| 1. |
- Ablikim, M., et al.
(författare)
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Measurements of (XcJ)-> K+K-K+K- decays
- 2006
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Ingår i: Physics Letters B. - : Elsevier BV. - 0370-2693 .- 1873-2445. ; 642:3, s. 197-202
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Tidskriftsartikel (refereegranskat)abstract
- Using 14M psi(2S) events taken with the BESII detector, chi(cJ) -> 2(K+K-) decays are studied. For the four-kaon final state, the branching fractions are B(chi(c0,1,2) ->.2(K+K-)) = (3.48 +/- 0.23 +/- 0.47) x 10(-3), (0.70 +/- 0.13 +/- 0.10) x 10(-3), and (2.17 +/- 0.20 +/- 0.31) x 10(-3). For the phi K+K- final state, the branching fractions, which are measured for the first time, are B(chi(c0,1,2) -> phi K+K-) = (1.03 +/- 0.22 +/- 0.15) x 10(-3), (0.46 +/- 0.16 +/- 0.06) x 10(-3), and (1.67 +/- 0.26 +/- 0.24) x 10(-4). For the phi phi final state, B(chi(c0,2) -> phi phi) = (0.94 +/- 0.21 +/- 0.13) x 10(-3) and (1.70 +/- 0.30 +/- 0.25) x 10(-3).
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| 2. |
- Arsenlis, Athanasios, et al.
(författare)
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Enabling strain hardening simulations with dislocation dynamics
- 2007
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Ingår i: Modelling and Simulation in Materials Science and Engineering. - : IOP Publishing. - 0965-0393 .- 1361-651X. ; 15, s. 553-595
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Tidskriftsartikel (refereegranskat)abstract
- Numerical algorithms for discrete dislocation dynamics simulations areinvestigated for the purpose of enabling strain hardening simulations of singlecrystals on massively parallel computers. The algorithms investigated includethe O(N) calculation of forces, the equations of motion, time integration,adaptive mesh refinement, the treatment of dislocation core reactions and thedynamic distribution of data and work on parallel computers. A simulationintegrating all these algorithmic elements using the Parallel DislocationSimulator (ParaDiS) code is performed to understand their behaviour in concertand to evaluate the overall numerical performance of dislocation dynamicssimulations and their ability to accumulate percent of plastic strain.
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| 3. |
- Wang, Lihui, et al.
(författare)
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An Effective Approach for Distributed Process Planning Enabled by Event-driven Function Blocks
- 2007
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Ingår i: Process Planning and Scheduling for Distributed Manufacturing. - : Springer London. - 9781846287510 ; , s. 1-30
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Bokkapitel (refereegranskat)abstract
- This chapter presents a function block enabled approach towards distributed process planning. It covers the basic concept, generic machining process sequencing using enriched machining features, process plan encapsulation in function blocks, and process monitoring through event-driven function blocks. A two-layer structure of supervisory planning and operation planning is proposed to separate generic data from machine-specific ones. The supervisory planning is only performed once, in advance, at the shop level to generate machine-neutral process plans, whereas the operation planning is carried out at runtime at the machine level to determine machine-specific operations. This dynamic decision making is facilitated by resource-driven algorithms embedded in the function blocks. The internal structures of typical function blocks are also introduced in the chapter. Our approach and algorithms are verified through case studies before drawing conclusions. It is expected that the new approach can greatly enhance the dynamism of fluctuating job-shop operations.
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| 4. |
- Wei, M., et al.
(författare)
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Differential absorption optical coherence tomography with strong absorption contrast agents of gold nanorods
- 2009
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Ingår i: Frontiers of Optoelectronics in China. - : Springer Science and Business Media LLC. - 1674-4128 .- 1674-4594. ; 2:2, s. 141-145
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Tidskriftsartikel (refereegranskat)abstract
- Plasmon-resonant gold nanorods (GNRs) are demonstrated as strong absorption contrast agents for optical coherence tomography (OCT). OCT imaging of tissue phantoms doped with GNRs of different resonant wavelengths and concentrations is studied. To utilize the high absorption property of GNRs, a differential absorption OCT imaging is introduced to retrieve the absorption information of GNRs from conventional backscattered signals. It is shown that the contrast of the OCT image can be enhanced significantly when the plasmon resonant wavelength of the GNRs matches the central wavelength of the OCT source.
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| 5. |
- Wei, Ming, et al.
(författare)
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Using plasmon-resonant gold nanorods as absorption contrast agents for optical coherence tomography
- 2008
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Ingår i: 2008 Asia Optical Fiber Communication and Optoelectronic Exposition and Conference, AOE 2008. - 9781557528636
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Konferensbidrag (refereegranskat)abstract
- Plasmon-resonant gold nanorods were used as high absorption contrast agents for optical coherence tomography (OCT). It is shown that nanorods imaging, with resonance wavelengths overlapping OCT source, can provide more information than conventional OCT images.
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