Sora Shin, Hae-Hyun Choi, Yung Bin Kim, Byung-Hee Hong and Joo-Young Lee
The purpose of this paper is to evaluate the effects of intermittent and continuous heating protocols using graphene-heated clothing and identify more effective body region for…
Abstract
Purpose
The purpose of this paper is to evaluate the effects of intermittent and continuous heating protocols using graphene-heated clothing and identify more effective body region for heating in a cold environment.
Design/methodology/approach
Eight males participated in five experimental conditions at an air temperature of 0.6°C with 40 percent relative humidity: no heating, continuous heating the chest, continuous heating the back, intermittent heating the chest, and intermittent heating the back.
Findings
The results showed that the electric power consumption of the intermittent heating protocol (2.49 W) was conserved by 71 percent compared to the continuous protocol (8.58 W). Rectal temperature, cardiovascular and respiratory responses showed no significant differences among the four heating conditions, while heating the back showed more beneficial effects on skin temperatures than heating the chest.
Originality/value
First of all, this study was the first report to evaluate cold protective clothing with graphene heaters. Second, the authors provided effective intermittent heating protocols in terms of reducing power consumption, which was able to be evaluated with the characteristics of fast-responsive graphene heaters. Third, an intermittent heating protocol on the back was recommended to keep a balance between saving electric power and minimizing thermal discomfort in cold environments.
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Yelin Ko, Sora Shin, Yong Seok Choi, Byung-Hee Hong, Sang-Yoon Park and Joo-Young Lee
The purpose of the study was to explore heat-accumulative and thermal-conductive characteristics of copper-graphene composite film (Cu-G film) while applying it to a human-skin…
Abstract
Purpose
The purpose of the study was to explore heat-accumulative and thermal-conductive characteristics of copper-graphene composite film (Cu-G film) while applying it to a human-skin analogue.
Design/methodology/approach
In the preliminary experiment, the authors evaluated the thermal conductive characteristics of the Cu-G film in three covered conditions (no film, copper film, and Cu-G film conditions). For the first factorial experiment, the heat-accumulative properties over heated pig skin were compared at air temperatures of 10, 25 and 35°C. For the second factorial experiment, 105 trials were conducted on pig skin by combining air temperatures, trapped air volumes, and numbers of film layers.
Findings
The results from the preliminary experiment showed that the Cu-G film distributed the surface heat to the outside of the Cu-G film, which resulted in even distribution of heat inside and outside the Cu-G film, whereas the copper film accumulated heat inside the copper film. The human-skin analogue of pig skin, however, showed the opposite tendency from that of the plastic. The pig-skin temperatures beneath the Cu-G film were higher than those beneath the copper film, and those differences were remarkable at the air temperature of 10°C. The accumulative heat was affected by the trapped air volume, fit to the skin, and number of Cu-G film layers.
Originality/value
In conclusion, the Cu-G film more effectively accumulated heat on the human-skin analogue than copper film, and those effects were more marked in cold environments than in mild or hot environments.
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The purpose of this paper is to examine South Korea’s digital divide policy and investigate how it Korea is one of the most networked countries in the world that has been…
Abstract
Purpose
The purpose of this paper is to examine South Korea’s digital divide policy and investigate how it Korea is one of the most networked countries in the world that has been addressing the digital divide issue since the inception of broadband.
Design/methodology/approach
A secondary data analysis of the National Information Society Agency’s Digital Divide Index was conducted between 2003 and 2012.
Findings
The differences in the changes in the access, skills and utilisation dimensions of the digital divide indicate that a second-level digital divide emerges as penetration increases. The gap in access has been minimised concurrently with the rapid adoption of broadband. Reduction of gaps in skills and effective uses has not followed accordingly.
Social implications
Countries adopting broadband policies to achieve high connectivity can learn from this case and devise preventive policies that can overcome inequalities in skills and utilisation among digitally disadvantaged groups.
Originality/value
By analysing longitudinal data, this study identified an emerging second-level digital divide in a country with high broadband penetration. This has significant implications for policies aiming to narrow the digital divide and that access, skills and utilisation issues should be addressed separately.
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Aniello Menichino, Vittorio Di Vito, Gennaro Ariante and Giuseppe Del Core
Theadvanced air mobility (AAM) is defined by National Aeronautics and Space Administration (NASA) as safe, accessible, automated and affordable air transportation system for…
Abstract
Purpose
Theadvanced air mobility (AAM) is defined by National Aeronautics and Space Administration (NASA) as safe, accessible, automated and affordable air transportation system for passengers and cargo, capable of serving previously hard-to-reach urban and rural sites. The purpose of this paper is to focus on explaining potential solutions, under study by the authors, which could support beyond visual line of sight (BVLOS) operations for goods delivery in a safe way.
Design/methodology/approach
According to recent NASA-commissioned market studies, by 2030, there will be as many as 500 million flights a year for package delivery services and 750 million flights a year for passengers’ transportation (AAM). A significant number of these aircrafts will be unmanned aerial vehicles, meaning that they are self-flying or autonomous, of which the smallest ones are quadcopters: they are relatively inexpensive and are capable to perform various tasks, such as aerial observation, crop monitoring and treatment, search and rescue, power line monitoring and goods delivery. On the other hand, there are still many difficulties in introducing them into medium- and low-risk BVLOS routine operations for goods delivery: unfortunately, there are no regulations and technologies yet that enable these operations.
Findings
This conceptual paper outlines the studies about possible solutions, identified by authors, which could support BVLOS operations in a medium- and low-risk environment; in particular, the following aspects have been analysed: regulations, integrating control systems for drones, sensors (on board obstacle detection and avoidance), emergency management (emergency on ground system to identify safe landing areas), concepts of droneway (or flight corridors) and drones recovery hub.
Originality/value
The purpose of this paper is to provide a conceptual description of the possible solutions, under study by the authors, which could contribute enabling the BVLOS operations in a medium- and low-risk environment. The paper aims describing the state of the art, terms of regulations, classifications and limitations and describing possible conceptual solutions that could guarantee safety in introducing unmanned aircraft system operations inside urban areas.
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Kavitha Haldorai, Woo Gon Kim and Kullada Phetvaroon
This study aims to investigate the impact of job insecurity (JI) on employee work performance (WP) and service innovation behavior (SIB). It further examines the mediating role of…
Abstract
Purpose
This study aims to investigate the impact of job insecurity (JI) on employee work performance (WP) and service innovation behavior (SIB). It further examines the mediating role of affective commitment (AC) and the moderating role of organizational cynicism and financial job dependence (FJD).
Design/methodology/approach
By using a three-wave approach, the hypotheses were tested by collecting data from 473 full-time employees and their supervisors in the Thai hotel industry.
Findings
The results demonstrated that JI negatively affected WP and SIB. AC mediated these relationships. FJD moderated these relationships such that at high levels of job dependence, the negative relationships were weaker.
Research limitations/implications
Human resource managers may reduce the negative effects of JI by creating a supportive and caring work environment through open communication. They may communicate openly with employees about the challenges the organization is facing, and involve them in planning, decision-making and implementation to mitigate the negative effects of JI. They may also provide training and development opportunities to help employees build their skills and increase their value to the organization.
Originality/value
Research on the behavioral consequences of JI is scant in the hospitality sector. Drawing on job–demand resource theory, this study attempts to fill this gap.
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Jungrae Lee and Sora Kim
The 4th Industrial Revolution changed various aspects of our lives. Those influences also led to many changes in the sports field. The emergence of different wearable devices…
Abstract
The 4th Industrial Revolution changed various aspects of our lives. Those influences also led to many changes in the sports field. The emergence of different wearable devices which adapted Information Technology (IT) played a pivotal role in enhancing the field of sports science. As an example, smartwatches are one of the most popular wearable devices. They monitor an appropriate amount of exercise and manage individual health. These functions reflect people's desire to pursue an individual lifestyle, which leads to a trend of “quantified self.” A diversified market related to smart fitness equipment also provided a reasonable opportunity for people to select various training options. Combining online content with fitness equipment created an environment where people compete globally for individual fitness.
As such, the Fourth Industrial Revolution impacted sports field's development but yielded unexpected results. It has been criticized due to taking care of the body relying on machines, misconceptions of figures, and subordination of tools. Like Nomophobia which indicates a fear of being without a mobile phone, No-watchphobia confuses people. Boundaries between sports and game collapse, jobs of personal trainers are threatened, and inequality index of sports participation is enormously broad.
Critical scholars argue the need for in-depth reflection on whether the rationalization of society influenced by the development of science and technology is truly for human happiness and liberation or leads to restraint and alienation. From the critical scholars' perspective, academic concerns and phenomenological considerations should be contemplated based on the aspects of sports sociology.
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Chengxiang Chu, Sihan Cheng and Cong Cao
There is currently a gap in the research regarding the effect of corporate culture on corporate innovation capability. Based on cultural hierarchy theory, in this paper, we…
Abstract
Purpose
There is currently a gap in the research regarding the effect of corporate culture on corporate innovation capability. Based on cultural hierarchy theory, in this paper, we explore the interactions between cultural factors and innovation capability in emerging market firms (EMFs). We discuss the mechanisms by which incentive, institutional, and vibrant corporate cultures influence corporate innovation capability. Furthermore, we consider the transformation of artificial general intelligence (AGI) from a tool into a colleague and how this affects the relationship between corporate culture and innovation capability.
Design/methodology/approach
An online questionnaire was distributed to corporate employees to explore their attitudes towards AGI and corporate culture. In total, 523 valid questionnaires were empirically analysed using partial least squares structural equation modelling and multigroup analysis (MGA).
Findings
The results showed that incentive culture, institutional culture, and vibrant culture had a positive impact on corporate innovation capability. MGA revealed significant differences between employees who considered AGI a tool and those who considered it a colleague. Employees who treated AGI as a colleague were likely to be influenced by a vibrant culture, whereas employees who treated AGI as a tool were likely to be influenced by an incentive or institutional culture.
Originality/value
Building on cultural hierarchy theory, our study provides a new theoretical framework to enrich current research on the relationship between corporate culture and AGI. The study can help EMF managers adjust incentive and institutional cultures before AGI shifts from being a tool to a colleague and negatively impacts innovation capacity.
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The purpose of this research is to examine generative artificial intelligence (AI) user continuance intention based on the stimulus-organism-response model.
Abstract
Purpose
The purpose of this research is to examine generative artificial intelligence (AI) user continuance intention based on the stimulus-organism-response model.
Design/methodology/approach
We adopted a mixed method of structural equation modeling and fuzzy-set qualitative comparative analysis to conduct data analysis.
Findings
The results found that generative AI content quality (perceived personalization, perceived accuracy and perceived credibility) and system quality (perceived interactivity, perceived anthropomorphism and perceived intelligence) affect sense of empowerment and satisfaction, both of which further determine continuance intention.
Originality/value
Extant research has identified the effect of flow, trust and parasocial interaction on generative AI user continuance, but it has seldom disclosed the internal decisional process of generative AI user continuance intention. This research tries to fill this gap, and the results enrich the extant research on generative AI user continuance.
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The purpose of this paper is to offer a humanistic perspective on practice and prompts us to think about some of the implications for a more connected perspective on work and…
Abstract
Purpose
The purpose of this paper is to offer a humanistic perspective on practice and prompts us to think about some of the implications for a more connected perspective on work and learning.
Design/methodology/approach
This paper takes literary and metaphoric approach to discussion to evoke and engage the audience. It uses the primary device of the thriving of forests to prompt reflection.
Findings
This paper prioritises concepts of sustainability and responsibility and aims to prompt the reader in thinking about connectedness in relation to their own life and work.
Originality/value
This paper attempts to challenge an overly economic concept of work and learning, and offers an alternative humanistic metaphor to evoke and engage the reader. It values and encourages an experimental form of writing.
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Sora Kim, Soo-Yeon Kim and Kang Hoon Sung
The purpose of this paper is to examine how Fortune 100 companies are using Facebook (FB) in terms of employing corporate ability (CA), corporate social responsibility (CSR), and…
Abstract
Purpose
The purpose of this paper is to examine how Fortune 100 companies are using Facebook (FB) in terms of employing corporate ability (CA), corporate social responsibility (CSR), and hybrid communication strategies, meeting different stakeholders’ expectations, and incorporating interactivity components into social media.
Design/methodology/approach
A quantitative content analysis was used to examine a total of 1,486 corporate FB postings.
Findings
–Fortune 100 companies predominantly employed a CA strategy over a CSR strategy or a hybrid strategy. They prioritize customers’ needs over other stakeholders’ (e.g. stockholders and community members) on FB. FB fans are more likely to post “like” when companies personalize their FB messages. Seeking specific action-oriented participation on FB increased the frequencies of “like” and “comment,” whereas using the generic terms like “try” or “learn” decreased such frequencies. Finally, the frequencies of fans posting “like” and “comment” are affected by how often companies responded to fans’ postings and not influenced by how often companies feed new FB updates to fans.
Originality/value
This study provides a benchmark case of how corporations are using a mainstream social media outlet to engage different stakeholders. It helps to assess the current status of public relations communication strategies on the mainstream social networking site. Companies can increase public engagement and response on social media through more personalized messages and techniques to encourage active participation and dialogue.