사이버 공간과 물리 공간이 연계된 사이버 무기체계의 효과성 분석 프레임워크 연구

장지수,김국진,윤석준,박민서,안명길,신동규,Jang, Ji-su,Kim, Kook-jin,Yoon, Suk-joon,Park, Min-seo,Ahn, Myung-Kil,Shin, Dong-kyoo 한국인터넷정보학회 2022 인터넷정보학회논문지 Vol.23 No.5

As operations that were only conducted in physical space in the past change to operations that include cyberspace, it is necessary to analyze how cyber attacks affect weapon systems using cyber systems. For this purpose, it would be meaningful to analyze a tool that analyzes the effects of physical weapon systems in connection with cyber. The ROK military has secured and is operating the US JMEM, which contains the results of analyzing the effects of physical weapon systems. JMEM is applied only to conventional weapon systems, so it is impossible to analyze the impact of cyber weapon systems. In this study, based on the previously conducted cyber attack damage assessment framework, a framework for analyzing the impact of cyber attacks on physical missions was presented. To this end, based on the MOE and MOP of physical warfare, a cyber index for the analysis of cyber weapon system effectiveness was calculated. In addition, in conjunction with JMEM, which is used as a weapon system effect manual in physical operations, a framework was designed and tested to determine the mission impact by comparing and analyzing the results of the battle in cyberspace with the effects of physical operations. In order to prove the proposed framework, we analyzed and designed operational scenarios through domestic and foreign military manuals and previous studies, defined assets, and conducted experiments. As a result of the experiment, the larger the decrease in the cyber mission effect value, the greater the effect on physical operations. It can be used to predict the impact of physical operations caused by cyber attacks in various operations, and it will help the battlefield commander to make quick decisions.

단어 친숙도와 음소 난이도에 따른 말소리장애 아동과 일반 아동의 조음 정확도 및 변이성

장지수(Ji-Su Jang),하승희(Seunghee Ha) 한국언어청각임상학회 2021 Communication Sciences and Disorders Vol.26 No.2

배경 및 목적: 본 연구는 단어 친숙도와 음소 난이도에 따른 말소리장애 아동과 일반 아동의 조음 정확도 및 변이성을 살펴보고자 하였다. 방법: 만 2세 6개월-11개월 말소리장애 아동 10명과 일반 아동 14명이 본 연구에 참여하였다. 단어 친숙도와 음소 난이도를 고려하여 목표단어 20개를 제작하였다. 20개의 단어를 각 3번씩 산출하도록 하였으며 음소 정확도와 변이성 점수를 구하였다. 결과: 말소리장애 아동은 일반 아동보다 유의미하게 낮은 정확도와 높은 변이성을 보였다. 단어 친숙도에 따라 살펴보았을 때 정확도는 유의미한 차이가 없었으나 변이성은 유의미한 차이가 나타났다. 음소 난이도에 따라서는 정확도와 변이성 모두에서 유의미한 차이를 보였다. 논의 및 결론: 본 연구는 2세 6-11개월 말소리장애 아동과 일반 아동에게 단어 친숙도와 음소 난이도는 조음 정확도에 영향을 끼치고 음소 난이도에 따라 조음 변이성도 달라짐을 보여주고 있다. 조음 변이성과 관련 요인을 정상적이거나 지연 또는 병리적인 말소리 습득 과정의 관점에서 논의하였다. 본 연구는 3세 미만의 말소리장애 아동의 진단과 중재에 대해 시사하는 바가 있다. Objectives: This study aims to examine the articulatory accuracy and variability according to word familiarity and phoneme difficulty in children with speech sound disorders (SSD) and typically developing children. Methods: The participants were 10 children with SSD and 14 typically developing children aged from 2 years 6 months to 2 years 11 months. The 20 target words were selected according to word familiarity and phoneme difficulty. Each child was asked to produce each target word three times and the percentage of correct phonemes and variability scores were obtained. Results: The results showed that articulatory accuracy of children with SSD was significantly lower and their articulatory variability was significantly higher than those of typically developing children. There was no significant difference in articulatory accuracy according to word familiarity, but there was a significant difference in articulatory variability. Significant differences were found in articulatory accuracy as well as variability according to phoneme difficulty. Conclusion: This study suggested that phoneme difficulty affects articulatory variability in children with and without SSD aged 2:6–2:11. The articulatory variability and the related significant factors were discussed from the perspective of normal and delayed/abnormal speech acquisition processes. The study has useful implications for diagnosis and intervention for young children with SSD below 3 years old.

친환경 섬유 소재의 적용 사례 연구

장지수(Jang Ji su),정지숙(Chung Ji sook) 한국조형디자인학회 2015 조형디자인연구 Vol.18 No.4

최근 인류는 환경오염과 자원 고갈 문제로 인해 심각한 자연 재앙을 맞고 있다. 그리하여 친환경에 초점을 두고, 실내 마감재에서 사용되는 사례 중 친환경 섬유 소재로 만들어진 제품들을 살펴보고 환경오염을 줄일 수 있는 방안을 모색하는 것에 그 목적을 두었다. 연구 결과, 첫째, 건축의 모든 과정에서는 환경의 침해와 자원의 고갈 등의 문제점을 가지고 있다. 그렇기 때문에 실내 마감재에 있어서, 점차 지속 가능한 소재로 만들어지는 제품이 개발되고 있다. 이는 친환경적일 뿐 아니라 기능성과 심미성까지 갖추고 있다. 그러나 아직까지 국내 업체에서 개발의 어려움과 경제적 이유로 인하여, 개발되는 실내 마감재에는 한계가 있다. 그러므로 정부나 학계에서, 개발비 지원 및 공동 연구 등이 이루어져야 할 것이다. 둘째, 실내 마감재로써 친환경 섬유 소재의 적용 사례를 알아보았다. 그 결과, 예상보다 다양한 소재와 기법으로 개발된 것을 볼 수 있었다. 거의 대부분의 제품의 제작 단계에서는 친환경적 공정을 거쳤다. 하지만 다른 제품과 마찬가지로, 폐기 단계에서까지 지속 가능한 특성을 보이지 못한 것이 많았다. 이것은 환경오염에 대하여 소비자의 의식이 변화되고, 시공하는 업체에서도 친환경에 대한 인식을 공감한 후 진행하여야만, 그 문제가 해결될 수 있을 것이다. Recent humanity is facing a severe natural disaster due to environmental pollution and resource depletion issues. Thus, with a focus on eco-friendly, it looked at the case of products made with eco-friendly fiber materials used in the interior finishes and it reposed the object to find ways to reduce the environmental pollution. Results First, the whole process of construction has a problem of depletion of resources and environment of the infringement. In the interior finishing Therefore, this product is made of a sustainable material is being developed gradually. This has not only environmentally friendly to the functionality and aesthetics. But for some reason the development and economic difficulties in domestic areas yet due, the interior finishing development is limited. Therefore, in government or academia, R & D support and collaboration such as this it will be done. Second, we evaluate the applications of environmentally friendly materials as fiber interior finishing. As a result, it could be seen that the estimated more developed in various materials and techniques. Almost the production phase of most products went through environmentally friendly processes. However, as with other products, it was it not seem sustainable in nature to the disposal stage. It is this awareness of consumers about the environmental changes, a sympathetic awareness of eco-friendly construction and must proceed even in companies that will be able to be resolved.

5종 화분의 항산화, 항균 및 항당뇨 활성

표수진(Su-Jin Pyo),장지수(Ji-Su Jang),손호용(Ho-Yong Sohn) 한국양봉학회 2020 韓國養蜂學會誌 Vol.35 No.1

나노임프린트 리소그래피 적용을 위한 CHF₃ 플라즈마를 이용한 실리콘 몰드 표면 처리 특성

김용근,김재현,유반석,장지수,권광호,Kim, Young-Keun,Kim, Jae-Hyun,You, Ban-Seok,Jang, Ji-Su,Kwon, Kwang-Ho 한국전기전자재료학회 2011 전기전자재료학회논문지 Vol.24 No.10

In this study, the surface modification for a silicon(Si) mold using $CHF_3$ inductively coupled plasma(ICP). The conditions under that plasma was treated a input ICP power 600 W, an operating gas pressure of 10 mTorr and plasma exposure time of 30 sec. The Si mold surface became hydrophobic after plasma treatment in order to $CF_x$(X= 1,2,3) polymer. However, as the de-molding process repeated, it was investigated that the contact angle of Si surface was decreased. So, we attempted to investigate the degradation mechanism of the accurate pattern transfer with increasing the count of the de-molding process using scanning electron microscope (SEM), contact angle, and x-ray photoelectron spectroscopy (XPS) analysis of Si mold surface.

연구논문(硏究論文) : 패스트푸드점의 서비스 품질이 고객만족과 고객충성도에 미치는 영향 -이용자 특성에 따른 차이를 중심으로-

추윤경 ( Yun Kyung Chu ),장지수 ( Ji Su Jang ) 한국관광산업학회 2010 Tourism Research Vol.30 No.-

The subjects of the study are the fast food restaurants in Daegu Metropolitan City. I t is because the investigation of the customer satisfaction in the present fast food restaurants is insufficient. The sampling has been conducted with the domestic customers in Daegu using the fast food restaurants as samples. The findings based on the methods of study and analyses of the materials are as follows: First, it is shown that the service quality has a significant influence on the customer satisfaction. Second, it is shown that the customer satisfaction has a significant influence on the customer loyalty. Third, it is shown that the using styles and the average expenditures in terms of the using characteristics have a significant influence on the customer satisfaction. Fourth, it is shown that the using styles and the average expenditures in terms of the using characteristics have a significant influence on the customer loyalty. Accordingly, it is necessary for the managers of the fast food restaurants and their employees to make efforts for the customers to perceive much the matters of the service quality. Finally, it is necessary to develop continuously concrete and scientific measuring instruments which can examine the relations between the service quality, the customer satisfaction and the customer loyalty, and it is also necessary for the study of the future to establish the models of study suitable for the Korean situations without depending on the foreign precedent studies and to develop measuring items.

설암 수술 후 발생한 지속성 딸꾹질 환자에서 초음파와 신경자극기를 이용한 일측 횡격막신경 차단 -증례보고-

강상수 ( Sang Soo Kang ),장지수 ( Ji Su Jang ),박준희 ( Jun Hee Park ),홍성준 ( Seong Jun Hong ),신근만 ( Keun Man Shin ),윤영준 ( Yeong Jun Yun ) 대한마취과학회 2009 Korean Journal of Anesthesiology Vol.56 No.2

루테늄 촉매를 이용한 에탄의 수증기 개질 반응 Kinetics와 반응기 Sizing

신미 ( Mi Shin ),성민준 ( Min Jun Seong ),장지수 ( Ji Su Jang ),이경은 ( Kyung Eun Lee ),조정호 ( Jung Ho Cho ),이영철 ( Young Chul Lee ),박영권 ( Young Kwon Park ),전종기 ( Jong Ki Jeon ) 한국공업화학회 2012 공업화학 Vol.23 No.2

상업용 루테늄 촉매 상에서 에탄의 수증기 개질 반응에 대한 kinetics 데이터를 얻기 위하여 반응온도, 에탄의 분압, 수증기/에탄의 비 등을 변화시키면서 반응 실험을 수행하였다. Kinetics 데이터를 사용하여 Power rate law kinetic model과 Langmuir-Hinshelwood model의 parameter를 구하였다. 또한 kinetic model식을 적용하여 PRO/II를 이용한 공정 모사를 통해서 에탄의 수증기 개질 반응기 sizing을 수행하였다. 동일한 전환율을 얻기 위해서는 Power rate law model을 적용하였을 경우가 Langmuir-Hinshelwood model을 적용하였을 경우보다 개질 반응기의 부피가 더 큼을 알 수 있었다. Langmuir-Hinshelwood model에 의해 계산된 반응 속도가 반응 실험 결과에 의해 구해진 반응 속도와 더 잘 일치했기 때문에 Langmuir-Hinshelwood model을 적용하여 계산된 반응기의 크기가 실제 반응기 설계에 더 적절하다고 판단된다. In this study, kinetics data was obtained for steam reforming reaction of ethane over the commercial ruthenium catalyst. The variables of ethane steam reforming were the reaction temperature, partial pressure of ethane, and steam/ethane mole ratio. Parameters for the power rate law kinetic model and the Langmuir-Hinshelwood model were obtained from the kinetic data. Also, sizing of steam reforming reactor was performed by using PRO/II simulator. The reactor size calculated by the power rate law kinetic model was bigger than that of using the Langmuir-Hinshelwood model for the same conversion of ethane. Reactor size calculated by the Langmuir-Hinshelwood model seems to be more suitable for the reactor design because the Langmuir-Hinshelwood model was more consistent with the experimental results.

견관절경 수술 후 Ropivacaine, Ropivacaine과 Fentanyl, Ropivacaine, Fentanyl과 Ketorolac의 관절강 내 지속적 주입 시 진통효과에 대한 비교연구

김일석 ( Il Seok Kim ),신근만 ( Keun Man Shin ),강상수 ( Sang Soo Kang ),장지수 ( Ji Su Jang ),홍성준 ( Sung Jun Hong ),윤영준 ( Yeong Joon Yoon ),이희제 ( Hee Je Lee ) 대한마취과학회 2009 Korean Journal of Anesthesiology Vol.56 No.3

Background: Arthroscopic shoulder surgery can result in severe postoperative pain. A variety of methods have been used to control pain in postoperative period and the results are variable. The purpose of this study was to compare the relative analgesic efficacies of the postoperative intraarticular infusion of ropivacaine, ropivacaine/fentanyl, and ropivacaine/fentanyl/ketorolac after arthroscopic shoulder surgery. Methods: Thirty patients undergoing arthroscopic shoulder surgery under general anesthesia were randomly assigned to three groups. At the end of surgery, 0.5% ropivacaine 20 ml was infused into the articular space and a continuous infusion catheter was inserted into intraarticular operated site. After surgery, continuous infusion of 0.5% ropivacaine 100 ml (Group 1, n=10), 0.5% ropivacaine 100 ml including fentanyl 10 μg/kg (Group 2, n=10), or 0.5% ropivacaine 100 ml including fentanyl 10 μg/kg and ketorolac 150 mg (Group 3, n=10) was started through catheter at rate of 2 ml/hr with bolus dose of 0.5 ml with a lock out time of 15 minutes for 2 days. The level of pain was assessed using a visual analogue scale (VAS) postoperative 2, 6, 12, 24 and 48 hours and the amounts of supplemental analgesics were recorded. Results: The VAS was significantly lower after 2, 6, 12 hours in Group 2 than in Group 1. In Group 3, the VAS was significantly lower all hours than in the other two groups. Conclusions: The combination of fentanyl and ketorolac with ropivacaine did provide better postoperative analgesia than the other groups after arthroscopic shoulder surgery. (Korean J Anesthesiol 2009; 56: 303∼8)