scholarly journals Concurrent asynchronous robotic subsumption using actors & promises

Author(s):  
Ratnesh Srivastav ◽  
G. C. Nandi ◽  
Rohit Shukla ◽  
Harsh Verma

Fascinated with robotics open source integrated component MARIE [1], ROS [5] and open source component PLAYER/STAGE [2], CARMEN [3] available in the eld of robotics application. We aim at developing an asynchronous concurrent robotics application based on subsumption [6] architecture using PLAYER, STAGE and already available services freely available on the internet. We used wanderer and wall follower services embedded inside an actor [10][11] and integrated these services to two dierent robots of same congurations on our promise based frame-work that provides actor as service. The two robots switch their services based on color detected (red,green,blue) during their movement in an environment asynchronously. Using actor as a service lls the gap of SOA [4] &amp; EDA [7] by providing<br />synchronous and asynchronous support for communication. We measured the performance of time taken in completion of services in promise [8] based implementation ,synchronous and asynchronous callback [9] based implementation. We developed a model to prove deadlock freeness in our integrated architecture using petrinet [15] interface composition. We have also been able to justify that component integrated on promise based framework takes less time in service completion than synchronous and asynchronous callback based services.

2016 ◽  
Vol 11 (1) ◽  
pp. 91-103
Author(s):  
Carole Cusack ◽  
David Pecotic

The occult and the internet intersect in four ways: as a static medium for information; as a space where contested information or ideological conflict may occur; as a facilitator of communication; and as a medium for esoteric practice. The last type of activity is rare, but it is intriguing, in that technology can shape and inform beliefs and practices in unanticipated ways. Online engagement with the ‘Work’, the movement produced by the Greek Armenian spiritual teacher and esotericist G. I. Gurdjieff (c. 1866-1949) and his immediate followers, is an under-researched instance of online esoteric practice. This article addresses this scholarly desideratum, bringing the theoretical approaches of online religion and digital ethnography to bear on the Gurdjieff Internet Guide (GIG) website, founded by Reijo Oksanen (b. 1942) and later maintained by Kristina Turner, who created an accompanying Facebook page. The GIG manifests a shift away from the sectarian secrecy of the ‘Foundation’ groups, founded by Jeanne de Salzmann (1889-1990) after Gurdjieff’s death to formalise and protect the content of the Work, and the limited web presence that the Foundation permits. The GIG moves towards an ecumenical ‘open source’ approach to the dissemination of Gurdjieff’s teachings rooted in independent groups founded by other first generation followers of Gurdjieff who remained outside of the Foundation. It is argued that the deregulation of the religious and spiritual marketplace of the contemporary West, coupled with the dominant role played by the Internet in disseminating information, has radically transformed the Gurdjieff tradition, collapsing hierarchies and esoteric strategies, democratizing access for seekers, and creating new ritual and teaching modes.


Author(s):  
Elly Mufida ◽  
David Wardana Agus Rahayu

The VoIP communication system at OMNI Hospital Alam Sutera uses the Elastix 2.5 server with the Centos 5.11 operating system. Elastix 2.5 by the developer has been declared End of Life. The server security system is a serious concern considering that VoIP servers can be accessed from the internet. Iptables and fail2ban applications are applications that are used to limit and counteract those who try to attack the VoIP server. One application that can be used as an open source VoIP server is the Issabel Application version 4.0. The migration process from Elastix 2.5 application to Issabel 4.0 by backing up all configurations in the Elastix 2.5 application through a web browser including the configuration of endpoints, fax, e-mail, asterisk. After the backup file is downloaded then upload the backup file to the Issabel 4.0 application then run the migration process. Adding a backup path as a failover connection is needed because the VoIP communication protocol between the OMNI Hospitals Group still uses one path so that when there is a problem in the connection path, the communication protocol will stop. The tunnel EoIP is a protocol used as a backup path between the OMNI Hospitals Group site.


2006 ◽  
Vol 40 (3) ◽  
pp. 286-295 ◽  
Author(s):  
Andrew Buxton

PurposeTo review the variety of software solutions available for putting CDS/ISIS databases on the internet. To help anyone considering which route to take.Design/methodology/approachBriefly describes the characteristics, history, origin and availability of each package. Identifies the type of skills required to implement the package and the kind of application it is suited to. Covers CDS/ISIS Unix version, JavaISIS, IsisWWW, WWWISIS Versions 3 and 5, Genisis, IAH, WWW‐ISIS, and OpenIsis.FindingsThere is no obvious single “best” solution. Several are free but may require more investment in acquiring the skills to install and configure them. The choice will depend on the user's experience with CDS/ISIS formatting language, HTML, programming languages, operating systems, open source software, and so on.Originality/valueThere is detailed documentation available for most of these packages, but little previous guidance to help potential users to distinguish and choose between them.


1970 ◽  
Vol 40 ◽  
pp. 157-173
Author(s):  
Alicja Raciniewska

The impact of the Internet and digital technologies on the contemporary fashion system is undeniable and evident in almost every aspect of its operation – in the techniques of design, material production, sales and distribution, methods of communication, consumption and, finally, the fashion education. There is no place to discuss all these areas in this article, so therefore, I will focus on the issue relatively poorly discussed in our country, which is the application of the open source philosophy in fashion. In the first part of this article the most important assumptions of the open source movement is presented. The second discusses the most important actors and practices of open source in fashion. The final part of the article is devoted to the evaluation of the analyzed phenomenon.


2021 ◽  
Vol 21 (2) ◽  
pp. 259-278
Author(s):  
Melissa Finn ◽  
Eid Mohamed ◽  
Bessma Momani

When transnationally constructed art forms, such as the works of diasporic cultural productions of Arabs in the West, are made available in open-source on a digital archive, this supports the transnational flow or exchange of citizenship-enhancing ideas, skill-sets, technologies, tools, capacities, and practices. In this theoretical investigation, we explore imagined outcomes when new audiences can engage with diasporic cultural productions of Arabs. Digital archiving of ethnically diverse cultural productions can expand civility, solidarity, and common ground among people; these latter behaviors are the ideational foundations of agency-based claims of transnational citizenship. Such cultural productions help to reconfigure the questions, opportunities, and nature of political and social agency in ways that empower diaspora communities and expand their abilities to make citizenship claims in multiple societies. This is what the Internet enables despite its tendency towards parochialism in globalized pockets. Moreover, we highlight the possibilities of open-source digital archiving—with a focus on literature, poetry, biographies, and letters—for agency-based claims of citizenship and the many caveats that require further attention and consideration.


Author(s):  
Ramanjit Singh

Wikipedia is a free encyclopedia that operates worldwide on the Internet. Articles on Wikipedia are developed with close collaboration of volunteers and anyone can edit the content (Wikipedia, 2006e). Although there are many advantages of using Wikipedia as a group collaboration tool, there are important implications. First, Wikipedia community is diverse and intercultural differences can distort the communication process. Second, the neutral point of view (NPOV) policy can lead to disputes. Third, lack of supervision and open source policy can be another source of conflict. Forth, administration of articles can be complex due to differing cultural and political stand points (Smith & Kollock, 1999). Laslty, differences in time and space as well as low level of access to the Internet can significantly impede collaboration efforts at Wikipedia (Berry, 2006; Madon, 2000; Parayil, 2006; Sahay, Nicholson, & Krishna, 2003). Hence, the aim of this paper is to examine sociocultural implications of using Wikipedia as a group collaboration tool spanning multiple countries and how social and cultural climate, differences in time and space, as well as technological infrastructure of countries affect collaboration between individuals given the distinctive operational and administration policies at Wikipedia. It is believed that findings from this research will increase the awareness of the underlying cause of many disputes arising at Wikipedia. In addition, this research will lead to cultural relativism and provide neutral grounds for collaborative efforts at Wikipedia in the future.


2010 ◽  
pp. 68-103
Author(s):  
Sylvie Albert ◽  
Don Flournoy ◽  
Rolland LeBrasseur

This chapter examines the following ideas on regulation and public policy: • Information societies are enabled by regulations and public policies that support open communications; • Government, business and public sector collaboration is key to establishing policies that lead to economic and social development; • Open source applications, products and collaborative culture are accelerated by adopting universal technical standards; • To be sustained, accessibility to the Internet and keeping it free and open requires some vigilance; • Ways must be devised to assess the local impact of policy and regulations and to provide next steps.


Author(s):  
J. Baker

One of the significant advances in software design afforded by the internet has been the open source movement, an effort to collaboratively create software and make it widely and freely available to the online community. Although the open source movement started with Unix-like computer operating systems, it has expanded to include a wide variety of software programs, including tools to publish and analyze online surveys. This article introduces the open source movement and then profiles three leading open source survey programs: php Easy Survey Package (phpESP), PHP Surveyor, and the Moodle course management system.


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