Searched for:
(1 - 20 of 31)

Pages

document
Ding, F. (author), Akopian, N. (author), Li, B. (author), Perinetti, U. (author), Govorov, A. (author), Peeters, F.M. (author), Bof Bufon, C.C. (author), Deneke, C. (author), Chen, Y.H. (author), Rastelli, A. (author), Schmidt, O.G. (author), Zwiller, V. (author)
We report on a magnetophotoluminescence study of single self-assembled semiconductor nanorings which are fabricated by molecular-beam epitaxy combined with AsBr3 in situ etching. Oscillations in the neutral exciton radiative recombination energy and in the emission intensity are observed under an applied magnetic field. Further, we control the...
journal article 2010
document
Li, C. (author), Chen, J.H. (author), Wu, X. (author), Wang, W. (author), Van der Zwaag, S. (author)
journal article 2012
document
Chen, Z. (author), Xu, Z. (author), Wang, G. (author), Li, H. (author), Chen, B. (author), Zeng, X.C. (author), Tan, L. (author)
Crystalline solids are solid materials whose constituent atoms, molecules, or ions are arranged in a highly regulated fashion. Due to lack of rotational freedom in their stacking, they have been known as fragile materials. Even though some efforts have been dedicated to bind or mend defects/cracks in amorphous materials like concrete or polymers...
conference paper 2013
document
Wang, Y. (author), Chen, W. (author), Wang, H. (author), Li, R. (author)
In this paper, a steady 3D numerical study has been conducted on a 90 mm counter rotating lift fan to investigate its aerodynamic performance. The effect of axial distance between the fans and rotor speed are studied. A low thrust generation has been revealed from the simulation results due to the unfavourable working condition for the upstream...
conference paper 2014
document
Li, K. (author), Huang, R. (author), Phang, S.K. (author), Lai, S. (author), Wang, F. (author), Tan, P. (author), Chen, B.M. (author), Lee, T.H. (author)
In this paper, we propose an approach to autonomously control a quadrotor micro aerial vehicle (MAV). With take-off weight of 50 g and 8-min flight endurance, the MAV platform codenamed ‘KayLion’ developed by the National University of Singapore (NUS) is able to perform autonomous flight with pre-planned path tracking. The vision-based...
conference paper 2014
document
Khaliq, J. (author), Li, C. (author), Chen, K. (author), Shi, B. (author), Ye, H. (author), Grande, A.M. (author), Yan, H. (author), Reece, M.J. (author)
The effect of substitution and oxidation-reduction on the thermal conductivity of perovskite-like layered structure (PLS) ceramics was investigated in relation to mass contrast and non-stoichiometry. Sr (acceptor) was substituted on the A site, while Ta (donor) was substituted on the B site of La2Ti2O7. Substitution in PLS materials creates...
journal article 2015
document
Chen, L. (author), Li, Z. C. (author), Schut, H. (author), Sekimura, N. (author)
The degradation of reactor pressure vessel steels under irradiation, which results from the hardening and embrittlement caused by a high number density of nanometer scale damage, is of increasingly crucial concern for safe nuclear power plant operation and possible reactor lifetime prolongation. In this paper, the radiation damage in model...
journal article 2016
document
Xing, Xinming (author), Chen, Junhong (author), Bei, G. (author), Li, Bin (author), Chou, Kuo Chih (author), Hou, Xinmei (author)
Highly pure Al<sub>4</sub>SiC<sub>4</sub> powders were prepared by carbothermic reduction at 2173 K using Al<sub>2</sub>O<sub>3</sub>, SiO<sub>2</sub>, and graphite as raw materials. The obtained Al<sub>4</sub>SiC<sub>4</sub> powders owned hexagonal plate-like grains with a diameter of about 200–300 μm and a thickness of about 2–6 μm. Based...
journal article 2017
document
Liu, Z. (author), Chen, Kai (author), Li, Z. (author), Jiang, X. (author)
Fiber-reinforced polymer (FRP) has been increasingly applied to steel structures for structural strengthening or crack repair, given its high strength-to-weight ratio and high stiffness-to-weight ratio. Cracks in steel structures are the dominant hidden threats to structural safety. However, it is difficult to monitor structural cracks under...
journal article 2017
document
Wang, H. (author), Chen, Chuyi (author), Qu, B. (author), Li, Daqing (author)
The participation of individuals in multi-layer networks allows for feedback between network layers, opening new possibilities to mitigate epidemic spreading. For instance, the spread of a biological disease such as Ebola in a physical contact network may trigger the propagation of the information related to this disease in a communication...
journal article 2017
document
Li, Z. (author), Ganapathy, S. (author), Xu, Y. (author), Heringa, J.R. (author), Zhu, Quanyao (author), Chen, Wen (author), Wagemaker, M. (author)
The lithium air, or Li–O2, battery system is a promising electrochemical energy storage system because of its very high theoretical specific energy, as required by automotive applications. Fundamental research has resulted in much progress in mitigating detrimental (electro)chemical processes; however, the detailed structural evolution of the...
journal article 2017
document
Chen, Zhi Guo (author), Chen, R. Y. (author), Zhong, R. D. (author), Schneeloch, John (author), Zhang, C. (author), Huang, Y. (author), Qu, F. (author), Yu, R. (author), Li, Q. (author), Gu, G. D. (author), Wang, N. L. (author)
Three-dimensional topological insulators (3D TIs) represent states of quantum matters in which surface states are protected by timereversal symmetry and an inversion occurs between bulk conduction and valence bands. However, the bulk-band inversion, which is intimately tied to the topologically nontrivial nature of 3D Tis, has rarely been...
journal article 2017
document
Wu, Yue (author), Liu, Xiuming (author), Li, Q. (author), Chen, Boxuan (author), Luo, Peng (author), Pronk, Arno (author), Mergny, Elke (author)
By using inflatable moulds and then spraying cellulose-water mixture, one ice dome and two ice towers were built in Harbin in December 2016. During the whole process, form-finding of the inflatable moulds as well as the construction of these ice composite shell structures are very important for the final results.<br/>The mould for the ice dome...
conference paper 2017
document
Li, Bin (author), Jiang, Peng (author), Zhai, Famin (author), Chen, Junhong (author), Bei, G. (author), Hou, Xinmei (author), Chou, Kuo Chih (author)
In this paper, the fabrication and thermal conductivity (TC) of water-based nanofluids using boron (B)-doped SiC as dispersions are reported. Doping B into the <i>β</i>-SiC phase leads to the shrinkage of the SiC lattice due to the substitution of Si atoms (0.134 nm radius) by smaller B atoms (0.095 nm radius). The presence of B in the SiC...
journal article 2018
document
Li, Yonggang (author), Chen, Ziliang (author), Wen, Sheng (author), Hou, Xiaolin (author), Zhang, R. (author), Ma, Meihu (author)
A modified QuEChERS (quick, easy, cheap, effective, rugged, and safe) method and ultrahigh-performance liquid chromatography coupled to tandem mass spectrometry (UHPLC-MS/MS) were optimized and validated for 16 antibiotics belonging to three families (macrolides, quinolones, and sulfonamides) that were found in preserved eggs. Samples were...
journal article 2018
document
Li, Z. (author), Ganapathy, S. (author), Xu, Y. (author), Zhu, Quanyao (author), Chen, Wen (author), Kochetkov, Ivan (author), George, C. (author), Nazar, Linda F. (author), Wagemaker, M. (author)
journal article 2018
document
Lin, Yu-Fen (author), Chen, Banjamin P. (author), Li, Wende (author), Perko, Z. (author), Wang, Yi (author), Testa, Mauro (author), Robert, Schneider (author), Lu, Hsaio-Ming (author), Gerweck, Leo E. (author)
Purpose: Variations in the radiosensitivity of tumor cells within and between tumors impact tumor response to radiation, including the dose required to achieve permanent local tumor control. The increased expression of DNA-PKcs, a key component of a major DNA damage repair pathway in tumors treated by radiation, suggests that DNA-PKcs– dependent...
journal article 2018
document
Liu, Jikai (author), Gaynor, Andrew T. (author), Chen, Shikui (author), Kang, Zhan (author), Suresh, Krishnan (author), Takezawa, Akihiro (author), Li, Lei (author), Kato, Junji (author), Tang, Jinyuan (author), Wang, C.C. (author), Cheng, Lin (author), Liang, Xuan (author), To, Albert. C. (author)
Manufacturing-oriented topology optimization has been extensively studied the past two decades, in particular for the conventional manufacturing methods, for example, machining and injection molding or casting. Both design and manufacturing engineers have benefited from these efforts because of the close-to-optimal and friendly-to-manufacture...
journal article 2018
document
Zhou, Yatong (author), Li, Shuhua (author), Zhang, D. (author), Chen, Yangkang (author)
We propose a new low-rank based noise attenuation method using an efficient algorithm for tracking subspaces from highly corrupted seismic observations. The subspace tracking algorithm requires only basic linear algebraic manipulations. The algorithm is derived by analysing incremental gradient descent on the Grassmannian manifold of...
journal article 2018
document
Yang, Z. (author), Boogaard, M.A. (author), Chen, Rong (author), Dollevoet, R.P.B.J. (author), Li, Z. (author)
This paper presents an analysis of the transient contact solutions of wheel-rail frictional rolling impacts calculated by an explicit finite element model of the wheel-insulated rail joint (IRJ) dynamic interaction. The ability of the model to simulate the dynamic behavior of an IRJ has been validated against a comprehensive field measurement in...
journal article 2018
Searched for:
(1 - 20 of 31)

Pages