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Gain-enhanced reconfigurable radiation array with mechanically driven system and directive elements

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 4, doi: 10.1007/s11465-022-0716-0

Abstract: the artificial intelligence-driven modern wireless communication system, antennas are required to be reconfigurableIn this paper, we propose a mechanically reconfigurable radiation array (RRA) based on miniaturized elementsA five-element RRA with a phase-reconfigurable center element is designed and analyzed theoretically.realize the size and phase distribution reconfiguration simultaneously to validate the enhanced gains of RRAThe proposed RRA can be tessellated into larger arrays to achieve higher gains in other frequency regimes

Keywords： mechanism     reconfigurable radiation array (RRA)     compact state     deployed state     enhanced gain    

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A Planar 4-Bit Reconfigurable Antenna Array Based on the Design Philosophy of Information Metasurfaces Article

Zheng Xing Wang, Hanqing Yang, Ruiwen Shao, Jun Wei Wu, Guobiao Liu, Feng Zhai, Qiang Cheng, Tie Jun Cui

Engineering 2022, Volume 17, Issue 10,   Pages 64-74 doi: 10.1016/j.eng.2022.03.019

Abstract: the design philosophy of information metasurfaces based on the digital coding concept, a planar 4-bit reconfigurableantenna array with low profile of 0.15 λ0 (where λ0array is based on a digital coding radiation element consisting of a 1-bit magnetoelectric (ME) dipoleA prototype of the proposed 4-bit antenna array has been fabricated and tested, and the experimentalDue to its outstanding performance, the array holds potential for significant applications in radar and

Keywords： 4-Bit reconfigurable antenna array     Information metasurface     Digital coding method     Low sidelobe     Low    

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Optimal array factor radiation pattern synthesis for linear antenna array using cat swarm optimization Article

Gopi RAM, Durbadal MANDAL, Sakti Prasad GHOSHAL, Rajib KAR

Frontiers of Information Technology & Electronic Engineering 2017, Volume 18, Issue 4,   Pages 570-577 doi: 10.1631/FITEE.1500371

Abstract: Cat swarm optimization (CSO) has been applied for the optimization of the control parameters of radiationpattern of an antenna array.The optimal radiation patterns of isotropic antenna elements are obtained by optimizing the current excitation

Keywords： Patch antenna     Linear antenna array     Cat swarm optimization (CSO)     Side lobe level (SLL)    

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Pattern reconfigurable antenna array for 5.8 GHz WBAN applications

杨凌升,王斌,李雅洁

Frontiers of Information Technology & Electronic Engineering 2023, Volume 24, Issue 9,   Pages 1357-1365 doi: 10.1631/FITEE.2200542

Abstract: 本文提出一种适用于5.8 GHz WBAN应用的方向图可重构天线阵列。天线阵列由辐射组件和控制网络组件组成。辐射组件包括4个平面F型天线，它们位于上层的4个角上，彼此逆时针旋转90°。控制网络组件位于底层，包括一个4端口可控网络。通过控制集成在可控网络中的PIN二极管，可以获得与人体表面相切的全向辐射图和与人体表面垂直的定向辐射图。我们测量了阵列安装在人体或前臂假体上时的阻抗带宽、辐射模式和增益，实验结果与仿真结果一致。同时仿真了两种辐射模式下的电磁波吸收比值（SAR）和波束切换能力，以确保该阵列的实用性。

Keywords： 无线体域网     方向图可重构     PIN二极管     控制网络     比吸收率    

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A zone-layered trimming method for ceramic core of aero-engine blade based on an advanced reconfigurable

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 2, doi: 10.1007/s11465-022-0675-5

Abstract: Ceramic structural parts are one of the most widely utilized structural parts in the industry. However, they usually contain defects following the pressing process, such as burrs. Therefore, additional trimming is usually required, despite the deformation challenges and difficulty in positioning. This paper proposes an ultrafast laser processing system for trimming complex ceramic structural parts. Opto-electromechanical cooperative control software is developed to control the laser processing system. The trimming problem of the ceramic cores used in aero engines is studied. The regional registration method is introduced based on the iterative closest point algorithm to register the path extracted from the computer-aided design model with the deformed ceramic core. A zonal and layering processing method for three-dimensional contours on complex surfaces is proposed to generate the working data of high-speed scanning galvanometer and the computer numerical control machine tool, respectively. The results show that the laser system and the method proposed in this paper are suitable for trimming complex non-datum parts such as ceramic cores. Compared with the results of manual trimming, the method proposed in this paper has higher accuracy, efficiency, and yield. The method mentioned above has been used in practical application with satisfactory results.

Keywords： ceramic parts trimming     computer-aided laser manufacturing     3D vision     reconfigurable laser processing    

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Recent development on innovation design of reconfigurable mechanisms in China

Wuxiang ZHANG, Shengnan LU, Xilun DING

Frontiers of Mechanical Engineering 2019, Volume 14, Issue 1,   Pages 15-20 doi: 10.1007/s11465-018-0517-7

Abstract: Reconfigurable mechanisms can deliberately reconfigure themselves by rearranging the connectivity ofMetamorphic and origami-derived mechanisms are two kinds of typical reconfigurable mechanisms, whichImproving the independent design level, innovation, and international competitive powers of reconfigurableThis paper presents an overview of recent developments in innovation design of reconfigurable mechanisms

Keywords： innovation design     reconfigurable mechanisms     metamorphic mechanisms     origami-derived mechanisms     development    

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Distributed flexible reconfigurable condition monitoring and diagnosis technology

HU You-min, YANG Shu-zi, DU Run-sheng

Frontiers of Mechanical Engineering 2006, Volume 1, Issue 3,   Pages 276-281 doi: 10.1007/s11465-006-0025-z

Abstract: As manufacturing becomes increasingly decentralized, flexible and reconfigurable, more research needsThe distributed condition monitoring and diagnosis technology based on the flexible and reconfigurableA condition monitoring diagnosis model based on the distributed flexible and reconfigurable idea is proposed

Keywords： chemical     diagnosis system     configuration     monitoring     equipment    

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Modular structure of a self-reconfigurable robot

FEI Yanqiong, DONG Qinglei, ZHAO Xifang

Frontiers of Mechanical Engineering 2007, Volume 2, Issue 1,   Pages 116-119 doi: 10.1007/s11465-007-0020-z

Abstract: This paper proposes a novel, hermaphroditic, and lattice self-reconfigurable modular robot.

Keywords： compact     self-reconfigurable modular     hermaphroditic     cone-shaped     clutch    

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Module-based method for design and analysis of reconfigurable parallel robots

Fengfeng XI, Yuwen LI, Hongbo WANG

Frontiers of Mechanical Engineering 2011, Volume 6, Issue 2,   Pages 151-159 doi: 10.1007/s11465-011-0121-6

Abstract:

This paper presents a method for the design and analysis of reconfigurable parallel robots.taking the branches as building blocks, many modular parallel robots can be constructed, from which a reconfigurableIt is shown that the module-based method not only provides a systematic way of designing a reconfigurable

Keywords： reconfigurable parallel robot     topology morphing     group morphing    

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Generation of closed-form inverse kinematics for reconfigurable robots

ZHAO Jie, WANG Weizhong, GAO Yongsheng, CAI Hegao

Frontiers of Mechanical Engineering 2008, Volume 3, Issue 1,   Pages 91-96 doi: 10.1007/s11465-008-0013-6

Abstract: For reconfigurable robots, the automatic generation of inverse kinematics is a key problem, because suchthis paper, the screw and product-of-exponentials (POE) formula are used to model the kinematics of reconfigurableA generalized, decomposable, and reusable approach for close-form inverse kinematics of reconfigurable

Keywords： different     effectiveness     generation     reconfigurable     algebraic    

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Particle therapy for cancers: a new weapon in radiation therapy

Guo-Liang Jiang

Frontiers of Medicine 2012, Volume 6, Issue 2,   Pages 165-172 doi: 10.1007/s11684-012-0196-4

Abstract: Particle irradiation started to draw attention in the past decade and has now become a hotspot in the radiationdevelopments in particle irradiation, focusing on the characteristics of proton and carbon ions in radiationCompared with the most advanced radiation techniques using photon, such as three-dimensional conformalradiation therapy and intensity-modulated radiation therapy, proton therapy has yielded more promising

Keywords： radiation therapy     particle therapy     proton     carbon     cancer    

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Reconfigurable manufacturing systems: Principles, design, and future trends

Yoram KOREN, Xi GU, Weihong GUO

Frontiers of Mechanical Engineering 2018, Volume 13, Issue 2,   Pages 121-136 doi: 10.1007/s11465-018-0483-0

Abstract:

Reconfigurable manufacturing systems (RMSs), which possess the advantages of both dedicated serial

Keywords： reconfigurable manufacturing systems     responsiveness     intelligent manufacturing    

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Dimensional synthesis of a novel 5-DOF reconfigurable hybrid perfusion manipulator for large-scale spherical

Hui YANG, Hairong FANG, Yuefa FANG, Xiangyun LI

Frontiers of Mechanical Engineering 2021, Volume 16, Issue 1,   Pages 46-60 doi: 10.1007/s11465-020-0606-2

Abstract: prismatic, revolute, universal and spherical joint, respectively) parallel mechanism with the 5PRR reconfigurableThe values of the designed variables corresponding to different configurations of the reconfigurableHPM with the optimized parameters has an enlarged orientation workspace, and the maximum angle of the reconfigurable

Keywords： 5-DOF hybrid manipulator     reconfigurable base     large workspace     dimensional synthesis     optimal design    

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Analysis of radiation heat transfer and temperature distributions of solar thermochemical reactor for

Bachirou GUENE LOUGOU, Yong SHUAI, Xiang CHEN, Yuan YUAN, Heping TAN, Huang XING

Frontiers in Energy 2017, Volume 11, Issue 4,   Pages 480-492 doi: 10.1007/s11708-017-0506-2

Abstract: This paper investigated radiation heat transfer and temperature distributions of solar thermochemicalsyngas production using the finite volume discrete ordinate method (fvDOM) and P1 approximation for radiationThe fvDOM approximation was used to obtain the radiation intensity distribution along the reactor.The drop in the temperature resulted from the radiation scattering was further investigated using theto the thermal non-equilibrium was observed in the radiation inlet region.

Keywords： solar thermochemical reactor     incident radiation flux     temperature distribution     radiation absorptivity     radiation emissivity     thermal performance analysis    

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Security of solar radiation management geoengineering

Andrew LOCKLEY

Frontiers of Engineering Management 2019, Volume 6, Issue 1,   Pages 102-116 doi: 10.1007/s42524-019-0008-5

Abstract:

Solar Radiation Management (SRM) geoengineering is a proposed response to anthropogenic global warming

Keywords： security     geoengineering     solar radiation ma-nagement     SRM    

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Title Author Date Type Operation

Gain-enhanced reconfigurable radiation array with mechanically driven system and directive elements

Journal Article

A Planar 4-Bit Reconfigurable Antenna Array Based on the Design Philosophy of Information Metasurfaces

Zheng Xing Wang, Hanqing Yang, Ruiwen Shao, Jun Wei Wu, Guobiao Liu, Feng Zhai, Qiang Cheng, Tie Jun Cui

Journal Article

Optimal array factor radiation pattern synthesis for linear antenna array using cat swarm optimization

Gopi RAM, Durbadal MANDAL, Sakti Prasad GHOSHAL, Rajib KAR

Journal Article

Pattern reconfigurable antenna array for 5.8 GHz WBAN applications

杨凌升,王斌,李雅洁

Journal Article

A zone-layered trimming method for ceramic core of aero-engine blade based on an advanced reconfigurable

Journal Article

Recent development on innovation design of reconfigurable mechanisms in China

Wuxiang ZHANG, Shengnan LU, Xilun DING

Journal Article

Distributed flexible reconfigurable condition monitoring and diagnosis technology

HU You-min, YANG Shu-zi, DU Run-sheng

Journal Article

Modular structure of a self-reconfigurable robot

FEI Yanqiong, DONG Qinglei, ZHAO Xifang

Journal Article

Module-based method for design and analysis of reconfigurable parallel robots

Fengfeng XI, Yuwen LI, Hongbo WANG

Journal Article

Generation of closed-form inverse kinematics for reconfigurable robots

ZHAO Jie, WANG Weizhong, GAO Yongsheng, CAI Hegao

Journal Article

Particle therapy for cancers: a new weapon in radiation therapy

Guo-Liang Jiang

Journal Article

Reconfigurable manufacturing systems: Principles, design, and future trends

Yoram KOREN, Xi GU, Weihong GUO

Journal Article

Dimensional synthesis of a novel 5-DOF reconfigurable hybrid perfusion manipulator for large-scale spherical

Hui YANG, Hairong FANG, Yuefa FANG, Xiangyun LI

Journal Article

Analysis of radiation heat transfer and temperature distributions of solar thermochemical reactor for

Bachirou GUENE LOUGOU, Yong SHUAI, Xiang CHEN, Yuan YUAN, Heping TAN, Huang XING

Journal Article

Security of solar radiation management geoengineering

Andrew LOCKLEY

Journal Article