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Media Control Channel Framework (CFW) Call Flow Examples
Published in Radhika Ranjan Roy, Handbook on Networked Multipoint Multimedia Conferencing and Multistream Immersive Telepresence using SIP, 2020
Let us also assume that AS1 has created a conference mix (confid=74b6d62) to which it has attached some participants within the context of its business logic, while AS2 has created a currently active IVR dialog (dialogid=dfg3252) with a user agent it is handling (237430727:a338e95f). AS2 has also joined two connections to each other (1:75d4dd0d and 1:b9e6a659). Clearly, it is highly desirable that AS1 not be aware of what AS2 is doing with the MS, and vice versa, and that they not be allowed to manipulate each other’s resources. The following transactions will occur: AS1 places a generic audit request to both the Mixer and IVR packages.AS2 places a generic audit request to both the Mixer and IVR packages.AS1 tries to terminate the dialog created by AS2 (6791fee).AS2 tries to join a user agent it handles (1:272e9c05) to the conference mix created by AS1 (74b6d62).
Routing in Delay and Disruption Tolerant Networks
Published in Aloizio Pereira da Silva, Scott Burleigh, Katia Obraczka, Delay and Disruption Tolerant Networks, 2019
Aloizio P. Silva, Scott Burleigh, Katia Obraczka
To address scalability and administrative decentralization, Internet routing is based on a two-level hierarchy, where routers under the same administative authority are organized as an independent Autonomous System, or AS as illustrated in Figure 5.1, which shows three ASes, namely AS1, AS2, and AS3. Each AS establishes its own internal routing policies and selects its internal routing protocol independently from other ASes. The AS’s Internal Routers, or IRs (shown in blue in Figure 5.1) are responsible for routing within the AS, also known as intra-AS routing which is carried out using interior gateway protocols (IGPs). Some routers within an AS are designated as Border Routers, or BRs (shown in red in Figure 5.1) and are responsible for inter-AS routing which are carried out using exterior gateway protocols (EGPs). As illustrated in Figure 5.1, communication between AS1 and AS2 goes over the green link connecting BR1-AS1 and BR1-AS2.
IT usage in construction and other industries
Published in Ray Crotty, The Impact of Building Information Modelling, 2013
The standardisation of business data exchanges began in the early 1980s with the publication by the American National Standards Institute (ANSI) of the X12 standard, and internationally by UN/EDIFACT. X12 and EDIFACT are nothing more than very precise specifications of a wide range of standard business documents such as purchase orders, goods received notices, invoices and such like. So they describe the content and precise format of business messages. They say nothing about the communications medium or the communications protocols to be used. So X12 and EDIFACT messages can be transferred by dial-up modem, by e-mail, or by FTP for example. Value added networks (VANs), operated by firms like GE and IBM, dominated the early message-handling industry. As the internet has grown, web-based services have come to the fore, with messages, sometimes embedded in XML, being transported using secure web protocols such as AS2 and HTTPS.
Structuring an influential model for Indonesian pulp and paper circular supply chain practices
Published in International Journal of Logistics Research and Applications, 2021
Kuo-Jui Wu, Harvin Theja, Ignatius Vincent, Cheryl Poerwanto, Earvin Rosario, Roberto Daniel Ferreira, Supitchar Tatiyathavornkul
The analytical results reveal that an influential model enables CSCP performance improvements by taking four structured aspects into account. These four structured aspects are production reconfigurations (AS1), awareness and engagement (AS2), 3R practices (AS3) and stakeholder synchronization (AS4). This study is quite different from previous research that proposed using economic, environmental and social goals as well as taking proactive stakeholder management, long-term perspectives, resources, production, consumption, waste and recycling into account to reach the circular level (Geissdoerfer et al. 2018; Vegter, van Hillegersberg, and Olthaar 2020). In particular, awareness and engagement possess significant influences on other aspects, which is still lacking in discussions from previous studies. Moreover, such an influential model has rarely been discussed in previous studies.
Multi-directional shearography based on multiplexed Mach–Zehnder interference system
Published in Journal of Modern Optics, 2020
Shimin Zhong, Fangyuan Sun, Shuangle Wu, Fengqing Bao, Yonghong Wang
The carrier frequency is introduced by the misalignment of aperture stops AS1, AS2, and AS3. Figure 2 shows the location of the three apertures when they are mapped to the same optical plane. Planes and represent the aperture stop and CCD planes, respectively. Line is the optical axis in the system. The centres of the three aperture stops are set in a deviation from the position of point . These deviations introduce angle , where between the three lights. These angles are the carrier frequency angles, which cause the spectrum shifting of shearograms.
A New Method for Generating Aftershock Records Using Artificial Neural Network
Published in Journal of Earthquake Engineering, 2022
Vahid Vahedian, Ehsan Omranian, Gholamreza Abdollahzadeh
Using the wavelet method, three artificial accelerograms were generated. The acceleration spectrum of these three accelerograms (AS1, AS2, and AS3), along with the target spectrum (AS target), extracted from the neural network, was compared (Fig. 8). As it is seen, the conformity between the obtained spectrum and the target spectrum is fully satisfactory. These artificial accelerograms and also real record are presented in (Figs. 9a–d).