Search results

To propose a new haptic modeling and contact analysis algorithm (modified long element method (MLEM)) to efficiently model deformation, to estimate elasticity, and to provide the characterization of contact with deformable objects, which is important in teleoperation and haptic system.

Widely used finite element method for haptic rendering and visualization of deformable objects has limitations in real‐time applications because of its massive calculations and the absence of physical modeling. Using long elements method (LEM), the authors propose the MLEM which is capable of real‐time deformation rendering and elasticity estimation with reliable physical modeling. The authors applied MLEM to a simple haptic system composed of the three‐link SNU DD‐robot and a force‐feedback joystick.

An efficient, real‐time haptic modeling for deformable objects has been developed. MLEM provides physically accurate deformation modeling in real time, and estimates the elasticity of objects at contact, providing contact characterization based on material properties.

MLEM has been applied to SNU DD‐robot, and displayed real‐time haptic visualization in 2D space. It can be applied easily to any haptic system with force sensors, and may have impacts on the applications of teleoperation, robot‐aided surgery and human‐robot interaction.

This paper offers a practical tool to the engineers in the haptics field for visualization of deformation. The efficient algorithm of MLEM can be placed on any haptic system with force sensors, and will improve the efficiency and accuracy of teleoperated haptic systems with real‐time analysis of haptic contact.

Although Korean sociology of sport is relatively unknown to the international community of scholars, it is a mature field in Korea. Sociology of sport was first introduced in Korea in the mid-1960s when the field first evolved in North America and Europe. However, the development of the field shows different aspects from its Western counterpart due to unique cultural and environmental factors both in academia and in society. There are three major research trends that form Korean sociology of sport. First, there is the research focus on the benefit of sport and physical activity by examining empirical data using quantitative methodologies. The second group of researchers pays attention to individual experience in diverse sport fields and utilize qualitative methodologies to investigate empirical or secondary data. The third and most recent trend is a critical approach that theoretically analyzes ideologies, power relations, and identity politics in sport and society. When looking at the future, there are problems and limitations within the field in Korea. These include lack of continuity in terms of conference sub-themes, over-production of doctoral degree graduates, conservatism rooted in the field, and a danger of regarding sport policy research as an exit for sport sociologists. However, there are also possibilities and reasons for optimism. The biggest possibility for Korean sociology of sport is globalization of the field. Another significant possibility is the need for sport sociologists in planning, developing, and evaluating sport policy. Finally, diversification of the field gives ample opportunities for future research.

The weapon system of The Navy is the small quantity producing system on multiple kinds. It is consisted of various equipment and the subordinate parts of those which can repair the damaged part. The operating procedure concerning warship's repair parts managed under these systems is as follows. Firstly, if demand of repair parts occurs from warship which is the operating unit of weapon, then the Fleet(the repair & supply support battalion) is in charge of dealing with these requests. If certain request from warship is beyond the battalion's capability, it is delivered directly to the Logistic Command. In short, the repair and supply support system of repair parts can be described as the multi-level support system. The various theoretical researches on inventory management of Navy's repair parts and simulation study that reflects reality in detail have been carried out simultaneously. However, the majority of existing research has been conducted on aircraft and tank's repairable items, in that, the studies is woefully deficient in the area concerning Navy's inventory management. For that reason, this paper firstly constructs the model of consumable items that is frequently damaged reflecting characteristics of navy's repair parts inventory management using ARENA simulation. After that, this paper is trying to propose methodology to analyze optimal inventory level of each supply unit through OptQuest, the optimization program of ARENA simulation.

This chapter describes the status of past and current special education, inclusive education, and Low-Incidence Disabilities (LID) in South Korea by introducing historical background, legal development, and current trend. Four main areas related to special education in South Korea are highlighted: the historical background and legal development of special education; current laws relating to special education; inclusive education and LID; and the future of LID support in South Korea. This chapter will provide valuable information for those who want to become more knowledgeable about the current status of special education and inclusive education for learners with LID in South Korea.

This paper explores the entrepreneurial transformation of Bangtan Sonyeondan or Bangtan Boys (BTS), tracing their journey from initiation through expansion. Despite the global prominence of their music, dance and outreach, many aspects of BTS’s meteoric rise remain underexplored. This study aims to illuminate the strategic and organizational developments that have propelled their unprecedented growth in the global media landscape.

Using case study research methods, this paper uses a multimodal approach to examine BTS’s intricate interactions with market dynamics and fan engagement comprehensively. Using entrepreneurial innovation as the overarching theoretical framework, the authors categorize BTS’s transformational processes into drivers, practices and outcomes, thereby elucidating the strategies used to navigate key challenges and pivotal moments in their worldwide ascent.

The BTS organization exhibits a distinct entrepreneurial orientation and transformation process across its phases of initiation, development, growth and expansion. The authors identify specific drivers, practices and outcomes along with strategic vision, actionable practices and measurable performance outcomes at each stage.

While this study draws valuable parallels between BTS’s trajectory and established growth models, it recognizes the limitations inherent in a single-case study approach. The findings highlight the critical role of entrepreneurial leadership in the entertainment industry and suggest further exploration into the universal applicability of these models across different genres and cultural contexts within the music industry.

This paper underscores the importance of entrepreneurial innovation within entertainment organizations. The conceptual framework provided can assist managers in formulating strategies and policies for the growth and transformation of similar entities.

BTS’s case demonstrates how engaging a global audience with culturally specific content and the universal appeal of youthful energy can be transformative. This engagement is facilitated through effective use of music, dance and dynamic interactions on social media.

By analyzing BTS from an entrepreneurial leadership perspective, this study offers unique insights by examining their internal motivations and managerial practices, as well as the external outcomes, spanning from 2010 to 2023.

The purpose of this study is to investigate the relationships between Meta-commerce consumption value, consumer satisfaction and continuous usage intention in light of the moderating effects of involvement and consumer competency.

A survey for hypothesis testing was conducted targeting 200 domestic consumers in South Korea aged 19 years and above with experience in Meta-commerce. In order to examine the data, we used exploratory factor analysis (EFA), confirmatory factor analysis (CFA) and structural equation modeling using SPSS and AMOS.

The paper discovered that Meta-commerce consumption value affects consumer satisfaction and continuous usage intention. Specifically, the extrinsic value and the epistemic value of Meta-commerce have a positively significant effect on satisfaction. Additionally, the hedonic value of Meta-commerce has a positively significant effect on continuous usage intention. It also presented the differences in influence between low-involvement/high-involvement groups and low-competency/high-competency groups and examined consumer perceptions in detail.

The paper discovered that Meta-commerce consumption value affects consumer satisfaction and continuous usage intention. Specifically, the extrinsic value and the epistemic value of Meta-commerce have a positively significant effect on satisfaction. Additionally, the hedonic value of Meta-commerce has a positively significant effect on continuous usage intention. It also presented the differences in influence between low-involvement/high-involvement groups and low-competency/high-competency groups and examined consumer perceptions in detail.

The purpose of this paper is to identify security technologies that are essential in making home network systems secure and to describe specialized security mechanisms for the home network and the relationships among them.

The research model is designed to support three functions: authentication, authorization, and security policy. Authentication is tested in several methodologies such as id/pw, certificate, or bio; authorization is tested using RBAC methodologies; and security policy is specified using newly‐designed script language, such as xHDL.

The findings for “authentication” suggest that home network users can access services conveniently and securely. In addition, the findings for “security policy” suggest that security policy for home network requires specialized rather than general specification.

The paper identifies three security functions essential for home network: authentication that supports most existing authentication mechanisms, so as to maximize user accessibility; authorization that is middleware‐independent and beyond the physical transport layer; and security policy optimized for the home network environment.

The paper focuses on an implementation‐based security model for the home network. Though interest and research in home network security are increasing, only limited authentication applications have been adopted in real deployment up to now. This paper introduces an integrated security model and emphasizes safety and convenience so as to promote reliability in home network services.

The COVID-19 pandemic has significantly impacted global tourism, with international travel bearing the burden of restrictions. Domestic tourism has also faced substantial challenges. This paper aims to analyse the impact of the COVID-19 pandemic on domestic tourism in Spain, focusing on travel from Madrid (the country’s capital) to other tourist destinations.

Mobile phone data has been used to study the evolution of tourist trips over the summers of 2019, 2020 and 2021. Regression models are used to explain the number of visitors at destinations.

The pandemic not only caused a drastic drop in tourist flows but also disrupted the overall pattern of the domestic flow system. Winning destinations were typically areas in proximity to Madrid and less densely populated destinations, while urban destinations were major losers. The preferences of domestic tourists varied notably by income group, but the decrease in trip volumes showed only marginal differences.

The paper demonstrates the potential of mobile phone data analysis to study the uneven impact of external shocks, such as the COVID-19 pandemic, on tourist destinations. This approach considers spatial resilience heterogeneity within regions or provinces. By incorporating income information, the analysis introduces a social dimension to highly detailed spatial data, surpassing traditional studies conducted at the regional or national levels.

COVID-19大流行对全球旅游业产生了重大影响，国际旅行受到了限制的影响最为严重。国内旅游也面临着重大挑战。本文分析了COVID-19大流行对西班牙国内旅游的影响，重点关注从马德里（该国首都）到其他旅游目的地的旅行。

本研究使用移动电话数据研究了2019年、2020年和2021年夏季旅游出行的演变。采用回归模型解释了各目的地游客数量。

大流行不仅导致了旅游流量急剧下降，还扰乱了国内流动系统的总体模式。获胜的目的地通常是马德里附近的地区和人口较稀少的目的地，而城市目的地是主要的输家。国内游客的偏好在收入群体之间有明显差异，但旅行量的减少只显示出边际差异。

本文展示了使用移动电话数据分析研究外部冲击（如COVID-19大流行）对旅游目的地的不均匀影响的潜力。该方法考虑了区域或省份内的空间弹性异质性。通过整合收入信息，该分析为高度详细的空间数据引入了社会维度，超越了传统在区域或国家水平进行的研究。

Previous scholars have assumed that multinational enterprises (MNEs) can reduce the liability of foreignness and increase profitability by investing in corporate social responsibility (CSR). However, empirical validation of this assumption has rarely been attempted. This study aims to provide empirical evidence that the adoption of multi-stakeholder initiatives, which are globally recognized as signals of CSR, helps MNEs increase profits from internationalization.

Fixed effect models, which address model misspecification problems, and instrumental variable estimation, which controls for the endogeneity in firms’ choice of internationalization, offer empirical evidence supporting the moderating effects of global multi-stakeholder initiatives on the relationship between internationalization and firm performance.

This study examines the moderating role of multi-stakeholder initiatives in the relationship between internationalization and firm performance, drawing on signaling and stakeholder theories. The results suggest that the signaling effect of multi-stakeholder initiatives can help MNEs overcome the liability of foreignness and, therefore, profit from overseas markets.

Although the internationalization–firm performance relationship has been a subject of debate in the field of international business, the role of firms’ stakeholder engagement in this relationship has been largely overlooked in previous studies. In this study, the authors explore the impact of multi-stakeholder initiatives on the internationalization–firm performance relationship. Our primary contention is that multi-stakeholder initiatives have moderating effects on this relationship by reducing the liability of foreignness experienced by MNEs in host countries. Furthermore, the findings suggest that active engagement in multi-stakeholder initiatives significantly contributes to the financial success of MNEs as they internationalize.

Using the theory of planned behavior as its basis, the purpose of this paper is to investigate the relationships among beliefs about electronic service quality (E-S-QUAL); consumers’ need for uniqueness (CNFU); and beliefs about perceived behavioral control, expectations of important others, and cross-border online purchasing behavioral intention. The effects of E-S-QUAL and CNFU on attitude are examined with data collected from Korean consumers who have cross-border online purchasing experience.

The authors evaluate the research model in this study and test the hypotheses using partial least squares, an OLS regression-based estimation method that focuses on predicting independent variables hypothesized to have a causal relationship that maximizes the explanatory variance of the dependent variable.

Analysis of the data emphasizes that beliefs about E-S-QUAL and CNFU positively affect attitudes toward buying online from international sites, which in turn positively affect purchasing intention. Also, beliefs about self-efficacy and normative structure regarding cross-border online purchasing positively affect behavioral intentions.

This paper develops a conceptual model explaining consumers’ intentions to shop online across national borders. To the best of the authors’ knowledge, none of the previous studies have particularly mentioned the associations between beliefs about e-service quality and actual behavioral intentions in the context of cross-border online shopping. Also, the important role of CNFU has been ignored as one of the factors that can affect consumers’ decisions to shop online beyond national borders. In regard to this matter, the authors aim to investigate cross-border online shopping factors that can help international e-commerce gain a better understanding of the needs of their consumers.