Relevant bibliographies by topics / Vertical array

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Vertical array'

Author: Grafiati
Published: 4 June 2021
Last updated: 22 February 2023

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Journal articles on the topic "Vertical array"

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Ma, Qiang, Chengda Pan, Yingxian Xue, Zhiyun Fang, Shiyu Zhang, Botao Wu, and E. Wu. "Plasmon Enhanced Second Harmonic Generation from ZnO Nanofilms on Vertical Au Nanorod Arrays." Nanomaterials 11, no. 10 (October 2, 2021): 2597. http://dx.doi.org/10.3390/nano11102597.

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Vertically aligned gold nanorod arrays have attracted much attention for their fascinating optical properties. Different from longitudinal surface plasmon wavelength (LSPW) and edge-to-edge spacing of gold nanorods, the role of gold nanorod diameter in plasmonic enhancement ability of vertical gold nanorod arrays has rarely been explored. In this work, we selected gold nanorods with similar LSPW but two different diameters (22 and 41 nm), the optical properties of which are dominated by absorption and scattering cross sections, respectively. The vertically aligned arrays of these gold nanorods formed by evaporation self-assembly are coupled with nonlinear ZnO nanocrystal films spin-coated on their surfaces. It was found that the gold nanorod array with a larger diameter can enhance the second harmonic generation (SHG) of ZnO nanofilm by a factor of 27.0, while it is about 7.3 for the smaller gold nanorod array. Theoretical simulations indicate that such stronger enhancement of the larger vertical gold nanorod array compared with the smaller one is due to its stronger scattering ability and greater extent of near-field enhancement at SHG fundamental wavelength. Our work shows that the diameter of gold nanorods is also an important factor to be considered in realizing strong plasmon enhancement of vertically aligned gold nanorod arrays.
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Selvakumar, A., and K. Najafi. "Vertical comb array microactuators." Journal of Microelectromechanical Systems 12, no. 4 (August 2003): 440–49. http://dx.doi.org/10.1109/jmems.2003.811752.

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Wu, Jinping, Wenxiao Qiao, Xiaohua Che, Xiaodong Ju, Junqiang Lu, and Wenhe Wu. "Experimental study on the radiation characteristics of downhole acoustic phased combined arc array transmitter." GEOPHYSICS 78, no. 1 (January 1, 2013): D1—D9. http://dx.doi.org/10.1190/geo2012-0114.1.

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A new kind of acoustic phased combined arc array transmitter with controllable directivity presented can be used in 3D acoustic image logging. The phased combined arc array is composed of numerous phased arc arrays placed equally along an axis. Each phased arc array contains several array elements arranged around a circumference. The phased combined arc array is considered as the combination of phased arc arrays and linear phased arrays. A directional radiation acoustic beam in the space is generated by simultaneously controlling the phase delay of excitation signals exerted on array elements located in the circumferential and axial directions. To investigate the radiation characteristics, an acoustic transmitter comprising four eight-element phased arc arrays was assembled to conduct physical simulation experiments in a water tank. Experimental results show that the main lobe width of the horizontal radiation energy narrows significantly by exerting phase delayed excitation signals on array elements of phased arc arrays. Adjusting the delay time of excitation signals applied on neighboring-phased arc arrays allows the main lobe direction of the vertical radiation energy to be steered and facilitates the change in the main lobe width of the vertical radiation energy. The phased combined arc array is characterized by controllable horizontal directivity, vertical directivity, and main lobe width of the radiated acoustic beam. More importantly, the acoustic phased combined arc array transmitter is applicable to 3D acoustic image logging, which is helpful in the enhancement of the reliability and accuracy of complex reservoir exploration.
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Liang, Yan, Zhou Meng, Yu Chen, Zemin Zhou, and Mo Chen. "Vertical Correlation and Array Gain Analysis for Vertical Line Array in Deep Water." Applied Sciences 10, no. 14 (July 8, 2020): 4709. http://dx.doi.org/10.3390/app10144709.

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Array gain (AG) is significant in evaluating the detection performance of the vertical line array, which is directly determined by the correlation of signal and noise, respectively. In this paper, we analyze the vertical correlation for a 16-element vertical line array experimented in the deep ocean in 2016. The ray interference theory is utilized to interpret the mechanism of the vertical correlation of the sound field in different zones. In the direct-arrival zone, the direct rays and once-surface-reflected rays are two dominated components, whose arrival time difference for each element are nearly the same, and the vertical correlation is high. In the shadow zone, the sound field is mainly dominated by bottom-reflected rays and the vertical correlation decreases due to different grazing angles and arrival times of each ray. Different from the previous assumption of noise independence, the effect of noise correlation on the AG is analyzed through the measured marine environmental noise. Results indicate that the noise correlation coefficients in two zones are low but not 0. In the direct-arrival zone, AG is about 10 dB, very close to the ideal value of 10 log M . AG even exceeds it when NG is negative. Moreover, AG in the direct-arrival zone is higher than the one in the shadow zone.
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Afshari, Kioumars, Jonathan P. Stewart, and Jamison H. Steidl. "California Ground Motion Vertical Array Database." Earthquake Spectra 35, no. 4 (November 2019): 2003–15. http://dx.doi.org/10.1193/070218eqs170dp.

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We present a data set of ground motion recordings and site information from vertical array sites in California. The recordings include two horizontal components of ground shaking at the ground surface level and from downhole sensors. The availability of both surface and downhole recordings at the same site facilitates direct observations of site response. The site data include measured shear-and compression-wave velocities, and, where available, geotechnical boring logs. We considered 39 vertical array sites in California and chose 21 for inclusion in the database on the basis of having at least four pairs of surface/downhole recordings. The recordings and site data are presented in a data repository, which is accessible at the DesignSafe platform (DOI: 10.17603/146DS2N680). The original digital accelerograms are processed in a manner consistent with NGA-West2 protocols. In this paper, this data set is compared to a similar but larger data set from Japanese vertical arrays compiled by others.
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Nakamura, Hisatsugu. "Vertical array type speaker system." Journal of the Acoustical Society of America 102, no. 3 (September 1997): 1277. http://dx.doi.org/10.1121/1.419987.

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Roderick, W. I., and W. A. Von Winkle. "Expendable virtual vertical sensing array." Journal of the Acoustical Society of America 92, no. 3 (September 1992): 1794. http://dx.doi.org/10.1121/1.403891.

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Worcester, Peter F., Matthew A. Dzieciuch, Lloyd L. Green, David D. Horwitt, Jacques C. Lemire, Scott D. Carey, and Matthew Norenberg. "Distributed vertical line array receiver." Journal of the Acoustical Society of America 129, no. 4 (April 2011): 2644. http://dx.doi.org/10.1121/1.3588810.

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Ahnood, Arman, Hang Zhou, Qing Dai, Yuri Vygranenko, Yuji Suzuki, MR Esmaeili-Rad, Gehan Amaratunga, and Arokia Nathan. "Vertical CNT-Si Photodiode Array." Nano Letters 13, no. 9 (August 7, 2013): 4131–36. http://dx.doi.org/10.1021/nl401636v.

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Earley, Ray, and David Bradshaw. "4970697 Vertical marine seismic array." Deep Sea Research Part B. Oceanographic Literature Review 38, no. 6 (January 1991): 520. http://dx.doi.org/10.1016/s0198-0254(05)80166-9.

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Dissertations / Theses on the topic "Vertical array"

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Pearson, Charlie. "Vertical axis wind turbine acoustics." Thesis, University of Cambridge, 2014. https://www.repository.cam.ac.uk/handle/1810/245256.

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Increasing awareness of the issues of climate change and sustainable energy use has led to growing levels of interest in small-scale, decentralised power generation. Small-scale wind power has seen significant growth in the last ten years, partly due to the political support for renewable energy and the introduction of Feed In Tariffs, which pay home owners for generating their own electricity. Due to their ability to respond quickly to changing wind conditions, small-scale vertical axis wind turbines (VAWTs) have been proposed as an efficient solution for deployment in built up areas, where the wind is more gusty in nature. If VAWTs are erected in built up areas they will be inherently close to people; consequently, public acceptance of the turbines is essential. One common obstacle to the installation of wind turbines is noise annoyance, so it is important to make the VAWT rotors as quiet as possible. To date, very little work has been undertaken to investigate the sources of noise on VAWTs. The primary aim of this study was therefore to gather experimental data of the noise from various VAWT rotor configurations, for a range of operating conditions. Experimental measurements were carried out using the phased acoustic array in the closed section Markham wind tunnel at Cambridge University Engineering Department. Beamforming was used in conjunction with analysis of the measured sound spectra in order to locate and identify the noise sources on the VAWT rotors. Initial comparisons of the spectra from the model rotor and a full-scale rotor showed good qualitative agreement, suggesting that the conclusions from the experiments would be transferable to real VAWT rotors. One clear feature observed in both sets of spectra was a broadband peak around 1-2kHz, which spectral scaling methods demonstrated was due to laminar boundary layer tonal noise. Application of boundary layer trips to the inner surfaces of the blades on the model rotor was found to eliminate this noise source, and reduced the amplitude of the spectra by up to 10dB in the region of the broadband peak. This method could easily be applied to a full-scale rotor and should result in measurable noise reductions. At low tip speed ratios (TSR) the blades on a VAWT experience dynamic stall and it was found that this led to significant noise radiation from the upstream half of the rotor. As the TSR was increased the dominant source was seen to move to the downstream half of the rotor; this noise was thought to be due to the interaction of the blades in the downstream half of the rotor with the wake from the blades in the upstream half. It was suggested that blade wake interaction is the dominant noise source in the typical range of peak performance for the full-scale QR5 rotor. Different solidity rotors were investigated by using 2-, 3- and 4-bladed rotors and it was found that increasing the solidity had a similar effect to increasing the TSR. This is due to the fact that the induction factor, which governs the deflection of the flow through the rotor, is a function of both the rotor solidity and the TSR. With a large body of experimental data for validation, it was possible to investigate computational noise prediction methods. A harmonic model was developed that aimed to predict the sound radiated by periodic fluctuations in the blade loads. This model was shown to agree with similar models derived by other authors, but to make accurate predictions very high resolution input data was required. Since such high resolution blade loading data is unlikely to be available, and due to the dominance of stochastic sources, the harmonic model was not an especially useful predictive tool. However, it was used to investigate the importance of the near-field components of the sound radiated by the wind tunnel model to the acoustic array. It was shown that the near-field terms were significant over a wide range of frequencies, and the total spectrum was always greater than that of the far-field component. This implied that the noise levels measured by the acoustic array represented an upper bound on the sound radiated to the far-field, and hence that the latter would also be dominated by stochastic components. An alternative application of the harmonic model, which attempted to determine the blade loading harmonics from the harmonics in the sound field was proposed. This inversion method utilised a novel convex optimisation technique that was found to generate good solutions in the simulated test cases, even in the presence of significant random noise. The method was found to be insensitive at low frequencies, which made it ineffective for inverting the real microphone data, although this was shown to be at least partly due to the limitations imposed by the array size. In addition to the harmonic models, an empirical noise prediction method using the spectral scaling laws derived by \citet*{Brooks_1989} was trialled, and was found to be capable of making predictions that were in agreement with the measured data. The model was shown to be sensitive to the exact choice of turbulence parameters used and was also found to require good quality aerodynamic data to make accurate noise predictions. If such data were available however, it is expected that this empirical model would be able to make useful predictions of the noise radiated by a VAWT rotor.
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Crocker, Steven Edward Miller James H. "Time domain modal beamforming for a near vertical acoustic array /." Monterey, Calif. : Springfield, Va. : Naval Postgraduate School; Available from the National Technical Information Service, 1991. http://handle.dtic.mil/100.2/ADA245272.

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Crocker, Steven Edward. "Time domain modal beamforming for a near vertical acoustic array." Thesis, Monterey, California. Naval Postgraduate School, 1991. http://hdl.handle.net/10945/24239.

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Li, Lin. "Computer modeling of a vertical array in a stratified ocean." Thesis, Massachusetts Institute of Technology, 1994. http://hdl.handle.net/1721.1/54393.

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Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Earth, Atmospheric, and Planetary Sciences, 1994.
GRSN 698569
Includes bibliographical references (leaves 76-78).
by Lin Li.
M.S.
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Li, Lin. "Computer modeling of a vertical array in a stratified ocean /." Online version of thesis as technical report, 1995. http://hdl.handle.net/1912/477.

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Tas, Gerard. "Transient localization in shallow water environments with a vertical line array." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2000. http://handle.dtic.mil/100.2/ADA381469.

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Thesis (M.S. in Engineering Acoustics) Naval Postgraduate School, June 2000.
Thesis advisor(s): Smith, Kevin B. "June 2000." Includes bibliographical references (p. 77-78). Also available in print.
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Feng, Wanjie, and Ben K. Sternberg. "Field Tests of the Vertical-Array Differential Target Antenna Coupling (DTAC) System." ENVIRONMENTAL ENGINEERING GEOPHYSICAL SOC, 2017. http://hdl.handle.net/10150/626249.

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We have tested the Vertical-Array Differential Target Antenna Coupling (DTAC) system over a variety of well-characterized, buried targets. The DTAC system produces a primary field in the frequency range of 10 Hz to 10 kHz and records secondary magnetic fields from subsurface targets, relative to a reference frequency. The current DTAC system has higher power, compared with our earlier tests, and this system is suitable for either ground or airborne mapping of a wide variety of near-surface targets, which might be encountered in civil engineering, water resources, environmental characterization, mining, and other natural-resource exploration. Profiles over three well-characterized targets show a close agreement between the measured DTAC response and model simulations. Conventional field measurements using induced magnetic fields are also displayed and they do not show nearly as effective mapping of the targets. Another profile shows that the DTAC method has greatly reduced sensitivity to surface clutter, compared to conventional measurements.
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Omans, Glenn A. "Broadband modal beamforming of acoustic tomography signals acquired by a vertical array." Thesis, Monterey, California. Naval Postgraduate School, 1992. http://hdl.handle.net/10945/23827.

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Sperry, Brian J. "Modal analysis of vertical array receptions for the Heard Island Feasibility Test." Thesis, Massachusetts Institute of Technology, 1994. http://hdl.handle.net/1721.1/38352.

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Maj, Tomasz. "Interconnection of a 2D vertical-cavity surface-emitting laser array to a receiver array via a fiber image guide." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape4/PQDD_0034/MQ64236.pdf.

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Books on the topic "Vertical array"

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Li, Lin. Computer modeling of a vertical array in a stratified ocean. Woods Hole, Mass: Woods Hole Oceanographic Institution, 1995.

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Crocker, Steven Edward. Time domain modal beamforming for a near vertical acoustic array. Monterey, Calif: Naval Postgraduate School, 1991.

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Omans, Glenn A. Broadband modal beamforming of acoustic tomography signals acquired by a vertical array. Monterey, Calif: Naval Postgraduate School, 1992.

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Canada. Defence Research Establishment Atlantic. Estimation of Azimuthal and Vertical Arrival Angles at A Rotatable Horizontal Line Array. S.l: s.n, 1987.

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Canada. Defence Research Establishment Atlantic. Research and Development Branch. Error bounds on estimated azimuthal and vertical arrival angles at a rotatable horizontal line array. S.l: s.n, 1988.

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Syring, James D. Mixed and forced convection from an array of discrete heat sources in a vertical channel. Monterey, Calif: Naval Postgraduate School, 1992.

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Theriault, James A. A FORTRAN algorithm for estimation of azimuthal and vertical arrival angles at a rotatable horizontal line array. Dartmouth, N.S: Defence Research Establishment Atlantic, 1988.

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Miller, Christopher W. Estimating the acoustic modal arrivals using signals transmitted from two sound sources to a vertical line hydrophone array in the 1996 Shelfbreak PRIMER experiment. Monterey, Calif: Naval Postgraduate School, 1998.

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Matthews, Scott T. Natural convection immersion cooling of an array of vertically oriented heated protrusions in an enclosure filled with a dielectric liquid: Effects of enclosure width, Prandtl number and component orientation. Monterey, Calif: Naval Postgraduate School, 1991.

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Transient Localization in Shallow Water Environments with a Vertical Line Array. Storming Media, 2000.

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Book chapters on the topic "Vertical array"

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Hodgkiss, W. S., J. C. Nickles, G. L. Edmonds, R. A. Harriss, and G. L. D’Spain. "A Large Dynamic Range Vertical Array of Acoustic Sensors." In Full Field Inversion Methods in Ocean and Seismo-Acoustics, 205–10. Dordrecht: Springer Netherlands, 1995. http://dx.doi.org/10.1007/978-94-015-8476-0_33.

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Goncharov, G. A., B. K. Bagildinsky, E. V. Kornilov, D. D. Polojentsev, K. V. Rumyantsev, and V. D. Shkutov. "The Modernization of the Pulkovo Photographic (Photoelectric) Vertical Circle by a CCD Array." In New Developments in Array Technology and Applications, 333–34. Dordrecht: Springer Netherlands, 1995. http://dx.doi.org/10.1007/978-94-011-0383-1_47.

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Wu, Xuzi, and Yongliang Sun. "Adaptive Beamforming of Vertical Frequency Diverse Array for Airborne Radar." In Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering, 203–9. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-22968-9_18.

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Murphy, Donald A., and Donald R. Del Balzo. "Multipath Processing for Improved Detection on a Long Vertical Array." In Progress in Underwater Acoustics, 765–72. Boston, MA: Springer US, 1987. http://dx.doi.org/10.1007/978-1-4613-1871-2_90.

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Hines, Paul C., and Matt Coffin. "Acoustic inversion at low kHz frequencies using an active, vertical line array." In Acoustic Sensing Techniques for the Shallow Water Environment, 47–55. Dordrecht: Springer Netherlands, 2006. http://dx.doi.org/10.1007/978-1-4020-4386-4_4.

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Xiang, Long, Jian-Jiang Ding, Xiao-Wei Shi, and Zhi-Fang Zuo. "Analysis and Estimation of Vertical Beam Characteristic Parameters for Phased Array Radar." In Electronics, Communications and Networks V, 119–25. Singapore: Springer Singapore, 2016. http://dx.doi.org/10.1007/978-981-10-0740-8_14.

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Malavena, Gerardo. "Modeling of GIDL–Assisted Erase in 3–D NAND Flash Memory Arrays and Its Employment in NOR Flash–Based Spiking Neural Networks." In Special Topics in Information Technology, 43–53. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-85918-3_4.

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AbstractSince the very first introduction of three-dimensional (3–D) vertical-channel (VC) NAND Flash memory arrays, gate-induced drain leakage (GIDL) current has been suggested as a solution to increase the string channel potential to trigger the erase operation. Thanks to that erase scheme, the memory array can be built directly on the top of a $$n^+$$ n + plate, without requiring any p-doped region to contact the string channel and therefore allowing to simplify the manufacturing process and increase the array integration density. For those reasons, the understanding of the physical phenomena occurring in the string when GIDL is triggered is important for the proper design of the cell structure and of the voltage waveforms adopted during erase. Even though a detailed comprehension of the GIDL phenomenology can be achieved by means of technology computer-aided design (TCAD) simulations, they are usually time and resource consuming, especially when realistic string structures with many word-lines (WLs) are considered. In this chapter, an analysis of the GIDL-assisted erase in 3–D VC nand memory arrays is presented. First, the evolution of the string potential and GIDL current during erase is investigated by means of TCAD simulations; then, a compact model able to reproduce both the string dynamics and the threshold voltage transients with reduced computational effort is presented. The developed compact model is proven to be a valuable tool for the optimization of the array performance during erase assisted by GIDL. Then, the idea of taking advantage of GIDL for the erase operation is exported to the context of spiking neural networks (SNNs) based on NOR Flash memory arrays, which require operational schemes that allow single-cell selectivity during both cell program and cell erase. To overcome the block erase typical of nor Flash memory arrays based on Fowler-Nordheim tunneling, a new erase scheme that triggers GIDL in the NOR Flash cell and exploits hot-hole injection (HHI) at its drain side to accomplish the erase operation is presented. Using that scheme, spike-timing dependent plasticity (STDP) is implemented in a mainstream NOR Flash array and array learning is successfully demonstrated in a prototype SNN. The achieved results represent an important step for the development of large-scale neuromorphic systems based on mature and reliable memory technologies.
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Chiu, Ching-Sang, James H. Miller, Warren W. Denner, and James F. Lynch. "Forward Modeling of the Barents Sea Tomography Vertical Line Array Data and Inversion Highlights." In Full Field Inversion Methods in Ocean and Seismo-Acoustics, 237–42. Dordrecht: Springer Netherlands, 1995. http://dx.doi.org/10.1007/978-94-015-8476-0_38.

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Avedik, Félix. "Sea-Floor Seismology : Mobile Ocean Bottom Vertical Seismic Array (OBVSA) for Controlled Source Experiments." In Ocean Seismo-Acoustics, 863–70. Boston, MA: Springer US, 1986. http://dx.doi.org/10.1007/978-1-4613-2201-6_81.

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Guo, Y. C., Z. C. Liu, S. C. Mohapatra, and C. Guedes Soares. "Experimental investigation of an array of vertical flexible net-type structures under regular waves." In Trends in Maritime Technology and Engineering Volume 2, 573–80. London: CRC Press, 2022. http://dx.doi.org/10.1201/9781003320289-60.

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Conference papers on the topic "Vertical array"

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Haghighi, Nasibeh, Philip Moser, Martin Zorn, and James A. Lott. "19-element 2D honeycomb VCSEL array." In Vertical-Cavity Surface-Emitting Lasers XXV, edited by Kent D. Choquette and Chun Lei. SPIE, 2021. http://dx.doi.org/10.1117/12.2576846.

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Strzebonski, Pawel, Harshil Dave, Katherine Lakomy, Nusrat Jahan, William North, and Kent Choquette. "Computational methods for VCSEL array characterization and control." In Vertical-Cavity Surface-Emitting Lasers XXV, edited by Kent D. Choquette and Chun Lei. SPIE, 2021. http://dx.doi.org/10.1117/12.2585066.

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Pissis, Antoine, Urs Siegenthaler, Donato Bonfrate, Pratyush Das Kanungo, and Evgeny Zibik. "Monolithic multiwavelength VCSEL array with intra-cavity grating." In Vertical-Cavity Surface-Emitting Lasers XXVI, edited by Kent D. Choquette and Luke A. Graham. SPIE, 2022. http://dx.doi.org/10.1117/12.2606826.

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Kondo, Takashi, Masaaki Kitsunai, Shogo Komagata, Seiji Ohno, and Hiroyuki Usami. "Temperature characteristics of all monolithically integrated self-scanning VCSEL array." In Vertical-Cavity Surface-Emitting Lasers XXIII, edited by Kent D. Choquette and Luke A. Graham. SPIE, 2019. http://dx.doi.org/10.1117/12.2509433.

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Zhong, Qian, and Ronald W. Yeung. "Wave-Body Interactions Among an Array of Truncated Vertical Cylinders." In ASME 2016 35th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/omae2016-55055.

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A semi-analytical method is developed to investigate water-wave radiation and diffraction by an array of truncated vertical cylinders as a model for a point-absorber wave farm. Each cylinder can have independent movements in six modes. The method of matched eigenfunction expansions is applied to obtain the velocity potential for the fluid. To achieve fast computation, the effects of evanescent modes of locally scattered waves from one cylinder are neglected in the near fields of the neighboring cylinders. Wave-exciting forces and moments on an individual cylinder or a group of cylinders, situated among an array, are evaluated by a new, generalized form of Haskind relation that is applicable to an array configuration. In results, hydrodynamic coefficients and wave-exciting loads are presented for arrays of different configurations. Comparisons between wave-exciting loads obtained from the generalized Haskind relation and those from direct diffraction solutions show excellent agreements.
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Von Lehmen, A., M. Orenstein, C. Chang-Hasnain, T. Banwell, J. Wullert, N. Stoffel, L. Florez, and J. Harbison. "Rastered operation of row-column addressed vertical-cavity surface-emitting laser array." In OSA Annual Meeting. Washington, D.C.: Optica Publishing Group, 1990. http://dx.doi.org/10.1364/oam.1990.mk7.

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The use of vertical-cavity surface-emitting (VCSE) laser arrays has been discussed for a number of applications; these include optical interconnects1 and beam steering in display and holographic-memory applications.2 Previously, we have described the fabrication of a matrix, or row-column-addressable InGaAs/GaAs VCSE laser array.3 This array is a 32 × 32 element array in which the electrical contact geometry is such that all lasers in each row and in each column are connected. Such a scheme is extremely attractive because it requires only 2N bond pads to address N devices. It is particularly appropriate for the two applications described above. In this paper, we will discuss rastered operation of matrix-addressed laser arrays. This involves sending streams of time-multiplexed data along the row/column address lines. Each laser device is enabled only when it simultaneously receives "on" pulses from the row and column data streams. The uniformity of various operating characteristics across the array under row–column addressing will also be discussed.
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Kerekes, Bibi Cagdas. "End-fired Vertical Marine Source Array." In Offshore Technology Conference. Offshore Technology Conference, 2011. http://dx.doi.org/10.4043/21131-ms.

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Kuroki, Futoshi, and Tomonori Morita. "Consideration on beam scanning antenna using vertical strip transmission line radiator at 600Hz." In 2013 IEEE International Symposium on Phased Array Systems and Technology (ARRAY 2013). IEEE, 2013. http://dx.doi.org/10.1109/array.2013.6731835.

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Orenstein, M., and E. Kapon. "Phase-locked arrays of vertical cavity surface-emitting semiconductor lasers." In OSA Annual Meeting. Washington, D.C.: Optica Publishing Group, 1991. http://dx.doi.org/10.1364/oam.1991.tugg1.

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Abstract:
Recently, several groups reported the observation of phase-locking in vertical cavity surface-emitting laser (VCSEL) arrays.1,2 The most efficient phase-locking was obtained using internal diffractive coupling, brought about by a tailored spatial mirror reflectivity modulation.1 Following a critical review of the various coupling methods available for VCSEL arrays, the reflectivity modulation method and its compatibility with the special features of VCSELs are analyzed. Exploiting the high efficiency of this coupling method, we were able to design and fabricate a number of array geometries tailored for various uses. High peak power (>300 mW) coherent beams were obtained from rectangular multielement arrays with optimized laser size, element spacing, and reflectivity modulation depth. Beams with a prescribed number of equal-intensity lobes (e.g., twenty lobes) were obtained using ring shaped arrays for the implementation of fanned-out laser sources. In both of these examples the two-dimensionality of the arrays played a major role: stabilizing the coherent output mode and adding modal design flexibility. The importance of both the array geometry and its dimensionality are discussed in detail. Theoretical analysis of the modal behavior using coupledmode theory for the weak coupling cases, and beam propagation methods for the strong coupling regime agrees well with measured array characteristics. Finally, the possibility of dynamically shaping the coherent modes by changing the current injection pattern to the array elements are discussed.
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Zhang, Weihua. "Vertical plasmonic nanocavity array for sensing applications." In 2016 Progress in Electromagnetic Research Symposium (PIERS). IEEE, 2016. http://dx.doi.org/10.1109/piers.2016.7735448.

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Reports on the topic "Vertical array"

1

Hodgkiss, William S. Vertical Source Array Experiment. Fort Belvoir, VA: Defense Technical Information Center, July 1997. http://dx.doi.org/10.21236/ada333278.

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Hodgkiss, W. S. Vertical Source Array Development. Fort Belvoir, VA: Defense Technical Information Center, August 1995. http://dx.doi.org/10.21236/ada306531.

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Westwood, Evan K., and Tracianne B. Neilsen. Geoacoustic Inversion Using Vertical Line Array Data. Fort Belvoir, VA: Defense Technical Information Center, September 2000. http://dx.doi.org/10.21236/ada610153.

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Berman, David H. Sound Speed Profiles from Vertical Array Data. Fort Belvoir, VA: Defense Technical Information Center, March 1994. http://dx.doi.org/10.21236/ada283978.

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Westwood, Evan K., and Tracianne B. Neilsen. Geoacoustic Inversion Using Vertical Line Array Data. Fort Belvoir, VA: Defense Technical Information Center, September 1999. http://dx.doi.org/10.21236/ada629836.

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Berman, David H. Sound Speed Profiles from Vertical Array Data. Fort Belvoir, VA: Defense Technical Information Center, June 1993. http://dx.doi.org/10.21236/ada267300.

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Baggeroer, A. B., K. Lashkari, Ching-sang Chiu, J. H. Miller, P. Mikhalevsky, and K. von der Heydt. Vertical array receptions of the Heard Island transmissions. Office of Scientific and Technical Information (OSTI), March 1993. http://dx.doi.org/10.2172/10159314.

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Erik C. Westman. 24-CHANNEL GEOPHONE ARRAY FOR HORIZONTAL OR VERTICAL BOREHOLES. Office of Scientific and Technical Information (OSTI), October 2003. http://dx.doi.org/10.2172/838445.

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Westman, Erik C. 24-CHANNEL GEOPHONE ARRAY FOR HORIZONTAL OR VERTICAL BOREHOLES. Office of Scientific and Technical Information (OSTI), July 2002. http://dx.doi.org/10.2172/802176.

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Westman, Erik C. 24 CHANNEL GEOPHONE ARRAY FOR HORIZONTAL OR VERTICAL BOREHOLES. Office of Scientific and Technical Information (OSTI), July 2002. http://dx.doi.org/10.2172/802178.

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