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Journal articles on the topic 'Zero-delay'

Author: Grafiati

Published: 4 June 2021

Last updated: 5 February 2022

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1

Dong, Guo Yan. "Metamaterials with Zero Phase Delay." Advanced Materials Research 873 (December 2013): 465–70. http://dx.doi.org/10.4028/www.scientific.net/amr.873.465.

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During the early years of research into metamaterials, some interest has shifted towards the realization of materials that exhibit zero or near-zero refractive index. A refractive index of zero implies that light enters a state of quasi-infinite phase velocity and infinite wavelength. Instead of strong resonance mechanism in metamaterials, the physical phenomenon of PhC is based on the special dispersion relations of photonic bands with weak loss. Several different metamaterials to realize zero phase delay are introduced in this paper. Their remarkable properties should have significant technological applications in photon delay lines with zero phase difference, information-processing devices, new optical phase control and measurement techniques.

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2

ZHOU, Ji, Ke BI, and GuoYan DONG. "Zero phase delay in metamaterials." SCIENTIA SINICA Physica, Mechanica & Astronomica 44, no. 4 (March 1, 2014): 406–16. http://dx.doi.org/10.1360/sspma2013-00081.

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3

Gai, Silvano, Fabio Somenzi, and Massimo Spalla. "Zero delay elements in logic simulation." Microprocessing and Microprogramming 16, no. 4-5 (November 1985): 335–39. http://dx.doi.org/10.1016/0165-6074(85)90025-0.

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4

Akyol, Emrah, Kumar B. Viswanatha, Kenneth Rose, and Tor A. Ramstad. "On Zero-Delay Source-Channel Coding." IEEE Transactions on Information Theory 60, no. 12 (December 2014): 7473–89. http://dx.doi.org/10.1109/tit.2014.2361532.

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5

Efendovich, A., Y. Afek, C. Sella, and Z. Bikowsky. "Multifrequency zero-jitter delay-locked loop." IEEE Journal of Solid-State Circuits 29, no. 1 (1994): 67–70. http://dx.doi.org/10.1109/4.272097.

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6

Zhou, Mi, Yixin Gu, and Bayaner Arigong. "A Zero Phase Delay Power Divider Using Zero Phase Impedance Transformer." IEEE Microwave and Wireless Components Letters 28, no. 10 (October 2018): 876–78. http://dx.doi.org/10.1109/lmwc.2018.2864959.

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7

Fong, Silas L. "Classes of Delay-Independent Multimessage Multicast Networks With Zero-Delay Nodes." IEEE Transactions on Information Theory 62, no. 1 (January 2016): 384–400. http://dx.doi.org/10.1109/tit.2015.2501363.

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8

Kaspi, Yonatan, and Neri Merhav. "Zero-Delay and Causal Secure Source Coding." IEEE Transactions on Information Theory 61, no. 11 (November 2015): 6238–50. http://dx.doi.org/10.1109/tit.2015.2466697.

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9

Matloub, Shahriyar, and Tsachy Weissman. "Universal Zero-Delay Joint Source–Channel Coding." IEEE Transactions on Information Theory 52, no. 12 (December 2006): 5240–50. http://dx.doi.org/10.1109/tit.2006.885537.

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10

Jayant, N. S., and V. Ramamoorthy. "Digital Coding of Speech with Zero Delay." IETE Journal of Research 34, no. 1 (January 1988): 37–43. http://dx.doi.org/10.1080/03772063.1988.11436702.

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11

Jung, Donghwan, and Jea Soo kim. "Time delay estimation via zero-crossing of envelope." Journal of the Acoustical Society of America 143, no. 3 (March 2018): 1957. http://dx.doi.org/10.1121/1.5036429.

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12

Gai, S., F. Somenzi, and M. Spalla. "Fast and Coherent Simulation with Zero Delay Elements." IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems 6, no. 1 (January 1987): 85–93. http://dx.doi.org/10.1109/tcad.1987.1270249.

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13

Weng, Wentao, and Weina Wang. "Achieving Zero Asymptotic Queueing Delay for Parallel Jobs." Proceedings of the ACM on Measurement and Analysis of Computing Systems 4, no. 3 (November 30, 2020): 1–36. http://dx.doi.org/10.1145/3428327.

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14

Gonzalez, A. M., and J. M. Llaberia. "Reducing branch delay to zero in pipelined processors." IEEE Transactions on Computers 42, no. 3 (March 1993): 363–71. http://dx.doi.org/10.1109/12.210179.

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15

Il’in, A. V., E. I. Atamas, and V. V. Fomichev. "Inversion of hyperoutput time-delay systems." Доклады Академии наук 484, no. 5 (May 16, 2019): 538–41. http://dx.doi.org/10.31857/s0869-56524845538-541.

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An inversion problem for LTI hyperoutput time-delay system is considered. For such systems canonical form with isolated zero dynamics is obtained, system invariant zeros and their relation to spectral observability of zero dynamics subsystem are investigated. Using this results, inversion algorithm is suggested for time-delay systems.

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16

HU, GUANG-PING, WAN-TONG LI, and XIANG-PING YAN. "HOPF BIFURCATION AND STABILITY OF PERIODIC SOLUTIONS IN THE DELAYED LIÉNARD EQUATION." International Journal of Bifurcation and Chaos 18, no. 10 (October 2008): 3147–57. http://dx.doi.org/10.1142/s0218127408022317.

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In this paper, the classical Liénard equation with a discrete delay is considered. Under the assumption that the classical Liénard equation without delay has a unique stable trivial equilibrium, we consider the effect of the delay on the stability of zero equilibrium. It is found that the increase of delay not only can change the stability of zero equilibrium but can also lead to the occurrence of periodic solutions near the zero equilibrium. Furthermore, the stability of bifurcated periodic solutions is investigated by applying the normal form theory and center manifold reduction for functional differential equations. Finally, in order to verify these theoretical conclusions, some numerical simulations are given.

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17

Zeng, Cheng, Shan Liang, Jiaqi Zhong, and Yingying Su. "Improvement of the Asymptotic Properties of Zero Dynamics for Sampled-Data Systems in the Case of a Time Delay." Abstract and Applied Analysis 2014 (2014): 1–12. http://dx.doi.org/10.1155/2014/817534.

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It is well known that the existence of unstable zero dynamics is recognized as a major barrier in many control systems, and deeply limits the achievable control performance. When a continuous-time system with relative degree greater than or equal to three is discretized using a zero-order hold (ZOH), at least one of the zero dynamics of the resulting sampled-data model is obviously unstable for sufficiently small sampling periods, irrespective of whether they involve time delay or not. Thus, attention is here focused on continuous-time systems with time delay and relative degree two. This paper analyzes the asymptotic behavior of zero dynamics for the sampled-data models corresponding to the continuous-time systems mentioned above, and further gives an approximate expression of the zero dynamics in the form of a power series expansion up to the third order term of sampling period. Meanwhile, the stability of the zero dynamics is discussed for sufficiently small sampling periods and a new stability condition is also derived. The ideas presented here generalize well-known results from the delay-free control system to time-delay case.

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18

Jones, L. G. "An incremental zero/integer delay switch-level simulation environment." IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems 11, no. 9 (1992): 1131–39. http://dx.doi.org/10.1109/43.159999.

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19

Szymanski, T. H., and D. Gilbert. "Internet Multicasting of IPTV With Essentially-Zero Delay Jitter." IEEE Transactions on Broadcasting 55, no. 1 (March 2009): 20–30. http://dx.doi.org/10.1109/tbc.2008.2007455.

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20

Polonsky, S. "Delay insensitive RSFQ circuits with zero static power dissipation." IEEE Transactions on Appiled Superconductivity 9, no. 2 (June 1999): 3535–38. http://dx.doi.org/10.1109/77.783793.

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21

Linder, Tamas, and Serdar Yuksel. "On Optimal Zero-Delay Coding of Vector Markov Sources." IEEE Transactions on Information Theory 60, no. 10 (October 2014): 5975–91. http://dx.doi.org/10.1109/tit.2014.2346780.

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22

Fong, Silas L., and Raymond W. Yeung. "Cut-Set Bounds for Networks With Zero-Delay Nodes." IEEE Transactions on Information Theory 61, no. 7 (July 2015): 3837–50. http://dx.doi.org/10.1109/tit.2015.2432760.

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23

Akyol, Emrah, Kenneth Rose, and Tamer Basar. "Optimal Zero-Delay Jamming Over an Additive Noise Channel." IEEE Transactions on Information Theory 61, no. 8 (August 2015): 4331–44. http://dx.doi.org/10.1109/tit.2015.2445344.

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24

Herrmann, J., M. Lucchini, S. Chen, M. Wu, A. Ludwig, L. Kasmi, K. J. Schafer, L. Gallmann, M. B. Gaarde, and U. Keller. "Multiphoton transitions for delay-zero calibration in attosecond spectroscopy." New Journal of Physics 17, no. 1 (January 9, 2015): 013007. http://dx.doi.org/10.1088/1367-2630/17/1/013007.

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25

Vaguina, M. Yu, and M. M. Kipnis. "Stability of the Zero Solution of Delay Differential Equations." Mathematical Notes 74, no. 5/6 (November 2003): 740–43. http://dx.doi.org/10.1023/b:matn.0000009007.19235.5a.

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26

Tokarzewski, Jerzy. "Zeros in linear systems with time delay in state." International Journal of Applied Mathematics and Computer Science 19, no. 4 (December 1, 2009): 609–17. http://dx.doi.org/10.2478/v10006-009-0048-9.

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Zeros in linear systems with time delay in stateThe concept of invariant zeros in a linear time-invariant system with state delay is considered. In the state-space framework, invariant zeros are treated as triples: complex number, nonzero state-zero direction, input-zero direction. Such a treatment is strictly related to the output-zeroing problem and in that spirit the zeros can be easily interpreted. The problem of zeroing the system output is discussed. For systems of uniform rank, the first nonzero Markov parameter comprises a certain amount of information concerning invariant zeros, output-zeroing inputs and zero dynamics. General formulas for output-zeroing inputs and zero dynamics are provided.

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27

Etherajan, Theranirajan, S. Zahir Hussain, Karthick Rajendran, Arunkumar Ramachandran, Murugan Natrajan, Nisha Venugopalan, Kathiravan Elumalai, et al. "Profile of COVID-19 Patients at Zero Delay COVID-19 Ward, Tertiary Care Hospital in South India." Journal of Primary Care & Community Health 12 (January 2021): 215013272110350. http://dx.doi.org/10.1177/21501327211035094.

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Introduction: Coronavirus disease 2019 (COVID-19) pandemic is a worldwide public health crisis. During huge surge in COVID-19 cases, most of the patient arrived at Rajiv Gandhi Government General Hospital, Chennai were severe due to late presentation and also available evidence demonstrating that the delay in treatment is directly associated with increased mortality or poor patient outcome. As an innovative concept of Zero Delay COVID-19 Ward were set up to provide the required critical care for all severe COVID-19 cases. The experience of setting up of such Zero Delay COVID-19 Ward and profile of admitted COVID-19 patients were described in this paper. Methods: A total of 4515 laboratory-confirmed COVID-19 patients admitted at Zero Delay COVID-19 Ward was analyzed retrospectively from 7th July to 31st December 2020. Results: At the time of admission the frequency of dyspnea were 85.6% among them 99.1% recovered from dyspnea after the oxygen therapy and other management at Zero Delay COVID-19 Ward. Of the 4515 COVID-19 individuals, about 1829 (40.5%) had comorbidity, 227 (5%) had died. Multivariable logistic regression analysis, COVID-19 death was more likely to be associated with comorbidity (OR: 18.687; 95% CI: 11.229-31.1) than other variables. Conclusions: Comorbidity is an independent high risk factor for mortality of COVID-19 patients. From our observation, it is strongly recommended that effective zero delay covid-19 ward model will help for the prevention of mortality in current/expected waves of COVID-19.

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28

Mei Li, 梅理, 崇毓华 Chong Yuhua, 朱宇鹏 Zhu Yupeng, 彭卫 Peng Wei, and 王冰 Wang Bing. "基于可调光延迟线的微波光子零中频接收机研究." Chinese Journal of Lasers 48, no. 9 (2021): 0906001. http://dx.doi.org/10.3788/cjl202148.0906001.

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29

Gourley, S. A., and S. Ruan. "Dynamics of the diffusive Nicholson's blowflies equation with distributed delay." Proceedings of the Royal Society of Edinburgh: Section A Mathematics 130, no. 6 (December 2000): 1275–91. http://dx.doi.org/10.1017/s0308210500000688.

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In this paper we study the diffusive Nicholson's blowflies equation. Generalizing previous works, we model the generation delay by using an integral convolution over all past times and results are obtained for general delay kernels as far as possible. The linearized stability of the non-zero uniform steady state is studied in detail, mainly by using the principle of the argument. Global stability both of this state and of the zero state are studied by using energy methods and by employing a comparison principle for delay equations. Finally, we consider what bifurcations are possible from the non-zero uniform state in the case when it is unstable.

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30

Nguyen, Kim-Doang. "Uniform continuity and delay robustness of an adaptive controller for Lagrangian systems." IMA Journal of Mathematical Control and Information 37, no. 2 (April 29, 2019): 559–88. http://dx.doi.org/10.1093/imamci/dnz013.

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Abstract This paper presents a method based on a continuity argument for analysing the delay robustness of nonlinear control systems with uncertainties. In particular, a delay-dependent stability condition is established in the form of a norm inequality for an adaptive control system with a time delay in the control input. The continuous dependence of the condition on the delay is derived via the uniform continuity in the delay of the fundamental solution of a general linear time-varying delay-differential equation. Since the stability condition holds when the delay is zero, the condition must be true for a certain non-zero positive delay due to continuity. Numerical simulations show the performance and robustness of the control system in the presence of an input delay. Remarkably, the results also illustrate a close agreement with the dependence on control parameters of the transient performance bounds predicted by the theoretical analysis in this paper.

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31

Dong, Guo Yan, Xiu Lun Yang, and Xiang Feng Meng. "A Novel Method to Realize Zero Phase Delay of Electromagnetic Wave." Advanced Materials Research 760-762 (September 2013): 315–19. http://dx.doi.org/10.4028/www.scientific.net/amr.760-762.315.

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Zero phase delay of electromagnetic wave (EMW) transmission can be realized based on the wavefront modulation of photonic crystals (PhCs). When the phase velocity is controlled perpendicular to the group velocity with wavefronts (or phasefronts) parallel to the direction of energy flow, the phase will keep constant in transmission process despite of the increase of propagating length. The phase different between the incident and transmitted waves is measured to demonstrate that the phase can remain invariable in PhCs instead of zero-index materials or zero-averaged-index PhC superlattices. This effect can be extended to other artificially engineered materials, and will open a new route to obtain perfect zero-phase delay propagation for EMW.

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32

Jiang, Jiao, Yongli Song, and Pei Yu. "Delay-Induced Triple-Zero Bifurcation in a Delayed Leslie-Type Predator–Prey Model with Additive Allee Effect." International Journal of Bifurcation and Chaos 26, no. 07 (June 30, 2016): 1650117. http://dx.doi.org/10.1142/s0218127416501170.

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In this paper, a Leslie-type predator–prey model with ratio-dependent functional response and Allee effect on prey is considered. We first study the existence of the multiple positive equilibria and their stability. Then we investigate the effect of delay on the distribution of the roots of characteristic equation and obtain the conditions for the occurrence of simple-zero, double-zero and triple-zero singularities. The formulations for calculating the normal form of the triple-zero bifurcation of the delay differential equations are derived. We show that, under certain conditions on the parameters, the system exhibits homoclinic orbit, heteroclinic orbit and periodic orbit.

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33

Fuglsig, Andreas Jonas, and Jan Østergaard. "Zero-Delay Multiple Descriptions of Stationary Scalar Gauss-Markov Sources." Entropy 21, no. 12 (December 1, 2019): 1185. http://dx.doi.org/10.3390/e21121185.

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In this paper, we introduce the zero-delay multiple-description problem, where an encoder constructs two descriptions and the decoders receive a subset of these descriptions. The encoder and decoders are causal and operate under the restriction of zero delay, which implies that at each time instance, the encoder must generate codewords that can be decoded by the decoders using only the current and past codewords. For the case of discrete-time stationary scalar Gauss—Markov sources and quadratic distortion constraints, we present information-theoretic lower bounds on the average sum-rate in terms of the directed and mutual information rate between the source and the decoder reproductions. Furthermore, we show that the optimum test channel is in this case Gaussian, and it can be realized by a feedback coding scheme that utilizes prediction and correlated Gaussian noises. Operational achievable results are considered in the high-rate scenario using a simple differential pulse code modulation scheme with staggered quantizers. Using this scheme, we achieve operational rates within 0.415 bits / sample / description of the theoretical lower bounds for varying description rates.

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34

Al-Hashimi, B. M., F. Dudek, and M. Moniri. "Current-mode group-delay equalisation using pole–zero mirroring technique." IEE Proceedings - Circuits, Devices and Systems 147, no. 4 (2000): 257. http://dx.doi.org/10.1049/ip-cds:20000426.

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35

Huang, Kaibin, and Vincent K. N. Lau. "Stability and Delay of Zero-Forcing SDMA With Limited Feedback." IEEE Transactions on Information Theory 58, no. 10 (October 2012): 6499–514. http://dx.doi.org/10.1109/tit.2012.2209551.

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36

Kocaman, S., M. S. Aras, P. Hsieh, J. F. McMillan, C. G. Biris, N. C. Panoiu, M. B. Yu, D. L. Kwong, A. Stein, and C. W. Wong. "Zero phase delay in negative-refractive-index photonic crystal superlattices." Nature Photonics 5, no. 8 (July 10, 2011): 499–505. http://dx.doi.org/10.1038/nphoton.2011.129.

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37

Yun, Seokho, Zhi Hao Jiang, Qian Xu, Zhiwen Liu, Douglas H. Werner, and Theresa S. Mayer. "Low-Loss Impedance-Matched Optical Metamaterials with Zero-Phase Delay." ACS Nano 6, no. 5 (May 2, 2012): 4475–82. http://dx.doi.org/10.1021/nn3012338.

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38

Guoyan, Dong, Bi Ke, Zhou Ji, Yang Xiulun, and Meng Xiangfeng. "Zero phase delay with relax incident condition in photonic crystals." Optics Express 21, no. 24 (November 26, 2013): 29860. http://dx.doi.org/10.1364/oe.21.029860.

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39

Merhav, N., and I. Kontoyiannis. "Source coding exponents for zero-delay coding with finite memory." IEEE Transactions on Information Theory 49, no. 3 (March 2003): 609–25. http://dx.doi.org/10.1109/tit.2002.808137.

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40

Violante, M. "Accurate single-event-transient analysis via zero-delay logic simulation." IEEE Transactions on Nuclear Science 50, no. 6 (December 2003): 2113–18. http://dx.doi.org/10.1109/tns.2003.820729.

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41

Conte, G., and M. Perdon. "A Notion of Zero Dynamics for Linear, Time-delay System." IFAC Proceedings Volumes 41, no. 2 (2008): 1255–60. http://dx.doi.org/10.3182/20080706-5-kr-1001.00216.

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42

Boussaada, Islam, and Silviu-Iulian Niculescu. "Characterizing the Codimension of Zero Singularities for Time-Delay Systems." Acta Applicandae Mathematicae 145, no. 1 (April 29, 2016): 47–88. http://dx.doi.org/10.1007/s10440-016-0050-9.

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43

He, Xing, Chuandong Li, Tingwen Huang, and Junjian Huang. "Zero-Hopf singularity in bidirectional ring network model with delay." Nonlinear Dynamics 78, no. 4 (August 3, 2014): 2605–16. http://dx.doi.org/10.1007/s11071-014-1612-x.

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44

Li, Yingli, and Daolin Xu. "Chaotification of quasi-zero-stiffness system with time delay control." Nonlinear Dynamics 86, no. 1 (July 5, 2016): 353–68. http://dx.doi.org/10.1007/s11071-016-2893-z.

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45

Wu, Xiaoqin P. "Simple-Zero and Double-Zero Singularities of a Kaldor-Kalecki Model of Business Cycles with Delay." Discrete Dynamics in Nature and Society 2009 (2009): 1–29. http://dx.doi.org/10.1155/2009/923809.

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We study the Kaldor-Kalecki model of business cycles with delay in both the gross product and the capital stock. Simple-zero and double-zero singularities are investigated when bifurcation parameters change near certain critical values. By performing center manifold reduction, the normal forms on the center manifold are derived to obtain the bifurcation diagrams of the model such as Hopf, homoclinic and double limit cycle bifurcations. Some examples are given to confirm the theoretical results.

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46

Liu, Yuji, and Binggen Zhang. "Global attractivity of a class of delay differential equations with impulses." ANZIAM Journal 45, no. 2 (October 2003): 271–84. http://dx.doi.org/10.1017/s1446181100013328.

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AbstractIn this paper, we study the global attractivity of the zero solution of a particular impulsive delay differential equation. Some sufficient conditions that guarantee every solution of the equation converges to zero are obtained.

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47

Jung, Yongchul, Jaechan Cho, Seongjoo Lee, and Yunho Jung. "Area-Efficient Pipelined FFT Processor for Zero-Padded Signals." Electronics 8, no. 12 (November 22, 2019): 1397. http://dx.doi.org/10.3390/electronics8121397.

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This paper proposes an area-efficient fast Fourier transform (FFT) processor for zero-padded signals based on the radix-2 2 and the radix-2 3 single-path delay feedback pipeline architectures. The delay elements for aligning the data in the pipeline stage are one of the most complex units and that of stage 1 is the biggest. By exploiting the fact that the input data sequence is zero-padded and that the twiddle factor multiplication in stage 1 is trivial, the proposed FFT processor can dramatically reduce the required number of delay elements. Moreover, the 256-point FFT processors were designed using hardware description language (HDL) and were synthesized to gate-level circuits using a standard cell library for 65 nm CMOS process. The proposed architecture results in a logic gate count of 40,396, which can be efficient and suitable for zero-padded FFT processors.

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48

Dahiya, Sunil, Mehra S. Sidhu, Akansha Tyagi, Ankur Mandal, Biplob Nandy, Jan M. Rost, Thomas Pfeifer, and Kamal P. Singh. "In-line ultra-thin attosecond delay line with direct absolute-zero delay reference and high stability." Optics Letters 45, no. 18 (September 15, 2020): 5266. http://dx.doi.org/10.1364/ol.403842.

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49

Lu, Hong Qian, Xing Ping Liu, and Wu Neng Zhou. "Delay Dependent H∞ Stochastic Stability Analysis for Stochastic Nonlinear Delay Hybrid Singular System." Advanced Materials Research 765-767 (September 2013): 520–23. http://dx.doi.org/10.4028/www.scientific.net/amr.765-767.520.

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This paper deals with the problem of stochastic stability analysis for stochastic nonlinear delay hybrid singular system in this paper. Based on linear matrix inequality approach, a delay dependent condition is proposed, which ensures the stochastic nonlinear delay hybrid singular system is stochastically stable with H performance under zero initial conditions. Finally, an example is provided to demonstrate the effectiveness of the proposed approach.

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50

Li, Xiu Yun, Cheng Zeng, Tong Zhou, Yan Jun Ren, and Yu Xuan Li. "Asymptotic Properties of Sampling Zero Dynamics for Nonlinear Systems in the Case of Time Delay and Relative Degree Two." Advanced Materials Research 1061-1062 (December 2014): 893–98. http://dx.doi.org/10.4028/www.scientific.net/amr.1061-1062.893.

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It is well-known that stability of zero dynamics is often inevitable to the controller design. And most real world plants often involve a time delay. This paper investigates the zero dynamics, as the sampling period tends to zero, of a sampled-data model composed of a zero-order hold (ZOH), a continuous-time plant with a time delay and a sampler in cascade. We first present how an approximate sampled-data model can be obtained for the nonlinear system with relative degree two, and the local truncation error between the output of obtained model and the true system output is of order , where T is the sampling period and r is the relative degree. Furthermore, we also propose the additional zero dynamics in the sampling process, which are called the sampling zero dynamics, and the condition for assuring the stability of sampling zero dynamics for the desired model is derived. The results presented here generalize a well-known notion of sampling zero dynamics from the linear case to nonlinear systems.

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