Showing 481 - 500 results of 12,427 for search '((((cheers OR cheaters) OR (heater OR heather)) OR peer) OR ((beens OR beer) OR beam))*', query time: 0.21s Refine Results
  1. 481
  2. 482

    Quantitative measurement of displacement in photopolymer layers during holographic recording using phase shifting electronic speckle pattern interferometry by Moothanchery, Mohesh, Bavigadda, Viswanath, Upputuri, Paul Kumar, Pramanik, Manojit, Toal, Vincent, Naydenova, Izabela

    Published 2016
    “…It was observed that the displacement profile is Gaussian and resembles to the profile of the recording beam. We observed an increase in shrinkage from 2 μm at 20 seconds of recording to 7.5 μm after 120 seconds of recording. …”
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    Conference Paper
  3. 483

    Antenna-enhanced and polarization sensitive photoresponse in arrays of silicon P–i–N nanowires by Salfi, J., Lin, F. K., Stewart, C., Nair, S. V., Chen, C. Y., Yongshun, S., Rusli, E., Yu, M., Singh, N., Sousa, C. F. d., Ruda, H. E.

    Published 2013
    “…Quantitative characterization of these resonances was performed by spectral and polarization-resolved photocurrent measurements on gratings with N = 500, 200 and 100 nanowires, aided by electron beam-induced current measurements, and in excellent agreement with electromagnetic scattering theory. …”
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    Journal Article
  4. 484

    Damage identification by using a self-synchronizing multipoint laser doppler vibrometer by Miao, Hong, Zhu, Changchun, Yang, Chong, Fu, Yu, Yuan, Jianmin, Guo, Min, Yan, Keyu, Liu, Huan

    Published 2018
    “…In this paper, a damage detection technique is proposed using a self-synchronizing multipoint LDV. Multiple laser beams with various frequency shifts are projected on different points of the object, reflected and interfered with a common reference beam. …”
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    Journal Article
  5. 485

    Cylindrical surfaces enable wavelength-selective extinction and sub-0.2 nm linewidth in 250 μm-gap silicon Fabry–Pérot cavities by Malak, Maurine, Marty, Frédéric, Pavy, Nicolas, Peter, Yves-Alain, Liu, Ai Qun, Bourouina, Tarik

    Published 2013
    “…Our approach consists of providing a solution to the main loss mechanism in conventional FP cavities related to the expansion of the Gaussian light beam after multiple reflections inside the cavity. …”
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    Journal Article
  6. 486

    A signal through the noise: accurate determination of hydrogen atom positions in crystal structures and optimisation of Laue neutron diffraction methods by Sackman, GA

    Published 2021
    “…This focuses on:</p> <p>Recommendations for the efficient collection of Laue neutron data, in order to optimise the data set completeness and awarded beam-time; strategic considerations for how to best answer the scientific question(s) at hand in a Laue neutron experiment, whilst planning against future contingencies; improving methods for crystal packing and shipping, particularly for air and moisture sensitive materials; discussing issues arising from ice forming on the crystal during a Laue neutron diffraction experiment, and methods for minimising this problem; more effectively modelling disorder using ring shapes, in the crystallographic refinement package CRYSTALS; providing rationale for Laue neutron specific checkCIF comments.…”
    Thesis
  7. 487

    Polymeric composites for powder-based additive manufacturing : materials and applications by Yuan, Shangqin, Shen, Fei, Chua, Chee Kai, Zhou, Kun

    Published 2020
    “…As one of the most important categories in the additive manufacturing (AM) field, powder-based techniques, such as selective laser sintering, electron beam melting and selective laser melting, utilize laser or electronic beams to selectively fuse polymeric, metallic, ceramic or composite powders layer-by-layer into desired products according to their computer-aided design models. …”
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    Journal Article
  8. 488

    Additive manufacturing of NiTi shape memory alloys using pre-mixed powders by Tor, Shu Beng, Wong, Chee How, Wang, Chengcheng, Tan, Xipeng, Du, Zehui, Chandra, Shubham, Sun, Zhongji, Lim, Joel Choon Wee, Lim, Choon Seng

    Published 2019
    “…This work presents a comparative study on the in-situ alloying of NiTi shape memory alloys (SMAs) by directed energy deposition (DED), selective laser melting (SLM) and selective electron beam melting (SEBM) processes using pre-mixed Ni-Ti powders. …”
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    Journal Article
  9. 489

    First results on a new PIAA coronagraph testbed at NASA Ames by Belikov, R., Pluzhnik, E., Connelley, M. S., Witteborn, F. C., Lynch, D. H., Cahoy, K. L., Guyon, O., Greene, T. P., McKelvey, M. E.

    Published 2017
    “…Fortunately, an efficient coronagraph called the Phase Induced Amplitude Apodization (PIAA) coronagraph has been maturing and may enable Earth-like planet imaging for such small telescopes. …”
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    Presentation
  10. 490

    Optimizing resource allocation in large communications satellite constellations by Pachler de la Osa, Nils

    Published 2024
    “…Several approaches have been proposed to deal with the complexity of the added flexibilities at the spacecraft level. …”
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    Thesis
  11. 491

    Nanostructured materials for electrochemical carbon dioxide reduction and biosensing by Ge, Junyu

    Published 2021
    “…Strategies of nanostructure synthesis can be diverse, but a fast, scalable, and cost-effective method for 1D material fabrication in one step has not been reported yet. In this thesis, a room temperature ultrasonic nanoimprinting technique for 1D metal nanostructure fabrication has been developed. …”
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    Thesis-Doctor of Philosophy
  12. 492

    Developing a portable, high-speed, low-cost desktop photoacoustic tomography imaging system by Kalva, Sandeep Kumar

    Published 2019
    “…Usually Nd:YAG-OPO laser is bulky, heavy and needs an optical table to deliver non-fluctuating laser beam and it needs external op- tics (reflectors/prisms) to direct the laser beam onto the sample (there are portable OPO lasers from OpoTek, EKSPLA, and various other companies that do not require optical table but they are more expensive than conventional Nd:YAG-OPO lasers). …”
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    Thesis
  13. 493
  14. 494

    Robot programming using augmented reality by Chong, Jonathan Wun Shiung

    Published 2014
    “…The two RPAR methodologies developed in this research have been applied to a number of case studies and the various related issues have been discussed.…”
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    Thesis
  15. 495
  16. 496

    Multi-bounce Returns for Specular Surface Mapping from Consumer-grade Flash LiDAR by Lin, Tsung-Han

    Published 2024
    “…Consumer-grade LiDAR multi-beam flash LiDAR is challenging with its coarse resolution, co-located sensors, and multiplexing setup. …”
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    Thesis
  17. 497

    Interpretation of an anomalous peak in low-temperature photoluminescence measurements of bulk GaAs[sub 1−x]N[sub x] on GaAs by Cheah, Weng Kwong, Fan, Weijun, Yoon, Soon Fatt, Loke, Wan Khai, Liu, R., Wee, A. T. S.

    Published 2013
    “…Low-temperature 10 K photoluminescence measurements of GaAs1−xNx epitaxial layers grown on GaAs reveal an anomalous second peak in solid-source molecular beam epitaxy. Rapid thermal annealing RTA of a specific GaAsN sample reveals a lower energy peak which redshifts and a higher energy peak which blueshifts under increasing annealing temperature. …”
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    Journal Article
  18. 498

    Study of a 1 eV GaNAsSb photovoltaic cell grown on a silicon substrate by Tan, K. H., Loke, W. K., Wicaksono, S., Li, D., Leong, Y. R., Yoon, S. F., Sharma, P., Milakovich, T., Bulsara, M. T., Fitzgerald, E. A.

    Published 2014
    “…We report the performance of a 1 eV GaNAsSb photovoltaic cell grown on a Si substrate with a SiGe graded buffer grown using molecular beam epitaxy. For comparison, the performance of a similar 1 eV GaN0.018As0.897 Sb 0.085 photovoltaic cell grown on a GaAs substrate was also reported. …”
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    Journal Article
  19. 499

    Low temperature grown GaNAsSb : a promising material for photoconductive switch application by Li, D. S., Saadsaoud, N., Tripon-Canseliet, C., Lampin, J. F., Decoster, D., Chazelas, J., Yoon, Soon Fatt, Wicaksono, Satrio, Loke, Wan Khai, Tan, Kian Hua

    Published 2013
    “…The GaNAsSb layer was grown at 200 °C by molecular beam epitaxy in conjunction with a radio frequency plasma-assisted nitrogen source and a valved antimony cracker source. …”
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    Journal Article
  20. 500

    Large-area atomic layers of the charge-density-wave conductor TiSe2 by Wang, Hong, Chen, Yu, Duchamp, Martial, Zeng, Qingsheng, Wang, Xuewen, Tsang, Siu Hon, Li, Hongling, Jing, Lin, Yu, Ting, Teo, Edwin Hang Tong, Liu, Zheng

    Published 2020
    “…However, the syntheses of monolayer and large-area 2D CDW conductors can currently only be achieved by molecular beam epitaxy under ultrahigh vacuum. This study reports the growth of monolayer crystals and up to 5 × 105 µm2 large films of the typical 2D CDW conductor-TiSe2 -by ambient-pressure chemical vapor deposition. …”
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    Journal Article