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Article
Publication date: 23 August 2011

Shanchun Wei, Meng Kong, Tao Lin and Shanben Chen

This paper aims to develop a method to achieve automatic robotic welding and seam tracking so that three‐dimensional weld seam could be tracked without teaching and good…

Abstract

Purpose

This paper aims to develop a method to achieve automatic robotic welding and seam tracking so that three‐dimensional weld seam could be tracked without teaching and good welding formation could be accomplished.

Design/methodology/approach

Adaptive image processing method was used for various types of weld seam. Also the relationship between welding height and arc signal was calibrated. Through the decomposition and synthesis, three‐dimensional space type weld seam could be extracted and tracked well. The workpiece without teaching was finally tracked precisely and in a timely way with use of the fuzzy controller.

Findings

Composite sensing technology including arc and visual sensing had obvious advantages. Image processing method could be used for tracking plane weld seam efficiently while arc sensing could characterize welding height. Through the coupled controlling algorithm, arc sensing and visual sensing could be fused effectively.

Research limitations/implications

How to couple information more accurately and quickly was still one of the most important problems in composite sensing technology.

Practical implications

Composite sensing technology could reduce costs to achieve weld seam instead such expensive device as laser sensor. The simulating parts of scalloped segment of bottom board for rockets were tracked in the project. Once more adaptive algorithms were developed, more complicated practical workpieces could be dealt with in robotic welding which promotes the application of industry robots.

Originality/value

A useful method for three‐dimensional space type weld seam tracking without teaching was developed. The whole procedure of adaptive image processing method was simple but efficient and robust. The coupled controlling strategy addressed could accomplish seam tracking by composite sensing technology.

Details

Industrial Robot: An International Journal, vol. 38 no. 5
Type: Research Article
ISSN: 0143-991X

Keywords

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Article
Publication date: 1 February 2007

Silvia Rita Viola, Sabine Graf, Kinshuk and Tommaso Leo

Learning styles are incorporated more and more in e‐education, mostly in order to provide adaptivity with respect to the learning styles of students. For identifying…

Abstract

Learning styles are incorporated more and more in e‐education, mostly in order to provide adaptivity with respect to the learning styles of students. For identifying learning styles, at the present time questionnaires are widely used. While such questionnaires exist for most learning style models, their validity and reliability is an important issue and has to be investigated to guarantee that the questionnaire really assesses what the learning style theory aims at. In this paper, we focus on the Index of Learning Styles (ILS), a 44‐item questionnaire to identify learning styles based on Felder‐ Silverman learning style model. The aim of this paper is to analyse data gathered from ILS by a data‐driven approach in order to investigate relationships within the learning styles. Results, obtained by Multiple Correspondence Analysis and cross‐validated by correlation analysis, show the consistent dependencies between some learning styles and lead then to conclude for scarce validity of the ILS questionnaire. Some latent dimensions present in data, that are unexpected, are discussed. Results are then compared with the ones given by literature concerning validity and reliability of the ILS questionnaire. Both the results and the comparisons show the effectiveness of data‐driven methods for patterns extraction even when unexpected dependencies are found and the importance of coherence and consistency of mathematical representation of data with respect to the methods selected for effective, precise and accurate modelling.

Details

Interactive Technology and Smart Education, vol. 4 no. 1
Type: Research Article
ISSN: 1741-5659

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Article
Publication date: 10 October 2008

Kenneth D. Strang

The purpose of this paper is to inform international student study strategies as well as course design and instructional approach.

Abstract

Purpose

The purpose of this paper is to inform international student study strategies as well as course design and instructional approach.

Design/methodology/approach

Multiple research methods are applied, starting with exploratory data analysis, principal component analysis, confirmatory ordinal factor analysis, then recursive regression.

Findings

The meta‐cognitive impacts of international learning styles on academic performance over two courses are proven.

Research limitations/implications

The learning styles of multicultural university students are assessed using an online a priori instrument to determine predictive impact on academic performance across different courses.

Practical implications

The implications of the dendrogram models are briefly explained with respect to student counselling, student study strategies and teaching approaches. The findings are discussed with respect to rival learning style theories and to appease criticisms of meta‐analysis reviews.

Originality/value

Several statistically significant models were created including varimax and promax rotation solutions from ordinal factor analysis, as well as item response and latent factor dendrograms from recursive regression.

Details

Multicultural Education & Technology Journal, vol. 2 no. 4
Type: Research Article
ISSN: 1750-497X

Keywords

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Article
Publication date: 15 January 2020

Clarinda Rodrigues, Heather Skinner, Charles Dennis and T.C. Melewar

The purpose of this paper is to propose a new framework on sensorial place brand identity.

Abstract

Purpose

The purpose of this paper is to propose a new framework on sensorial place brand identity.

Design/methodology/approach

This conceptual paper draws from sensory marketing and brand identity theories to propose an integrative model to develop sensorial place brand identity.

Findings

By relying on a broad spectrum of the literature, the study supports the notion that sensorial place brand identity is a bottom-up approach to branding that involves several enactment stakeholders and key influences as co-creators in the process of delivering sensory place branding messages based on a strong and unique place brand identity. This leads to the presentation of a provisional framework linking sensorial place identity, experiencescapes and multisensory place brand image.

Originality/value

This novel approach to place brand identity follows a holistic approach by considering several enactment stakeholders and key influencers as co-creators in the process of branding a place through the senses.

Details

Journal of Place Management and Development, vol. 13 no. 3
Type: Research Article
ISSN: 1753-8335

Keywords

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Article
Publication date: 6 May 2014

Edgar A. Martínez-García, Luz Abril Torres-Méndez and Mohan Rajesh Elara

The purpose of this paper is to establish analytical and numerical solutions of a navigational law to estimate displacements of hyper-static multi-legged mobile robots…

Abstract

Purpose

The purpose of this paper is to establish analytical and numerical solutions of a navigational law to estimate displacements of hyper-static multi-legged mobile robots, which combines: monocular vision (optical flow of regional invariants) and legs dynamics.

Design/methodology/approach

In this study the authors propose a Euler-Lagrange equation that control legs’ joints to control robot's displacements. Robot's rotation and translational velocities are feedback by motion features of visual invariant descriptors. A general analytical solution of a derivative navigation law is proposed for hyper-static robots. The feedback is formulated with the local speed rate obtained from optical flow of visual regional invariants. The proposed formulation includes a data association algorithm aimed to correlate visual invariant descriptors detected in sequential images through monocular vision. The navigation law is constrained by a set of three kinematic equilibrium conditions for navigational scenarios: constant acceleration, constant velocity, and instantaneous acceleration.

Findings

The proposed data association method concerns local motions of multiple invariants (enhanced MSER) by minimizing the norm of multidimensional optical flow feature vectors. Kinematic measurements are used as observable arguments in the general dynamic control equation; while the legs joints dynamics model is used to formulate the controllable arguments.

Originality/value

The given analysis does not combine sensor data of any kind, but only monocular passive vision. The approach automatically detects environmental invariant descriptors with an enhanced version of the MSER method. Only optical flow vectors and robot's multi-leg dynamics are used to formulate descriptive rotational and translational motions for self-positioning.

Details

International Journal of Intelligent Unmanned Systems, vol. 2 no. 2
Type: Research Article
ISSN: 2049-6427

Keywords

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Article
Publication date: 30 September 2014

Yungwei Hao and Kathy Jackson

This study aims to add to the body of literature by examining students’ satisfaction with e-textbooks. As higher education evolves, one instructional tool, the classic…

Abstract

Purpose

This study aims to add to the body of literature by examining students’ satisfaction with e-textbooks. As higher education evolves, one instructional tool, the classic textbook, is undergoing various transformations. In today’s classrooms, many e-textbooks are in use and there are implications.

Design/methodology/approach

A researcher-developed instrument measured 115 undergraduate students’ satisfaction levels for e-textbooks used in two courses, and a learning styles instrument was given to identify student learning preferences.

Findings

Through factor analysis, a few dimensions emerged regarding factors related to satisfaction. The factors included features, usability and learning facilitation provided by the e-textbooks. In general, students had a moderately above-neutral, positive attitude toward the e-textbooks. Gender, grade point average, time spent weekly reading e-textbooks and a few learning style tendencies can significantly predict, to some extent, different dimensions of satisfaction.

Practical implications

Usability design of e-textbooks plays a key role in student satisfaction toward digital materials. Moreover, instructors need to use meaningful instructional activities as they adopt the usage of e-textbooks.

Originality/value

The findings can help shed light on ways to enable students to become more satisfied with digital textbooks and can help policymakers and instructors evaluate and effectively adopt the appropriate digital materials to meet individual needs.

Details

Journal of Science & Technology Policy Management, vol. 5 no. 3
Type: Research Article
ISSN: 2053-4620

Keywords

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Abstract

Details

Traffic Safety and Human Behavior
Type: Book
ISBN: 978-1-78635-222-4

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Book part
Publication date: 5 October 2007

David Shinar

Abstract

Details

Traffic Safety and Human Behavior
Type: Book
ISBN: 978-0-08-045029-2

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Article
Publication date: 23 March 2012

Bertil Hultén

The presented research aims to depict shoppers' touching behaviour in relation to the introduction of visual and olfactory sensory cues at point‐of‐purchase in a retail…

Abstract

Purpose

The presented research aims to depict shoppers' touching behaviour in relation to the introduction of visual and olfactory sensory cues at point‐of‐purchase in a retail setting. In the field of retailing research, there is a paucity of knowledge on how visual and olfactory sensory cues impact on consumers' touch behaviour.

Design/methodology/approach

The author presents a review of theoretically relevant work from retailing and consumer psychology, and an original study examining the impact of visual and olfactory sensory cues on consumer touch behaviour. The study was a field experiment in the glass department of the Swedish retailer IKEA. The design was quasi‐experimental with a convenience sample of shoppers assigned to a control group (n=451) and an experimental group (n=435).

Findings

In the reported study, the author finds significant differences between shoppers' touching behaviour in a manipulated point‐of‐purchase compared to a conventional one. The findings show that visual and olfactory sensory cues have a positive impact on shoppers' touching behaviour, purchase intentions and total sale.

Research limitations/implications

The findings demonstrate that sensory cues exert a positive impact on consumers' desire to touch. Sensory cues frame consumers' affective responses and decision making through involving the sense of touch.

Practical implications

The findings provide guidelines for managers of retail and service outlets, concerning the benefits of sensory cues in enhancing shoppers' touching behaviour at point‐of‐purchase.

Originality/value

The research demonstrates that the introduction of visual and olfactory sensory cues impact consumers' touch behaviour at point‐of‐purchase in a retail setting.

Details

International Journal of Retail & Distribution Management, vol. 40 no. 4
Type: Research Article
ISSN: 0959-0552

Keywords

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Book part
Publication date: 1 March 2013

Nicole Doerr, Alice Mattoni and Simon Teune

The news of recent mobilizations in Arab, European, and North-American countries quickly spread across the globe. Well before written reports analyzing the unfolding…

Abstract

The news of recent mobilizations in Arab, European, and North-American countries quickly spread across the globe. Well before written reports analyzing the unfolding mobilizations, images of protests circulated widely through television channels, print newspapers, internet websites, and social media platforms. Pictures and videos of squares full of people protesting against their governments became the symbols of a new wave of contention that quickly spread from Tunisia to many other countries. Pictures and videos showing the gathering of people in Tahrir square (Egypt), Puerta del Sol (Spain), and Zuccotti Park (United States) quickly became vivid tools of “countervisuality” (Mirzoeff, 2011) that opposed the roaring grassroots political participation of hundreds of thousands people to the silent decisions taken in government and corporation buildings by small groups of politicians and managers. The presence, and relevance, of images in mobilizations of social movements is no novelty. Encounters with social movements have always been intrinsically tied to the visual sense. Activists articulate visual messages, their activities are represented in photos and video sequences, and they are ultimately rendered visible, or invisible, in the public sphere. Social movements produce and evoke images, either as a result of a planned, explicit, and strategic effort, or accidentally, in an unintended or undesired manner. At the same time, social movements are perceived by external actors and dispersed audiences via images which are produced both by themselves and others.

Details

Advances in the Visual Analysis of Social Movements
Type: Book
ISBN: 978-1-78190-636-1

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