자원 제약을 고려한 제안 프로젝트 포트폴리오 문제의 휴리스틱 기법

조윤재(Cho, Yoon Jae),백인섭(Paek, In Soub),김종출(Kim, Jong Chool),안태호(Ahn, Tae Ho) 한국서비스경영학회 2021 서비스경영학회지 Vol.22 No.1

With regards to the various project to establish information system in the Korean software market, a company intending to win such project considers comprehensively the business detail, expected profits, and probability to win within available resources and comes to determine if to make an offer. Such judgement is one of the most important decision making affecting the overall business management like sales and revenue. Therefore, when the proposed project portfolio is defined as the composition of the project decided to be offered among the ordered projects, Cho, Yoon-Jae(2020) suggests a mathematical model of the problem of maximizing the sum of expected values in constituting the proposed project portfolio and an optimal solution accordingly. This paper assumes the concept of a project mode to be following: 1) the resources are limited, 2) a linear progression of the probability of the orders to be awarded as the duration of each activity increases, 3) the nature of the proposed project is reflected. Unlike previous studies, this research proposes a heuristic technique as a solution to the composition of the proposed project portfolio. The simulation in this study verifies the effectiveness and efficiency of the proposed algorithm as well.

코골이 및 폐쇄성 수면무호흡증에서 Laser-assisted Uvulopalatoplasty와 LaserUvulopalatopharyngoplasty의 치료 성적 : 장기추적관찰후 환자 만족도 조사

김재호,이윤식,박형욱,송용진,남순열,김용재,이봉재 대한이비인후과학회 2000 대한이비인후과학회지 두경부외과학 Vol.43 No.2

Correlation Between Primary Si and Silicide Refinement Induced by Ultrasonic Treatment of Multicomponent Al–Si Alloy Containing Ti, Zr, V, and P

Jae‑Gil Jung,Young‑Hee Cho,Tae‑Young Ahn,Jae‑Hee Yoon,Sang‑Hwa Lee,Jung‑Moo Lee 대한금속·재료학회 2019 METALS AND MATERIALS International Vol.25 No.5

The correlation between primary Si and silicide refinement induced by ultrasonic treatment (UST) of multicomponent Al–Sialloy containing Ti, Zr, V, and P was investigated. UST significantly refined the primary Si phase owing to cavitation-inducedwetting and deagglomeration of MgAl2O4particles. Lowering the UST finish temperature caused deterioration of the degreeof primary Si refinement, instead leading to silicide refinement. Cavitation-induced silicide nucleation on wetted MgAl2O4consumed the MgAl2O4particles, particularly in the case of primary Si nucleation. Similarly, the formation of an AlP phaseon the silicide phase reduced the nucleation efficiency of the AlP phase. Poisoning of the MgAl2O4and AlP phases by thesilicide phase was responsible for the deterioration in primary Si refinement. Room-temperature tensile strength and hightemperatureelongation were increased by UST and were dependent on the size of primary Si.

Ganglioside GM1 influences the proliferation rate of mouse induced pluripotent stem cells

( Jae-sung Ryu ),( Kyu-tae Chang ),( Ju-taek Lee ),( Malg-um Lim ),( Hyun-ki Min ),( Yoon-ju Na ),( Su-bin Lee ),( Gislain Moussavou ),( Sun-uk Kim ),( Ji-su Kim ),( Kinarm Ko ),( Kisung Ko ),( Kyung- 생화학분자생물학회 2017 BMB Reports Vol.50 No.6

The ACKNOWLEDGEMENTS should be corrected as follows, This research was supported by a grant (Code# PJ0074922012) from the Korean Rural Development Administration, and has been supported by the Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education Science and Technology (2010-0022316 and KCG5401011), and the KRIBB/KRCF Research Initiative Program (NAP), Korea. The published article in this journal was a part of the 2013 Doctoral thesis of Jae-Sung Ryu submitted to Wonkwang University, Korea. and not This research was supported by a grant (Code# PJ0074922012) from the Korean Rural Development Administration, and has been supported by the Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education Science and Technology (2010-0022316 and KCG5401011), and the KRIBB/KRCF Research Initiative Program (NAP), Korea.

The Case Study of Yoon's Shoe Manufacturing Co. under Condor Database Management System : 中小신발 생산업체를 中心으로

YOON,JAE-HONG 東亞大學校 經營問題硏究所 1986 經營論叢 Vol.9 No.-

데이터 베이스 管理 시스템을 실제 經濟活動에 이용함으로서 관리의 효율성이 증대되고 있다. 이를 이용함으로서 조직통제 및 데이터의 효율적 이용에 기여 할 수 있기 때문이다. 본 논문은 中小신발 생산업체에서 주문, 생산계획, 原資材 在庫統制, 원자재 구매, 생산 및 선적에 이르는 여러 가지 經濟活動에서 데이터 베이스 관리 시스템을 이용함으로써 업무의 효율화를 꾀할 수 있다는 실제 사례를 中心으로 살펴보고 데이터 베이스 관리 시스템의 정확한 시행이 성공의 중요한 변수가 된다는 것을 알아보고자 한다. 먼저 시스템의 절차는 주문, 생산계획, 원자재 재고통제, 원자재 구매, 생산 및 선적으로 구성되고 데이터 요소는 소비자(CUSTOMER), 原資材(MAETRIAL), 供給者(SUPPLIER)로 구성된다. 이러한 中小신발 생산업체의 경영활동을 콘돌(Condor) 데이터 베이스 관리 시스템(DBMS)으로 시행하면 첫째 주문에 관한 처리를 해야하고, 둘째 原資材 在庫 통제는 재주문점과 최고 주문량을 기준으로 하여 재주문점 밑으로 재고가 소진될 때 최고 주문량까지 주문할 수 있다. 셋째 원자재 구매에서는 공급자(SUPPLIER) 데이터를 이용한다. 넷째, 선적 및 외상 매출금, 매입금 관리에서는 선적 날짜에 맞게 날짜 별로 구분하여 선적하고 公式을 이용하여 외상매출금, 매입금을 월말에 계산하게 되는데 데이터 베이스 관리 시스템으로 쉽게 계산할 수 있다. 결론적으로 월말에 세 데이터 요소의 모든 부문을 채워넣게 되고 정보의 변화에 따라 새롭게 정보를 집어 넣거나 변경할 수 있다. 이상에서 본 바와 같이 데이터 베이스 관리 시스템의 올바른 설계와 올바른 시행이야말로 경영활동에서 이를 이용하는 성패의 관건이 된다는 것을 알 수 있다.

외상후 발작의 위험인자에 대한 조사

이재학,배학근,윤석만,도재원,이경석,윤일규,최순관,변박장 순천향의학연구소 2001 Journal of Soonchunhyang Medical Science Vol.7 No.1

Risk Factors for Posttraumatic Seizure The authors evaluate the risk factors for posttraumatic seizures. this prospective study was performed in a series of 470 head injured patient from January 1996 to Decomber 1998. The patients who were dead within 1 week of injury or children from 3 years old and under were excluded. There were 358 male and 112 female with a mean age of 35.2±22.8 years (range, 4-88 years). The results were as follows : 1). Of the 470 patients, pasttraumatic seizure occurred in 48 patients(10.2%): early seizure in 28(6%) and late seizure in 20 patients(4.2%). 2). The clinical risk factors for posttraumatic seizure were poor consciousness at admission, presence of brainstem herniation signs, poor GCS score, and posttraumatic amnesia more than 24 hours after trauma(p<0.001). 3). The radiological risk factors for posttraumatic seizure were subdural hematoma(p<0.001), intracerebral hematoma (p<0.02), mutiple intracranial CT lesions(p<0.001), or delayed lesions on follow-up CT scans(p<0.001). the incidence of seizure increased according to the severity of diffuse brain lesion(p<0.001), and the seizure rate in mass lesion was higher than that in diffuse lesion(p<0.001). 5). Hypoxia and coagulopathy had a statistically significant influence on posttraumatic seizure(p<0.05). Hypoxia had a infuence on occurrence of late seizure(p<0.05). 6). The incidence of posttraumatic seizure signiticantly increased in surgical group compared with coservative group(p<0.001) and significantly increased in patient who underwent decompressive craniectomy compared with those who underwent craniotomy(p<0.001) 7). Preventive administration of antiepileptic drugs decreased the incidence of early seizure, but did not affect on the reduction of late seizure. 8). Multivariate logistic regression analysis showed the subdural hematoma, GCS score, delayed lesion, and intracerebral hematoma in order of importance for seizure risk. in conclusion, the risk factors affecting on the occurrence of seizure were clinical status at admission, CT lesions, and severity of diffuse brain inJury. Considering that hypoxia affected on the late seizure, it is necessary to detect and treat it immediately after trauma. In addition, the patients who underwent decompressive craniectomy should be carefully followed to evaluate the risk of late seizure. Even though preventive administration of antiepileptic drugs had a tendency to decrease the incidence of early seizure, it is unclear whether administration of antiepileptic drugs can reduce the incidence of posttraumatic seizures. Prospective study will be needed in the selected patients.

급성전골수성백혈병에서 백혈구성분채집술에 이은 치명적인 뇌출혈 2예

오윤정,박소윤,김윤정,한동석,김현수,최진혁,남동기,임호영,김효철,주희재 아주대학교 의과학연구소 1998 아주의학 Vol.3 No.1

The aim of this study is to report 2 cases of acute promyelocytic leukemia who died from intracranial hemorrhage following leukapheresis and to provide proper preventive measures against hemorrhage following leukapheresis. From 1994 to 1997, a total of twenty-six patients with leukemia underwent leukapheresis to control hyperleukocytosis at Ajou University Hospital. Two patients with acute promyelocytic leukemia received all-trans retinoic acid but developed drug-induced hyperleukocytosis. Shortly after leukapheresis, they died from intracranial hemorrhage. The risk factors for fatal hemorrhage are thought to be coexisting disseminated intravascular coagulation(DIC), thrombocytopenia aggravated by leukapheresis, exacerbated coagulopathy related to mechanical trauma through leukapheresis and the excess use of citrate during leukapheresis. To reduce the risk of the bleeding associated with leukapheresis, it is necessary to replace platelet sufficiently before and after leukapheresis and to give calcium to correct coagulopathy induced by excess citrate which is used as anticoagulant as well as the correction of disseminated intravascular coagulation.

서울의 Penicillinase Producing Neisseria gonorrhoeae 발생빈도(1998)

김재홍,김준호,반재용,이정우,황성주,정준규,정성태,강진문,조흔정,홍창의,정혜신,이한승,김이선,이봉길,이종호,선영우,한기덕,윤성필,이성훈,안종성,박석범,문승현,조항래,김형섭,류지호,황재영,박준홍,손상욱 한양대학교 의과대학 2001 한양의대 학술지 Vol.21 No.1

In recent years, gonorrhea has been pandemic and remains one of the most common STDs in the world, especially in developing countries. For the detection of a more effective therapeutic regimen and assessing the prevalence of Penicillinase Producing Neisseria gonorrhoeae(PPNG), we have been trying to study the patients who have visited the Venereal Disease Clinic of Choong-Ku Public Health Center in Seoul since 1980 by menas of the chromogenic cephalosporin method. In 1998, 93 strians of N. genorrhoeae were isolated, among which 60(64.5%) were PPNG. The prevalence of PPNG in Seoul, which had been decreased to 39% in 1996 after a peak of 74.3% in 1993, is increased to 64.5% in 1998.

유휴 산업시설을 활용한 국내 전시관의 재생사례 연구

김인호 ( In Ho Kim ),윤재은(교신저자,교수) ( Jae Eun Yoon ) 한국공간디자인학회 2016 한국공간디자인학회논문집 Vol.11 No.3

(Background and Purpose) The reason why industrial structure is changing, arrived so many idle industrial facilities were created. This social phenomena makes to use idle industrial facilities as the Museum or cultural space. And then this kinds of idle industrial facilities can carry over Urban Renaissance and regional economic vitalization. Nowadays, South Korea also Recovery and change idle industrial facilities to play actively, besides, already many cases of culture spaces used to idle industrial facilities in Korea. Therefore, in this research, through the national pavilion of the case analysis utilizing idle industrial facilities, examine the necessary components in order to take advantage of the idle industrial facilities, there is a purpose to prepare the future of basic data. (Method) In this study, we consider the theory of value as a concept and characteristics and cultural space for the idle industrial facilities of playback. Before analyze Korean cases, we’d analyze international cases to got four categories, that is identity, conservativeness, society, environment. also we’d extract the keyword from previous research about the idle industrial facilities of playback. That keyword is historicity, symbolism, conservation structures, preservation material, community attribute, connectivity, placeless. We’ve use that analyzed four categories and eight keyword, to analyze South Korea’s cases. This chose areas are systematically related to municipality or renovated space. The identity-clear place that has regional characteristics also can be a chosen case areas. The chosen case areas are space that is valued as a subject of analysis. These five case areas Jeongseon Samtanartmine, Yoon-dong-ju literary house, Kim-jung-up museum, Gwangmyeong epicycle art center, Incheon art platform will be researched. Now, we begin to analyze gallery characteristics with 8 keyword that broken down from precede thesis’ four classifications. (Result) Through the study, we can know that Samtanartmine has the best condition of identity and preservation. Yoon-dong-ju literary house have a good balance except preservation of materials. Kim-jung-up museum have social and environmental factors intensively. Gwangmyeong upicycle art center have good at social connectivity and community attribute, Incheon Art platform have high quality at social connectivity and environment. (Conclusion) Therefore, in this study, in the exhibition hall of idle industrial facilities have been utilized, identity, are related to each other and the field of preservation, the environment, that there is a close relationship that gives society in the field and each other to the impact It was analyzed. In the highly conserved Exhibition Hall, the historic property itself has been used as an element of the exhibition. These elements constitute a strong identity of exhibition hall, by which, onlookers can know the history a symbol of previously used space, it was found that forming the identity constituting the pavilion . Also, ease of social cooperation with geographic access local governments has been found to result in activation of the region. This was found to be the basis for urban regeneration.

저서성 (低棲性) 대형무척추동물에 의한 생물학적 수질평가 연구 (3) - 육안적 간이수질평가방법을 중심으로 -

윤일병,공동수,유재근 ( Il Byong Yoon,Dong Soo Kong,Jae Keun Ryu ) 한국환경생물학회 1992 환경생물 : 환경생물학회지 Vol.10 No.2

In this present paper, simple water quality evaluation method using Korean benthic macroinvertebrate 29 systematic groups was proposed from data matrix investigated by authors etc. at 613 sampling units in Korean streams and lakes since 1971. The evaluation of water quality criteria by this method showed identity of 63% in 378 sampling to chemical evaluation. Also we proposed the quantitative index named Yoon-Kong`s GPI (Group pollution index) and this index showed correlation coefficient over 0.9 to Pantle-Buck`s saprobic index S and Yoon-Kong`s Total Biotic Score, TBS.