Keqiang Bai, Yunzhi Luo, Guanwu Jiang, Guoli Jiang and Li Guo
This paper aims to propose a pulsing type joint servo driver-based obstacle surmounting method for a humanoid robot according to the whole-body dynamics model, which fully takes…
Abstract
Purpose
This paper aims to propose a pulsing type joint servo driver-based obstacle surmounting method for a humanoid robot according to the whole-body dynamics model, which fully takes into account the relationship between the whole-body stability margin and instantaneous torque.
Design/methodology/approach
First, the authors designed a new practical instantaneous large torque strategy for a pulsing type joint servo driver by modeling the whole-body dynamics of the humanoid robot. The work also considered joint angle planning based on the dynamic model for crossing obstacles. Second, in the simulation and experimentation, the instantaneous torque of the driver is used to realize successful crossing of obstacles by the humanoid robot. This verifies the correctness of the whole-body dynamics model and the feasibility of the method for crossing obstacles.
Findings
The experimental data and results are described and analyzed, showing that the proposed method is feasible and effective through simulation and implementation.
Originality/value
The main contribution is the humanoid robot’s actuation control technology and humanoid action realization, which could be used for squatting and moving heavy objects to help a humanoid robot adapt effectively.
Details
Keywords
Guoli Wang and Chenxin Ma
Motivated by the wide application of procurement strategies in retailing, this paper aims to examine the effect of procurement strategies on decisions and profits and strategic…
Abstract
Purpose
Motivated by the wide application of procurement strategies in retailing, this paper aims to examine the effect of procurement strategies on decisions and profits and strategic inventory (SI) is considered.
Design/methodology/approach
The game-theoretic models are developed under a two-period fresh product supply chain (FSC), and consist of the mode of purchasing products only in the first period without SI (Scenario S), the mode of purchasing products in every period without SI (Scenario T) and the mode of purchasing products in every period with SI (Scenario TS).
Findings
Conducting the calculating and comparing, some major findings can be concluded. In general, two-period purchasing strategies (Scenarios T and TS) promote a higher freshness-keeping effort than the single buying strategy (Scenario S). Regarding the pricing strategy, SI and Scenario S can both contribute to obtaining a lower wholesale price, the retailer's pricing is relatively complicated and hinges on the consumer's sensitivity to freshness-keeping effort and the holding cost. Besides, comparing the sales quantity and the profit, the authors find that Scenario TS stimulates more demands and brings more profits for the manufacturer. However, Scenario TS is not the optimal selection for the reason that SI sometimes hurts the retailer and even the whole supply chain. Whereas, when the holding cost is in a certain range, Scenario TS will lead to a win-win situation.
Originality/value
The main findings of this study can give the enterprises some advice on the procurement strategies of fresh products and the decisions of pricing and the freshness-keeping effort.
Details
Keywords
Guoli Chen and Craig Crossland
Financial analysts act as crucial conduits of information between firms and stakeholders. However, comparatively little is known about how these information intermediaries…
Abstract
Financial analysts act as crucial conduits of information between firms and stakeholders. However, comparatively little is known about how these information intermediaries evaluate the believability and importance of corporate disclosures. We argue that a firm’s level of managerial discretion, or latitude of executive action, acts as a cue for financial analysts, which helps them interpret and respond to voluntary management earnings forecasts. Our study provides strong, robust evidence that financial analysts find management forecasts significantly less believable in low-discretion than in high-discretion environments, and therefore tend to be much less responsive to these forecasts. We also show that managerial discretion is especially impactful on analysts’ responses in those circumstances where analysts are typically most uncertain about how to interpret management forecasts.
Details
Keywords
Guoli Pu and Weiting Qiao
Given the sudden disruption caused by COVID-19, knowledge sharing between organizations has become a meaningful way to improve supply chain resilience. However, there is still a…
Abstract
Purpose
Given the sudden disruption caused by COVID-19, knowledge sharing between organizations has become a meaningful way to improve supply chain resilience. However, there is still a lack of in-depth research on how to reduce the threat to knowledge sharing caused by increased levels of relational risk. With the emergence of new digital technologies, whether blockchain governance can control relational risk and replace traditional relational governance remains to be demonstrated.
Design/methodology/approach
This study uses a cross-sectional survey approach in which quantitative data are collected from 300 participants from Chinese manufacturing enterprises to test the hypotheses.
Findings
The results show that relational and blockchain governance can significantly and complementarily reduce the level of relational risk in knowledge sharing. When the relational risk is at a low, medium or high level, the best matches of relational and blockchain governance are low-level relational governance–low-level blockchain governance, high-level relational governance–low-level blockchain governance and high-level relational governance–high-level blockchain governance, respectively.
Practical implications
The findings of this study have important practical implications for manufacturing enterprises in terms of how to choose reasonable governance modes to manage relational risk behaviour according to different relational risk levels to better understand the positive role of knowledge sharing in supply chain resilience.
Originality/value
The antecedent variables of knowledge sharing in previous studies are based on transaction cost theory or relational theory and have not moved beyond the original theoretical framework. This paper addresses this limitation, puts knowledge sharing in the academic context of digital technology, considers blockchain governance into the process of relational risk-knowledge sharing and defines blockchain governance, which is a novel approach in the supply chain resilience management literature.
Details
Keywords
Rene Dentiste Mueller, George Xun Wang, Guoli Liu and Charles Chi Cui
Marketing research has focussed more on in-group favoritism and out-group derogation (i.e. ethnocentrism) than out-group favoritism and in-group derogation (i.e. xenocentrism)…
Abstract
Purpose
Marketing research has focussed more on in-group favoritism and out-group derogation (i.e. ethnocentrism) than out-group favoritism and in-group derogation (i.e. xenocentrism). The purpose of this paper is to explore the xenocentric behavior in the consumer sphere to explain why some consumers have a bias for foreign products even when domestic ones are qualitatively similar or better. As the Chinese economy has experienced more than three decades of near double-digit growth and increased openness to foreign products, it is important to examine phenomena related to the formation of Chinese attitudes toward foreign products with the rising tensions between the seemingly irreversible globalization and Chinese re-awakening nationalism.
Design/methodology/approach
This study is based on a review of the extant literature and focus groups in three cities in China.
Findings
This study has found that consumer xenocentrism (CX) is prevalent in China, especially among the new emerging wealthy classes, younger consumers, and the local elite. It appears that Chinese consumers are psychologically or sociologically orientated or predisposed toward foreign (Western) goods. The findings from this study suggest that both consumer ethnocentrism and CX are possible or even expected. The short review of Chinese history presented here has shown that these phenomena can be explained by traditional in-group/out-group theories. Specifically, when there are too many xenocentrics, national esteem is threatened and this prompts many individuals to become more ethnocentric.
Research limitations/implications
This study is based on the literature and focus groups data, hence, the findings are not intended to be generalizable.
Practical implications
The findings from this study should be of interest to business practitioners and policy makers.
Social implications
The historical and cultural perspectives taken in this study indicate that understanding consumers’ xenocentric behavior entails knowledge and deep understanding of how cultural values and contemporary social-political forces interplay within consumers’ formation and change of attitudes toward the choice of domestic and foreign products.
Originality/value
This study shows that the ability of foreign products to meet the individual’s need or enhance his/her self-esteem more so than domestic products is indicative of something more than simply an international, cosmopolitan, or modern orientation. The fact that consumer foreign bias is found with both mundane and widely available products, expensive and inexpensive products, and conspicuous and non-conspicuous goods challenges the assumption that this phenomenon is simply traditional prestige-consumption behavior. Future research needs to be directed at measuring the CX construct and examine potential antecedents of such a behavior.
Details
Keywords
Since the launch of the Mainland and Hong Kong Closer Economic Partnership Arrangement (CEPA) in 2003, Hong Kong cinema is believed to have confronted drastic changes. Hong Kong…
Abstract
Purpose
Since the launch of the Mainland and Hong Kong Closer Economic Partnership Arrangement (CEPA) in 2003, Hong Kong cinema is believed to have confronted drastic changes. Hong Kong cinema is described to be dying, lacking creative space and losing local distinctiveness. A decade later, the rise of Hong Kong – China coproduction cinema under CEPA has been normalized and changed the once pessimism in the industry. The purpose of this paper is to demonstrate how Hong Kong cinema adjusted its production and creation in the first 10 years of CEPA.
Design/methodology/approach
Beginning with a review of the overall development, three paradigmatic cases are examined for reflecting upon what the major industrial and commercial concerns on the Hong Kong – China coproduction model are, and how such a coproduction model is not developed as smooth as what the Hong Kong filmmakers expected.
Findings
Collectively, this paper singles out the difficulties in operation and the limit of transnationality that occur in the Chinese context for the development of Hong Kong cinema under the Hong Kong – China coproduction model.
Originality/value
This is the author’s research in his five-year study of Hong Kong cinema and it contributes a lot to the field of cinema studies with relevant industrial and policy concern.
Details
Keywords
Celalettin Baykara and Enver Atik
Today, wear and tear is a metaphor whose cost cannot be ignored by real sector. For this reason, many sectoral and academic studies are carried out to minimize the wear effect…
Abstract
Purpose
Today, wear and tear is a metaphor whose cost cannot be ignored by real sector. For this reason, many sectoral and academic studies are carried out to minimize the wear effect. This study aims to create a perspective against wear problems for the automotive industry as well.
Design/methodology/approach
The 16MnC5 material, which is used as the U-joint material in the powertrain of the automotive industry, was subjected to heat treatment such as normalization and carburization at certain temperatures and duration. By subjecting the resulting carbide thickness to the abrasion process, the maximum effective heat treatment parameters against wear were determined.
Findings
It has been determined that the ideal cementation condition for 16MnCr5 steel to be used in the wear system is carburized samples at 900 °C for 3.5 h with a hardness depth of 1.04 mm.
Originality/value
The variation in which the surface hardness thickness and surface roughness obtained by different heat treatment variations of the U-joint part, which is one of the cardan shaft components that provide power transmission of heavy commercial vehicles, show the best wear resistance, were investigated. As a result of this study, the study is to prevent the waste of limited materials in the world and to reduce the repair and maintenance costs of commercial vehicles.
Peer review
The peer review history for this article is available at: https://publons.com/publon/10.1108/ILT-05-2024-0152/