1,720,957 research outputs found
Risk Analysis Of Bogie Maintenance TB 1014 Using FMEA Method
Full text linkABSTRACTThe bogie is a vital component in the railway system that functions to support the load, maintain stability, and ensure the smooth running of the train. Damage to the bogie can cause safety problems and reduce passenger comfort. This study aims to analyze the risk of failure of the TB 1014 bogie component on the K3 01430 train using the Failure Mode and Effect Analysis (FMEA) method as a case study at the Surabaya Pasar Turi (SBI) Train Depo. Data were collected through field observations, technician interviews, and bogie component inspections. The analysis was carried out by assessing the Severity, Occurrence, and Detection parameters to obtain the Risk Priority Number (RPN) value for each component. The results showed that the shock absorber, block brake sprinkler, and wheels had the highest RPN values of 140, 120, and 108, respectively, which were maintenance priorities. All components had RPNs below 200 so the recommended maintenance strategy was corrective maintenance. The FMEA method has proven effective in helping to identify, assess, and prioritize failure risks, so that it can be used as a basis for developing more targeted maintenance strategies and increasing train operational reliability
APPLICATION OF FMEA AND RCM IN DEVELOPING A STANDARD OPERATING PROCEDURE (SOP) FOR BELT CONVEYOR SPLICING
Full text linkBelt conveyors are the most widely used material transportation systems in various industries because they are capable of continuously moving goods efficiently and consistently. This system consists of a belt driven by pulleys and a motor, enabling the transfer of large quantities of material in a relatively short time. Its reliability is highly influenced by the quality of the belt joint, making maintenance and splicing procedures crucial aspects. This study discusses the application of Failure Mode and Effect Analysis (FMEA) and Reliability Centered Maintenance (RCM) methods in developing a Standard Operating Procedure (SOP) for belt conveyor splicing. The study was conducted at PT. Indonesia Belting Solution during the period of June 1 – July 31, 2025, through field observations, technical interviews, documentation, and data analysis. The results of the identification show that the dominant failures occur at the belt joints in the form of breakage, tearing, and brittleness. FMEA analysis indicates that joint failure due to inaccurate splicing processes is the top priority with the highest Risk Priority Number (RPN). Through the RCM approach, a Condition Directed Maintenance strategy was established as the primary action, and an SOP for splicing using the finger splice and hot press methods was developed to improve joint quality. In addition to providing a structured evaluation of potential failures, this study emphasizes that the integration of FMEA and RCM can serve as a systematic basis for preparing standard procedures. The proposed SOP implementation is expected to enhance joint strength, extend belt service life, and reduce production downtime, thereby improving conveyor system reliability and overall operational efficiency
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
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe 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
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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