scholarly journals QUIC transmission protocol: Test-bed design, implementation and experimental evaluation

2021 ◽  
Vol 72 (1) ◽  
pp. 20-28
Author(s):  
Ala’ Khalifeh ◽  
Ma’moun Mansour ◽  
Sahel Alouneh
Keyword(s):  
Transmission Protocol ◽  
Test Bed ◽  
Web Based ◽  
Protocol Performance ◽  
Bandwidth Limitation ◽  
Potential Alternative ◽  
Internet Environment ◽  
Increasing Demand ◽  
Internet Connections ◽  
Protocol Test

Abstract With the ever increasing demand for higher speed internet connectivity that can fulfil the application continuous need for higher bandwidth Google being the pioneer in many web-based services has launched a new UDP-based protocol named quick UDP internet connections (QUIC), which aims at providing faster data delivery without requiring upgrades or modifications to the network infrastructure. The goal of this paper is to provide an overview about QUIC protocol, propose the design and implementation of a test-bed, that is used experimentally to evaluate QUIC protocol under different network conditions and scenarios. In particular, the performance advantage of QUIC in terms of delay and throughput are examined taking into account different network conditions that resemble the real internet environment. Two scenarios are proposed, the first one investigates the protocol performance under a controlled network environment, while the second one tests the protocol in a real uncontrolled network. To achieve that, a test-bed is proposed and implemented that emulates the network impairments encountered in real-network such as packet loss, bit errors, and bandwidth limitation in a controlled manner. After that, QUIC is tested in real operational wired and wireless networks. In both scenarios, QUIC outperforms TCP in terms of delay, which strengthens QUIC position for being a potential alternative to TCP.

scholarly journals Education as a key to promoting insects as food

2021 ◽  
Vol 7 (6) ◽  
pp. 949-953
Author(s):  
B.A. Rumpold ◽  
A. van Huis
Keyword(s):  
General Education ◽  
Tertiary Education ◽  
Environmental Benefits ◽  
Edible Insects ◽  
Skilled Workers ◽  
Educational Materials ◽  
Potential Alternative ◽  
Increasing Demand ◽  
Insects As Food ◽  
Production Industry

Children in tropical countries have always eaten insects but are now often discouraged from doing so. Recently, the idea of the consumption of insects has been re-introduced as an answer to malnutrition since edible insects are a potential alternative and sustainable protein and food source. However, in countries where the consumption of insects is not traditional, there is a lack of acceptance as well as skills when it comes to preparing a meal with insects. Examples of experiments from different parts of the world are given, where children in schools are educated about the nutritional and environmental benefits of eating insects. In general, after the experience, children are more positive about the idea of eating insects. It is stipulated that insects as food could be a very good entry point for the discussion about our future food supply. Furthermore, with the increasing commercial production of edible insects, there is an increasing demand for skilled workers in the insect production industry. Essential to the promotion of insect consumption are the development of curricula and educational materials for vocational education, training of insect farmers, and general education in primary and secondary schools as well as tertiary education.

A Formal Approach for Securing XML Document

2010 ◽  
Vol 1 (1) ◽  
pp. 41-53
Author(s):  
Yun Bai
Keyword(s):  
High Level Language ◽  
Security Issue ◽  
Formal Approach ◽  
Web Based ◽  
Protection Mechanism ◽  
Xml Documents ◽  
Web Document ◽  
Xml Document ◽  
Increasing Demand ◽  
High Level

With the ever increasing demand for the Web-based applications over the Internet, the related security issue has become a great concern. Web document security has been studied by many researchers and various security mechanisms have been proposed. The aim of this article is to investigate the security issue of the XML documents. We discuss a protection mechanism and investigate a formal approach to ensure the security of Web-based XML documents. Our approach starts by introducing a high level language to specify an XML document and its protection authorizations. We also discuss and investigate the syntax and semantics of the language. The flexible and powerful access control specification can effectively protect the documents from unauthorized attempts.

E-Participation Behavioral in E-Government in Malaysia

2015 ◽  
pp. 1490-1505 ◽  
Author(s):  
Maslin Masrom ◽  
Edith Lim Ai Ling ◽  
Sabariyah Din
Keyword(s):  
Information And Communication Technologies ◽  
Communication Technologies ◽  
Electronic Government ◽  
Successful Implementation ◽  
Developed Country ◽  
Web Based ◽  
Government Services ◽  
Information And Communication ◽  
The Government ◽  
Increasing Demand

Electronic government or e-government provides great potential for citizens and governments to reduce information cost and maximize the speed of government-citizen interaction. Nearly all governments around the world use Web-based technologies to provide their citizens with access to government services, and to enhance the chances for e-participation in democratic institutions and processes. In Malaysia, the e-government implementation started in 1997 with the aim to deliver services and information effectively and efficiently, and to achieve a fully developed country in the year 2020. Nowadays, many governments of developing country have utilized Information and Communication Technology (ICT) to deliver their services to citizens, and there is also an increasing demand for successful implementation of e-government services within developing nations. It is therefore essential that citizens must be able to use the Information and Communication Technologies (ICT) in order to assure nation-wide e-participation besides improving channels and contents of public service deliveries on the part of the government. In view of this, the aims of this chapter are to present the current state of e-government in Malaysia, to discuss participation behavioral in the implementation of e-government services, and to highlight approaches that can be considered in enhancing the e-government services through this participation behavioral.

Web-Based Teaching

2000 ◽  
pp. 33-41
Author(s):  
Dushyanthi Hoole ◽  
S. Ratnajeevan H. Hoole
Keyword(s):  
Third World ◽  
The West ◽  
Web Based ◽  
The Third ◽  
The Subject ◽  
The Difference ◽  
Internet Connections ◽  
The Third World ◽  
Industrialised Countries ◽  
The Web

The use of educational technologies is widely recognised as beneficial (IEEE, 1998; Hoole, 1988). However, cogent arguments have been made by those who have invested much time in the development of courseware for teaching (Hoberg, 1993; Vanderplaats, 1993) that the use of the technology dominates the class so much that the subject being taught tends to get lost. In this milieu, the appearance of the Internet and the Web, and following that, Web-based teaching, offers new opportunities with caution as a caveat. Unlike courseware where an individual instructor sits down and writes programs for his class, the difference with the Web is that demands in terms of infrastructure are heavy. Not only that, while in the West, things such as a networked campus, Internet connections, etc. are taken for granted, in the Third World (defined for the purposes of this article as those countries that are not a part of North America, Europe, Australia and the newly industrialised countries of Asia such as Singapore, Japan, Korea, and Taiwan), these facilities are rare. Simply asking for all the relevant infrastructure one needs for teaching will often not produce the funds. As a result, Third World instructors wishing to embark on Web-based teaching must create a wide demand based on needs that go beyond simply teaching for these facilities and, thereby try to get what they want. They must also improvise and produce new ways of teaching with the Web. This chapter spells out the attempts by the authors, still experimental, in producing new ways of teaching with the Web and the attempts by which an infrastructure for Web-based teaching was created at the Open University of Sri Lanka.

EUROVOLC Virtual Access to computational tools at INGV Pisa

2020 ◽  
Author(s):  
Mattia de’ Michieli Vitturi ◽  
Francesco Martinelli ◽  
Matteo Cerminara ◽  
Chiara Paola Montagna ◽  
Tomaso Esposti Ongaro ◽  
...  
Keyword(s):  
Volcanic Eruptions ◽  
Intermediate Level ◽  
Magma Ascent ◽  
Large Set ◽  
Pyroclastic Density Currents ◽  
Density Currents ◽  
Computational Tools ◽  
Web Based ◽  
Kinematic Modelling ◽  
Increasing Demand

<p>While computational capabilities in volcano science are developing to progressively higher sophistication levels involving HPC, parallel programming, and extensive use of super-computers, there is an increasing demand for accessibility to low to intermediate-level models and codes that can support multi-disciplinary research carried out by experts other than physical modelers and code developers. Responding to such a need by the international community is the justification and objective of Virtual Access (VA) activities developed under the EUROVOLC project. The Volcano Dynamics Computational Centre (VDCC) at INGV Pisa is renown as one international leader in physical-mathematical modelling and numerical simulation of volcanic thermo-fluid dynamics processes occurring from the deep regions of magma rise and accumulation within the crust, to within the atmosphere during volcanic eruptions. VDCC has been developing a large set of computational tools during last 30 years, that are offered under EUROVOLC for Transnational Access (for the most sophisticated, computational demanding models and codes) as well as for VA for low to intermediate-level models and codes. The latter include from non-ideal, compositional-dependent, multi-component volatile-melt thermodynamics to steady-state magma ascent to fast-performing kinematic modelling of pyroclastic density currents. Here we illustrate the model capabilities, the procedures to both download the codes and perform web-based computation, and a few relevant examples of calculations available through VA, and show relevant statistics of access and download by the volcano community to-date.</p>

scholarly journals Multi‐user Internet environment for gear design optimization

2003 ◽  
Vol 14 (6) ◽  
pp. 498-507 ◽  
Author(s):  
Daizhong Su ◽  
Shuyan Ji ◽  
Nariman Amin ◽  
J.B. Hull
Keyword(s):  
Genetic Algorithm ◽  
Design Optimization ◽  
Software Package ◽  
The Internet ◽  
Web Based ◽  
Helical Gears ◽  
Gear Design ◽  
Large Size ◽  
Internet Environment ◽  
Http Protocol

A Web‐based multi‐user system has been developed to remotely execute a large size software package via the Internet. The software implements a genetic algorithm to optimize the design of spur and helical gears. To accomplish this, a combination of HTML, Java servlets, Java applets, Java Script and HTTP protocol has been employed.

scholarly journals Application of Blockchain Technology in Dynamic Resource Management of Next Generation Networks

Information ◽  
2020 ◽  
Vol 11 (12) ◽  
pp. 570
Author(s):  
Michael Xevgenis ◽  
Dimitrios G. Kogias ◽  
Panagiotis Karkazis ◽  
Helen C. Leligou ◽  
Charalampos Patrikakis
Keyword(s):  
Network Function Virtualization ◽  
Statistical Multiplexing ◽  
Test Bed ◽  
Network Function ◽  
Blockchain Technology ◽  
Dynamic Resource Management ◽  
Dynamic Resource ◽  
Increasing Demand ◽  
Performance Results

With the advent of Software Defined Networking (SDN) and Network Function Virtualization (NFV) technologies, the networking infrastructures are becoming increasingly agile in their attempts to offer the quality of services needed by the users, maximizing the efficiency of infrastructure utilization. This in essence mandates the statistical multiplexing of demands across the infrastructures of different Network Providers (NPs), which would allow them to cope with the increasing demand, upgrading their infrastructures at a slower pace. However, to enjoy the benefits of statistical multiplexing, a trusted authority to govern it would be required. At the same time, blockchain technology aspires to offer a solid advantage in such untrusted environments, enabling the development of decentralized solutions that ensure the integrity and immutability of the information stored in the digital ledger. To this end, in this paper, we propose a blockchain-based solution that allows NPs to trade their (processing and networking) resources. We implemented the solution in a test-bed deployed on the cloud and we present the gathered performance results, showing that a blockchain-based solution is feasible and appropriate. We also discuss further improvements and challenges.

Chatterbox Challenge as a Test-Bed for Synthetic Emotions

2010 ◽  
Vol 1 (2) ◽  
pp. 12-37 ◽  
Author(s):  
Jordi Vallverdú ◽  
Huma Shah ◽  
David Casacuberta
Keyword(s):  
Thought Experiment ◽  
Turing Test ◽  
Test Bed ◽  
Imitation Game ◽  
Industry Funding ◽  
Language Understanding ◽  
Web Based ◽  
Computing Machinery ◽  
Insight Into ◽  
Technology Comparison

Chatterbox Challenge is an annual web-based contest for artificial conversational systems, ACE. The 2010 instantiation was the tenth consecutive contest held between March and June in the 60th year following the publication of Alan Turing’s influential disquisition ‘computing machinery and intelligence’. Loosely based on Turing’s viva voca interrogator-hidden witness imitation game, a thought experiment to ascertain a machine’s capacity to respond satisfactorily to unrestricted questions, the contest provides a platform for technology comparison and evaluation. This paper provides an insight into emotion content in the entries since the 2005 Chatterbox Challenge. The authors find that synthetic textual systems, none of which are backed by academic or industry funding, are, on the whole and more than half a century since Weizenbaum’s natural language understanding experiment, little further than Eliza in terms of expressing emotion in dialogue. This may be a failure on the part of the academic AI community for ignoring the Turing test as an engineering challenge.

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