Relevant bibliographies by topics / Download speed

Contents

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

Academic literature on the topic 'Download speed'

Author: Grafiati
Published: 24 April 2022

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Journal articles on the topic "Download speed"

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Pamungkas, Wahyu, Nunung Sadtomo, and Erlinda Febrianingtyas. "Analisis Kualitas Jaringan Akses Tembaga Terhadap Layanan Speedy Studi Kasus Di PT.Telkom,Tbk Divisi Access Site Operation Purwokerto." JURNAL INFOTEL - Informatika Telekomunikasi Elektronika 4, no. 2 (November 10, 2012): 23. http://dx.doi.org/10.20895/infotel.v4i2.105.

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The development of fast evolving telecomunication technologies starting from communications cable to wireless communications. One of the communication cable for data is a technology Asymetric Digital Subscriber Line (ADSL). ADSL technology is an access technology that enable data communications, voice and video simultaneously at cooper access network media. Speedy service is one example of the use of ADSL technology. Telkom Speedy offers internet access speeds ranging from 384 Kbps for downstream speed and 3 Mbps for upstream speed. Speed of access internet is affected by the quality of the network. Parameters that effect the quality of network are : attenuation, Signal to Noise Ratio (SNR), Packet Loss, Bit Error Ratio (BER), jitter and time to life (TTL). In this study analysis of network quality affected by these parameters were measured advance to the quality of the network by using the EMBASSY software, while the perform measurements speedtest by using internal web aplications PT.Telkom,Tbk. After measurement is complete then performed the analysis for determine network quality. Based on observations can be known on the upload and download speed the capacity of 384 Kbps, 1024 Kbps and 3 Mbps. Of these three on capacity can be known to the average percentage of the upload speed is found to be 83,33 %, while the percentage of download speeds is found to be 76,67 %
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Ferrers, Richard Anthony. "Enhancing NBN's Value." Journal of Telecommunications and the Digital Economy 8, no. 2 (May 15, 2020): 1–17. http://dx.doi.org/10.18080/jtde.v8n2.252.

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The NBN, Australia’s National Broadband Network, is nearing its 2020 completion. The value of the NBN depends on what you compare it to. While Australia’s broadband has significantly improved over the last ten years, it is useful to compare Australia’s NBN with similar activity in the OECD and with Australia’s Top 10 Trading Partners to gain a richer understanding of NBN’s value. Australia’s broadband performance compares poorly with other OECD countries on download speed, especially over 100 Mbps download subscriptions and average download speed. However, imminent release in May 2020 of new NBN gigabit pricing could significantly improve Australia’s world ranking on this average download speed comparison. Recommendations for improving NBN’s value beyond speed are made, including encouraging affordable gigabit NBN services; ongoing NBN upgrades; encouraging NBN use; focussing NBN Corporate Reporting on customer satisfaction and ongoing international comparison.
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Manlove, Jacob L., Aaron M. Shew, and Oladipo S. Obembe. "Arkansas producers value upload speed more than download speed for precision agriculture applications." Computers and Electronics in Agriculture 190 (November 2021): 106432. http://dx.doi.org/10.1016/j.compag.2021.106432.

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Nam, Youngju, Hyunseok Choi, Yongje Shin, Euisin Lee, and Eun-Kyu Lee. "Adaptive Content Precaching Scheme Based on the Predictive Speed of Vehicles in Content-Centric Vehicular Networks." Sensors 21, no. 16 (August 9, 2021): 5376. http://dx.doi.org/10.3390/s21165376.

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Content-Centric Vehicular Networks (CCVNs) are considered as an attractive technology to efficiently distribute and share contents among vehicles in vehicular environments. Due to the large size of contents such as multimedia data, it might be difficult for a vehicle to download the whole of a content within the coverage of its current RoadSide Unit (RSU). To address this issue, many studies exploit mobility-based content precaching in the next RSU on the trajectory of the vehicle. To calculate the amount of the content precaching, they use a constant speed such as the current speed of the vehicle requesting the content or the average speed of vehicles in the next RSU. However, since they do not appropriately reflect the practical speed of the vehicle in the next RSU, they could incorrectly calculate the amount of the content precaching. Therefore, we propose an adaptive content precaching scheme (ACPS) that correctly estimates the predictive speed of a requester vehicle to reflect its practical speed and calculates the amount of the content precaching using its predictive speed. ACPS adjusts the predictive speed to the average speed starting from the current speed with the optimized adaptive value. To compensate for a subtle error between the predictive and the practical speeds, ACPS appropriately adds a guardband area to the precaching amount. Simulation results verify that ACPS achieves better performance than previous schemes with the current or the average speeds in terms of the content download delay and the backhaul traffic overhead.
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Zhang, Ming, and Jin Qiu Yang. "Idle Users Management for Improved BitTorrent Performance." Key Engineering Materials 439-440 (June 2010): 859–64. http://dx.doi.org/10.4028/www.scientific.net/kem.439-440.859.

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In the past few years, there have been tremendous interest in the peer-to-peer(P2P) content delivery. This communication paradigm dramatically increases the traffic over inter-ISP links. In particular, BitTorrent(BT), the most popular P2P application, generates a huge amount of traffic on the Internet. BitTorrent’s performance is limited by the fact that typical internet users have much lower upload bandwidths than download bandwidths. This results in the overall average download speed of a BitTorrent-like file download system to be bottle-necked by the much lower upload capacity. We think about to utilize idle users’ spare upload capacity to largely improve the download speed beyond what can be achieved in a conventional BitTorrent network. In this paper, we design a system that is completely compatible with the already existing clients who conform to the BitTorrent protocol, at the same time, we analyze this system’s steady-state performance and present simulation results.
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Wu, Qing Xiang, Jian Mei Shuai, and Xiao Shuang Lu. "A Multi-Node Co-Allocation Parallel Downloading Algorithm." Applied Mechanics and Materials 58-60 (June 2011): 1590–95. http://dx.doi.org/10.4028/www.scientific.net/amm.58-60.1590.

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In distributed data storage, a particular dataset can reside at multiple locations in order to get high availability .Thus, the dataset can be downloaded in parallel from multiple nodes.Throughput between server and client changes dynamically, so the downloading speed can vary unpredictably. A dynamic parallel downloading algorithm based on measurement of bandwidth and bandwidth prediction is produced in this paper and server caching is adopted in order to improve downloading speed. The algorithm dynamically adjusts downloading of the last block to make parallel downloading from multiple servers end almost simultaneously. With this approach, the download time is reduced and the robustness of the downloading system is improved. Besides, the algorithm not only avoids complicated server selecting mechanism, but also improves load balance of the servers.
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Sundar, S. Shyam, and Carson B. Wagner. "The World Wide Wait: Exploring Physiological and Behavioral Effects of Download Speed." Media Psychology 4, no. 2 (May 2002): 173–206. http://dx.doi.org/10.1207/s1532785xmep0402_04.

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Jones, Joshua P., Kurama Okubo, Tim Clements, and Marine A. Denolle. "SeisIO: A Fast, Efficient Geophysical Data Architecture for the Julia Language." Seismological Research Letters 91, no. 4 (April 29, 2020): 2368–77. http://dx.doi.org/10.1785/0220190295.

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Abstract SeisIO for the Julia language is a new geophysical data framework that combines the intuitive syntax of a high-level language with performance comparable to FORTRAN or C. Benchmark comparisons against recent versions of popular programs for seismic data download and analysis demonstrate significant improvements in file read speed and orders-of-magnitude improvements in memory overhead. Because the Julia language natively supports parallel computing with an intuitive syntax, we benchmark test parallel download and processing of multiweek segments of contiguous data from two sets of 10 broadband seismic stations, and find that SeisIO outperforms two popular Python-based tools for data downloads. The current capabilities of SeisIO include file read support for several geophysical data formats, online data access using a variety of services, and optimized versions of several common data processing operations. Tutorial notebooks and extensive documentation are available to improve the user experience. As an accessible example of performant scientific computing for the next generation of researchers, SeisIO offers ease of use and rapid learning without sacrificing computational efficiency.
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Mohanad Ali Meteab Al-Obaidi, Basim Jamil Ali, and Bassam Alkindy. "A comparative Study of the Evolution Different Mobile Generations for Wireless Communication." journal of the college of basic education 26, no. 109 (April 2, 2022): 488–97. http://dx.doi.org/10.35950/cbej.v26i109.5352.

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The mobile communication system has revolutionized human life and made the world a small village through communications and data transmission in the form of voice calls, messages or videos with very high download speeds. This paper discusses the different communication technologies for mobile phone generations, starting from the first generation of primitive to the second and third generation, in terms of mobile voice technologies, then the fourth generation as signs of rapid data download speed started, as the speed of connection to the fourth generation networks is ten times higher than the generation connection The third, which led to the improvement of data traffic in the communications network, the high mobility recipe for people who make calls, in addition to improving global system management and improving voice quality, then the great revolution in the fifth generation that is characterized by covering all geographical areas with an increase in the high-frequency spectrum, which is characterized at high frequencies starting from 6 GHz to 100 GHz, in addition to comparing all these generations through illustrative tables.
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Park, Yong-Hyeon, Jahwan Koo, and Ung-Mo Kim. "Improving File Download Speed Based on the Selection of Healthy Peers in BitTorrent." Journal of Korean Institute of Information Technology 16, no. 1 (January 31, 2018): 133–43. http://dx.doi.org/10.14801/jkiit.2018.16.1.133.

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Dissertations / Theses on the topic "Download speed"

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Linder, Tova, and Pontus Persson. "Analyzing the predictability of download speeds in mobile networks." Thesis, Linköpings universitet, Institutionen för datavetenskap, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-119457.

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In a highly mobile and networked society the need to download large amounts of data on a mobile network is inevitable. This thesis analyzes the predictability of download speeds in mobile networks to be able to schedule downloads while in areas with high download speeds. This decreases the download time and thus the energy wasted downloading. The data analyzed is from Bredbandskollen. We find that in areas of 200 x 200 meters the download speed is easiest to predict due to a low covariance. We also find that areas with high average download speed are more likely to have neighboring areas with similar download speed than areas with low average download speed, making it easier to predict the download speed when moving between such locations. Finally, we show paths in urban areas where a user can move long distances and experience similar download speeds.
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von, Wenckstern Michael. "Web applications using the Google Web Toolkit." Master's thesis, Technische Universitaet Bergakademie Freiberg Universitaetsbibliothek "Georgius Agricola", 2013. http://nbn-resolving.de/urn:nbn:de:bsz:105-qucosa-115009.

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This diploma thesis describes how to create or convert traditional Java programs to desktop-like rich internet applications with the Google Web Toolkit. The Google Web Toolkit is an open source development environment, which translates Java code to browser and device independent HTML and JavaScript. Most of the GWT framework parts, including the Java to JavaScript compiler as well as important security issues of websites will be introduced. The famous Agricola board game will be implemented in the Model-View-Presenter pattern to show that complex user interfaces can be created with the Google Web Toolkit. The Google Web Toolkit framework will be compared with the JavaServer Faces one to find out which toolkit is the right one for the next web project
Diese Diplomarbeit beschreibt die Erzeugung desktopähnlicher Anwendungen mit dem Google Web Toolkit und die Umwandlung klassischer Java-Programme in diese. Das Google Web Toolkit ist eine Open-Source-Entwicklungsumgebung, die Java-Code in browserunabhängiges als auch in geräteübergreifendes HTML und JavaScript übersetzt. Vorgestellt wird der Großteil des GWT Frameworks inklusive des Java zu JavaScript-Compilers sowie wichtige Sicherheitsaspekte von Internetseiten. Um zu zeigen, dass auch komplizierte graphische Oberflächen mit dem Google Web Toolkit erzeugt werden können, wird das bekannte Brettspiel Agricola mittels Model-View-Presenter Designmuster implementiert. Zur Ermittlung der richtigen Technologie für das nächste Webprojekt findet ein Vergleich zwischen dem Google Web Toolkit und JavaServer Faces statt
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Books on the topic "Download speed"

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Kortiev, L. I., and A. L. Kortiev. Download a part of the book L.I. Kortiev, A.L.Kortiev Geographical spread of the Euro-Asian high-speed railway of Paris-Delhi through the Caucasus and the prospect of its construction as an International Transport Corridor. Accent Graphics Communications & Publishing, 2017. http://dx.doi.org/10.29013/lik.alk.geographical.28.

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Book chapters on the topic "Download speed"

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Abubakar, Adamu I., Akram Zeki, Haruna Chiroma, and Tutut Herawan. "Investigating Rendering Speed and Download Rate of Three-Dimension (3D) Mobile Map Intended for Navigation Aid Using Genetic Algorithm." In Advances in Intelligent Systems and Computing, 261–71. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-07692-8_25.

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França, Reinaldo Padilha, Ana Carolina Borges Monteiro, Rangel Arthur, and Yuzo Iano. "A Review of MIMO." In Design Methodologies and Tools for 5G Network Development and Application, 209–35. IGI Global, 2021. http://dx.doi.org/10.4018/978-1-7998-4610-9.ch011.

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MIMO is the technology that allows equipment to work with both polarizations at the same time, both horizontally and vertically, and the devices make this function as a download-only polarization and another upload-only polarization. Others still do not do either of these controls and connect using both biases at the same time, so the data transfer rate can double. MIMO is an integral part of modern wireless communications technologies, whether you're talking about 802.11ac or 4G LTE Wi-Fi network data. It arose from a need to increase the transmission capacity of an access point and is basically the access point's ability to receive and send simultaneous streams. This technology has a feature that the higher the speed and the more antennas the device has, the more data it can transfer at one time, meaning faster wireless download and upload speeds. This chapter examines the MIMO technology and developments over the recent past as well as the upcoming integration into new mobile technologies, approaching its success, categorizing, and synthesizing the potential of technology.
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Willey, Robert. "Musique Concrète Étude (Intermediate)." In The Music Technology Cookbook, 111–14. Oxford University Press, 2020. http://dx.doi.org/10.1093/oso/9780197523889.003.0017.

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This chapter describes a lesson in which students create a one-minute piece of electronic music by editing, looping, reversing, changing pitch, changing speed, and spatializing a recording of a noninstrumental sound. This compositional activity was designed for first-year college music composition and audio production majors. First, this activity will help students learn to use a microphone to record their owns sounds and/or download open source material. Second, without the need to have experience with notation, melody, and harmony, this lesson allows students to engage with fundamental issues that composers face and can broaden their concept of what constitutes a piece of music.
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Hu, Wen-Chen, Yanjun Zuo, Lei Chen, and Chyuan-Huei Thomas Yang. "Adaptive Mobile Web Browsing Using Web Mining Technologies." In Business Web Strategy, 198–207. IGI Global, 2009. http://dx.doi.org/10.4018/978-1-60566-024-0.ch010.

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Using mobile handheld devices such as smart cellular phones and personal digital assistants (PDAs) to browse the mobile Internet is a trend of Web browsing. However, the small screens of handheld devices and slow mobile data transmission make the mobile Web browsing awkward. This research applies Web usage mining technologies to adaptive Web viewing for handheld devices. Web usage mining is the application of data mining techniques to the usage logs of large Web data repositories in order to produce results that can be applied to many practical subjects, such as improving Web sites/pages. A Web usage mining system must be able to perform five major functions: (i) usage data gathering, (ii) data preparation, (iii) navigation pattern discovery, (iv) pattern analysis and visualization, and (v) pattern applications. This approach improves the readability and download speed of mobile Web pages.
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Haider, Syed Ali, M. Yasin Akhtar Raja, and Khurram Kazi. "Communication Infrastructures in Access Networks." In Cloud Technology, 943–69. IGI Global, 2015. http://dx.doi.org/10.4018/978-1-4666-6539-2.ch044.

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Access networks are usually termed “last-mile/first-mile” networks since they connect the end user with the metro-edge network (or the exchange). This connectivity is often at data rates that are significantly slower than the data rates available at metro and core networks. Metro networks span large cities and core networks connect cities or bigger regions together by forming a backbone network on which traffic from an entire city is transported. With the industry achieving up to 400 Gbps of data rates at core networks (and increasing those rates [Reading, 2013]), it is critical to have high-speed access networks that can cope with the tremendous bandwidth opportunity and not act as a bottleneck. The opportunity lies in enabling services that can be of benefit to the consumers as well as large organizations. For instance, moving institutional/personal data to the cloud will require a high-speed access network that can overcome delays incurred during upload and download of information. Cloud-based services, such as computing and storage services are further enhanced with the availability of such high-speed access networks. Access networks have evolved over time and the industry is constantly looking for ways to improve their capacity. Therefore, an understanding of the fundamental technologies involved in wired and wireless access networks will help the reader appreciate the full potential of the cloud and cloud access. Against the same backdrop, this chapter aims at providing an understanding of the evolution of access technologies that enable the tremendous mobility potential of cloud-based services in the contemporary cloud paradigm.
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Fyrst, Valentin E. "Information at the speed of thought." In The Revolution Will Not Be Downloaded, 201–3. Elsevier, 2008. http://dx.doi.org/10.1016/b978-1-84334-459-9.50015-3.

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Kwok, Sai Ho. "DRM Technology for Mobile Multimedia." In Encyclopedia of Information Science and Technology, First Edition, 918–23. IGI Global, 2005. http://dx.doi.org/10.4018/978-1-59140-553-5.ch161.

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Mobile multimedia has been promoted as a promising service and application in mobile e-commerce (m-commerce) by many mobile operators and mobile service providers, when high-speed mobile networks are expected to take off in the near future. However, at present, mobile multimedia is still in its infancy, accessed by relatively low-end mobile devices with limited bandwidth and resources. A typical example is Orange in Hong Kong which launched a low-grade multimedia service in 2000 to test the market with current mobile technologies. Due to the physical constraints of a 2.5G mobile network, audio broadcast is the best service that the network can offer up to date. However, in the near future, when advanced mobile networks and technologies become available, higher demands will be placed on the quality of mobile multimedia services. Such services support both audio and video data, for example, video conferencing, music video, video-on-demand and so on. Rights management deserves more serious concern because intellectual property of distributed multimedia content is as valuable as a company’s physical assets (Doherty, 2002). This will become even more important when mobile multimedia services become marketable and an essential part of the business. The purpose of a digital rights management (DRM) system is to allow owners of digital assets (movies, songs) to distribute their products/services/contents electronically in a controlled way (Peinado, 2002). DRM technology makes various online payment schemes possible, such as pay-per-view, pay-per-download, pay-per-game and so on. Hence, mobile service providers are able to control end users’ use of, and accessibility to, their products, and stand to gain huge profits from this capability with the DRM technology (Foroughi, Albin, & Gillard, 2002). A successful DRM system should address both business and technical issues (Grab, 2002), but this chapter only addresses and presents issues in the technical side due to the nature of this book. We present some critical issues of mobile DRM for mobile multimedia. A proposal of mobile DRM framework is presented to meet the urgent DRM needs with the existing 2.5G mobile technology. This chapter is concluded by presenting future directions of mobile DRM for mobile multimedia.
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Akhtar, Shakil. "Evolution of Technologies, Standards, and Deployment of 2G-5G Networks." In Encyclopedia of Multimedia Technology and Networking, Second Edition, 522–32. IGI Global, 2009. http://dx.doi.org/10.4018/978-1-60566-014-1.ch070.

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The fourth and fifth generation wireless mobile systems, commonly known as 4G and 5G, are expected to provide global roaming across different types of wireless and mobile networks, for instance, from satellite to mobile networks and to Wireless Local Area Networks (WLANs). 4G is an all IP-based mobile network using different radio access technologies providing seamless roaming and providing connection always via the best available network [1]. The vision of 4G wireless/mobile systems is the provision of broadband access, seamless global roaming, and Internet/data/voice everywhere, utilizing for each the most “appropriate” always best connected technology [2]. These systems are about integrating terminals, networks, and applications to satisfy increasing user demands ([3], [4]). 4G systems are expected to offer a speed of over 100 Mbps in stationary mode and an average of 20 Mbps for mobile stations reducing the download time of graphics and multimedia components by more than 10 times compared to currently available 2 Mbps on 3G systems. The fifth generation communication system is envisioned as the real wireless network, capable of supporting wireless world wide web (wwww) applications in 2010 to 2015 time frame. There are two views of 5G systems: evolutionary and revolutionary. In the evolutionary view the 5G (or beyond 4G) systems will be capable of supporting wwww allowing a highly flexible network such as a Dynamic Adhoc Wireless Network (DAWN). In this view advanced technologies including intelligent antenna and flexible modulation are keys to optimize the adhoc wireless networks. In revolutionary view 5G systems should be an intelligent technology capable of interconnecting the entire world without limits. An example application could be a robot with built-in wireless communication with artificial intelligence. The 4G system is still predominantly a research and development initiative based upon 3G, which is struggling to meet its performance goals. The challenges for development of 4G systems depend upon the evolution of different underlying technologies, standards, and deployment. We present an overall vision of the 4G features, framework, and integration of mobile communication. First we explain the evolutionary process from 2G to 5G in light of used technologies and business demands. Next we discuss the architectural developments for 2G-5G systems, followed by the discussion on standards and services. Finally we address the market demands and discuss the development of terminals for these systems.
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Curran, Kevin, and Noel Broderick. "Prevalent Factors Involved in Delays Associated with Page Downloads." In Business Data Communications and Networking, 55–67. IGI Global, 2007. http://dx.doi.org/10.4018/978-1-59904-274-9.ch003.

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Over the years the number of Web users has increased dramatically unfortunately leading to the inherent problem of congestion. This can affect each user’s surfing experience. A large percentage of sites use a combination of text and image-heavy design with the use of images contributing heavily to slow-loading sites. Studies have shown that surfers spend a lot of time impatiently waiting for pages to emerge on screen and HCI guidelines indicate 10 seconds as the maximum response time before users lose interest. This chapter presents research into the observed usage of images by academic institutions and the effects on page retrieval times.
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Perzanowski, Aaron, and Jason Schultz. "Copies, Clouds, and Streams." In The End of Ownership. The MIT Press, 2016. http://dx.doi.org/10.7551/mitpress/9780262035019.003.0003.

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This chapter outlines three major transformations in how consumers acquire copyrighted content, and the gradual erosion of ownership rights that accompanied them. Historically, copyrighted works were distributed through tangible copies. In the early 2000s, the first transformation took place through the rise of digital downloads. Second, remote cloud storage allowed consumers to access remote copies through high-speed data connections. The third major shift, to subscription streaming services, is now underway. With each step in this progression, consumers have sacrificed permanence and stability for lower prices and convenience. More importantly, copyright law has failed to keep up with the development of these new technologies. Copyright law has focused on the copy/work distinction to delineate the rights of copyright holders and consumers, but the traditional tangible copy is disappearing from the marketplace.
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Conference papers on the topic "Download speed"

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Ndili, Obianuju, and Tokunbo Ogunfunmi. "Achieving Maximum Possible Download Speed on ADSL Systems." In 2007 IEEE Workshop on Signal Processing Systems. IEEE, 2007. http://dx.doi.org/10.1109/sips.2007.4387582.

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Daengsi, Therdpong, Surachai Chatchalermpun, Prasong Praneetpolgrang, and Pongpisit Wuttidittachotti. "A Study of 4G Network Performance in Thailand Referring to Download Speed." In 2020 IEEE 10th Symposium on Computer Applications & Industrial Electronics (ISCAIE). IEEE, 2020. http://dx.doi.org/10.1109/iscaie47305.2020.9108819.

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Liu, Yi, Shinji Sakamoto, Leonard Barolli, Makoto Ikeda, and Fatos Xhafa. "Evaluation of Peers Trustworthiness for JXTA-overlay Considering Data Download Speed, Local Score and Security Parameters." In 2015 18th International Conference on Network-Based Information Systems (NBiS). IEEE, 2015. http://dx.doi.org/10.1109/nbis.2015.98.

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W. L. Fong, Michelle. "Music in Cyberspace." In InSITE 2004: Informing Science + IT Education Conference. Informing Science Institute, 2004. http://dx.doi.org/10.28945/2831.

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The music scene in cyberspace is an example of how a legal framework has been developed to curb online copyright infringement. The emergence, in the mid-1990’s, of online music websites and software programs such as MP3 technology to compress and download music, have delivered considerable copyright threat to the music industry. This threat has been further exacerbated by the remarkable development of technological innovations, such as high-speed broadband Internet connection and affordable CD burners, which are capable of delivering fast download and reasonably good audio and visual quality. This emerging information technology has made reproducing and sharing the work of others extremely easy, and has caused great concern for the music industry. This paper traces the evolution of the digital music scene in cyberspace and describes the attempts of the US and Australian music trade groups in putting an end to music piracy in cyberspace.
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Liu, Yi, Oda Tetsuya, Evjola Spaho, Keita Matsuo, Leonard Barolli, and Fatos Xhafa. "A Fuzzy-Based Reliaility for JXTA-overlay P2P Platform Considering Data Download Speed, Peer Congestion Situation, Number of Interaction and Packet Loss Parameters." In 2016 19th International Conference on Network-Based Information Systems (NBiS). IEEE, 2016. http://dx.doi.org/10.1109/nbis.2016.27.

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Wongputorn, Patompong, David A. Hullender, and Robert L. Woods. "Rational Polynomial Transfer Function Approximations for Fluid Transients in Lines." In ASME/JSME 2003 4th Joint Fluids Summer Engineering Conference. ASMEDC, 2003. http://dx.doi.org/10.1115/fedsm2003-45247.

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This paper introduces a simple approach utilizing MATLAB® computational tools for generating rational polynomial transfer functions for fluid transients in both liquid and gas fluid transmission lines. These transfer functions are obtained by curve fitting in the frequency domain the exact solution to the distributed parameter laminar flow “Dissipative Model” for fluid transients that includes nonlinear frequency dependent viscous friction terms as well as heat transfer effects in gas lines. These transfer functions are formulated so they are applicable to arbitrary line terminations and so they can be inserted directly into SIMULINK® models for time domain simulation and analysis of a total system of which the fluid lines are only internal components. The inputs to the algorithm are the internal radius and length of the line; the kinematic viscosity, density, Prandtl number, and speed of sound of the fluid; and the maximum frequency to which an accurate curve fit of the exact solution is desired. This maximum frequency normally is equal to or greater than the bandwidth of the other components in the total system to be analyzed or the maximum frequency associated with the input. The simplicity of use and accuracy in the results of the exact solution representations are demonstrated for examples of a blocked fluid line and of a line terminating into a tank. The computational algorithms are available for download from the Author’s web site. This is the first of two papers pertaining to transfer functions for fluid transients. The second paper pertains to formulating simulation diagrams for total systems containing fluid lines represented by rational polynomial transfer functions.
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Akselrod, Mark, Nico Becker, Markus Fidler, and Ralf Luebben. "4G LTE on the Road - What Impacts Download Speeds Most?" In 2017 IEEE 86th Vehicular Technology Conference (VTC-Fall). IEEE, 2017. http://dx.doi.org/10.1109/vtcfall.2017.8288296.

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Du, Xiaoxu, and Huan Wang. "Analysis of Hydrodynamic Characteristics in the Process of Autonomous Underwater Vehicle Docking." In ASME 2015 34th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/omae2015-42323.

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The successful operation of an Autonomous Underwater Vehicle (AUV) requires the capability to return to a dock. A number of underwater docking technologies have been proposed and tested in the past. The docking allows the AUV to recharge its batteries, download data and upload new instructions, which is helpful to improve the working time and efficiency. During the underwater docking process, unsteady hydrodynamic interference occurs between the docking device and an AUV. To ensure a successful docking, it is very important that the underwater docking hydrodynamics of AUV is understood. In this paper, numerical simulations based on the computational fluid dynamics (CFD) solutions were carried out for a 1.85m long AUV with maximum 0.2 m in diameter during the docking process. The two-dimensional AUV model without fin and rudder was used in the simulation. The mathematical model based on the Reynolds-averaged Navier-Stokes (RANS) equations was established. The finite volume method (FVM) and the dynamic structured mesh technique were used. SIMPLE algorithm and the k-ε turbulence model in the Descartes coordinates were also adopted. The hydrodynamics characteristics of different docking states were analyzed, such as the different docking velocity, the docking device including baffle or not. The drag coefficients of AUV in the process of docking were computed for various docking conditions, i.e., the AUV moving into the docking in the speed of 1m/s, 2m/s, 5m/s. The results indicate that the drag coefficient increases slowly in the process of AUV getting close to the docking device. When the AUV moves into the docking device, the drag coefficient increases rapidly. Then the drag coefficient decreases rapidly. The drag coefficient decreases with the increase of velocity when AUV enters the docking device. It was also found that the drag coefficient can be effectively reduced by dislodging the baffle of docking device.
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9

Ribeiro, Robison T., Marcio Single, and Reinaldo F. Sima. "Handheld PC Used in Field Maintenance of the GASBOL Pipeline: A Case Study." In 2004 International Pipeline Conference. ASMEDC, 2004. http://dx.doi.org/10.1115/ipc2004-0273.

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One of the most important challenges in maintenance and integrity is the correct register of maintenance data. Information about failures, diagnostics and services execution are extremely important for the background history of equipments and future analysis. Field personnel usually supply the information in the CMMS (Computerized Maintenance Management System) in the form of few words (or key words) written in a notepad, agenda or at the backside of a maintenance work order. Therefore, most of the time the quality of data is very low, registries are very poor, information is generic and does not add value to the background history of equipment. Sometimes these data are not really true; they are only remembrances from the maintenance worker’s memory. In natural gas pipeline companies, like TBG, with large extensions of pipes and installations distributed so far from each other it is usual that maintenance personnel go to the field job and sometimes do not come back to the office at the same day. In addition, the need to access the corporate network to input maintenance data in the Maintenance Module of Enterprise Resource Planning means that maintenance registries are something that do not flow easily from field to database. Technicians also spend a lot of time in front of the computer decreasing their productive working hours. Being aware of the importance of data to a consistent integrity pipeline program and to solve the problems related above, TBG implemented Maintenance in the Palm of the Hand project and distributed handheld PCs to all technicians, with software that works like an electronic maintenance work order. This system permits to collect maintenance data in real time (timesheet, measurements and information about the job and related problems) and also providing important information to help technicians perform their jobs (equipment data, set points and task list). If necessary, they can start a maintenance request. At any moment it is possible to connect to the corporate network and download data to CMMS. This project allowed TBG to increase quality and reliability of maintenance data and speed of information flow from field to CMMS, eliminating the need to print work orders and data sheets, increasing the productivity of technicians and reducing the time spent on boring tasks such as taking notes.
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Karalus, Megan F., K. Boyd Fackler, Igor V. Novosselov, John C. Kramlich, and Philip C. Malte. "A Skeletal Mechanism for the Reactive Flow Simulation of Methane Combustion." In ASME Turbo Expo 2013: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/gt2013-95904.

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A skeletal mechanism for the prediction of NOx emissions from methane combustion at gas turbine conditions is developed in the present work. The goal is a mechanism that can be used in computational fluid dynamic modeling of lean premixed (LPM) combustors. A database of solutions from 0-D, adiabatic, homogeneous reactors (PSRs) is computed using CHEMKINPRO [1] over a parameter space chosen to include pressures from 1 to 30 atm, equivalence ratios from 0.4 to 1.0, and mean PSR residence times from slightly greater than blowout to 3ms. A resisidence time of 3 ms represents a useful maximum for the super-equilibrium flame zone where most of the NOx forms in LPM combustors. Fuel oxidation and NOx formation are treated separately in the reduction process. The method of Directed Relation Graph (DRG) is applied for methane oxidation and its extension, DRG-aided sensitivity analysis (DRGASA), is used to determine the skeletal NOx mechanism to append to the methane mechanism. Post-processing of the PSR solution database and implementation of the reduction algorithm are accomplished in SAGE [2], a Python based, open-source mathematics software package. The skeletal oxidation and NOx mechanisms are validated against full GRI 3.0 [3] in both PSR and laminar flame speed calculations. When compared with the detailed GRI 3.0 mechanism, NOx emissions are predicted within 7% near blowout and 3% at 3ms, and laminar flame speeds are predicted within 20% over the range of equivalence ratios and pressures. The skeletal mechanism is presented here and it should be noted that all reactions of the H2/CO submechanism are retained. The skeletal mechanism consists of 22 species and 122 reactions for methane oxidation and an additional 8 species and 55 reactions to describe NOx formation (30 species, 177 reactions total). The final skeletal mechanism with NOx chemistry is available for download here [4]. To demonstrate the predictive capability of the validated mechanism in a reactive flow system, it is implemented in an ANSYS Fluent model of a single jet stirred reactor, the results of which are compared to experimental reactor data presented in [5] and [6]. Predicted and measured profiles of temperature and NOx emissions are shown. Temperature and NOx emissions compare well in the recirculation zone of the JSR, although both NOx emissions and temperature are under-predicted in the jet region. Finally, the contribution of each chemical pathway for NOx formation is evaluated.
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Reports on the topic "Download speed"

1

Vélez-Velásquez, Juan Sebastián. Banning Price Discrimination under Imperfect Competition: Evidence from Colombia's Broadband. Banco de la República de Colombia, December 2020. http://dx.doi.org/10.32468/be.1148.

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Economic theory is inconclusive regarding the effects of banning third-degree price discrimination under imperfect competition because they depend on how the competing firms rank their market segments. When, relative to uniform pricing, all competitors want higher prices in the same market segments, a ban on price discrimination will reduce profits and benefit some consumers at the expense of others. If, instead, some firms want to charge higher prices in segments where their competitors want to charge lower prices, price discrimination increases competition driving all prices down. In this case, forcing the firms to charge uniform prices can increase their profits and reduce consumer surplus. We use data on Colombian broadband subscriptions to estimate the demand for internet services. Estimated preferences and assumptions about competition are used to simulate a scenario in which firms lose their ability to price discriminate. Our results show large effects on consumer surplus and large effects on firms’ profits. Aggregate profits increase but the effects for individual firms are heterogeneous. The effects on consumer welfare vary by city. In most cities, a uniform price regime causes large welfare transfers from low-income households towards high-income households and in a few cities, prices in all segments rise. Poorer households respond to the increase in prices by subscribing to internet plans with slower download speed.
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