Luming Wang and Adam Finn
The purpose of this study is to propose a new item response theory-based model to facilitate brand equity comparison among brands in different product categories. Brand equity has…
Abstract
Purpose
The purpose of this study is to propose a new item response theory-based model to facilitate brand equity comparison among brands in different product categories. Brand equity has been defined as the value a brand adds upon a product. This definition provides the theoretical basis for comparing brands across product categories. Researchers have measured brand equity from three major approaches: finance, economics and psychology. Unlike the first two approaches that have developed methods to facilitate cross-product-category brand equity comparison, no methodology has been identified in the psychology approach (consumer-based brand equity, CBBE), and this study will fill this gap.
Design/methodology/approach
We used survey method and collected data from both soft drink and car product categories to empirically demonstrate our method.
Findings
A new item response theory-based model to facilitate brand equity comparison among brands in different product categories is proposed.
Originality/value
Considering consumers are the most widely considered stakeholder group in the existing brand equity literature, the lack of cross-product category research in consumer-based brand equity (CBBE) area constrains the use of CBBE for firms managing multiple brands across product categories. This proposed model is the first one to address this limitation.
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Luming Wang and Adam Finn
Unlike prior consumer-based brand equity (CBBE) research that examines well-known brands in different product categories, the purpose of this paper is to focus on the…
Abstract
Purpose
Unlike prior consumer-based brand equity (CBBE) research that examines well-known brands in different product categories, the purpose of this paper is to focus on the within-product category differences in terms of the sources of CBBE.
Design/methodology/approach
To facilitate the comparison, the paper proposes a hybrid measurement model of CBBE that systematically integrates various existing CBBE dimensions and examines the substantive difference among master brands and their sub-brands within a product category. The model distinguishes the latent CBBE construct from its dimensions, and separates its formative (causes of CBBE) from its reflective (effects of CBBE) dimensions, based on their causal relationship with the construct.
Findings
The paper collects CBBE data for multiple soft drink master brands and sub-brands. The paper finds significant differences among them and provides a detailed view that has not been revealed to the marketers before.
Originality/value
The paper not only examines a more realistic context for consumers’ marketplace choice but also is more relevant to brand managers who closely monitor their direct competitors’ performance.
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Xiaotong Jiang, Xiaosheng Cheng, Qingjin Peng, Luming Liang, Ning Dai, Mingqiang Wei and Cheng Cheng
It is a challenge to print a model with the size that is larger than the working volume of a three-dimensional (3D) printer. The purpose of this paper is to present a feasible…
Abstract
Purpose
It is a challenge to print a model with the size that is larger than the working volume of a three-dimensional (3D) printer. The purpose of this paper is to present a feasible approach to divide a large model into small printing parts to fit the volume of a printer and then assemble these parts into the final model.
Design/methodology/approach
The proposed approach is based on the skeletonization and the minima rule. The skeleton of a printing model is first extracted using the mesh contraction and the principal component analysis. The 3D model is then partitioned preliminarily into many smaller parts using the space sweep method and the minima rule. The preliminary partition is finally optimized using the greedy algorithm.
Findings
The skeleton of a 3D model can effectively represent a simplified version of the geometry of the 3D model. Using a model’s skeleton to partition the model is an efficient way. As it is generally desirable to have segmentations at concave creases and seams, the cutting position should be located in the concave region. The proposed approach can partition large models effectively to well retain the integrity of meaningful parts.
Originality/value
The proposed approach is new in the rapid prototyping field using the model skeletonization and the minima rule. Based on the authors’ knowledge, there is no method that concerns the integrity of meaningful parts for partitioning. The proposed method can achieve satisfactory results by the integrity of meaningful parts and assemblability for most 3D models.
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Luming Li, Nikhil Gupta and Tobias Wasser
Mental health providers will be increasingly called on to lead psychiatric efforts to improve care and care redesign. The Accreditation Council for Graduate Medical Education…
Abstract
Purpose
Mental health providers will be increasingly called on to lead psychiatric efforts to improve care and care redesign. The Accreditation Council for Graduate Medical Education (ACGME) in the USA requires residency programs to teach quality improvement (QI) and systems-based practice (SBP) to all trainees as part of training requirements. However, teaching QI and SBP concepts without a clinical context can be challenging with low trainee engagement. The paper aims to discuss these issues.
Design/methodology/approach
The authors describe curricular redesign with a specialized educator faculty task force that aimed to create a longitudinal curriculum that integrated abstract QI concepts into clinical practice settings, and helped trainees apply SBP concepts throughout residency. In addition, the authors describe the utilization of resident prescriber profiles to contextualize clinical practice habits, and the implementation of an educational case conference series with emphasis on QI-specific educational tools such as root cause analysis (RCA).
Findings
Formal resident feedback from 2016 to 2018 has demonstrated improved trainee satisfaction. The resulting curricular change has also led to a new chief resident role and sustained engagement in QI and SBP education by trainees.
Research limitations/implications
The faculty task force and curricular design changes described in this paper were implemented at one large academic institution. Thus, additional assessment and research is necessary to address the generalizability of the interventions described.
Originality/value
Since QI and SBP are becoming more prominent requirements for medical education accrediting bodies such as the ACGME, the innovative curricular design can benefit other residency and medical student education programs that attempt to integrate clinical practice with education incorporating QI and SBP concepts.
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Jingrui Hu and Thomas Thurnell-Read
The authors analyse narratives of Chinese consumers of Vintage Costume Jewellery to show how value is attributed to vintage items, often in direct contrast to contemporary luxury…
Abstract
The authors analyse narratives of Chinese consumers of Vintage Costume Jewellery to show how value is attributed to vintage items, often in direct contrast to contemporary luxury goods. Examining a range of factors in this process, including uniqueness, scarcity, historical specificity, social meaning and cultural legitimacy, authenticity is shown to be central to the positioning of jewellery and those who collect, trade and appreciate it as tasteful and discerning consumers.
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Qiang Yang, Tianfei Xia, Lijia Zhang, Ziye Zhou, Dequan Guo, Ao Gu, Xucai Zeng and Ping Wang
The purpose of this paper is to use the corresponding magnetic sensor and detection method to detect and image the defects of small diameter pipelines. Urban gas pipeline is an…
Abstract
Purpose
The purpose of this paper is to use the corresponding magnetic sensor and detection method to detect and image the defects of small diameter pipelines. Urban gas pipeline is an energy transportation tool for urban industrial production and social life, which is closely related to urban safety. Preventing the occurrence of urban gas pipeline transportation accidents and carrying out pipeline defect detection are of great significance for the urban economic and social stability. To perform pipeline defect detection, the magnetic flux leakage internal detection method is generally used in the detection of large-diameter long-distance oil and gas pipelines. However, in terms of the internal detection of small-diameter pipelines, due to the heavy weight, large structure of the detection device and small pipe diameter, the detection is more difficult.
Design/methodology/approach
In order to solve the above matters, self-made three-dimensional magnetic sensor and three-dimensional magnetic flux leakage imaging direct method are proposed for studying the defect identification. Firstly, for adapting to the diameter range of small-diameter pipelines, and containing the complete information of the defect, a self-made three-dimensional magnetic sensor is made in this paper to improve the accuracy of magnetic flux leakage detection. And on the basis of it, a small diameter pipeline defect detection system is built. Secondly, as detection signal may be affected by background magnetic field interference and the jitter interference, the complete ensemble empirical mode decomposition with adaptive noise method is utilized to screen the detected signal. As a result, the useful signal is reconstructed and the interference signal is removed. Finally, the defect contour inversion imaging of detection is realized based on the direct method of three-dimensional magnetic flux leakage imaging, which includes three-dimensional magnetic flux leakage detection data and data segmentation recognition.
Findings
The three-dimensional magnetic flux leakage imaging experimental results shown that, compared to the actual defects, the typical defects, irregular defects and crack groove defects can be analyzed by the magnetic flux leakage defect contour imaging method in qualitative and quantitative way respectively, which provides a new idea for the research of defect recognition.
Originality/value
A three-dimensional magnetic sensor is made to adapt the diameter range of small diameter pipeline, and based on it, a small-diameter pipeline defect detection system is built to collect and display the magnetic flux leakage signal.
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Chandrasekhar Krishnamurti, Aleksandar Sevic and Zeljko Sevic
This article questions the validity of regression models when high correlations exist between independent variables and presents the application of VAR as an alternative technique…
Abstract
This article questions the validity of regression models when high correlations exist between independent variables and presents the application of VAR as an alternative technique through the comparison of two groups of selected stocks that represent components of Dow Jones and S&P 500 indices, respectively. The results indicate that panel regressions face serious specification problems, while the impulse response function underlines that the shock to the volume innovation has a mostly positive impact on the volatility in both S&P and Dow Jones sample, but the tendency cannot be easily accounted for. The positive impact of volatility shocks on the inter market depth is rather unexpected, but it may be associated with an increase in volume that does not enormously enhance the spread up to the point where it will be too costly for market‐makers to trade, and accordingly, quickly narrows the spread to absorb new liquidity influx in the market. In the Granger causality tests Dow Jones stocks with comparatively larger average volume depth values and price levels provide slightly stronger relations between analyzed variables compared to the stocks included in the S&P sample.
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David Ukwungwu, Sobhan Emadmostoufi, Uwe Reisgen and Kay Hameyer
This paper aims to analyze the influence of welding-induced mechanical stress of a magnetic core material on the performance behavior of a permanent magnet excited synchronous…
Abstract
Purpose
This paper aims to analyze the influence of welding-induced mechanical stress of a magnetic core material on the performance behavior of a permanent magnet excited synchronous machine (PMSM). Welding, interlocking, clinching and the use of adhesives are state-of-the-art packaging technologies used in the manufacturing of electrical machines. However, the packaging processes degrade the electromagnetic properties of the electric steel sheets, thereby decreasing the performance and achievable range of the electric vehicle.
Design/methodology/approach
In this paper, an approach that maps the local changes in magnetic properties due to welding induced stress with the stress values is developed. The welding process induces internal stress inside the steel sheet due to the diffusion of thermal energy into the sheets. Other effects are the changes in the micro structures of the steel sheets (grain sizes). These induced mechanical stresses lead to significant deterioration of the electromagnetic properties. They also lead to an increase in iron loss attributed to steel lamination.
Findings
A low speed (city), a high-speed (highway) and WLTC-c3 driving cycle will be used to analyze the effects of the induced stresses on the machine efficiency at the different operating conditions. A high-speed PMSM with a maximum speed of 26,000 min−1 and maximum torque of 130 Nm is designed for this study.
Originality/value
The value of this study is in the development of a local varying modeling approach that analyses the influence of weld-induced stress on the performance of electrical machines. Its originality is evident in the mapping methodology. This will enable an application dependent improvement possibilities due to the understanding of the impact of weld-induced stress on the electromagnetic properties of weld-packaged core.
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This study aims to understand the epistemic foundation of the classification applied in the first Chinese library catalogue, the Seven Epitomes (Qilue).
Abstract
Purpose
This study aims to understand the epistemic foundation of the classification applied in the first Chinese library catalogue, the Seven Epitomes (Qilue).
Design/methodology/approach
Originating from a theoretical stance that situates knowledge organization in its social context, the study applies a multifaceted framework pertaining to five categories of textual data: the Seven Epitomes; biographical information about the classificationist Liu Xin; and the relevant intellectual, political, and technological history.
Findings
The study discovers seven principles contributing to the epistemic foundation of the catalogue's classification: the Han imperial library collection imposed as the literary warrant; government functions considered for structuring texts; classicist morality determining the main classificatory structure; knowledge perceived and organized as a unity; objects, rather than subjects, of concern affecting categories at the main class level; correlative thinking connecting all text categories to a supreme knowledge embodied by the Six Classics; and classicist moral values resulting in both vertical and horizontal hierarchies among categories as well as texts.
Research limitations/implications
A major limitation of the study is its focus on the main classes, with limited attention to subclasses. Future research can extend the analysis to examine subclasses of the same scheme. Findings from these studies may lead to a comparison between the epistemic approach in the target classification and the analytic one common in today's bibliographic classification.
Originality/value
The study is the first to examine in depth the epistemic foundation of traditional Chinese bibliographic classification, anchoring the classification in its appropriate social and historical context.