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객체에 근거한 선호도 제약 중심 스케줄링 언어와 성능향상 기법
이기철,문정모,송성헌 한국경영과학회 1995 經營 科學 Vol.12 No.2
For a complex scheduling system like time table construction, its optimal solution, if exists, is hard to obtain. In this paper, the scheduling environment is reasonably confined as where objects have their own events competing for better slots on boards, and objects have their own board slot preferences and belong to one or more classes of the society which globally constrains them. Here, two phase method is suggested, where the first phase is human-like preference dirven and the second phase is for fine tuning by considering all the factors given. Designed and implemented in our system HI-SCHED are dynamic object switching, temporal-constraint-driven intelligent backtracking, case-based revisions, object-based approach, and so on. Some satisfaction degrees are also defined to measure the usefulness of our method. In addition, look-ahead dynamic object switching is considered, and additional global constraints are introduced and processed. A simple scheme is also used to verify the usefulness of the post processing scheme.
( Jung Mo Lee ),( Sang Hoon Lee ),( Sung Woo Moon ),( Joo Han Song ),( Song Yee Kim ),( Kyung Soo Chung ),( Eun Young Kim ),( Ji Ye Jung ),( Young Ae Kang ),( Moo Suk Park ),( Young Sam Kim ),( Joon C 대한내과학회 2014 대한내과학회 추계학술대회 Vol.2014 No.1
Lymphangioma is an abnormal collection of congenitally isolated lymphatic system, which is found mostly in early childhood. Although this may occur in any part of the body mainly including the head, neck, axilla and abdomen, there are rare reports about mediastinal lymphangioma especially in old age. We hereby report a case of solitary mediastinal lymphangioma con. rmed pathologically in a 66-year-old woman. A 66-year-old woman who underwent a kidney transplant surgery 20 years ago was referred to pulmonary division because of a newly developed right upper mediastinal nodule on simple chest X-ray, which was not shown one year ago. She had no symptoms such as cough, dyspnea and chest pain. She was a never smoker. Chest computed tomography (CT) scan demonstrated about a 25mm well-de. ned low density nodule at right upper anterior mediastinum. Initial impression of CT scan was a benign cystic mass, such as bronchogenic cyst, or cystic change of neurogenic tumor. We observe her for 1 year. Because size of the nodule increased from 25 to 34mm in follow-up chest CT scan compared with previous CT scan. Therefore anterior mediastinal tumor was completely resected by video-assisted thoracosopy. Its immunohistochemical stain revealed positive for D2-40 and CD31, which supported the histological diagnosis of cystic lymphangioma. We report the 3rd case of solitary mediastinal cystic lymphangioma in Korea as it is an extremely rare lesion in old age. This can contribute to literature due to its rarity and unusual location. And we recommend that clinicians should consider cystic lymphangioma as a possible diagnosis for the patients with increasing mediastinal mass asymptomatically.
우울 경향과 복모혈(腹募穴), 배유혈(背兪穴) 압통과의 관계 비교 연구
서민정 ( Min Jung Suh ),김송이 ( Song Yi Kim ),박영재 ( Young Jae Park ),정원모 ( Won Mo Jung ),차수진 ( Su Jin Cha ),이향숙 ( Hyang Sook Lee ),이혜정 ( Hye Jung Lee ),박히준 ( Hi Joon Park ) 경락경혈학회 2010 Korean Journal of Acupuncture Vol.27 No.4
Objective: To examine whether any correlation between tendency towards depression and tenderness at special acupuncture points exists, thus to explore the potential diagnostic property of acupuncture points. Methods: A total 31 subjects were included in this study. They filled out questionnaires about their mental [Beck Depression Inventory (BDI), Stress Response Inventory (SRI), Profile of Mood States (POMS)] and physical (fatigue due to overexertion, and food accumulation) symptoms. Identical weight around Alarm points (CV17, CV12, ST25, CV5, CV4, and LR13) and transport points (BL14, BL20, BL21, BL22, BL25, and BL27) was given using an algometer and the subjects rated their pain on an 11-point numerical rating scale. Heart rate variability (HRV) was also measured. Results: The subjects were divided into two groups, normal and depressive tendency groups with a cut-off point of nine on BDI. The depressive tendency group reported significantly higher values in SRI, POMS, and questionnaire for fatigue due to overexertion. In the pressure pain measurement, depressive tendency group had more pressure pain at CV12, left side of BL20, BL14, BL22 and both sides of BL21, BL25, BL27, significantly (each p<0.05). The data of HRV did not show significant differences between groups. Conclusions: People with a tendency towards depression may be prone to stress, negative mood, and fatigue due to overexertion. In addition, they may be more likely to develop tenderness at alarm points and transport points compared with healthy people. Further research is needed to confirm this finding.
( Eun Lee ),( Young Mo Kang ),( Bum Jin Jung ),( Young Jun Jo ),( Ji Suk Sung ),( Yong Moon Woo ),( Kyung Pyo Jo ),( Je Sung Lee ),( Hae Jin Tae ),( Suk Woo Kang ),( Jung Hoon Song ),( Eun Jung Jung ) 대한내과학회 2014 대한내과학회 추계학술대회 Vol.2014 No.1
Background: Obesity, especially central obesity is a risk factor of fatty liver. Whereas abdominal ultrasound is widely used to detect hepatic steatosis, it is unable to provide a precise information of hepatic fat content. Liver biopsy is not frequently performed because of its invasive nature although it is accurate. The aim of this study is to evaluate the relationship between histologic degree of fatty liver and visceral fat. Methods: Forty seven patients with fatty liver or fatty metamorphosis in liver biopsy fi nding were enrolled. They were diagnosed from January 2003 to July 2008. Abdominal computerized tomography (CT) was performed on all subjects within a month of liver biopsy. Biopsy specimens were reviewed by two pathologists. The degree of steatosis was graded as minimal, mild (grade 1), moderate (grade 2) and severe (grade 3). Grade 0 was defi ned when the patients had no evidence of fatty liver in biopsy specimenalthough they were diagnosed via imaging study (ultrasound or CT). Abdominal fat area (total fat, visceral fat, subcutaneous fat) were quantifi ed using abdominal CT. Liver fat content in biopsy specimen was also estimated quantitatively by morphometric analysis. Results: The grades of hepatic steatosis were 0 in 7, minimal in 7, mild in 22, and moderate to severe in 11 patients. Baseline characteristics between groups according to the histologic degree were not signifi cantly different. Visceral fat/total fat ratio correlated signifi cantly with the grades of steatosis (0. 43±0. 14, 0. 49±0. 05, 0. 52±0. 10, 0. 56±0. 05, respectively). The liver fat content measured by morphometry also correlated signifi cantly with visceral fat/total fat ratio. Conclusions: Visceral fat, as a marker of central obesity, was correlated signifi cantly with the histologic degree of hepatic steatosis. Measurement of abdominal fat area by CT will be clinically useful for prediction of histologic degree of fatty liver.