J.&#x;M. Suh  S.&#x;J. Bae  B. Jeong 《Advanced materials (Deerfield Beach, Fla.)》2005,17(1):118-120

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JungHo Jin  Ji‐Hoon Ko  SeungCheol Yang  Byeong‐Soo Bae 《Advanced materials (Deerfield Beach, Fla.)》2010,22(40)

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Zheng M  Chen X  Bae IT  Ke C  Park C  Smith MW  Jordan K 《Small (Weinheim an der Bergstrasse, Germany)》2012,8(1):116-121

The radial mechanical properties of single-walled boron nitride nanotubes (SW-BNNTs) are investigated by atomic force microscopy. Nanomechanical measurements reveal the radial deformation of individual SW-BNNTs in both elastic and plastic regimes. The measured effective radial elastic moduli of SW-BNNTs are found to follow a decreasing trend with an increase in tube diameter, ranging from 40.78 to 1.85 GPa for tube diameters of 0.58 to 2.38 nm. The results show that SW-BNNTs have relatively lower effective radial elastic moduli than single-walled carbon nanotubes (SWCNTs). The axially strong, but radially supple characteristics suggest that SW-BNNTs may be superior to SWCNTs as reinforcing additives for nanocomposite applications.  相似文献   

    

Qi H  Du Y  Wang L  Kaji H  Bae H  Khademhosseini A 《Advanced materials (Deerfield Beach, Fla.)》2010,22(46):5276-5281

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D. Zhao  S.‐J. Seo  B.‐S. Bae 《Advanced materials (Deerfield Beach, Fla.)》2007,19(21):3473-3479

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S. C. Lim  Y. C. Choi  H. J. Jeong  Y. M. Shin  K. H. An  D. J. Bae  Y. H. Lee  N. S. Lee  J. M. Kim 《Advanced materials (Deerfield Beach, Fla.)》2001,13(20):1563-1567

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Jongwon Yoon  Woojin Park  Ga‐Yeong Bae  Yonghun Kim  Hun Soo Jang  Yujun Hyun  Sung Kwan Lim  Yung Ho Kahng  Woong‐Ki Hong  Byoung Hun Lee  Heung Cho Ko 《Small (Weinheim an der Bergstrasse, Germany)》2013,9(19):3295-3300

A highly flexible and transparent transistor is developed based on an exfoliated MoS₂ channel and CVD‐grown graphene source/drain electrodes. Introducing the 2D nanomaterials provides a high mechanical flexibility, optical transmittance (～74%), and current on/off ratio (>10⁴) with an average field effect mobility of ～4.7 cm² V^?1 s^?1, all of which cannot be achieved by other transistors consisting of a MoS₂ active channel/metal electrodes or graphene channel/graphene electrodes. In particular, a low Schottky barrier (～22 meV) forms at the MoS₂/graphene interface, which is comparable to the MoS₂/metal interface. The high stability in electronic performance of the devices upon bending up to ±2.2 mm in compressive and tensile modes, and the ability to recover electrical properties after degradation upon annealing, reveal the efficacy of using 2D materials for creating highly flexible and transparent devices.  相似文献   

    

Sun Kak Hwang  Jae Ryung Choi  Insung Bae  Ihn Hwang  Suk Man Cho  June Huh  Cheolmin Park 《Small (Weinheim an der Bergstrasse, Germany)》2013,9(6):831-837

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Jong In Park  Norman Kim  Suk Joo Bae 《Quality and Reliability Engineering International》2012,28(8):897-909

Accurate prediction of fatigue failure times of materials such as fracture and plastic deformation at various stress ranges has a strong bearing on practical fatigue design of materials. In this study, we propose a novel genetic‐based iterative quantile regression (GA‐IQR) algorithm for analyzing fatigue curves that represent a nonlinear relationship between a given stress amplitude and fatigue life. We reduce the problem to a linear framework and develop the iterative algorithm for determining the model coefficients including unknown fatigue limits. The procedure keeps updating the estimates in a direction to reduce its resulting error. Also, our approach benefits from the population‐based stochastic search of the genetic algorithms so that the algorithm becomes less sensitive to its initialization. Compared with conventional approaches, the proposed GA‐IQR requires fewer assumptions to develop fatigue model, capable of exploring the data structure in a relatively flexible manner. All procedures and calculations are quite straightforward, such that the proposed quantile regression model has a high potential value in a wide range of applications for exploring nonlinear relationships with lifetime data. Computational results for real data sets found in the literature present good evidences to support the argument. Copyright © 2012 John Wiley & Sons, Ltd.  相似文献   

    

Bae I  Kang SJ  Shin YJ  Park YJ  Kim RH  Mathevet F  Park C 《Advanced materials (Deerfield Beach, Fla.)》2011,23(30):3398-3402

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