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Relevant bibliographies by topics / Clockwork mechanism

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Academic literature on the topic 'Clockwork mechanism'

Author: Grafiati

Published: 6 September 2023

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Journal articles on the topic "Clockwork mechanism"

1

Wood, Kieran, Paul M. Saffin, and Anastasios Avgoustidis. "Clockwork cosmology." Journal of Cosmology and Astroparticle Physics 2023, no. 07 (2023): 062. http://dx.doi.org/10.1088/1475-7516/2023/07/062.

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Abstract The higher order generalisation of the clockwork mechanism to gravitational interactions provides a means to generate an exponentially suppressed coupling to matter from a fundamental theory of multiple interacting gravitons, without introducing large hierarchies in the underlying potential and without the need for a dilaton, suggesting a possible application to the hierarchy problem. We work in the framework of ghost free multi-gravity with “nearest-neighbour” interactions, and present a formalism by which one is able to construct potentials such that the theory will always exhibit t

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Bai, Long, Fan Zheng, Xiaohong Chen, Yuanxi Sun, and Junzhan Hou. "Design and Experimental Evaluation of a Single-Actuator Continuous Hopping Robot Using the Geared Symmetric Multi-Bar Mechanism." Applied Sciences 9, no. 1 (2018): 13. http://dx.doi.org/10.3390/app9010013.

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This paper proposes the design and performance evaluation of a miniaturized continuous hopping robot RHop for unstructured terrain. The hopping mechanism of RHop is realized by an optimized geared symmetric closed-chain multi-bar mechanism that is transformed from the eight-bar mechanism, and the actuator of RHop is realized by a servo motor and the clockwork spring, thereby enabling RHop to realize continuous hopping while its motor rotates continuously only in one direction. Comparative simulations and experiments are conducted for RHop. The results show that RHop can realize better continuo

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Banerjee, I., T. Salih, H. Ramachandraiah, et al. "Slipdisc: a versatile sample preparation platform for point of care diagnostics." RSC Advances 7, no. 56 (2017): 35048–54. http://dx.doi.org/10.1039/c7ra05209j.

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A novel POC sample preparation technology, “Slipdisc”, based rotational slipchip technology is presented. In operation, the hand-winded slipdisc platform uses a unique clockwork mechanism to manipulate minute amount of liquids.

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Bennet-Clark, H. C., and Winston J. Bailey. "Ticking of the clockwork cricket: the role of the escapement mechanism." Journal of Experimental Biology 205, no. 5 (2002): 613–25. http://dx.doi.org/10.1242/jeb.205.5.613.

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SUMMARYThe ‘clockwork cricket’ model for cricket sound production suggests that the catch-and-release of the file of one forewing by the plectrum on the opposite wing act as an ‘escapement’ to provide the phasic impulses that initiate and sustain the vibration of the resonant regions of the wings from which the sounds are produced. The action of the escapement produces the familiar ticking sound of clocks.The higher-frequency components of the songs of twelve species of cricket were analysed after removing the dominant low-frequency components and amplifying the remaining higher-frequency comp

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Chrysoula Markou. "The Linear Dilaton: from the Clockwork Mechanism to Its Supergravity Embedding." Physics of Particles and Nuclei Letters 17, no. 5 (2020): 660–62. http://dx.doi.org/10.1134/s1547477120050271.

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Herzog, Erik D., and William J. Schwartz. "Invited Review: A neural clockwork for encoding circadian time." Journal of Applied Physiology 92, no. 1 (2002): 401–8. http://dx.doi.org/10.1152/japplphysiol.00836.2001.

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10.1152/japplphysiol.00836.2001.—Many daily biological rhythms are governed by an innate timekeeping mechanism or clock. Endogenous, temperature-compensated circadian clocks have been localized to discrete sites within the nervous systems of a number of organisms. In mammals, the master circadian pacemaker is the bilaterally paired suprachiasmatic nucleus (SCN) in the anterior hypothalamus. The SCN is composed of multiple single cell oscillators that must synchronize to each other and the environmental light schedule. Other tissues, including those outside the nervous system, have also been sh

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Cattenoz, Pierre B., and Angela Giangrande. "New insights in the clockwork mechanism regulating lineage specification: Lessons from theDrosophilanervous system." Developmental Dynamics 244, no. 3 (2014): 332–41. http://dx.doi.org/10.1002/dvdy.24228.

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Pacelli, Consiglia, Giovannina Rotundo, Lucia Lecce, et al. "Parkin Mutation Affects Clock Gene-Dependent Energy Metabolism." International Journal of Molecular Sciences 20, no. 11 (2019): 2772. http://dx.doi.org/10.3390/ijms20112772.

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Growing evidence highlights a tight connection between circadian rhythms, molecular clockworks, and mitochondrial function. In particular, mitochondrial quality control and bioenergetics have been proven to undergo circadian oscillations driven by core clock genes. Parkinson’s disease (PD) is a chronic neurodegenerative disease characterized by a selective loss of dopaminergic neurons. Almost half of the autosomal recessive forms of juvenile parkinsonism have been associated with mutations in the PARK2 gene coding for parkin, shown to be involved in mitophagy-mediated mitochondrial quality con

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Imamura, Kiyomichi, Hikari Yoshitane, Kazuki Hattori, et al. "ASK family kinases mediate cellular stress and redox signaling to circadian clock." Proceedings of the National Academy of Sciences 115, no. 14 (2018): 3646–51. http://dx.doi.org/10.1073/pnas.1719298115.

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Daily rhythms of behaviors and physiologies are generated by the circadian clock, which is composed of clock genes and the encoded proteins forming transcriptional/translational feedback loops (TTFLs). The circadian clock is a self-sustained oscillator and flexibly responds to various time cues to synchronize with environmental 24-h cycles. However, the key molecule that transmits cellular stress to the circadian clockwork is unknown. Here we identified apoptosis signal-regulating kinase (ASK), a member of the MAPKKK family, as an essential mediator determining the circadian period and phase o

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Shi, Yuxuan, Yanyu Wang, and Haoran Zheng. "Wind Speed Prediction for Offshore Sites Using a Clockwork Recurrent Network." Energies 15, no. 3 (2022): 751. http://dx.doi.org/10.3390/en15030751.

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Offshore sites show greater potential for wind energy utilization than most onshore sites. When planning an offshore wind power farm, the speed of offshore wind is used to estimate various operation parameters, such as the power output, extreme wind load, and fatigue load. Accurate speed prediction is crucial to the running of wind power farms and the security of smart grids. Unlike onshore wind, offshore wind has the characteristics of random, intermittent, and chaotic, which will cause the time series of wind speeds to have strong nonlinearity. It will bring greater difficulties to offshore

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Dissertations / Theses on the topic "Clockwork mechanism"

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Mundy, Wayne Russell. "The analysis of runaway escapements utilised in clockwork mechanisms." Thesis, 2014. http://hdl.handle.net/10210/11663.

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M. Ing. (Mechanical Engineering)<br>Runaway escapements of various types are utilised as timing regulators or inertial governors in clockwork mechanisms. This work developed a computer simulation of a spring driven runaway escapement having a flat sided pallet. The mathematical analysis took into account the three motion regimes of the escapement, that is, coupled motion, free motion and impact, and allows for equal and unequal arm pallets and pallets with arbitrarily located centres of mass. Rotor disc friction was also taken into account. Three escapement types were designed using geometric

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Kushwaha, Ashwani. "Novel Pathways for Beyond Standard Model Physics." Thesis, 2020. https://etd.iisc.ac.in/handle/2005/5209.

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In the light of discovering the Higgs boson and null results at the LHC, we look for new pathways for Beyond Standard Model Physics, which could accommodate at least one of the Standard Model shortcomings. (i) Unification with Vector like particles. We look for minimal extensions of the Standard Model with Vector like fermions leading to precision perturbative unification of gauge couplings. Constraints from proton decay and Higgs stability are considered. The minimal models require two different incomplete representations (under SU(5)) of fermions. All of them contain coloured vector fe

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Books on the topic "Clockwork mechanism"

1

Clockwork garden: On the mechanistic reduction of living things. University of Massachusetts Press, 1986.

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2

Geĭko, A. G. Mekhanicheskie dikoviny: Muzykalʹnye, chasovye, animat︠s︡ionnye mekhanizmy vekov v sobranii Gosudarstvennogo Ėrmitazha : katalog vystavki = Mechanical curiosities : musical, clockwork, animated mechanisms from the 17th--19th centuries in the State Hermitage collection : exhibition catalogue. Izdatelʹstvo Gosudarstvennogo Ėrmitazha, 2015.

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3

Kamiya, Yuu. Clockwork Planet. Kodansha Comics, an imprint of Kodansha USA Publishing, LLC, 2017.

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4

Kamiya, Yuu. Clockwork planet. Kodansha Comics, an imprint of Kodansha USA Publishing, LLC, 2017.

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Kamiya, Yuu. Clockwork planet. 2018.

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Kamiya, Yuu. Clockwork planet. 2017.

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Kamiya, Yuu. Clockwork planet. Kodansha Comics, an imprint of Kodansha USA Publishing, LLC, 2017.

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Kamiya, Yuu. Clockwork planet. 2017.

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Kamiya, Yuu. Clockwork planet. Kodansha Comics, an imprint of Kodansha USA Publishing, LLC, 2017.

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Kamiya, Yuu. Clockwork planet. 2018.

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Book chapters on the topic "Clockwork mechanism"

1

Bencze, Lajos, and Robert Kurdi. "Nanomolecular Switches Operated by Clockwork Mechanism." In Metathesis Chemistry. Springer Netherlands, 2007. http://dx.doi.org/10.1007/978-1-4020-6091-5_29.

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2

Callegari, Massimo, Paolo Clini, Luca Carbonari, Renato Angeloni, Mirco D’Alessio, and Cecilia Scoccia. "Ctesibius, Vitruvius and Leonardo: A Digital Reconstruction of the Water Clockwork Timeline." In Explorations in the History and Heritage of Machines and Mechanisms. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-98499-1_12.

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3

Boullin, David J. "Mechanical Control of Gaslight: an Account of Clockwork Mechanisms Used for Operating Gaslights." In The History and Preservation of Chemical Instrumentation. Springer Netherlands, 1986. http://dx.doi.org/10.1007/978-94-009-4690-3_15.

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4

"Clockwork Mechanics." In Encyclopedia of Renaissance Philosophy. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-319-14169-5_300057.

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"The Mechanics of Progress." In The Clockwork Muse. Harvard University Press, 1999. http://dx.doi.org/10.2307/j.ctvjhzsj2.8.

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6

Nepstad, Sharon Erickson. "APPLICATIONS OF CLOCKWORK." In A General History of Horology. Oxford University PressOxford, 2022. http://dx.doi.org/10.1093/oso/9780198863915.003.0023.

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Abstract Geared or clockwork mechanisms have many time-related uses beyond straightforward time-telling. In science, orreries offer models of the solar system; short-duration timing (for sports as well) is achieved with chronoscopes, chronographs, and stopwatches; instruments such as telescopes require drives to keep them aligned on target, while heliostats, siderostats, and coelostats maintain a fixed relationship between two objects, one celestial and one local. Time signatures in music can be followed with metronomes, while clocks have provided time for car drivers on the move since the early days of the automobile. Night watchman’s clocks, or noctuaries, provide tamperproof recording devices to monitor the diligence of security staff in making their rounds. Finally, when cooking on open fires, clockwork roasting-jacks allowed the regular and consistent turning of meats to be roasted.

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Wilson Ruffo, Kathleen. "Like Clockwork: Timely Authorial Mechanisms in Guillaume de Machaut." In The Worlds of Villard de Honnecourt: The Portfolio, Medieval Technology, and Gothic Monuments. BRILL, 2022. http://dx.doi.org/10.1163/9789004529106_012.

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Magee, Patrick, and Mark Tooley. "Intravenous Pumps and Syringe Drivers." In The Physics, Clinical Measurement and Equipment of Anaesthetic Practice for the FRCA. Oxford University Press, 2011. http://dx.doi.org/10.1093/oso/9780199595150.003.0031.

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Many infusions are given by gravity assisted, drip sets that give a flowrate dependent on the height of the reservoir above the patient, the length of the tubing, the bore of the IV cannula, the density and viscosity of the fluid being delivered, and the patient’s venous pressure. However there is an increasing tendency to use programmable volumetric intravenous pumps and syringe drivers to deliver intravenous anaesthesia, fluids, patient controlled analgesia, epidural infusions and other drugs. Not only are they programmable, but they can also be adjusted to give desired flowrates or volumes. Some infusion devices are powered only by gravity, but the flowrate is controlled by a photoelectric drip rate detector in conjunction with a microprocessor controlled drip occlusion device. Other infusion devices use a stepper motor to control the rate of infusion. A stepper motor is designed so that the rotation is by a fixed amount per supplied electrical pulse, independent of the mechanical load it is carrying. The pulses are controlled by a microprocessor in the pump and the rate of infusion is dependent on the stepper motor’s output. Syringe drivers are designed to use a range of syringe sizes and some require special delivery tubing. The flow is a continuous, pulsatile flow and accuracy is 2–5%. Some syringe drivers are driven by clockwork motors, others by a battery powered motor that is intermittently on and off, depending on required flowrate. The driving mechanism is usually by a screw threaded rod connected to the syringe plunger. Other syringe drivers use a stepper motor connected to the screw threaded rod. Care should be taken not to position the syringe driver above the patient’s venous cannula or the syringe may siphon a drug additional to that programmed on the driver, by virtue of the weight of the column of fluid in the tubing above the patient. Care should also be taken to avoid any bubbles in the syringe reaching the patient. Modern syringe drivers are usually sufficiently accurate over the desired range of infusion [Stokes et al. 1990]. However, there may be a delay before the drug is delivered to the patient as the parts attached to the syringe take up slack [O’Kelly et al. 1992].

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Andrewes, William. "Introducing Martin Burgess, Clockmaker." In Harrison Decoded. Oxford University Press, 2020. http://dx.doi.org/10.1093/oso/9780198816812.003.0003.

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In 1775, two years after receiving the second half of the Longitude Prize, John Harrison (1693–1776) published a book, which, among other things, described a pendulum clock that could keep time to one second in 100 days. His claim of such unprecedented accuracy for a clock with a pendulum swinging in free air (i.e. not in a vacuum) was met with ridicule both at the time of its publication and for the next two centuries. This chapter describes the early life of Martin Burgess, the clockmaker who proved that Harrison’s claim was indeed true. Like Harrison, Martin was a self-taught clockmaker. From his training in the arts and crafts, he saw the mechanics of clockwork as sculpture in its own right, each element contributing to the overall design. Martin’s upbringing, his education, and his unusual lifestyle and approach were all crucial to his quest to prove that John Harrison was right.

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