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Chen, S. B.; Zhang, Y.; Qiu, Tian; Lin, Tao

doi:10.1023/a:1022652706683

Cited by 65 publications

(9 citation statements)

References 12 publications

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“…Recently the bound on the relative entropy of entanglement was calculated for two modes squeezed symmetric thermal state. 16 In this paper, I will consider the more practical used state of two mode symmetric Gaussian state (different from that considered by Giedke 10 ), which is to be distributed between two parties by means of a lossy optical fiber in asymmetric setting for an initial two mode squeezed vacuum state. 17 I will concentrate on its Gaussian entanglement of formation and its upper bound of relative entropy of entanglement.…”

Section: Introductionmentioning

confidence: 99%

Entanglement Bounds for a Family of Two-Mode Gaussian States

Jiang¹

2004

Int. J. Quantum Inform.

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I study a family of bipartite quantum Gaussian states with three parameters, calculate Gaussian entanglement of formation analytically and the upper bound of relative entropy of entanglement, compare them with the coherent information of the states. Based on the numerical observation, I determine the relative entropy of entanglement and distillable entanglement of the states with infinitive squeezing.

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Section: Introductionmentioning

confidence: 99%

Entanglement Bounds for a Family of Two-Mode Gaussian States

Jiang¹

2004

Int. J. Quantum Inform.

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“…Para esse fim, utilizam-se métodos controle dos parâmetros da soldagem baseados na captura de dados do processo e de imagens da poça de fusão. Como exemplo, [19], [20] e [21] desenvolveram métodos controle do processo de soldagem a partir da aquisição das imagens da poça de fusão e informações sobre a largura e profundidade da poça. No primeiro trabalho [19] foram adotadas novas técnica de sensoriamento e inteligência artificial para garantir a estabilidade da soldagem por meio do controle da profundidade de penetração e da geometria da poça de fusão.…”

Section: Controle De Parâmetros De Solda Robotizada a Partir De Siste...unclassified

Evolução dos Processos de Automação em Células de Soldagem: Uma Revisão da Literatura

2022

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Resumo: O processo de soldagem é um método de união de materiais metálicos por meio do aquecimento até uma temperatura adequada. Esse processo é crucial na manufatura de diversos componentes, desde a microeletrônica até componentes estruturais de máquinas pesadas. Com o advento da automação industrial, houve o início da utilização de robôs de solda na indústria, visando uma maior produtividade, qualidade e acuracidade do processo. A partir do século XXI, com a chegada da Indústria 4.0, é possível enxergar novas oportunidades de melhoria no processo de solda, tais como a introdução do sistema CPS (Cyber Physical System), a realidade aumentada e a realidade virtual. Tais técnicas permitem não só a automatização da operação de soldagem, mas também um maior controle do processo, cruzando informações do método planejado com a operação real de modo dinâmico e adaptativo. Nesse contexto de diversificado portifólio de tecnologias usadas no processo de soldagem, o presente trabalho se propõe a realizar uma revisão da literatura com o objetivo de mapear as principais evoluções tecnológicas da automação dos processos de soldagem a arco nos últimos anos.

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“…An offline simulation system of a multi-pass basis on three-dimensional graphics is developed by Tang [10]. The existing methods for multi-pass path planning, such as that of Zhang [11], mainly aim at the situation of whole groove shape and size are consistent or those are consistent with the preset. Due to processing error, deformation and assembly error, the shape and size of the groove may change greatly compared with the preset, and the processing methods, such as tapping and heating, may also produce a more unpredictable deformation.…”

Section: Introductionmentioning

confidence: 99%

Visual-Based Multi-Section Welding Path Generation Algorithm

Lü

Liu

et al. 2020

Processes

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As an important form of additive manufacturing, welding is widely used in steel components welding work of construction, shipbuilding and other fields. In this study, an intelligent welding path generation algorithm based on multi-section interpolation is proposed in order to deal with non-standard multi-pass welding grooves which are difficult to be handled by automatic welding equipment in the construction site. Firstly, the non-standard grooves are classified and the reasons for their occurrence are discussed. Secondly, an automatic welding additive manufacturing system framework is discussed and an appropriate detection method is selected. Then, combining with the welding standard of non-standard grooves and the characteristics of the welding process, a multi-section interpolation-based welding path generation algorithm is proposed. Finally, a visual experiment platform was built to detection the typical non-standard groove and the welding experiment is implemented to verify the feasibility of the algorithm. According to the path generated by the algorithm, the welded steel components test plate meets the actual engineering standard after quality inspection. The experimental results and simulation results conclude the algorithm can be used to generate the welding path of the non-standard groove.

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Untitled

Cited by 65 publications

References 12 publications

Entanglement Bounds for a Family of Two-Mode Gaussian States

Entanglement Bounds for a Family of Two-Mode Gaussian States

Evolução dos Processos de Automação em Células de Soldagem: Uma Revisão da Literatura

Visual-Based Multi-Section Welding Path Generation Algorithm

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