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1 – 10 of over 1000
Article
Publication date: 14 November 2023

Jihye Park, Min Zhang, Seunghyun Yoo and Hannah Gloria Kwon

This study investigates the effects of vertical direction and rotation of English loan brand names in East Asian languages (Chinese and Korean) on processing fluency, perceived…

Abstract

Purpose

This study investigates the effects of vertical direction and rotation of English loan brand names in East Asian languages (Chinese and Korean) on processing fluency, perceived product quality and purchase intention.

Design/methodology/approach

Four experiments were conducted in China and Korea, employing a 2 (vertical direction: downward vs upward) X 3 (rotation: 0°/marquee vs 90° clockwise vs 90° counterclockwise) between-subjects factorial design.

Findings

The findings showed that when the English loan Chinese brand name was displayed downward, the marquee format was preferred, while counterclockwise rotation was favored when displayed upward. In Korean, clockwise rotation was preferred for downward presentation, while counterclockwise rotation was favored for upward presentation. The effects on purchase intention were mediated by processing fluency and perceived product quality.

Practical implications

This research provides practical implications for global manufacturers and retailers, offering guidance on presenting brand names in East Asian languages and optimizing product packaging designs. For Chinese consumers, the marquee format is recommended for downward-oriented brand names, while counterclockwise rotation is effective for upward orientation. For Korean consumers, clockwise rotation is favored for downward presentation and counterclockwise rotation is preferred for upward presentation. Understanding linguistic habits allows the tailoring of brand presentations, enhancing brand perception and consumer responses.

Originality/value

This study contributes to understanding the role of cultural and linguistic influences on consumer information processing and product perception in vertical presentations of brand names.

Details

Asia Pacific Journal of Marketing and Logistics, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 1355-5855

Keywords

Article
Publication date: 22 January 2024

Yang Yang, Yinghui Tian, Runyu Yang, Chunhui Zhang and Le Wang

The objective of this paper is to quantitatively assess shear band evolution by using two-dimensional discrete element method (DEM).

Abstract

Purpose

The objective of this paper is to quantitatively assess shear band evolution by using two-dimensional discrete element method (DEM).

Design/methodology/approach

The DEM model was first calibrated by retrospectively modelling existing triaxial tests. A series of DEM analyses was then conducted with the focus on the particle rotation during loading. An approach based on particle rotation was developed to precisely identify the shear band region from the surrounding. In this approach, a threshold rotation angle ω0 was defined to distinguish the potential particles inside and outside the shear band and an index g(ω0) was introduced to assess the discrepancy between the rotation response inside and outside shear band. The most distinct shear band region can be determined by the ω0 corresponding to the peak g(ω0). By using the proposed approach, the shear band development of two computational cases with different typical localised failure patterns were successfully examined by quantitatively measuring the inclination angle and thickness of shear band, as well as the microscopic quantities.

Findings

The results show that the shear band formation is stress-dependent, transiting from conjugated double shear bands to single shear band with confining stress increasing. The shear band evolution of two typical localised failure modes exhibits opposite trends with increasing strain level, both in inclination angle and thickness. Shear band featured a larger volumetric dilatancy and a lower coordination number than the surrounding. The shear band also significantly disturbs the induced anisotropy of soil.

Originality/value

This paper proposed an approach to quantitatively assess shear band evolution based on the result of two-dimensional DEM modelling.

Details

Engineering Computations, vol. 41 no. 1
Type: Research Article
ISSN: 0264-4401

Keywords

Article
Publication date: 15 December 2023

Sanjay Kumar Singh, Lakshman Sondhi, Rakesh Kumar Sahu and Royal Madan

The purpose of the study is to perform elastic stress and deformation analysis of a functionally graded hollow disk under different conditions (rotation, gravity, internal…

Abstract

Purpose

The purpose of the study is to perform elastic stress and deformation analysis of a functionally graded hollow disk under different conditions (rotation, gravity, internal pressure, temperature with variable heat generation) and their combinations.

Design/methodology/approach

The classical method of solution, Navier's equation, is used to solve the governing equation. The analysis considers thermal and mechanical boundary conditions and takes into account the variation of material properties according to a power law function of the radius of the disk and grading parameter.

Findings

The findings of the study reveal distinct trends and behaviors based on different grading parameters. The influence of gravity is found to be negligible, resulting in similar patterns to the pure rotation case. Variable heat generation introduces non-linear temperature profiles and higher displacements, with stress values influenced by grading parameters.

Practical implications

The study provides valuable insights into the behavior of displacement and stresses in hollow disks, offering a deeper understanding of their mechanical response under varying conditions. These insights can be useful in the design and analysis of functionally graded hollow disks in various engineering applications.

Originality/value

The originality and value of this study lies in the consideration of various loading combinations of rotation, gravity, internal pressure and temperature with variable heat generation. Furthermore, the study of effect of various angular rotations, temperatures and pressures expands the understanding of the mechanical behavior of such structures, contributing to the existing body of knowledge in the field.

Details

International Journal of Structural Integrity, vol. 15 no. 1
Type: Research Article
ISSN: 1757-9864

Keywords

Article
Publication date: 12 December 2023

Qing Zhou, Yuanqing Liu, Xiaofeng Liu and Guoping Cai

In the post-capture stage, the tumbling target rotates the combined spacecraft system, and the detumbling operation performed by the space robot is required. To save the costly…

Abstract

Purpose

In the post-capture stage, the tumbling target rotates the combined spacecraft system, and the detumbling operation performed by the space robot is required. To save the costly onboard fuel of the space robot, this paper aims to present a novel post-capture detumbling strategy.

Design/methodology/approach

Actuated by the joint rotations of the manipulator, the combined system is driven from three-axis tumbling state to uniaxial rotation about its maximum principal axis. Only unidirectional thrust perpendicular to the axis is needed to slow down the uniaxial rotation, thus saving the thruster fuel. The optimization problem of the collision-free detumbling trajectory of the space robot is described, and it is optimized by the particle swarm optimization algorithm.

Findings

The numerical simulation results show that along the trajectory planned by the detumbling strategy, the maneuver of the manipulator can precisely drive the combined system to rotate around its maximum principal axis, and the final kinetic energy of the combined system is smaller than the initial. The unidirectional thrust and the lower kinetic energy can ensure the fuel-saving in the subsequent detumbling stage.

Originality/value

This paper presents a post-capture detumbling strategy to drive the combined system from three-axis tumbling state to uniaxial rotation about its maximum principal axis by redistributing the angular momentum of the parts of the combined system. The strategy reduces the thrust torque for detumbling to effectively save the thruster fuel.

Details

Aircraft Engineering and Aerospace Technology, vol. 96 no. 1
Type: Research Article
ISSN: 1748-8842

Keywords

Article
Publication date: 25 August 2023

Dongmin Li, Shiming Zhu, Shangfei Xia, Peisi Zhong, Jiaqi Fang and Peng Dai

During drilling in coal mines, sticking of drill rod (referred to as SDR in this work) is a potential threat to underground safety. However, no practical measures to deter SDR…

Abstract

Purpose

During drilling in coal mines, sticking of drill rod (referred to as SDR in this work) is a potential threat to underground safety. However, no practical measures to deter SDR have been developed yet. The purpose of this study is to develop an anti-SDR strategy using proportional-integral-derivative (PID) and compliance control (PIDC). The proposed strategy is compatible with the drilling process currently used in underground coal mines using drill rigs. Therefore, this study aims to contribute to the PIDC strategy for solving SDR.

Design/methodology/approach

A hydraulic circuit to reduce SDR was built based on a load-independent flow distribution system, a PID controller was designed to control the inlet hydraulic pressure of the rotation motor and a typical compliance control approach was adopted to control the feed force and displacement. Moreover, the weight and optimal combination of the alternative admittance control parameters for the feed cylinder were obtained by adopting the orthogonal experiment approach. Furthermore, a fuzzy admittance control approach was proposed to control the feed displacement. Experiments were conducted to test the effectiveness of the proposed method.

Findings

The experimental results indicated that the PIDC strategy was appropriate and effective for controlling the rotation motor and feed cylinder; thus, the proposed method significantly reduces the SDR during drilling operations in underground coal mines.

Research limitations/implications

As the PIDC strategy solves the SDR problem in underground coal mines, it greatly improves the safety of coal mine operation and decreases the power cost. Consequently, it brings the considerable benefits of coal mine production and vast application prospects in other corresponding fields. Actual drilling conditions are difficult to accurately simulate in a laboratory; thus, for future work, drilling experiments can be conducted in actual underground coal mines.

Originality/value

The PIDC-based anti-SDR strategy proposed in this study satisfactorily controls the rotation motor and feed cylinder and facilitates the feed and rotation movements. Furthermore, the tangible novelty of this study results is that it improves the frequency response of the entire drilling system. The drilling process with PIDC decreased the occurrence of SDR by 50%; therefore, the anti-SDR strategy can significantly improve the safety and efficiency of underground coal mining.

Details

Robotic Intelligence and Automation, vol. 43 no. 5
Type: Research Article
ISSN: 2754-6969

Keywords

Article
Publication date: 12 September 2023

Ling Wang, Xiaoliang Wu, Zeng Kang, Yanfeng Gao, Xiai Chen and Binrui Wang

In traditional calibration methods of kinematics parameters of industrial robots, dozens of model parameters are identified together based on an optimization procedure. Due to…

Abstract

Purpose

In traditional calibration methods of kinematics parameters of industrial robots, dozens of model parameters are identified together based on an optimization procedure. Due to different contributions of model parameter errors to the tool center point positioning error of industrial robots, obtaining good results for all model parameters is very difficult. Therefore, the purpose of this paper is to propose a sequential calibration method specifically for transmission ratio parameters, which includes reduction ratios and coupling ratios of industrial robot joints.

Design/methodology/approach

The ABB IRB 1410 industrial robot is considered as an example in this study. The transmission ratios for each joint of the robot are identified using the spatial circle fitting method based on spatial vectors, which fit the center and radius of joint rotation with the least squares optimization algorithm. In addition, a method based on the Rodrigues’ formula is designed and presented for identifying the actual coupling ratio of the robot. Subsequently, an experiment is carried out to verify the proposed sequential calibration method of transmission ratios.

Findings

In this experiment, the actual positions of the linkages before and after joint rotations are measured by a laser tracker. Accurate results of the reduction ratios and the coupling ratios are calculated, and the results are verified experimentally. The results show that by calibrating the reduction ratios and coupling ratios of the ABB robot, the rotation angle errors of the robot joints can be reduced.

Originality/value

The authors propose a sequential calibration method for transmission ratio parameters, including reduction ratios and coupling ratios of industrial robot joints. An experiment is carried out to verify this proposed sequential calibration method. This study may be beneficial for calibrating the kinematic parameters of industrial robots and improving their positioning accuracy.

Details

Industrial Robot: the international journal of robotics research and application, vol. 50 no. 6
Type: Research Article
ISSN: 0143-991X

Keywords

Article
Publication date: 1 August 2022

Abiot Tessema and Heba Abou-El-Sood

Audit rotation (AR) is a key policy initiative implemented in global jurisdictions to deal with concerns about audit quality. Auditing financial reports involves communicating…

Abstract

Purpose

Audit rotation (AR) is a key policy initiative implemented in global jurisdictions to deal with concerns about audit quality. Auditing financial reports involves communicating attested value-relevant company information to investors, and hence audit quality plays a role in the quality of financial reporting information. This paper aims to investigate whether AR affects the degree of information asymmetry (IS) between investors. It further aims to examine whether voluntary AR results in less asymmetric information compared to mandatory AR. Additionally, it examines whether political connections moderate the association between AR and IS.

Design/methodology/approach

The authors use data from publicly traded banks across the Gulf Cooperation Council (GCC) for the period 2010–2018. The authors include several variables to control for corporate governance and other firm-specific characteristics by using country-year fixed-effects regression model.

Findings

The authors find higher IS for banks that periodically rotate auditor, while banks voluntarily choose to rotate auditors obtain high-quality audits, which results in higher trading volume and lower stock return volatility, hence lower IS. The results suggest that when banks voluntarily choose to rotate auditors, investors perceive these banks as more committed to obtaining high-quality audits relative to mandatory AR. Providing higher quality audits enhances the credibility of reported information and thus reduce the level of IS. Moreover, IS following AR is higher for politically connected banks than for similar but politically unconnected banks. Finally, investors perceive voluntary AR as a disciplining tool, which mitigates IS. This mitigating role is not affected by bank political connectedness.

Research limitations/implications

This study has limitations as the definition of AR could be interpreted as binary or too narrow, and hence it may not be appropriate to generalize findings to different contexts. Nonetheless, this study casts light on a new perspective to reconcile the existing mixed evidence on the influence of AR on IS and the moderating role of political connections. A further limitation is that because of data unavailability, the authors were unable to use other proxies (e.g. bid-ask spreads and analyst forecast dispersion) of IS.

Practical implications

The present findings provide insight to regulators, policymakers and standard setters on the potential adverse effect of political connections on the role of AR in mitigating IS. The results underscore the importance of voluntary AR, and suggest that regulators, policymakers and standard setters encourage firms to rotate their auditors periodically.

Originality/value

This study provides evidence in a setting that is unique at the economic, social and regulatory levels. Prior literature is lacking and has been centered on developed countries or focusing on single-country specifications. The data set of this study is unique and allows us to examine the interplay between political influence that arises through ownership and management roles of influential members of state.

Details

Meditari Accountancy Research, vol. 31 no. 5
Type: Research Article
ISSN: 2049-372X

Keywords

Article
Publication date: 5 September 2023

Xinyu Zhang and Liling Ge

A multi-laser sensors-based measurement instrument is proposed for the measurement of geometry errors of a differential body and quality evaluation. This paper aims to discuss the…

Abstract

Purpose

A multi-laser sensors-based measurement instrument is proposed for the measurement of geometry errors of a differential body and quality evaluation. This paper aims to discuss the aforementioned idea.

Design/methodology/approach

First, the differential body is set on a rotation platform before measuring. Then one laser sensor called as “primary sensor”, is installed on the intern of the differential body. The spherical surface and four holes on the differential body are sampled by the primary sensor when the rotation platform rotates one revolution. Another sensor called as “secondary sensor”, is installed above to sample the external cylinder surface and the planar surface on the top of the differential body, and the external cylinder surface and the planar surface are high in manufacturing precision, which are used as datum surfaces to compute the errors caused by the motion of the rotation platform. Finally, the sampled points from the primary sensor are compensated to improve the measurement accuracy.

Findings

A multi-laser sensors-based measurement instrument is proposed for the measurement of geometry errors of a differential body. Based on the characteristics of the measurement data, a gradient image-based method is proposed to distinguish different objects from laser measurement data. A case study is presented to validate the measurement principle and data processing approach.

Research limitations/implications

The study investigates the possibility of correction of sensor data by the measurement results of multiple sensors to improving measurement accuracy. The proposed technique enables the error analysis and compensation by the geometric correlation relationship of various features on the measurand.

Originality/value

The proposed error compensation principle by using multiple sensors proved to be useful for the design of new measurement device for special part inspection. The proposed approach to describe the measuring data by image also is proved to be useful to simplify the measurement data processing.

Details

Engineering Computations, vol. 40 no. 9/10
Type: Research Article
ISSN: 0264-4401

Keywords

Article
Publication date: 17 April 2023

Dirk De Clercq

The purpose of this study is to examine how employees’ deference to leader authority may induce their unethical pro-organizational behavior (UPB) and whether this translation is…

Abstract

Purpose

The purpose of this study is to examine how employees’ deference to leader authority may induce their unethical pro-organizational behavior (UPB) and whether this translation is more likely to materialize in the presence of two personal factors (dispositional greed and proactive personality) and two organizational factors (workplace status and job rotation).

Design/methodology/approach

The empirical assessment of the research hypotheses relies on quantitative survey data collected among 350 Canadian-based employees who work in the healthcare sector. The statistical analyses include hierarchical moderated regression.

Findings

The role of deference to leader authority in stimulating UPB is greater when employees (1) have a natural disposition to always want more, (2) enjoy initiative taking, (3) believe that they have a great deal of prestige in the organization and (4) operate in an organizational environment in which job rotation across different departments is encouraged.

Practical implications

The results inform managers about the risk that employees’ willingness to obey organizational authorities unconditionally might escalate into negative behaviors that can cause harm to both the organization and employees in the long run, as well as the personal and organizational circumstances in which this escalation is more likely to occur.

Originality/value

This study extends extant research by investigating the conditional effects of an unexplored determinant of UPB, namely, a personal desire to defer to organizational leaders.

Article
Publication date: 9 January 2023

Ying Ling Jin, Fatimah De’nan, Kok Keong Choong and Nor Salwani Hashim

Cold-formed steel has been used extensively as secondary elements such as purlins and girts in building frames. Purlin is critical to the structure of the roof because it supports…

Abstract

Purpose

Cold-formed steel has been used extensively as secondary elements such as purlins and girts in building frames. Purlin is critical to the structure of the roof because it supports the weight of the roof deck and aids to make the entire roof structure more rigid. Furthermore, cold-formed steel purlin is a replacement for wood purlin because steel purlins are light weight and more economical. Hence, the purpose of this study to investigate the effect of opening due to torsion behaviour.

Design/methodology/approach

This analysis used cold-formed steel hat purlin with and without openings (WOs) under different opening shape, location and spacing by using finite element LUSAS software.

Findings

The finite element results showed that purlin with openings had higher angle of rotation than section WO, with a percentage difference of not more than 6%. When the opening was located at mid-span, the angle of rotation reduced. Angle of rotation increased when the opening spacing increased. Number of openings also affected the torsional behaviour of the purlin. Five opening shapes, which were circle, diamond, C-hexagon, square and elongated circle, were studied. Among all the shapes, purlin with diamond opening was more resistance to torsion.

Originality/value

The use of cold-formed steel section with web openings (rectangular or circular) is a practical solution when it is required to pass service ducts through the structural member. However, the presence of opening gives minor effect on the structural behaviour of cold-formed steel hat purlin.

Details

World Journal of Engineering, vol. 21 no. 2
Type: Research Article
ISSN: 1708-5284

Keywords

1 – 10 of over 1000