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Статті в журналах з теми "Self-oscillating mode"

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Indeitsev, D. A., O. S. Loboda, N. F. Morozov, D. Yu Skubov, and L. V. Shtukin. "Self-Oscillating Mode of a Nanoresonator." Physical Mesomechanics 21, no. 3 (May 2018): 203–7. http://dx.doi.org/10.1134/s1029959918030037.

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Manning, L., B. Rogers, M. Jones, J. D. Adams, J. L. Fuste, and S. C. Minne. "Self-oscillating tapping mode atomic force microscopy." Review of Scientific Instruments 74, no. 9 (September 2003): 4220–22. http://dx.doi.org/10.1063/1.1602935.

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3

Ali, Samer, Zein Alabidin Shami, Ali Badran, and Charbel Habchi. "Heat transfer enhancement using second mode self-oscillating structures." International Journal of Numerical Methods for Heat & Fluid Flow 30, no. 7 (November 22, 2019): 3827–42. http://dx.doi.org/10.1108/hff-07-2019-0583.

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Purpose In this paper, self-sustained second mode oscillations of flexible vortex generator (FVG) are produced to enhance the heat transfer in two-dimensional laminar flow regime. The purpose of this study is to determine the critical Reynolds number at which FVG becomes more efficient than rigid vortex generators (RVGs). Design/methodology/approach Ten cases were studied with different Reynolds numbers varying from 200 to 2,000. The Nusselt number and friction coefficients of the FVG cases are compared to those of RVG and empty channel at the same Reynolds numbers. Findings For Reynolds numbers higher than 800, the FVG oscillates in the second mode causing a significant increase in the velocity gradients generating unsteady coherent flow structures. The highest performance was obtained at the maximum Reynolds number for which the global Nusselt number is improved by 35.3 and 41.4 per cent with respect to empty channel and rigid configuration, respectively. Moreover, the thermal enhancement factor corresponding to FVG is 72 per cent higher than that of RVG. Practical implications The results obtained here can help in the design of novel multifunctional heat exchangers/reactors by using flexible tabs and inserts instead of rigid ones. Originality/value The originality of this paper is the use of second mode oscillations of FVG to enhance heat transfer in laminar flow regime.
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Polyakov, Dmitry N., Valeria V. Shumova, and Leonid M. Vasilyak. "Self-Oscillating Mode of Dusty Plasma and Particles Separation." IEEE Transactions on Plasma Science 42, no. 10 (October 2014): 2684–85. http://dx.doi.org/10.1109/tps.2014.2311584.

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Watanabe, Toshiro. "Oscillation of modes of some semi-stable Lévy processes." Nagoya Mathematical Journal 132 (December 1993): 141–53. http://dx.doi.org/10.1017/s0027763000004682.

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In this paper it is shown that there is a unimodal Levy process with oscillating mode. After the author first constructed an example of such a self-decomposable process, Sato pointed out that it belongs to the class of semi-stable processes with β < 0. We prove that all non-symmetric semi-stable self-decomposable processes with β < 0 have oscillating modes.
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Giessibl, Franz J., and Marco Tortonese. "Self-oscillating mode for frequency modulation noncontact atomic force microscopy." Applied Physics Letters 70, no. 19 (May 12, 1997): 2529–31. http://dx.doi.org/10.1063/1.118910.

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Yu, Tae-Jun, Jai-Hee Sung, and Chang-Hee Nam. "Self-Oscillating, Third-Harmonic Mode-Locked l-GHz Nd:YLF Laser." Journal of the Optical Society of Korea 3, no. 2 (September 1, 1999): 51–54. http://dx.doi.org/10.3807/josk.1999.3.2.051.

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Biswas, S. K., and B. Basak. "A New Self-Oscillating Inverter for Switch Mode Power Supplies." IETE Journal of Research 31, no. 5 (September 1985): 187–89. http://dx.doi.org/10.1080/03772063.1985.11436530.

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Zöllner, Jens-Peter, Steve Durstewitz, Jaqueline Stauffenberg, Tzvetan Ivanov, Mathias Holz, Waleed Ehrhardt, W. Ulrich Riegel, and Ivo W. Rangelow. "Gas-Flow Sensor Based on Self-Oscillating and Self-Sensing Cantilever." Proceedings 2, no. 13 (December 3, 2018): 846. http://dx.doi.org/10.3390/proceedings2130846.

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In this work the application of a self-sensing and self-actuating cantilever for gas-flow measurement is investigated. The cantilever placed in the flow is excited permanently at its first resonance mode. Simultaneously the resonance amplitude, the resonance frequency and the static bending of the cantilever are detected. All three sizes are related to the velocity of the gas-flow.
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Khawaja, Bilal A., and Martin J. Cryan. "A Millimeter-Wave Self-Oscillating Mixer Using a Mode-Locked Laser." IEEE Transactions on Microwave Theory and Techniques 58, no. 11 (November 2010): 3352–58. http://dx.doi.org/10.1109/tmtt.2010.2077513.

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Дисертації з теми "Self-oscillating mode"

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Drechsel, James S. "Characterization of Synthetic, Self-Oscillating Vocal Fold Models." BYU ScholarsArchive, 2008. https://scholarsarchive.byu.edu/etd/1590.

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The vocal folds are essential for speech production, and a better understanding of vocal fold vibration characteristics may help improve treatments of voice disorders. However, studying real vocal folds presents significant challenges. In-vivo studies are limited by access and safety issues. Excised larynges have a short useable lifetime (on the order of minutes) and are difficult to parameterize. In contrast, synthetic vocal fold models have long useable lifetimes and can be easily parameterized. In this thesis, a series of tests performed on recently developed synthetic, self-oscillating models of the human vocal folds are discussed. These tests include measurements of vibration frequency, sub-glottal pressure, and time-averaged flow rate. The differences between one-layer and two-layer synthetic models are evaluated. Comparisons are made between synthetic model and real vocal fold behavior. The synthetic model is shown to have vibrated at frequencies, pressures, and flow rates consistent with human phonation. The influence of sub-glottal tube length on model vibration frequency is examined. Motion is observed using high-speed imaging. Velocity measurements of the glottal jet using particle image velocitmetry (PIV) were performed with and without an idealized vocal tract, including the effects of the false folds, for various cases of vocal tract asymmetry. Glottal jet velocities measured using PIV were consistent with velocities measured using excised larynges. A starting vortex was observed in all test cases. The presence of the false folds acted to restrain the sides of the starting vortex, and in some cases created new vortical structures shed from the false folds. An algorithm was created to calculate and visualize the jet core centerline. In the vocal tract cases, the glottal jet tended to skew toward the nearest wall; in the false fold cases, the opposite trend was observed as the jet skewed away from the nearest wall (towards the midplane). Plots of RMS velocity showed distinct regions of shear layer and jet core. Vocal tract cases at pressures much greater than phonation onset pressure showed significant increases in RMS velocities compared to open jet and false fold cases.
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Денисенко, Владислав Русланович. "Гідродинаміка неоднорідного псевдозрідження". Master's thesis, Київ, 2019. https://ela.kpi.ua/handle/123456789/27646.

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Об’єкт дослідження: гідродинаміка при пульсаційному псевдозрідженні. Предмет дослідження: якісні характеристики гідродинаміки неоднорідного псевдозрідження при грануляції. Метою роботи є встановлення закономірностей процесу неоднорідного струменево-пульсаційного псевдозрідження в автоколивальному режимі при підвищених висотах шару зернистого матеріалу та розроблення методики розрахунку промислових апаратів для грануляції. Сформульовано принцип взаємодії газового суцільного середовища із зернистим матеріалом для реалізації струменево-пульсаційного режиму псевдозрідження при Zf/H₀≤0,21. Експериментально визначено порозності в зонах камери гранулятора при неоднорідному псевдозрідженні в автоколивальному режимі при п’ятикратному перевищенню висоти нерухомого шару H₀ висоти пробою газового струменя Zf. Експериментально досліджено вплив висоти зернистого матеріалу на динаміку зміни порозності та індекс перемішування в базових зонах апарату. Підтверджено дослідженнями, що процес грануляції при застосуванні неоднорідного струменево-пульсаційного псевдозрідження за підвищених висот шару зернистого матеріалу призводить до інтенсифікації тепломасообмінних процесів в 1,6 рази в порівнянні із барботажним.
The object of the research: the hydrodynamics during the pulsation fluidization. The subject of the research: quality characteristics of hydrodynamics of nonuniform fluidization during the granulation process. The aim of the work is establishment of the regularities of the process of non-uniform fluidization in the application of pulsation in self-oscillating mode at elevated height of a layer of granular material and development of methods of calculation of industrial machines. Formulated the principle of interaction of a gas continuous medium with a granular material for the realization of jet pulsation mode of fluidization in Zf/H₀≤0,21. Experimentally determined voids in the areas of camera granulator in self-oscillating mode of fluidization when a fivefold excess of the height of the fixed bed height H₀ of the breakdown of the gas jet Zf. Experimentally investigated the influence of the height of granular material at the dynamics of void and the index of mixing in the core zones of the apparatus. The study proves that the granulation process in the application of a nonuniform jet-pulsed fluidization at elevated heights of a layer of granular material leads to intensification of heat and mass transfer processes in 1,6 times in comparison with barbotine.
Объект исследования: гидродинамика при пульсационном псевдоожижении. Предмет исследования: качественные характеристики гидродинамики неоднородного псевдоожижения при грануляции. Целью работы является установление закономерностей процесса неоднородного струйно-пульсационного псевдоожижения в автоколебательном режиме при повышенных высотах слоя зернистого материала и разработка методики расчета промышленных аппаратов для грануляции. Сформулирован принцип взаимодействия газовой сплошной среды с зернистым материалом для реализации струйно-пульсационного режима псевдоожижения при Zf/H₀≤0,21. Экспериментально определено порозности в зонах камеры гранулятора при неоднородном псевдоожижении в автоколебательном режиме при пятикратном превышению высоты неподвижного слоя H₀ высоты пробоя газового факела Zf. Экспериментально исследовано влияние высоты зернистого материала на динамику изменения порозности и индекс перемешивания в базовых зонах аппарата. Подтверждено исследованиями, что процесс грануляции при применении неоднородного струйно-пульсационного псевдоожижения при повышенных высотах слоя зернистого материала приводит к интенсификации тепломассообменных процессов в 1,6 раза в сравнении с барботажним.
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Juan-YiLin and 林峻毅. "AC-Side Continuous-Conduction-Mode Power-Factor-Correction Self-Oscillating LLC LED Driver." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/tax9wr.

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Chuang, Kai-Jie, and 莊凱傑. "An Adaptive Mode-Hopping, Self-Oscillating DC-DC Converter with Full Inductor-Current Sensing Technique." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/58424649687732511055.

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Анотація:
碩士
元智大學
電機工程學系
97
An adaptive mode-hopping and self-oscillating DC-DC converter is presented in this thesis. This converter had fast transient response and system stable response. A multi-detector and a full inductor-current sensing technique area are applied on the loop controller of this DC-DC converter. The inductor current level is detected by active full inductor current sensor, so as to limit the maximum and minimum inductor current. Three control modes are constructed for reaching the best efficiency distribution to load condition. The proposed adaptive mode-hopping mechanism activates the converter to switch between CCM and DCM modes when necessarily during normal operation. The idle-mode is utilized at every light load to reduce the switching losses and enhance the conversion efficiency. It is deduced from simulation results that the efficiency of the DC-DC converter can be up to 93.5% on the conditions that the maximum peak-to peak output voltage ripple is less than 22mV and the output current ranges are between 50mA and 350mA. The DC-DC converter operates at a frequency ranging from 0.3 to 1.7MHz and a supply voltage ranging from 2.4 to 4.2V. The DC-DC converter was implemented in TSMC 0.35-μm 2P4M CMOS process with die size of 1.97 mm2.
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Jun-WeiChang and 張峻瑋. "AC-Side Continuous-Conduction-Mode Charge-Pump Power-Factor-Correction Self-Oscillating Full-Bridge Electronic Ballasts." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/44409221481056346644.

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Анотація:
碩士
國立成功大學
電機工程學系專班
98
This thesis presents AC-side continuous-conduction-mode (CCM) charge-pump (CP) power-factor-correction (PFC) self-oscillating full-bridge electronic ballasts, which include voltage-source (VS) type and current-source (CS) type. The disadvantages of the conventional discontinuous-conduction-mode (DCM) PFC electronic ballasts include high current stress, high di/dt and high conduction losses. In order to overcome the drawbacks of the conventional DCM PFC electronic ballasts, the conventional rectified-side CCM CP-PFC half-bridge electronic ballasts are proposed. Comparing with the conventional rectified-side CCM CP-PFC half-bridge electronic ballasts, the proposed AC-side CCM CP-PFC self-oscillating full-bridge electronic ballast has advantages of low THDi, high power factor, low di/dt, low current stress, low lamp current crest-factor (CF), low cost and more suitable for high power applications. The circuit analysis and the theoretical design criteria for the proposed AC-side CCM CPPFC self-oscillating full-bridge electronic ballasts are presented. Finally, 80W prototype circuits are built to validate the feasibility and performance of the proposed electronic ballast.
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Wu, Chung-Lin, and 吳忠霖. "A Synchronous, Self-Oscillating, Fully Integrated CMOS DC-DCConverter with a New Current Sensor and Adaptive Mode-Switching Mechanism." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/53071081460110492383.

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Анотація:
碩士
元智大學
電機工程學系
95
In this thesis, a high-efficiency CMOS DC-DC converter with a new active current sensor and adaptive modes-switching mechanism is presented. The new active current sensor is designed and employed to detect the inductor current level so as to limit the maximum inductor current and switch operation modes adaptively. In the proposed DC-DC converter, there are three operational control modes for optimum efficiency. The proposed control mechanism enables the converter to switch between CCM and DCM modes adaptively such that high conversion efficiency can be maintained no matter how the load current may change during normal operation. At very light load, on the other hand, the standby mode is utilized to reduce the frequency dependent losses, thus enhancing the conversion efficiency. The efficiency of the converter is up to 94% with the variation of the output voltage less than 20 mV between 50mA and 300mA of the load current value. The DC-DC converter operates at a switching frequency range between 300k and 1700 KHz with the supply voltage from 2.4V to 4.2 V. This chip and all the devices were fabricated in the TSMC 0.35-μm 2P4M CMOS process.
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Chung-Lin, Wu. "A Synchronous, Self-Oscillating, Fully Integrated CMOS DC-DC Converter with a New Current Sensor and Adaptive Mode-Switching Mechanism." 2007. http://www.cetd.com.tw/ec/thesisdetail.aspx?etdun=U0009-3001200721430500.

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Wu, Chung-Lin, and 吳忠霖. "A Synchronous, Self-Oscillating, Fully Integrated CMOS DC-DC Converter with a New Current Sensor and Adaptive Mode-Switching Mechanism." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/58138716458136812928.

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Анотація:
碩士
元智大學
電機工程學系
95
In this thesis, a high-efficiency CMOS DC-DC converter with a new active current sensor and adaptive modes-switching mechanism is presented. The new active current sensor is designed and employed to detect the inductor current level so as to limit the maximum inductor current and switch operation modes adaptively. In the proposed DC-DC converter, there are three operational control modes for optimum efficiency. The proposed control mechanism enables the converter to switch between CCM and DCM modes adaptively such that high conversion efficiency can be maintained no matter how the load current may change during normal operation. At very light load, on the other hand, the standby mode is utilized to reduce the frequency dependent losses, thus enhancing the conversion efficiency. The efficiency of the converter is up to 94% with the variation of the output voltage less than 20 mV between 50mA and 300mA of the load current value. The DC-DC converter operates at a switching frequency range between 300k and 1700 KHz with the supply voltage from 2.4V to 4.2 V. This chip and all the devices were fabricated in the TSMC 0.35-μm 2P4M CMOS process.
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Книги з теми "Self-oscillating mode"

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Epstein, Irving R., and John A. Pojman. An Introduction to Nonlinear Chemical Dynamics. Oxford University Press, 1998. http://dx.doi.org/10.1093/oso/9780195096705.001.0001.

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Just a few decades ago, chemical oscillations were thought to be exotic reactions of only theoretical interest. Now known to govern an array of physical and biological processes, including the regulation of the heart, these oscillations are being studied by a diverse group across the sciences. This book is the first introduction to nonlinear chemical dynamics written specifically for chemists. It covers oscillating reactions, chaos, and chemical pattern formation, and includes numerous practical suggestions on reactor design, data analysis, and computer simulations. Assuming only an undergraduate knowledge of chemistry, the book is an ideal starting point for research in the field. The book begins with a brief history of nonlinear chemical dynamics and a review of the basic mathematics and chemistry. The authors then provide an extensive overview of nonlinear dynamics, starting with the flow reactor and moving on to a detailed discussion of chemical oscillators. Throughout the authors emphasize the chemical mechanistic basis for self-organization. The overview is followed by a series of chapters on more advanced topics, including complex oscillations, biological systems, polymers, interactions between fields and waves, and Turing patterns. Underscoring the hands-on nature of the material, the book concludes with a series of classroom-tested demonstrations and experiments appropriate for an undergraduate laboratory.
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Частини книг з теми "Self-oscillating mode"

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Udalov, Pavel, Ivan Popov, and Alexey Lukin. "A Study of the Self-Oscillating Regime in the Problem of an Atomic Force Microscope in the Contact Mode." In NODYCON Conference Proceedings Series, 549–62. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-81162-4_48.

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Borckmans, P., K. Benyaich, A. De Wit, and G. Dewel. "A Model for Self-Oscillating Miniaturized Gels." In Nonlinear Dynamics in Polymeric Systems, 58–70. Washington, DC: American Chemical Society, 2003. http://dx.doi.org/10.1021/bk-2004-0869.ch005.

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Arnold, Vladimir Igorevich. "Loss of Stability of Equilibrium and of Self-Oscillating Modes of Behaviour." In Catastrophe Theory, 20–26. Berlin, Heidelberg: Springer Berlin Heidelberg, 1986. http://dx.doi.org/10.1007/978-3-642-96937-9_6.

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Arnold, Vladimir I. "Loss of Stability of Equilibrium and of Self-Oscillating Modes of Behaviour." In Catastrophe Theory, 20–30. Berlin, Heidelberg: Springer Berlin Heidelberg, 1992. http://dx.doi.org/10.1007/978-3-642-58124-3_6.

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Olmo, Marta del, Saskia Grabe, and Hanspeter Herzel. "Mathematical Modeling in Circadian Rhythmicity." In Methods in Molecular Biology, 55–80. New York, NY: Springer US, 2021. http://dx.doi.org/10.1007/978-1-0716-2249-0_4.

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AbstractCircadian clocks are autonomous systems able to oscillate in a self-sustained manner in the absence of external cues, although such Zeitgebers are typically present. At the cellular level, the molecular clockwork consists of a complex network of interlocked feedback loops. This chapter discusses self-sustained circadian oscillators in the context of nonlinear dynamics theory. We suggest basic steps that can help in constructing a mathematical model and introduce how self-sustained generations can be modeled using ordinary differential equations. Moreover, we discuss how coupled oscillators synchronize among themselves or entrain to periodic signals. The development of mathematical models over the last years has helped to understand such complex network systems and to highlight the basic building blocks in which oscillating systems are built upon. We argue that, through theoretical predictions, the use of simple models can guide experimental research and is thus suitable to model biological systems qualitatively.
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Schwarzacher, W. "Can The Ginsburg Model Generate Cycles?" In Computers in Geology - 25 Years of Progress. Oxford University Press, 1994. http://dx.doi.org/10.1093/oso/9780195085938.003.0017.

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The Ginsburg model of carbonate accumulation is an often-quoted mechanism for generating so-called autocycles. It is shown that the model does not represent a self-oscillating system; oscillations can only be generated if at least two critical parameters controlling sedimentation are introduced. The Ginsburg model is a conceptual model which tries to explain the behavior of some carbonate shelves that undergo continuous tectonic subsidence and that carry on their surface a very active carbonate factory. Unfortunately the original model has only been published in abstract form—the relevant part of which is quoted here in full (Ginsburg, 1971, p. 340): . . . "The Florida Bay lagoon and the tidal flats of the Bahamas and Persian Gulf are traps for line sediment produced on the large adjacent open platforms or shelves. The extensive source areas produce carbonate mud by precipitation and by the disintegration of organic skeletons. The carbonate mud moves shoreward by wind-driven, tidal or estuarinelike circulation, and deposition is accelerated and stabilized by marine plants and animals. Because the open marine source areas are many times larger than the nearshore traps, seaward progradation of the wedge of sediments is inevitable. This seaward progradation gives a regressive cycle from open marine shelf or platform to supratidal flat. As the shoreline progrades seaward the size of the open marine source area decreases; eventually reduced production of mud no longer exceeds slow continuous subsidence and a new transgression begins. When the source area expands so that production again exceeds subsidence a new regressive cycle starts.". . . The author is very grateful to Dr. Ginsburg for supplying some additional information that is not obvious from the abstract. The subsidence must be differential and a broad, open shelf that gradually tilts seaward is visualized. All of the sediment produced on the shelf is transported shoreward, where it accumulates as a wedge-shaped deposit that builds into a tidal bank. A further analysis of the model is interesting for two reasons. First, the model has been and still is seriously suggested as a possible mechanism to explain cyclicity on carbonate platforms (see Goldhammer et al, 1987, for references).
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Cruickshank, Ruth. "Food Questioning Values in Marie Darrieussecq’s Truismes/Pig Tales." In Leftovers, 129–62. Liverpool University Press, 2020. http://dx.doi.org/10.3828/liverpool/9781789620672.003.0005.

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Darrieussecq’s scandal-provoking Truismes/Pig Tales (1996), set in a near-future, neo-fascist France, involves much eating, drinking and consumption of others, whilst deliberately chewing up literary, political and feminist discourses. The naïve first-person narrator (as unaware of being a sex worker as she is of the intertexts which feed her retrospective account written in porcine form) experiences a metamorphosis oscillating between sex worker, submissive lover and sow, the flux marked by being consumed physically by food cravings and sexually by male abusers. Until momentarily fueled by acorns and truffles, self-expression through writing and eating involves danger, exemplifying the implications of the squandering of excess. Ambivalent traces of meaning in food-related truisms bring into question the possibility of countering patriarchal, capitalist violence – structural and overt. Carno-phallogocentric, cannibalistic, food- and sex-fueled soirées and the ‘others’ who serve and are sacrificed at them evoke the trauma of colonialism, the Holocaust (and French co-implication in it); excesses in turn linked to late capitalism. With the opposite of nurturing mother’s milk, and countering expectations of feminist readings, re-thinking representations of eating and drinking in Truismes raises questions of the conditions of production for and the consequences of (un)critical writing about gender, race and contemporary modes of consumption.
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8

Mckarnin, M. A., L. D. Schmidt, and R. Aris. "*Forced Oscillations of a Self-Oscillating Bimolecular Surface Reaction Model *Reprinted with the permission of the editor of the Proceedings of the Royal Society,A, volume 417, pp. 363–388, 1988." In Mathematical Modeling - A Chemical Engineer's Perspective, 307–33. Elsevier, 1999. http://dx.doi.org/10.1016/s1874-5970(99)80022-8.

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Тези доповідей конференцій з теми "Self-oscillating mode"

1

Evans, D. H. "A Millimetre-Wave Self-Oscillating Mixer using a GaAs FET Harmonic-Mode Oscillator." In 1986 16th European Microwave Conference. IEEE, 1986. http://dx.doi.org/10.1109/euma.1986.334203.

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2

Kovacevic, Milovan, Arnold Knott, and Michael A. E. Andersen. "A VHF interleaved self-oscillating resonant SEPIC converter with phase-shift burst-mode control." In 2014 IEEE Applied Power Electronics Conference and Exposition - APEC 2014. IEEE, 2014. http://dx.doi.org/10.1109/apec.2014.6803490.

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3

Shang, Fu-Min, Yi-Fang Dong, Jian-Hong Liu, and Deng-Ying Liu. "Experimental Investigation on the Heat Transferring of Nanofluid in Self-Exciting Mode Oscillating-Flow Heat." In ASME 2016 5th International Conference on Micro/Nanoscale Heat and Mass Transfer. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/mnhmt2016-6400.

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In this article, the heat transferring property of the copper-water nanofluids in self-exciting mode oscillating flow heat pipe under different laser heating power is experimented, as well as is compared with that of the distilled water medium in self-exciting mode oscillating flow heat pipe under same heating condition. The objective of this article is to provide the heat transfer characteristics of Cu-H2O nanofluids in self-exciting mode oscillating-flow heat pipe under different laser heating input, and to compare with the heat transfer characteristics of the same heat pipe with distilled water as working fluids. The SEMOS HP used in this experiment is made of brass tube with 2mm interior diameter, which is consisted of 8 straight tubes with 4 turns’ evaporation section and 12 turns’ condensation section. The heat resource for the evaporation zone is eight channel quantum pitfall diode array semi-conductor laser heater with 940nm radiation wave length, while the radiation power of each channel is changeable within 0–50W and the facular size is 1×30mm2. The condensation section is set in a cooling water tank in which water is from another higher tank. The actual transferring rate could be calculated by the flow rate of the cooling water and the change of the temperature. The change of the temperature of the heat pipe wall is measured by those thermo-couple fixed in different section in the heat pipe and data is collected by a data acquisition. In the heat pipe the fluid filling rate is 43%, the pressure is 2.5×10−3Pa, and the heat pipe inclination angle is 55° while the size of the brass particle in the nanofluids is less than 60nm and volume proportion is 0.5%. In this paper, the particularity of heat transfer rate of the SEMOS heat pipe with Cu-H2O fluid has been experimentally confirmed by changing the proportion of working fluid and Cu nonsocial particles in the heat pipe. By comparing the experimental result of these two different medium in the SEMOS HP, it is shown that the heat transferring rate with brass-water nanofluids as medium is much better than that with distilled water as medium under same volume proportion.
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4

Nielsen, Dennis, Anold Knott, and Michael A. E. Andersen. "Hysteretic self-oscillating bandpass current mode control for Class D audio amplifiers driving capacitive transducers." In 2013 IEEE ECCE Asia Downunder (ECCE Asia 2013). IEEE, 2013. http://dx.doi.org/10.1109/ecce-asia.2013.6579224.

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5

SHANG, FU-MIN, DENG-YING LIU, HAI-ZHEN XIAN, YONG-PING YANG, XIAO-ZE DU, and GUO-HUA CHEN. "EXPERIMENTS ON ENHANCED HEAT TRANSFER OF SELF-EXCITING MODE OSCILLATING-FLOW HEAT PIPE WITH NON-UNIFORM STRUCTURE." In The Proceedings of the 5th Asia-Pacific Drying Conference. World Scientific Publishing Company, 2007. http://dx.doi.org/10.1142/9789812771957_0016.

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6

Lin, Ray-Lee, and Jun-Wei Chang. "AC-side continuous-conduction-mode voltage-source charge-pump power-factor-correction self-oscillating full-bridge electronic ballast." In IECON 2010 - 36th Annual Conference of IEEE Industrial Electronics. IEEE, 2010. http://dx.doi.org/10.1109/iecon.2010.5675144.

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7

Pahlevani, Majid, Alireza Bakhshai, and Praveen Jain. "A novel digital peak-current-mode self-sustained oscillating control (PCM-SSOC) technique for a Dual-Active Bridge DC/DC converter." In 2015 IEEE Applied Power Electronics Conference and Exposition (APEC). IEEE, 2015. http://dx.doi.org/10.1109/apec.2015.7104802.

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8

Shang, F., H. Xian, D. Liu, X. Du, and Y. Yang. "Experimental investigation of enhanced heat transfer of self-exciting mode oscillating-flow heat pipe with non-uniform profile under laser heating." In HEAT AND MASS TRANSFER 2006. Southampton, UK: WIT Press, 2006. http://dx.doi.org/10.2495/ht060241.

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9

CHAI, BENYIN, XUANYOU LI, SHENJIE ZHOU, DENGYING LIU, XIAODONG GUO, and SHUAIJUN LI. "EXPERIMENTAL STUDY ON ENERGY THRIFT IN A FLUIDIZED BED DRYER WITH SELF-EXCITED MODE OSCILLATING-FLOW HEAT PIPE (SEMOS HEAT PIPE)." In The Proceedings of the 5th Asia-Pacific Drying Conference. World Scientific Publishing Company, 2007. http://dx.doi.org/10.1142/9789812771957_0088.

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10

Yoshida, T., and T. Watanabe. "Numerical Simulations of Two-Dimensional Incompressible Flows Over Cavities and Their Control." In ASME/JSME 2007 5th Joint Fluids Engineering Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/fedsm2007-37410.

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We investigate numerically self-sustained oscillating flows over open cavities. The incompressible Navier-Stokes equations are solved using finite difference method for two-dimensional cavities with an upstream laminar boundary layer. A series of simulations are performed for a variety of cavity length to depth ratio. The results show mode switchings among nonoscillations, mode II and mode III oscillations. Variation of Strouhal number is in good agreement with available experimental data. The results of flow fields in the cavity reveal the relationship between the cavity shear layer oscillation modes and recirculating vortices in the cavity. We also demonstrate that oscillations are suppressed by our control method using moving bottom wall.
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