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The purpose of this paper is to investigate surroundings for transfer film formation and removal, the effect of the transfer film formation on friction coefficients, the effect of four different abrasive components, ZrO₂, ZrSiO₄, Al₂O₃ and Fe₃O₄, on transfer film formation and the effect of lubricating component MoS₂ on transfer film formation and friction coefficients.

Two different MoS₂ contents of 5.5 and 8.5 per cent were added to friction materials with no MoS₂ content, which have four different abrasive components, ZrO₂, ZrSiO₄, Al₂O₃, Fe₃O₄. Friction tests composed of three different stages were conducted for those materials, and the friction surfaces of the counterpart disks were examined by scanning electron microscopy (SEM) to access the formation of transfer film at each stage.

For the transfer film formation, high temperature was a prerequisite, but the magnitude of deceleration rate was not important. The effect of the transfer film formation was to reduce the friction coefficients for most friction materials. Friction coefficients of materials which contain lubricating component MoS₂ were higher than those which contain no MoS₂ for most friction materials. The effect of the lubricating component MoS₂ was to suppress the formation of transfer film, thus resulting in increase in friction coefficients.

The transfer film was rather thin, with thickness of 1-2 µm for most friction materials. That hindered the examination of mechanical properties of the transfer film, such as hardness.

This research explained the surroundings for transfer film formation, and its effect on friction coefficients. The research suggests to suppress the formation of transfer film to make friction materials with high friction coefficient, and the lubricating component MoS₂ can be used for the purpose.

Development of high-friction-brake materials conventionally depends on the use of strong abrasive components, which may induce attacking of counterpart disks. The enhancement of friction coefficients with addition of MoS₂ content is expected to open a new prospect in development of high-performance friction materials, which can be applicable to brake pads for racing cars.

The study is in pursuit of the transfer film formation in successive friction stages, which revealed the conditions for transfer film generation and removal. Specimen preparation for SEM observation of cross section of friction surface was painstaking to not damage the developed friction surface. The study revealed the effect of different abrasive components on transfer film formation and the effect of lubrication contents of MoS₂ on transfer film formation and friction coefficients.

This paper aims to investigate travelers’ intentions to use ChatGPT and the influential factors affecting their decision-making.

Four studies were conducted to test three hypotheses. Four groups of respondents totaling 593 (Study 1), 337 (Study 2), 374 (Study 3) and 385 (Study 4) survey participants were used for data analyses.

Overall, the findings confirmed the impacts of technology usage experience and ChatGPT’s mistakes and provided additional information on travelers’ intentions to use ChatGPT. The four hypotheses were supported.

The findings can help researchers and industry to understand travelers’ intentions to use ChatGPT and their responses to its functions.

这项研究调查了旅行者使用ChatGPT的意图, 以及影响其决策的重要因素。

通过进行四项研究来验证三个假设。四组受访者总共593名（研究1）、337名（研究2）、374名（研究3）和385名（研究4）参与了数据分析。

总体而言, 研究结果证实了技术使用经验的影响、ChatGPT的错误并提供了有关旅行者使用ChatGPT意图的更多信息。四个假设均得到了支持。

研究结果可以帮助研究人员和业界了解旅行者使用ChatGPT的意图, 以及他们对其功能的反应。

Este trabajo investiga la intención de los viajeros en el uso de ChatGPT y su influencia en el proceso de decisión de viaje de los viajeros.

Se han desarrollado cuatro estudios para probar tres hipótesis. Cuatro grupos de participantes: 593 (Estudio 1), 337 (Estudio 2), 374 (Estudio 3), y 385 (Estudio 4) participantes respondieron la encuesta y sus respuestas utilizadas para el análisis de datos.

En resumen, los resultados confirman el impacto de la experiencia de uso de la tecnología, los errores de ChatGPT, proveyendo información adicional sobre la intención de uso de ChatGPT por los viajeros. Las cuatro hipótesis de investigación fueron aceptadas.

Los resultados pueden ser útiles para la academia y la industria sobre la comprensión en la intención de uso de ChatGPT, tanto por los viajeros, como sus respuestas sobre su función.

Sports ethics is a growing concern in Korean society, marked by recent revelations of unethical behavior in sports ranging from doping and match-fixing to violence and abuse of power. These incidents prompt critical reflections on the state of sports ethics in Korea and the need for reforms. Key challenges are the intense pressure to win in Korean sports culture, often leading to a focus on short-term success over ethical considerations, and the lack of transparency and accountability in Korean sports organizations. Numerous instances of corruption and abuse of power within these organizations have been reported, which have contributed to a lack of trust among the public. This study examines these challenges and social contexts of sports ethics discourse in Korean society, aiming to provide valuable insights for fostering a more ethical and inclusive sports culture.

This study aims to examine whether a text stimulus could enhance students' imagination and thus enhance their creativity in the architectural design studio. The assumption is that adopting the text stimulus in the conceptual design stage would support students' imagination through a nonlinear design process, and ultimately produce the creative values of design outcomes.

A curriculum that adopts a text stimulus was developed and used for first-year university students. The aim was to implement an architectural setting to stimulate students' imagination with a framework for creativity evaluation. The study focused not only on the design process that characterizes the generation of concepts and ideas, but also on the processes related to the creative practices that students need for developing their own expression methods to solve problems they encounter.

The results show that design education that emphasizes the imaginary could enhance students' creative thinking, thus leading to creative design. As a training tool in the design studio, the diversity of interpretation following the text stimulus was revealed to provoke a nonlinear design process and to eventually enhance students' originality, differential and inventiveness, which are associated with the creativity criteria for evaluation.

The study explores the translation of imaginary spaces from text into spatial design as a conceptual tool in order to characterize and support creativity throughout design education in the architectural design studio.

This study aims to explain how the impact of COVID-19 on human mobility is affected by the perceived risk of the pandemic.

Using a statistical analysis and a geographic visualization technique, we investigate whether and how changes in people’s restaurant visiting patterns during COVID-19 vary with their level of risk perception.

The changes in people’s restaurant visiting patterns vary with their risk perception: the tendency to increase the number of visits to restaurants located in non-popular areas is related to the level of perceived risk.

This research confirms the importance of risk perception when examining the pandemic’s multi-dimensional impacts.

这项研究旨在解释 COVID-19 对人类流动性的影响如何受到大流行的感知风险的影响。

使用统计分析和地理可视化技术, 我们调查人们的餐厅是否以及如何变化COVID-19 期间的访问模式因他们的风险感知水平而异。

人们的餐厅光顾模式的变化随着他们的风险感知而变化：去位于非热门区域的餐厅的光顾次数增加的趋势与感知的风险水平有关。

这项研究证实了在检查大流行的多维影响时风险认知的重要性。

Mediante un análisis estadístico y una técnica de visualización geográfica, investigamos si los cambios en los patrones de visita a restaurantes de las personas durante COVID-19 varían en función de su nivel de percepción del riesgo y cómo lo hacen.

Esta investigación pretende explicar cómo el impacto de COVID-19 en la movilidad humana se ve afectado por el riesgo percibido de la pandemia.

Los cambios en las pautas de visita a restaurantes de las personas varían en función de su percepción del riesgo: la tendencia a aumentar el número de visitas a restaurantes situados en zonas no populares está relacionada con el nivel de riesgo percibido.

Esta investigación confirma la importancia de la percepción del riesgo a la hora de examinar los impactos multidimensionales de la pandemia.

The purpose of this study is to emphasize the important role of performance-oriented human resource (HR) practices and gender equality perceptions in supervisors and chief executive officers (CEOs) for career development among women in management.

This study used a quantitative methodology to examine relationships among variables. The authors conducted a survey to investigate factors influencing the career development of women managers in professional settings, with a sample of 1,502 female managers in South Korea.

The relationship between performance-oriented HR practices and career development for women managers was supported. In addition, self-leadership significantly mediated the relationship between performance-oriented HR practices and career development. Finally, double moderator effects of gender equality perceptions of CEOs and supervisors on the relationship between performance-oriented HR practices and self-leadership were significant.

This study emphasizes that career development for women in South Korea depends on gender equality awareness and institutional reorganization for best practices at top management levels. Specifically, this study identified the essential role of performance-based HR practices to support self-leadership and career development in women managers. Furthermore, this study recognized gender equality perceptions of CEOs and supervisors as a critical factor in the successful career development of women managers.

COVID 19 has had a profound effect on peoples’ activities and the use of public spaces. Before the COVID 19 pandemic urban parks, as healthy places, were of the most favorable places for urban citizens, but nowadays no vitality is found in urban parks due to the absence of people. The perceived risk seems to affect peoples’ decision-making for the visit to urban parks. This study aims to examine the impact of COVID 19 perceived severity and vulnerability on peoples’ visit to the urban parks and further exercise avoidance. It is expected that the result of this study would shed light on the people’s perception of healthy urban parks to exercise during COVID 19.

The participants were recruited from a neighborhood with the greenest and largest parks in Iran that were selected for the study. It was to assure that participants have access to the urban parks within their walkable distance. The mixed-method approach was applied to achieving the research goals. A total of 404 participants attended the survey. A series of semi-structured interviews were conducted to examine the strategies that reduce peoples’ worries about using urban parks during the COVID 19. Data were analyzed using SmartPLS.

The study hypothesized that peoples’ awareness of COVID 19 affects their perceived risk and disease prevention efficiency. Besides, it was hypothesized that perceived risk and efficacy effects outdoor activities worries exercise avoidance and behavioral avoidance in the urban parks. The result of the study supported the research hypothesis. The more knowledge people acquire of COVID 19 and the lack of efficacy of treatments, the higher they will avoid outdoor activities and exercise. The means of knowledge and perceived risk were higher than previously reported studies.

The result of this study is very important, as it statistically proves that peoples’ priorities and factors that affect their willingness to use public spaces are very much affected by their perception of a healthy environment. It also canonizes the role of facility managers in bringing peoples’ trust in the use of public spaces and more specifically urban parks during pandemic disease distributions.

A variety of collaborative technologies have been developed to support design communication among members of design teams, and understanding the affordances of these technologies is critical to effective design collaboration. This research explores the potential of social networking as a collective medium that encourages design communication among student designers at the conceptual stage of design in a studio course.

For one semester, the student participants used different social networking services to communicate with their team members, and the authors analysed how they collaborated when solving a given problem using the collaborative tools.

The results show that various social networking platforms support students' communication of design and exploration of problems differently by affecting their clarification of ideas and information sharing. Collective discussion and online support are useful for framing problems and ideation in collaborative design.

This research proposes that social networking services appropriate to the activities needed to be chosen and provided to enable design communication to promote students' active learning through team collaboration.

Most previous studies predicting review helpfulness ignored the significance of deep features embedded in review text and instead relied on hand-crafted features. Hand-crafted and deep features have the advantages of high interpretability and predictive accuracy. This study aims to propose a novel review helpfulness prediction model that uses deep learning (DL) techniques to consider the complementarity between hand-crafted and deep features.

First, an advanced convolutional neural network was applied to extract deep features from unstructured review text. Second, this study used previous studies to extract hand-crafted features that impact the helpfulness of reviews and enhance their interpretability. Third, this study incorporated deep and hand-crafted features into a review helpfulness prediction model and evaluated its performance using the Yelp.com data set. To measure the performance of the proposed model, this study used 2,417,796 restaurant reviews.

Extensive experiments confirmed that the proposed methodology performs better than traditional machine learning methods. Moreover, this study confirms through an empirical analysis that combining hand-crafted and deep features demonstrates better prediction performance.

To the best of the authors’ knowledge, this is one of the first studies to apply DL techniques and use structured and unstructured data to predict review helpfulness in the restaurant context. In addition, an advanced feature-fusion method was adopted to better use the extracted feature information and identify the complementarity between features.

大多数先前预测评论有用性的研究忽视了嵌入在评论文本中的深层特征的重要性, 而主要依赖手工制作的特征。手工制作和深层特征具有高解释性和预测准确性的优势。本研究提出了一种新颖的评论有用性预测模型, 利用深度学习技术来考虑手工制作特征和深层特征之间的互补性。

首先, 采用先进的卷积神经网络从非结构化的评论文本中提取深层特征。其次, 本研究利用先前研究中提取的手工制作特征, 这些特征影响了评论的有用性并增强了其解释性。第三, 本研究将深层特征和手工制作特征结合到一个评论有用性预测模型中, 并使用Yelp.com数据集对其性能进行评估。为了衡量所提出模型的性能, 本研究使用了2,417,796条餐厅评论。

广泛的实验验证了所提出的方法优于传统的机器学习方法。此外, 通过实证分析, 本研究证实了结合手工制作和深层特征可以展现出更好的预测性能。

据我们所知, 这是首个在餐厅评论预测中应用深度学习技术, 并结合了结构化和非结构化数据来预测评论有用性的研究之一。此外, 本研究采用了先进的特征融合方法, 更好地利用了提取的特征信息, 并识别了特征之间的互补性。