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Preliminary Investigation of the Reversible 4D Printing of a Dual-Layer Component Article

Amelia Yilin Lee, Jia An, Chee Kai Chu, Yi Zhang

Engineering 2019, Volume 5, Issue 6,   Pages 1159-1170 doi: 10.1016/j.eng.2019.09.007

Abstract: manufacturing and advances in shape memory materials have fueled the progress of four-dimensional (4D) printing.With increasing improvements in design, reversible 4D printing—or two-way 4D printing—hasThis study proposes a new reversible 4D printing actuation method.This understanding of the curvature will provide a great degree of control over the reversible 4D-printed

Keywords： 4D printing     Additive manufacturing     Shape memory polymer     Reversible 4D printing     Two-way 4D printing    

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Two-Way 4D Printing: A Review on the Reversibility of 3D-Printed Shape Memory Materials

Amelia Yilin Lee, Jia An, Chee Kai Chua

Engineering 2017, Volume 3, Issue 5,   Pages 663-674 doi: 10.1016/J.ENG.2017.05.014

Abstract: Conventional one-way 4D printing requires human interaction in the programming (or shape-setting) phase, but reversible 4D printing, or two-way 4D printing, will fully eliminate the need for human interference, current findings regarding 4D printing in alloys and polymers, and their respective limitations.For reversible 4D printing, the methods of 3D printing, mechanisms used for actuation, and strategiesFinally, prospective future research directions in reversible 4D printing are suggested.

Keywords： 4D printing     Additive manufacturing     Shape memory material     Smart materials     Shape memory alloy     Shape memory    

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Laws of 4D Printing Article

Farhang Momeni, Jun Ni

Engineering 2020, Volume 6, Issue 9,   Pages 1035-1055 doi: 10.1016/j.eng.2020.01.015

Abstract: Accordingly, four-dimensional (4D) printing is a manufacturing process that involves multiple researchfields. 4D printing conserves the general attributes of 3D printing (such as material waste reduction4D multi-materials.introduce the concept of mismatch-driven stress at the interface of active and passive materials in 4Dwith governing equations can serve as general design principles for future research in the field of 4D

Keywords： Manufacturing     Stimuli-responsive materials     Mechanics of materials     Time constant     4D printing    

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Development of Bioimplants with 2D, 3D, and 4D Additive Manufacturing Materials Review

Guo Liu, Yunhu He, Pengchao Liu, Zhou Chen, Xuliang Chen, Lei Wan, Ying Li, Jian Lu

Engineering 2020, Volume 6, Issue 11,   Pages 1232-1243 doi: 10.1016/j.eng.2020.04.015

Abstract: In this work, 2D/3D AM materials for bioimplants are reviewed.Furthermore, inspired by Tai Chi, a simple yet novel soft/rigid hybrid 4D AM concept is advanced to developcomplex and dynamic biological structures in the human body based on 4D printing hybrid ceramic precursorWith the development of multi-material printing technology, the development of bioimplants and soft/rigidhybrid biological structures with 2D/3D/4D AM materials can be anticipated.

Keywords： Bioprinting     2D additive manufacturing     3D printing     4D printing     Bioimplants    

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System Simulation for Large-scale Bridge Construction Schedule Based on 4D CAD

Zhang Zhengfeng,Fu Jinqiang,Wu Kangxin,Zhang Fayu

Strategic Study of CAE 2006, Volume 8, Issue 1,   Pages 63-66

Abstract: system with the CAD digital modeling technology, the system simulation of bridge construction based upon 4DCAD was presented, which linked a 3D model of a construction project with a project activity scheduleAnd the corresponding software of visualization simulating system, based on 4D CAD, for construction

Keywords： construction schedule     system simulation     4D CAD     cable-stayed bridge    

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Adaptive robust beamformer formulti-pair two-way relay networks with imperfect channel state information

Jin WANG,Feng SHU,Ri-qing CHEN,Yu-di CUI,Yu CHEN,Jun LI

Frontiers of Information Technology & Electronic Engineering 2016, Volume 17, Issue 3,   Pages 265-280 doi: 10.1631/FITEE.1500134

Abstract: In wideband multi-pair two-way relay networks, the performance of beamforming at a relay station (RS)

Keywords： Multi-pair two-way relay     Adaptive robust beamformer     Channel state information (CSI)     Maximum signal-to-interference-and-noise    

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Performance analysis for a two-way relaying power line networkwith analog network coding

Yu-wen QIAN,Meng TIAN,Xue JIANG,Hua-ju SONG,Feng SHU,Jun LI

Frontiers of Information Technology & Electronic Engineering 2015, Volume 16, Issue 10,   Pages 892-898 doi: 10.1631/FITEE.1500135

Abstract: In this paper, we investigate a two-way relaying power line communication (PLC) network with analog network

Keywords： Power line communication     Outage probability     Symbol error rate     Signal attenuation    

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Identifying stakeholders’ roles and relevant project documents for 4D-based collaborative decision making

Veronika BOLSHAKOVA, Annie GUERRIERO, Gilles HALIN

Frontiers of Engineering Management 2020, Volume 7, Issue 1,   Pages 104-118 doi: 10.1007/s42524-019-0041-4

Abstract: To fully understand and effectively implement 4D building information modelling (BIM) models and methodsThis article studies the convergence between uses of 4D BIM and digital project documents.We hypothesize that a clear visualization of the construction simulation through a 4D model is a usefulIt then introduces a proposition for 4D BIM uses implementation by the project development phase.It concludes by summarizing stakeholders’ roles and documents relevant to 4D BIM uses.

Keywords： BIM     4D BIM     4D BIM use     AEC project management     collaboration     decision making    

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Semidefinite relaxation aided noncoherent detection in two-way relay transmission Regular Papers-Research Articles

Chan-fei WANG, Ji-ai HE, Wei-fang WANG, Ya-mei XU

Frontiers of Information Technology & Electronic Engineering 2019, Volume 20, Issue 9,   Pages 1259-1265 doi: 10.1631/FITEE.1800096

Abstract: A high-performance noncoherent transmission scheme is proposed in the broadcasting phase of a twoway relay transmission (TWRT), where multiple-symbol differential detection (MSDD) is performed because of its excellent detection performance with no channel estimation. Specifically, the generalized likelihood ratio test aided MSDD (GLRT-MSDD) is developed for the down-link. Furthermore, GLRT-MSDD is reformulated and a semidefinite relaxation aided MSDD (SDR-MSDD) is proposed. The reformulation of GLRT-MSDD to SDR-MSDD is desirable owing to its reduced complexity. Performance analysis and the simulations validate that the proposed SDR-MSDD provides the bit-error-rate performance close to that of GLRT-MSDD with reasonable complexity in TWRT.

Keywords： Multiple-symbol differential detection     Generalized likelihood ratio test     Semidefinite relaxation     Two-way    

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Semantics for linking data from 4D BIM to digital collaborative support

Calin BOJE, Veronika BOLSHAKOVA, Annie GUERRIERO, Sylvain KUBICKI, Gilles HALIN

Frontiers of Engineering Management 2022, Volume 9, Issue 1,   Pages 104-116 doi: 10.1007/s42524-020-0111-7

Abstract: Synchronous collaboration sessions within the context of 4D BIM position construction professionals intoThe model is designed by considering various 4D BIM model uses while a digital multiuser touch tableAlthough 4D BIM model data can be imported by using standard formats, capturing data about the social

Keywords： 4D BIM     ontology     IFC     decision-making     linked data     collaboration     planning    

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Liquid metal printing opening the way for energy conservation in semiconductor manufacturing industry

Frontiers in Energy 2022, Volume 16, Issue 4,   Pages 542-547 doi: 10.1007/s11708-022-0834-8

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Anovel resource optimization scheme for multi-cellOFDMArelay network Article

Ning DU,Fa-sheng LIU

Frontiers of Information Technology & Electronic Engineering 2016, Volume 17, Issue 8,   Pages 825-833 doi: 10.1631/FITEE.1500294

Abstract: In this case, a BS can behave as a two-way relay to achieve information exchange instead of using conventionalconsider a multi-cell orthogonal frequency division multiple access (OFDMA) network that comprises these two

Keywords： Intra-cell communication     Two-way relay     Subcarrier assignment     Subcarrier pairing    

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A Theoretical Summary and Mathematics Expression on the Regulation of Life in Meridian (Jing-Iuo) Science

Zhang Renxiang,Zhang Renji

Strategic Study of CAE 2005, Volume 7, Issue 4,   Pages 42-46

Abstract:

The meridian (Jing-Luo) is a core principle of Chinese medicine. The meridian plays a central role in the regulation of human health and vitality. In the past 50 years,the scientific evidence has been gathered via physiological experiments to confirm the biological basis of the human meridian pathway phenomenon. Meridian Science has been established as a new branch of natural science to advance and promote the study of this important phenomenon for human life. In this paper, the authors describe the theoretical concept of the meridian and mathematics expression, its relationship to an efficient meridian circadian cycle, and its significance to human life.

Keywords： Chinese natural comprehension     meridian science     principal of bi-way transforming modulation in symmetryand asymmetry     diagram of 4D meridian circulation     efficiency of meridian linking up    

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THE 4C APPROACH AS A WAY TO UNDERSTAND SPECIES INTERACTIONS DETERMINING INTERCROPPING PRODUCTIVITY

Frontiers of Agricultural Science and Engineering 2021, Volume 8, Issue 3,   Pages 387-399 doi: 10.15302/J-FASE-2021414

Abstract: Species mixtures are complex and the 4C approach is both a pedagogical and scientific way to representThe 4C approach allows to assess the performance of arable intercropping versus classical sole cropping

Keywords： compensation     competition     complementarity     cooperation     interspecific interactions     land equivalent ratio     light     nutrients     species mixtures     water    

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Title Author Date Type Operation

Preliminary Investigation of the Reversible 4D Printing of a Dual-Layer Component

Amelia Yilin Lee, Jia An, Chee Kai Chu, Yi Zhang

Journal Article

Two-Way 4D Printing: A Review on the Reversibility of 3D-Printed Shape Memory Materials

Amelia Yilin Lee, Jia An, Chee Kai Chua

Journal Article

Laws of 4D Printing

Farhang Momeni, Jun Ni

Journal Article

Development of Bioimplants with 2D, 3D, and 4D Additive Manufacturing Materials

Guo Liu, Yunhu He, Pengchao Liu, Zhou Chen, Xuliang Chen, Lei Wan, Ying Li, Jian Lu

Journal Article

System Simulation for Large-scale Bridge Construction Schedule Based on 4D CAD

Zhang Zhengfeng,Fu Jinqiang,Wu Kangxin,Zhang Fayu

Journal Article

Adaptive robust beamformer formulti-pair two-way relay networks with imperfect channel state information

Jin WANG,Feng SHU,Ri-qing CHEN,Yu-di CUI,Yu CHEN,Jun LI

Journal Article

Performance analysis for a two-way relaying power line networkwith analog network coding

Yu-wen QIAN,Meng TIAN,Xue JIANG,Hua-ju SONG,Feng SHU,Jun LI

Journal Article

Identifying stakeholders’ roles and relevant project documents for 4D-based collaborative decision making

Veronika BOLSHAKOVA, Annie GUERRIERO, Gilles HALIN

Journal Article

Semidefinite relaxation aided noncoherent detection in two-way relay transmission

Chan-fei WANG, Ji-ai HE, Wei-fang WANG, Ya-mei XU

Journal Article

Lv Jian: Recent Development of Additive Manufacturing of Nanomaterials and 4D Printing Structures（2019

吕坚(院士)

20 Jan 2021

Conference Videos

Semantics for linking data from 4D BIM to digital collaborative support

Calin BOJE, Veronika BOLSHAKOVA, Annie GUERRIERO, Sylvain KUBICKI, Gilles HALIN

Journal Article

Liquid metal printing opening the way for energy conservation in semiconductor manufacturing industry

Journal Article

Anovel resource optimization scheme for multi-cellOFDMArelay network

Ning DU,Fa-sheng LIU

Journal Article

A Theoretical Summary and Mathematics Expression on the Regulation of Life in Meridian (Jing-Iuo) Science

Zhang Renxiang,Zhang Renji

Journal Article

THE 4C APPROACH AS A WAY TO UNDERSTAND SPECIES INTERACTIONS DETERMINING INTERCROPPING PRODUCTIVITY

Journal Article