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Several New Semiconductor Lasers and Status, Challenges and Insights of Related Industries

Wei Xin, Li Ming, Li Jian, Wang Chao, Li Chuanchuan

Strategic Study of CAE 2020, Volume 22, Issue 3,   Pages 21-28 doi: 10.15302/J-SSCAE-2020.03.004

Abstract: The semiconductor lasers are widely used in industrial, military, and living consumption fields suchquality, device volume, power consumption, modulation speed, and output power of the semiconductor lasersThis paper introduces several rapidly developed new semiconductor lasers by comparing their physicalThe performance of the semiconductor lasers should be optimized in a closed-loop manner relying on the, micro-nano lasers, and topological insulator lasers and conduct mass production and controllable production

Keywords： semiconductor lasers，optically pumped vertical external cavity surface emitting lasers，nanolasers，topologicalinsulator lasers    

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Mortarless structures based on topological interlocking

Arcady V. DYSKIN, Elena PASTERNAK, Yuri ESTRIN

Frontiers of Structural and Civil Engineering 2012, Volume 6, Issue 2,   Pages 188-197 doi: 10.1007/s11709-012-0156-8

Abstract: We review the principle of topological interlocking and analyze the properties of the mortarless structures

Keywords： topological interlocking     fragmented structures     segmented structures     constraint     delamination     bending stiffness    

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Description and reasoning of integrated topological and directional relation of bodies in 3D space

Liu Xin,Li Chengming and Liu Wenbao

Strategic Study of CAE 2013, Volume 15, Issue 5,   Pages 8-13

Abstract: The topological directional regions were described by Allen interval pair[(R1,R2,R3)], where R1,R2 andAccording to definition of integrated topological and direction relation, the qualitative reasoning ofintegrated topological and directional relations were studied.Empirical examples were provided to show the qualitative reasoning process and results of topologicalCombined tables of the integrated topological and directional relations were obtained when the topological

Keywords： spatial relation     topological relation     direction relation     integrated topological and direction relation    

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Application of a vertex chain operation algorithm on topological analysis of three-dimensional fractured

Zixin ZHANG, Jia WU, Xin HUANG

Frontiers of Structural and Civil Engineering 2017, Volume 11, Issue 2,   Pages 187-208 doi: 10.1007/s11709-017-0391-0

Abstract: Identifying the morphology of rock blocks is vital to accurate modelling of rock mass structures. This paper applies the concepts of directed edges and vertex chain operations which are typical for block tracing approach to block assembling approach to construct the structure of three-dimensional fractured rock masses. Polygon subtraction and union algorithms that rely merely on vertex chain operation are proposed, which allow a fast and convenient construction of complex faces/loops. Apart from its robustness in dealing with finite discontinuities and complex geometries, the advantages of the current methodology in tackling some challenging issues associated with the morphological analysis of rock blocks are addressed. In particular, the identification of complex blocks with interior voids such as cavity, pit and torus can be readily achieved based on the number and the type of loops. The improved morphology visualization approach can benefit the pre-processing stage when analyzing the stability of rock masses subject to various engineering impacts using the block theory and the discrete element method.

Keywords： morphology     block assembling     vertex operation     discontinuities    

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“Charging” the cigarette butt: heteroatomic porous carbon nanosheets with edge-induced topological defects

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 11,   Pages 1755-1764 doi: 10.1007/s11705-023-2318-8

Abstract: oxygen evolution reaction by facilitating the adsorption of oxygenated intermediates by the edge-induced topological

Keywords： oxygen evolution reaction     porous carbon nanosheets     Co nanoparticles     edge-induced topological defects    

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Virtual network embedding based on real-time topological attributes

Jian DING,Tao HUANG,Jiang LIU,Yun-jie LIU

Frontiers of Information Technology & Electronic Engineering 2015, Volume 16, Issue 2,   Pages 109-118 doi: 10.1631/FITEE.1400147

Abstract: of a node, such as CPU capacity and bandwidth, to determine how to map a VN, without considering the topologicalIn this paper, a new embedding algorithm is proposed based on real-time topological attributes.

Keywords： Virtual network embedding (VNE)     Real-time topological attributes     Betweenness centrality     Correlation    

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Characters of topological relations and its applications in spatial reasoning

Li Chengming and Liu Xiaoli

Strategic Study of CAE 2013, Volume 15, Issue 5,   Pages 14-19

Abstract:

In the paper,the formal representation of topological relationships areBased on these characters, the results for com-posite topological relations are introduced.

Keywords： topological relationship     composite of topological relations     spatial reasoning     algbra reasoning     logical    

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Topological reorganization and functional alteration of distinct genomic components in gallbladder cancer

Frontiers of Medicine doi: 10.1007/s11684-023-1008-8

Abstract: However, knowledge of the topological rearrangement of genomic hierarchical layers in cancer is largely

Keywords： 3D genome     cancer     TADs     loop     gene regulation    

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Sb2Te3 topological insulator for 52 nm wideband tunable Yb-doped passively Q-switched Research

Tao Wang, Qiang Yu, Kun Guo, Xinyao Shi, Xuefen Kan, Yijun Xu, Jian Wu, Kai Zhang, Pu Zhou,wujian15203@163.com,kzhang2015@sinano.ac.cn

Frontiers of Information Technology & Electronic Engineering 2021, Volume 22, Issue 3,   Pages 287-436 doi: 10.1631/FITEE.2000577

Abstract: has the advantage of broadband saturable absorption from the visible to the infrared bands. Herein, the two-dimensional material saturable absorber (SA) of the family was first applied experimentally in a wideband tunable passively Q-switched Yb-doped fiber laser. High-quality crystals were synthesized by the flux zone method. The SA with fewer layers was further prepared via a modified mechanical exfoliation procedure. Meanwhile, stable wavelength-tunable passive Q-switching pulse operation was obtained in a Yb-doped fiber ring cavity based on the SA, where the central wavelength can be continuously tuned from 1040.89 to 1092.85 nm. Results suggest that has wideband saturable absorption properties, and that the tunable pulse laser can provide a convenient and simple source for practical applications.

Keywords： 拓扑绝缘体；Sb2Te3；光纤激光；被动调Q激光；波长可调谐激光    

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Pushing the Data Capacity Limit with Lasers on Silicon

Peter Weiss

Engineering 2019, Volume 5, Issue 5,   Pages 824-825 doi: 10.1016/j.eng.2019.08.011

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Symptom network topological features predict the effectiveness of herbal treatment for pediatric cough

Mengxue Huang, Jingjing Wang, Runshun Zhang, Zhuying Ni, Xiaoying Liu, Wenwen Liu, Weilian Kong, Yao Chen, Tiantian Huang, Guihua Li, Dan Wei, Jianzhong Liu, Xuezhong Zhou

Frontiers of Medicine 2020, Volume 14, Issue 3,   Pages 357-367 doi: 10.1007/s11684-019-0699-3

Abstract: Pediatric cough is a heterogeneous condition in terms of symptoms and the underlying disease mechanisms. Symptom phenotypes hold complicated interactions between each other to form an intricate network structure. This study aims to investigate whether the network structure of pediatric cough symptoms is associated with the prognosis and outcome of patients. A total of 384 cases were derived from the electronic medical records of a highly experienced traditional Chinese medicine (TCM) physician. The data were divided into two groups according to the therapeutic effect, namely, an invalid group (group A with 40 cases of poor efficacy) and a valid group (group B with 344 cases of good efficacy). Several well-established analysis methods, namely, statistical test, correlation analysis, and complex network analysis, were used to analyze the data. This study reports that symptom networks of patients with pediatric cough are related to the effectiveness of treatment: a dense network of symptoms is associated with great difficulty in treatment. Interventions with the most different symptoms in the symptom network may have improved therapeutic effects.

Keywords： pediatric cough     complex network     symptoms     traditional Chinese medicine     electronic medical records    

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Optoelectronic Crystals, All-Solid-State Lasers and their Applications——An Important Course of Optoelectronics

Xu Zuyan

Strategic Study of CAE 1999, Volume 1, Issue 2,   Pages 72-77

Abstract: advances in optoelectronic crystals and breakthroughs in laser diode technology have made all-solid-state lasers

Keywords： optoelectronic crystals     all-solid-state lasers     material processing     optical storage     laser displays     laser    

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Conceptual design of compliant mechanisms using level set method

Shi-kui CHEN, Michael Yu WANG

Frontiers of Mechanical Engineering 2006, Volume 1, Issue 2,   Pages 131-145 doi: 10.1007/s11465-006-0018-y

Abstract: The application of level set methods endows the optimization process with the particular quality that topological

Keywords： splitting     minimum     dimensional optimization     Hamilton-Jacobi     topological    

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Experimental study of pollution effect on the behavior of high voltage insulators under alternative current

Hani BENGUESMIA, Nassima M’ZIOU, Ahmed BOUBAKEUR

Frontiers in Energy 2021, Volume 15, Issue 1,   Pages 213-221 doi: 10.1007/s11708-017-0479-1

Abstract: the impact of the conductivity and the distribution of pollution on the behavior of the high voltage insulatorThis experimental model reproduces the real model which is the 1512L insulator.distilled water) that has different conductivities for a discontinuous distribution of the pollution on the insulatorFinally, the behavior of real and experimental model of the insulator is investigated.

Keywords： 1512L insulator     circular model     artificial pollution     flashover     leakage current     discontinuous pollution    

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Development of lunar regolith composite and structure via laser-assisted sintering

Frontiers of Mechanical Engineering doi: 10.1007/s11465-021-0662-2

Abstract: Aiming at the exploration and resource utilization activities on the Moon, in situ resource utilization and in situ manufacturing are proposed to minimize the dependence on the ground transportation supplies. In this paper, a laser-assisted additive manufacturing process is developed to fabricate lunar regolith composites with PA12/SiO2 mixing powders. The process parameters and composite material compositions are optimized in an appropriate range through orthogonal experiments to establish the relationship of process–structure–property for lunar regolith composites. The optimal combination of composite material compositions and process parameters are mixing ratio of 50/50 in volume, laser power of 30 W, scanning speed of 3500 mm/s, and scanning hatch space of 0.2 mm. The maximum tensile strength of lunar regolith composites reaches 9.248 MPa, and the maximum depth of surface variation is 120.79 μm, which indicates poor powder fusion and sintering quality. Thereafter, the mechanical properties of laser-sintered lunar regolith composites are implemented to the topology optimization design of complex structures. The effectiveness and the feasibility of this laser-assisted process are potentially developed for future lightweight design and manufacturing of the solar panel installed on the lunar rover.

Keywords： in situ manufacturing     laser-assisted powder fusion process     mechanical properties     topological    

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Title Author Date Type Operation

Several New Semiconductor Lasers and Status, Challenges and Insights of Related Industries

Wei Xin, Li Ming, Li Jian, Wang Chao, Li Chuanchuan

Journal Article

Mortarless structures based on topological interlocking

Arcady V. DYSKIN, Elena PASTERNAK, Yuri ESTRIN

Journal Article

Description and reasoning of integrated topological and directional relation of bodies in 3D space

Liu Xin,Li Chengming and Liu Wenbao

Journal Article

Application of a vertex chain operation algorithm on topological analysis of three-dimensional fractured

Zixin ZHANG, Jia WU, Xin HUANG

Journal Article

“Charging” the cigarette butt: heteroatomic porous carbon nanosheets with edge-induced topological defects

Journal Article

Virtual network embedding based on real-time topological attributes

Jian DING,Tao HUANG,Jiang LIU,Yun-jie LIU

Journal Article

Characters of topological relations and its applications in spatial reasoning

Li Chengming and Liu Xiaoli

Journal Article

Topological reorganization and functional alteration of distinct genomic components in gallbladder cancer

Journal Article

Sb2Te3 topological insulator for 52 nm wideband tunable Yb-doped passively Q-switched

Tao Wang, Qiang Yu, Kun Guo, Xinyao Shi, Xuefen Kan, Yijun Xu, Jian Wu, Kai Zhang, Pu Zhou,wujian15203@163.com,kzhang2015@sinano.ac.cn

Journal Article

Pushing the Data Capacity Limit with Lasers on Silicon

Peter Weiss

Journal Article

Symptom network topological features predict the effectiveness of herbal treatment for pediatric cough

Mengxue Huang, Jingjing Wang, Runshun Zhang, Zhuying Ni, Xiaoying Liu, Wenwen Liu, Weilian Kong, Yao Chen, Tiantian Huang, Guihua Li, Dan Wei, Jianzhong Liu, Xuezhong Zhou

Journal Article

Optoelectronic Crystals, All-Solid-State Lasers and their Applications——An Important Course of Optoelectronics

Xu Zuyan

Journal Article

Conceptual design of compliant mechanisms using level set method

Shi-kui CHEN, Michael Yu WANG

Journal Article

Experimental study of pollution effect on the behavior of high voltage insulators under alternative current

Hani BENGUESMIA, Nassima M’ZIOU, Ahmed BOUBAKEUR

Journal Article

Development of lunar regolith composite and structure via laser-assisted sintering

Journal Article