A Progressive Dynamic Programming Algorithm for Decision CPM

이강인 大田工業大學 1989 한밭대학교 논문집 Vol.6 No.2

The objective of this study is to design a Dynamic Programming alogrithm to solve DCPM(Decision Critical Path Method) network with decision sets and due date. DCPM can be applied to the problems having a discrete time-cost trade-off, and including the possibility of interdependency constraints between the descrete job alternatives. Thus, if there are a number of competing methods in performing the some job, which has different cost, different time, and different technological interdependencies, all of the competing methods can be included in the DCPM network. The algorithm proposed in this study first consider the effects of the alternative methods of performing the job in cost aspect to complete the project, and then select the optimal job-set of DCPM network by using the progressive Dynamic Programming algorithm according to due date.

고려 충선왕대의 관직운용 양상 연구 - 충렬왕대와의 비교 검토 -

이강한(李康漢) 한국역사연구회 2019 역사와 현실 Vol.- No.113

Both Kings Chung’ryeol and Chungseon had Jaeshin and Miljik dignitaries man posts inside the traditional Six “Bu” Ministries(“Yukbu”), the “Eosadae” Monitor office and the “Samsa” office (in charge of financial spending). By having them assume those posts in a specific manner, they tried to run their governments in their own ways. But there were some problems in king Chung’ryeol’s way of linking individual offices with either Jaeshin or Miljik figures. And king Chungseon apparently wanted to fix some of those problems, as he positioned human resources in a fashion different from his own father’s. King Chungseon wanted to expand the group of Jaeshin figures who were allowed to man high-ranking Six ministerial posts (the Advisory “Pansa” post and the Resident “Sangseo” post), from only the first and second Jaeshin figures (as it had been during king Chung’ryeol’s days) to middle and even junior ones, while also broadening the range of Miljik figures from junior and mid-level ones to high-ranking senior ones. This move on Chungseon’s part allowed both the Jaeshin and Miljik figures to increase their influence in the operations of the ‘Bu’ Ministries, but at the same time the Ministries as well were able to reinforce their status and voice in dynastic governing, with [more diverse] Jaeshin figures and [more high-ranking] Miljik figures newly helming the ministries. In the meantime, Chungseon decided not to allow Jaeshin figures to man either the advisory Chief Monitor(Eosadae [called ‘Gamchalsa’ these days] Pansa) seat [except the First Jaeshin] or the resident Head Monitor(Gamchal Daebu) seat, and refrained from appointing junior Miljik figures to the Gamchal Daebu (which was also called Daesaheon some times) seat as well, with the intention of further ensuring autonomous control of the Eosadae (named Saheonbu at the time) office itself. While doing so, he still allowed higher level of Miljik figures to assume the post of resident Head Monitor(Eosa Daebu/Daesaheon), in order to maintain necessary amount of power and influence required by the office to do its original job, monitoring and prosecuting. And in running the Samsa office, Chungseon had both mid-level Jaeshin and Miljik figures to man the resident Head commissioner(Samsa-sa) seat in several occasions. Evidently, he must have reasoned that in the appointment of seats in that office, alternating between Jaeshin and Miljik figures would enable both of them to place their counterparts in check, and prevent the other party from wielding too much power, in deliberations concerning financial spending. All these agendas featured in king Chungseon’s positioning of human resources inside the Goryeo government may have caused inconveniences, discomfort and even dissension among governmental officials. And that may have had something to do with the negative portrayal of king Chungseon’s political governance in Goryeo-sa and other records.

노이즈 소스를 이용한 레이더 시스템 분석용 M&S Tool

이강인,양훈기,이원우,배경빈,정용식 한국ITS학회 2011 한국ITS학회 학술대회 Vol.2011 No.2

녹색기술로 미래자원 확보하자

이강인,Lee, Gang-In 한국자원재생재활용연합회 2004 재활용회보 Vol.2 No.-

IoT 프로젝트를 적용한 마샬안정도시험기 기초연구

이강인,이강빈,최준성 한국도로학회 2020 한국도로학회 학술대회 발표논문 초록집 Vol.2020 No.09

반복적 의사 결정에서 위험선호성향의 변화

이강인,정지안,김영겸,조성구 한국경영과학회 1993 韓國經營科學會誌 Vol.18 No.3

It is not rare to observe that a decision-maker frequently changes his choice strategy in the repetitive gamble choice situation. This change in risk preference attitude, however, is not well explained with the existing gamble choice models, such as Bell's disappointment-elation model which is an interesting extension of the classical MEU model. This paper shows that this change in risk preference attitude should be interpreted as a systematic transition of "d" and "e", the disappointment and elation constants of Bell's model respectively. A laboratory experiment is also performed to identify the factors which greatly affect the decision-makers' risk preference attitude change. The number of consecutive successes / failures and the amount of remaining capital found to be statistically significant factors.

TPS 적용 사례 분석과 효율적인 활용 연구

이강인,정재익,한석만 한국생산성학회 2005 하계학술대회 Vol.1 No.-

다이오드 여기 소형 Nd:YVO4 레이저에서 Cr:YAG 포화 흡수체와 레이저 결정 사이의 거리에 따른 출력 변화 연구

이강인,김영중,황성기,권진혁,이종훈,안승인,여환섭 한국물리학회 2009 새물리 Vol.58 No.2

A passively Q-switched, diode-end-pumped Nd:YVO4 laser was developed. A Cr:YAG crystal was used as a saturable absorber. The pulse duration and the pulse repetition rate were measured as functions of the distance between the Nd:YVO4 and the Cr:YAG. Also, the thermal lens effect could be estimated from the measurement of the output power as a function of the Nd:YVO4 laser's cavity length. Cr:YAG 결정을 수동형 Q-switch의 포화 흡수체로 사용하는 다이오드 레이저 (출력 = 1 W) 여기 Nd:YVO4 레이저를 제작하였다. 레이저 이득 매질 및 포화 흡수체의 온도를 열전 냉각기 (ThermoElectric cooler)를 사용하여 안정화 시켰다. Nd:YVO4와 Cr:YAG 결정 사이의 간격을 조정해 가며, 펄스 지속 시간폭과 펄스 반복률의 변화를 관측하였다. 또한 공진기 길이를 달리하며, Nd:YVO4의 출력을 측정하여 다이오드 여기 빔에 의한 열렌즈 거리를 간접적으로 추정하였다.

엔트로피 척도를 이용한 MADM 문제의 선호대안 선정

이강인 한국산업경영시스템학회 2003 한국산업경영시스템학회지 Vol.26 No.2

The purpose of this paper is to propose a method for selecting the preferred alternatives of multiple Attribute Deeision-Making(MADM) problem using the Entropy measure. A decision-maker who wants to estimate exactly the weight to be applied to her/his MADM problem is usually confronted with the embarrassing situation where, although there exist a variety of weighting methods, it is hard to find a right procedure to choose a pertinent value. To remedy this uncomfortable situation, the Entropy measure commonly used in information theory, is proposed as a tool that can be used by decision-makers to more efficiently select the preferred alternatives. As a result, the method proposed in the paper can be significant in that relatively easy to understand by decision-makers.

품질비용 산정에 의한 지속적 개선 방법 사례연구

이강인,한석만 한국산업경영시스템학회 2005 한국산업경영시스템학회 학술대회 Vol.2005 No.춘계

Recently many organization to become survival in changing marketplace, they must commit to implementing tools, systems, and quality management techniques. In this paper we develop process method of Team"s problem-solving to reduce in failure costs. This paper suggest the step process how to measure quality cost reasonably that works in all types organizations. Or what is continuous improvement? Continuous improvement can be described as the continuous reduction of variation. Variation has many sources (machines, methods, materials, measurements, people, and environments) and cause (special & common in organization). As quality cost are not the answer to every organization financial, or quality-related problem, Its real results are designing & implementing quality cost system might be the answer.