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뇌하수체 - 갑상선 축의 평가에 있어 면역방사계수측정법에 의한 혈청 TSH 의 기저치 측정의 의의
서교일(Kyo Il Suh),조보연(Bo Youn Cho),이홍규(Hong Kyu Lee),고창순(Chang Soon Koh),민헌기(Hun Ki Min),이문호(Mun Ho Lee) 대한내과학회 1988 대한내과학회지 Vol.34 No.6
N/A To evaluate whether thyrotropin(TSH) values measured by sensitive immunoradiometric assay(IRMA) can be used as an indicator of pituitary-thyroid status, serum triiodothyronine(T3) and thyroxine(T4) as well as TSH were measured before and after thyrotropinreleasing hormone(TRH) stimulation in 30 normal subjects, 17 patients with hyperthyroidism and 67 patients receiving chronic oral T, therapy for thyroid cancer. IRMA of TSH involves use of two monoclonal antibodies. The detection limit of the assay was 0.04 mU/L and intrassay and interassay variation was less than 5% in TSH concentration of 2.4 and 31.6 mU/L, Over the undetectable to nomal TSH range, an excellent correlation was observed between basal TSH levels and TRH stimulated TSH increment was observed between basal TSH levels and TRH stimulated TSH increment (r=0.94). When the subjects were grouped by their resting free T. index (FT,I), the curve was found to be steeper in high FT4I group (FT4I>9.4) than normal FT4I group (FT4I<9.4) (y=0.82+113x vs y=0.78+1.28x). In 67 patients with thyroid cancer on suppression therapy, 43 had both undetectable basal TSH levels and no TSH response to TRH stimulation while 7 patients had undetectable basal TSH levels but preserved TSH response to TR~H. Measurable TSH response to TRH were found in all patients with detectable basal TSH. Therefore, when basal TSH value of 0.04mU/L was used as a criterion, sensitivity and specificity for prediciting pituitary suppression were 84% and 100% respectively while those were 78% and 72% in case FT4I of 12 was used as a criterion. These findings suggest that the TSH values measured by sensitive IRMA represents status of pitutitarythyroid axis and can be used as a sensitive indicator of pituitary suppression.
팔레트 적재효율을 고려한 농산물 포장상자 통합규격에 관한 연구
서교,이정재,서병륜,Suh, Kyo,Lee, Jeong-Jae,Suh, Byong-Yoon 한국농공학회 2005 한국농공학회논문집 Vol.47 No.1
Despite the variety in sizes and shapes of agricultural products, the unified standardization of packing has been a long time necessity. In this study the stacking efficiency of packing standards for each box using packing Monte Carlo simulation based on the standard pallet is evaluated. As a result of simulation the unified packing standard for agricultural products is suggested by 550$\times$366 mm. With this study it is expected that the unification of the standards can help to increase the utilization of reusable packages and to improve efficiency of agricultural logistics.
서교,김태곤,이정재,Suh, Kyo,Kim, Tae-Gon,Lee, Jeong-Jae 한국농공학회 2008 한국농공학회논문집 Vol.50 No.3
Generally the price of agricultural products has much different characteristics from that of manufacturing products. If products have the limitation of long-term storage and the short period of cultivation, the price of products can be more unstable. Moreover, the price forecasting is very difficult because it doesn't follow any cycle or trend. However price can be regarded as risk instead of uncertainty if we can calculate the probability of price. Reliability analysis techniques are used for forecasting the price change of Chinese cabbage. This study aims to show the usability of reliability analysis for price forecasting. A price-forecasting model was developed based on weather data of the first 10 days of the full cultivating cycle (80 days) 70 days and the average price and standard deviation of wholesale market prices from 1996 to 2001 and applied to forecast the boom price, or the orice which is over the tolerance of market prices, of upland Chinese cabbage in 2002 and 2003. Applied results showed the possibility of boom price forecasting using reliability analysis techniques.
국내 바이오매스 잠재 가용자원을 이용한 바이오 연료 생산량 및 온실가스 감축효과 분석
서교,김태곤,이정재,Suh, Kyo,Kim, Tae-Gon,Lee, Jeong-Jae 한국농공학회 2010 한국농공학회논문집 Vol.52 No.4
Biofuel based on available biomass in rural area could contribute to increase the vitality and income of rural residents. This study estimates the potential production and environmental benefits of biofuel production from surplus rice, rice straw, cow manure, and food waste in South Korea. We could produce about 2.4 billion liters of ethanol using surplus rice and rice straw and 841 million $m^3$ of methane from cow manure and food waste. 1.7 billion liters of gasoline and 800 million liters of diesel could be replaced with these potential biofuel productions, which can annually reduce 4.9 million ton $CO_2$ eq. GHGs.
서교,이정재,Suh, Kyo,Lee, Jeong-Jae 한국농공학회 2005 한국농공학회논문집 Vol.47 No.2
While the need for analyzing and interpreting agricultural logistics are becoming more and more prominent with the rapid changes within the agricultural environment, previously mathematical models have been proved to have its limitations due to the unpredictable traits of agriculture itself and finding the adequate simulation model is not easy. Therefore, in this research, the tank model that has been used to analyze the rainfall-runoff in watersheds, was used to develop a logistics model for estimating shipment by agricultural production. The model was certified by wholesale market data of garlic.
서교,이정재,김태곤,이호재,Suh Kyo,Lee Jeong-Jae,Kim Tae-Gon,Yi Ho-Jae 한국농공학회 2005 한국농공학회논문집 Vol.47 No.4
The object of this study is to develop simulation model using GASS for analyzing complex agricultural marketing. It's hard to analyze agricultural marketing system which consists of many marketing unit by economic mathematical model. This paper proposes simulation model based on GASS which can reduce complexity of system, and applies the national average wholesale cost and retail cost of alpine Chinese cabbage at 2001, 2002 to proposed simulation model.
주성분 분석 및 군집분석을 이용한 지역정보 유형화 프레임워크의 설계와 구현
서교,김태곤,이지민,이정재,Suh, Kyo,Kim, Tae-Gon,Lee, Ji-Min,Lee, Jeong-Jae 한국농공학회 2012 한국농공학회논문집 Vol.54 No.1
For planning and developing rural regions, it is very important to understand and utilize regional characteristics including social, demographic, and economic aspects. The purpose of this study is to find effective analysis techniques and provide a procedure design for mining regional characteristics in South Korea through reviewing and analyzing 41 related studies. The engaged research methods can be classified into five categories (PCA+CA, PCA, CA, GIS, and PCA+GIS) with the combination of three methodologies: principal component analysis (PCA), cluster analysis (CA), and geographical information system (GIS). The combination of PCA and CA occupied about 40 % of research methods used in related studies. The analysis tool of Korean Rural Information Supporting System (KRISS) is designed based on the outcomes of this study and applied to classify the regional capacity of agriculture using agricultural census data (2000) for evaluating its applicability.
증례 : 내분비-대사 ; 림프절 결핵완치 후 갑상선 결핵으로 재발된 1예
유희용 ( Hee Yong Yoo ),정철호 ( Chul Ho Chung ),노미오 ( Mi Oh Roh ),박형규 ( Hyeong Kyu Park ),변동원 ( Dong Won Byon ),서교일 ( Kyo Il Suh ),유명희 ( Myung Hi Yoo ) 대한내과학회 2009 대한내과학회지 Vol.77 No.6
결핵의 유병률이 높은 국내에서 갑상선 결핵은 드물고, 속립성 결핵의 갑상선 침범이나 갑상선 결절, 갑상선염, 농양 또는 갑상선암이 의심되어 갑상선 절제 후 갑상선 결핵으로 진단되어 항결핵제로 치료한 경우가 대부분이다. 저자들은 6년 전 경부 림프절 결핵으로 항결핵제를 복용한 후 완치판정을 받은 32세 여자 환자에서 갑상선 종괴가 우연히 발견되어 미세침흡인세포 검사를 통해 항산균을 확인하고 갑상선 결핵으로 진단한 1예를 경험하였기에 문헌고찰과 함께 보고하는 바이다. Thyroid tuberculosis is rare, and primary tuberculosis is extremely rare. In most cases, thyroid tuberculosis presents as a thyroid nodule, thyroiditis, thyroid abscess, or thyroid cancer, and is often diagnosed after thyroidectomy. We experienced a case of thyroid tuberculosis that presented as a palpable thyroid nodule in a 32-year-old female patient. The patient had been previously diagnosed with cervical tuberculous lymphadenitis and had been treated successfully 6 years ago. Fine needle aspiration of the thyroid gland showed a small number of neutrophils and macrophages in a necrotic background, and many acid-fast bacilli were found with AFB staining. The patient began anti-tuberculosis therapy as an outpatient and is currently being followed regularly. Here, we report a case of thyroid tuberculosis diagnosed after the apparent cure of cervical lymph node tuberculosis. Additionally, a review of the literature is included. (Korean J Med 77:771-774, 2009)