• Journal of the Korea Society of Computer and Information
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• v.21 no.1
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• pp.147-153
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• 2016

In this paper, we propose an efficient dynamic workload balancing strategy which improves the performance of high-performance computing system. The key idea of this dynamic workload balancing strategy is to minimize execution time of each job and to maximize the system throughput by effectively using system resource such as CPU, memory. Also, this strategy dynamically allocates job by considering demanded memory size of executing job and workload status of each node. If an overload node occurs due to allocated job, the proposed scheme migrates job, executing in overload nodes, to another free nodes and reduces the waiting time and execution time of job by balancing workload of each node. Through simulation, we show that the proposed dynamic workload balancing strategy based on CPU, memory improves the performance of high-performance computing system compared to previous strategies.

• Journal of the Korea Society of Computer and Information
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• v.16 no.9
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• pp.87-95
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• 2011

Recently, as smartphones have rapidly come into wide use and various social networking services have grown, people perform a variety of interactions through the virtual and real world based on them. Usually, such services focus on easy formation of social links among users, supporting the exchange of simple messages among users on the networks. Twitter, one of such services used worldwide, supports short message service named Tweet and has over 200 million members signed up. n this paper, we propose techniques for supporting real-time group messaging based on the social network of Twitter and describe a smartphone group messaging system developed with the techniques. The system automatically forms a group that include a Twitter user and the followers of the user, supporting real-time group messaging among the group members. The developed system is composed of an XMPP protocol-based messaging server and smartphone client applications which perform real-time messaging based on the social network of Twitter. Twitter users can easily use the system utilizing Tweet messages, exchanging real-time messages with their followers within the groups instantly established on the XMPP server.

• Journal of Information Technology Applications and Management
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• v.27 no.3
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• pp.1-18
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• 2020

Recently, following the development of FinTech technology that combines finance and information and communication technology, the need and social demands for a block chain technology-based trading system have increased significantly. In this study, a research model was developed and hypothesized through literature research on the concept of block chain technology, the technology acceptance model, and the unified theory of acceptance and use of technology. The research theories were tested by collecting data through surveys and analyzing the collected data. This study conducted empirical research to identify the factors influencing the user acceptance intention and utilization behavior of the block chain technology in introducing the block chain technology. First, factors affecting the acceptance intention of the blockchain user were performance expectation, effort expectation, social impact, and blockchain transparency variables. Second, the facilitation conditions and stakeholder confidence variables were analyzed as factors that did not affect the acceptability of the blockchain users. Third, variables such as blockchain transparency, stakeholder trust and intention of acceptance are factors that affect the usage behavior of the blockchain. Fourth, it was confirmed that the acceptance intention had a very high explanatory power on usage behavior of Blockchain technology.

• Journal of Korea Society of Digital Industry and Information Management
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• v.8 no.3
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• pp.1-10
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• 2012

Recently, Social Network services(SNS) is gaining popularity as Facebook and Twitter. Popularity of SNS leads to active service and social data is to be increased. Thus, social search is remarkable that provide more meaningful information to users. but previous studies using social network structure, network distance is calculated using only familiarity. It is familiar as distance on network, has been demonstrated through several experiments. If taking advantage of social context data that users are using SNS to produce, then familiarity will be helpful to evaluate further. In this paper, reflect user's attention through comments and tags, Facebook context is determined using familiarity between friends in SNS. Facebook context is advantageous finding a friend who has a similar propensity users in context of profiles and interests. As a result, we provide a blog post that interest with a close friend. We also assist in the retrieval facilities using Near Field Communication(NFC) technology. By the experiment, we show the proposed soicial search method is more effective than only tag.

• Journal of Science and Technology Studies
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• v.13 no.2
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• pp.1-35
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• 2013

The aim of this article is to criticize the discourses and practices of the appropriate technology for international development cooperation in Korea which focus narrowly on the technologies and are oriented to the providers of technologies. To present an alternative, we will discuss the appropriate technology by the insights from 'socio-technical system' studies which underline not only technological side but also the social, institutional and user's side, and analyze the interactions between them. This research deals with several cases mainly regarding small scale's renewable energy from Laos, Thailand, Bangladesh, Mongolia and Nepal. We put out some suggestions to improve the discourse and practices of appropriate technology in field of international cooperation by Korea.

• Journal of Korean society of Dental Hygiene
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• v.14 no.6
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• pp.961-966
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• 2014

Objectives: The purpose of the study was to investigate the classes of humanities and social sciences in the public health curricula. Methods: Data were collected through online received from 329 public health curricula from July to August, 2014. Categorized are introduction, management of hospital, medical health law, and ethics, patient psychology, others(communication, behavioral science, administration). The data were analyzed by a descriptive analyses and ${\chi}^2$-test(SPSS 12.0). Results: As a result of evaluate the classes of humanities and social sciences in the public health curriculum, 86.0% of department of occupational therapy, 71.4% of department of radiological technology and 72.6% of department of dental hygiene established more 4 classes. 92.1% of department physical therapy and 64.9% of department medical technology established more 5 credits. Numbers and credits of courses showed no differences by educational system. Conclusions: Humanities and social sciences are not popularly introduced in the most departments of public health sciences. Humanities and social sciences are very important and necessary for training competent future professionals in the public health sciences. So this study will provide the basic data for the introduction of humanities and social sciences in the public health curricula.

• Journal of Science and Technology Studies
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• v.3 no.1 s.5
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• pp.1-17
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• 2003

Though science and technology can understood as a part of cultural system, the relationship of science/technology with culture is often viewed as contradictory or mutually exclusive by many scholars. Therefore, in the first section of the present paper, the nature of science and technology as a cultural form is examined. Here, science is viewed as a form of symbolic culture, while technology is regarded as a form of instrumental culture. In the second section, the contradictory relationship and/or tensions between science-technological system (instrumental culture) and cultural system (symbolic culture) within a society is discussed. In the final section of this paper, 'science culture' is conceptualized as a dynamic social process in which contradictory science sub-cultures of political system(state), economic system(cooperations), civil society (including academic community of scientists and other social organizations and movements), and cultural system are supposed to be coordinated. In conclusion, establishment of 'humanized science culture' and 'democratic science-culture movement' is proposed as an alternative way of resolving contradictory relationship between cultural system and science-technological system in the modern world.

• Journal of the Society of Disaster Information
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• v.12 no.3
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• pp.249-260
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• 2016

This paper introduces the results of analysis of questionnaries for developing the effective responding method against social disasters by using ICT technologies. Over 200 peoples including 146 citizens and 55 officials and fireman responded on the questionnaries. In analytical results, approximately 87% citizens answered that the current disaster responding system has some problems, and also over 82% citizens is expecting that ICT is available to reduce the social disaster. For the question of necessity and efficiency of ICT implementation, many officials answered that the information of GIS and facilities would be mostly useful information to respond the social disaster.

• Journal of Distribution Science
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• v.22 no.1
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• pp.37-46
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• 2024

Purpose: This study aims to address the overlooked micro-level aspects within Smart Manufacturing (SM) research, rectifying the misalignment in manufacturing firms' estimation of their technological adoption capabilities. Drawing upon the Social-Technical Systems (STS) theory, this paper utilises innovation capability as a mediating variable, constructing a human-centric organizational model to bridge this research gap. Research design, data and methodology: This study collected data from 233 Chinese manufacturing firms via online questionnaires. Introducing innovation capability as a mediating variable, it investigates the impact of social-technical system dimensions (work design, social subsystems, and technical subsystems) on SM adoption willingness. Smart PLS 4.0 was employed for data analysis, and Structural Equation Modelling (SEM) validated the theoretical model's assumptions. Results: In direct relationships, social subsystems, technical subsystems, and work design positively influence firms' innovation capabilities, which, in turn, positively impact SM adoption. However, innovation capability does not mediate the relationship between technical subsystems and SM adoption. Conclusions: This study focuses on the internal micro-level of organisational employees, constructing a human-centric framework that emphasises the interaction between organisations and technology. The study fills empirical gaps in Smart Manufacturing adoption, providing organisations with a means to examine the integration of employees and the organisational social-technical system.

• International Journal of Advanced Culture Technology
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• v.12 no.2
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• pp.43-50
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• 2024

Foreign scholars pointed out that the root of the Korean economic crash was A Study on Corporate Social Responsibility and Moral Management due to the government's excessive regulations, the harmful effects of government finance, and the high-cost political structure. Despite the need to ease the rigidity of governmental finance and various regulations and operate the financial system through autonomous market mechanisms, it was argued that various bribes, express fees, and collusive lobbying funds were inevitably generated due to discretionary acts of bureaucrats with licenses and permits, complicated administrative procedures and systems, and regulatory changes in government policies. In fact, in developing countries, corruption was a necessary evil for economic development and was seen as a lubricant in economic management. The purpose of this study is to study the social responsibility and corporate ethics of chaebol. First: consider the problems of large corporations. Second, We will consider the direction and policy of corporate ethics. This paper sheds light on the ethical management of the Korean chaebol, considering that corporate ethics and transparency for the social responsibility of chaebols are important