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air-floating guide rail 1

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Function of Slit/Robo signaling in breast cancer

Feng Gu,Yongjie Ma,Jiao Zhang,Fengxia Qin,Li Fu

Frontiers of Medicine 2015, Volume 9, Issue 4, Pages 431-436 doi: 10.1007/s11684-015-0416-9

Abstract:

Slit and Robo are considered tumor suppressors because they are frequentlyThe Slit/Robo signaling pathway is reportedly involved in breast cancer development and metastasis.Overexpression of Slit/Robo induces its tumor suppressive effects possibly by inactivating the βFurthermore, loss of Slit proteins or their Robo receptors upregulates the CXCL12/CXCR4 signaling axisThis review includes recent studies on the functions of Slit/Robo signaling in breast cancer and its

Keywords： Slit/Robo hypermethylation β-catenin CXCL12/CXCR4 migration

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Cyclic behavior of prefabricated reinforced concrete frame with infill slit shear walls

Kui XIAO,Qilin ZHANG,Bin JIA

Frontiers of Structural and Civil Engineering 2016, Volume 10, Issue 1, Pages 63-71 doi: 10.1007/s11709-015-0294-x

Abstract: A composite structural system consisting of prefabricated reinforced concrete frame with infill slit

Keywords： slit shear wall constitutive model cyclic seismic damage

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Morphologies of diblock copolymer confined in a slit with patterned surfaces studied by dissipative particle

FENG Jian, HUANG Yongmin, LIU Honglai, HU Ying

Frontiers of Chemical Science and Engineering 2007, Volume 1, Issue 2, Pages 132-139 doi: 10.1007/s11705-007-0025-5

Abstract: Diblock copolymers with ordered mesophase structures have been used as templates for nano-fabrication. Unfortunately, the ordered structure only exists at micrometer-scale areas, which precludes its use in many advanced applications. To overcome this disadvantage, the diblock copolymer confined in a restricted system with a patterned surface is proved to be an effective means to prohibit the formation of defects and obtain perfect ordered domains. In this work, the morphologies of a thin film of diblock copolymer confined between patterned and neutral surfaces were studied by dissipative particle dynamics. It is shown that the morphology of the symmetric diblock copolymer is affected by the ratio of the pattern period on the surface to the lamellar period of the symmetric diblock copolymer and by the repulsion parameters between blocks and wall particles. To eliminate the defects in the lamellar phase, the pattern period on the surface must match the lamellar period. The difference in the interface energy of different compartments of the pattern should increase with increasing film thickness. The pattern period on the surface has a scaling relationship with the chain length, which is the same as that between the lamellar period and the chain length. The lamellar period is also affected by the polydispersity of the symmetric diblock copolymer. The total period is the average of the period of each component multiplied by the weight of its volume ratio. The morphologies of asymmetric diblock copolymers are also affected by the pattern on the surface, especially when the matching period of the asymmetric diblock copolymer is equal to the pattern period, which is approximately equal to the lamellar period of a symmetric diblock copolymer with the same chain length.

Keywords： weight nano-fabrication morphology matching dissipative particle

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Evaluation of measurement uncertainty of the high-speed variable-slit system based on the Monte Carlo

Yin ZHANG, Jianwei WU, Kunpeng XING, Zhongpu WEN, Jiubin TAN

Frontiers of Mechanical Engineering 2020, Volume 15, Issue 4, Pages 517-537 doi: 10.1007/s11465-020-0589-z

Abstract: dynamic and static error transfer model and uncertainty evaluation method for a high-speed variable-slitFirst, an error transfer model of the high-speed variable-slit system is established, and the influence

Keywords： air-floating guide rail error transfer model driving and following structure dynamic error uncertainty evaluation Monte Carlo method