Academic literature on the topic 'Decelerated motion'

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Journal articles on the topic "Decelerated motion"

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Afanasiev, G. N., and V. G. Kartavenko. "Cherenkov-like shock waves associated with surpassing the light velocity barrier." Canadian Journal of Physics 77, no. 7 (1999): 561–69. http://dx.doi.org/10.1139/p99-053.

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The effects arising from the accelerated and decelerated motion of a point charge inside a medium are studied. The motion is manifestly relativistic and may be produced by a constant uniform electric field. It is shown that in addition to the bremsstrahlung and Cherenkov shockwaves, the electromagnetic shock wave arises when the charged-particle velocity coincides with the light velocity in the medium. For the accelerated motion, this shock wave, forming an indivisible entity with the Cherenkov shock wave, arrives after the arrival of the bremsstrahlung shock wave. For the decelerated motion t
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Kotvytska, Klavdiia, and Zuzana Ješková. "Study of circular and rotational motion with the help of experimentation and mathematical modeling enhanced by digital technologies." Journal of Physics: Conference Series 2715, no. 1 (2024): 012018. http://dx.doi.org/10.1088/1742-6596/2715/1/012018.

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Abstract Circular and rotational motion belongs to basic topics studied at upper secondary school and courses on Mechanics at University. Many studies show problems in understanding basic concepts related to kinematics and dynamics of these motions. In this paper we present a series of inquiry activities aimed at developing the understanding of these concepts and the laws of circular and rotating motion with the effective use of digital technologies. The activity on the videomeasurement of a uniform and decelerating bicycle wheel motion analyses the basic kinematic concepts. In the experiments
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Popescu, Paul, and Marcela Popescu. "On a cotangent form of a nonholonomic lagrangian dynamics." ITM Web of Conferences 34 (2020): 03012. http://dx.doi.org/10.1051/itmconf/20203403012.

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A Lagrangian form of dynamic equations for nonlinear nonholonomic constraints was studied by the first author in a previous paper. The aim of this paper is to put these equations in a cotangent form, according to some regularity conditions. It is particularized as an example to a decelerated motion of a free particle, when some dual simple equations are obtained.
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Moriwaki, Tohru. "Consideration on Dynamics of Decelerated Ascent Motion of Grains in Inclined Disc Pelletizer." Journal of the Society of Powder Technology, Japan 38, no. 7 (2001): 473–81. http://dx.doi.org/10.4164/sptj.38.473.

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Glovnea, Romeo P., and Hugh A. Spikes. "Behavior of EHD Films During Reversal of Entrainment in Cyclically Accelerated/Decelerated Motion." Tribology Transactions 45, no. 2 (2002): 177–84. http://dx.doi.org/10.1080/10402000208982537.

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DE OLIVEIRA, H. P., I. DAMIÃO SOARES, and E. V. TONINI. "BLACK HOLE BREMSSTRAHLUNG: CAN IT BE AN EFFICIENT SOURCE OF GRAVITATIONAL WAVES?" International Journal of Modern Physics D 15, no. 12 (2006): 2203–8. http://dx.doi.org/10.1142/s0218271806009625.

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We propose a new source of gravitational waves in the context of full nonlinear General Relativity: the black hole bremsstrahlung. A black hole initially in uniform motion is decelerated along its direction of motion; as a consequence of the deceleration, a radiative transfer process is set up through which the black hole loses its kinetic energy along with part of its rest mass by the emission of gravitational waves. Depending on the initial velocity and the strength of the deceleration, this process can correspond to a high power output in the initial pulse of gravitational radiation emitted
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SCHAFFER, NICOLE, LUKE COPLAND, and CHRISTIAN ZDANOWICZ. "Ice velocity changes on Penny Ice Cap, Baffin Island, since the 1950s." Journal of Glaciology 63, no. 240 (2017): 716–30. http://dx.doi.org/10.1017/jog.2017.40.

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ABSTRACTPredicting the velocity response of glaciers to increased surface melt is a major topic of ongoing research with significant implications for accurate sea-level rise forecasting. In this study we use optical and radar satellite imagery as well as comparisons with historical ground measurements to produce a multi-decadal record of ice velocity variations on Penny Ice Cap, Baffin Island. Over the period 1985–2011, the six largest outlet glaciers on the ice cap decelerated by an average rate of 21 m a−1 over the 26 year period (0.81 m a−2), or 12% per decade. The change was not monotonic,
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Zhang, Qiujie, Huiming Shen, Xiufeng Qin, and Tianguo Lü. "Research on Acceleration Segmented Compensation Strategy for Backlash of CNC Machine Tools." Journal of Physics: Conference Series 2450, no. 1 (2023): 012066. http://dx.doi.org/10.1088/1742-6596/2450/1/012066.

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Abstract For the problem of backlash in the semi-closed-loop linear feed servo system of CNC machine tools, which seriously affects the accuracy of machine tools, an acceleration segmentation backlash compensation strategy is proposed. In the reverse motion of the servo motor, the servo motor is controlled to compensate for the backlash error during a period of accelerated motion and a period of decelerated motion. Based on the established backlash transmission model, the parameters of the compensated motion process are calculated. In order to ensure accurate and quick compensation of the gap
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Wu, H., and F.-L. Yang. "Influence of a nearby hemisphere on the immersed on-wall collision dynamics of a sphere." Journal of Mechanics 40 (2024): 759–68. https://doi.org/10.1093/jom/ufae054.

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ABSTRACT Systematic experiments were conducted to elucidate how the dynamics of a fully immersed spherical pendulum in a normal approach to a wall may change with the presence of a third object–a hemisphere added to the wall at different vertical distances from the collision point. The studied collision regime ranges from non-bouncing to bouncing by changing the pendulum’s size, density, release angle, and liquid viscosity. In the non-bouncing regime, we analyzed the approach motion and found that the hemisphere decelerates the pendulum approach when it enters the area within one diameter of t
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Dai, Jin Jin, Xiang Min Li, and Zi Fen Li. "Target Identification Method for Single-Ship Air-Defense Based on Kinematics Characteristics." Advanced Materials Research 546-547 (July 2012): 559–64. http://dx.doi.org/10.4028/www.scientific.net/amr.546-547.559.

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In this paper, a target identification method is proposed based on kinematics characteristics for single-ship air-defense. After seriously analyzing the characteristics of modern air strike targets, extracting methods of the features of height, velocity, acceleration, detection distance, continuous radial motion etc. is given. Then, three-layer identification structure is established: layer 1 can identify tactical ballistic missile (TBM) and armed helicopter (AH) according to height, velocity; layer 2 can identify anti-radiation missile (ARM) and precision guided bomb (PGB) according to the fe
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Books on the topic "Decelerated motion"

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Kalinichenko, Evgeny. Theory and methods for calculating the inertial-braking characteristics of a ship. «Scientific Route» OÜ, 2020. http://dx.doi.org/10.21303/978-617-7319-30-5.

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One of the most serious problems of modern navigation is the accident rate that occurs due to inept or belated maneuvering of ships. As a result of accidents in the world, more than 200 ships die every year and every fourth receives significant damage. Full-scale tests show that the stopping distance of large-tonnage ships turn out to be much less permissible, and shipbuilders are able to significantly reduce the astern power of such ships, making them cheaper at the expense of safety. The low accuracy of inertial-braking characteristics is mainly due to unqualified field tests. Analysis of gr
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Book chapters on the topic "Decelerated motion"

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Maccone, Claudio. "KLT of radio signals from relativistic spaceships in uniform and decelerated motion." In Mathematical SETI. Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-27437-4_18.

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Meijer, Gerard. "Manipulation and Control of Molecular Beams: The Development of the Stark-Decelerator." In Molecular Beams in Physics and Chemistry. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-63963-1_20.

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AbstractState-selective manipulation of beams of atoms and molecules with electric and magnetic fields has been crucial for the success of the field of molecular beams. Originally, this manipulation only involved the transverse motion. In this Chapter, the development of the Stark-decelerator, that allows to also manipulate and control the longitudinal motion of molecules in a beam, is presented.
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"KLT of radio signals from relativistic spaceships in uniform and decelerated motion." In Deep Space Flight and Communications. Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-540-72943-3_11.

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Yao, Panlong, and Jiamin Yu. "Claw Pole Parts Conveying and Attitude Adjustment Device." In Advances in Transdisciplinary Engineering. IOS Press, 2024. http://dx.doi.org/10.3233/atde240262.

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The claw pole part is an important part of the automobile generator, and its complex shape is a difficult point to be considered in the processing as well as the conveying process, and at present, in its production process, its main process is still completed by manual labor. In order to carry out a certain distance conveying in the process of claw pole parts processing, a ball screw structure combined with a belt conveyor feeding device is proposed, for the ball screw structure, the selection of ball screw analysis and design, and finite element analysis of the linear guide to support the tab
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Conference papers on the topic "Decelerated motion"

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Klekovkin, E. A., and E. G. Krylov. "About the Geometric Model anti-rise for a Mountain Bicycle with a Single-hinged Rear Suspension." In 2022 33th All-Russian Youth Exhibition of Innovations. Publishing House of Kalashnikov ISTU, 2022. http://dx.doi.org/10.22213/ie022123.

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Suspension of rear wheel of mountain bicycle is considered. Based on the solution of the kinetostatics problem for the physical model of a single-hinged suspension, a simplified geometric model anti-rise is built up. The model provides a method for evaluating the design of a bicycle, ensuring that it is stable and controllable during decelerated motion.
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Tan, Chin An, and Jinsha Li. "A Parametric Study on the Friction-Induced Vibration of a Brake Model During Decelerated Sliding." In ASME 2005 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2005. http://dx.doi.org/10.1115/detc2005-85361.

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In this paper, the friction-induced vibration of a simple disc brake model during decelerated sliding is investigated. A three-degree-of-freedom physical model of a disc brake system is considered; the brake pads are modeled as rigid blocks interacting with a rigid translating strip (rotor) through friction. This model simulates the transient dynamics of the longitudinal motions (in the direction of sliding) of the pads during braking. A Coulomb-type friction model is adopted, with the coefficient of friction approximated by an analytical function of the sliding speed at the rotor-pads interfa
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Suherman, Surjani, and Raymond H. Plaut. "Effects of Flexible Supports and Gyroscopic Moments on Passage of a Cracked Shaft Through a Critical Speed." In ASME 1995 Design Engineering Technical Conferences collocated with the ASME 1995 15th International Computers in Engineering Conference and the ASME 1995 9th Annual Engineering Database Symposium. American Society of Mechanical Engineers, 1995. http://dx.doi.org/10.1115/detc1995-0265.

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Abstract The motion of a cracked shaft with a rigid disk is analyzed as the system is accelerated or decelerated past the lowest critical speed. New features are the inclusion of flexible supports at the ends of the shaft and the gyroscopic effects of the disk. The supports are modeled with elastic springs and dashpots. Eccentricity of the disk, gravitational forces, and internal and external damping are also included. The shaft contains a single transverse crack that is assumed to be either completely open or completely closed at any given time, depending on the curvature of the shaft at the
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Lori, Augusto, Savaas Xanthos, Mahmoud Ardebili, and Yiannis Andreopoulos. "Micro-Actuated Delta Wings Induced Control of Boundary Layer Separation." In ASME 2006 2nd Joint U.S.-European Fluids Engineering Summer Meeting Collocated With the 14th International Conference on Nuclear Engineering. ASMEDC, 2006. http://dx.doi.org/10.1115/fedsm2006-98503.

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Control of boundary layer separation has been investigated employing an array of micro-actuated delta winglets. The flow with the array is simulated computationally in an initially two-dimensional boundary layer, which is subjected to a Favorable Pressure Gradient (FPG) that accelerated the flow substantially, followed by an Adverse Pressure Gradient (APG) where the flow decelerated, the two successive distortions cause a flow separation in the boundary layer developing on the opposite wall of the wind tunnel. The simulations capture vortices formed by the impulsive motion of the delta wings.
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Ahamed, Mohammed Jalal, Ridha Ben-Mrad, and Pierre Sullivan. "Electrowetting on Dielectric Based Droplet Transport Inside a Closed-Channel." In ASME 2010 International Mechanical Engineering Congress and Exposition. ASMEDC, 2010. http://dx.doi.org/10.1115/imece2010-39171.

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The paper reports Electrowetting on Dielectric (EWOD) actuated droplet transport characteristics inside a closed-channel. Traditional EWOD devices are open-plane wall-less devices within which droplets are either sitting on a substrate or sandwiched between top and bottom substrates. We investigated droplet motion by EWOD actuation inside a sealed closed-channel. Closed-channel EWOD actuation is useful for interfacing open-plane EWOD (digital) designs to closed continuous (analog) microfluidic devices. Some transport characteristics of the closed-channel EWOD actuation were investigated. Actua
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Rajaona, Dominique R., and Toky Ramanakoto. "On the Intrinsic Mechanism of Wakes Interference Past Two Cylinders Towed Beneath a Free Surface." In ASME 2013 32nd International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/omae2013-10446.

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An experimental study of the flow past a set of two horizontal cylinders is presented. The cylinders are towed in a uniformly accelerated and decelerated motion in a visualization tank in order to enhance the vortex effects. The main cylinder (D = 0.04 m; L/D = 16) is placed in the flow past a front one (d = 0.002m; L/D = 16). They are towed beneath the free surface and the drag and lift forces are measured. The main cylinder wake pattern is visualized by an embarked CCD camera. The Reynolds number based on the maximum velocity is from 0 to 14000 and the Froude number based on the main cylinde
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Barnett, Ralph L., and Peter J. Poczynok. "Ladder Rung vs. Siderail Hand Grip Strategies." In ASME 2001 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2001. http://dx.doi.org/10.1115/imece2001/sera-24001.

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Abstract When climbers lose their foothold on fixed, straight or extension ladders, the incipient fall may be arrested by gripping either the ladder rungs or siderails. Grasping the rungs provides an interference or power grip; squeezing the siderails provides a friction grip which is the primary focus of this paper. The falling scenario begins with free fall that lasts for the duration of the simple reaction time. Free fall is then decelerated by contravening friction forces derived from hand grip forces rapidly applied to the siderails. Using hand grip/time histories for various individuals,
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Tang, Lie, Jianzhong Ruan, Robert G. Landers, and Frank Liou. "Variable Powder Flow Rate Control in Laser Metal Deposition Processes." In ASME 2008 Dynamic Systems and Control Conference. ASMEDC, 2008. http://dx.doi.org/10.1115/dscc2008-2112.

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This paper proposes a novel method, called Variable Powder Flow Rate Control (VPFRC), for the regulation of powder flow rate in laser metal deposition processes. The idea of VPFRC is to adjust the powder flow rate to maintain a uniform powder deposition per unit length even when disturbances occur (e.g., the motion system accelerates and decelerates). Dynamic models of the powder delivery system motor and the powder transport system (i.e., five–meter pipe, powder dispenser, and cladding head) are constructed. A general tracking controller is then designed to track variable powder flow rate ref
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Tarasevich, Vladimir, Evgeny Podryabinkin, Oleg Bocharov, and Roland May. "Modelling of Pressure Fluctuations in a Wellbore While Tripping." In ASME 2015 34th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/omae2015-41370.

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Assembling or dismantling drillstring sections during tripping operations results in a periodically accelerated or decelerated motion of the drillstring in the borehole. While running in or pulling out of hole the drillstring induces a flow of displaced fluid and a pressure change in the borehole. These pressure changes can be divided into two components: First, the “steady” pressure change associated with the mud viscous friction; and second, the pressure fluctuations caused by induced acceleration of the drilling fluid. Pressure surges are especially dangerous for the uncased well sections a
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STEEVES, EARL. "Analysis of decelerators in motion using computational fluid dynamics." In 10th Aerodynamic Decelerator Conference. American Institute of Aeronautics and Astronautics, 1989. http://dx.doi.org/10.2514/6.1989-931.

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