The reliability on Safety Instrumented Systems (SIS) is critical for the safe operation of many industrial applications. In particular, SIS play an important role in oil and gas processing plants. SIS are responsible ...
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The achievement of different university degrees (from graduate to the specialization, master's and doctoral) usually is related to the development and presentation of research results conducted by an Academic Advi...
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ISBN:
(纸本)9781467352598
The achievement of different university degrees (from graduate to the specialization, master's and doctoral) usually is related to the development and presentation of research results conducted by an Academic Advisor. However, their finalization or the results may be adversely affected by the lack of identification of risk that may present themselves during the process of construction and development of the research. To minimize these impacts, the present study was based on the alignment and adjustment of processes present in the Project Management Body of Knowledge (PMBoK), a specific guide that consolidates the best practices of project management from the Project Management Institute (PMI), and the use of Failure Mode and Effects Analysis (FMEA). From such elements and the identification of factors relevant to the educational institution involved and the processes related to the advisory and development of scientific research, it was sought to build a proposed risk analysis in the academic, named Academic Project Risk Management Plan (APRMP). This aims to contribute to the discussion and gathering information that can support the Advisor and the student at all stages of the research (planning, development and conclusion) that downside risks are avoided or minimized and that opportunities become clear and effective possibilities.
EDITOR'S SUMMARY The 13th Annual SIG/USE Research Symposium focused on ways mobile technologies have influenced information needs, seeking and use. In her keynote address, Caroline Haythornthwaite framed movement ...
EDITOR'S SUMMARY The 13th Annual SIG/USE Research Symposium focused on ways mobile technologies have influenced information needs, seeking and use. In her keynote address, Caroline Haythornthwaite framed movement as changing contributorship, interactions and participation in multiple knowledge communities. A series of Ignite talks on the common theme of mobility followed, with topics ranging from mobile phones as the preferred Internet access device, credibility of mobile applications and online resources and public libraries' use of social media and mobile applications to mobile apps promoting health information literacy and supporting teleworking. Small groups brainstormed on opportunities, challenges and research ideas inspired by the theme. Annual SIG/USE awards recognized scholars for innovative work on topics including refugees' information seeking, factors influencing scholars' data sharing and drawings as visual representations of information. The symposium closed with encouragement to consider how information on the move influences perspectives and research into information behavior.
This paper presents a new code compression method in which we merge the Huffman algorithm with the formation of patterns of blocks and three dictionaries. We seek two consecutive blocks in two levels, one of them into...
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ISBN:
(纸本)9781467348973
This paper presents a new code compression method in which we merge the Huffman algorithm with the formation of patterns of blocks and three dictionaries. We seek two consecutive blocks in two levels, one of them into compressed code and the other related to uncompressed code. We have used simulation with SimpleScalar and programs from MiBench. Our proposal has achieved a compression rate of 32.6% and 31.9%, respectively, for ARM and MIPS processor.
The increasing adoption of mobile devices can improve the collaborative participation, especially in data acquiring, of people in their space: where they live or where they work. Based in this kind of crowdsourcing, w...
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ISBN:
(纸本)9781467360845
The increasing adoption of mobile devices can improve the collaborative participation, especially in data acquiring, of people in their space: where they live or where they work. Based in this kind of crowdsourcing, we create a proposal for The Federal University of Rio de Janeiro (UFRJ), specially its campus of “Ilha do Fundão” (Fundão Island), which has a fragmented culture since its origin. Nowadays, it is still possible to find not only a geographical distance, but also informational disaggregation and waste of resources and opportunities. In order to minimize these problems, as well motivating the collaborative work, we create an approach using mobile computing, called UFRJ Social. The main idea is that the crowd (students, professor, employers, visitors and anyone who stay in the campus) can provide information or opinions of any place (infrastructure, events, classes, bus stations and others). This application is context-sensitive, and users can receive recommendations by their geographical location and interests. This approach was evaluated in a study case and the results were positive. In this paper we also analyze how this approach can be extended in other scenarios.
The reliability on Safety Instrumented Systems (SIS) is critical for the safe operation of many industrial applications. In particular, SIS play an important role in oil and gas processing plants. SIS are responsible ...
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The reliability on Safety Instrumented Systems (SIS) is critical for the safe operation of many industrial applications. In particular, SIS play an important role in oil and gas processing plants. SIS are responsible not only for the continuous operation of the plant, it also keeps the plant in a safe state, avoiding damages to the environment and minimizing risks to employees. Therefore, the correct behavior of such systems is an important goal to achieve when building industrial plants. Verification and testing of SIS programs is a very hard task to accomplish. This happens mainly for two reasons. First, testing the real system is very expensive and sometimes it may take a huge amount of time, weeks or even months. Second, those systems deal with a huge number of variables. It is not always possible for a human tester to check if all of them are correct when performing tests. Providing an automatic and formal testing approach for such systems is an important contribution for the development of such systems. In this work we introduce a new method for generating test cases for SIS programs running on programable Logic Controller (PLC). As we did on previous work, ISA 5.2 diagrams are used as specification of the systems, but now we are using a hardware-in-the-loop technique, and the target artifact is a software running on a PLC. To avoid the execution of redundant tests, we introduced a new test case generation algorithm that is based on equivalence classes. Finally, we discussed a study case in which our method is used to detect error, that were introduced on purpose, on a simple system.
The continuous shrinking of devices has introduced new challenges to integrated circuit design, mainly to deal with the parametric variations in process parameters. This paper presents an evaluation of the process var...
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The continuous shrinking of devices has introduced new challenges to integrated circuit design, mainly to deal with the parametric variations in process parameters. This paper presents an evaluation of the process var...
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ISBN:
(纸本)9781467312073
The continuous shrinking of devices has introduced new challenges to integrated circuit design, mainly to deal with the parametric variations in process parameters. This paper presents an evaluation of the process variability on the current Ids of nanotechnologies devices, individually and simultaneously, taking into account the correlation among them. The results show that the deviation from mean value is quite significant ≈ 16% for high performance models. The variation of L has the dominant effect on the overall variation of the device in high performance models while the dominant effect on the overall variation of the device in low power models still being due to Vth variations. Lastly, the effect of process parameter variations deteriorates with technology scaling, with a considerable increase in the deviation from the 22nm to 16nm technology.
This paper presents a new code compression method where we use different dictionaries, all of them are based in traditional Huffman algorithm. Our method reduces code size by up to 34.5% (including all extra costs) an...
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This paper presents a new code compression method where we use different dictionaries, all of them are based in traditional Huffman algorithm. Our method reduces code size by up to 34.5% (including all extra costs) and presents an improvement of almost 7% over the traditional Huffman method. We performed simulations using Simple Scalar and analyzes using the applications from benchmark MiBench and use the embedded processor ARM.
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