• Proceedings of the Korea Air Pollution Research Association Conference
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• 2000.11a
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• pp.299-301
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• 2000

대기환경기준 설정항목은 아황산가스를 비롯하여 이산화질소, 일산화탄소, 오존, 총부유먼지(TSP), 미세먼지(PM10), 납 6개항목이며, 이들 오염물질 중 아황산가스와 총부유먼지는 1990년대 급격히 오염도가 개선되는 경향을 보이고 있다. 일산화탄소와 납의 경우에도 환경기준을 대부분의 지역에서 만족하고 있으나 이산화질소와 오존은 개선되는 양상을 보이지 않고 있으며 도리어 오존의 고농도 발생현상은 증가 추세를 보이고 있다. (중략)

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2012.10a
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• pp.217-218
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• 2012

국토해양부 해상교통안전진단 시행지침에는 안전진단 항목으로 해상교통현황조사 및 측정, 혼잡도 분석, 선박조종시뮬레이션에 의한 통항 및 접이안 안전성 평가, 계류안전성 평가 등을 명시하고 있으며, 각 진단 항목별로 평가 방법 및 기준을 제시하고 있다. 해상교통안전진단 수행과정에서 이러한 평가 방법 및 기준에 대한 개선 방안 등을 고찰하였다.

• The Journal of the Convergence on Culture Technology
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• v.9 no.3
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• pp.37-47
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• 2023

In this study, the main items to be improved were identified with children's foodservice facilities in Anyang area, which have remained at low hygiene management levels for three years from 2019. The grades were divided into the Sprout groups if the previous level of meal hygiene management insufficient, and the Fruit groups if excellent. As a result, there were various items with low scores depending on the grade in facilities and the timing. Throughout the three years, the Sprout group had lower scores of all six areas than the Fruit group, and in particular, the score of 'preservation meals' was the lowest. In conclusion, it is necessary to recognize that meal hygiene management items to be improved are different from each grade in facilities, identify items to be thoroughly managed in advance, and provide appropriate guidance.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.22 no.4
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• pp.67-74
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• 2021

Domestically, technical condition evaluation for breakwaters has been conducted through safety checks and safety diagnosis. If necessary, maintenance for the facility is conducted. However, in recent years, the need for infrastructure management has been increasing from a life-cycle-cost perspective. For these reasons, the "Sustainable Infrastructure Management Basic Act" was enacted. Previously, only the technical part of the breakwaters was evaluated. However, based on the act, comprehensive management of breakwaters will be possible through performance improvement by adding economic and political evaluations. In this study, evaluation factors and evaluation methods were developed for a breakwater rehabilitation project. The purpose of this study is to present a development direction, items, and methods for the evaluation of breakwater performance improvement to be applied in future practice. This study reviews the concept of maintenance and performance improvement, the literature related to performance improvement, and the project type for the common standard of performance improvement. Evaluation items and evaluation methods for breakwater rehabilitation are suggested to be reviewed by experts. The methodology suggested in this study could be used for preventive maintenance and to reduce accidents.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.22 no.4
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• pp.538-544
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• 2021

Technology readiness assessment is a procedure for managing defense project risk factors based on the preemptive identification of technical risks. Under current regulations, technology readiness is determined based on considerations of the ratings of factors itemized on a checklist, whether unsatisfied factors have a fatal impact on the project, and whether countermeasures for unsatisfied factors have been established. However, objective criteria for assessing the impact of unsatisfied factors have not been presented, and thus, at present, the results of technology readiness level determinations are largely subjective. In addition, the importance of questions on the checklist is dependent on individual project characteristics and this is not considered during the assessment process. In this paper, we propose an improved technology readiness assessment procedure that considers the characteristics of each project. Using the proposed procedure, we quantitatively determined the importance of each checklist item using a weighting method. We found the devised procedure improved the reliability and objectivity of technology readiness assessment results. A case analysis of a complex weapons system is presented to demonstrate these improvements.

• Journal of the Korean Society of Food Science and Nutrition
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• v.46 no.4
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• pp.501-512
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• 2017

This study analyzed changes in nutrient contents of children's favorite foods between March 2010 and July 2012 after policy implementation on energy-dense and nutrient-poor (EDNP) foods based on Special Act on Safety Control of Children's Dietary Life in Korea. A total of 6,684 products in the list of children's favorite foods by the Ministry of Food and Drug Safety in March 2010 and 7,347 products in July 2012 were classified into the following three types: food products (1) manufactured or sold in 2012 as well as 2010 (n=6,174), (2) discontinued in 2012 (n=510), and (3) newly introduced in 2012 (n=1,173). Among children's favorite foods manufactured or sold in 2012 as well as 2010 (n=6,174), calories and key nutrients in sweetened ices, breads, ice creams, deep-fried noodles/noodles, ready-to-eat (RTE) foods, and pizzas were improved in comparison to those in the other food groups. However, most of the changes in calories or key nutrient contents per 100 g (or 100 mL) fell below 1 kcal or 1 g. The newly introduced candies, breads, and carbonated beverages showed slightly greater improvements in calories and key nutrient contents per 100 g (or 100 mL) than the discontinued ones in 2012. On the other hand, some negative changes were found in newly introduced chocolates and RTE foods in comparison to the discontinued ones. Overall, policy implementation on EDNP foods seemed to induce changes in nutrient contents of children's favorite foods, yet the extent of the changes was limited.

• The Journal of Korea Institute of Information, Electronics, and Communication Technology
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• v.12 no.6
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• pp.597-604
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• 2019

In this paper, we propose an improved method on an adaptive application of the CPP(Chinese Postman Problem) algorithm to the protocol test suite generation for conformance testing. Also, we present an example application of this CPP algorithm to B-ISDN Q.2931 call/connection control procedure for the purpose of showing how it can be adapted to generate a test suite for conformance testing of a communication protocol. The proposed method has an advantage of an optimization technique which finds a minimum cost of test suite from a standardized specification, so this optimization technique of the CPP algorithm can be practically applied to a real environment for testing a conformity of a protocol implementation.

• Journal of Convergence for Information Technology
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• v.9 no.3
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• pp.1-7
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• 2019

There are various cyber attacks on business PCs. In order to reduce the threat of PC security, we are preventing the vulnerability from being diagnosed beforehand. However, this guideline is difficult to cope with because the domestic vulnerability guide does not update the diagnostic items. In this paper, we examine the cyber infringement cases of PCs and the diagnostic items of foreign technical vulnerabilities in order to cope with security threats. In addition, an improved guide is provided by comparing the differences in the diagnostic items of technical vulnerability from abroad and domestic. Through 41 proposed technical vulnerability improvement items, it was found that various security threats can be coped with. Currently, it is mainly able to respond to only known vulnerabilities, but we hope that applying this guideline will reduce unknown security threats.

• Proceedings of the Korea Database Society Conference
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• 2008.05a
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• pp.193-210
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• 2008

본 연구는 웹사이트에 대한 사용자와 제공자의 인식의 차이를 확인하고 분석한 후 이를 데이터마이닝을 이용해 웹사이트의 개선을 위한 전략의 도출을 제시하고자 한다. 이 연구에서는 웹사이트 사용자와 제공자간의 인식차이 분석을 위하여 기존 문헌 연구를 통해서 웹사이트 개선을 위한 웹사이트의 평가 요인과 항목을 중심으로 인터넷 서점 사이트를 연구대상으로 한 설문지를 재구성하였다. 그 다음 동일한 문항으로 사용자와 제공자에게 각각 설문 조사를 실시하여 데이터를 수집하였다. 수집된 사용자와 제공자 각각의 응답을 통계분석을 통해 비교하고 그 차이를 확인한 후 조하리 창(Johari Window)을 바탕으로 인식차이에 대한 분석을 하였다. 웹사이트의 개선을 위한 전략을 도출하기 위해서 사용자와 제공자간 인식차이가 상이하게 나타난 설문 항목에 대해 데이터마이닝을 이용하여 응답 데이터에서 규칙을 도출해내고 이를 기반으로 웹사이트 사용자와 제공자간 인식차이 분석을 통한 웹사이트 개선전략을 제시하였다.

• Journal of Wetlands Research
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• v.11 no.3
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• pp.21-35
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• 2009

To propose a sound direction for river rehabilitation plan, the naturalness of the river must be evaluated. In this study, the conventional methods for evaluating the naturalness of rivers proposed by Park, et al. has been improved to estimate the weights for each items subject to assessment and applied adequate Analytic Hierarchy Process (AHP). To estimate the weights, survey was conducted on a group of 83 experts in Civil and Environmental Engineering with a customized questionnaire. The results of the survey were generalized and used to estimate the weights of each items. Among the 14 evaluation items that have been generated as a result of the estimation, a total of 7 weight values such as water quality, variations in water flow, vegetation around minor bed, curve of waterway, vegetation around flood plain, variety in minor bed width, and diversity of stream bed materials appeared to be high. The improved method for evaluating the naturalness of rivers was applied to Hoe-ya River, where the method has successfully discriminated the sections having low degree of naturalness. The proposed assessment method can be employed as a criterion to determine the business zones in the river environment maintenance projects.