Relevant bibliographies by topics / Transmission speeds

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Transmission speeds'

Author: Grafiati
Published: 19 February 2023

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Journal articles on the topic "Transmission speeds"

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Mir-Nasiri, Nazim, and Sulaiman Hussaini. "New Intelligent Transmission Concept for Hybrid Mobile Robot Speed Control." International Journal of Advanced Robotic Systems 2, no. 3 (September 1, 2005): 27. http://dx.doi.org/10.5772/5784.

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This paper presents a new concept of a mobile robot speed control by using two degree of freedom gear transmission. The developed intelligent speed controller utilizes a gear box which comprises of epicyclic gear train with two inputs, one coupled with the engine shaft and another with the shaft of a variable speed dc motor. The net output speed is a combination of the two input speeds and is governed by the transmission ratio of the planetary gear train. This new approach eliminates the use of a torque converter which is otherwise an indispensable part of all available automatic transmissions, thereby reducing the power loss that occurs in the box during the fluid coupling. By gradually varying the speed of the dc motor a stepless transmission has been achieved. The other advantages of the developed controller are pulling over and reversing the vehicle, implemented by intelligent mixing of the dc motor and engine speeds. This approach eliminates traditional braking system in entire vehicle design. The use of two power sources, IC engine and battery driven DC motor, utilizes the modern idea of hybrid vehicles. The new mobile robot speed controller is capable of driving the vehicle even in extreme case of IC engine failure, for example, due to gas depletion.
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Kahraman, A., H. Ligata, K. Kienzle, and D. M. Zini. "A Kinematics and Power Flow Analysis Methodology for Automatic Transmission Planetary Gear Trains." Journal of Mechanical Design 126, no. 6 (November 1, 2004): 1071–81. http://dx.doi.org/10.1115/1.1814388.

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A generalized formulation for analyzing speeds and forces of the gear components of planetary automatic transmissions is proposed. The formulation is capable of analyzing any typical one-degree-of-freedom automatic transmission gear train containing any number of simple, compound or complex-compound planetary gear sets. The formulation consists of three components: a kinematic analysis formulation to compute rotational speeds of gears and carriers, a gear ratio and kinematic configuration search algorithm, and a power flow analysis formulation. The kinematics component computes rotational speeds of gears and carriers. Given the type and number of planetary gear sets, the search algorithm determines all possible kinematic configurations and gear tooth count combinations that result in a required set of gear ratios while eliminating all kinematic redundancies and unfavorable clutching sequences. The third component, the power-flow analysis formulation, performs a complete static force (power-flow) analysis to determine all gear and bearing forces and moments, and clutch and connection torque values. A five-speed transmission example is considered to highlight the capabilities of the proposed formulation.
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Prudnikov, Aleksandr Petrovich, and Anastasiya Dmitrievna Bodunova. "SLIDING SPEEDS IN PLANETARY TORUS HELICAL TRANSMISSION." Вестник Белорусско-Российского университета, no. 2 (2021): 12–19. http://dx.doi.org/10.53078/20778481_2021_2_12.

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Dong, Changbin, Wangpeng Pei, Yongping Liu, Yongqiao Wei, Dawei Li, Rui Guo, and Zhongtao Ren. "Experimental Research on Transmission Characteristics of Elliptic Gear Transmission Systems." Strojniški vestnik - Journal of Mechanical Engineering 68, no. 11 (November 29, 2022): 702–12. http://dx.doi.org/10.5545/sv-jme.2022.332.

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The special variable ratio transmission characteristics and complex tooth profile curve of elliptic gears make it difficult to analyse their transmission characteristics, which restrict the application and development of elliptical gears. Given that, a transmission characteristic analysis method based on transmission testing is proposed in this paper. By building a high-precision elliptic gear test rig, the distribution laws of dynamic lost motion, static lost motion, back clearance, stiffness, friction torque and vibration with speeds and loads are analysed and obtained. The results show that the dynamic lost motion and friction torque will increase with the increase of rotating speed. The dynamic lost motion, static lost motion and back clearance will gradually decrease with the increase of load, and the stiffness will gradually increase. Enlarging the load and reducing the speed can restrain the vibration amplitude, which can ensure the transition of the gear system from a bilateral collision state to a unilateral collision state and thus improve the stability of the system.
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Malcoci, Iulian. "Sound Reasearch in Precessional Transmission." Applied Mechanics and Materials 657 (October 2014): 584–88. http://dx.doi.org/10.4028/www.scientific.net/amm.657.584.

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Sound may be defined as any pressure variation (in air, water or other medium) that the human ear can detect. Just like dominoes, a wave motion is set off when an element sets the nearest particle of air into motion. This motion gradually spreads to adjacent air particles further away from the source. Depending on the medium, sound propagates at different speeds. In air, sound propagates at a speed of approximately 340 m/s. In liquids and solids, the propagation velocity is greater 1500 m/s in water and 5000 m/s in steel [2].
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Morley, Neil J. "Cercarial swimming performance and its potential role as a key variable of trematode transmission." Parasitology 147, no. 12 (July 14, 2020): 1369–74. http://dx.doi.org/10.1017/s0031182020001171.

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AbstractTrematode transmission in aquatic habitats from molluscan intermediate host to vertebrate or invertebrate target host is typically undertaken by a free-living stage known as cercariae. Active locomotion by cercariae is a key aspect of the transmission process with the swimming speed potentially contributing to infection success. Individual cercarial species swim at different speeds but the significance of this to infection potential has not been determined. This study, using data from the scientific literature, investigates the role of swimming speed in relation to cercarial morphology, host-searching strategies and target host species. Larger cercariae swim faster than smaller ones with tail length being the principal factor controlling locomotion rates. Different cercarial morphotypes swim at different speeds, in particular, furcocercariae, with the exception of the schistosomes, being faster swimmers than mono-tailed cercariae. Host-searching behaviour has a significant influence on swimming speeds with ‘active-searching’ strategies swimming slower than those adopting ‘active-waiting’ or ‘prey mimcry’ strategies. Vertebrate-infecting cercariae swim faster than those infecting invertebrates with species targeting fish demonstrating the highest locomotion rates and those targeting arthropods the slowest speeds. The adaptions of individual cercarial swimming speeds to biological variables and their interactions with the physical processes of aquatic habitats are discussed.
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Liu, Xiaogang, Zhaoyu Wu, Jie Lu, and Jinli Xu. "Investigation of the Effect of Rotation Speed on Vibration Responses of Transmission System." MATEC Web of Conferences 256 (2019): 02019. http://dx.doi.org/10.1051/matecconf/201925602019.

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In the operating process, it is found the vibration of main reducer reaches a maximum value when certain types of vehicles are running at a speed around 4000 RPM. However, how the rotation speed of engine affects the vibration responses to automobile transmission system has not been investigated theoretically in details. To investigate this problem, the transmission system of automobile is simplified to a drive-final shaft system in this research, and a coupled vibration model of drive-final shaft system is developed. This model is used to simulate the vibration response to transmission system at different rotation speeds. Simulation results show that the torsional vibration responses reach the maximum when the rotation speeds are 3800 RPM and 4200 RPM and the vibration responses of pinion reach the maximum value when the rotation speeds are 4000 RPM and 4200 RPM. Moreover, finite element analysis is conducted to investigate the reason for this phenomenon. It is found that the torsional vibration responses reach the maximum value when the excitation frequency of engine is close to the resonance frequency of drive shafts. This research provides an effective method to analyse the vibration characteristics of automobile transmission system.
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Butunoi, Paul Alin, Gheorghe Stan, and Lacramioara Ungureanu. "Optimization Strategies of Peripheral Speeds for Planetary Speed Reducers Used in the Actuation of Industrial Robots." Applied Mechanics and Materials 809-810 (November 2015): 712–17. http://dx.doi.org/10.4028/www.scientific.net/amm.809-810.712.

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Planetary speed reducers are used as the actuating module of the revolute joints for the industrial robots as a result of their specific advantages given by high transmission ratios, efficiencies and reliability. However, planetary speed reducers are currently used with variable high speed electric motors, which leads to increased peripheral speeds for the gears and planet carrier, leading in turn to increased noise during operation. Therefore it becomes necessary to manufacture the gears and planet carrier in an upper precision class, leading to significantly increased costs for the entire planetary transmission. Throughout this paper, novel solutions for planetary speed reducers are proposed, characterized by reduced peripheral speeds of the moving elements. For all the structural variants proposed, the summation method (Svamp’s rule) was applied in order to establish mathematical expressions for the transmission ratios. Subsequently, expressions for the peripheral speeds, corresponding to each moving element were derived, and expressed as a function of the number of revolutions of the input shaft. The method described in this paper was applied for each structural variant proposed, the results obtained being compared and analysed, leading to the optimal variant, characterized by a reduced level of noise and vibrations. Based on the mathematical expressions previously derived, a series of graphical representations of peripheral speeds as a function of the number of revolutions for the input shafts were elaborated for each structural variant proposed. At the same time, some recommendations useful for both designers and manufacturers of planetary speed reducers were made, based on the obtained results.
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Wu, Yi Chang, Pei Wun Ren, and Li An Chen. "Kinematic Analysis of an 8-Speed Bicycle Transmission Hub." Applied Mechanics and Materials 479-480 (December 2013): 234–38. http://dx.doi.org/10.4028/www.scientific.net/amm.479-480.234.

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A transmission hub is a speed changing mechanism which is an important device in the transmission system of bicycles. This paper presents the kinematic analysis of an 8-speed bicycle transmission hub by using the fundamental circuit method. First, a distributed-flow type planetary gear mechanism, which consists of two parallel-connected transmission units and one differential unit, and the corresponding clutch sequence table of an 8-speed transmission hub are introduced. Based on the fundamental circuits, four kinematic equations of the transmission hub are derived. Then, the speed ratio of each speed is formulated, which is a function of gear ratios of external and internal gear pairs. By submitting the numbers of gear teeth into these formulas, the value of speed ratio at each speed can be calculated. Finally, the power-flow diagrams at related speeds are presented to illustrate the power-flow paths of the transmission hub.
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Stefanović-Marinović, Jelena, Željko Vrcan, Sanjin Troha, and Miloš Milovančević. "Optimization of two-speed planetary gearbox with brakes on single shafts." Reports in Mechanical Engineering 3, no. 1 (December 15, 2021): 94–107. http://dx.doi.org/10.31181/rme2001280122m.

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This paper deals with configurations of complex planetary gear trains consisting of two planetary gear trains of basic type. These gear trains are formed by linking shafts from different component gearsets and contain two carriers, and therefore designated as two-carrier planetary gear trains with four external and two coupled shafts. The structural configurations are pointed out, and additional research has been made into gear trains using coupled external shafts for torque input and output, with the controlling brakes acting on single external shafts. The kinematic schemes have been created for all analyzed PGT variants, and the available transmission ratio ranges calculated for both speeds. The transmission ratio is changed by alternating the activation of each brake, enabling their use as transmissions with two transmission ratios in transportation technology and other engineering applications. Extreme transmission ratio changes have been determined for each analyzed PGT design solution. Also, relations of ideal torque ratios to the required transmission ratios of component planetary gear trains for both speeds have been calculated. These relations enable the selection of compound gear train designs which will achieve the required pair of transmission ratios. The optimal design parameters for the adopted configuration were determined, and the optimal transmission solution for the given input data selected.
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Dissertations / Theses on the topic "Transmission speeds"

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Brauer, Samuel. "High Speed Electric Vehicle Transmission : Investigation how noise vibration harshness are affected at high speeds in an electric vehicle transmission." Thesis, Karlstads universitet, Fakulteten för hälsa, natur- och teknikvetenskap (from 2013), 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-62636.

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He, Wei. "Adaptive-rate digital speech transmission." Thesis, University of Warwick, 1993. http://wrap.warwick.ac.uk/104723/.

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Dongue, Dongue Dietrich Kevin, and Lorenzo Grosso. "The Speed-Track." Thesis, KTH, Maskinkonstruktion (Inst.), 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-142612.

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The Speed-Track is a prototype of tracked vehicle made for material transportation on yards andgalleries. It was realized in 2011 and during the past two years has been employed mainly forload transportation on mountains. The main innovations adopted by the vehicle are about thesuspension system and the hydrostatic transmission; the combination of both allows acomfortable driving up to a maximum speed of 20 km/h.First of all, the present thesis aims to quantitatively evaluate the performances of the vehiclefrom the point of view of the suspension system and the transmission. The design of the vehicle,in fact, has been driven by the designer’s experience and no preliminary simulations and sizingcomputations have been performed.According to the outcomes of the first step as well as the feedback, some improvements to thecurrent configuration are designed and evaluated. The feedback has been submitted to theprototype’s users through a questionnaire. Improvements are supposed to be easily implementedon the existing vehicle.The outcomes of the previous steps as well as the communication with employees andentrepreneurs and the knowledge of the state of the art in terms of construction and earthmovingmachines drive the last step of the present work.The employees and entrepreneurs consulted mainly work in the agricultural sector and they havebeen contacted through web-based forums. In addition, the participation to the fair Bauma 2013allowed us to get a more complete picture of the state of the art.New solutions, starting from scratch, are designed in the last part.Keywords:
Speed-Track är en prototyp av en spårfarkost utvecklad för materialtransport på gårdar och igallerior. Den konstruerades 2011 och under de senaste två åren har den främst använts för tungatransporter på berg.De huvudsakliga innovationerna av vilka farkosten använder sig av är kopplade tillsuspensionssystemet och den hydrostatiska transmissionen; kombinationen av dessa möjliggören bekväm resa i hastigheter upp till 20 km/h.Målet med detta examensarbete är framför allt att utvärdera prestandan hos farkosten medhänsyn till suspensionssystemet och transmissionen. Designen av farkosten har utformats baseratpå utvecklarens erfarenheter och inga preliminära simuleringar eller beräkningar har utförts.Baserat på resultaten från, och utvärdering av det första steget har vissa förbättringar till denrådande uppbyggnaden framtagits och utvärderats. Utvärderingen har lämnats till användare avprototypen genom ett frågeformulär.Förbättringarna skall vara lätta att tillämpa på den existerande farkosten.Resultaten från de föregående stegen tillsammans med en dialog med anställda och entreprenörersamt teknisk kunskap med avseende på konstruktion och jordfraktande maskiner driva det sistasteget av det presenterade arbetet.Medarbetare och entreprenörer härstammar framför allt från arbete inom jordbrukssektorn ochhar blivit kontaktade genom web-forum.Dessutom har medverkan under mässan Bauma 2013 givit en mer komplett bild av den rådandetekniken.Nya lösningar skapade från början utvecklas i arbetets sista del.
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Liu, Tao. "Advanced Coded Modulation for High Speed Optical Transmission." Diss., The University of Arizona, 2016. http://hdl.handle.net/10150/613291.

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In the recent years, the exponential Internet traffic growth projections place enormous transmission rate demand on the underlying information infrastructure at every level, from the long haul submarine transmission to optical metro networks. In recent years, optical transmission at 100 Gb/s Ethernet date rate has been standardized by ITU-T and IEEE forums and 400Gb/s and 1Tb/s rates per DWDM channel systems has been under intensive investigation which are expected to be standardized within next couple of years.To facilitate the implementation of 400GbE and 1TbE technologies, the new advanced modulation scheme combined with advanced forward error correction code should be proposed. Instead of using traditional QAM, we prefer to use some other modulation techniques, which are more suitable for current coherent optical transmission systems and can also deal with the channel impairments. In this dissertation, we target at improving the channel capacity by designing the new modulation formats. For the first part of the dissertation, we first describe the optimal signal constellation design algorithm (OSCD), which is designed by placing constellation points onto a two dimensional space. Then, we expand the OSCD onto multidimensional space and design its corresponding mapping rule. At last, we also develop the OSCD algorithm for different channel scenario in order to make the constellation more tolerant to different channel impairments. We propose the LLR-OSCD for linear phase noise dominated channel and NL-OSCD for nonlinear phase noise dominated channel including both self-phase modulation (SPM) and cross-phase modulation (XPM) cases. For the second part of the dissertation, we target at probability shaping of the constellation sets (non-uniform signaling). In the conventional data transmission schemes, the probability of each point in a given constellation is transmitted equally likely and the number of constellation sets is set to 2!. If the points with low energy are transmitted with larger probability then the others with large energy, the non- uniform scheme can achieve higher energy efficiency. Meanwhile, this scheme may be more suitable for optical communication because the transmitted points with large probabilities, which have small energy, suffer less nonlinearity. Both the Monte Carlo simulations and experiment demonstration of both OSCD and non-uniform signaling schemes indicate that our proposed signal constellation significantly outperforms QAM, IPQ, and sphere-packing based signal constellations.
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Richardson, Lee John. "Ultra high-speed transmission using dispersion managed solitons." Thesis, Aston University, 2001. http://publications.aston.ac.uk/7999/.

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This thesis presents the results of numerical modelling of ultra high-speed transmission using DM solitons. The theory of propagation in optical fibres is presented with specific reference to optical communication systems. This theory is then expanded to incorporate dispersion-managed transmission and the dispersion managed soliton. The first part of this work focuses on ultra high-speed dispersion managed soliton propagation in short period dispersion maps. Initially, the characteristics of dispersion managed soliton propagation in short period dispersion maps are contrasted to those of the more conventional dispersion managed regime. These properties are then utilised to investigate transmission at single channel data rates of 80 Gbit/s, 160 Gbit/s and 320 Gbit/s. For all three data rates, the tolerable limits for transmission over 1000 km, 3000 km and transoceanic distances are defined. A major limitation of these higher bit rate systems arises from the problem of noise-induced interactions, which is where the accumulation of timing jitter causes neighbouring dispersion-managed solitons to interact. In addition, the systems become more sensitive to initial conditions as the data rate increases. The second part of the work focuses on contrasting the performance of a range of propagation regimes, from quasi-linear through to soliton-like propagation at 40 Gbit/s for both single channel and WDM dispersion managed transmission. The results indicated that whilst the optimal single channel performance was achieved for soliton-like propagation, the optimal WDM performance was achieved for propagation regime that lay between quasi-linear and soliton-like.
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Kroh, Marcel. "Semiconductor mode locked laser for high-speed OTDM transmission." [S.l.] : [s.n.], 2006. http://deposit.ddb.de/cgi-bin/dokserv?idn=979584817.

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Muthukkumarasamy, Vallipuram. "Data assisted equalisation for high speed digital transmission systems." Thesis, University of Cambridge, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.334181.

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Makovejs, S. "High-speed optical fibre transmission using advanced modulation formats." Thesis, University College London (University of London), 2011. http://discovery.ucl.ac.uk/1324549/.

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The rapid growth in interactive bandwidth-hungry services demands ever higher capacity at various stages of the optical network, leading to a potential capacity exhaust, termed the capacity crunch. The main aim of the research work described in this thesis was to help solve the potential capacity crunch by exploring techniques to increase the data rate, spectral efficiency and reach of optical fibre systems. The focus was on the use of advanced signal modulation formats, including optical time-division multiplexing (OTDM), quadrature phase shift keying (QPSK), and 16-state quadrature amplitude modulation (QAM16). QPSK and QAM16 modulations formats were studied in combination with coherent detection and digital signal processing (DSP) for the compensation of transmission impairments. In addition, return-to-zero (RZ) pulses were explored to increase the tolerance towards nonlinearity for coherently detected signals, and nonlinearity compensation (NLC) through the DSP. Initially, to maximise the bit-rate, research was focused on the study of OTDM transmission at 80Gbit/s with the aim to optimise the phase difference between the adjacent OTDM channels. A new technique to achieve bit-wise phase control using a phase-stabilised fibre interferometer was proposed. Faced with a limited fibre capacity, the need to maximise the spectral efficiency became paramount, and thus the need to use phase, amplitude and polarisation domains for signal transmission. In combination with coherent detection the research focused on the performance of optical fibre systems using QPSK and QAM16 modulation formats, including their generation, transmission and detection in single-channel and WDM regimes. This included the study of the impact of pulse shapes, and the mitigation of linear and nonlinear transmission impairments with receiver-based DSP at bit-rates ranging from 42.7 to 224Gbit/s. The technique demonstrated for bit-wise phase control for OTDM was successfully used to demonstrate a new method for QAM16 signal generation. Longest transmission distances (up to 10160km in 112Gbit/s QPSK, 4240km in 112Gbit/s QAM16, and 2000km in 224Gbit/s QAM16) have been achieved with the use of NLC and RZ pulses. The efficiency of these two techniques is explored through a comprehensive set of experiments in both single-channel and WDM transmission experiments. The results can be used in the design of future optical transmission systems.
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Clément, Bertier. "Linux Kernel Packet Transmission Performance in High-speed Networks." Thesis, KTH, Skolan för informations- och kommunikationsteknik (ICT), 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-191435.

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The Linux Kernel protocol stack is getting more and more additions as time goes by. As new technologies arise, more functions are implemented and might result is a certain amount of bloat. However new methods have been added to the kernel to circumvent common throughput issues and to maximize overall performances, given certain circumstances. To assess the ability of the kernel to produce packets at a given rate, we will use the pktgen tool. Pktgen is a loadable kernel module dedicated to trac generation based on UDP. Its philosophy was to be in a low position in the kernel protocol stack to minimize the amount of overhead caused by usual APIs. As measurements are usually done in packets per second instead of bandwidth, the UDP protocol makes perfect sense to minimize the amount of time creating a packet. It has several options which will be investigated, and for further insights its transmission algorithm will be analysed. But a software is not just a compiled piece of code, it is a set of instructions ran on top of hardware. And this hardware may or may not comply with the design of one's software, making the execution slower than expected or in extreme cases even not functional. This thesis aims to investigate the maximum capabilities of Linux packet transmissions in high-speed networks, e.g. 10 Gigabits or 40 Gigabits. To go deeper into the understanding of the kernel behaviour during transmission we will use proling tools, as perf and the newly adopted eBPF framework.
Linux Kernel protokollstacken blir fler och fler tillägg som tiden går. Som ny teknik uppstår, fler funktioner har genomförts och kan leda till en viss mängd svälla. Men nya metoder har lagts till kärnan för att kringgå vanliga genomströmning problem och att maximera den totala föreställningar, med tanke på vissa omständigheter. Att fastställa förmågan hos kärnan för att producera paket med en given hastighet, kommer vi att använda pktgen verktyget. Pktgen är en laddbar kärnmodul tillägnad trafik generation baserad på UDP. Dess filosofi var att vara i en låg position i kärnan protokollstacken för att minimera mängden av overhead orsakad av vanliga API:er. Som mätningarna görs vanligtvis i paket per sekund i stället för bandbredd, gör UDP-protokollet vettigt att minimera mängden tid på att skapa ett paket. Det har flera alternativ som kommer att undersökas, och för ytterligare insikter sin sändningsalgoritmen kommer att analyseras. Men en programvara är inte bara en kompilerad bit kod, är det en uppsättning instruktioner sprang ovanpå hårdvara. Och den här maskinvaran kan eller inte kan följa med utformningen av en programvara, vilket gör utförandet långsammare än väntat eller i extrema fall även fungerar inte. Denna avhandling syftar till att undersöka de maximala kapacitet Linux paketsändningar i höghastighetsnät, t.ex. 10 gigabit eller 40 Gigabit. För att gå djupare in i förståelsen av kärnan beteende under överföringen kommer vi att använda profilverktyg, som perf och det nyligen antagna ramen eBPF.
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Tyrberg, Andreas. "Data Transmission over Speech Coded Voice Channels." Thesis, Linköping University, Department of Electrical Engineering, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-6755.

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The voice channel in mobile communication systems have high priority and are almost always available. By using the voice channel also for data transmissions it is possible to get the same availability as for voice calls. But due to speech codecs in the voice channel, regular modems can not be used and special techniques are needed to transmit data.

This thesis presents methods to transmit data over the voice channel in a GSM, UMTS or TETRA network. The focus has been on robust data transmission rather than high data bit rates. Approaches are introduced which improve the reliability for transmissions even for systems with low rate speech codecs and channels with some distortion.

The results of the thesis are suggestions of symbol patterns and ways to create and adapt symbols for specific application and channel conditions to achieve the desired goal for the application.

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Books on the topic "Transmission speeds"

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Vary, Peter. Digital Speech Transmission. New York: John Wiley & Sons, Ltd., 2006.

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Weber, Hans-Georg, and Masataka Nakazawa, eds. Ultrahigh-Speed Optical Transmission Technology. Berlin, Heidelberg: Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/978-3-540-68005-5.

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Wei, He. Adaptive-rate digital speech transmission. [s.l.]: typescript, 1993.

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Martin, Rainer, Ulrich Heute, and Christiane Antweiler, eds. Advances in Digital Speech Transmission. Chichester, UK: John Wiley & Sons, Ltd, 2008. http://dx.doi.org/10.1002/9780470727188.

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Frame relay for high speed networks. New York: J. Wiley & Sons, 1999.

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The application of variable speed drives. Research Triangle Park, N.C: Instrument Society of America, 1987.

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Rainer, Martin, ed. Digital speech transmission: Enhancement, coding, and error concealment. Chichester, West Sussex, England: Wiley, 2005.

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Bob, Schetgen, and American Radio Relay League, eds. Packet--speed, more speed, and applications: A collection of advanced packet methods and activities from ARRL publications and other sources. Newington, CT: American Radio Relay League, 1995.

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Variable speed drive fundamentals. Lilburn, GA: Fairmont Press, 1994.

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Variable speed drive fundamentals. 2nd ed. Liburn, GA: Fairmont Press, 1997.

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Book chapters on the topic "Transmission speeds"

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Gelenbe, Erol, Mateusz P. Nowak, Piotr Frohlich, Jerzy Fiolka, and Jacek Checinski. "Energy, QoS and Security Aware Edge Services." In Communications in Computer and Information Science, 102–17. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-09357-9_9.

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AbstractWith the development of communication technologies and the increasing bandwidth of optical fibres and transmission speeds in current 5G and future 6G wireless networks, there is a growing demand for solutions organising traffic in such networks, taking into account both end-to-end transmissions and the possibility of data processing by edge services. The most pressing problems of today’s computer networks are not only bandwidth and transmission delays, but also security and energy consumption, which is becoming increasingly important in today’s climate. This paper presents a solution based on neural networks that organises network traffic taking into account the above criteria - quality of service (QoS), energy consumption and security.
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Weik, Martin H. "transmission speed." In Computer Science and Communications Dictionary, 1825. Boston, MA: Springer US, 2000. http://dx.doi.org/10.1007/1-4020-0613-6_20020.

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Weik, Martin H. "high-speed transmission." In Computer Science and Communications Dictionary, 728. Boston, MA: Springer US, 2000. http://dx.doi.org/10.1007/1-4020-0613-6_8392.

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Weik, Martin H. "low-speed transmission." In Computer Science and Communications Dictionary, 943. Boston, MA: Springer US, 2000. http://dx.doi.org/10.1007/1-4020-0613-6_10755.

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Weik, Martin H. "instantaneous transmission speed." In Computer Science and Communications Dictionary, 794. Boston, MA: Springer US, 2000. http://dx.doi.org/10.1007/1-4020-0613-6_9156.

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Weik, Martin H. "effective transmission speed." In Computer Science and Communications Dictionary, 482. Boston, MA: Springer US, 2000. http://dx.doi.org/10.1007/1-4020-0613-6_5839.

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Davis, Justin. "Ideal Transmission Lines." In High–Speed Digital System Design, 23–52. Cham: Springer International Publishing, 2006. http://dx.doi.org/10.1007/978-3-031-79740-8_2.

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Davis, Justin. "Realistic Transmission Lines." In High–Speed Digital System Design, 53–77. Cham: Springer International Publishing, 2006. http://dx.doi.org/10.1007/978-3-031-79740-8_3.

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Weik, Martin H. "effective speed of transmission." In Computer Science and Communications Dictionary, 482. Boston, MA: Springer US, 2000. http://dx.doi.org/10.1007/1-4020-0613-6_5836.

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Vasie, Marius, Domenico Mundo, and Laurenţia Andrei. "New Algorithm for Variable Speed Gear Generation Process." In Power Transmissions, 435–44. Dordrecht: Springer Netherlands, 2013. http://dx.doi.org/10.1007/978-94-007-6558-0_34.

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Conference papers on the topic "Transmission speeds"

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Gudal, Sameer, Yong Pan, Shuh-Yuan Liou, V. Sundararajan, Daniel Antonetti, and Paul K. Wright. "Design System for Composite Transmission Error Prediction for Automatic Transmissions." In ASME 2004 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2004. http://dx.doi.org/10.1115/detc2004-57721.

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Noise in vehicular automatic transmissions is a complex phenomenon involving several interacting factors. One of the contributing factors to noise for a single pair of meshing gears has been shown to be the transmission error. The transmission error (TE) is defined in terms of deviation of the speed ratio from the ideal speed ratio. It has since been hypothesized that the composite transmission error in a planetary system would be the key contributor to noise in automatic transmissions. This composite error would have to include the contributions from individual meshes and account for the configuration of the transmission system. This paper describes a design system that enables engineers to predict and study effects of parameter variation on the composite transmission error. The designer first specifies the configuration of the transmission using canonical graphs. The graph contains the elements such as gears, clutches and brakes of the transmission system as its nodes and the relationship among them for the edges. The design system uses the graph to solve for the speeds and torques. The transmission errors for the individual meshes are computed and then combined into the composite transmission error using a simple average.
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Kahraman, A., K. Kienzle, and D. M. Zini. "A Generalized Kinematics and Power Flow Analysis Methodology for Automatic Transmission Gear Trains." In ASME 2003 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2003. http://dx.doi.org/10.1115/detc2003/ptg-48079.

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A generalized formulation for analyzing speeds and forces of the gear components of planetary automatic transmissions is proposed. The formulation is capable of analyzing any typical one-degree-of-freedom automatic transmission gear train containing any number of simple, compound or complex-compound planetary gear sets. It consists of three components: a kinematic analysis formulation, a gear ratio and kinematic configuration search algorithm, and a power flow analysis formulation. The kinematics module computes rotational speeds of gears and carriers. Given the type and number of planetary gear sets, the search module determines all possible kinematic configurations and gear tooth count combinations that result in a required set of gear ratios while eliminating all kinematic redundancies and unfavorable clutching sequences. The third component, the power-flow analysis formulation, performs a complete static force (power flow) analysis to determine all gear and bearing forces, and clutch and connection torque values. A five-speed transmission example is considered to highlight the capabilities of the proposed formulation.
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Palma, Orlando, and Carlos Cruz. "Non Linear Dynamic and Control of New Concept Orbital Pulley Infinitely Variable Transmission." In ASME 2013 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/imece2013-62225.

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The continuously variable transmissions (CVT) have been extensively studied, however, few studies of transmissions have been made that can reach the neutral and reverse rotational speeds through the separation distance of a half sided central pulley as a single variable control. This paper proposes a new clutchless transmission model, which operates through orbital pulleys to change velocity ratios for forward and reverse through neutral such that an infinitely variable transmission (OP-IVT) is obtained. The concept is described and explained, and the dynamic model of the system is proposed and shown in open loop. The system is also controlled via a numerical simulation program with PID control showing the dynamic closed loop behaviour of the generated model in trajectory tracking and disturbance rejection, showing the control as the capability to meet a wide range of speeds without losing the known efficiency performance of current continuously variable transmissions.
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Hedman, Anders. "Hydrodynamic Torque Converters in Mechanical Transmission Systems: Methods and Analysis." In ASME 1994 International Gas Turbine and Aeroengine Congress and Exposition. American Society of Mechanical Engineers, 1994. http://dx.doi.org/10.1115/94-gt-285.

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Methods for analysis of general mechanical transmission systems with a hydrodynamic torque converter (HTC) are presented. The methods are adapted for computer calculations. The properties of the HTC must be known, either explicitly as speed and torque characteristics, or implicitly as internal geometry (blade angles, etc.). Linear relationships between the torques and between the speeds of the shafts of the transmission system (except the HTC) are easily formulated. The HTC has coupled, non-linear, relationships for torques and speeds. Different ways of including these non-linear equations are presented. This can be implemented in a computer program. Solving the equation system yields the torque and speed of each shaft of the transmission system. Power losses can be handled.
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Yan, Chunlin, Hidetoshi Kayama, and Atsushi Harada. "An Adaptive Transmission Scheme Robust to Variant Moving Speeds." In 2011 IEEE Vehicular Technology Conference (VTC 2011-Spring). IEEE, 2011. http://dx.doi.org/10.1109/vetecs.2011.5956225.

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Gopal, Inder S. "Impact of gigabit transmission speeds on distributed network control." In Optical Fiber Communication Conference. Washington, D.C.: OSA, 1992. http://dx.doi.org/10.1364/ofc.1992.tue3.

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Hedman, Anders. "Transmission Analysis: Automatic Derivation of Relationships." In ASME 1992 Design Technical Conferences. American Society of Mechanical Engineers, 1992. http://dx.doi.org/10.1115/detc1992-0032.

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Abstract A method for derivation of relationships for general mechanical transmission systems is given. The method is adapted for computer aided analysis and synthesis of the kinematics, loads and power flows. Losses are included. All relationships are handled by a computer program. No manual formulation and elimination of equations are necessary. The user only needs to describe the transmission system: 1. The transmission units, e.g. gear transmissions, planetary gear trains, clutches, input and output shafts. 2. How the shafts of those units are connected. Then, the computer program formulates and arranges the relationships. After that, a commercial program, “Maple”, performs the algebraic eliminations. Relationships between the speeds and/or torques of two arbitrary shafts can be derived, e.g. an algebraic relationship for the overall efficiency. Different power flows are possible in split-power transmissions. Special algorithms handle that. The method is a useful tool. It saves time and eliminates the risk for human errors.
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Yates, W. Allan. "Design Principles of a Four Bar Crank Continuously Variable Transmission." In ASME 2008 2nd International Conference on Energy Sustainability collocated with the Heat Transfer, Fluids Engineering, and 3rd Energy Nanotechnology Conferences. ASMEDC, 2008. http://dx.doi.org/10.1115/es2008-54025.

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Continuously Variable Transmissions (CVTs) can be used to optimize the energy utilization of systems by allowing the prime mover to operate at speeds of peak efficiency while allowing the driven components to move at desired speeds. A CVT saves energy by reducing the off-peak efficiency of a system. The basic design principles of a Continuously Variable Transmission composed of a sequence of 4-bar cranks are discussed. The vector solution for 4-bar cranks is iteratively solved for a crank sequence to illustrate how different output speeds can be obtained from the same input speed. This is accomplished by varying the length of the connecting link on each 4-bar crank in the sequence. Solutions are plotted. Each 4-bar crank is located on the same drive shaft and the same driven shaft. Each crank has the same drive link length and the same driven crank length. A one way clutch located on each driven link transmits motion to the driven shaft. The cranks are positioned so that they are out of phase with each other so that only the fastest crank transmits motion, over-running all the other cranks. For a given length of the connecting link, the motion of the driven shaft is not uniform. This is due to the 4-bar crank transmission of peak speed. As one 4-bar crank moves, at some point the angular speed of the driven link will overtake the speed of the driven link on the other crank sets. It will then peak and then slow to be overtaken by another crank-set. The more evenly distributed crank-sets used the more uniform the motion will be. In this sense, a given length of connecting link for the sequence of cranks will generate an average drive shaft speed. If the length of the connecting link in a 4-bar crank is changed, a change in motion of the driven shaft will occur. By changing the length of the connecting link on the 4-bar cranks, the average speed of the driven shaft can be changed. A CVT is made by infinitesimally changing the length of the connecting link. This infinitesimal change is easily accomplished via standard components such as pneumatic or hydraulic cylinders or various other means.
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Li, Z. R., X. F. Wang, and W. D. Zhu. "Dynamic Analysis of a Novel Geared Infinitely Variable Transmission." In ASME 2014 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/imece2014-36551.

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A novel geared infinitely variable transmission (IVT) that can generate a continuous output-to-input speed ratio from zero to a certain value is studied for vehicle and wind turbine applications. The principle of changing the output-to-input speed ratio is to use a crank-slider mechanism; the output-to-input speed ratio is controlled by adjusting the crank length. Since the crank-slider mechanism can lead to relatively large variation of the output-to-input speed ratio in one rotation of the crank, the instantaneous input and output speeds and accelerations have variations and the corresponding forces exerted on each part of the IVT can have obvious changes in one rotation of the crank. Since forces on some parts of the IVT are critical and can cause failure of the IVT, a dynamic analysis of the IVT is necessary to simulate the input and output speeds and accelerations. A method that combines Lagrangian dynamics and Newtonian dynamics is developed in this work to analyze the motion of the IVT. The dynamic analysis results can be used to evaluate the design of the IVT.
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Judice, C. N. "Entertainment Video-On-Demand At T1 Transmission Speeds (1.5 Mb/S )." In Visual Communications and Image Processing '88: Third in a Series, edited by T. Russell Hsing. SPIE, 1988. http://dx.doi.org/10.1117/12.968978.

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Reports on the topic "Transmission speeds"

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Korendyasev, G. AUTOMATIC TRANSMISSION GEAR SHIFTS ANALYSIS AT LOW SPEEDS OF THE VEHICLE. Journal Article published January 2020 in Bulletin of Science and Technical Development issue 149, 2020. http://dx.doi.org/10.18411/vntr2019-149-4.

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Korendyasev, G., K. Salamandra, and L. Tyves. AUTOMATIC TRANSMISSION GEAR SHIFTS ANALYSIS AT LOW SPEEDS OF THE VEHICLE. Journal Article published January 2020 in Bulletin of Science and Technical Development issue 149, 2020. http://dx.doi.org/10.18411/vntr2019-149-41.

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Korendyasev, G., K. Salamandra, and L. Tyves. AUTOMATIC TRANSMISSION GEAR SHIFTS ANALYSIS AT LOW SPEEDS OF THE VEHICLE. Journal Article published January 2020 in Bulletin of Science and Technical Development issue 149, 2020. http://dx.doi.org/10.18411/vntr2020-149-4.

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Du, Xinlong, and Jerome F. Hajjar. Structural Performance Assessment of Electrical Transmission Networks for Hurricane Resilience Enhancement. Northeastern University, August 2022. http://dx.doi.org/10.17760/d20460693.

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Hurricanes are one of the main causes for blackouts and related infrastructure damage in the United States. Electrical transmission towers, which are key parts of the electrical transmission networks, are vulnerable to high wind speeds during storms. Collapse of transmission towers may lead to a loss of functionality of transmission lines. This research focuses on regional analysis of electrical transmission networks under hurricane hazards through developing beam elements for analyzing transmission towers, selection of hurricane wind records that incorporate uncertainty quantification, generating collapse fragility curves for transmission towers, and regional damage assessment of transmission networks.
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Waseda, Yasushi, Christian Gueter, and Ken Yamane. 6-Speed Automatic Transmission Applied to FF Vehicle. Warrendale, PA: SAE International, September 2005. http://dx.doi.org/10.4271/2005-08-0409.

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Chen, Kuo-ching, Keng-tso Chuang, Han-hsueh Liu, and Ching-ya Chen. Two-Speed Automatic Transmissions of Electric Scooters. Warrendale, PA: SAE International, October 2013. http://dx.doi.org/10.4271/2013-32-9087.

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Chavdar, Bulent. Multi-Speed Transmission For Commercial Delivery Medium Duty PEDVs. Office of Scientific and Technical Information (OSTI), December 2017. http://dx.doi.org/10.2172/1418158.

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Jiang, Yuxiang. Unsettled Technology Areas in Electric Propulsion Systems. SAE International, May 2021. http://dx.doi.org/10.4271/epr2021012.

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Electric vehicle (EV) transmission technology—crucial for battery electric vehicles (BEVs) and hybrid electric vehicles (HEVs)—is developing quickly and customers want good performance at a low cost. Single-speed gearboxes are popular in electric drive systems due to their simple and cost-effective configuration. However, multispeed gearboxes are being taken to market due to their higher low-speed torque, dynamic performance, and energy efficiency. Unsettled Technology Areas in Electric Propulsion Systems reviews the economic drivers, existing techniques, and current challenges of EV transmission technology—including torque interruption during shifting; thermal and sealing issues; and noise, vibration, and harshness (NVH). This report discusses the pros and cons for both single-speed and multispeed gearboxes with numerical analysis.
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Ali, M. A., S. A. Ahmed, and L. Roytman. Novel Multiplexing Techniques for High-Speed Optical Transmission Systems Using Optical Amplifiers. Fort Belvoir, VA: Defense Technical Information Center, May 1997. http://dx.doi.org/10.21236/ada325673.

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Uzelac, Lawrence. A Multiple Coupled Microstrip Transmission Line Model for High-Speed VLSI Interconnect Simulation. Portland State University Library, January 2000. http://dx.doi.org/10.15760/etd.6410.

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