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Article
Publication date: 7 August 2017

Li Yinghui, Chunping Xie and Xinjin Liu

The purpose of this paper is to know airflow field and its distribution of pneumatic compact spinning systems. Complete compact spinning (CCS) and four-line rollers…

Abstract

Purpose

The purpose of this paper is to know airflow field and its distribution of pneumatic compact spinning systems. Complete compact spinning (CCS) and four-line rollers compact spinning (FRCS) are both two kinds of pneumatic compact spinning systems, which utilizes airflow in condensing equipment to condense fiber bundle and improve yarn properties.

Design/methodology/approach

The paper opted for an exploratory study using finite element method, the airflow field in the condensing area of CCS and FRCS were simulated. First, a periodic movement of the fibers in bundle in condensing area was detected, and the yarn tracks were described veritably under the high-speed-video-camera and AutoCAD Software. Then the physical models of the condensing zone were constructed according to the physical parameters of the practical system. The simulation of airflow velocities were extracted along the yarn tracks using ANSYS Software. Finally, the numerical results were verified by spinning experiments.

Findings

The results show that the negative velocity component along the Y-axis helps keeping beneficial hairiness. CCS has higher negative velocity value and more abundant beneficial hairiness than FRCS. The velocity component in the X-axis direction has a direct effect on yarn evenness. For the same liner density of CCS and FRCS, the larger the value of the velocity component on X-axis is, the better the yarn evenness is. For 9.7tex, CCS has larger velocity component in the X-axis direction and better yarn evenness than FRCS, showing that CCS is more suitable for spinning fine count yarn. The velocity component in the Z-axis direction has a direct effect on breaking strength. CCS has little velocity component in the Z-axis direction and little breaking strength than FRCS.

Originality/value

To know airflow field and its distribution by finite element method is helpful to investigate the condensing principles of the fiber bundle and improve yarn properties.

Details

International Journal of Clothing Science and Technology, vol. 29 no. 4
Type: Research Article
ISSN: 0955-6222

Keywords

Content available
Article
Publication date: 1 August 2006

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224

Abstract

Details

Disaster Prevention and Management: An International Journal, vol. 15 no. 4
Type: Research Article
ISSN: 0965-3562

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Article
Publication date: 13 June 2016

Bing Shi, Dan Zhang, Hongling Xie and Yinghui Zhou

This study aims to examine factors affecting Chinese adolescents’ purchase intention for local brands; this study focuses on the effects of perceived social status value…

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1526

Abstract

Purpose

This study aims to examine factors affecting Chinese adolescents’ purchase intention for local brands; this study focuses on the effects of perceived social status value and materialistic values.

Design/methodology/approach

A theoretical model relating perceived social status value of brands to purchase intention, including materialistic values as a moderator, was developed and tested, using a sample of 587 Chinese adolescent respondents. Another experimental study examined the variability of the moderation of materialistic values across different levels of peer pressure in a product usage occasion.

Findings

Perceived social status value associated with local and foreign brands significantly influences purchase intention for local brands. Moreover, influence of perceived social status value of local versus foreign brands on local brand purchase intention is greater for materialistic adolescents. Additionally, the moderation of materialistic values is found in a product usage occasion with high peer pressure, but not in an occasion with low peer pressure.

Research limitations/implications

The findings show that perceived social status value associated with brands shapes purchase intention for local brands. The moderating effect of materialistic values is complex and suggests further research. The study’s scope is limited to Chinese adolescents.

Practical implications

The findings provide understanding of the drivers of purchase intention, and thus serve as a guideline for Chinese firms and foreign marketers seeking to enter the growing Chinese market, as well as consumer educators in China.

Originality/value

This study contributes to the limited empirical research into the factors shaping country-of-origin effects. Moreover, the findings suggest the need to consider the moderating role of materialistic values on purchase intention for local brands.

Details

Journal of Consumer Marketing, vol. 33 no. 4
Type: Research Article
ISSN: 0736-3761

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Article
Publication date: 10 August 2020

Yinghui Zhang, Euisoo Kim and Zunming Xing

Image congruence is one central metrics that significantly influences image transfer. Nevertheless, studies on impact of image congruence on consumers' attitudinal and…

Abstract

Purpose

Image congruence is one central metrics that significantly influences image transfer. Nevertheless, studies on impact of image congruence on consumers' attitudinal and behavioral components in the context of sport tourism remain few. Therefore, this study aims to investigate the relationship among image congruence between sport event and host city, spectators' attitude toward the event and city and their intention to revisit and recommend the event and city. A mediating role of attitude in the relationship between image congruence and behavioral intention was also examined.

Design/methodology/approach

The study selected non-local spectators of the F1 Chinese Grand Prix and Shanghai ATP Masters 1000 as the participants. A total of 491 valid questionnaires were obtained from the survey of two events, including 222 from F1 Chinese Grand Prix and 269 from Shanghai ATP Masters 1000. Among respondents, 360 were Chinese spectators from other regions (73.3%) and 131 were international spectators (26.7%). The data were analyzed via descriptive statistics, correlations, factor analysis, exploratory factor analysis (EFA), confirmatory factor analysis (CFA), hierarchical regression analysis and ANOVA.

Findings

The results showed that image congruence between sports event and host city had a positive impact on spectators' attitude toward and intention to recommend the city; but it had no significant impact on attitude toward event, intention to revisit and recommend the event and intention to revisit the city. Attitude toward event had a positive impact on intention to revisit and recommend the event, and attitude toward host city had a positive impact on intention to revisit and recommend the city. In addition, attitude toward host city fully mediated the relationship between image congruence and intention to recommend the city.

Originality/value

The current study provides a meaningful contribution to the existing literature by examining the impact of image congruence on spectators' attitudinal and behavioral components in the context of sport tourism.

Details

International Journal of Sports Marketing and Sponsorship, vol. 22 no. 1
Type: Research Article
ISSN: 1464-6668

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Article
Publication date: 6 February 2017

DongHun Lee, Yinghui Zhang, Michael Cottingham, JungKun Park and Ho Yeol Yu

Existing studies suggest the importance of research related to values and goals and their impacts on consumer involvement. However, cross-cultural examination of values…

Abstract

Purpose

Existing studies suggest the importance of research related to values and goals and their impacts on consumer involvement. However, cross-cultural examination of values and goals in the context of sport is scarce. To broaden our understanding of the cultural impact of values and goals on sport involvement, the purpose of this paper is to compare perspectives between Easterners (Chinese) and Westerners (Americans).

Design/methodology/approach

This exploratory research utilized both online and written surveys to collect two convenience samples from 281 American and 636 Chinese participants. Analysis included descriptive statistics, correlations, and regression analyses.

Findings

Results indicated both populations perceived values and goals differently; Chinese responded less favorably to values and goals than American counterparts. Values and goals predicted cognitive and behavioral sport involvement with variance in each population. Results generally supported a large cultural variation between the cultures. Lastly, similarities and differences in the perceived importance of values and goals and their subsequent impacts on cognitive and behavioral sport involvement suggest a need for a unique managerial approach when American businesses enter new cultural boundaries like China.

Originality/value

This research is significant because studies exploring values and goals and their influences on sport consumption at the cross-cultural level are still limited in sport literature. Furthermore, an empirical examination of the impact of values and goals on sport consumers across cultures will help increase generalizability of the findings to sport literature.

Details

International Journal of Sports Marketing and Sponsorship, vol. 18 no. 1
Type: Research Article
ISSN: 1464-6668

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Article
Publication date: 25 September 2018

Long Zheng, Yihang Gao, Yinghui Zhong, Guolong Lu, Zhenning Liu and Luquan Ren

The purpose of this study is to elucidate the size effect (groove width, unit length and area density) of the hexagonal texture on tribological properties under lubrication.

Abstract

Purpose

The purpose of this study is to elucidate the size effect (groove width, unit length and area density) of the hexagonal texture on tribological properties under lubrication.

Design/methodology/approach

The tribological properties of nine hexagonal textures with different hexagon lengths and groove widths have been investigated under mixed lubrication to elucidate the size effect.

Findings

Overall, the friction coefficient decreases as the groove width increases within the examined range, whereas the hexagon length shows an optimal value around 3 mm. In particular, one hexagonal texture (3 × 3 mm) exhibits lower friction coefficients and less wear losses than the others. Interestingly, two hexagonal textures of similar area density (1 × 1 mm and 3 × 3 mm) yield the worst and best tribological performances, respectively, which can be explained by the simulated distribution of equivalent stress.

Originality/value

The tribological properties of nine hexagonal textures are examined under lubrication. The 3 × 3 texture exhibits lower friction coefficient and wear loss than the others. Two textures of similar area density yield the worst and best tribological performances. The results agree with the simulated distribution of equivalent stress.

Details

Industrial Lubrication and Tribology, vol. 70 no. 9
Type: Research Article
ISSN: 0036-8792

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Article
Publication date: 29 June 2021

Javad Tayebi, Chao Han and Yuanjin Yu

The purpose of this paper is agile attitude control design with the novel three-dimensional (3D) magnetically suspended wheel (MSW) that is the preferred type for agile…

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23

Abstract

Purpose

The purpose of this paper is agile attitude control design with the novel three-dimensional (3D) magnetically suspended wheel (MSW) that is the preferred type for agile maneuvering compared to conventional control moment gyro due to frictionless, low vibration and long lifetime. This system does not require a separate steering law for pyramid arrangement to derive tilt angles. It is also conducting an agile maneuver with high accuracy despite the high-frequency disturbances.

Design/methodology/approach

In this paper, a disturbance observer-based attitude stabilization method is proposed for an agile satellite with a pyramid cluster of the novel 3D magnetically suspended wheel actuator. This strategy includes a disturbance observer and a linear quadratic regulator controller. The rotor shaft deflection of MSW is actively controlled to reduce vibration and producing gyro torque. The deflection angle of the pyramid cluster MSWs considered as control parameters. The closed-loop stability is proved by using the Lyapunov strategy. The efficiency and performance of the offered method verified by numerical simulation via MATLAB/SIMULINK software.

Findings

According to simulation results, the disturbance observer-based control controller stabilized the system with high accuracy and optimal tilt angles without any extra steering law equation. Hence, the system speed is increased, and the system error is minimized without separate steering law.

Practical implications

The magnetically suspended wheel is a new kind of inertia actuator for attitude control that has several benefits such as frictionless, high-speed rotor, clean environment and low vibration compared to the traditional wheel. It has complex nonlinear dynamics that cause have complicated controller design. The proposed strategy stabilizes the system and conducting an agile maneuver with high precision despite the high-frequency disturbances. It is applicable for some missions requiring high accuracies, like Earth observation and the solar observation mission that require a very accurate pointing control and a long lifetime.

Originality/value

This paper is the initial paper to design a pyramid array for magnetically suspended wheels. Compared to other research, this method doesn’t need a separate steering law of the MSWs cluster and presented optimal tilt angles with less computational. Also, it designs a disturbance observer-based controller for this system that proposed high accuracy and agile stabilization.

Details

Aircraft Engineering and Aerospace Technology, vol. 93 no. 5
Type: Research Article
ISSN: 1748-8842

Keywords

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Article
Publication date: 1 August 2016

Miao Cui, Crystal Dong, Yuekun Liu and Shujuan Wang

An increasing number of Chinese enterprises are involved in cross-border mergers and acquisitions (M&As). However, few Chinese enterprises have achieved successful…

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1279

Abstract

Purpose

An increasing number of Chinese enterprises are involved in cross-border mergers and acquisitions (M&As). However, few Chinese enterprises have achieved successful integration, which plays a critical role in enhancing performance. The important field of cultural integration is currently facing major challenges. To identify the reasons for these challenges, studies have analyzed why cultural integration succeeds or fails and have suggested that cultural differences between acquiring and acquired enterprises are the primary obstacles to cultural integration. However, it is unclear how success can be achieved. The paper aims to focus on cultural integration from the perspective of acculturation to describe the penetration of cultural elements in M&As.

Design/methodology/approach

In adopting acculturation as our theoretical lens, the authors use the case study method to answer the following research question: “how can the cultural integration of Chinese enterprises be successfully achieved?” Two typical cases are examined: Lenovo’s cultural integration with IBM’s personal computer (PC) division and Haier’s cultural integration with Sanyo home appliance. First, using the exploratory case study method, the Lenovo–IBM PC division case is analyzed. The characteristics and relationships between cultural environments, employee adoption methods and acculturation patterns are summarized to reveal a cultural integration path. Second, the Haier–Sanyo home appliance case is analyzed using the confirmative case study method to test the findings of the Lenovo–IBM PC division case.

Findings

The results indicate that it is critical to achieve a dynamic fit between cultural environments, employee adoption methods and acculturation patterns during each stage of cultural integration (exploration, experimentation, reinforcement and fixing). The three constructs of these stages reflect the following evolutionary paths: “isolate-introduce-learning-chance taking”, “detecting-icebreaking-interacting-remodeling” and “specialized sections-senior managers-managers-employees”.

Originality/value

These findings contribute to the development of cultural integration and acculturation theories and serve as a reference for Chinese enterprises wishing to implement cultural integration strategies.

Details

Nankai Business Review International, vol. 7 no. 3
Type: Research Article
ISSN: 2040-8749

Keywords

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Article
Publication date: 15 October 2021

Rangayya Rangayya, Virupakshappa Virupakshappa and Nagabhushan Patil

One of the challenging issues in computer vision and pattern recognition is face image recognition. Several studies based on face recognition were introduced in the past…

Abstract

Purpose

One of the challenging issues in computer vision and pattern recognition is face image recognition. Several studies based on face recognition were introduced in the past decades, but it has few classification issues in terms of poor performances. Hence, the authors proposed a novel model for face recognition.

Design/methodology/approach

The proposed method consists of four major sections such as data acquisition, segmentation, feature extraction and recognition. Initially, the images are transferred into grayscale images, and they pose issues that are eliminated by resizing the input images. The contrast limited adaptive histogram equalization (CLAHE) utilizes the image preprocessing step, thereby eliminating unwanted noise and improving the image contrast level. Second, the active contour and level set-based segmentation (ALS) with neural network (NN) or ALS with NN algorithm is used for facial image segmentation. Next, the four major kinds of feature descriptors are dominant color structure descriptors, scale-invariant feature transform descriptors, improved center-symmetric local binary patterns (ICSLBP) and histograms of gradients (HOG) are based on clour and texture features. Finally, the support vector machine (SVM) with modified random forest (MRF) model for facial image recognition.

Findings

Experimentally, the proposed method performance is evaluated using different kinds of evaluation criterions such as accuracy, similarity index, dice similarity coefficient, precision, recall and F-score results. However, the proposed method offers superior recognition performances than other state-of-art methods. Further face recognition was analyzed with the metrics such as accuracy, precision, recall and F-score and attained 99.2, 96, 98 and 96%, respectively.

Originality/value

The good facial recognition method is proposed in this research work to overcome threat to privacy, violation of rights and provide better security of data.

Details

International Journal of Intelligent Computing and Cybernetics, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 1756-378X

Keywords

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Article
Publication date: 13 March 2020

Lianlian Liu

The issue of concurrent jurisdiction over cross-border crimes has become common in a globalizing world, while the rigid compliance with territoriality and active…

Abstract

Purpose

The issue of concurrent jurisdiction over cross-border crimes has become common in a globalizing world, while the rigid compliance with territoriality and active personality jurisdiction has created a legal vacuum for cross-border crimes in many situations. The jurisdiction dispute between mainland China and Taiwan over cross-border telecom fraud crimes is a good example. In recent years, the Ministry of Public Security of the People’s Republic of China cracked down a series of cross-border telecom fraud crimes against mainland residents and extradited suspects to mainland China. Given a certain proportion of Taiwan residents in criminal gangs, the Taiwan side raised jurisdiction objections, arguing that mainland China had no right to exercise jurisdiction over Taiwanese criminals. The essence of the jurisdiction dispute between two sides is the concurrence of Taiwan’s right to exercise active personality jurisdiction and the mainland’s right to exercise passive personality jurisdiction. The purpose of this paper is to analyze the connotation of different jurisdiction principles (namely, territorial, active personality, protective and passive personality jurisdiction) and reinterpret their prioritization of applicability from a jurisprudential perspective, and thus, enhance the theoretical basis for resolving the issue of concurrent jurisdiction over cross-border crimes.

Design/methodology/approach

By reviewing the historical trajectory of major jurisdiction principles since the 1920s, and studying the specificities of the case in this context, this paper argues that territorial jurisdiction and active personality jurisdiction have presumed priority but not an absolute priority for resolving the issue of concurrent jurisdiction. The applicability of protective and passive personality jurisdiction could precede the former provided the jurisdictions of territoriality or active personality are inadequate, incompetent or lack of motivation to combat crimes, which harm other jurisdictions.

Findings

The developmental trajectory and contemporary connotation of major jurisdiction principles suggests that the legitimacy of the mainland’s exercise of passive personality jurisdiction over Taiwan criminal suspects lies in the urgent need to recover mainland victims’ significant property loss, the incompetence of Taiwan in detecting and prosecuting telecom fraud crimes committed by Taiwanese residents and targeting mainland victims and that the mainland has guaranteed the Taiwan side’s right to be timely informed and fully participate in its exercise of criminal jurisdiction over crimes involving Taiwan suspects.

Originality/value

Current literature on jurisdiction doctrines mainly uses a historical or descriptive approach to reveal the attitudes of different countries toward jurisdiction principles, which helps little in resolving the issue of concurrent jurisdiction over cross-border crimes in an era of globalization. This paper uses an interpretative approach, reinterprets the contemporary connotation of different jurisdiction principles and redefines the criteria for determining their prioritization in the context of the specificities of a case. It is expected to update the academic literature for resolving concurrent jurisdiction, fill the legal vacuum for combating cross-border crimes created by rigid compliance with territorial jurisdiction, and meanwhile relieve concerns about abuse of extraterritorial jurisdiction as it provides concrete standards for weighting the applicability of jurisdiction principles.

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