scholarly journals WebRTC - Realtime Communication for the Open Web Platform

Queue ◽  
2021 ◽  
Vol 19 (1) ◽  
pp. 77-93
Author(s):  
Niklas Blum ◽  
Serge Lachapelle ◽  
Harald Alvestrand
Keyword(s):  
High Speed ◽  
Network Access ◽  
The Past ◽  
Human Contact ◽  
High Speed Network ◽  
The World ◽  
Web Platform

In this time of pandemic, the world has turned to Internet-based, RTC (realtime communication) as never before. The number of RTC products has, over the past decade, exploded in large part because of cheaper high-speed network access and more powerful devices, but also because of an open, royalty-free platform called WebRTC. WebRTC is growing from enabling useful experiences to being essential in allowing billions to continue their work and education, and keep vital human contact during a pandemic. The opportunities and impact that lie ahead for WebRTC are intriguing indeed.

The Past of the Future of Computation

2018 ◽  
Author(s):  
James A. Anderson
Keyword(s):  
Artificial Intelligence ◽  
High Speed ◽  
The Other ◽  
Cognitive Tasks ◽  
Cognitive Tool ◽  
The Past ◽  
The World ◽  
The Future ◽  
Simple Step ◽  
A Current

Hand axes, language, and computers are tools that increase our ability to deal with the world. Computing is a cognitive tool and comes in several kinds: digital, analog, and brain-like. An analog telephone connects two telephones with a wire. Talking causes a current to flow on the wire. In a digital telephone the voltage is converted into groups of ones or zeros and sent at high speed from one telephone to the other. An analog telephone requires one simple step. A digital telephone requires several million discrete steps per second. Digital telephones work because the hardware has gotten much faster. Yet brains constructed of slow devices and using a few watts of power are competitive for many cognitive tasks. The important question is not why machines are becoming so smart but why humans are still so good. Artificial intelligence is missing something important probably based on hardware differences.

scholarly journals Application of laser scanning technology in different branches and on different stages of the lifecycle of objects

Vestnik MGSU ◽  
2016 ◽  
pp. 62-73 ◽  
Author(s):  
Nikolay Nikolaevich Alekseenko
Keyword(s):  
Spatial Planning ◽  
High Speed ◽  
Laser Scanning ◽  
Current Data ◽  
Statistical Information ◽  
Prospective Development ◽  
Innovative Methods ◽  
High Speed Network ◽  
The World ◽  
The Russian Federation

At the present time settlement, land use and resources-use systems existing on most of the territory of Russia are still poorly estimated, they are poorly adapted to contemporary economic situation and the possibilities of their efficient use are not analyzed. The majority of archive and statistical information about the territories is out of date, because in had been collected and analyzed in the end of 1980s. Such information can’t be the basis for constructing a plan of prospective development. The article is dedicated to the currency and advantages of the use of innovative methods of laser scanning for solving the problems of spatial planning, design, reconstruction and construction. Some information on the world experience of using laser scanning is offered as an exemplification of flexibility and efficiency of their use in different branches of business activity. It is suggested to implement the methods of laser scanning for the tasks of the further creation of geographic information system on the territory of the Russian Federation containing current data information. The author also gives examples of the use and the advantages of laser scanning of Baikal-Amur Mainline and Trans-Siberian areas, laser scanning of the highway “High-speed network Moscow-Kazan”, highway M-4 Don.

Asphalt in trackbed design

2020 ◽  
Author(s):  
Chrysoula Voulgari
Keyword(s):  
Parametric Analysis ◽  
High Speed ◽  
Base Layer ◽  
The Past ◽  
Traffic Loads ◽  
The World ◽  
High Speed Trains ◽  
Induced Stresses ◽  
Resistant Layer ◽  
Potential Use

<p>Conventional all granular trackbed has been in use around the world for many years, presenting good results although requiring a certain level of ongoing maintenance. Increasing traffic loads and volumes and particularly the introduction of high-speed trains in the last few decades, have resulted in the need for new approaches. To reduce train load-induced stresses in the track subgrade, one approach that has been introduced is the use of a Hot Mix Asphalt (HMA) layer as a partial or full replacement of the granular sub-ballast.</p><p>During the past few decades the use of HMA as a sub-ballast layer within the track structure has steadily increased until it has become standard practice in many countries around the world (USA, Japan, Germany, Italy etc.). The HMA mix is designed similarly to the base layer of highway pavements. Specifically, it is designed to be a medium modulus, flexible, low voids, fatigue resistant layer that will accommodate high tensile strains without cracking .</p><p>This paper provides a review of the potential use of an asphalt layer to replace the granular sub-ballast during the railway trackbed design.  A literature review of the use of asphalt in trackbed construction and a parametric analysis have been carried out to compare traditional ‘all granular’ and more recent asphalt layer solutions for different subgrade stiffnesses. </p><p>Results indicate various advantages of the use of asphalt in the trackbed; improving trackbed performance and decreasing the overall cost and environmental impact.</p>

scholarly journals Developments in GPR Based NDT for Ballastless Track of High-Speed Railways

2020 ◽  
Author(s):  
Xiaoting Xiao ◽  
Guiyun Tian ◽  
Dong Liu ◽  
Mark Robinson ◽  
Anthony Gallagher
Keyword(s):  
Concrete Structure ◽  
High Speed ◽  
Nondestructive Method ◽  
Experimental Results ◽  
Significant Challenge ◽  
The Past ◽  
Ballastless Track ◽  
The World ◽  
Network Analyser ◽  
Ground Penetrating

For the past decades, ballastless track has been developed and used successfully throughout the world. Due to the multi-layer concrete structure of a ballastless track, timely detection of problems becomes a significant challenge. Ground Penetrating Radar (GPR), as an effective nondestructive method, has been applied to ballastless track in the last ten years. This paper reviews the state-of-the-art of GPR for the ballastless track. The challenges and problems are highlighted and discussed. A Vector Network Analyser (VNA) based stepped-frequency GPR system is considered for the problems and detection requirements. The experimental results show that the proposed system can detect narrow cracks in the depth up to 50cm.

An Investigation into Permissions Requested by Mobile Banking on Android Platform

2018 ◽  
Vol 9 (2) ◽  
pp. 12-30
Author(s):  
Latifa Er-Rajy ◽  
M. Ahmed El Kiram
Keyword(s):  
Mobile Technology ◽  
High Speed ◽  
Mobile Apps ◽  
World Population ◽  
Mobile Banking ◽  
The Past ◽  
Man In The Middle ◽  
The World ◽  
User Data ◽  
Mobile Banking Applications

In the past, banking took place only inside bank rooms, which was a task for customers and bankers at the same time. But in our day, thanks to the high-speed development and growth of mobile technology, the mobile phone platform had the power to create great opportunities for customers of the physical bank due to its capabilities and coverage of the population; this can be proved by the number of mobile subscriptions that approximates the world population figures. In order to explore these opportunities, most banks have already launched their mobile apps or have redesigned the mobile version of their websites. Among the advantages of using mobile banking is that users have the ability to make banking transactions, online payments or transfers, anywhere and at any time. In this article, we investigated the danger of the permissions requested by mobile banking applications, their effects on sensitive user data and their relationship with the attack called “Man in the middle” and its different forms. We took Morocco as a case of study.

scholarly journals Marine Internet for Internetworking in Oceans: A Tutorial

2019 ◽  
Vol 11 (7) ◽  
pp. 146 ◽  
Author(s):  
Shengming Jiang
Keyword(s):  
Human Activities ◽  
Communication Systems ◽  
High Speed ◽  
Cost Effective ◽  
Weather Conditions ◽  
Internet Services ◽  
Network Access ◽  
Communication Quality ◽  
High Speed Network ◽  
Oceanic Environments

Ever-increasing human activities in oceans require handy, reliable and cost-effective high-speed network access similar to terrestrial Internet services to be available on and under water. However, terrestrial Internet cannot be extended to oceans seamlessly due to huge differences between terrestrial and oceanic environments, while satellite services are still very expensive especially for ordinary users with communication quality susceptible to weather conditions, and cannot cover underwater networks either. Therefore, marine Internet, proposed about six years ago, is the earliest scheme that tries to systematically address the internetworking issue in oceans and still in its infancy stage. This tutorial aims to introduce the principle, architecture and applications of marine Internet, along with discussion on oceanic environments for communication, currently available and under developing communication systems in oceans, as well as challenging issues necessary for further studies to foster the development of marine Internet.

scholarly journals TECHNOLOGICAL TOOLS FOR ENHANCING TEACHING AND LEARNING PROCESS

2021 ◽  
pp. 366-373
Author(s):  
Shazia Kouser ◽  
Ishfaq Majid
Keyword(s):  
Learning Process ◽  
High Speed ◽  
Teaching And Learning ◽  
Network Connectivity ◽  
The Internet ◽  
Tablet Devices ◽  
High Speed Network ◽  
The World ◽  
Technological Tools ◽  
Teaching Learning

In recent years technology has changed dramatically. Due to the increasing need and accessibility of technology, it has expanded the toolbox and provides opportunities to the teachers for using technology. Computer devices are considered to be the more powerful tools which have come in various forms. The internet helps connect those devices and can connect students in the classrooms, through schools or around the world. Now a day, there is an availability of computers and interactive boards in schools, and the schools were connected as well as to the whole world providing high-speed network connectivity. Technology present in schools in the form of tablet devices, smartphones, and laptop computers are now used as a part and parcel of the teaching-learning process. The objective of the current study is to provide information about various technological tools that help enhance the teaching and learning process. These tools can help the teachers in creating, manipulating, using and sharing information over the networks.

Materials for High Speed Circuit Boards

1987 ◽  
Vol 108 ◽  
Author(s):  
R. W. Seibold ◽  
R. T. Lamoureux ◽  
S. H. Goodman
Keyword(s):  
High Speed ◽  
Circuit Boards ◽  
The Past ◽  
Defense Systems ◽  
Hazardous Environments ◽  
Data Rates ◽  
The World

During the past five years, the computer you bought with 128 Kbytes of memory has been upgraded by the availability of 40 Mbyte storage and modems which allow instant access to databases around the world. The continuing need to perform more complex missions for modern defense systems in more hazardous environments will call for substantially higher data rates than are available today.

The on-line use of histogram data for high-speed correction and alignment of electron microscope images

1984 ◽  
Vol 42 ◽  
pp. 556-557
Author(s):  
William Krakow
Keyword(s):  
Power Spectrum ◽  
High Speed ◽  
Direct Memory Access ◽  
Digital Television ◽  
Contrast Transfer Function ◽  
The Past ◽  
High Resolution Tem ◽  
On Line ◽  
Correction Of Astigmatism ◽  
The Fourier Transform

In the past few years on-line digital television frame store devices coupled to computers have been employed to attempt to measure the microscope parameters of defocus and astigmatism. The ultimate goal of such tasks is to fully adjust the operating parameters of the microscope and obtain an optimum image for viewing in terms of its information content. The initial approach to this problem, for high resolution TEM imaging, was to obtain the power spectrum from the Fourier transform of an image, find the contrast transfer function oscillation maxima, and subsequently correct the image. This technique requires a fast computer, a direct memory access device and even an array processor to accomplish these tasks on limited size arrays in a few seconds per image. It is not clear that the power spectrum could be used for more than defocus correction since the correction of astigmatism is a formidable problem of pattern recognition.

An atomic-resolution microscope study of Al contracts on GaAs

1986 ◽  
Vol 44 ◽  
pp. 726-727
Author(s):  
Z. Liliental-Weber ◽  
C. Nelson ◽  
R. Ludeke ◽  
R. Gronsky ◽  
J. Washburn
Keyword(s):  
High Speed ◽  
Schottky Contacts ◽  
Detailed Knowledge ◽  
The Past ◽  
Semiconductor Interfaces ◽  
Deposited Metal ◽  
Microwave Applications ◽  
Free Interfaces ◽  
Potential Use

The properties of metal/semiconductor interfaces have received considerable attention over the past few years, and the Al/GaAs system is of special interest because of its potential use in high-speed logic integrated optics, and microwave applications. For such materials a detailed knowledge of the geometric and electronic structure of the interface is fundamental to an understanding of the electrical properties of the contact. It is well known that the properties of Schottky contacts are established within a few atomic layers of the deposited metal. Therefore surface contamination can play a significant role. A method for fabricating contamination-free interfaces is absolutely necessary for reproducible properties, and molecularbeam epitaxy (MBE) offers such advantages for in-situ metal deposition under UHV conditions

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