• Journal of the Korea Institute of Information and Communication Engineering
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• v.15 no.1
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• pp.249-256
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• 2011

Since various applications is converged in digital televisions, playing game on DTV will be available in the immediate future. Game programming of DTV is more difficult than that of PC in a viewpoint of game development. Since TV use very simple remote controller as user interface, mapping type, choice type, and one-button type are used among mobile game user interfaces. In addition, we suggest to use text class, numeral class, bitmap class, and shape class of DTV OSD middleware which is proven software, instead of developing new DTV-oriented game engine. The proposed interfaces can be applied in various game situations and allow intuitive and fast operations. By using OSD middleware, game actions can be subdivided into state structures, OSD objects can be used as game objects, and events and actions of remote controller keys are easily defined.

• Journal of the Korea institute for structural maintenance and inspection
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• v.15 no.1
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• pp.120-128
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• 2011

Recently, safety diagnosis of the existing structures has been emerged as important issue. In particular, systematical and precise safety diagnostics for steel structures for power substation, have been required. Steel structures for power substation are under the periodical impact loads from operations of gas insulated switchgear. These loading condition accelerates damage and aging of structure. The objective of this research is to evaluate damage of structure under periodical impact loads. To evaluate the integrity of structures as organizing mathematical models including the dynamic characteristics of structures, Frequency Domain Decomposition method was choiced and an algorism was proposed. For verifying this methods and algorism, a mathematical model is composed of the development of a variety of reverse analysis and a signal processing technology reflecting physical damage of structures. A series of analysis and test results indicatge that proposed method has a confidence for applying a filed test. Therefore, it is expected to be able to take advantage of system identification to detect damage for the maintenance and management of steel structures under periodical impact loads such as power substation.

• Journal of Advanced Navigation Technology
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• v.27 no.1
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• pp.119-125
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• 2023

It is necessary to reduce aviation GHG(CO2) emission to ensure aviation sustainable development. Operational improvements may not contribute significantly to carbon reduction but it can sustatially reduce emission in a short term. ICAO has developed GANP and ASBU to optimize operations and countries are making efforts to expand infrastructure and develop technology. The legal barriers to operational improvement are based on the notion of state sovereignty under the Chicago Convention which allows countries to control inefficiencies based on borders or limit or prohibit the passage of aircraft. Chicago Convention does not grant unlimited freedom of air sovereignty and if the concept of state sovereignty is interpreted according to the times it is possible to achieve smooth operational improvement.

• Proceedings of the Korea Technology Innovation Society Conference
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• 2017.08a
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• pp.101-122
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• 2017

As business paradigm shifts toward the convergence of technology and industry, so-called the fourth industrial revolution, research and development on enterprises is becoming the core capability of growth momentum for the future. Accordingly, Management of Technology (MOT) is being paid attention to construct systematical planning and operations on technological strategy, thereby increasing the importance of cooperative relationship in MOT-relevant domains. Due to this reason, academia manages the family membership system that enables mutual collaborations between academia and industry to achieve their win-win strategy and makes customized cooperative systems to share their human and property resources systematically. Particularly, it is vital to operate the family membership system effectively and efficiently in the MOT domain because family enterprises need to endeavor the establishment of value-toward technology strategy within the framework of those cooperative systems. For such the purpose, this paper presents the analysis of the state-of-the art of the family membership system managed by Graduate School of Management of Technology at Pukyong National University. This paper also proposes vitalization strategies of this membership system so that famliy enterprises located in the east-southern area in Republic of Korea can gain MOT-oriented innovative capability.

• Journal of the Korea Convergence Society
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• v.8 no.11
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• pp.71-76
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• 2017

Our society is showing rapid growth throughout the industry, but it is in the era of nuclear family and aging. Due to the elderly, the demand for social welfare services such as medical treatment services tends to increase sharply. However, duties of senior citizens and social workers engaged in related medical care facilities are not clearly identified, and job stress has occurred and the degree of job satisfaction is extremely low. Therefore, in this paper, in relation to the social worker's duties of elderly nursing home care facilities, in practicing welfare services, knowledge base that was convergence with duties so that you can focus on service according to better environment and standardized procedures To provide a management system. Through the proposed system, social workers are expected to be able to improve work satisfaction by quickly grasping operations and escaping from job stress through their own development and information sharing.

• The Journal of Korean Association of Computer Education
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• v.8 no.3
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• pp.77-89
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• 2005

Design of a new information technology curriculum is very difficult work. It has relatively short history of operation. It advances very fast. Furthermore, people have very different understandings between information application and information knowledge. Therefore making decision for information technology contents is very difficult work. So we try to get effectiveness of the curriculum design through the comparison with other countries' cases. In this paper we tried to search and analyze about the historical trends, current states, and characteristics of Chinese information technology curriculum. China has strong focus on information technology education while she makes great success in economic development. We also suggested some good points of Chinese information technology curriculum which can be adapted to the design of a new Korean computer curriculum. The China's information technology curriculum is summarized by four categories. They are (1) educations on the basic knowledges and functions of the stable level of information technology, (2) educations on the information technology applications for the problem solving, (3) educations for the individualized learning through the research and project implementations in depth, and (4) systematic arrangements and integrated operations of the information technology curriculum.

• Journal of Biosystems Engineering
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• v.40 no.3
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• pp.165-177
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• 2015

Purpose: Accurate monitoring of soil strength is a key technology applicable to various precision agricultural practices. Soil strength has been traditionally measured using a cone penetrometer, which is time-consuming and expensive, making it difficult to obtain the spatial data required for precision agriculture. To improve the current, inefficient method of measuring soil strength, our objective was to develop and evaluate an in-situ system that could measure horizontal soil strength in real-time, while moving across a soil bin. Methods: Multiple cone-shape penetrometers were horizontally assembled at the front of a vertical plow blade at intervals of 5 cm. Each penetrometer was directly connected to a load cell, which measured loads of 0-2.54 kN. In order to process the digital signals from every individual transducer concurrently, a microcontroller was embedded into the measurement system. Wireless data communication was used between a data storage device and this real-time horizontal soil strength (RHSS) measurement system travelling at 0.5 m/s through an indoor experimental soil bin. The horizontal soil strength index (HSSI) measured by the developed system was compared with the cone index (CI) measured by a traditional cone penetrometer. Results: The coefficient of determination between the CI and the HSSI at depths of 5 cm and 10 cm ($r^2=0.67$ and 0.88, respectively) were relatively less than those measured below 20 cm ($r^2{\geq}0.93$). Additionally, the measured HSSIs were typically greater than the CIs for a given numbers of compactor operations. For an all-depth regression, the coefficient of determination was 0.94, with a RMSE of 0.23. Conclusions: A HSSI measurement system was evaluated in comparison with the conventional soil strength measurement system, CI. Further study is needed, in the form of field tests, on this real-time measurement and control system, which would be applied to precision agriculture.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.25 no.12
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• pp.1904-1913
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• 2021

With the proliferation of smart phones and the development of IoT technology, it has become possible to collect personal data for public purposes. However, users are afraid of voluntarily providing their private data due to privacy issues. To remedy this problem, mainly three techniques have been studied: data disturbance, traditional encryption, and homomorphic encryption. In this work, we perform simulations to compare them in terms of accuracy, message length, and computation delay. Experiment results show that the data disturbance method is fast and inaccurate while the traditional encryption method is accurate and slow. Similar to traditional encryption algorithms, the homomorphic encryption algorithm is relatively effective in privacy preserving because it allows computing encrypted data without decryption, but it requires high computation costs as well. However, its main cost, arithmetic operations, can be processed in parallel. Also, data analysis using the homomorphic encryption needs to do decryption only once at any number of data.

• Journal of Korea Society of Industrial Information Systems
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• v.14 no.4
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• pp.153-162
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• 2009

Innovation, especially business process innovation, has evolved into a core focus area for all successful organizations. To ensure long-tenn survival, an enterprise must place innovation at the top of daily business operations to drive desired revenue stability and growth. Business Process Innovation is a key success factor for the next generation enterprise. Companies need to nurture an environment that encourages and enables process innovation. Business Process Management (BPM) must become the focal point of innovation initiatives. But the most BPM solutions are for large company. The cost is too high to build for small and medium sized company. We need the light and easy BPM solution for small and medium sized company. In this paper, we introduce the SESS which is BPM solution for small and medium sized company.

• KIPS Transactions on Computer and Communication Systems
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• v.12 no.9
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• pp.273-282
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• 2023

Recently, various technologies such as logistics automation and port operations automation with ICT technology are being developed to build smart ports. However, there is a lack of technology development for port safety and safety accident prevention. This paper proposes an AI-based shipping container loading safety management system for the prevention of safety accidents at container loading fields in ports. The system consists of an AI-based shipping container safety accident risk classification and storage function and a real-time safety accident monitoring function. The system monitors the accident risk at the site in real-time and can prevent container collapse accidents. The proposed system is developed as a prototype, and the system is ecaluated by direct application in a port.