42,153 research outputs found
A computer vision approach to improve maintenance automation for thermal power plants lubrication systems
No full textPurpose – Lubricating oil leakage is a common issue in thermal power plant operation sites, requiring prompt
equipment maintenance. The real-time detection of leakage occurrences could avoid disruptive consequences
caused by the lack of timely maintenance. Currently, inspection operations are mostly carried out manually,
resulting in time-consuming processes prone to health and safety hazards. To overcome such issues, this paper
proposes a machine vision-based inspection system aimed at automating the oil leakage detection for
improving the maintenance procedures.
Design/methodology/approach – The approach aims at developing a novel modular-structured automatic
inspection system. The image acquisition module collects digital images along a predefined inspection path
using a dual-light (i.e. ultraviolet and blue light) illumination system, deploying the fluorescence of the
lubricating oil while suppressing unwanted background noise. The image processing module is designed to
detect the oil leakage within the digital images minimizing detection errors. A case study is reported to validate
the industrial suitability of the proposed inspection system.
Findings – On-site experimental results demonstrate the capabilities to complete the automatic inspection
procedures of the tested industrial equipment by achieving an oil leakage detection accuracy up to 99.13%.
Practical implications – The proposed inspection system can be adopted in industrial context to detect
lubricant leakage ensuring the equipment and the operators safety.
Originality/value – The proposed inspection system adopts a computer vision approach, which deploys the
combination of two separate sources of light, to boost the detection capabilities, enabling the application for a
variety of particularly hard-to-inspect industrial contexts
Resilience, Leadership and Work Engagement: The Mediating Role of Positive Affect
No full text
This study examines the influence of resilience and transformational leadership on work engagement, and it investigates the mediating effect of positive affect. A total of 422 employees at a large IT company participated the survey. Participants completed established measures of resilience, transformational leadership, positive affect, and work engagement. The results indicate that resilience and transformational leadership are positively related to work engagement. Structural equation modeling analysis shows that positive affect partially mediates the relationships between resilience, transformational leadership, and work engagement. Theoretical contributions, practical implications, and future research directions are discussed.</p
Assessment of Self-Archiving in Institutional Repositories: Depositorship and Full-Text Availability
No full textThis research evaluates the success of open access self-archiving in several well-known institutional repositories. Two assessment factors have been applied to examine the current practice of self-archiving: depositorship and the availability of full text. This research discovers that the rate of author self-archiving is low and that the majority of documents have been deposited by a librarian or administrative staff. Similarly, the rate of full-text availability is relatively low, except for Australian repositories. By identifying different practices of self-archiving, repository managers can create new strategies for the operation of their repositories and the development of archiving policies
Supplemental Material - Multi-Objective sliding mode control of proton exchange membrane fuel cell system based on adaptive algebraic observer
No full textSupplemental Material for Multi-Objective sliding mode control of proton exchange membrane fuel cell system based on adaptive algebraic observer by Hao Jing, Tiexiong Huang, Cheng Li, Xiaodong Liu, Guangdi Hu and Chaoping Pang in Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy.</p
Information Literacy and Librarian-Faculty Collaboration: A Model for Success:
No full textIn the age of information explosion and technological advancement, issues of information storage, organization, access, and evaluation have become necessarily important in our societies. Addressing issues of information literacy and designing how they can be best integrated in students' learning process are of critical importance. Library professionals in the United States, particularly in the academia, have realized the importance of information literacy and have attempted in various ways to address these issues. The ultimate goal is to make information literacy an integral part of the academic curriculum, thus helping students to succeed not only during their years in college but also for their lifelong career choices. This article will look at ways of how information literacy can best be incorporated into students' academic experience, and how this process can make students' learning meaningful and successful. Specifically, the author will examine the model of librarian-faculty collaboration in integrating information literacy into the curriculum, as demonstrated in the Ohio Five Colleges' Information Literacy Program.Publisher version of this article is available at: http://www.white-clouds.com/iclc/cliej/cl24.ht
Factors to Assess Self-Archiving in Institutional Repositories
No full textThis paper proposes a group of factors that may be used to assess the success of open access self-archiving. It concentrates on self-archiving in institutional repositories. The authors emphasize the importance of examining content materials, particularly the availability of full text versus abstracts and the deposits archived by authors versus by others.Peer reviewe
Applying the NISO Metasearch Initiative Scheme to Enhance E-Resources Management at Rutgers University Library
No full textThis paper discusses problems in the management of library e-resources and attempts to identify potential solutions to the problems. By describing an e-resources enhancement project taken by Rutgers University Libraries, this paper points to the importance of providing contextually-rich metadata and reorganizing the accessibility of e-resources on a library’s website. It introduces how this Rutgers project adopted the National Information Standards Organization Metasearch Initiative to support the identification of appropriate e-collections for metaseaching. The outcomes of the project have facilitated a dynamic display of relevant e-resources to library users as an effective way of automatic access to library e-collections.Peer reviewe
A Metadata Manager's Role in Collaborative Projects: The Rutgers University Libraries Experience
No full textPurpose – This article discusses the roles and responsibilities of a metadata manager in collaborative digital projects.
Methodology – It describes the general requirements for metadata management, and introduces some scenarios in the practices of digital projects by the Rutgers University Libraries to support the generalized definition. A workflow of metadata management is illustrated.
Practical implications – With an explicit definition of the roles and responsibilities of the metadata manager, many other digital libraries that need to develop a new or optimize the existing workflow may find the Rutgers experience useful as reference.
Originality – Very few articles have explored this topic although the functions of metadata in the development of digital projects have been talked extensively.Peer reviewe
Macropsis zizhongi Li, Dai et Li
No full textMacropsis zizhongi Li, Dai et Li, nom. nov. Macropsis gracilis Li et Liang, 2005: 578 –579, nom. preocc. (nec Macropsis gracilis Dubovskiy, 1966: 97) Distribution. China (Heilongjiang prov.). Etymology. The species is named in honour of Prof. Li Zizhong, the first author of the original species name.Published as part of Li, Hu, Dai, Ren-Huai, Li, Zi-Zhong & Yu, Dmitri, 2012, Taxonomic study of Chinese species of the genus Macropsis (Hemiptera: Cicadellidae: Macropsinae): new species, new records, synonymy and replacement name, pp. 41-62 in Zootaxa 3420 on page 61, DOI: 10.5281/zenodo.21216
Graph Encryption for Shortest Path Queries with k Unsorted Nodes
No full textShortest distance queries over large-scale graphs bring great benefits to various applications, i.e., save planning time and travelling expenses. To protect the sensitive nodes and edges in the graph, a user outsources an encrypted graph to an untrusted server without losing the query ability. However, no prior work has considered the user requirement of the shortest path with k unsorted nodes. In particular, we are concerned with how to securely find the shortest path by passing k nodes that do not have a fixed traverse order. To solve the problems, we propose Gespun (stands for Graph encryption for shortest path queries with k unordered nodes). It includes an oracle encryption scheme that is provably secure against the semi-honest server. Specifically, we compute the shortest paths and distances for all nodes locally to obtain path-distance oracles. We transform the shortest paths to a sequence of secure codes by using a pseudo-random permutation to protect the structure privacy. We encrypt the shortest distance by using additively homomorphic encryption. Second, we pack the oracles in link-list nodes and store them in an array-based dictionary after another permutation. Next, we construct a search graph to compute the shortest path while guaranteeing that the path passes the required k nodes. We formally prove that Gespun is adaptively semanticallysecure in the random oracle. We implement a prototype of Gespun and evaluate its performance. Experiments results demonstrate that Gespun is efficient, e.g., a query over 6301 nodes, 20777 edges, and 5 unsorted nodes only needs 483 ms to get queried results. We believe that our research problem span new research that soon promotes a new line of graph encryption schemes
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