Bibliografie tematiche / Transmission

Indice

  1. Articoli di riviste
  2. Tesi
  3. Libri
  4. Capitoli di libri
  5. Atti di convegni
  6. Rapporti di organizzazioni

Letteratura scientifica selezionata sul tema "Transmission"

Autore: Grafiati
Pubblicato: 4 giugno 2021
Ultima modifica: 16 novembre 2024

Cita una fonte nei formati APA, MLA, Chicago, Harvard e in molti altri stili

Scegli il tipo di fonte:

Consulta la lista di attuali articoli, libri, tesi, atti di convegni e altre fonti scientifiche attinenti al tema "Transmission".

Accanto a ogni fonte nell'elenco di riferimenti c'è un pulsante "Aggiungi alla bibliografia". Premilo e genereremo automaticamente la citazione bibliografica dell'opera scelta nello stile citazionale di cui hai bisogno: APA, MLA, Harvard, Chicago, Vancouver ecc.

Puoi anche scaricare il testo completo della pubblicazione scientifica nel formato .pdf e leggere online l'abstract (il sommario) dell'opera se è presente nei metadati.

Articoli di riviste sul tema "Transmission"

1

Santi, M. N., J. Y. Reymond, M. C. Capel, P. Di-maio, P. Chardon, B. Grac, M. Daled e M. Pietri. "Transmissions ciblees. transmission de quaute". Réanimation Urgences 7, n. 2 (marzo 1998): 151. http://dx.doi.org/10.1016/s1164-6756(98)80283-1.

Testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
2

Kim, Hyoung Eui, Doh Sik Kim, Yoon Pyo Lee e Yung Chul Yoo. "Accelerated Life Testing Method of Transmission". Key Engineering Materials 326-328 (dicembre 2006): 1865–68. http://dx.doi.org/10.4028/www.scientific.net/kem.326-328.1865.

Testo completo
Abstract (sommario):
In this study, we proposed a process of an accelerated life testing method of 5-speed manual transmissions used in vehicles, which loads are consisted of multiple alternating loads. The entire process of an 5-speed manual transmission’s accelerated life testing method where no failures are allowed, is a process that requires an abundance of assumptions, and other factors that are estimates such as the shape parameter, beta() and the fatigue damage exponent (x). And the process is consisted of 7-step process. From the 1-setp, which is the deriving the service(use) torque and speed(rpm) profile of the transmission, to the 7-step, we could determine the accelerated life time, the accelerated torque and the accelerated speed(rpm), which are the equivalent cumulative fatigue damage. Also, we have performed accelerated life test on 5-speed manual transmission by using the following 7-step process.
Gli stili APA, Harvard, Vancouver, ISO e altri
3

Mustafayev, Amir G., e Chingiz R. Nasirov. "A study of factors affecting wear and destruction of teeth in gear mechanisms". Nafta-Gaz 79, n. 9 (settembre 2023): 604–10. http://dx.doi.org/10.18668/ng.2023.09.06.

Testo completo
Abstract (sommario):
Transmission gears are very widely used in the modern construction of the machine. Even though electrical transmissions are used, mainly mechanical transmissions are widely used in the machine building industry as they are independent and better than other transmissions. Distributing power between the transmission mechanisms and working units of various machines, by changing the angle of momentum by adjusting the speed of the parts, it is possible to change the type of movement, turn the mechanism on and off, and change the direction of the transmission mechanisms. One of the most widespread types of transmission technology is gear transmission. Tens of thousands of kilowatt-hours of gears can be transmitted. The advantages of gear transmission in comparison with others are their ability to maintain their reliability and long-term functioning of the teeth, high value of the working coefficient (0.90–0.99), simple construction, lack of special service, simplicity of the transmission number and compactness of dimensions. The missing aspects of these transmissions are high precision in their preparation and installation, and low noise level. The main criterion for the working ability of the closed gear transmissions is the contact endurance of the active surface of the tooth. For this reason, the main dimensions of the transmission are determined by the contact tension and by teeth bending.
Gli stili APA, Harvard, Vancouver, ISO e altri
4

Amir Mustafayev, Amir Mustafayev, e Chingiz Nasirov Chingiz Nasirov. "MATHEMATICAL EXPRESSIONS FOR TEMPERATURE IN THE CONTACT ZONE OF TEETH OF THE GEAR MECHANISMS". ETM - Equipment, Technologies, Materials 14, n. 02 (18 aprile 2023): 126–34. http://dx.doi.org/10.36962/etm14022023-126.

Testo completo
Abstract (sommario):
Transmission gears are very widely used in modern machine building. Despite that electrical transmissions used in machine building industry, mainly mechanical transmissions are widely used in the industry. Because mechanical transmissions are independent and better than other transmisions. Distributing power between the transmission mechanisms and working units of various machines, changing the angle of momentum, by adjusting the speed of the parts, it is possible to change the type of movement, turn on and off the mechanism, change the direction of the transmission mechanisms. One of the most widespread types of transmission technology is the gear transmission. Tens of thousands of kilowatt-hours of gears can be transmitted. Advantages of gear transmission in comparison with others is their ability to maintain their reliability and long term functioning of the teeth, big value of the working coefficient (0,9 ÷ 0,99), simple construction, lack of special service, simplicity of the transmission number and compactness of dimensions. The missing aspects of these transmissions are high precision in their preparation and installation, and low noise level. The main criterion for the working ability of the closed gear transmissions is the contact endurance of the active surface of the tooth. For this reason, the main dimensions of the transmission are determined by the contact tension and by teeth bending. Keywords: gear wheel, tension, endurance, bending
Gli stili APA, Harvard, Vancouver, ISO e altri
5

Sun, Zongxuan, e Hussein Dourra. "Model-Based Transmission Control". Mechanical Engineering 137, n. 12 (1 dicembre 2015): S15—S18. http://dx.doi.org/10.1115/1.2015-dec-9.

Testo completo
Abstract (sommario):
Abstract This article presents an overview of model-based transmission control. The transmission is an integral part of the automotive powertrain and connects the engine to the vehicle via the driveline. Just as for the internal combustion engine, traditional transmission control has been conducted with extensive calibrations. This is mainly due to the lack of precise models and low cost sensors that can enable real-time model-based feedback control. However the calibration-based approach is facing more challenges as the recent trend in transmission systems has driven up the time and cost associated with the calibration process. Recently, eight and nine speed transmissions have been introduced. The increasing number of different types of transmissions and the gear ratios can drastically increase the burden for control calibration. This calls for control-oriented model development and model-based control. Transmission control is mainly concerned with the transmission shift scheduling and gear ratio shift control. This shift scheduling determines when to shift and which gear to shift.
Gli stili APA, Harvard, Vancouver, ISO e altri
6

Esser, Constantin, e Jörg Schmitz. "Reduced friction bonded transmission pistons in automatic transmissions". ATZ worldwide 109, n. 4 (aprile 2007): 11–12. http://dx.doi.org/10.1007/bf03224924.

Testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
7

Kovalenko, Mykhaylo, Ihor Tkachuk, Iryna Kovalenko, Serhiy Zhuk e Oleg Kryshnov. "Dynamic model of magnetic transmission". Bulletin of NTU "KhPI". Series: Problems of Electrical Machines and Apparatus Perfection. The Theory and Practice, n. 1 (11) (23 luglio 2024): 28–34. http://dx.doi.org/10.20998/2079-3944.2024.1.06.

Testo completo
Abstract (sommario):
In the work, a non-contact electromechanical energy converter with permanent magnets, which is known as magnetic transmission, is studied. Magnetic transmissions have certain structural advantages compared to mechanical transmissions, namely: high reliability, efficiency, lower losses, non-contact transmission of mechanical power, no maintenance costs, and simplicity of construction. The use of magnetic transmissions for systems of conversion of low-potential mechanical energy into electrical energy is especially relevant: wind energy, water energy, energy of mechanical vibrations, etc. The use of magnetic gearboxes in autonomous wind power plants can be more promising from an economic and technical point of view compared to traditional mechanical transmissions. A numerical simulation mathematical model of magnetic transmission with permanent magnets has been developed. The use of magnetic transmission, for example, for autonomous wind power systems allows to increase the reliability of the operation of such installations, reduce operating costs and increase the efficiency of their operation. In emergency modes of operation, the use of magnetic transmission allows to avoid destruction or emergency shutdowns of electrical equipment. The developed simulation model of magnetic transmission takes into account the pulsations of the electromagnetic moment due to the discrete structure of the magnetic transmission and the change of the model parameters when the input moment changes: pulsations, losses in the magnetic core and permanent magnets, the change of the load angle and the transmitted electromagnetic moment. A feature of the developed model of the magnetic transmission system is that a change in the load of the electric power source leads to a change in the operating point on the mechanical characteristics of the rotor of the wind turbine. Conversely, when the wind parameters change, the output parameters of the source of electrical energy change: power, voltage, current and electromagnetic moment.
Gli stili APA, Harvard, Vancouver, ISO e altri
8

Dieckhaus, Kevin D., Toan H. Ha, Stephen L. Schensul e Avina Sarna. "Modeling HIV Transmission from Sexually Active Alcohol-Consuming Men in ART Programs to Seronegative Wives". Journal of the International Association of Providers of AIDS Care (JIAPAC) 19 (1 gennaio 2020): 232595822095228. http://dx.doi.org/10.1177/2325958220952287.

Testo completo
Abstract (sommario):
Background: The rollout of antiviral therapy in Low and Middle Income Countries (LMICs) has reduced HIV transmission rates at the potential risk of resistant HIV transmission. We sought to predict the risk of wild type and antiviral resistance transmissions in these settings. Methods: A predictive model utilizing viral load, ART adherence, genital ulcer disease, condom use, and sexual event histories was developed to predict risks of HIV transmission to wives of 233 HIV+ men in 4 antiretroviral treatment centers in Maharashtra, India. Results: ARV Therapy predicted a 5.71-fold reduction in transmissions compared to a model of using condoms alone, with 79.9%, of remaining transmissions resulting in primary ART-resistance. Conclusions: ART programs reduce transmission of HIV to susceptible partners at a substantial increased risk for transmission of resistant virus. Enhanced vigilance in monitoring adherence, use of barrier protections, and viral load may reduce risks of resistant HIV transmissions in LMIC settings.
Gli stili APA, Harvard, Vancouver, ISO e altri
9

Wiwanitkit, Viroj. "Unusual mode of transmission of dengue". Journal of Infection in Developing Countries 4, n. 01 (30 novembre 2009): 051–54. http://dx.doi.org/10.3855/jidc.145.

Testo completo
Abstract (sommario):
Dengue is the most important tropical mosquito-borne infectious disease caused by an arbovirus, the dengue virus. It should be noted that there are still other unusual modes of transmission of dengue infection. This paper summarizes those non vector-borne transmissions of dengue including vertical transmission, transfusion related transmission, transplantation related transmission, and needle-stick-related transmission.
Gli stili APA, Harvard, Vancouver, ISO e altri
10

Ahmad, Lalu Turjiman. "SISTEM ISNĀD HADĪTS DAN AWAL MULA PENGGUNAANNYA DALAM TRADISI PERIWAYATAN PUISI ARAB JAHILIYAH". ALQALAM 28, n. 1 (29 aprile 2011): 121. http://dx.doi.org/10.32678/alqalam.v28i1.536.

Testo completo
Abstract (sommario):
It is ordinary that riwāyah (oral transmission) has been the main media in transmitting knowledge. Indeed, for the Arabs, the transmission system was used not only in transmitting hadits, but also in transmitting the history. In terms of the transmission of traditions, the transmitters were very strict in applying the rules of transmission. Hence, such an isnād system has a very important value in the history. Muslims in the past gave much attention to such an isnād system.The transmissions of poetry had been emerged before the transmissions did. Every poetry has the transmitters. They keep and guarantee the continuity of the poetry transmission. The relation between the poetry transmitters and their poetries is not different from that of the transmitters of hadits and their hadits. Key words: hadits, isnād, Jahiliyah poetry, oral transmission.
Gli stili APA, Harvard, Vancouver, ISO e altri
Più fonti

Tesi sul tema "Transmission"

1

Jayachandran, Krishna K. "STBC-encoded cooperative asynchronous transmissions for transmission energy efficiency". Diss., Online access via UMI:, 2005.

Cerca il testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
2

Amai, Nikabou. "Contribution à la modélisation paramétrique en transmission mécanique : le modèle ARMAX entre l'erreur de transmission et le bruit d'engrènement". Lyon, INSA, 1998. http://www.theses.fr/1998ISAL0118.

Testo completo
Abstract (sommario):
La conception des transmissions par engrenages s'oriente maintenant vers une réduction des nuisances sonores et vibratoires, après avoir optimisé les géométries. Depuis quelques années, l'erreur de transmission est considérée comme la principale excitation mesurable des systèmes engrenants. Dans le cadre de ce travail, nous avons cherché à établir un modèle expérimental du transfert entre l'erreur de transmission et le bruit d'engrènement d'un étage de réduction, prenant en compte les conditions de fonctionnement. Parmi les structures de modèles paramétriques disponibles, seul le modèle ARMAX permet d'avoir une bonne représentation de la fonction de transfert avec un faible nombre de paramètres. Ce modèle nécessite néanmoins une mise en forme des signaux et une étude par bandes de fréquence. L'étude présentée porte essentiellement sur la fréquence d'engrènement. L'interprétation physique du modèle passe par l'établissement de l'équation différentielle gouvernant le système modélisé. Cette première approche a montré que l'excitation du système est caractérisée par une combinaison linéaire de l'erreur de transmission et de sa dérivée par rapport au temps. Une étude paramétrique par la méthode des plans d'expériences a montré que la charge appliquée sur la denture n'intervient pas et que les facteurs géométriques de conception sont couplés aux facteurs de fonctionnement. Ces facteurs modifient le système de génération du bruit d'engrènement. La prise en compte de ces modifications sur les coefficients de l'équation différentielle permet de proposer un modèle hybride complet du transfert entre l'erreur de transmission et le bruit d'engrènement. Cette démarche est transposable à des transmissions de puissance complètes de type "boîte de vitesses"
Design of gear power transmissions moves towards reduction of vibration and noise pollution after have improving geometry. Since several years, transmission error is recognised as the main measurable excitation of the gearing mechanisms. In this work, we have chosen to introduce an experimental model of transfer between transmission error and acoustic effects on a one-stage gearing system, taking into account real operating conditions. From the available structures of parametric model, only the ARMAX model seems to be a reliable description of transfer function with a low number of parameters. These models nevertheless require signal modifications and an analysis by frequency bands. The presented study is essentially concerned with mesh frequency. The physical interpretation of the models runs though establishment of the differential equation which governs the concerned system. This first approach shows that the excitation is described by a combination of transmission error and its first time derivative. A parametric study, with the help of experimental design, leads to the conclusion that load is not the most influent factor and that geometric factors are associated with operating factors. These factors change the mechanism of gear noise generation. Taking these modifications into account on differential equation coefficients permits to propose a complex hybrid model of the transfer between transmission error and gearing noise. This modelisation method can be used on entire gearing power transmissions like automotive gearbox
Gli stili APA, Harvard, Vancouver, ISO e altri
3

Ulsund, Ragnar. "Offshore Power Transmission : Submarine high voltage transmission alternatives". Thesis, Norwegian University of Science and Technology, Department of Electrical Power Engineering, 2009. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-9937.

Testo completo
Abstract (sommario):

Offshore power transmission is becoming an increasingly important issue. To moderate climate change, world leaders have set environmental goals that will be very difficult to reach without renewable power production and the removal of production units with high emissions. Wind power and electrification have been the focus in this report. Plans for the expensive wind power are already moving offshore. This report has made an attempt at suggesting a guideline for well-suited transmission systems, for wind power projects located at a distance in order to make them more economically attractive. Another emphasis has been to find the most suitable transmission system for gas turbines at offshore installations. As expected, the use of alternating current is best suited at shorter distances. At longer distances this system is still feasible up to 350 km, but losses will be high and there will be limited power available. A conventional thyristor-based direct current system will therefore be an attractive option for high power ratings and long distances. On the other hand, direct current based on voltage-source converters is considered more expensive, but has an improved control of reactive power and is therefore preferable to the conventional direct current system. To determine which system has the best design, one has to consider each case individually.

Gli stili APA, Harvard, Vancouver, ISO e altri
4

Rodriguez, Claudia Patricia. "Transmission pricing". Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape4/PQDD_0028/MQ50390.pdf.

Testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
5

Shang, Wenzhuo. "Essays on electricity transmission investment and financial transmission rights". [Ames, Iowa : Iowa State University], 2006.

Cerca il testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
6

Freschi, Carla Roberta [UNESP]. "Investigação experimental sobre a transmissão aerógena e naso-nasal de Salmonella enterica subespécie enterica sorotipo Derby em suínos". Universidade Estadual Paulista (UNESP), 2007. http://hdl.handle.net/11449/101255.

Testo completo
Abstract (sommario):
Made available in DSpace on 2014-06-11T19:31:11Z (GMT). No. of bitstreams: 0 Previous issue date: 2007-03-27Bitstream added on 2014-06-13T19:01:35Z : No. of bitstreams: 1 freschi_cr_dr_jabo.pdf: 603658 bytes, checksum: 15276f88dc187672ee833d1c19fa7f90 (MD5)
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
Os suínos e seus produtos são considerados importantes fontes de salmonelose humana. Desta forma, o controle das infecções nas granjas é considerado essencial para a prevenção de Salmonella na cadeia produtiva de suínos. No entanto, o maior entrave na profilaxia da infecção é, principalmente, a falta de conhecimentos sobre sua epidemiologia em sistemas de produção intensivos de criação de suínos, principalmente em relação às possíveis vias de transmissão desse agente. Este estudo testou a hipótese da transmissão nasonasal (E1) e aerógena (E2) de Salmonella Derby na espécie suína. Os experimentos foram realizados em isoladores construídos em aço inoxidável e vidro e totalmente controlados. No E1, os isoladores dos suínos inoculados e dos suínos sentinela estavam conectados por pequena fenda que permitia apenas o contato naso-nasal. Em E2 os isoladores estavam conectados por condutores de ar que permitiam o fluxo de ar unidirecional do isolador 1 (suínos controle) ao isolador 3 (suínos sentinela), passando pelo isolador 2 (suínos inoculados). A duração de ambos experimentos foi de 15 dias. Nesse período, amostras dos sacos de dejetos, dos suabes retais, das fezes do piso e do ar foram colhidas diariamente e avaliadas quanto a presença de Salmonella. A hipótese de transmissão naso-nasal e aerógena de S. Derby não foi corroborada pelo isolamento e detecção do agente nos animais sentinela.
Pork and pork products are recognized as one of the major sources for human salmonellosis. Howeveri the infection control in the farms is considered essential for the Salmonella prevention in the productive swine chain. However, the most impediment in the infection prophylaxis is, mainly, the lack of knowledge on its epidemiology in intensives production systems, mainly related to the transmission possible ways of this agent. This study has tested the hypothesis of nose-to-nose and airborne transmission of Salmonella Derby in the swine species. The trials were performed using stainlesssteel and glass isolation cabinets and totally controlled. In the trial 1, inoculated pigs and sentinel pigs isolation cabinets were connected by small crack that allowed only the nose-to-nose contact. In the trial 2 isolation cabinets were connected by air ducts that allowed an unidirectional airflow from cabinet 1 (control pigs) to cabinet 3 (sentinel pigs), passing through cabinet 2 (inoculated pigs). The duration of both trials were 15 days. At this period, slurry bags, rectal swabs, pooled faecal from the floor and air samples were collected daily and assessed by culture and PCR. The nose-to-nose and airborne transmission hypothesis of S. Derby was not corroborated by the agent isolation and detection in the sentinel pigs.
Gli stili APA, Harvard, Vancouver, ISO e altri
7

Kwon, Youngho. "Estimating the value of financial transmission rights for transmission expansion". Thesis, University of Manchester, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.497600.

Testo completo
Abstract (sommario):
The current situation of insufficient investment in transmission tends to weaken the advantages of a deregulated power industry. These shortages mainly arise because of the risk of not recovering the cost of investing in new lines Location Marginal prices (LMPs) and Financial Transmission Rights (FTRs) are key elements in reducing these investment risks. Market participants are able to hedge against price fluctuations caused by transmission congestion through the purchase or sale of FTRs. The value of FTRs, which is tied to the difference in prices between locations in the network, would indicate where transmission expansion should be implemented.
Gli stili APA, Harvard, Vancouver, ISO e altri
8

Dán, György. "Internet Video Transmission". Doctoral thesis, KTH, School of Electrical Engineering (EES), 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-623.

Testo completo
Abstract (sommario):

The Internet has rapidly evolved from being a scientific experiment to a commercial network connecting millions of hosts that carries traffic generated by a large amount of applications with diverse requirements. Its architecture was however designed to enable efficient point-to-point delivery of bulk data, and can not provide statistical guarantees on the timely delivery of delay sensitive data such as streaming and real-time multimedia. Thus, applications that require low loss probabilities in today's Internet have to use some end-to-end error recovery mechanism. For delay sensitive applications the introduced latency by the applied schemes has to be low as well. Traffic control functions such as delay limited shaping and forward error correction (FEC), and multiple description coding (MDC) have been proposed for variable bitrate video. Their major drawback is, however, that it is difficult to predict their efficiency, as it depends on many factors like the characteristics of the stream itself, the characteristics of the traffic in the network and the network parameters. Consequently, it is difficult to decide which control mechanisms to employ, how to combine them and to choose the right parameters (e.g. block length, code rate) for optimal performance.

In this thesis we present results on the efficiency of traffic control functions and MDC for video transmission based on mathematical models and simulations. We investigate the efficiency of delay limited traffic shaping and the trade-offs in the joint use of traffic shaping and forward error correction. We identify the packet size distribution of the traffic in the network as an additional factor that may influence the efficiency of FEC, and present a thorough analysis of its possible effects. We present an analytical comparison of MDC versus media-dependent FEC and media-independent FEC, and based on the results we conclude that MDC is a promising error control solution for multimedia communications with very strict delay bounds in an environment with bursty losses. We combine the analytical results with traces from measurements performed on the Internet to evaluate how efficient these error control schemes are under real loss patterns. We compare the efficiency of MDC and media-dependent FEC in the presence of channel estimation errors; we propose a new rate allocation method, which is robust to mis-estimations of the channel state and which improves error resilience on non-stationary channels. Finally we present an analytical model of the performance of an end-point-based multimedia streaming architecture based on multiple distribution trees and forward error correction, and analyze the behavior of the architecture for a large number of nodes.

Gli stili APA, Harvard, Vancouver, ISO e altri
9

Dan, György. "Internet Video Transmission". Doctoral thesis, KTH, Telekommunikationssystem, TSLab, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-623.

Testo completo
Abstract (sommario):
The Internet has rapidly evolved from being a scientific experiment to a commercial network connecting millions of hosts that carries traffic generated by a large amount of applications with diverse requirements. Its architecture was however designed to enable efficient point-to-point delivery of bulk data, and can not provide statistical guarantees on the timely delivery of delay sensitive data such as streaming and real-time multimedia. Thus, applications that require low loss probabilities in today's Internet have to use some end-to-end error recovery mechanism. For delay sensitive applications the introduced latency by the applied schemes has to be low as well. Traffic control functions such as delay limited shaping and forward error correction (FEC), and multiple description coding (MDC) have been proposed for variable bitrate video. Their major drawback is, however, that it is difficult to predict their efficiency, as it depends on many factors like the characteristics of the stream itself, the characteristics of the traffic in the network and the network parameters. Consequently, it is difficult to decide which control mechanisms to employ, how to combine them and to choose the right parameters (e.g. block length, code rate) for optimal performance. In this thesis we present results on the efficiency of traffic control functions and MDC for video transmission based on mathematical models and simulations. We investigate the efficiency of delay limited traffic shaping and the trade-offs in the joint use of traffic shaping and forward error correction. We identify the packet size distribution of the traffic in the network as an additional factor that may influence the efficiency of FEC, and present a thorough analysis of its possible effects. We present an analytical comparison of MDC versus media-dependent FEC and media-independent FEC, and based on the results we conclude that MDC is a promising error control solution for multimedia communications with very strict delay bounds in an environment with bursty losses. We combine the analytical results with traces from measurements performed on the Internet to evaluate how efficient these error control schemes are under real loss patterns. We compare the efficiency of MDC and media-dependent FEC in the presence of channel estimation errors; we propose a new rate allocation method, which is robust to mis-estimations of the channel state and which improves error resilience on non-stationary channels. Finally we present an analytical model of the performance of an end-point-based multimedia streaming architecture based on multiple distribution trees and forward error correction, and analyze the behavior of the architecture for a large number of nodes.
QC 20101115
Gli stili APA, Harvard, Vancouver, ISO e altri
10

Wang, Limin. "Progressive image transmission". Thesis, University of Ottawa (Canada), 1988. http://hdl.handle.net/10393/5394.

Testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
Più fonti

Libri sul tema "Transmission"

1

Srivastava, Atima. Transmission. New Delhi, India: Penguin Books, 1992.

Cerca il testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
2

Kunzru, Hari. Transmission. New York: Penguin, 2005.

Cerca il testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
3

Kunzru, Hari. Transmission. London [etc.]: Penguin Books, 2005.

Cerca il testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
4

O'Nan, Stewart. Transmission. Colo. Spgs. [i.e. Colorado Springs], CO: Arjuna Library, 1987.

Cerca il testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
5

Transmission: Committee for the Visual Arts. Transmission. [London: Black Dog, 2001.

Cerca il testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
6

Meaney, John. Transmission. London: Gollancz, 2012.

Cerca il testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
7

Sally, Leabhart, e Leabhart Thomas, a cura di. Transmission. Claremont, Calif: Pomona College Theatre Department, 1999.

Cerca il testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
8

Association, American Gas, a cura di. Transmission. Arlington, Va: American Gas Association, 1985.

Cerca il testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
9

Kunzru, Hari. Transmission. New York: Dutton, 2004.

Cerca il testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
10

Kunzru, Hari. Transmission. London: Hamish Hamilton, 2004.

Cerca il testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
Più fonti

Capitoli di libri sul tema "Transmission"

1

Cheng, Xiang, Luoyang Fang, Liuqing Yang e Shuguang Cui. "Transmission". In Wireless Networks, 27–33. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-96116-3_3.

Testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
2

Gooch, Jan W. "Transmission". In Encyclopedic Dictionary of Polymers, 759. New York, NY: Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_12031.

Testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
3

Weik, Martin H. "transmission". In Computer Science and Communications Dictionary, 1819. Boston, MA: Springer US, 2000. http://dx.doi.org/10.1007/1-4020-0613-6_19971.

Testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
4

Iwadate, Yuichi, Yozo Utsumi, Yoshimichi Ohtsuka, Kenji Oumaru, Keiichi Kubota, Toshiyuki Takegahara, Taiji Nishigawa, Akio Yanagimachi e Takehiko Yoshino. "Transmission". In High Definition Television, 71–138. Boston, MA: Springer US, 1993. http://dx.doi.org/10.1007/978-1-4684-6536-5_3.

Testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
5

Jufer, Marcel. "Transmission". In Electric Drives, 15–40. Hoboken, NJ USA: John Wiley & Sons, Inc., 2013. http://dx.doi.org/10.1002/9781118622735.ch3.

Testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
6

Roberts-Zauderer, Dianna Lynn. "Transmission". In Metaphor and Imagination in Medieval Jewish Thought, 103–53. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-29422-9_4.

Testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
7

Hilgers, Michael. "Transmission". In Transmissions and Drivetrain Design, 11–35. Berlin, Heidelberg: Springer Berlin Heidelberg, 2022. http://dx.doi.org/10.1007/978-3-662-65860-4_2.

Testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
8

Livesey, Andrew. "Transmission". In Practical Motorsport Engineering, 97–148. First edition. | Abingdon, Oxon : Routledge/Taylor & Francis, 2019.: Routledge, 2018. http://dx.doi.org/10.1201/9781351239189-4.

Testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
9

Frosh, Stephen. "Transmission". In Hauntings: Psychoanalysis and Ghostly Transmissions, 117–40. London: Palgrave Macmillan UK, 2013. http://dx.doi.org/10.1057/9781137031259_6.

Testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
10

Bonnick, Allan. "Transmission". In Automotive Powertrain Science and Technology, 66–86. Abingdon, Oxon ; New York, NY : Routledge, 2020.: Routledge, 2020. http://dx.doi.org/10.1201/9780429318023-4.

Testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri

Atti di convegni sul tema "Transmission"

1

Elliott, David. "The 525 Transmission Development Test Stand". In Vertical Flight Society 72nd Annual Forum & Technology Display, 1–6. The Vertical Flight Society, 2016. http://dx.doi.org/10.4050/f-0072-2016-11555.

Testo completo
Abstract (sommario):
Testing of high speed / high power helicopter transmissions is required to meet regulatory requirements and promote product safety. Transmission development testing typically ranges from 18 months to two years and involves tests that include; Oil Management, Gear Tooth Pattern Development, Gear Tooth Bending Fatigue, Endurance and Loss of Lubricant Testing. To accomplish these goals for the Bell 525, Bell Helicopter has developed new electrically regenerative test stands that both deliver and absorb power in the drive path. These new test stands provide a means to test the transmissions of other helicopter models with minimal changes, resulting in lower development costs. The transmission test system utilizes electric motors on the input side of the drive system and a generator on the output. While full power is passed through the drive system, the regenerative cycle means that net power consumed is limited to just the electrical and drive system losses - a small fraction of the drive system power. This paper reviews the design approach of the 525's electrically regenerative test stand and compares this system to prior mechanically regenerative test stand designs. The new approach, allows Bell Helicopter to achieve enhanced test efficiency resulting in faster development cycles and direct savings to the customer.
Gli stili APA, Harvard, Vancouver, ISO e altri
2

Harder, Todd. "Development & Testing of a Rotorcraft Engine Transmission Lubrication System". In Vertical Flight Society 76th Annual Forum & Technology Display. The Vertical Flight Society, 2020. http://dx.doi.org/10.4050/f-0076-2020-16372.

Testo completo
Abstract (sommario):
Within high-speed aerospace transmissions, lubrication system design contributes heavily to windage losses and overall transmission efficiency. Often, qualifying the lubrication system for a high-speed transmission is considered one of the largest risks to a program given the transmission’s predisposition to overheat and the iterative nature of lubrication system design. This paper describes the development of a new high-speed transmission lubrication scavenge system and the testing that was done to qualify two separate configurations of the transmission for flight test. The testing detailed in this paper was successful in qualifying a research and development transmission for the H47 T408 Engine Demonstration Program and was utilized to inform future lubrication system designs for high-speed transmissions.
Gli stili APA, Harvard, Vancouver, ISO e altri
3

Bara, Mircea. "Designing Aspects of Cylindrical Transmission". In ASME 2006 International Mechanical Engineering Congress and Exposition. ASMEDC, 2006. http://dx.doi.org/10.1115/imece2006-13087.

Testo completo
Abstract (sommario):
The cylindrical transmission with balls is a new type of mechanical transmission, that allows movement transmission between two coaxial shafts [1]. In the first part of this paper presents the geometric and kinematics study of the elements of cylindrical -sinusoidal transmissions with balls, determining in this way the transmission ratios. In the second part of this paper presents the geometric and kinematics study of the elements of differential cylindrical transmission with balls, determining in this way the transmission ratios. An advantage of this transmission, as compared to other mechanical transmissions, is given by the possibility to obtain more transmission ratios. In case all cylinders of simple cylindrical transmission are moving elements a differential transmission it obtained. Another advantage is given by the possibility of obtaining complex transmissions by series and/or parallel arrangement of cylindrical transmission simple units.
Gli stili APA, Harvard, Vancouver, ISO e altri
4

Srinath, Nitin, Ashwin Kumar e Sharnappa Joladarashi. "Smart Multimode Transmission for Automobiles". In ASME 2017 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/detc2017-67019.

Testo completo
Abstract (sommario):
There are two basic types of transmissions — manual and automatic. While manual transmissions have greater transmission efficiency and better overall driving experience, it is difficult and not as easy to handle as automatic transmissions. Automatic transmissions make life a lot easier for the driver but are less efficient and laggard. So, the aim of this project is to take the best of both worlds and combine it in one, i.e. a transmission system that is capable of working as both a manual and an automatic transmission. For this, we plan to automate a regular manual transmission with a manual override option on both the clutch and the gearbox systems. Motors will be used to control the clutch and the changing of gears in the gearbox. In the manual mode, the motors will be operated by user input switches (clutch pedal and stick shift). In the automatic mode, the same motors will be controlled by a control algorithm based on various inputs like weight of the car, inclination, speed of the engine and the car etc.
Gli stili APA, Harvard, Vancouver, ISO e altri
5

Bara, Mircea. "Designing Aspects of a Frontal-Sinusoidal Transmission With Balls". In ASME 2004 International Mechanical Engineering Congress and Exposition. ASMEDC, 2004. http://dx.doi.org/10.1115/imece2004-59309.

Testo completo
Abstract (sommario):
The frontal-sinusoidal transmission with balls is a new type of mechanical transmission, that allows movement transmission between two coaxial shafts. In the first part of this paper presents the geometric and kinematics study of the elements of a frontal -sinusoidal transmissions with balls, determining in this way the transmission ratios. In the second part of this paper presents the kinetostatic study of the elements of frontal transmission with balls, determining in this way the force that acts upon these forces which are necessary in the constructive dimensioning. An advantage of this transmission, as compared to other mechanical transmissions, is given by the possibility to obtain more transmission ratios. In case all disks of simple frontal-sinusoidal transmission are moving elements a differential transmission it obtained. Another advantage is given by the possibility of obtaining complex transmissions by series and/or parallel arrangement of frontal transmission simple units.
Gli stili APA, Harvard, Vancouver, ISO e altri
6

Fadow, Olivia, Skyler Leonard e Salim Azzouz. "Automation of a Dual Planetary Gearing Transmission Using Control Mechanisms and a Programmable Logic Controller". In ASME 2022 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2022. http://dx.doi.org/10.1115/imece2022-95173.

Testo completo
Abstract (sommario):
Abstract The transmission used in this project has been worked on by three senior design teams. The fourth team is currently working to design control mechanisms to automate the manual dual planetary transmission. The control mechanisms are a combination of mechanical and pneumatic systems that are controlled by a Programmable Logic Controller (PLC) program. The transmission will be used in the Machine Elements Design Laboratory to educate students on gear transmissions and levers. SolidWorks software was used to draw and simulate the mechanical parts of the control systems, before being sent to a machine shop for manufacturing. The first control system uses vertical levers and linear actuators to control the brakes, while the second uses horizontal levers and rodless pneumatic cylinders to control the clutches. Willis Gearing Theory was then used to determine the six gear ratios realized by the transmission. To automate the mechanical parts of the control systems, a program was designed and uploaded to the CPU console. A Human Machine Interface (HMI) displays the transmission’s speed and torque readings from the PLC. It is expected that the future group will the finish the automation of the transmission and proceed with the testing phase.
Gli stili APA, Harvard, Vancouver, ISO e altri
7

Mammadov, Firuz, e Samaya Baghirova. "Research on Ratio Regulation Gear Differential Closed by a Continuously Variable Transmission (CVT)". In 2nd International Scientific-Practical Conference "Machine Building and Energy: New Concepts and Technologies". Switzerland: Trans Tech Publications Ltd, 2024. http://dx.doi.org/10.4028/p-v1xyom.

Testo completo
Abstract (sommario):
Over the past two decades, numerous research efforts have been aimed at developing efficient transmissions, in particular automotive ones, which can significantly reduce energy consumption and improve the dynamic properties of the car. The driving performance of a vehicle is one of the most important qualities that ensures comfortable movement of the passenger, which also affects traffic safety. One way to achieve this goal is to use transmissions that provide continuously variable control. gear ratio. The Continuously Variable Transmission (CVT) provides continuous shifting, changing the ratio between the input and output shafts within the desired range, which consequently improves fuel economy and vehicle performance by better matching engine operating conditions to changing road conditions. This article discusses the possibility of using composite transmissions - gear differential mechanisms closed by (CVT). Various schemes of composite transmissions are given. The conditions under which the transmission ratio of the entire transmission must be changed by changing the transmission ratio (CVT) included in the combined transmission have been studied.
Gli stili APA, Harvard, Vancouver, ISO e altri
8

Grenier, Martin, e Cle´ment Gosselin. "Kinematic Optimization of a Robotic Joint With Continuously Variable Transmission Ratio". In ASME 2011 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/detc2011-48443.

Testo completo
Abstract (sommario):
The range of possible tasks achievable by robots highly depends on the selection of motors and transmissions. For example, variable ratio transmissions surpass single ratio transmissions because they can modify the torque-speed parameters of the actuator and, therefore, maintain the optimal power output state from the motor. Consequently, the use of variable ratio transmissions may expand a robot’s achievable tasks. A robotic joint with continuously variable transmission ratio is presented in this paper. This new type of transmission joint may be used in serial or parallel robots. The transmission consists of a doubly actuated two-degree-of-freedom five-bar parallel mechanism. The main actuator is located at the input revolute joint. The variation of the ratio is achieved with the adjustment actuator located at a second revolute joint. Such a transmission, based on a linkage, may have unde-sired ratio variations for a constant adjustement joint position. Therefore, two different optimization methods are presented to determine the best geometric parameters in order to minimize the undesired ratio variation while maximizing the possible transmission ratio range. The performance indices are either optimal for the entire range or only for the maximum and minimum ratios available. A simulation is presented with the best parameters obtained with the optimization based on the maximum and minimum ratios. Results show a transmission ratio ranging from 0.9:1 to 4.5:1 with a minimal amplification of 3.9:1. The transmission ratio may vary continuously within the working boundaries. The output range of motion may be adapted to a serial robot joint.
Gli stili APA, Harvard, Vancouver, ISO e altri
9

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.

Testo completo
Abstract (sommario):
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.
Gli stili APA, Harvard, Vancouver, ISO e altri
10

Gudal, Sameer, Yong Pan, Shuh-Yuan Liou, V. Sundararajan, Daniel Antonetti e 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.

Testo completo
Abstract (sommario):
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.
Gli stili APA, Harvard, Vancouver, ISO e altri

Rapporti di organizzazioni sul tema "Transmission"

1

Baker-Jarvis, James. Transmission. Gaithersburg, MD: National Bureau of Standards, 1990. http://dx.doi.org/10.6028/nist.tn.1341.

Testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
2

Baker-Jarvis, James. Transmission. Gaithersburg, MD: National Bureau of Standards, 1992. http://dx.doi.org/10.6028/nist.tn.1355.

Testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
3

Baker-Jarvis, James. Transmission. Gaithersburg, MD: National Bureau of Standards, 1993. http://dx.doi.org/10.6028/nist.tn.1355r.

Testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
4

Skone, Timothy J. Electricity Transmission. Office of Scientific and Technical Information (OSTI), aprile 2013. http://dx.doi.org/10.2172/1509158.

Testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
5

Skone, Timothy J. Transmission flaring. Office of Scientific and Technical Information (OSTI), gennaio 2018. http://dx.doi.org/10.2172/1559855.

Testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
6

Skone, Timothy J. Transmission Fugitives. Office of Scientific and Technical Information (OSTI), gennaio 2018. http://dx.doi.org/10.2172/1559856.

Testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
7

Ough, Tom. Blocked Transmission. Asimov Press, febbraio 2024. http://dx.doi.org/10.62211/24pu-49rt.

Testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
8

Fink, S., J. Rogers e K. Porter. Transmission Cost Allocation Methodologies for Regional Transmission Organizations. Office of Scientific and Technical Information (OSTI), luglio 2010. http://dx.doi.org/10.2172/984666.

Testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
9

Rand, D. PPP Reliable Transmission. RFC Editor, luglio 1994. http://dx.doi.org/10.17487/rfc1663.

Testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
10

Skone, Timothy J. Transmission Pipeline Fugitives. Office of Scientific and Technical Information (OSTI), gennaio 2018. http://dx.doi.org/10.2172/1559823.

Testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
Ti possono interessare anche gli elenchi estesi di opere sul tema "Transmission":
Articoli di riviste Tesi Libri
Offriamo sconti su tutti i piani premium per gli autori le cui opere sono incluse in raccolte letterarie tematiche. Contattaci per ottenere un codice promozionale unico!

Vai alla bibliografia