연관규칙을 활용한 ASL 선정 연구

최명진(Myoung-Jin Choi),이상훈(Sang-Hoon Lee),양재경(Jae-Kyoung Yang) 한국산업경영시스템학회 2012 한국산업경영시스템학회 학술대회 Vol.2012 No.-

When customers purchase a product, the process of searching for any purchase pattern process is called 'Association Rule'. For using of this, if the customers is using unit of spare parts and the stores of displaying and selling the goods are the facility unit of having the spare parts, it will be represented that the demend pattern through the sales list in facility units. Current ASL(Authorized Stockage List) selection is the way of using the result analyzed actual experience used spare parts during the Korea War. it is specified that ASL selection criterion and procedures based on Army regulations and field manuals. This method is not conducted the association analysis between spare parts used the current equipment operating, and have not the clear criterion and analysis system about the ASL selection. In this study, in order to solve these problems, it was carried out the Association Rule targeting the sales list of the spare parts in point of between the using unit and products of occurred month based on the table designed the star-schema. And it is studied and proposed that the ASL selection way using the analysis result.

하우스푸어에 대한 재무설계 사례연구

최명진(Myoung Jin Choi) 한국FP학회 2017 Financial Planning Review Vol.10 No.3

하우스푸어는 주택을 소유함에도 불구하고 가처분소득 가운데 주택관련대출로 인한 원리금 상환에 큰 비용이 들어 가계재정 유지에 어려움을 겪는 가구를 의미한다. 최근 가계부채의 급격한 증가가 주요한 경제문제로 대두되고 있는 것으로 볼 때 하우스푸어 문제가 상당히 심각한 수준일 것으로 추측되고 있다. 본 연구에서는 주택관련대출로 인하여 심각한 고통을 겪고 있는 하우스푸어의 재무설계 사례를 제시한다. 본 사례에서의 고객은 고소득임에도 불구하고 매월 주택관련 대출상환문제와 함께 생활비, 교육비, 양육비 등으로 월 소득이 적자인 상황에서 고통스럽게 생활하고 있었다. 본 재무설계 사례에서는 실행가능한 재무 솔루션을 통해 합의점을 찾고, 지속적인 모니터링을 통해 주택 관련 부채에서 해방되어 궁극적으로 하우스푸어를 벗어나게 되는 과정을 제시하고 있다. House poor means households that are struggling to maintain household finances for a large cost of repayment out of disposable income due to the mortgage loan. All things considered, recently the economic problem has come to the fore due to rapid increase in household debt, house poor problem is being speculated to be a fairly serious level. This paper tries to present a financial planning model for a house poor who is suffering from serious pain from mortgage debt. In spite of a high-income bracket, they have lived in short of income due to redemption of the loan, daily living expenses, educational expenses for children and parents support expenses. In this financial planning case, we reach an agreement for a feasible financial solution. This financial planning case shows the importance of continuous monitoring and debt management.

장바구니 분석을 활용한 ASL 선정 연구

최명진(Myoung-Jin, Choi) 한국산업경영시스템학회 2012 한국산업경영시스템학회지 Vol.35 No.2

In this study, It is assumed that customers are both usage unit of spare parts and stores of displaying and selling the goods that are installation unit of having the spare parts. The demand pattern through the effective order of spare parts and issue list in installation unit is investigated based on the assumption. Current ASL (Authorized Stockage List) selection of the army has been conducted in the way of using the analysis result of real usage experiences on spare parts used during the Korea War. For this study, ASL selection criteria and procedures based on army regulations and field manuals are specified. Since the traditional method does not presents the association analysis on spare parts used for the current equipment operating and does not have the clear criterion and analysis system about the ASL selection, in order to solve these problems, it was carried out that the association rule is employed for analyzing relationship between the effective order and issue list of the spare parts in point of the spare parts between usage unit and occurring month about purchase spare parts based on the star-schema table. Finally the new ASL selection way using the analysis result is proposed.

공주(公州) ‘인물 지명’의 지역성

최명진(Myoung Jin Choi) 한국문화역사지리학회 2022 문화 역사 지리 Vol.34 No.1

이 연구는 인물 지명을 통해 지역성을 탐색해 보려는 시론적인 목적이 있다. 인물 지명에 주목하는 이유는 그 지역의 잘 알려지지 않았던 역사적 사건부터 새로운 인물 발굴까지 다양한 단서를 찾을 가능성이 높기 때문이다. 이러한 맥락에서 지역 인물의 활동이 지명에 투영되고 있음을 지역사의 측면에서 확인하고자 하였다. 따라서 본 연구는 역사적 특수성이 짙은 공주(公州)를 대상으로 인물로 인하여 유래된 지명만을 선별하여 연구를 진행했다. 그 결과 공주에는 모두 167건의 인물 지명이 확인되었고, 몇 가지 유의미한 정황들을 파악할 수 있었다. 지명들의 지리적 위치는 주로 금강에 인접한 곳에 집중도가 높았으며, 대다수의 지명 유형은 마을 이름이었다. 지명 속 등장인물들은 이름을 알 수 있는 인물과 성씨에 관련된 정보만으로 파악되는 인물로 나누어졌다. 인물들을 분석해 보니, 공주에 가장 많은 지명을 가진 인물은 고려말 조선초 탄압을 피해 공주에 피신했던 개성 왕씨였다. 지명 속 등장인물의 활동 분야는 문무 관리, 성씨, 학자·선비 등 총 12개의 유형이 확인되었다. 이중 문무 관리와 성씨가 지명 유래에 가장 많은 영향을 주었음을 알 수 있었다. 이렇듯 인물로 유래된 지명들을 종합적으로 검토한 결과 인물의 활동과 지명유래가 일정한 연관성을 가지고 있다는 점을 밝혀낼 수 있었고, 지명을 통해 공주의 역사와 문화가 거쳐온 지역적 특성도 확인할 수 있었다. This study has a introductory purpose to explore locality through place names of person. The reason for paying attention to palce names of person is that there is a high possibility of unexpected results such as the local historical events that were not well known, and the discovery of new people and forces of local. In this context, this study attempted to identify from the perspective of local history that the activities of the locals are reflected on the place names. Therefore, this research conducted a study on Gongju with strong historical specificity by selecting only the place names derived from people. As a result, 167 place names were identified in Gongju, and several significant circumstances could be identified. The geographical locations of the place names were concentrated in places adjacent to the Geumgang River, and the majority of the types were village names. According to the people-related place names analysis, the people who had the most place names in Gongju were the Wangs of Gaeseong, who fled to Gongju to avoid oppression in the late Goryeo Dynasty and early Joseon Dynasty. A total of 12 types of characters in the place names were identified, including civil and military officials of historical period, family name, and scholars. Among them, it can be seen that family name had the most influence on the origin of the place names. As a result of comprehensive review of the place names derived from people in Gongju, it was found that the activities of the characters and the place names had a certain connection, and traces of Gongju’s history and culture were also identified through the place names.

차량용 Electric Power Steering (EPS) ECU Radiated Immunity (RI) 성능 향상을 위한 PCB 개선

정진우(Jung, Jin-Woo),원우석(Won, Woo-Seok),최명진(Choi, Myoung-Jin),이두진(Lee, Doo-Jin),한상휘(Han, Sang-Whi) 대한전자공학회 2011 대한전자공학회 학술대회 Vol.2011 No.12

본 논문은 차량용 Electric Power steering ECU가 특정세기와 특정주파수의 Radar Pulse에 의하여 이상동작 및 오동작이 나타난 현상을 PCB를 변경하여 개선한 연구이다. Radar Pulse에 의하여 MCU 클럭 주파수에 노이즈가 인가되고, 클럭 주파수가 인가됨에 따라, MCU가 내부리셋이 주기적으로 발생하게 된다. 그러므로 노이즈를 차폐하기 위하여 PCB에서 접지면을 보강하였고, 늘어난 부유 커패시턴스 효과를 감소시키기 위하여 부성저항 매칭을 하고, 결과적으로 크리스탈 로드 커패시터를 8pF에서 5pF으로 감소시켰다.

Brain-Derived Neurotrophic Factor(BNDF) Val66Met 유전자 다형성과 성격 특성에 대한 연합연구

함병주,안희범,조수민,류성곤,최명진,이민수,최인근,Ham, Byung-Joo,An, Hwei-Beom,Cho, Su-Min,Ryu, Sung-Gon,Choi, Myoung-Jin,Lee, Min-Soo,Choi, Ihn-Geun 대한생물정신의학회 2005 생물정신의학 Vol.12 No.2

Background:Brain-derived neurotrophic factor(BDNF) genes are thought to be important factors in some personality traits. The goal of this study was to determine the role of these genes in personality traits. Method:The participants included 170 healthy adults with no history of psychiatric disorders and other physical illnesses for the last 6 months. All participants were tested by the Temperament and Character Inventory (TCI). BDNF Val64Met gene polymorphisms were analyzed with PCR(Polymerase Chain Reaction). Differences on TCI dimensions and sub-scales among groups were examined with ANOVA. Result:There was a significant correlation between BDNF Val64Met and Persistence(PS)(p=0.036) in female subjects, but none with the other TCI dimensions. A post-hoc comparison revealed significant a difference between Val/Val and Met/Met (p=0.031). Conclusion:Our study suggests that the BDNF Val64Met gene polymorphism is associated with persistence in Korean female subjects, but the small number of subjects limits generalization of our results. Further studies with a larger number of homogenous subjects are needed to confirm whether the BDNF gene is related to personality traits.

PC-HT 소재의 사출압력에 압력의존계수가 미치는 영향

박형필(Hyungpil Park),최명진(Myoung Jin Choi) 한국자동차공학회 2023 한국자동차공학회 학술대회 및 전시회 Vol.2023 No.11

Injection molding analysis uses the Cross-WLF viscosity model to predict injection pressure. However, the high heat-resistant PC-HT (Covestro: APEC 2097) material does not have the pressure dependence constant D3, which is one of the viscosity model coefficients. Therefore, there is a problem that the injection pressure is predicted to be lower than the actual result. In this study, we try to estimate the appropriate pressure dependence constant D3 of the Cross-WLF viscosity model in order to increase the accuracy of predicting the injection pressure of PC-HT material. We estimated the value of the pressuredependent constant by applying the concept of a free volume model to examine the cause of the decrease in fluidity and increase in injection pressure of PC-HT. In the injection molding analysis, it was confirmed that the difference between the actual and predicted injection pressure was very large when the D3 of the Cross-WLF viscosity model was not applied. The injection pressure applying the estimated pressure dependence constant was able to obtain the predicted result within about 10% of the actual result.

잠수함 무기체계 RAM 목표 값 설정 방식의 개선방안

정순욱(Sun-uk Jung),심행근(Hang-geun Shim),최명진(Myoung-jin Choi) 한국산학기술학회 2020 한국산학기술학회논문지 Vol.21 No.4

잠수함과 같은 대형 복합무기체계는 일반적인 무기체계의 램(RAM: Reliability, Availability, Maintainability) 목표 값 설정 방법을 적용 및 검증하는 것은 제한적이다. 잠수함은 소나체계, 무장체계 등 다수의 무기체계로 구성되어 있어 운용형태종합 및 임무(OMS: Operational Mode Summary/MP: Mission Profile)의 다양성, 장비의 복잡성 등의 특성을 갖는 복합무기체계이기 때문이다. 따라서 기존 무기체계의 개발사례 즉, 램 목표 값 설정 사례를 분석하고, 사례에 대한 문제점 및 제한사항을 도출하여 잠수함의 램 목표 값 설정 및 검증을 위한 개선방안을 제시하였다. 또한 잠수함은 다른 무기체계와는 달리 전 세계지역을 운용환경으로 하며, 서로 다른 운용조건 및 정비조건을 가진다. 이런 이유로, 잠수함의 램 목표 값은 구성하는 모든 구성품이 아닌, 임무 필수장비와 임무 중요장비를 중심으로 설정하고 검증해야 한다. 이에 본 연구는 잠수함건조 국방획득사업 추진시 잠수함의 체계 및 장비의 물리적인 성능요구와 더불어, 요구되는 성능 램 목표 값 설정에 대하여 검증하는 방법을 잠수함의 특성을 고려한 현실성 있는 방안을 제시하였다. In the case of large combined weapon systems, such as submarines, the application, and verification of methods of setting the reliability, availability, and maintainability (RAM) target values for conventional weapon systems are limited. Submarines are complex weapon systems with the characteristics of the diversity of operation mode summary and mission profiles (OMS/MP) as well as equipment complexity because they are composed of multiple weapon systems, such as sonar systems and armed systems. Therefore, this study analyzed the development cases of existing weapon systems, i.e., the RAM target value-setting cases, and derived the problems and limitations of the cases to present measures to improve the setting and verification of the ram target values of submarines. In addition, submarines operate around the world and have different operating and maintenance conditions. Therefore, a submarine"s ram target values should be set and verified centering on the mission essential equipment and mission critical equipment, instead of all components that constitute weapon systems. This study examined a method to verify the required performance RAM target-value setting, considering the characteristics of submarines as well as the physical performance requirements for the systems and equipment of submarines that must be considered when implementing national defense acquisition projects for submarines.

Virtual lab 을 이용한 자동차용 혼 설계 및 진동해석

이상권(Sang-Kwon Lee),이인석(In-Seok Lee),최명진(Myoung-Jin Choi),배인식(In-Sik Bae) 한국소음진동공학회 2015 한국소음진동공학회 학술대회논문집 Vol.2015 No.10

투기, 구기, 라켓경기 선수의 피하지방 두께와 근질량 비교분석

최명진,안세옥 경희대학교 사회체육연구소 1996 體育科學論叢 Vol.- No.9

The purpose of this study was to discriminate the characteristics of muscle mass and skinfold thickness in made cdlesiate athletes 120 athletes from three parts of sport events who were 20∼22 years old (mean 21 age years). with ape of 21 years ANOVA. swbjects were 120 1. The maximal upper arm girth means corrected for the tricep skinfold thickness were ranged from 26.05 for the taekwondo to 31.41 for the judo. Judo was one of the greatest maximal upper arm girth means corrected for the tricep skinfold thickness in all sports (rugby, table tennis, handball, badminton, taekwondo). By scheffe test, judo and rugby is different from other sports. 2. The maximal forearm girth means were ranged from 26.13 for the taekwondo to 29.28 for the judo. Judo was one of the greatest maximal forearm arm girth means corrected for the tricep skinfold thickness in all sports (rugby, table tennis, handball, badminton, taekwondo). By scheffe test, rugby was different from taekwondo, Judo was different from taekwondo, handball, badminton, table tennis. 3. The mid thigh girth means corrected for the front thigh skinfold thickness were ranged from 50.75 for the table tennis to 57.09 for the rugby. Rugby was one of the greatest maximal mid thigh girth means corrected for the tricep skinfold thickness in all sports (rugby, table tennis, handball, badminton, taekwondo). By scheffe test, judo was different from table tennis. Rugby was different from taekwondo, handball, badminton, table tennis. 4. The maximal calf girth means corrected for the calf skinfold thickness were ranged from 34.69 for the Table tennis to 39.61 for the rugby, Rugby was one of the greatest maximal calf girth means corrected for the tricep skinfold thickness in all sports (rugby, table tennis, handball, badminton, taekwondo). By scheffe test, rugby was different from badminton. judo different from taekwondo, handball, badminton, table tennis. 5. The muscle mass were ranged from 41.88 for the table tennis to 53.07 for the rugby. Rugby had significantly greater muscle mass than other sports (judo, handball, taekwondo, badminton, table tennis). By scheffe test, rugby was different from taekwondo and judo was different from other sports (handball, taekwondo, badminton, table tennis). 6. The percentage of body mass was ranged from 61.29 for the Judo to 64.34 or the handball. Handball had significantly greater a percentage of body mass than other sports (badminton, taekwondo, rugby, table tennis, judo). By scheffe test, fudo is only different from handball. 7. The sum of skinfold thickness was ranged from 24.9mm for the taekwondo to 36.9mm for the judo. Judo had significantly greater the sum of skinfold thickness than other sports (rugby, badminton, table tennis, handball, taekwondo). By scheffe test, Judo is different from taekwondo and handball.