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도시성장분석상 위성영상자료와 구역자료의 통합이용에 관한 연구
김재익,황국웅,정현욱,여창환 한국지리정보학회 2004 한국지리정보학회지 Vol.7 No.3
위성영상은 도시의 물리적 확산 및 변화를 예측하는데 많이 활용되고 있다. 그러나 이 방법은 도시화된 지역이 어느 정도의 강도로 개발되었는지를 파악할 수 있는 밀도분석에는 적절치 못하다. 이는 위성영상이 미시적 공간단위로 토지이용 현황을 분석하는 반면 통계자료는 거시적 공간단위로 구축되어 있어 통계자료를 미시적인 공간단위에 적용하는데 어려웠기 때문이다. 본 연구는 위성영상자료와 통계청의 기초단위구라는 미시적 구역통계자료를 활용하여 도시성장분석상 이들 자료를 통합하여 활용하는 것이 유용함을 입증하고자 하였다. 연구대상지역은 대구광역시로 하였으며, 분석자료로 1985년과 2000년의 위성영상 Landsat TM틀 와 구역통계자료로 기초단위구를 이용하였다. 분석결과 위성영상자료는 도시의 확산 그리고 기초단위구는 밀도 분석이 용이하여 도시성장에 따른 확산과 밀도변화를 동시에 파악할 수 있었다. Nowadays, a satellite image is widely utilized in identifying and predicting urban spatial growth. It provides essential informations on horizontal expansion of urbanized areas. However, its usefulness becomes very limited in analyzing density of urban development. On the contrary, zonal data, typically census data, provides various density information such as population, number of houses, floor information within a given zone. The problem of the zonal data in analyzing urban growth is that the size of the zone is too big. The minimum administration unit, Dong, is too big to match the satellite images. This study tries to derive synergy effects by matching the merits of the two information sources-- image data and zonal data. For this purpose, basic statistical unit (census block size) is utilized as a zonal unit. By comparing the image and zonal data of 1985 and 2000 of Daegu metropolitan area, this study concludes that urban growth pattern is better explained when the two types of data are properly used.
여익현,배경근,류병훈 한국콩연구회 1998 韓國콩硏究會誌 Vol.15 No.1
Ethylene is Known to have properties such as retardation of longitudinal growth and leaf expansion, increase in stem thickness, and stimulation of overall growth. This experiment was conducted to provide the background for application of beneficial properties of ethylene to bean sprouts production. Samples were put on the treatment for 4 days total and alt the parameter were measured at 5th day of the experiment. The results are as follows : Mean body length from upper part was decreased 2.2cm, but middle part and lower part were rather increased 1.5cm and 0.2cm, respectively, compared with the mean values of controls. Mean difference in stem thickness for upper, middle, and lower part of the stem were 0.5mm, 0.4mm, and 0.2mm respectively. Especially, it is a great way to change shape of the bean sprout in desired way without using any chemicals, such as pesticides or growth stimulation reagent.
여익현,황영현,배경근 한국콩연구회 1999 韓國콩硏究會誌 Vol.16 No.2
The results clearly stated that the growth and duality of bean sprouts were influenced in great extents by water spraying method employed. When fresh water was used, water supply through the bottom caused rapid increase in internal temperature ( $gt; 26℃ after 48 hours) and carbon dioxide (CO₂ level (9-10% before water spraying, measured on 15-35cm from bottom of the vessels), which resulted in obstruction of respiration and accumulation of organic compounds in stem of the sprouts. These became main reason of the unpleasant order and freshness problem of the sprouts upon completion of the growth. On the other hand, when water supply from the top (through the multiple holed container at the top of the vessel) was employed. the growth and yield of the sprouts were much unproved due to the lowering of internal temperature ( $lt; 23℃ after 48 hours) and increase in release of CO₂ gas (7-8% before water spaying). The results of the experiments showed that water spray method is one of the key factors for the growth of the bean sprouts. It was concluded thai the employment of the method which filling up vessel with water at one time through the multiple holed water container attached on the top, instead of existing going and returning shower method, possibly avoid the decomposition, overgrowth and browning of the bean sprouts 6y decrease in internal temperature and improvement of CO₂ release.
Poster Session : PS 0680 ; Rheumatologyy ; A Case Report of SAPHO Syndrome Treated with Alendronate
( Hyun Ik Shim ),( Seong Ryul Kwon ),( Won Park ),( Ji Hyeon Baek ),( Yeo Ju Kim ),( Kyong Hee Jung ),( Kowoon Joo ),( Mie Jin Lim ) 대한내과학회 2014 대한내과학회 추계학술대회 Vol.2014 No.1
Synovitis, Acne, Pustulosis, Hyperostosis and Osteitis (SAPHO) syndrome is an osteoarticular- skin syndrome characterised by sterile infi ammatory arthro-osteitis of the anterior chest wall. Due to its diverse musculoskeletal and skin manifestations, SAPHO syndrome is very hard to diagnose and despite the effect of empirical treatment with steroids and DMARD, there is not enough clinical studies to establish proper treatmentprotocol. We report a case of SAPHO syndrome presenting anterior chest wall pain and pustulosis who was successfully treated with alendronate.
SAPHO 증후군에서 경구 Alendronate로 치료한 1예
심현익 ( Hyun Ik Shim ),박원 ( Won Park ),김여주 ( Yeo Ju Kim ),정경희 ( Kyong Hee Jung ),백지현 ( Ji Hyeon Baek ),임미진 ( Mie Jin Lim ),주고운 ( Kowoon Joo ),권성렬 ( Seong Ryul Kwon ) 대한류마티스학회 2015 대한류마티스학회지 Vol.22 No.5
본 저자들은 손가락의 골절과 감염이 동반된 SAPHO 증후군에서 경구 bisphosphonate로 성공적으로 치료하였기에 이를 보고하는 바이다. SAPHO syndrome, characterized by synovitis, acne, pustulosis, hyperostosis, and osteitis is rare compared to other spondyloarthropathies. It is also difficult to diagnose, and treatment methods have not yet been fully identified. Approximately 72% of patients are diagnosed with at least one other disease before a final diagnosis of SAPHO syndrome. In addition, SAPHO syndrome is subject to a delayed diagnosis period of 4.5 to 9.1 years. Medications such as non-steroidal anti-inflammatory drugs, disease-modifying anti-rheumatic drugs, and tumor necrosis factor inhibitors are used in treatment of SAPHO syndrome. Bisphosphonate is also used for refractory SAPHO syndrome; however, most reports on this relate to intravenous injection of medication. The authors experienced and subsequently reported on a case involving a patient with SAPHO syndrome accompanied by fracture and infection of the left second finger who was treated with the oral biphosphonate, alendronate. (J Rheum Dis 2015;22:313-316)
서울지역 대기오염과 급성관상동맥증후군 환자의 흉통 발생의 관계에 대한 연구
조익준,신중호,정성구,서길준,이중의,정연권,이창현,윤여규 대한응급의학회 2002 대한응급의학회지 Vol.13 No.3
Purpose: There have been some studies on the hazardous effects of air pollution for patients with cardiovascular diseases. This study was designed to evaluate the possible relationship between air pollution and development of chest pain in acute coronary syndrome patients. Methods: The medical records of 109 acute coronary syndrome patients, who visited two university hospital emergency rooms in the Seoul area between January 1999 and July 2001, were reviewed. Hourly concentrations of particulate mass< 10 μm and of four gaseous air pollutants were measured at 19 different points in the Seoul area. The data were analyzed using a case-crossover approach. Results: The analysis of the data showed no definite relationship between chest pain development and either the concentrations of particulate mass<10 μm(PM_10) or of four gaseous air pollutants; namely, carbon monoxide (CO), nitrogen dioxide(NO₂), ozone (O₃), and sulfur dioxide (SO₂). However, increases in the concentrations of particulate matter, gaseous NO₂and gaseous O₃showed a positive correlation, but without statistical significance. Conclusion: This study shows no relationship between the concentrations of PM10 and other air pollutants with the development of chest pain in acute coronary syndrome patients. However, for particulate mass<2.5μm, which is currently not measured in the Seoul area, the possibility of a relationship between development of chest pain in acute coronary syndrome patients and particulate air pollutants still exists.
( Chan Ik Park ),( Sang Bong Lee ),( Kwang Hee Yeo ),( Seungchan Lee ),( Sung Jin Park ),( Ho Hyun Kim ),( Jae Hun Kim ),( Chang Won Kim ),( Chan Yong Park ) 대한외상학회 2016 大韓外傷學會誌 Vol.29 No.2
Transcatheter arterial embolization (TAE) for blunt hepatic injury in children is not common and is especially rare after damage control surgery (DCS). We report a successful TAE after DCS on a child for massive bleeding from the left hepatic artery due to a motor vehicle accident. The car (a sport utility vehicle) ran over the chest and abdomen of a 4- year-old boy. On arrival, initial vital signs were as follows: blood pressure, 70/40 mmHg; heart rate, 149/min; temperature, 36.7。C; respiratory rate, 38/min. After resuscitation, computed tomography was done, and a suspicious contrast leakage from a branch of the left hepatic artery and a spleen injury (grade V) were found. TAE was performed successfully after DCS for a liver injury. [ J Trauma Inj 2016; 29: 47-50 ]
적응성 이중 마찰 관측기 및 지능형 불확실성 보상기를 이용한 슬라이딩 모드 기반 마찰 제어
한현태(Hyun Tae Han),한성익(Seong Ik Han),여대연(Dae Yeon Yeo),배종일(Jong Il Bae),이권순(Kwon Soon Lee) 대한전기학회 2009 대한전기학회 학술대회 논문집 Vol.2009 No.10
마찰은 모터 시스템, 공작기계, 로봇 등과 같이 다양한 서보 시스템에서 정밀 위치 추적에 주요 방해물로 작용하는 중요한 인자로 알려져 있다. 마찰은 때로 서보 제어 시스템의 바람직하지 않은 시간 의존 성능을 유도하고 불안정성을 유발할 수도 있다. 결국 마찰보상은 제어기의 높은 이득에 의존하지 않고 부드러운 제어 신호를 이용해 바람직한 제어 성능을 얻도콕 이루어져야 한다. 그러나 마찰은 시간, 온도, 상대 속도와 같은 여러 조건에 따라 복잡한 거동을 보이고, 일부 특성은 심지어 완전히 파악할 수도 없다. 따라서 본 논문에서는 외란에 강인한 마찰 보상 방법으로 이중 마찰 파라미터 관측기 및 슬라이딩 모드 제어와 결합한 순환형 신경망을 이용하고 비선형 마찰 파라미터를 처리하기 위해 LuGre 마찰 모델의 마찰 파라미터 추정에는 이중 마찰 모델 기반의 관측기를 적용 또한 정밀위치 추적 성능을 향상시키기 위해 순환형 신경망 기술을 이용하여 시스템 불확실성의 근사법을 개발하여 제안한 마찰 보상 방법의 성능에 대한 우수성을 검증한다.