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Ferramenta de áudio conferência espacial implementando conceitos de realidade aumentada.; Spatial audio conference tool implementing augmented reality concepts.

Bulla Junior, Romeo
Fonte: Biblioteca Digitais de Teses e Dissertações da USP Publicador: Biblioteca Digitais de Teses e Dissertações da USP
Tipo: Dissertação de Mestrado Formato: application/pdf
Publicado em 29/10/2009 PT
Relevância na Pesquisa
26%
Este trabalho apresenta uma ferramenta para conferência de áudio 3D (espacial) implementando conceitos de Realidade Aumentada (RA). O objetivo desta ferramenta é aprimorar a sensação de presença e melhorar a interatividade entre seus participantes remotos, por meio de benefícios proporcionados pela utilização de técnicas de áudio espacial (implementadas em avatares de áudio) pela: maior facilidade de concentração e atenção em um único participante e pelos efeitos positivos na memorização dos conteúdos pelos participantes como conseqüência da melhor inteligibilidade e compreensão. A motivação desta implementação reside em sua utilização como ferramenta de comunicação síncrona no ambiente de aprendizagem eletrônica Tidia-Ae, auxiliando na realização de atividades colaborativas e, possivelmente, nos processos de ensino e aprendizagem à distância. A ferramenta implementada foi integrada ao sistema Tidia-Ae e os resultados dos experimentos realizados demonstraram sua efetividade com relação às melhorias proporcionadas pelo processamento de áudio espacial.; This work presents a 3D (spatial) audio conference tool implementing Augmented Reality (AR) concepts. The main intent of this tool is to enhance the sense of presence and increase the interactivity among remote participants...

Reabilitação bioclimática em edifícios de habitação de construção mista, um caso de estudo em Lisboa

Ribeiro, José Pedro Barros Sousa
Fonte: Faculdade de Arquitectura de Lisboa Publicador: Faculdade de Arquitectura de Lisboa
Tipo: Dissertação de Mestrado
Publicado em 13/07/2007 POR
Relevância na Pesquisa
16%
Mestrado em Reabilitação Bioclimática em Edifícios de Habitação de Construção Mista, um caso de estudo em Lisboa; Tese de Mestrado em Arquitectura Bioclimática; O presente estudo tem por objectivos contribuir para uma metodologia de trabalho na área de reabilitação de edifícios que incorpore princípios da arquitectura bioclimática no seu processo. São esses, a análise do contexto local, as condições climáticas, a disponibilidade e orientação solar, o desempenho energético e conforto ambiental dos edifícios, que se quer avaliar e quantificar para adoptar soluções que maximizem o seu possível aproveitamento. Desta forma pretende-se contribuir para o melhoramento da qualidade das intervenções e da qualidade ambiental dos espaços interiores, reduzindo também impactos provenientes do descurar destas questões. A metodologia desenvolvida é aplicada a um edifício representativo dos edifícios de construção mista construídos na década de 1930 a 40, em Lisboa, também conhecidos como exemplos da arquitectura Modernista Portuguesa. Procede-se ao levantamento do edifício, verificando as suas patologias, as condições ambientais dos espaços interiores, e realiza-se de um inquérito a outros edifícios do mesmo tipo...

Analyzing Toonari News & Media strategy process : assessment and recommendations

Cavalcanti, Geórgia Patrícia da Silveira Nunes
Fonte: Instituto Universitário de Lisboa Publicador: Instituto Universitário de Lisboa
Tipo: Dissertação de Mestrado
Publicado em //2012 ENG
Relevância na Pesquisa
16.15%
Mestrado em Gestão; There are many companies working in on-line environment that are underestimating the appliance of strategy concepts and procedures. This study, through the light of strategy, looks inside of Toonari News and Media. It is a for-profit news and media social enterprise start up with a strong cycle system combining maximization of profit and social-benefit through free education. The goals of the study are: analyze and rethink its strategy; understand the changes in the industry and how strategy can allow the company to compete and position itself in a highly competitive environment; understanding of no separation between business and ebusiness. The first part of the study is the literature review focused on understanding the strategic process of a company that works either in physical or virtual environment. The second part concentrates on the application of concepts and tools in Toonari. The results seem to be positive and are able to add value to the company. Findings suggest actions for different departments and look continuously into the strategy process which involves formulation, implementation and controlling stages. This is done in order to reach its goals and work aligned with its mission and vision. The study does not finish the company’s strategy analysis...

SmART: an application reconfiguration framework

Martins, João André
Fonte: FCT - UNL Publicador: FCT - UNL
Tipo: Dissertação de Mestrado
Publicado em //2009 ENG
Relevância na Pesquisa
46.76%
Dissertação apresentada na Faculdade de Ciências e Tecnologia da Universidade Nova de Lisboa para a obtenção do Grau de Mestre em Engenharia Informática.; Among the information technology sectors is the virtualization sector, which stands out by being a very active area, with many collaborations and advances. Virtualization’s benefits are plenty. Some of them are the massive server consolidation, reduced cooling, structural and electrical costs and the isolation between virtual machines. Virtual appliance is a concept resulting from the advancements on virtualization, and defines an alternative software distribution model from those existing by then, such as the traditional CD-ROM distribution, software as a service and hardware appliances. This model allows customers to have their IT solution fully specified and optimized for the task it must perform. With the virtual appliance outbreak, many servers using different applications tend to gather on the same physical machine. The applications, in turn, may implement plenty configuration formats, from widely adopted standards to proprietary formats. The configuration of these applications is typically carried by busy system administrators, who must dedicate some of their time coping such a vast configuration format range. This thesis contributes for the nourishing of the virtual appliance concept and proposes the creation of a tool which automatically configures applications inside virtual appliances...

First Person Shooter: the subjective cyberspace

Elias, Herlander
Fonte: Covilhã: LabCom Books, 2009 Publicador: Covilhã: LabCom Books, 2009
Tipo: Livro
Publicado em //2009 ENG
Relevância na Pesquisa
16%
Two decades ago videogames were just moving sprites flashing on arcade games’ screens. A decade later videogames became a common household appliance and families began playing with these electronic games. As the personal computer developed, the Internet came up. Gaming consoles turned out to be pretty much desired and affordable. Nowadays, multimedia language evolved and the mobile age of the Internet is upon us. There’s only one videogame genre enabling a new form of interaction. It’s the First Person Shooter, a videogame genre that has surpassed cyberspace visionaries’ theories and it is acclaimed worldwide due to its online gaming capabilities. The future begins here, as the FPS becomes an interface model for new media products to come. No longer is enough to see things from the outside, the user-player wants to get inside cyberspace, to become the character. In this way we prefer playing to be “there”, on the virtual ground, left to fate. Either we’re armed or outgunned, outnumbered or betrayed, but in the end, as most of the researches point out: in FPS videogames, players actually become much more space-oriented and fit for survival. The Subjective Cyberspace provided by the FPS is our new media ground, and it will inevitably surpass the borders of gaming.

TiArA: A Virtual Appliance for the Analysis of Tiling Array Data

Greenbaum, Jason A.; Assarsson, Erika; Chung, Jo L.; Head, Steven; Sette, Alessandro; Peters, Bjoern
Fonte: Public Library of Science Publicador: Public Library of Science
Tipo: Artigo de Revista Científica
Publicado em 01/04/2010 EN
Relevância na Pesquisa
26%

DCMTB: A Virtual Appliance DICOM Toolbox

Langer, Steve; Charboneau, Nick; French, Todd
Fonte: Springer-Verlag Publicador: Springer-Verlag
Tipo: Artigo de Revista Científica
EN
Relevância na Pesquisa
36.15%
Medical Imaging has been fortunate to see an avalanche of free and open source software become available in the last several years. Applications have been written to enable image viewing/storage/analysis/processing, DICOM and HL7 message parsing, results aggregation, anonymization, and more. While robust, many of these packages are difficult to install and configure. Our group desired an approach that would mitigate the efforts required to use these packages across different projects. We found such a solution in the context of using virtual machines.

Bioinformatics Pipelines for Targeted Resequencing and Whole-Exome Sequencing of Human and Mouse Genomes: A Virtual Appliance Approach for Instant Deployment

Li, Jason; Doyle, Maria A.; Saeed, Isaam; Wong, Stephen Q.; Mar, Victoria; Goode, David L.; Caramia, Franco; Doig, Ken; Ryland, Georgina L.; Thompson, Ella R.; Hunter, Sally M.; Halgamuge, Saman K.; Ellul, Jason; Dobrovic, Alexander; Campbell, Ian G.; Pap
Fonte: Public Library of Science Publicador: Public Library of Science
Tipo: Artigo de Revista Científica
Publicado em 21/04/2014 EN
Relevância na Pesquisa
46.63%
Targeted resequencing by massively parallel sequencing has become an effective and affordable way to survey small to large portions of the genome for genetic variation. Despite the rapid development in open source software for analysis of such data, the practical implementation of these tools through construction of sequencing analysis pipelines still remains a challenging and laborious activity, and a major hurdle for many small research and clinical laboratories. We developed TREVA (Targeted REsequencing Virtual Appliance), making pre-built pipelines immediately available as a virtual appliance. Based on virtual machine technologies, TREVA is a solution for rapid and efficient deployment of complex bioinformatics pipelines to laboratories of all sizes, enabling reproducible results. The analyses that are supported in TREVA include: somatic and germline single-nucleotide and insertion/deletion variant calling, copy number analysis, and cohort-based analyses such as pathway and significantly mutated genes analyses. TREVA is flexible and easy to use, and can be customised by Linux-based extensions if required. TREVA can also be deployed on the cloud (cloud computing), enabling instant access without investment overheads for additional hardware. TREVA is available at http://bioinformatics.petermac.org/treva/.

0 + 0 = 1 : the appliance model of selling software bundled with hardware; Appliance model of selling software bundled with hardware

Hein, Bettina
Fonte: Massachusetts Institute of Technology Publicador: Massachusetts Institute of Technology
Tipo: Tese de Doutorado Formato: 120 leaves
ENG
Relevância na Pesquisa
36.62%
The business model of selling software bundled with hardware is called the appliance model. As hardware becomes less and less expensive and open source software is being offered for free, the traditional business model of selling packaged software is being threatened. This disruption in the software industry is forcing software vendors to consider other business models such as advertising-based, transaction-based, software-as-a-service or appliance-based models in order to create additional value for customers. Most of these models have existed in variants for decades but are now gaining in popularity due to factors such as changing cost structures or the Internet as a delivery channel. This thesis analyzes the economic drivers and barriers for the appliance model for both the consumer and enterprise software industry segments. Important drivers of the appliance model for both of these sectors are hardware commoditization, open source software and vertical integration in order to capture margins. In the enterprise software segment the complexity of traditional software integration and operation including unpredictability of total cost of ownership, rising IT personnel cost and maintenance fees are driving the adoption of the appliance model.; (cont.) In the consumer software segment...

A Singular web service for geometric computations

Botana Ferreiro, Francisco Ramón; Kovács, Zoltán
Fonte: Springer Publicador: Springer
Tipo: info:eu-repo/semantics/article; submittedVersion
ENG
Relevância na Pesquisa
26%
Outsourcing algebraic computations in dynamic geometry is a possible strategy used when software distribution constraints apply. Either if the target user machine has hardware limitations, or if the computer algebra system cannot be easily (or legally) packaged inside the geometric software, this approach can solve current shortcomings in dynamic environments. We report the design and implementation of a web service using Singular, a program specialized in ideal theory and commutative algebra. Besides its canonical address, a virtual appliance and a port to a low-cost ARM based computer are also provided. Any interactive geometric environment can then outsource computations where Singular is used, and incorporate their results into the system. In particular, we illustrate the capabilities of the web service by extending current abilities of GeoGebra to deal with algebraic loci and envelopes by means of a recent algorithm for studying parametric polynomial systems.

O uso de realidade virtual na simulação e treinamento de inseminação artificial em bovinos com dispositivos hápticos

Silva Júnior, Alexandre Ribeiro
Fonte: Universidade Federal de Uberlândia Publicador: Universidade Federal de Uberlândia
Tipo: Dissertação
POR
Relevância na Pesquisa
36.33%
O procedimento de inseminação artificial em bovinos exige preparo e destreza do profissional. Na maioria das vezes, o treinamento da fecundação é feito através de contato direto com próprio animal. Nos períodos de treinamento prático, muitas vezes, não é possível a uma grande quantidade de alunos terem contato com o animal, por fatores como: custos, riscos à saúde do animal e do usuário, espaço físico inadequado, cio e manejo do animal. Tais fatores acabam tornando o processo de aprendizado extremamente teórico, culminando no despreparo dos mesmos. Nesse sentido, propõe-se um simulador de Inseminação Artificial (SISTIA – SISTEMA DE TREINAMENTO DE INSEMINAÇÃO ARITIFICIAL) com um modelo do aparelho reprodutor bovino, que visa, dentre outros fatores, a: realizar o treinamento em um ambiente virtual, antes de partir para a necessidade da prática no ambiente real, diminuir os custos com treinamento, diminuir gastos com a compra de material, diminuir riscos com a saúde do aluno, uma vez que, ele não será exposto ao contato com vírus e bactérias, diminuir os riscos de lesões ao animal por excesso ou erro de treinamentos reais, acompanhar os resultados de treinamento por meio da visualização de seus dados armazenados em um banco de dados da simulação. O treinamento em Realidade Virtual na simulação será desenvolvido com ajuda do dispositivo Háptico Phantom Omini. O uso desse tipo de dispositivo permite uma interação mais próxima do mundo real...

Feature enhancement from electrical resistivity data in an archaeological survey: the Sapelos hillfort experiment (Boticas, Portugal)

Alves, Mafalda; Bernardes, Paulo; Fontes, Luís Fernando Oliveira; Martins, Manuela; Madeira, Joaquim
Fonte: Society of Photo-Optical Instrumentation Engineers (SPIE). Publicador: Society of Photo-Optical Instrumentation Engineers (SPIE).
Tipo: Artigo de Revista Científica
Publicado em //2015 ENG
Relevância na Pesquisa
16%
The PoPaTERVA project is developing applied research regarding the comprehension of the multi-layered cultural background of the Terva Valley Archaeological Park, in Boticas, Portugal. One of the main aspects focused on the project is the appliance of remote sensing techniques to enhance non visible archaeological features. An earth resistance tomography (ERT) survey was carried out at the Sapelos hillfort, by the specialized SINERGEO geophysicist’s team, using a Wenner-Schlumberger array. The resulting data was analyzed by the authors in order to extract and verify valid archaeological features regarding the settlement’s structures. There are several adequate systems that can be used to visualize the surveyed data (x, y, z, Ω). However, the authors preferred the open source Visualization Toolkit (VTK) from Kitware Inc., since it supports several visualization and modelling techniques that are useful for interpretation purposes in archaeological contexts: for instance, it is possible to represent the archaeological site as a virtual scale model, which can be freely manipulated. For the Sapelos hillfort, two distinct visualizations were developed to represent the acquired electrical resistivity data. The first one is used to create a comprehensive volume from the surveyed data...

First Person Shooter: the subjective cyberspace

Elias, Herlander
Fonte: Covilhã: LabCom Books, 2009 Publicador: Covilhã: LabCom Books, 2009
Tipo: Livro
Publicado em //2009 ENG
Relevância na Pesquisa
16%
Two decades ago videogames were just moving sprites flashing on arcade games’ screens. A decade later videogames became a common household appliance and families began playing with these electronic games. As the personal computer developed, the Internet came up. Gaming consoles turned out to be pretty much desired and affordable. Nowadays, multimedia language evolved and the mobile age of the Internet is upon us. There’s only one videogame genre enabling a new form of interaction. It’s the First Person Shooter, a videogame genre that has surpassed cyberspace visionaries’ theories and it is acclaimed worldwide due to its online gaming capabilities. The future begins here, as the FPS becomes an interface model for new media products to come. No longer is enough to see things from the outside, the user-player wants to get inside cyberspace, to become the character. In this way we prefer playing to be “there”, on the virtual ground, left to fate. Either we’re armed or outgunned, outnumbered or betrayed, but in the end, as most of the researches point out: in FPS videogames, players actually become much more space-oriented and fit for survival. The Subjective Cyberspace provided by the FPS is our new media ground, and it will inevitably surpass the borders of gaming.

From Cluster to Cloud to Appliance

Malan, David J.
Fonte: Association for Computing Machinery Publicador: Association for Computing Machinery
Tipo: Conference Paper
EN_US
Relevância na Pesquisa
36.75%
We propose a client-side virtual machine (VM) as an alternative to on-campus clusters and off-campus clouds as a development environment for students in introductory courses. In Fall 2011, we deployed the CS50 Appliance, our own such VM, to 600 students on campus and, in Fall 2012, to 700 students on campus and 140,000 students online. We present in this work the results of that two-year experiment. The appliance itself is available as open source for others to adapt or adopt. Not only did the appliance enable us to provide students with simpler tools, among them a graphical editor without any latency, it also enabled us to provide more sophisticated tools too, including a web server and database server. Moreover, the appliance ensured that the course's workload no longer required constant Internet access, particularly of students abroad. And the appliance alleviated load on the course's servers, with execution of students' programs now distributed across students' own CPUs. Without the appliance (or more costly clusters or clouds), we certainly could not have accommodated as many as 140,000 students. But some students' laptops, particularly netbooks, struggled under the appliance's weight. Even though designed to be lean, the appliance...

Cloud BioLinux: pre-configured and on-demand bioinformatics computing for the genomics community

Krampis, Konstantinos; Booth, Tim; Tiwari, Bela; Bicak, Mesude; Field, Dawn; Nelson, Karen E; Chapman, Brad Alan
Fonte: BioMed Central Publicador: BioMed Central
Tipo: Artigo de Revista Científica
EN_US
Relevância na Pesquisa
16.15%
Background: A steep drop in the cost of next-generation sequencing during recent years has made the technology affordable to the majority of researchers, but downstream bioinformatic analysis still poses a resource bottleneck for smaller laboratories and institutes that do not have access to substantial computational resources. Sequencing instruments are typically bundled with only the minimal processing and storage capacity required for data capture during sequencing runs. Given the scale of sequence datasets, scientific value cannot be obtained from acquiring a sequencer unless it is accompanied by an equal investment in informatics infrastructure. Results: Cloud BioLinux is a publicly accessible Virtual Machine (VM) that enables scientists to quickly provision on-demand infrastructures for high-performance bioinformatics computing using cloud platforms. Users have instant access to a range of pre-configured command line and graphical software applications, including a full-featured desktop interface, documentation and over 135 bioinformatics packages for applications including sequence alignment, clustering, assembly, display, editing, and phylogeny. Each tool's functionality is fully described in the documentation directly accessible from the graphical interface of the VM. Besides the Amazon EC2 cloud...

Java bioinformatics analysis web services for multiple sequence alignment—JABAWS:MSA

Troshin, Peter V.; Procter, James B.; Barton, Geoffrey J.
Fonte: Oxford University Press Publicador: Oxford University Press
Tipo: Artigo de Revista Científica
EN
Relevância na Pesquisa
26%
Summary: JABAWS is a web services framework that simplifies the deployment of web services for bioinformatics. JABAWS:MSA provides services for five multiple sequence alignment (MSA) methods (Probcons, T-coffee, Muscle, Mafft and ClustalW), and is the system employed by the Jalview multiple sequence analysis workbench since version 2.6. A fully functional, easy to set up server is provided as a Virtual Appliance (VA), which can be run on most operating systems that support a virtualization environment such as VMware or Oracle VirtualBox. JABAWS is also distributed as a Web Application aRchive (WAR) and can be configured to run on a single computer and/or a cluster managed by Grid Engine, LSF or other queuing systems that support DRMAA. JABAWS:MSA provides clients full access to each application's parameters, allows administrators to specify named parameter preset combinations and execution limits for each application through simple configuration files. The JABAWS command-line client allows integration of JABAWS services into conventional scripts.

PROOF as a Service on the Cloud: a Virtual Analysis Facility based on the CernVM ecosystem

Berzano, Dario; Blomer, Jakob; Buncic, Predrag; Charalampidis, Ioannis; Ganis, Gerardo; Lestaris, Georgios; Meusel, René
Fonte: Universidade Cornell Publicador: Universidade Cornell
Tipo: Artigo de Revista Científica
Publicado em 19/02/2014
Relevância na Pesquisa
26.15%
PROOF, the Parallel ROOT Facility, is a ROOT-based framework which enables interactive parallelism for event-based tasks on a cluster of computing nodes. Although PROOF can be used simply from within a ROOT session with no additional requirements, deploying and configuring a PROOF cluster used to be not as straightforward. Recently great efforts have been spent to make the provisioning of generic PROOF analysis facilities with zero configuration, with the added advantages of positively affecting both stability and scalability, making the deployment operations feasible even for the end user. Since a growing amount of large-scale computing resources are nowadays made available by Cloud providers in a virtualized form, we have developed the Virtual PROOF-based Analysis Facility: a cluster appliance combining the solid CernVM ecosystem and PoD (PROOF on Demand), ready to be deployed on the Cloud and leveraging some peculiar Cloud features such as elasticity. We will show how this approach is effective both for sysadmins, who will have little or no configuration to do to run it on their Clouds, and for the end users, who are ultimately in full control of their PROOF cluster and can even easily restart it by themselves in the unfortunate event of a major failure. We will also show how elasticity leads to a more optimal and uniform usage of Cloud resources.; Comment: Talk from Computing in High Energy and Nuclear Physics 2013 (CHEP2013)...

Challenges of Upgrading a Virtual Appliance

Karimi, Kamran
Fonte: Universidade Cornell Publicador: Universidade Cornell
Tipo: Artigo de Revista Científica
Publicado em 02/07/2012
Relevância na Pesquisa
46.74%
A virtual appliance contains a target application, and the running environment necessary for running that application. Users run an appliance using a virtualization engine, freeing them from the need to make sure that the target application has access to all its dependencies. However, creating and managing a virtual appliance, versus a stand-alone application, requires special considerations. Upgrading a software system is a common requirement, and is more complicated when dealing with an appliance. This is because both the target application and the running environment must be upgraded, and there are often dependencies between these two components. In this paper we briefly discuss some important points to consider when upgrading an appliance. We then present a list of items that can help developers prevent problems during an upgrade effort.; Comment: 5 pages

Batch-oriented software appliances

Murri, Riccardo; Maffioletti, Sergio
Fonte: Universidade Cornell Publicador: Universidade Cornell
Tipo: Artigo de Revista Científica
Publicado em 07/03/2012
Relevância na Pesquisa
26%
This paper presents AppPot, a system for creating Linux software appliances. AppPot can be run as a regular batch or grid job and executed in user space, and requires no special virtualization support in the infrastructure. The main design goal of AppPot is to bring the benefits of a virtualization-based IaaS cloud to existing batch-oriented computing infrastructures. In particular, AppPot addresses the application deployment and configuration on large heterogeneous computing infrastructures: users are enabled to prepare their own customized virtual appliance for providing a safe execution environment for their applications. These appliances can then be executed on virtually any computing infrastructure being in a private or public cloud as well as any batch-controlled computing clusters the user may have access to. We give an overview of AppPot and its features, the technology that makes it possible, and report on experiences running it in production use within the Swiss National Grid infrastructure SMSCG.; Comment: 11 pages, no figures. Submitted to VTDC'12

Evaluation of virtual routing appliances as routers virtual environment

Al-Amoudi, Ahmed
Fonte: Rochester Instituto de Tecnologia Publicador: Rochester Instituto de Tecnologia
Tipo: Tese de Doutorado
EN_US
Relevância na Pesquisa
36.84%
A virtual routing appliance is a system for the rapid, automated management and employment of virtual networks. Virtual routing appliances utilize virtual machines to enable virtual infrastructure, and they have been used commonly in order to implement experimental networks and devoted subnets over a virtual network. Existing research in this area such as cluster-based virtual routers, and Xen routers require the use of physical resources to establish connectivity and to guarantee efficient resource utilization. The virtual routing appliance uses dynamic routing protocols such as RIP, and OSPF to forward traffic between different subnets and manage IP packets at the IP layer. The virtual routing appliance permits rapidly deployable virtual infrastructure, which is helpful for installing isolated infrastructure for restricted purposes, and which is also vital to the deployment of both network and application services. This research is a self-sufficient initiative to evaluate the feasibility of setting up virtual routing appliances in a virtual environment. A virtual routing appliance can convey about substantial cost benefits to organizations, especially educational institutions with limited use of physical resources.