한반도에 내습한 태풍의 빈도 및 특성

유희정,박준일,이배호,Yu, Hui-Jeong,Park, Jun-Il,Lee, Bae-Ho 한국수자원학회 1983 물과 미래(한국수자원학회지) Vol.16 No.4

In an attempt to study the frequency and characteristics of typhoons which hit the Korean Peninsula a period of 40 years from 1946 through 1979 was covered to collect necessary data with respect to occurrence of typhoons and their influence Typhoons which occurred between 1959 and 1980 were grouped according to their treking routes and strengths for detailed analyses. The results are summarized as follow; 1. The average annual occurrence of typhoons in the western pacific ocean was found to be 28, only two of which attacked the Korean Peninsula. 2. The annual probabilities of typhoons attacking were 0.925 for one or more, 0.700 for twice or more and 0.323 for there times or moro. 3. The monthly probabilities were found to be 0.228 in July, 0.434 in August and 0.194 in September. 4. An half of the typhoons which hit the Korean Pennisula passed through the western coast and the rest through the southern and eastern coasts in similan proportions. 5. The western coast is hit most frequently in July and less afterwords, visa-vis the southern and the eastern coast. 6. The minimum SLP averaged 983 mb and ordered by the treking routes as S<E<WE<W1<CWE. In the group average SLP, W1 and CWE types are higher 20mb than S, E or WE types. 7. Heavy storms esperienced in the Penisula are found to have accompanied the WE and S types during the months of August and September.

한반도에 대한 태풍내습확률 산정에 관한 연구

박준일,유희정,이배호,Park, Jun-Il,Yu, Hui-Jeong,Lee, Bae-Ho 한국수자원학회 1984 물과 미래(한국수자원학회지) Vol.17 No.4

An attempt is made to present a method of prediction for typhoons apporaching the Korean-peninsula. The method is based upon the Bayesian theorem to improve the observed (prior) probabilities of typhoons approaching the Korean sea area incorporating conditional probability. A total of 248 typhoons is collected and analyzed to establish prior probability and conditional probability according to the defined procedure. The typhoons used are those which encompassed the western Pacific area to which the Korean-peninsula is subjected. The results of examplary computations suggest that the presented method is promising for predicting approaching typhoons.

Special Report - 5G 서비스 전망

이호원,유희정,전홍범,Lee, Ho-Won,Yu, Hui-Jeong,Jeon, Hong-Beom 한국정보통신기술협회 2016 TTA저널 Vol.163 No.-

댄스스포츠 참가자의 참가유형과 부부의사소통 및 갈등해소의 관계

이상구(Lee Sang Gu),장호중(Jang Ho Jung),유희철(Yu Hui Cheol),김정묵(Kim Jeong Mug),김경란(Kim Gyeong Lan) 한국사회체육학회 2003 한국사회체육학회지 Vol.19 No.2

The purpose of this study is to investigate the relationship between Dance sport`s Participant on participation type, Marital communication and Marital Conflict Resolution, and marriage satisfaction. Specifically, it aims to examine: First, the difference of marital communication by dance sports participation type. Second, the difference of marital conflict resolution by dance sports participation type. Third, the influence of marital communication, on marital conflict resolution. The subjects of this study was selected by cluster random sampling of dance sport`s participant in dance program facility of Seoul and Kyung-ki. The survey questionnaires were used to collect the data. The questionnaire for the formalization factor marital communication had been developed by Lee(1991). The questionnaire for the marital conflict resolution had been developed by Hyun(1994). The statistical methods such as ANOVA, multiple regression analysis were used to analyze the collected data. From the analyses of the data, the study reached the following conclusions : First, marital communication are partially different by dance sports participation type. Second, marital conflict resolution are partially different by dance sports participation type. Third, marital communication are partially influence on marital conflict resolution.

손가락 힘 통제 특성에 기반한 운동의지장애의 정량적 평가 방법 개발

정기효,김은주,유희천,나덕렬,이민정,서상원,이병화,Jeong, Gi-Hyo,Kim, Eun-Ju,Yu, Hui-Cheon,Na, Deok-Ryeol,Lee, Min-Jeong,Seo, Sang-Won,Lee, Byeong-Hwa 대한인간공학회 2006 大韓人間工學會誌 Vol.25 No.2

Motor intentional disorders have been studied by visual examination methods such as cross-response task and Luria loop. To provide more analytical, quantitative information for motor intentional disorders, the present study developed a method which evaluates force control capabilities by the index finger. The assessment method analyzes the finger force control capabilities at four stages(initiation, development, maintenance, and termination) with NK Pinch-GripTM(force resolution= 0.098 N; temporal resolution=50Hz). By applying the assessment method, a patient(age=66) with callosal legion was compared with 6 healthy males(mean age=65.5, SD=2.8), showing significant but different decreases in force control capabilities depending on hand and response location. The assessment method would be of use to better understand various aspects of motor intentional disorders such as the effects of the disorders to the neurological network of the brain and severity assessment of the disorders.

국소적으로 진행된 자궁경부암에서 동시 항암화학방사선 치료의 독성 비교

장혜진 ( Jang Hye Jin ),유희석 ( Yu Hui Seog ),전미선 ( Jeon Mi Seon ),장기홍 ( Jang Gi Hong ),이정필 ( Lee Jeong Pil ) 대한산부인과학회 2004 Obstetrics & Gynecology Science Vol.47 No.5

Objective : Concurrent chemoradiotherapy is the idea where the chemotherapeutic agent acts as a radiosensitizer thus producing a synergistic effect between radiotherapy and chemotherapy. We evaluated the efficacy and toxicity of concurrent chemoradiotherapy (CCRT) in loco-regionally advanced cervical cancer patients. Methods : The medical records were retrospectively reviewed for 24 patients who underwent CCRT (cisplatin 70 mg/m^2 on day 1, 29; 5-FU: 100 mg/m^2 on day 2-5 and 30-33×4 cycles), 26 patients who underwent weekly CCRT (cisplatin: 40 mg/m^2 ×6 weeks) and 62 patients who had underwent radiation therapy alone for loco-regionally advanced cervical cancer at Ajou University Hospital. Toxicity was assessed according to the Gynecologic Oncology Group toxicity criteria. Statistical analysis was performed with chi-squre test. Results : 2 year overall survival rate of patients only treated with RT was 75.0% (39/52). When this was compaired to CCRT, 83.3% (20/24) with monthly CCRT and 88.5% (23/26) with weekly CCRT of 2 year overall survival rates were attained. Recurrence rates were measured 2 years after each therapy done, they were 30.8% (16/52) with RT, 25.0% (6/24) with weekly CCRT, and 23.1% (6/26) monthly CCRT. During CCRT, grade 3 and 4 acute complication rates of nausea/vomiting (20.8% vs. 3.8%) and leukocytopenia (29.1% vs. 15.4%) was significantly higher in monthly group compared to weekly group (p<0.05). Weekly group had more patients who completed planned therapy group compared to weekly group (p<0.05). Weekly group had more patients who completed planned therapy compaired to monthly group (70.9% vs. 84.6%). Conclusion : CCRT improved overall survival rates and disease-free survival rate, but in some cases increased acute toxicity, and it is suggested that CCRT may be advantageous compared to radiation therapy for loco-regionally advanced cervical cancer. Weekly CCRT does not seem to afford distinct advantages in terms of acute toxicities over monthly CCRT, except for possible better patient compliance. Due to small size sample and short duration of follow up, further study of a large group of patients and the long survival rate is necessary.

자궁내 장치의 전위에 대한 임상적 고찰

김진하 ( Kim Jin Ha ),이정필 ( Lee Jeong Pil ),장기홍 ( Jang Gi Hong ),유희석 ( Yu Hui Seog ),오기석 ( O Gi Seog ) 대한산부인과학회 2004 Obstetrics & Gynecology Science Vol.47 No.4

Objective: To study the clinical characteristics on translocation of intrauterine device and the methods of removal. Methods: A retrospective review was performed on 77 cases of translocation of intrauterine device from June 1994 to December 2002. Results

양수과다증이 임신성 당뇨 산모의 임신 결과에 미치는 영향

임종찬 ( Im Jong Chan ),이희종 ( Lee Hui Jong ),김행수 ( Kim Haeng Su ),양정인 ( Yang Jeong In ),김준형 ( Kim Jun Hyeong ),유희석 ( Yu Hui Seog ) 대한산부인과학회 2003 Obstetrics & Gynecology Science Vol.46 No.5

Objective : To determine whether hydramnios occurring in pregnant women complicated with gestational diabetes mellitus (GDM) affects maternal and neonatal outcomes. Methods : We evaluated 277 pregnant women with singleton pregnancies and GDM diagnosed by the National Diabetes Data Group (NDDG) criteria. The study group was consisted of 23 pregnant women diagnosed as hydramnios (Amniotic fluid index ; AFI>24㎝) by ultrasonography, and the control group was consisted of 254 pregnant women with normal AFI (10-24㎝). REtrospective review of maternal and neconatal outcomes in these women was performed. Student t-test, chi-square test, Fisher`s exact test, and logistic regression analysis were used for statistics. Results : There were no significant differences in the maternal age and parity between the two groups. The frequency of preterm labor was higher in the study group compared to the control group (4.3% vs. 34.8%, p<0.001). The frequencies of cesarean delivery due to cephalopelvic disproportion or failure to progress, preeclampsia, and placental abruption were not significantly different between the two groups. The study group showed significantly shorter gestational age (38.2±1.4 weeks vs. 36.7±2.5 weeks, p<0.05) and heavier neonatal birth weight at delivery (3,405.,±595.2 gm vs. 3,701.3±757.9 gm, p=0.026). The frequencies of preterm birth (5.1% vs. 39.1%, p<0.01), macrosomia (13.0% vs. 34.8%, p<0.001), admission to neonatal intensive care unit (7.1% vs. 34.8%, p=0.050), neonatal respiratory complications (3.9% vs. 21.7%, p<0.001), and hyperbilirubinemia (11.0% vs. 47.8%, p<0.001) were higher in the study group even after logistic regression analysis for controlling gestational age. Conclusion : Hydramnios occurring in pregnant women with GDM may be associated with increased risk of preterm birth and neonatal respiratory complications, but not associated with adverse maternal outcomes, except preterm labor.

중증 자간전증이 동반된 임산부에서 혈중 homocysteine 치 측정의 의의

임종찬 ( Im Jong Chan ),이희종 ( Lee Hui Jong ),양정인 ( Yang Jeong In ),김행수 ( Kim Haeng Su ),유희석 ( Yu Hui Seog ) 대한산부인과학회 2004 Obstetrics & Gynecology Science Vol.47 No.3

Objective : The elevated plasma homocysteine concentrations is a independent risk factor of atherosclerosis. We investigated the level of plasma homocysteine is associated with severe preeclampsia. Methods : 28 pregnant women with severe preeclampsia (study group) and 26 normotensive, healthy pregnant women (control group), matched by maternal age, gestational age, pre-pregnant body mass index and parity were enrolled into this study. Blood samples were collected within 24 hours before delivery and just 24 hours after delivery. The level of plasma homocysteine was measured by fluorescent polarization immunoassay. Statistical analysis was performed using Student t test. Results : Plasma homocysteine levels in the women with severe preeclampsia were significantly elevated than those of control group in antepartum and postpartum 24 hours [7.17 2.71 vs 5.37 1.49 g/mL (mean SD); p<0.05 in antepartum, 6.38 2.03 vs 4.48±0.40 g/mL (mean SD); p<0.05 in postpartum]. Conclusion : In the present study the increase of plasma homocysteine in pregnant women with severe preeclampsia is related the pathogenesis of preeclampsia as like in atherosclerosis and may be used as a marker of preeclampsia by further research.

비만환자에서 발견된 난소의 Steroid Cell Tumor 1 예

서성석 ( Seo Seong Seog ),이정필 ( Lee Jeong Pil ),주희재 ( Ju Hui Jae ),이은주 ( Lee Eun Ju ),김호빈 ( Kim Ho Bin ),장기홍 ( Jang Gi Hong ),유희석 ( Yu Hui Seog ) 대한산부인과학회 2004 Obstetrics & Gynecology Science Vol.47 No.5

Ovarian steroid cell tumors are composed exclusively of cells that have the histologic features of steroid hormone secreting cells. And these are rare lesions and have been divided into four subtyes according to their size, location in the ovary, and presence or absence of crystals of Reinke in the cytoplasm as follows: stromal luteomas, hilus cell tumors, Leydig cell tumors (non-hilar type), and steroid cell tumors not otherwise specified. Steroid cell tumors often secret androgens, and manifest themselves with symptoms of virilization. Other presenting manifestations include hirsutism, amenorrhea, obesity, hypertension and alopecia. We experienced a case of ovarian steroid cell tumor, manifested by obesity and amenorrhea and present with a brief review of the literature.