1,720,959 research outputs found
Upper Limbs Extension and Flexion Angles Calculation and Visualization Using Two Wearable Inertial Measurement Units
No full textHuman motion analysis is widely used in many fields such as physical rehabilitation, athlete training, health status diagnosis and many others. Range of motion (ROM) is an important parameter to evaluate limb’s performance during activity of daily. Goniometer is a device often used by physiotherapist to evaluate and analyse the ROM of individual’s limb movement. The objective of this works is to develop a system to measure ROM using multiple Inertial Measurement Units (IMU) and transfer data to host computer by using Bluetooth Low Energy (BLE). A software program was develop using Phyton to visualize the motion. In this works, Intel CurieNano board, a six degree of freedom IMU that consist of an accelerometer and a gyroscope was used to calculate the ROM using sensor fusion algorithm. The data from accelerometer and gyroscope were fused using the complementary filter to get the ROM. The motion data was acquired by IMU sensor was sent to a custom program developed in Python through BLE. This custom program displayed the acquired data and visualized the motion in 3D visual model. The IMU sensor was used to measure certain angles at 10°, 30°, 60° and 90° to test its accuracy. The results showed that the angle measurement using IMU sensors has correlation coefficient of 0.9967 where the reference method was goniometer. The wrist flexion and extension angle have maximum error of 7.49° for flexion and minimum error of 1.14° for extension. The ROM measured using IMU sensor has maximum error of 3.57% compared to goniometer. It showed that the IMU’s ROM measurement method is as good as goniometer.
Manuscript received: 21 Mar 2022 |Revised: 18 Apr 2022 | Accepted: 6 May 2022 | Published: 8 Jul 202
Upper Limbs Extension and Flexion Angles Calculation and Visualization Using Two Wearable Inertial Measurement Units
No full textHuman motion analysis is widely used in many fields such as physical rehabilitation, athlete training, health status diagnosis and many others. Range of motion (ROM) is an important parameter to evaluate limb’s performance during activity of daily. Goniometer is a device often used by physiotherapist to evaluate and analyse the ROM of individual’s limb movement. The objective of this works is to develop a system to measure ROM using multiple Inertial Measurement Units (IMU) and transfer data to host computer by using Bluetooth Low Energy (BLE). A software program was develop using Phyton to visualize the motion. In this works, Intel CurieNano board, a six degree of freedom IMU that consist of an accelerometer and a gyroscope was used to calculate the ROM using sensor fusion algorithm. The data from accelerometer and gyroscope were fused using the complementary filter to get the ROM. The motion data was acquired by IMU sensor was sent to a custom program developed in Python through BLE. This custom program displayed the acquired data and visualized the motion in 3D visual model
Bus tracking app for universities transportation
No full textShuttle buses have become an important means of transportation for students especially for those who rely on it to go to class. However, students often face difficulty knowing the current location of the bus and its estimated arrival time. Some of them are even unaware of the bus schedule provided by higher management. Consequently, they have to wait too long for their respective buses to arrive. Hence, for the convenience of those who want to plan their journey with shuttle buses, two applications are proposed. One application will track the location of the bus and the other application will be used by the students. Both proposed applications will be used along with an Android phone since it is mostly used by students. The main objectives of developing this application are to inform users regarding the current bus location and estimated arrival time. This application also provides users real-time forum so they can start conversations with others with the same application. Besides, the driver's profile is also included for the user's future reference
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe 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
Get PDF“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
Get PDFWe 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
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
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