• Journal of Korean Society of Transportation
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• v.26 no.3
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• pp.7-16
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• 2008

The immigration procedure at airports is vital to making passenger and cargo transport faster. The rapid procedure of immigration could be an important determining factor when passengers select an air transport company, one that should have high satisfactory in terms of their service level and efficiency. Therefore, the advanced airport makes it easy for customers and their cargo to proceed. The coordination between authorities related to the Korean international airport is not satisfactory for customers. This paper analyzes the factors necessary to enhance the airport immigration procedure with the movement of aircrafts, passengers, cargo, and post, using the CK(Cook and Kress) model of DEA(Data Envelopment Analysis). From this study, the author found that research and development will be needed to improve the immigration procedure, especially on facilities and their operating systems. There are needed, also, performance indicators and a continuous monitoring system.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.20 no.9
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• pp.1657-1665
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• 2016

Various fields are being researched through Deep Learning using CNN(Convolutional Neural Network) and these researches show excellent performance in the image recognition. In this paper, we provide streamlined GoogLeNet of CNN architecture that is capable of learning a large-scale Korean character database. The experimental data used in this paper is PHD08 that is the large-scale of Korean character database. PHD08 has 2,187 samples for each character and there are 2,350 Korean characters that make total 5,139,450 sample data. As a training result, streamlined GoogLeNet showed over 99% of test accuracy at PHD08. Also, we made additional Korean character data that have fonts that are not in the PHD08 in order to ensure objectivity and we compared the performance of classification between streamlined GoogLeNet and other OCR programs. While other OCR programs showed a classification success rate of 66.95% to 83.16%, streamlined GoogLeNet showed 89.14% of the classification success rate that is higher than other OCR program's rate.

• Journal of KIISE:Information Networking
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• v.32 no.3
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• pp.327-338
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• 2005

Since the IEEE 802.11 wireless LANs were known to have several critical weaknesses in the aspect of security, a lot of works have been done to reduce such weaknesses of the wireless LAN security, Among them IEEE 802.lli may be the ultimate long-term solution that requires new security platform with new wireless LAM products. However, it might not be the best solution for small organizations due to its high cost where the cost is a critical issue. This paper proposes FR-WEP, a light-weight key management for wireless LANs that can be used with small changes of the existing Products. FR-WEP is an extension to a lightweight key management, WEP'(9), which was proposed lately. It makes up for the weak points of WEP' by providing lightweight mutual authentication with both host keys and user keys, and seamless key-refresh for authenticated users with fast re-authentication. It would be a good alternative to the heavy standards for wireless LAN security, especially to small organizations hoping for better security.

• Journal of Aerospace System Engineering
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• v.14 no.spc
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• pp.13-21
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• 2020

RTCA DO-178C is a development guideline to ensure aircraft system airworthiness. However, there is an opinion that the application of DO-178C to the development of UAV of more than MTOW 150 kg is over regulated because the severity of the risk from UAV is lower than that of normal aircraft. To address issue, EASA and FAA have been working on the Re-Engineering and Streamlining the Standards for Avionics Certification(RESSAC) project since 2016 with the goal of establishing a new certification scheme that simplifies existing aircraft certification procedures and standards. This paper analyzes the current DO-178C certification process and presents advantages by comparing and analyzing the new RESSAC certification process, which simplifies processes and outputs in comparing with the DO-178C certification process, while it ensures flight safety of the vehicle.

• The KIPS Transactions:PartD
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• v.17D no.6
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• pp.405-414
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• 2010

A rule is defined as a case to determine the target values according to combination of various Business factors. The information system is used to represent enterprise's business, which includes and implements the amount of these rules to Rule-Based System. A Rule-Based System can be constructed by using the rules engine method or Relational Database technology. Because the rules engine method has some disadvantages, the Rule-Based System is mostly developed with Relational Database technology. When business scales become larger and more complex, a large number of various rule cases must be operated in system, and processing these rule cases requires additional time, overhead and storage space, and the speed of execution slows down. To solve these problems, we propose a simplification algorithm that converts a large amount of rule cases to simplification rule cases with same effects. The proposed algorithm is applied to hypothetical business rule data and a large number of simplification experiments and tests are conducted. The final results proved that the number of rows can be reduced to some extent. The proposed algorithm can be used to simplify business rule data for improving performance of the Rule-Based System implemented with the Relational Database.

• Journal of the Korean Institute of Telematics and Electronics
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• v.13 no.4
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• pp.12-17
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• 1976

This paper deals with characteristics and analysis of the Universal Logic Modules as well as TULM, QULM and SULM. Studies are made on minimization in Storms of symmetric circuits and theoretical stuides are made by using the symmetric functions The symmetric circuits of the ULM are realized by employing 54/74 ICs, An oscillator circuit of 10KHz. is constructed based on the ULM. The experimental results gave a good agreement with the theoretical Minimization.

• Journal of Families and Better Life
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• v.13 no.1
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• pp.88-98
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• 1995

본 연구는 확대기 가정주부의 가사노동 시간관리 전략방안을 모색하기 위한 자료를 제공하려는 데 그 목적이 있으며, 연구결과를 요약하면 다음과 같다. 첫째, 주부의 가사노동시간은 1일 평균 6시간정도로서 80년대보다 감소한 것으로 나타났으며 유의적인 변수는 주부 의취업여부와 가족수이다. 둘째, 가사노동시간관리전략은 주부의 교육수준, 취업여부, 첫자녀나이, 월 총소득에 따라 의미있는 차이가 나타났다. 가사노동 시간관리전략의 하위영역인 가족성원간의 분담화는 주부의 취업여부, 첫 자녀나이, 가족수에 따라서 의미있는 차이가 나타났다. 가사노동 계통화에서는 가사노동 시간관리 전략의 하위영역중 가장 높은 평균점수를 나타냈으나 변수간에는 유의적인 차이가 나타나지 않았다. 가사노동 간소화는 주부의 교육수준, 취업여부, 결혼지속년수, 주거형태, 가족수, 월총소득에서 유의적인 차이가 나타난것으로 보아 대다수의 주부들이 가사노동을 간소화시키려는 의지가 있음을 알 수 있다. 가사노동 기계화는 주부의 교육수준, 월 총소득에 따라 유의적인 차이가 나탄났다. 세째, 가사노동시간에 영향을 미치는 가사노동시간관리전략은 간소화, 사회화 및 분담화로서 가사노동시간감소에 영향을 미치고 있으며, 계통화와 기계화는 가사노동 시간증가에 영향을 미치는 전략으로 나타났다.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.12 no.9
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• pp.1547-1553
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• 2008

This paper presents a method that generates various facial expressions of vector graphic character by using the simplified principle component vector. First, we analyze principle components to the nine facial expression(astonished, delighted, etc.) redefined based on Russell's internal emotion state. From this, we find principle component vector having the biggest effect on the character's facial feature and expression and generate the facial expression by using that. Also we create natural intermediate characters and expressions by interpolating weighting values to character's feature and expression. We can save memory space considerably, and create intermediate expressions with a small computation. Hence the performance of character generation system can be considerably improved in web, mobile service and game that real time control is required.

• Korean Journal of Construction Engineering and Management
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• v.22 no.4
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• pp.50-58
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• 2021

The rate of accidents in the domestic construction industry is on the rise, which is 1.9 times higher than in other industries in 2018. The increasing trend of construction accidents shows the limitation of the current construction safety management system, and enhancement of the effect to prevent accidents in the construction industry is required through carious measures for improvement. This paper aims to increase the efficiency of safety management in the construction industry by deriving standard safety management tasks to prevent accidents in the construction industry and deriving document simplification and importance based on IPA analysis results.

• Journal of Digital Convergence
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• v.18 no.12
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• pp.21-28
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• 2020

In this study, we reviewed the main strategies and contents of the work style innovation promoted by the Moon Jae-in government, and analyzed the contents and success factors of the work innovation based on the case of a specific local government. In particular, this study analyzes the case of innovation in the way of working through simplification of work, and the local governments, which were the subject of the study, received excellent evaluation in the government innovation evaluation of the Ministry of Public Administration and Security in 2019. In this study, we conducted in-depth interviews with employees of local governments to examine the problems, achievements, and success factors related to business simplification. First, it was found that it is very important to form consensus so that the members of the organization can participate in the change in order to simplify the task. Second, incentives, such as HR, were needed to induce active participation of members in the innovation project called Simplification of Work. Third, in order to induce and support organizational change, it was found that the interest and support of middle managers and directors were the most important factors. The results of this study will help to prepare the policy for innovation in the public sector's working style.