-347 doi: 10.1007/s11465-008-0058-6

Abstract: Modal disturbance of a rod-shaped ultrasonic motor using bending vibrations can cause problems such asAccordingly, the structure parameters of the stator are modified to separate working modes from disturbanceThe frequency separation between working modes and disturbance modes is more than 2 kHz.

Keywords： Hamilton principle     disturbance     separation     frequency separation     dynamic analysis    

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pyrolysis to convert biomass to versatile 3D carbon nanotubes/mesoporous carbon architecture: conversion mechanism

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 6,   Pages 679-690 doi: 10.1007/s11705-022-2266-8

Abstract: merits of carbon nanotubes and mesoporous carbon, the as-synthesized carbon nanotubes/mesoporous carbon hybrid

Keywords： biomass     direct pyrolysis     3D CNTs/MC hybrid     lithium-ion batteries     Zn-air batteries    

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Virtual reality system of manned maneuvering unit taking into consideration the disturbance from an astronaut

CHENG Jian, FAN Xiu-min, XU An, HONG Xin, HUANG Wei-dong

Frontiers of Mechanical Engineering 2006, Volume 1, Issue 3,   Pages 282-287 doi: 10.1007/s11465-006-0042-y

Abstract: Based on the dynamics/kinematics model of an astronaut equipped with an MMU, a disturbance model of theFinally, the paper presents two different results between loading and unloading the disturbance model

Keywords： real-time emendation     disturbance     maneuvering     MMU     correction    

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Application of a Novel Fuzzy Clustering Method Based on Chaos Immune Evolutionary Algorithm for Edge Detection in Image Processing

Frontiers of Mechanical Engineering 2006, Volume 1, Issue 1,   Pages 85-89 doi: 10.1007/s11465-005-0023-6

Abstract: In CIEFCM, a tiny disturbance is added to a filial generation group using a chaos variable and the disturbance

Keywords： disturbance amplitude     disturbance     diversity     generation     processing    

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Disturbance rejection via iterative learning controlwith a disturbance observer for active magnetic bearing None

Ze-zhi TANG, Yuan-jin YU, Zhen-hong LI, Zheng-tao DING

Frontiers of Information Technology & Electronic Engineering 2019, Volume 20, Issue 1,   Pages 131-140 doi: 10.1631/FITEE.1800558

Abstract: A disturbance observer based ILC scheme is proposed that consists of a universal extended state observer

Keywords： Active magnetic bearings (AMBs)     Iterative learning control (ILC)     Disturbance observer    

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Polycystic ovary syndrome

Zi-Jiang CHEN, Yuhua SHI

Frontiers of Medicine 2010, Volume 4, Issue 3,   Pages 280-284 doi: 10.1007/s11684-010-0098-2

Abstract: Polycystic ovary syndrome (PCOS) is a common gynecologic endocrinopathy. The pathogenesis of PCOS is associated with both heredity and environment. PCOS has adverse impacts on female endocrine, reproduction, and metabolism. PCOS can impact women’s reproductive health, leading to anovulatory infertility and higher rate of early pregnancy loss. PCOS has additional metabolic derangements, such as insulin resistance, impaired glucose tolerance, and dyslipidemia. The risks of diabetes, cardiovascular disease, hypertension, metabolic syndrome, and endometrial cancer among PCOS patients are significantly increased as well.

Keywords： polycystic ovary syndrome     genetics     metabolic disturbance    

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Numerical Simulation of Rotor/Stator Interaction in Turbomachinery by Use of a Disturbance Vortex Method

Chen Maozhang,Peng Bo

Strategic Study of CAE 2000, Volume 2, Issue 2,   Pages 15-23

Abstract:

A disturbance vortex method for simulating rotor/stator interaction in turbomachinery was developedaim to lay down a solid mathematical and physical foundation for the disturbance vortex method.and energy transport equations for disturbance motion in a coupled way.the disturbance expansion is taken into consideration.disturbance motion.

Keywords： turbomachinery     rotor/stator interaction     disturbance vortex method     compressible flow     unsteady flow    

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Intelligent hybrid power generation system using new hybrid fuzzy-neural for photovoltaic system and

Alireza REZVANI,Ali ESMAEILY,Hasan ETAATI,Mohammad MOHAMMADINODOUSHAN

Frontiers in Energy 2019, Volume 13, Issue 1,   Pages 131-148 doi: 10.1007/s11708-017-0446-x

Abstract: In this paper, a novel topology of an intelligent hybrid generation system with PV and wind turbine isIn order to capture the maximum power, a hybrid fuzzy-neural maximum power point tracking (MPPT) methodThe average tracking efficiency of the hybrid fuzzy-neural is incremented by approximately two percentageDetailed mathematical model and a control approach of a three-phase grid-connected intelligent hybrid

Keywords： photovoltaic     wind turbine     hybrid system     fuzzy logic controller     genetic algorithm     RBFNSM    

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Robust ensemble of metamodels based on the hybrid error measure

Frontiers of Mechanical Engineering 2021, Volume 16, Issue 3,   Pages 623-634 doi: 10.1007/s11465-021-0641-7

Abstract: The weight factor is adaptively determined according to the hybrid error metric, which combines global

Keywords： metamodel     ensemble of metamodels     hybrid error measure     stochastic problem    

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Diffusion process in enzyme–metal hybrid catalysts

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 6,   Pages 921-929 doi: 10.1007/s11705-022-2144-4

Abstract: Enzyme–metal hybrid catalysts bridge the gap between enzymatic and heterogeneous catalysis, which isPrevious studies have demonstrated that the enzyme–metal hybrid catalysts exhibited considerably higherHowever, the precise mechanism of this phenomenon remains unclear.Here, we investigated the diffusion process in enzyme–metal hybrid catalysts using Pd/lipase-PluronicThereafter, a kinetic model was developed and fitted to describe the proximity effect in hybrid catalysts

Keywords： enzyme–metal hybrid catalyst     internal diffusion     proximity effect     kinetic model    

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Title Author Date Type Operation

Design method and verification of a hybrid prosthetic mechanism with energy-damper clutchable device

Journal Article

Load-sharing mechanism in timber-steel hybrid shear wall systems

Zheng LI,Minjuan HE,Frank LAM,Minghao LI

Journal Article

MSSSA: a multi-strategy enhanced sparrow search algorithm for global optimization

Kai MENG, Chen CHEN, Bin XIN

Journal Article

Hybrid forming mechanism of patternless casting and laser cladding

Zhongde SHAN, Fuzhen SUN, Yang LIU

Journal Article

Design of a novel side-mounted leg mechanism with high flexibility for a multi-mission quadruped earth

Journal Article

Modal disturbance investigation of rod-shaped ultrasonic motor using bending vibrations

ZHANG Jiantao, ZHU Hua, ZHAO Chunsheng

Journal Article

pyrolysis to convert biomass to versatile 3D carbon nanotubes/mesoporous carbon architecture: conversion mechanism

Journal Article

Virtual reality system of manned maneuvering unit taking into consideration the disturbance from an astronaut

CHENG Jian, FAN Xiu-min, XU An, HONG Xin, HUANG Wei-dong

Journal Article

Application of a Novel Fuzzy Clustering Method Based on Chaos Immune Evolutionary Algorithm for Edge Detection in Image Processing

Journal Article

Disturbance rejection via iterative learning controlwith a disturbance observer for active magnetic bearing

Ze-zhi TANG, Yuan-jin YU, Zhen-hong LI, Zheng-tao DING

Journal Article

Polycystic ovary syndrome

Zi-Jiang CHEN, Yuhua SHI

Journal Article

Numerical Simulation of Rotor/Stator Interaction in Turbomachinery by Use of a Disturbance Vortex Method

Chen Maozhang,Peng Bo

Journal Article

Intelligent hybrid power generation system using new hybrid fuzzy-neural for photovoltaic system and

Alireza REZVANI,Ali ESMAEILY,Hasan ETAATI,Mohammad MOHAMMADINODOUSHAN

Journal Article

Robust ensemble of metamodels based on the hybrid error measure

Journal Article

Diffusion process in enzyme–metal hybrid catalysts

Journal Article