1,721,074 research outputs found
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
Digitisation of Conventional Water Meters Using Automated Number Recognition
No full textNowadays, New Zealand families are still using traditional analog water meters. Even if the traditional water meter has the characteristics of accuracy measurement precision, simple structure, zero power dissipation and high reliability, it still needs a worker to record the meter readings door-by-door. With the development of image processing technology, people spend a large amount of research in the field of character recognition, a growing number of character recognition products are applied to industrial production and daily life. In this thesis, an accessory will be designed for water meters by using optical character recognition technology to discern the meter reading. This accessory can translate the analog meter reading into a digital signal, prepare for the automated meter reading system, and Internet of Things in the future. The accessory will sit on top of a conventional water meter, using a camera to capture the number, and display the reading on an additional LCD, which can be sent wirelessly to a database server. This provides a significant alternative meter reading, reducing human resource waste. The contribution of this thesis is a novel light-weight optical character recognition algorithm and its implementation in a prototype with embedded digital system. Experimental results show that the reading accuracy can be as high as 95%, which indicates a promising candidate technology for automated meter reading
Development of LoRa-based Wireless Sensing Technologies for Structural Health Monitoring
No full textAs vital components of national service facilities, civil infrastructures must meet design standards for safety, sustainability, and longevity. However, the performance of struc- tures in long-term service can be compromised or even destroyed by ageing and natural calamities. Therefore, monitoring the integrity of these structures enables the owner, users, and other stakeholders to have a better understanding of the safety state, allowing them to better maintain and extend the service lives of these structures.
Visual inspection is currently the most used non-destructive testing method, although it is unreliable, especially when monitoring huge structures and difficult-to-access locations. The Structural Health Monitoring (SHM) system can be a useful instrument for monitoring and evaluating structural performance. It refers to the process of adopting a strategy for structural damage detection. A typical SHM system operating procedure includes the monitoring of dynamic response via a sensory system, the extraction of damaged physical features, and the analysis of gathered data to determine the condition of the monitored structure. Strain is a metric that has a direct relationship with stress and deflection. In other words, aberrant structural symptoms, such as damage and degeneration, typically manifest as strain field anomalies.
Hence, the objective of this research is to build a new strain-based wireless sensory system for an integrated SHM system. Due to the strain gauge’s extensibility and high sensitivity, it is feasible to monitor the progression of local damage across a small area at an early stage. Besides, by incorporating strain-based sensors into the wireless sensor network design model, the SHM system’s integration and management scope will be expanded to include the underlying sensor equipment and the user- graphical interface for monitoring data visualization, thereby achieving the integration of real-time monitoring and rapid evaluation of the structure. The strain-based flexible sensing system developed in this study not only fulfils the requirements for low power consumption but also exhibits excellent sensitivity, allowing it to accurately monitor minor strain changes in localised locations. The wireless sensor system is composed of three parts: a flexible strain-sensing plate, a wireless transmission communication system based on LoRa, and a visual real-time monitoring system.
The aim of this system is to overcome the problem of local damage detection in structural health monitoring (SHM) systems. Thus, it can be utilised as part of an intelligent SHM system to monitor, collect, and transmit strain changes in essential structural components. This research’s primary objective is to reduce development and installation costs and the system’s power consumption in order to enable long-term monitoring. Because the developed highly flexible strain sensing sheets can be easily mounted on the surface of the structure, as well as having the properties of being waterproof and heat and low temperature resistant, the installation and maintenance costs of the sensor are substantially reduced.
A series of experimental experiments were conducted on a full-scale concrete frame construction in order to evaluate the various properties of the flexible strain gauge. The performance of a flexible strain sensing device was investigated in terms of sensitivity, strain monitoring, and crack damage. The system was also designed to utilise LoRa wireless communication technology for low power consumption and long distance transmission in order to solve the need to install a large number of sensors to cover a larger area in huge constructions.
The second component of the research involved the development of a hardware system for the continuous gathering of data for two strain measuring configurations: bend- ing strain and axial strain. Utilising multiplixers to achieve seamless configuration switching. Additionally, LoRa technology is employed to enable long-distance wireless transmission. The strain data has a low transmission rate need and is well fitted to LoRa technology, allowing the designed sensing system to have extremely low power consumption and reducing the cost of battery replacement and system maintenance by a significant amount.
The third component of the research is developing an user interface for data management and visualisation for the integrated SHM system. Node-RED is used to create a dashboard for data visualisation, which is connected to The Thing Network (TTN) and Clould to enable real-time data transfer and demonstrate. It is entirely compatible with the deceloped flexible strain sensor system, allowing users to simultaneously monitor the minimum and maximum values of bending and axial strain. The Dashboard also includes the Timechart function to assist users in comprehending the pattern of strain data over time and detecting outliers. The visualisation tool additionally gives information on the number of sensors and Gateways in use, including their operational state and installation locations. Moreover, the original data is kept to permit in-depth analysis and extraction.
The experimental results presented in this thesis demonstrate that the developed system is practicable and possesses the qualities of high sensitivity, low power consumption, and low cost. It is conducive to the continuous real-time monitoring of multiple strains on the structure’s main components and allows the flexible wireless sensor system to identify damage in a wide variety of structures
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
Digitisation of Conventional Water Meters Using Automated Number Recognition
No full textNowadays, New Zealand families are still using traditional analog water meters. Even if the traditional water meter has the characteristics of accuracy measurement precision, simple structure, zero power dissipation and high reliability, it still needs a worker to record the meter readings door-by-door. With the development of image processing technology, people spend a large amount of research in the field of character recognition, a growing number of character recognition products are applied to industrial production and daily life. In this thesis, an accessory will be designed for water meters by using optical character recognition technology to discern the meter reading. This accessory can translate the analog meter reading into a digital signal, prepare for the automated meter reading system, and Internet of Things in the future. The accessory will sit on top of a conventional water meter, using a camera to capture the number, and display the reading on an additional LCD, which can be sent wirelessly to a database server. This provides a significant alternative meter reading, reducing human resource waste. The contribution of this thesis is a novel light-weight optical character recognition algorithm and its implementation in a prototype with embedded digital system. Experimental results show that the reading accuracy can be as high as 95%, which indicates a promising candidate technology for automated meter reading
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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