• Journal of the Korea Institute of Information Security & Cryptology
• /
• v.24 no.1
• /
• pp.15-29
• /
• 2014

Increasing the smart instrument based social and economical activity, problems of electronic business's safety, reliability and user's privacy are be on the rise. so variety standard cryptography algorithms for information security have been developed in korea and How to efficiently implement them in a variety of environments is issued. ARIA and SEED, developed in Korea, are standard block cipher algorithm to encrypt the 128-bit plaintext, are each configured Feistel, SPN structure. In this paper, SEED and ARIA were implemented using the GEZEL language that can be used easily in the software designer because grammar is simple compared to other hardware description language. In particular, in this paper, will be described in detail the characteristics and design method using GEZEL as the first paper that implements 128bits ARIA and SEED and it showed the flexibility and efficiency of development using GEZEL. SEED designed GEZEL is occupied 69043 slice, is operating Maximum frequency 146.25Mhz and ARIA is occupied 7282 slice, is operating Maximum frequency 286.172Mhz. Also, Speed of SEED designed and implemented signal flow method is improved 296%.

• The Journal of Korean Institute of Electromagnetic Engineering and Science
• /
• v.23 no.2
• /
• pp.235-243
• /
• 2012

In this paper, we propose a method to improve performance of pilot symbol assisted modulation(PSAM) channel estimation method for OFDM systems over frequency selective channel. When channel values are estimated, the low pilot density used for channel estimation increases not only the effective data rate but also power efficiency. Thus, the lower pilot density which is used for channel estimation is better for OFDM system. At first, we estimate the channel values which are located at the middle of adjacent pilots, and then all of the possible channel values are estiamted by using original pilot values and previously estimated pilot values. Furthermore, the error of estimated channel values is reduced by introducing guard interval which is designed acccording to maximum channel delay. Performance achieved with the proposed method is illustrated by simulation experiments in comparison with the existing methods in terms of mean squared error(MSE).

• International Commerce and Information Review
• /
• v.16 no.4
• /
• pp.171-190
• /
• 2014

A short consumption cycle caused by the technological development and the diversification of customer lead to both the dynamic growth of the industry and the waste recycling issue at the same time. Including Korea, the situation is particularly worrisome in some countries, such as India and China, where acute environmental hazards have resulted from a combination of a lack of recycling centers' capacity and the domination of a large backyard recycling sector. A study about to maximize the current recycling center efficiency with minimal changes is required. In this study, we suggest the optimal location selection method for the recycling center based on the well-known reverse logistics cost minimization model. An actual recycling data about a specific electronic equipment and region in Korea are used for the verification of the method suggested.

• Journal of Digital Convergence
• /
• v.10 no.8
• /
• pp.63-71
• /
• 2012

Smart is becoming a social fever since Apple had invented iPhone. It looks old fashioned, if the word Smart is missed in TV, phone even white electronic goods. Korean's major firms made a slogan Smart Work as an important business strategy and tried to implement some activities. These Smart trends influenced the way people's working and organization. In this research, we explore the key factors related to smart work and empirically test the significance of antecedent variables such as Dynamics, Collaborativeness, Connectivity in determining the smartwork level. The statistical result, based upon survey responses, shows that organizational dynamics, organizational collaborativeness and process collaborativeness are the most salient factors for smarkwork level. As a conclusion, the academic and practical implications of these findings are also discussed.

• Journal of the Korea Institute of Information and Communication Engineering
• /
• v.20 no.7
• /
• pp.1317-1324
• /
• 2016

Utilizing the Arduino platform to express the emotions that reflect the colors expressed the jewelry. Emotional color expression utilizes Plutchik's Wheel of Emotions model was applied to the similarity of emotions and colors. It receives the recognized value from the temperature, lighting, sound, pulse sensor and gyro sensor of a smart jewelery that can be easily accessible from your smartphone processes that recognize and process the emotion applied the rules of inference based on ontology. The emotional feelings color depending on the color looking for the emotion seen in context and applied to the smart LED jewelry. The emotion and the color combination of contextual information extracted from the recognition sensors are reflected in the built-in smart LED Jewelry depending on the emotions of the wearer. Take a light plus the emotion in a smart jewelery can represent the emotions of the situation, the doctor will be able to be a tool of representation.

• Journal of the Korea Institute of Information and Communication Engineering
• /
• v.20 no.9
• /
• pp.1785-1790
• /
• 2016

There is exhibit a degree of pain in the occurrence and course of treatment levels or oral, pain rating scale actions, such as illness, for example, the discomfort scale because of the pain "annoying", "unpleasant" "annoyed am", "painful" represents a pain scale of the order of "painful", "hard to bear", "very difficult to bear". Depression is recognized based on the premise of the situation, because it is difficult to recognize themselves. In this paper we define the components of the depression can be seen lifestyle which can lead to depression or through a biological signal. The depression index was derived from the ontology modeling to understand the state of depression. Depression ontology components and depression index will be aware of the situation based information services for depression. Combined with the situational awareness based devices and can be synchronized to verify the results of the depression index. It will be applied to improve lifestyle factors that of depression.

• Journal of the Korea Academia-Industrial cooperation Society
• /
• v.16 no.12
• /
• pp.8896-8900
• /
• 2015

Recently, various career paths draw young workers from twenty to forty to the metro city in Korea. The korea's agriculture sector has decrease in population and productivity which result a threat for it to become an aging society. Also, our country has a difficulty in a tough competition with other countries through agricultural market-opening such as WTO and FTA. In this paper, we introduce a technology using open-source project including Raspberry that easily accessible and applicable to an agricultural industry. In other words, as we build a device monitoring the production environment, everyone can use agricultural sector through an IoT technology, solve the problem with a labor shortage through production process automation, check the condition of the agricultural environment in real time, enhance the quality of the agricultural product by corresponding a certain condition, and improve the competitiveness through a competitive price comparing to the worldwide farm product. Also, we find a way to use data to the other business through data collection and analysis in a process of using the IoT.

• Journal of the Korean Society for information Management
• /
• v.22 no.4 s.58
• /
• pp.111-128
• /
• 2005

University libraries have been facing challenges to accomplish both roles of traditional libraries as physical places and virtual libraries which service electronic resources effectively. University libraries need to establish a strategic plan as a positive tool for designing the future of university libraries addressing threats and opportunities at the same time. This study suggested the core elements be involved in strategic plans of university libraries through comparatively analyzing the actual documents of strategic plans of academic libraries in America, England, Canada and Australia. These strategic plans were divided into formal elements and content elements. In addition, this study presented the latest strategic plans of academic libraries such as UMI. OULS, UBCL, and USL. As a result of research, this study provided the directions and basic materials in order to establish strategic planning at university libraries in Korea.

• The Journal of The Korea Institute of Intelligent Transport Systems
• /
• v.6 no.1 s.12
• /
• pp.1-12
• /
• 2007

The objective of Bus Information System developed as a part of the ITS, provides the operation information of buses to passengers and managers. The system uses roadside antennas (reading electronic tags on board buses) to enable wireless communication each other and radio data communication to deliver information about buses and their locations. This information is used to estimate the arrival time of the bus which will be shown on the bus stop message board or via internet. Bus Information System or Bus Management System (BMS) is going ahead and set up in many local governments, and recently quality improvement of the BIS is considered as a very important element in expanding of business or management. Therefore this research wished to contribute rationalization of the system by maintaining optimum quality. An gang was chosen to apply overall quality control process and will be evaluated in terns of its propriety and performance. This study has led the improvement of service and promote the use of public transits, which is the best way to solve the city traffic problem by effective management of public transits.

• Journal of Technology Innovation
• /
• v.19 no.3
• /
• pp.57-83
• /
• 2011

We suggested industry-specific priorities of R&D investment with R&D investment elasticity to GDP calculated from the ripple effect of 28 large-sized industry R&D investment, using a Computable General Equilibrium(CGE) Model. Priority orders apply to only 12 industries, because 16 industries with less than 1% of total investment have been excluded. First, R&D investment elasticity to GDP says that priorities are ordered as Basic metal products, Chemicals, drugs and medicines, Food, beverages and tobacco products, Electronic and electrical equipment, Transportation equipment, Precision instruments, Electrictity, gas, steam and water supply, General machinery and equipment, Communications and broadcasting, Construction, Other services, and Real estate and business services. These priorities show the status quo of Korean industry structures well. The GDP growth rate to 2030 year reference equilibrium, which is an auxiliary index, says a similar priority to results from R&D investment elasticity to GDP. In the end, two criteria of priority order can be functioned as a good index for National Science and Technology Commission deciding what industry to invest and what budget to allocate.