군집 별 표준곡선 매개변수를 이용한 치밀오일 생산성 예측 순환신경망 모델

한동권(Dong-kwon Han),김민수(Min-soo Kim),권순일(Sun-il Kwon) 한국정보통신학회 2021 한국정보통신학회 종합학술대회 논문집 Vol.25 No.2

치밀오일 미래 생산성 예측은 잔류오일 회수량 및 저류층 거동 분석을 위해 중요한 작업이다. 일반적으로 석유공학적 관점에서 감퇴곡선법을 이용하여 생산성 예측이 이루어지는데, 최근에는 데이터기반의 머신러닝 기법을 이용한 연구도 수행되고 있다. 본 연구에서는 딥러닝 기반 순환신경망과 LSTM, GRU 알고리즘을 이용하여 미래 생산량 예측을 위한 효과적인 모델을 제안하고자 한다. 입력변수로는 치밀오일 생산 시 산출되는 오일, 가스, 물과 이와 더불어 다양한 군집분석을 통해 산출된 표준곡선이 주요 매개변수이고, 출력변수는 월별 오일 생산량이다. 기존의 경험적 모델인 감퇴곡선법과 순환신경망 모델들을 비교하였으며, 모델의 예측성능을 향상시키기 위해 하이퍼파라미터 튜닝을 통해 최적 모델을 도출하였다. Predicting future productivity of tight oil is an important task for analyzing residual oil recovery and reservoir behavior. In general, productivity prediction is made using the decline curve analysis(DCA). In this study, we intend to propose an effective model for predicting future production using deep learning-based recurrent neural networks(RNN). LSTM, and GRU algorithms. As input variables, the main parameters are oil, gas, water, which are calculated during the production of tight oil, and the type curve calculated through various cluster analyzes. the output variable is the monthly oil production. Existing empirical models, the DCA and RNN models, were compared, and an optimal model was derived through hyperparameter tuning to improve the predictive performance of the model.

주의력결핍/과다활동장애(ADHD)아동에서 사회기술훈련

한은선,안동현,이양희 대한소아청소년정신의학회 2001 소아청소년정신의학 Vol.12 No.1

목적 : 주의력결핍/과다활동장애(ADHD) 아동들은 또래관계를 영위하는데 필요한 것을 포함한 다양한 사회기술에 결함을 보인다. 이들의 치료에 약물치료를 포함한 부모훈련, 교육적 접근 등이 필요하지만 이와 함께 이들에 대한 사회기술훈련이 시도되고 있다. 이들에게서 사회기술훈련을 적용하여 그 효과를 검증해보고자 한다. 방법 : ADHD로 진단 받은 초등학교 아동 5명과 그들의 부모 5명을 대상으로 Pfiffner와 McBurnett이 제안한 프로그램을 중심으로 총 8회기의 프로그램을 수행하고, 사회기술, 문제행동, 또래의 사회적 수용도, 양육태도 및 양육스트레스, 프로그램 만족도를 비교해 보았다. 결과 : 교사와 부모가 평가한 내용이 다소 달랐는데, 교사는 사회기술과 또래의 사회적 수용도에서, 부모는 문제행동의 감소에서 유의미한 호전을 보고하였다. 부모들은 양육태도에서는 별 변화가 없었지만 양육스트레스에서는 현저한 감소를 보고하였으며, 프로그램 만족도는 상당히 높았다. 결론 : ADHD 아동에서 사회기술훈련은 최근에, 주로 보조적이거나 매우 제한적으로 시행되고 있다. 하지만 상당히 많은 아동들이 사회기술의 결함을 호소하고 있기 때문에 이들이 통합적 접근에서 이들의 치료 프로그램에 포함되어 시행하는 것이 바람직하겠다. 중심단어 : 주의력결핍/과다활동장애ㆍ사회기술훈련ㆍ일반화. Objectives : The children with ADHD have some deficits in social skills including the peer relationship. There are several approaches to teaching social skills to children with ADHD, and many are combined in comprehensive programs to maximize treatment effects. We conducted this study to explore the direct effects of social skills training program applied to children with ADHD. Method : Five children and their mothers who were diagnosed to Attention Deficit-Hyperactivity Disorder (ADHD) in Y elementary school survey participated to the study. We performed the 8- session program with the modified the Pfiffner and McBurnett's program(1997), and assessed the social skills, problem behaviors, peer acceptance, parenting behaviors, and parenting stress. Results : Parent's reports were some different from teacher's reports ; teacher reported improvement in social skills and peer acceptance, but parent notified decrement in problem behaviors. And also, there were no changes in maternal behaviors, but significant reducing effects in parenting stress. Conclusion : The stimulants are mainstream in treatment of children with ADHD. The social skills training programs are combined in comprehensive treatment programs in children with ADHD to maximize treatment effects. KEY WORDS : ADHD ㆍ Social skill training ㆍ Generalization.

영일만에 출현하는 부유성 난과 자치어의 종조성 및 계절변화

한경호,홍지선,김영섭,전경암,김영숙,홍병규,황동식 한국어류학회 2003 韓國魚類學會誌 Vol.15 No.2

경상북도 영일만 연안에서 2001년 2월, 5월, 8월 및 11월에 계절별로 채집된 부유성 난과 자치어의 종조성 및 계절변화를 연구하였다. 채집된 부유성 난은 총 9개 분류군으로, 멸치가 출현량의 63.4%로 가장 우점하였고, 다음 까나리는 23.7%를 차지하였으며, 나머지는 7개 분류군이 12.9%를 차지하였다. 자치어는 총 7목 28과 37개의 분류군이 출현하였는데, 그 중 32개 분류군은 종 수준까지, 3개 분류군은 속 수준까지, 2개 분류군은 과 수준까지 동정하였다. 2월에는 2목 7과 12종, 5월에는 3목 5과 7종, 8월에는 6목 18과 21종, 11월에는 6목 14과 16종이 출현하였다. 주요 출현종으로서는 까나리가 자치어 출현량의 22.7%를 차지하여 가장 우점하였으며, 다음은 멸치가 16.7%, 동갈양태속 어류가 14.1%를 차지하였고, 노래미와 쥐노래미가 각각 5.7%와 5.5를 차지하였다. The ichthyoplanktons in coastal waters of Yongil Bay were sampled during four different months (February, May, August and November 2001) to study their distribution. The collected fish eggs were identified as belonging to nine species. The most dominant species Engraulis japonicus accounted for 63.4% of the total fish eggs, followed by Ammodytes personatus (23.7%) and Sardinops melanostictus (9.2%). The collected larvae and juveniles were identified into 37 taxa (28 families, 7 orders). Of these, 32 were identified to species, three were identified to genus and two were identified to family level. The dominant species Ammodytes personatus accounted for 22.7% of the total larvae and juveniles, followed by Engraulis japonicus (16.7%), and Repomucenus sp. (14.1%). These three taxa constituted 53.5% of the total collected larvae and juveniles.

Dong-Chun Lecture : Cell-based High Content Screening (HCS) for action modes of drug targets by using systematic deletion mutants of Schizosaccharomyces pombe

( Dong Uk Kim ),( Im Seon Woo ),( Mi Sun Won ),( Young Joo Jang ),( Kyung Sook Chung ),( Han Oh Park ),( Hyang Sook Yoo ),( Kwang Lae Hoe ),( Doo Sik Kim ) 한국생화학분자생물학회 (구 한국생화학회) 2005 생화학분자생물학회 춘계학술발표논문집 Vol.2005 No.-

저농도 에틸렌옥사이드에 폭로된 중앙공급십 근무자들의 건강형태 및 작업환경에 관한 연구

한문선,김재권,이동근 圓光大學校 醫科學硏究所 1999 圓光醫科學 Vol.15 No.2

Background: Hospital employees are exposed to various hazards, and turn out neglecting to health problems caused by these hazardous factors, so it is necessary to measuring hospital working environment. Methods: This study was performed to evaluate the possible effects on health following exposure to low levels of ethylene oxide in central supply sterilizing room workers. Questionnaires, measuring the volume of ethylene oxide exposure, hematologic and urinary examination were performed and the obtained results were as follows : Results: 1. Four(l7.4%) workers answered as "very serious" and 9(39.1%) answered as "serious" to the survey about the understanding the effect on the individual health when they use ethylene oxide, 9(39.1%) replied as "Yes" and 14(60.0%) replied as "No" about the question if they get the regular education, 19(82.6%) agreed to the necessity of measureing the working environment. It was found that 6(26.1%) wear the protector and 17(73.9%) do not wear the protector during their work. 2. The exposure concentration of ethylene oxide in the central supply sterilizing room was measured as follow : Average 0.076 ppm for the individual exposure, average 0.106 ppm for the main operating room, and average 0.088 ppm for the side operating room. 3. As the result of the hematologic examination, the average rate of each part except for the number of leucocytes was included in the normal category. There was a significant statistical difference in the number of leucocytes between the exposed group and the control group(p<(0.05). 4. The exposed group was divided 2 groups according to their working period as over 12 year group and under 12 year group. Although the average rate of each part was analyzed as normal, the number of leucocytes showed a significant statistical difference between the two groups(p<0.05). 5. There was no significant statistical difference between the exposed group and the control group in the urine protein test. Conclusions: Tlt is considered that they need the measuring equipment and the constant measuring management of the working environment. Furthermore, regular safety education for the preventive plans for the health troubles and keeping the rule of earing the protector during their work are recommended.

大氣汚染物質의 變異原性에 關한 硏究 : 마우스 母體 및 胎仔의 小核試驗을 中心으로

韓東宣,車喆煥,張聖薰,裵思相 고려대학교 의과대학 1989 고려대 의대 잡지 Vol.26 No.3

This Study aimed at identifying the cytogenic effect of air pollutants in pregnant mouse and her fetus. Samples of air pollutants were collected by the high volume air sampler in several sites of Seoul from May through December in 1988. Total suspended particulates (TSP) were measured and those of benzene and methanol were extracted and dissolved in dimethyl sulfoxied (DMSO). Those were injected into peritoneal cavity by the concentration and the micronucleated polychromatic erythrocyte (MNPCE) was observed in the bone marrow of mother mice. IN addition, the liver of fetus was extracted and MNPCE was observed. Transplacental genetic toxicity due to air pollutants in both cases was measured in the end. 1. In case of the tar concentration equivalent to those residing in the volume of 100m³ of air, the MNPCEs in the mother's bone marrow were 0.57±0.15% and 0.70±.20% in Shinchon; 0.27±0.17% and 0.40±0.13 In Jungrung and in the underground shopping center ; 0.33±0.10% and 0.55±0.13% in the subway station. The MNPCEs measured in the sample of the tunnels, of which tar concentration was equivalent to that in 50m³ and 100m³ of air, were 0.86±0.24% and 1.06±0.17% in tunnel A and 0.70±0.15% and 0.96±0.23% in tunnel B; those were the highest MNPCE in the samples of mother mice. 2. The MNPCEs measured in the liver of featus were 0.60±0.25% and 0.80±0.15% in Shinchon. In Jungrung and the underground shopping center, the MNPCEs in the liver of fetus were the same as those in mothers. In the sample of the subway station, the MNPCEs in the liver of fetus, 0.73±0.20%, were higher than in mothers only in the 200? tar concentration. The MNPCEs in the 50m³ and 100m³ tar concentration were 0.87±0.10% and 1.27±0.27% in tunnel A, and 0.68±0.41% and 1.07±0.23% in tunnel B. It showed that the MNPCEs only in the 100m³ tar concentration were higher than those in mothers.

악성 위궤양의 형태를 보인 원발성 위결핵 1예

한종대,이동욱,심성준,류운석,안현택,박찬욱,김배영,이미선 大韓消化器內視鏡學會 1999 Clinical Endoscopy Vol.19 No.부록2

기저귀 사용실태와 피부자극도 조사 : Cost, Environment, and Skin Irritability

한정석,김동건,신현숙,정예리,정태석,채선미 한국모자보건학회 2000 한국모자보건학회지 Vol.4 No.1

수막종의 Flow Cytometry 및 Nucleolar Organizer Regions(NORs)에 관한 비교연구

韓東錫,蔡暘錫,金仁仙,白承龍 고려대학교 의과대학 1990 고려대 의대 잡지 Vol.27 No.1

The flow cytometric DNA analysis and the Ag-NORs staining method have been reported to reflect the cellular activities and the proliferative rates of the normal and the neoplastic cells. Currently, these methods have attracted many interests from clinical fields in evaluating the patient regarding on the prognosis and the responsiveness to therapy of human tumors. The author analyzed thirty eight meningiomas(meningothelial 5, transitional 7, fibrous 5, psammomatous 2, atypical 11, hemangiopericytic 6 and hemangoblastic 2 cases) using flow cytometry and Ag-NORs staining in the paraffin embedded tissues. The results are summarized as follows : 1. In flow cytometric study, twenty eight cases were diploid and the remaining 10 cases were aneuploid. The latter included meningothelial 3, atypical 3, hemangiopericytic 2 and hemangioblastic 2 cases. 2. In Ag-NORs study, the mean mumber of Ag-NORs had a significant difference between classical types(1.46±O.21) and atypical meningiomas(1.88±0.36) including hemangiopericytic one(1.74±0.38) (P<0.05). 3. The cytometric S phase, G_(0)/G₁ phase and proliferation index and the mean number of Ag-NORs had a significant difference between classical diploid and atypical diploid meningiomas(P<0.005). 4. There was no significant relationship between cytometric S phase and the mean number of Ag-NORs in classical meningiomas.

브랜드 인지도와 광고가 콘택트렌즈의 착용감과 가격만족도에 미치는 영향

임동규 ; 신상준 ; 한지선 ; 이익한 ; 김진숙 김천대학교 2016 김천대학교 논문집 Vol.36 No.-

The purpose of this research was to analyze the effects of brand awareness and brand advertising on price satisfaction and comfort in contact lens. We did a survey with 200 university students (85 male, 115 female) who have experience of wearing contact lens from April to May in 2015. The brand awareness of contact lens influences to purchasing intention of contact lens, it effects women more than men. Many respondents(53%) replied that the reliability is the most important elements of the advertising. This survey indicates that there is no statistically significant correlation between the brand awareness and advertisement with price satisfaction in contact lens. Therefore we could confirm they have dissatisfaction for prices of contact lens regardless to brand awareness or advertisement. The brand and advertising dependence group have more comfort of contact lens than non-dependence group when they are long time wear of contact lens. Therefore, there is statistically significant correlation between the brand awareness and advertisement with comfort of contact lens. As a result, brand awareness and reliability of advertising influences to purchasing intention of contact lens. But there is no statistically significant correlation with price satisfaction in contact lens. Whereas, brand awareness and advertisement have a statistically significant correlation with comfort of contact lens.