1,721,100 research outputs found
Resource Sharing in Global Fixed-Priority Preemptive Multiprocessor Scheduling
No full textIn this paper we consider global fixed-priority preemptive multiprocessor scheduling of constrained-deadline sporadic tasks that share resources in a non-nested manner. We develop a novel resource-sharing protocol and a corresponding schedulability test for this system. We also develop the first schedulability analysis of priority inheritence protocol for the aforementioned system. Finally, we show that these protocols are efficient (based on the developed schedulability tests) for a class of priority-assignments called emph{reasonable} priority-assignments
Networked medical systems
No full textThe medical industry is now entering a new era of using technology to its fullest
capability through the advancement in the research of network medical devices. These
devices has existed with their own functionality and boundary. Applying the network
model will further enhance its ability to function together in a closed loop medical
scenario. This paper studies the verification of the closed loop medical scenario which
is converted to a more abstract state-space model. The continuous time based patients
model of the system is used to create a nonrepresentational timed automata model.
The safety verification of this model is covered within the timing constraints of the
medical knowledge of the patient. Further verification have been created in order to
make a more resilient and safe model which could be used in the medical field.Bachelor of Engineering (Computer Engineering
Remote monitoring of industrial robot cell
No full textAs robotic arms can be used to perform tasks such as polishing and grinding, there is a need to interface sensors to monitor the results from the readings of the sensors. However, the interface itself can be met with different challenges that limits the effectiveness of the communication with the sensor. Challenges can arise from both hardware and software component of the system and a study was done to try to understand the limitations and to investigate on different solutions to aid in the interfacing of the sensor to achieve a more efficient communication to the sensors.Bachelor of Engineering (Computer Engineering
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Distributed dispatcher & scheduler with bandwidth constraint in edge computing
No full textIn this report, we study the distributed dispatcher & scheduler with bandwidth constraint in
edge computing. We will first image and create a cloud computing environment for a
centralised solution. We then consider networking bandwidth constraints and a server’s
computational resources before creating a centralised algorithm for dispatching and scheduling.
Subsequently, we implement this algorithm in a simulation environment and confirm our
understanding of the cloud computing concept and test the algorithm’s correctness. After which,
the cloud computing environment will be viewed from a decentralised perspective where a
decentralised solution can be formulated. A final decentralised solution will be created by
modifying the above centralised solution to abide by the three key characteristics of a
decentralised system, concurrency, loosely coupled and independent of failure.Bachelor of Engineering (Computer Science
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