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1 – 10 of over 1000Aida Khakimova, Oleg Zolotarev and Sanjay Kaushal
Effective communication is crucial in the medical field where different stakeholders use various terminologies to describe and classify healthcare concepts such as ICD, SNOMED CT…
Abstract
Purpose
Effective communication is crucial in the medical field where different stakeholders use various terminologies to describe and classify healthcare concepts such as ICD, SNOMED CT, UMLS and MeSH, but the problem of polysemy can make natural language processing difficult. This study explores the contextual meanings of the term “pattern” in the biomedical literature, compares them to existing definitions, annotates a corpus for use in machine learning and proposes new definitions of terms such as “Syndrome, feature” and “pattern recognition.”
Design/methodology/approach
Entrez API was used to retrieve articles form PubMed for the study which assembled a corpus of 398 articles using a search query for the ambiguous term “pattern” in the titles or abstracts. The python NLTK library was used to extract the terms and their contexts, and an expert check was carried out. To understand the various meanings of the term, the contextual environment was analyzed by extracting the surrounding words of the term. The expert determined the appropriate size of the context for analysis to gain a more nuanced understanding of the different meanings of the term pattern.
Findings
The study found that the categories of meanings of the term “pattern” are broader in biomedical publications than in common definitions, and new categories have been emerging from the term's use in the biomedical field. The study highlights the importance of annotated corpora in advancing natural language processing techniques and provides valuable insights into the nuances of biomedical language.
Originality/value
The study's findings demonstrate the importance of exploring contextual meanings and proposing new definitions of terms in the biomedical field to improve natural language processing techniques.
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Haris Hameed Mian and Hammad Rahman
Filament wound pressure vessels have a characteristic pattern observed in their helical layers. These are mosaic‐shaped patterns and affect the layer structural behavior. The…
Abstract
Purpose
Filament wound pressure vessels have a characteristic pattern observed in their helical layers. These are mosaic‐shaped patterns and affect the layer structural behavior. The present research aims to focus on the influence of mosaic patterns on stress‐strain field and structural design of thin‐walled internally pressurized filament wound pressure vessel. The widely used stress analysis procedures and the commercially available finite element tools usually neglect the effect of the mosaic patterns. The present work seeks to deal with the modeling and stress analysis of complete pressure vessel, incorporating mosaic patterns.
Design/methodology/approach
The incorporation of the mosaic effect provides more realistic modeling of the real stress distribution and the stress values compared to the conventional analyses (the effect would depend on the shell structure, i.e. number of plies, relative thicknesses, etc.). The structural analysis is performed using commercial finite element analysis (FEA) tools ANSYS.
Findings
The comparison of results of analytical solution and conventional FEA provides close values of the stresses in the plies. As for the stress and strain distributions obtained by incorporating the effect of mosaic patterns are considerably different. The distribution of the stress and strain fields are not uniform along the length of the vessel and along its circumference and the maximum stresses acting in the direction of the fibers are higher than those calculated using conventional FEA techniques.
Originality/value
Previous work was limited to composite cylindrical shells, without incorporating the end domes. The present work deals with the modeling and stress analysis of complete pressure vessel, incorporating mosaic patterns.
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Panitcha Peganant and Pisut Koomsap
The purpose of this paper is to present a new tile dispensing decision-making to improve a row formation of a product flow-based tiling automation that has been being developed to…
Abstract
Purpose
The purpose of this paper is to present a new tile dispensing decision-making to improve a row formation of a product flow-based tiling automation that has been being developed to support tile placement for custom mosaic design.
Design/methodology/approach
A new tile dispensing decision-making combines maximum tile loading and simple cycle strategies to minimize time for forming rows of tiles. The maximum tile loading strategy is for minimizing the number of loading rounds, while the simple cycle strategy is for minimizing the movement during the row formation.
Findings
This proposed decision-making has been developed; implemented in LabVIEW software; linked with other LabVIEW-based programs to control the system; and tested. The results showed the tile dispensing with the proposed decision-making performed better than the previous one.
Research limitations/implications
The tiling automation is being developed and is currently on a prototyping stage.
Originality/value
Tile dispensing is critical for this row by row automated assembly, but the existing shortest distance strategy does not guarantee the best performance for a row formation. Therefore, the combination of the maximum tile loading and simple cycle strategies has been developed to improve the performance of the product flow-based tiling automation to better support assembly of custom mosaic design that requires individual tesserae to be assembled to particular positions to illustrate an image properly.
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Bulent Kaya, Ahmet Berkay and Fehmi Erzincanli
This paper describes a robotic system developed for tiling mosaics based on image processing according to customer expectations.
Abstract
Purpose
This paper describes a robotic system developed for tiling mosaics based on image processing according to customer expectations.
Design/methodology/approach
Many varieties of mosaics art in different forms has been applied manually over centuries for art decorating. Although the mosaics material is cheap with immense decorative potential, the mosaics tiling process is difficult and costly skill to perform. Therefore, an image processing based robotic tiling system has been presented and applied in this study. An algorithm has been developed for converting the computer image to mosaic picture by using Borland C++ Builder 6.0 and successfully utilized on six degrees of freedom Ultimate Puma 500 type industrial robot for tiling glass mosaics to any plane.
Findings
According to result of this study, it can be realized that the robots could be successfully utilized on decorating processes, e.g. tiling mosaics, for faster and flexible production.
Originality/value
Presented robotic system allows the craftsmen to produce large and extra ordinary mosaic figures by using computer image and glass mosaic tiles. The goal of using a robot in this application is to increase the speed without man‐faults and flexibility.
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Zhangxin Guo, Zhonggui Li, Junjie Cui, Yongcun Li and Yunbo Luan
The purpose of this paper is to present a finite element analysis (FEA) of filament-wound composites, as well as application of these materials.
Abstract
Purpose
The purpose of this paper is to present a finite element analysis (FEA) of filament-wound composites, as well as application of these materials.
Design/methodology/approach
In this paper, a new finite element method of filament-wound composite is presented. The stress and strain fields in the composite cylinders are analyzed using the ABAQUS software packages for considering the filament undulation and crossover. The paper presented results of buckling load of composite cylinders with different types of filament-winding patterns.
Findings
The result of the example shows that the stress distributions are uniform along the cylinder length and around the circumference when the analytical approach is based on the conventional FEA. The stress distributions are not uniform along the cylinder length and around the circumference for considering the filament undulation and crossover. The stress units are arranged in a regular geometric pattern around circumference and along the axis of rotation. The analysis of the effect of filament-winding mosaic patterns on the mechanical characteristics of composite cylindrical is presented in the paper.
Originality/value
The stress and strain fields in the composite cylinders were analyzed for considering the filament undulation and crossover. The buckling load of composite cylinders with different types of filament-winding patterns was presented in this paper.
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Compares the relative merits of CCD and CMOS based video cameras. Describes the design and fabrication of CMOS sensors which include considerable hardware computational elements…
Abstract
Compares the relative merits of CCD and CMOS based video cameras. Describes the design and fabrication of CMOS sensors which include considerable hardware computational elements on the same chip as the sensor array. These enable the device to output picture information in a form that is directly compatible with multimedia PC application requirements.
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André Luiz Castro, João Pedro Carvalho de Souza, Luís F. Rocha and Manuel F. Silva
This paper aims to propose an automated framework for agile development and simulation of robotic palletizing cells. An automatic offline programming tool, for a variety of robot…
Abstract
Purpose
This paper aims to propose an automated framework for agile development and simulation of robotic palletizing cells. An automatic offline programming tool, for a variety of robot brands, is also introduced.
Design/methodology/approach
This framework, named AdaptPack Studio, offers a custom-built library to assemble virtual models of palletizing cells, quick connect these models by drag and drop, and perform offline programming of robots and factory equipment in short steps.
Findings
Simulation and real tests performed showed an improvement in the design, development and operation of robotic palletizing systems. The AdaptPack Studio software was tested and evaluated in a pure simulation case and in a real-world scenario. Results have shown to be concise and accurate, with minor model displacement inaccuracies because of differences between the virtual and real models.
Research limitations/implications
An intuitive drag and drop layout modeling accelerates the design and setup of robotic palletizing cells and automatic offline generation of robot programs. Furthermore, A* based algorithms generate collision-free trajectories, discretized both in the robot joints space and in the Cartesian space. As a consequence, industrial solutions are available for production in record time, increasing the competitiveness of companies using this tool.
Originality/value
The AdaptPack Studio framework includes, on a single package, the possibility to program, simulate and generate the robot code for four different brands of robots. Furthermore, the application is tailored for palletizing applications and specifically includes the components (Building Blocks) of a particular company, which allows a very fast development of new solutions. Furthermore, with the inclusion of the Trajectory Planner, it is possible to automatically develop robot trajectories without collisions.
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Silvia Ronchi, Stefano Salata and Andrea Arcidiacono
The spatial development of urban areas affects the characteristics of landscape as well as people’s aesthetic perception of it. Specifically, sprawl results in an urban morphology…
Abstract
Purpose
The spatial development of urban areas affects the characteristics of landscape as well as people’s aesthetic perception of it. Specifically, sprawl results in an urban morphology which is diametrically opposed to the compact city model and which assumes several kinds of patterns: for example “striped”, “ribbon” or “leapfrogged” urban development. Assessing urban morphology in spatial terms is crucial to urban policy, while landscape metrics are the key to a comprehensive understanding of different urban development patterns. The purpose of this paper to design and test an urban morphology indicator (UMI) for the Lombardy Regional Landscape Plan.
Design/methodology/approach
The paper describes an UMI that can be used to identify the heterogeneity of built-up patterns according to urban porosity, fragmentation and patch shape. This UMI is a result of Esri ArcGIS 10.3 “grouping analysis” which works by applying a spatial statistical metric for clustering geometries in a given geographical area.
Findings
Morphological analysis was used in regional urban development policies with a view to minimising impact on surrounding ecosystems and preserving the natural environment and landscape. It defines 28 different urban morphology patterns in the region, which are divided into systems, polarities and urbanised units.
Originality/value
The proposed methodology differs from those traditionally used in qualitative/descriptive landscape planning and supports the identification of morphological features with quantitative statistical and spatial data, allowing a fine-scale assessment of complex metrics.
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This study describes and explains the ways in which three urban cultural institutions/museums provide opportunities to students for learning in the social studies. Through…
Abstract
This study describes and explains the ways in which three urban cultural institutions/museums provide opportunities to students for learning in the social studies. Through interviews, observations, and a content analysis of museum-produced materials, I examine the opportunities for various audiences (elementary, middle, and high school students) to engage with, and utilize, museum resources to facilitate meaningful social studies learning. This article includes a discussion of state standards, field trips, and use of technology to engage social studies learners. This study has implications for both classroom and museum-based educators.
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