Academic literature on the topic 'Acceleration'

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Journal articles on the topic "Acceleration"

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Rosi, Giuseppe A., and David E. Rival. "Entrainment and topology of accelerating shear layers." Journal of Fluid Mechanics 811 (December 6, 2016): 37–50. http://dx.doi.org/10.1017/jfm.2016.716.

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A constantly accelerating circular plate was investigated towards understanding the effect of non-stationarity on shear-layer entrainment and topology. Dye visualizations and time-resolved particle image velocimetry measurements were collected for normalized accelerations spanning three orders of magnitude. Increasing acceleration acts to organize shear-layer topology. Specifically, the Kelvin–Helmholtz instabilities within the shear layer better adhered to a circular path and exhibited consistent and repeatable spacing. Normalized starting-vortex circulation was observed to collapse with increasing acceleration, which one might not expect due to increased levels of mixing at higher instantaneous Reynolds numbers. The entrainment rate was shown to increase nonlinearly with increasing acceleration. This was attributed to closer spacing between instabilities, which better facilitates the roll-up of fluid between the shear layer and vortex core. The shear-layer organization observed at higher accelerations was associated with smaller spacings between instabilities. Specifically, analogous point-vortex simulations demonstrated that decreasing the spacing between instabilities acts to localize and dampen perturbations within an accelerating shear layer.
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Ashanina, I. A., Yu D. Kluchevskaia, S. M. Polozov, and V. I. Rashchikovd. "Optimization of electrodynamic characteristics of the linear electron accelerator at an energy 8–50 MeV with injection from an electron source based on cluster plasma systems." Seriya 3: Fizika, Astronomiya, no. 1_2023 (June 2, 2023): 2310402–1. http://dx.doi.org/10.55959/msu0579-9392.78.2310402.

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One of the key problems of contemporary accelerator physics has been an increase of the rate of the energy gain in linear electron accelerators. The physical limits of the accelerating field intensity for the normal and superconducting accelerating structures have been practically reached; therefore, new acceleration schemes are being considered, primarily acceleration in plasma and wakefield acceleration. It is suggested to consider an opportunity using of a bunch generated in a laser-plasma channel for injection into a traditional metal structure. It has been shown that an electron source based on a cluster plasma can generate a short (from 0.1 to 1.0 ps) electron bunch with an energy of several hundred keV, which makes it possible to consider such a source as an alternative to a photocathode. Next, the beam must be captured in the acceleration mode and accelerated up to an energy of 50 MeV with the possibility of energy tuning. The features of such accelerator, the features of the electron bunch capturing in the acceleration mode, and the possible values of the energy spectrum in such a system will considered. The features of such a source, including the possible energy spectrum, the features of the electron bunch capturing with an extremely wide spectrum in the acceleration mode, as well as the electrodynamic characteristics of the accelerating structures are considered in the paper. The beam dynamics simulation was carried out using the BEAMDULAC package developed at the Department of Electrophysical Facilities of the National Research Nuclear University MEPhI. The main results of the optimization of electrodynamic characteristics of the accelerating structures was also reported.
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Ashanin, Ilya A., Yulia D. Kluchevskaia, Sergey M. Polozov, and Vladimir I. Rashchikov. "Linear electron accelerator for energy 8-50 MeV with injection from an electron source based on cluster plasma systems." Vestnik of Saint Petersburg University. Applied Mathematics. Computer Science. Control Processes 18, no. 4 (2022): 443–86. http://dx.doi.org/10.21638/11401/spbu10.2022.403.

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For many years, one of the key problems of modern accelerator physics has been an increase of the rate of the energy gain in RF linear electron accelerators. The physical limits of the accelerating field intensity for metallic accelerating structures have been practically reached; therefore, new acceleration schemes are being considered, primarily acceleration in plasma and wakefield acceleration. The second aim is the generation of ultrashort (100 fs and less) electron bunches, for which RF photoguns are traditionally used. In this case, for RF photoguns, a serious problem that limits the intensity of electrons in a bunch is the influence of the own space charge during emission and acceleration in the near-cathode region, where the beam is weakly relativistic and the influence of the space charge on its dynamics plays the determinative role. The possibility of using a plasma cathode source as an injector for RF accelerator will considered. In the future, this may make it possible to bypass the limitations inherent in RF photoguns (sufficient influence of the space charge on the beam dynamics in the near-cathode region) and acceleration in the laser-plasma channel (low electron capture coefficient in the acceleration mode, wide energy spectrum - 10% or more at energies of tens and hundreds of megaelectrons). It is proposed to develop a combined accelerator in which a bunch generated in a laser-plasma channel is injected into a traditional metal structure. It is supposed that could be possible to generate a short (from 0.1 to 1.0 ps) electron bunches with an energy of several hundred kiloelectrons, which will make it possible to consider such source as an alternative to the photocathode. Next, the beam must be captured in the acceleration mode in a normally conducting section and accelerated to an energy of 50 MeV with the possibility of energy tuning. The features of such accelerator, the features of the electron bunch capturing in the acceleration mode, and the possible values of the energy spectrum in such a system will considered.
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Golovanov, A. A., E. N. Nerush, and I. Yu Kostyukov. "Radiation reaction-dominated regime of wakefield acceleration." New Journal of Physics 24, no. 3 (March 1, 2022): 033011. http://dx.doi.org/10.1088/1367-2630/ac53b9.

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Abstract We study electron acceleration in a plasma wakefield under the influence of the radiation-reaction force caused by the transverse betatron oscillations of the electron in the wakefield. Both the classical and the strong quantum-electrodynamic (QED) limits of the continuous radiation reaction are considered. For the constant accelerating force, we show that the amplitude of the oscillations of the QED parameter χ in the radiation-dominated regime reaches an equilibrium value determined only by the magnitude of the accelerating field, while the averaged over betatron oscillations radiation reaction force saturates at a value smaller than the accelerating force and thus is incapable of stopping acceleration. We find the parameters of the electron bunch and the plasma accelerator for which reaching such a regime is possible. We also study effects of the dephasing and the corresponding change of the accelerating force over the course of acceleration and conclude that the radiation-dominated regime is realized both in cases of single-stage acceleration with slow dephasing (usually corresponding to bunch-driven plasma accelerators) and multi-stage acceleration with fast dephasing (corresponding to the use of laser-driven accelerators).
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Łagowski, P., T. Stańczyk, E. Szumska, A. Zuska, P. Grabski, M. Jaśkiewicz, R. Jurecki, and D. Kurczyński. "Influence of road conditions on the values of longitudinal acceleration during braking of a tourist coach." IOP Conference Series: Materials Science and Engineering 1247, no. 1 (July 1, 2022): 012004. http://dx.doi.org/10.1088/1757-899x/1247/1/012004.

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Abstract The paper aims to analyse the longitudinal acceleration of a tourist coach on various road pavements. As part of the experimental research, braking tests were carried out at a speed of 30 km/h and acceleration to a speed of 30 km/h. The tests were carried out on four types of pavement, i.e. dry and wet asphalt and dry and wet concrete. The article describes the impact of road conditions on the braking and acceleration performance on selected road pavement types. To increase the reliability of the test results, ten tests were carried out for each tested pavement. Based on the test results, graphs of braking decelerations and accelerations during accelerating the vehicle as a function of time. This allowed for statistical analysis of the recorded decelerations and accelerations.
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FEOLI, ANTONIO. "MAXIMAL ACCELERATION OR MAXIMAL ACCELERATIONS?" International Journal of Modern Physics D 12, no. 02 (February 2003): 271–79. http://dx.doi.org/10.1142/s0218271803002706.

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Long, Gary. "Acceleration Characteristics of Starting Vehicles." Transportation Research Record: Journal of the Transportation Research Board 1737, no. 1 (January 2000): 58–70. http://dx.doi.org/10.3141/1737-08.

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Acceleration characteristics of starting vehicles are needed for many transportation analysis and design purposes involving driveways, turning bays, intersecting streets, traffic signals, railroad crossings, simulation software, and so forth. Constant acceleration is sometimes assumed, or AASHTO Green Book values based on piecewise-constant accelerations are sometimes adopted. However, continuing research has shown that linearly decreasing acceleration rates better represent both maximum vehicle acceleration capabilities and actual motorist behavior. It is not acceleration that usually is constant during speed changes; it is the rate of change in acceleration. The evolution of AASHTO acceleration values for design is traced, and the literature is reviewed for pertinent field observations. Linearly decreasing acceleration (and some deceleration) model parameters are calibrated for various sets of observational and design data. Despite published results from thousands of field measurements, the values selected for design were found to be based mostly on vehicle performance capabilities, with conjecture about how many of these capabilities are normally used by drivers. Design accelerations were found to deviate substantially from observed accelerations. At the start of motion, observed accelerations were about 15 percent faster for passenger cars and 45 percent faster for SU (single unit) trucks than design accelerations. As speed increased, observed accelerations dropped three to four times faster than design accelerations for these vehicles. Observed accelerations for WB-15 trucks began 40 percent to 75 percent slower than design accelerations, and they were considerably slower than the values in the Green Book for trucks at railroad crossings. Voids in the available information base are identified. Linearly decreasing design acceleration rates for motorists operating different classes of vehicles in different design situations are recommended, and revisions for Green Book parameters and charts are suggested. The recommended acceleration model greatly simplifies acceleration parameters but implies using different acceleration relationships for different design speeds instead of one for all.
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Konstantinov, Stanislav. "Linear acceleration of protons on a backward wave (Bogomolov’s accelerator)." Physics & Astronomy International Journal 6, no. 3 (2022): 105–7. http://dx.doi.org/10.15406/paij.2022.06.00261.

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The article proposes to consider fundamentally new way of accelerating charged particles: linear acceleration (LA) of protons on a backward wave (Professor Bogomolov's Accelerator). The article discusses the advantages and scope of the new accelerator. The European Strategic Group (ESG) is considering fundamentally new projects to create more efficient and less expensive accelerators and colliders for research.
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Cui, Jian, Satoshi Iwase, Tadaaki Mano, Naomi Katayama, and Shigeo Mori. "Muscle sympathetic outflow during horizontal linear acceleration in humans." American Journal of Physiology-Regulatory, Integrative and Comparative Physiology 281, no. 2 (August 1, 2001): R625—R634. http://dx.doi.org/10.1152/ajpregu.2001.281.2.r625.

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To elucidate the effects of linear acceleration on muscle sympathetic nerve activity (MSNA) in humans, 16 healthy men were tested in a linear accelerator. Measurements of MSNA, electrocardiogram, blood pressure, and thoracic impedance were undertaken during linear acceleration. Sinusoidal linear acceleration with peak values at ±0.10, ±0.15, and ±0.20 G was applied in anteroposterior (±Gx, n = 10) or lateral (±Gy, n = 6) directions. The total activity and burst rate of MSNA decreased significantly during forward, backward, left, or right linear accelerations. The total activity of MSNA decreased to 50.5 ± 6.9, 52.5 ± 4.4, 71.2 ± 9.6, and 67.6 ± 8.2% from the baselines (100%) during linear accelerations with peak values at ±0.20 G in the four directions, respectively. These results suggest that dynamic stimulation of otolith organs in horizontal directions in humans might inhibit MSNA directly in order to quickly redistribute blood to muscles during postural reflexes induced by passive movement, which supports the concept that the vestibular system contributes to sympathetic regulation in humans.
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DaSilva, Carlos M., and Jonas Gabrielsson. "Entrepreneurial Acceleration: Exploring Accelerator Programs." Academy of Management Proceedings 2018, no. 1 (August 2018): 12509. http://dx.doi.org/10.5465/ambpp.2018.12509abstract.

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Dissertations / Theses on the topic "Acceleration"

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Morrison, John T. "Selective Deuteron Acceleration using Target Normal Sheath Acceleration." The Ohio State University, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=osu1365523293.

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Borgström, Fredrik. "Acceleration of FreeRTOS withSierra RTOS accelerator : Implementation of a FreeRTOS software layer onSierra RTOS accelerator." Thesis, KTH, Data- och elektroteknik, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-188518.

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Today, the effect of the most common ways to improve the performance of embedded systems and real-time operating systems is stagnating. Therefore it is interesting to examine new ways to push the performance boundaries of embedded systems and real-time operating systems even further. It has previously been demonstrated that the hardware-based real-time operating system, Sierra, has better performance than the software-based real-time operating system, FreeRTOS. These real-time operating systems have also been shown to be similar in many aspects, which mean that it is possible for Sierra to accelerate FreeRTOS. In this thesis an implementation of such acceleration has been carried out. Because existing real-time operating systems are constantly in development combined with that it was several years since an earlier comparison between the two real-time operating systems was per-formed, FreeRTOS and Sierra were compared in terms of functionality and architecture also in this thesis. This comparison showed that FreeRTOS and Sierra share the most fundamental functions of a real-time operating system, and thus can be accelerated by Sierra, but that FreeRTOS also has a number of exclusive functions to facilitate the use of that real-time operating system. The infor-mation obtained by this comparison was the very essence of how the acceleration would be imple-mented. After a number of performance tests it could be concluded that all of the implemented functions, with the exception of a few, had shorter execution time than the corresponding functions in the original version of FreeRTOS.
Idag är effekten av de vanligaste åtgärderna för att förbättra prestandan av inbyggda system och realtidsoperativsystem väldigt liten. På grund av detta är det intressant att undersöka nya åtgärder för att tänja prestandagränserna av inbyggda system och realtidsoperativsystem ytterliggare. Det har tidigare påvisats att det hårdvarubaseraderealtidsoperativsystemet, Sierra, har bättre prestanda än det mjukvarubaseraderealtidsoperativsystemet, FreeRTOS. Dessa realtidsoperativsystem har även visats vara lika i flera aspekter, vilket betyder att det är möjligt för Sierra att accelererera FreeRTOS. I detta examensarbete har en implementering av en sådan acceleration genomförts. Eftersom befintliga realtidsoperativsystem ständigtär i utveckling i kombination med att det är flera år sedan som en tidigare jämförelse mellan de båda systemen utfördes, så jämfördes FreeRTOS och Sierra i fråga om funktionalitet och uppbyggnad även i detta examensarbete.Denna jämförelse visade att FreeRTOS och Sierra delar de mest grundläggande funktionerna av ett realtidsoperativsystem, och som därmed kan accelereras av Sierra, men att FreeRTOS även har ett antal exklusiva funktioner för att underlätta användningen av det realtidsoperativsystemet. Informationen som erhölls av denna jämförelse var sedan grunden för hur själva accelerationen skulle implementeras. Efter ett antal prestandatesterkunde det konstateras att alla implementerade funktioner, med undantag för ett fåtal, hade kortare exekveringstid än motsvarande funktioner i ursprungsversionen av FreeRTOS.
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Laidler, Christopher. "GPU acceleration of the frequency domain acceleration search for binary pulsars." Doctoral thesis, Faculty of Science, 2021. http://hdl.handle.net/11427/33752.

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Graphics processing units (GPUs) have been used to accelerate computation in a broad range of fields; this work presents a GPU-accelerated search for pulsars. Pulsars are highly magnetised neutron stars with extremely stable rotational periods. These periods can be accurately measured, which makes them exceptionally powerful reference tools in the field of astrophysics. Pulsars have very weak emissions, making them difficult to find. Most pulsars are found in large-scale surveys, which generate a large amount of data, and require extensive data processing. This work describes a GPU-based solution, with implications for real-time processing of pulsar search data. Pulsar astronomy uses radio telescope observations with high spectral and temporal resolution, which produce very large data sets and require intensive Digital Signal Processing. Large-scale pulsar surveys using next-generation radio telescopes such as the Square Kilometre Array (SKA), will have to be performed in real time as the volumes of raw data produced will be too large to be stored for an extended period. These computational requirements are compounded when searching for binary pulsars as their orbital motion makes them difficult to detect using classic periodicity searches. However, these rare pulsars are of great interest to physicists, as they allow us to test general relativity. Acceleration searches are the most common technique for detecting signals from binary pulsars that may be missed by standard search techniques. One of these, the frequency domain acceleration search (FDAS), mitigates the effect of orbital acceleration by correlating a matched template with the spectrum of a signal. This method has been shown to be more efficient than the alternative time domain acceleration search (TDAS)s. Even so, it is extremely computationally intensive to perform on a large scale. The existing implementation, Accelsearch, is run on a central processing unit (CPU), which limits its performance. We address this problem by creating a GPU port of the FDAS. An analysis of the fundamental calculations on which the FDAS is based informs the design of a fully asynchronous pipeline that exploits multiple levels of parallelism. This entails developing a novel technique for calculating Fresnel integrals, which increases the speed and numerical accuracy of the calculations, in both single- and double-precision. Furthermore, we develop a new estimate which improves the numerical accuracy of filter coefficients for accelerations close to zero. The GPU-accelerated pipeline achieves speeds 30 to 70 times faster than the existing serial CPU implementation. Our results clearly show that GPU acceleration is effective at reducing the cost of processing the FDAS component, to the point at which the SKA1-mid survey data could be searched in real time using 340 to 675 desktop GPUs from the Pascal generation.
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Roskell, Melanie. "Head acceleration during balance." Thesis, University of British Columbia, 2008. http://hdl.handle.net/2429/5750.

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The overall purpose of this thesis was to study the angular and linear accelerations that occur at the head during quiet standing in healthy humans. To date, there were few descriptions of linear head accelerations in quiet standing, and no focus on angular head accelerations. The contribution of the vestibular system to standing balance can be better understood from recognizing these, the stimuli that the system experiences during the task. Head accelerations were measured under four manipulations of sensory condition, and RMS and median frequency values were reported for linear and angular head accelerations in Reid’s planes. Coherence was also calculated between force plate forces and head accelerations, and between lower leg EMG and angular head accelerations in the directions of the semi-circular canals. This study considered two factors in the manipulation of quiet standing sway: vision (eyes open/closed) and surface (hard/compliant foam). The results show that angular head accelerations are repeatable under full sensory conditions, and that angular head acceleration RMS is above known vestibular thresholds in all tested sensory conditions. Linear head acceleration absolute maximum and RMS values matched previous reports under similar conditions. Significant coherence was found below 7Hz in both coherence analyses, likely due to the mechanical linkage. This coherence also showed defined troughs in varying regions, which were attributed to the interference of active systems (visual, somatosensory and vestibular) on the mechanical propagation of forces. The results also reinforced that the inverted pendulum model is valid in quiet standing on a hard surface in the sagittal and frontal planes. This study shows that the vestibular system is able to detect sway at the head during quiet standing under all four sensory conditions tested. Consequently, the vestibular system may play a range of roles in quiet standing, which may change as its relative importance in balance increases. The measurement of head accelerations is confirmed as a useful technique in studying balance in quietly standing humans.
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Neutze, Richard. "Acceleration and optical interferometry." Thesis, University of Canterbury. Physics, 1995. http://hdl.handle.net/10092/6569.

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The influence of acceleration on a number of physical systems is examined. We present a full relativistic treatment of a simple harmonic oscillator with relativistic velocities. The line element for Schwarzschild geometry is expanded in a set of Cartesian coordinates and is shown to be locally equivalent (neglecting curvature) to the line element of a linearly accelerating frame of reference. We consider the rate of a linearly accelerating quantum mechanical clock and the measurement of frequency by non-inertial observers, requiring this measurement to be of finite duration. These analyses demonstrate the standard measurement hypothesis for accelerating observers only approximates the physical behaviour of these systems. We derive the output of an optical ring interferometer in a variety of experimental contexts. A full relativistic reanalysis of the modified Laub drag experiment of Sanders and Ezekiel is performed, correcting a number of errors in their work and giving an overall discrepancy between experiment and theory of 1300 ppm. We examine the behaviour of a ring interferometer containing an accelerating glass sample. Our analysis predicts sideband structure will arise when a glass sample is oscillated along one arm of a Mach-Zehnder interferometer and the resulting output Fourier analysed. We also predict a resonant cavity containing a linearly accelerating glass sample will display optical ringing. A rigorous analysis of a ring interferometer with angular acceleration is presented. This predicts a resonant cavity with angular acceleration will also display optical ringing and demonstrates the beat frequency in a ring laser with angular acceleration is the instantaneous Sagnac beat frequency. Finally, we analyse the optical output of a rotating ring laser with one mirror oscillating, predicting sideband structure in spectra obtained from Fourier analysis of the beat between the opposite beams, and the beat between adjacent modes when the laser has multimode operation.
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Sanbar, Rania. "AutoSampler : Life Acceleration Test." Thesis, Högskolan i Halmstad, Sektionen för Informationsvetenskap, Data– och Elektroteknik (IDE), 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-25678.

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FOSS wants to offer a reliable robust new generation of Infratec analytical instrument (called Prototype model) to its customers because reliability and robustness is a very important issue for FOSS reputation. Therefore a lifetime test is necessaryto be done on the new sample handling system to avoid any problem out in the field.The main objective of this thesis is to construct a robustand stablemechanical AutoSampler; thedeveloped”AutoSampler”will subject the new generation of Infratec analytical instrument toaLife Acceleration test(LAT). The test is to highlight; the weak parts of the Prototype model, designmargin, robustness, reliability leveland to find potential weaknesses in the design at an early stage in the development phase,where changes can be done at low costs. Failure causes will be inspected, modificationimplemented and tested again. The LATtobe performed on at least threePrototype modelsfor 700,000 cycles which correspond to that the instrument is being used during 7 years. If thenew Prototypemodelfulfil the requested time, that will be great otherwisewe will learn something newand FOSS will come out with a better developed construction.This work resulted in a robust mechanical construction performing Life Acceleration Test on the Prototype model of a new generation of Infratecwhere three concepts of LAT mechanism were suggested: Elevator, Conveyors and Screw concept. A table of comparison concerning price, robustness cons and pros was made. Out of which the Screw concept was approved. The concept was then developed to a finished mechanism that was tested to assure its stabilityand reliability in performance. Technically AutoSampler fulfilled all the needed requirements. Results showed that AutoSampler is a good robust solution to perform LAT on Prototype model. LAT started on Prototype model which resulted in different findings and development. Even though many errors appeared at the beginning of the test the overall functionality of the Prototype was satisfactory. The analyses results were stable within the normal designed range. This report coversthe LAT test done from the 17thof March to 30thof April, 2014. But today June 1stand after the last modifications were implemented the AutoSampler did over 20000 cycle with few interruption which shows a satisfactory results in Prototype performance. Thanks to the detected failures thatresulted to a better robust design
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Gudmundson, Stephan. "TRANSPARENT SATELLITE BANDWIDTH ACCELERATION." International Foundation for Telemetering, 2003. http://hdl.handle.net/10150/606743.

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International Telemetering Conference Proceedings / October 20-23, 2003 / Riviera Hotel and Convention Center, Las Vegas, Nevada
While the transition to IP internetworking in space-based applications has a tremendous upside, there are significant challenges of communications efficiency and compatibility to overcome. This paper describes a very high efficiency, low-risk, incremental architecture for migrating to IP internetworking based on the use of proxies. In addition to impressive gains in communications bandwidth, the architecture provides encapsulation of potentially volatile decisions such as particular vendors and network technologies. The specific benchmarking architecture is a NetAcquire Corporation COTS telemetry system that includes built-in TCP-Tranquility (also known as SCPS-TP) and Reed-Solomon Forward Error Correction capabilities as well as a specialized proxy-capable network stack. Depending on network conditions, we will show that the effective bandwidth for satellite transmissions can be increased as much as a factor of one hundred with no external changes to existing internetworking equipment.
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Charalambous, Georgios. "TEACHERS IN THE ERA OF ACCELERATION : How the acceleration of ICT developments influences the ICT use by teachers at school." Thesis, Linköpings universitet, Pedagogik och vuxnas lärande, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-130804.

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In the effort to examine the factors that impact the use of ICT by teachers, research has up until now neglected the acceleration of ICT developments as a factor that affects the successful integration of ICT in education. The technological acceleration in general has triggered significant changes at the social level, such as the acceleration of social change and the acceleration of the pace of life. This is why the study of the acceleration of ICT provides for a good theoretical framework to study the teachers and their interaction with ICT in a broader context, one that engages the environment in which a teacher functions as a teacher and a learner. This study explores the role of the acceleration of ICT as a factor that affects the use of ICT by teachers in Cyprus secondary schools. The Social Acceleration (SA) theory is used to interpret the whole situation. After examining how teachers perceive the ICT acceleration, how it affects them at school and personally as lifelong learners the results showed that ICT acceleration is not a significant factor in the use of ICT by teachers at schools in Cyprus but it still affects teachers indirectly as lifelong learners. I argue that the teachers have established a superficial relation to technology that has to do with a short-sighted vision of ICT integration which also the Ministry of Education shares. I propose that serious decisions should be made at a policy level in order to make a conscious adoption of technology, not necessarily running behind the accelerated ICT developments but exploiting the potential of ICT according to the needs of the educational system.
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Williams, Justin A. "Analytical and Experimental Investigation of Time-Variant Acceleration Fields." Wright State University / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=wright1567258549794284.

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Popp, Antonia. "Dynamics of electron-acceleration in laser-driven wakefields: Acceleration limits and asymmetric plasma waves." Diss., lmu, 2011. http://nbn-resolving.de/urn:nbn:de:bvb:19-138159.

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Books on the topic "Acceleration"

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Roberts, Peter W., and Saurabh A. Lall. Observing Acceleration. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-00042-4.

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MacLean, Glynne. Extreme acceleration. Orlando, Florida: Rigby, 2013.

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Abbasimoshaei, Alireza. Acceleration Analysis. Singapore: Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-97-1415-5.

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Taibei shuang nian zhan (10th 2014 Taibei Shi li mei shu guan). The great acceleration. Edited by Bourriaud Nicolas compiler, Taibei Shi li mei shu guan, Taibei shuang nian zhan (10th : 2014 : Taibei Shi li mei shu guan), Taibei shuang nian zhan (10th : 2014 : Taibei Shi li mei shu guan), and Taibei shuang nian zhan (10th : 2014 : Taibei Shi li mei shu guan). Taipei: Taipei Fine Arts Museum, 2015.

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University of Exeter. Centre for Innovation in Mathematics Teaching, ed. Speed and acceleration. Exeter: Centre for Innovation in Mathematics Teaching, 1989.

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Somervill, Barbara A. Speed and acceleration. Chicago, Ill: Heinemann Library, 2010.

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Somervill, Barbara A. Speed and acceleration. Chicago, Ill: Heinemann Library, 2011.

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Spilsbury, Richard. Speed and acceleration. Oxford: Heinemann Library, 2007.

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Schmid, Karl. Laser Wakefield Electron Acceleration. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-19950-9.

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Plyshevskiĭ, B. P. Intensifying production: Acceleration factors. Moscow: Progress, 1987.

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Book chapters on the topic "Acceleration"

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Blackburn, James A. "Acceleration." In Modern Instrumentation for Scientists and Engineers, 221–35. New York, NY: Springer New York, 2001. http://dx.doi.org/10.1007/978-1-4613-0103-5_15.

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Böning, Dieter, Michael I. Lindinger, Damian M. Bailey, Istvan Berczi, Kameljit Kalsi, José González-Alonso, David J. Dyck, et al. "Acceleration." In Encyclopedia of Exercise Medicine in Health and Disease, 1. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-540-29807-6_2002.

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Gooch, Jan W. "Acceleration." In Encyclopedic Dictionary of Polymers, 7. New York, NY: Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_83.

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Assouline, Susan, and Ann Lupkowski-Shoplik. "Acceleration." In Introduction to Gifted Education, 227–41. 2nd ed. New York: Routledge, 2022. http://dx.doi.org/10.4324/9781003235866-18.

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Weiss, Alan, and Gene Moran. "Acceleration." In Million Dollar Influence, 79–88. New York: Productivity Press, 2022. http://dx.doi.org/10.4324/9781003320388-8.

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Robinson, Ann, Bruce M. Shore, and Donna L. Enersen. "Acceleration." In Best Practices In Gifted Education, 223–34. New York: Routledge, 2021. http://dx.doi.org/10.4324/9781003233244-29.

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Assouline, Susan, and Ann Lupkowski-Shoplik. "Acceleration." In Introduction to Gifted Education, 237–52. New York: Routledge, 2021. http://dx.doi.org/10.4324/9781003235859-18.

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Peters, Scott J., Michael S. Matthews, Matthew T. McBee, and D. Betsy McCoach. "Acceleration." In Beyond Gifted Education, 85–104. New York: Routledge, 2021. http://dx.doi.org/10.4324/9781003233299-5.

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Behrens, Wendy A., and Ann Lupkowski-Shoplik. "Acceleration." In Methods & Materials for Teaching the Gifted, 231–57. 5th ed. New York: Routledge, 2021. http://dx.doi.org/10.4324/9781003236610-17.

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Roberts, Julia Link, and Julia Roberts Boggess. "Acceleration." In Teacher's Survival Guide, 87–93. 2nd ed. New York: Routledge, 2021. http://dx.doi.org/10.4324/9781003238553-10.

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Conference papers on the topic "Acceleration"

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Sarkar, Rishov, and Cong Hao. "From Acceleration to Accelerating Acceleration: Modernizing the Accelerator Landscape using High-Level Synthesis." In 2023 IEEE 31st Annual International Symposium on Field-Programmable Custom Computing Machines (FCCM). IEEE, 2023. http://dx.doi.org/10.1109/fccm57271.2023.00059.

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Sasoh, A., Y. Hamate, G. Utsunomiya, and K. Takayama. "High acceleration ram accelerator operation." In 35th Joint Propulsion Conference and Exhibit. Reston, Virigina: American Institute of Aeronautics and Astronautics, 1999. http://dx.doi.org/10.2514/6.1999-2262.

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Lagrange, JB, T. Planche, Y. Mori, B. S. Acharya, Maury Goodman, and Naba K. Mondal. "Scaling FFAG accelerator for muon acceleration." In 12TH INTERNATIONAL WORKSHOP ON NEUTRINO FACTORIES, SUPERBEAMS, AND BETABEAMS: NuFact10. AIP, 2011. http://dx.doi.org/10.1063/1.3644321.

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Lee, Gunhee, Hanmin Park, Soojung Ryu, and Hyuk-Jae Lee. "Acceleration of DNN Training Regularization: Dropout Accelerator." In 2020 International Conference on Electronics, Information, and Communication (ICEIC). IEEE, 2020. http://dx.doi.org/10.1109/iceic49074.2020.9051194.

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Chen, K. W., and S. H. Kim. "Wake-Field Acceleration And Compact Accelerator Considerations." In 1988 Los Angeles Symposium--O-E/LASE '88, edited by Norman Rostoker. SPIE, 1988. http://dx.doi.org/10.1117/12.965098.

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Martínez, José María Rico, and Joseph Duffy. "An Efficient Inverse Acceleration Analysis of In-Parallel Manipulators." In ASME 1996 Design Engineering Technical Conferences and Computers in Engineering Conference. American Society of Mechanical Engineers, 1996. http://dx.doi.org/10.1115/96-detc/mech-1005.

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Abstract A very simple novel expression for the accelerations of the six prismatic actuators, of the HPS connector chains, of a 6 degree of freedom in-parallel manipulator is derived. The expression is obtained by firstly computing the “accelerator” for a single HPS connector chain in terms of the joint velocities and accelerations. The accelerator is a function of the line coordinates of the joint axes and of a sequence of Lie products of the same line coordinates. A simple expression for the acceleration of the prismatic actuator is obtained by forming the Klein form, or reciprocal product, with the accelerator and the coordinates of the line of the connector chain. Since the Klein form is invariant, the resulting expression can be applied directly to the six HPS connector chains of an in-parallel manipulator. The authors believe that this simple method has important applications in the dynamics and control of these in-parallel manipulators where the computing time must be minimized to improve the behavior of parallel manipulators.
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Railsback, Ben T., and Richard M. Ziernicki. "Stand-Up Forklift Acceleration." In ASME 2010 International Mechanical Engineering Congress and Exposition. ASMEDC, 2010. http://dx.doi.org/10.1115/imece2010-38940.

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This paper will examine the accelerations present during the operation of stand-up forklifts. Forklifts, or powered industrial trucks, are typically operated from 1 of 2 postures. Forklifts are either operated from a seated posture or a standing posture. Previous research has focused on the threshold of acceleration at which a standing forklift operator will be unable to maintain postural stability, but did not detail peak and average accelerations generated by forklifts during typical turning maneuvers. This paper will detail the accelerations generated by stand-up forklifts during typical operation from a theoretical examination of vehicle dynamics and present experimental data acquired during stand-up forklift testing. This paper will further examine performance required by consensus and industry standards, industry practice and the safety implications of stand-up forklift acceleration. The record of serious lower leg injury associated with stand-up forklifts, reports of ejection or loss of balance from the operator and data regarding acceleration present in the operator compartment support the use of a door for stand-up forklifts.
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Jazar, Reza N., A. Khazaei, and M. Mahinfalah. "Razi Acceleration in Kinematics." In ASME 2011 International Mechanical Engineering Congress and Exposition. ASMEDC, 2011. http://dx.doi.org/10.1115/imece2011-63007.

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The time derivative of vectors depends on the coordinate frame in which the vector is expresses and the coordinate frame in which the derivative is taken. By redefining and expanding the Euler’s derivative transformation formula, we introduce the general theory of derivative and coordinate frames using a proper notation method. Introducing three coordinate frames, we show that the Coriolis acceleration is actually the addition of two different accelerations. Furthermore, a new acceleration term appears that we call it Razi acceleration.
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Mohamed, Maher G. "Acceleration Analysis of Platform-Type Manipulators." In ASME 1996 Design Engineering Technical Conferences and Computers in Engineering Conference. American Society of Mechanical Engineers, 1996. http://dx.doi.org/10.1115/96-detc/mech-1013.

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Abstract The screw algebra is used to efficiently derive expressions in compact form for both the angular accelerations of the moving links and the linear accelerations of points on the links of platform-type manipulators. The analysis employs the property that the acceleration state of the manipulator platform can be determined by considering the acceleration states of the links of only one — any one — of the manipulator legs. The obtained expressions provide an ease in symbolic and algebraic manipulation. The analysis is then extended to specify the acceleration center point of ithe nstantaneous motion of the manipulator platform. The acceleration center point is then used in expressing the distribution of the acceleration field of the platform instant motion which is important in manipulator synthesis. The special case of planar manipulators is studied and simpler expressions are derived. Numerical examples are presented for the analysis of a 3-DOF planar platform-type and of a 6-DOF spatial “Stewart Platform” manipulators to illustrate the analysis procedure.
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Piot, Philippe, G. Chen, E. Frame, C. Jing, S. Kuzikov, and J. G. Power. "A Compact Short-Wavelength Free-Electron Laser driven by a Two-Beam Acceleration Scheme." In Compact EUV & X-ray Light Sources. Washington, D.C.: Optica Publishing Group, 2024. http://dx.doi.org/10.1364/euvxray.2024.etu3a.5.

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Particle accelerators based on a two-beam acceleration scheme offer a path to high-accelerating fields by p owering the a ccelerating structures using s hort (nanosecond) radiofrequency pulses. In this contribution, we discuss a compact X-ray free-electron laser (FEL) concept based on a ∼ 0.5 GeV accelerator. We present the optimization of the accelerator and FEL process. We also discuss ongoing and planned experiments toward developing an integrated proof-of-principle experiment at Argonne National Laboratory in the vacuum and extreme ultraviolet (V/EUV) regimes.
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Reports on the topic "Acceleration"

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Fischer, Richard P., and Steven H. Gold. Multipactor Physics, Acceleration, and Breakdown in Dielectric-Loaded Accelerating Structures. Office of Scientific and Technical Information (OSTI), July 2016. http://dx.doi.org/10.2172/1288453.

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Sprangle, Philip, Eric Esarey, Jonathan Krall, and Antonio Ting. Vacuum Laser Acceleration. Fort Belvoir, VA: Defense Technical Information Center, September 1995. http://dx.doi.org/10.21236/ada298811.

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Wernick, I. K., and T. C. Marshall. Acceleration of electrons using an inverse free electron laser auto- accelerator. Office of Scientific and Technical Information (OSTI), July 1992. http://dx.doi.org/10.2172/5096041.

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Wernick, Iddo K., and Thomas C. Marshall. Acceleration of electrons using an inverse free electron laser auto- accelerator. Office of Scientific and Technical Information (OSTI), July 1992. http://dx.doi.org/10.2172/10159742.

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Nation, John A. Novel Methods of Acceleration. Fort Belvoir, VA: Defense Technical Information Center, September 1988. http://dx.doi.org/10.21236/ada204929.

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Wolfson, Johanna. Energy Innovation Acceleration Program. Office of Scientific and Technical Information (OSTI), June 2015. http://dx.doi.org/10.2172/1339454.

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Chen, P. Cosmic Plasma Wakefield Acceleration. Office of Scientific and Technical Information (OSTI), April 2004. http://dx.doi.org/10.2172/826879.

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Nation, John A. Novel Methods of Acceleration. Fort Belvoir, VA: Defense Technical Information Center, January 1993. http://dx.doi.org/10.21236/ada264828.

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Decker, Franz-Josef. STATUS OF THE PLASMA WAKEFIELD ACCELERATION EXPERIMENTAT THE STANFORD LINEAR ACCELERATOR CENTER. Office of Scientific and Technical Information (OSTI), August 2002. http://dx.doi.org/10.2172/800030.

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Farnsworth, A. V. Jr. Laser acceleration of thin flyers. Office of Scientific and Technical Information (OSTI), August 1995. http://dx.doi.org/10.2172/102212.

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