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박효순(H. S. Park),김종훈(J. H. Kim),웨이췬(Q. Wei),이정현(J. H. Lee),성기웅(K. W. Seong),조진호(J. H. Cho) 한국재활복지공학회 2014 한국재활복지공학회 학술대회논문집 Vol.2014 No.11
Intravenous(IV) infusion set is the most commonly used treatment method for the patient in hospital. However, Checking the IV solution flow rate is important to prevent the patient from medical injury. In this paper, using an optical sensor to detect the IV solution exhaustion was presented. The LED and photodiode were used as light transmitter and receiver. Two elements were fixed coplanar, and the light from LED through reflector and achromatic lens arrives to photodiode. Therefore, the proposed optical sensor is able to work at both glass IV bottle and plastic IV pack. The implementation followed optic theory by changing condition such as wavelength of visible LED (R,G,B) , color of IV solution and intensity of illumination. The experimental result shows that the blue LED has largest difference between full and exhaustion of IV solution than using Red and Green LEDs. Also, the output voltage is higher at the case of exhaustion of IV solution than full.
PT, aPTT의 측정에서 항응고제와 혈액의 비율에 따른 검사결과 비교분석
김수견 ( S. K. Kim ),문금희 ( K. H. Moon ),백승옥 ( S. O. Paik ),유선우 ( S. W. You ),이광근 ( K. K. Lee ),박효순 ( H. S. Park ),금동극 ( D. G. Keum ) 대한임상병리사협회 1999 임상혈액검사학회 발표자료집 Vol.5 No.1
The Prothrombin Time (PT) test and activated Partial Thromboplastin Time (aPTT) test are commonly used for screening coagulation disorders and monitoring of anticoagulant therapy. And the proper quality assurance of all the factors relevant to whole process of testing from sampling to reporting. Authors investigated the dilution effects in PT and aPTT testing wheather they were clinically significant factors by assessing the effect of ratio between anticoagulant and whole blood. Fifty healthy and fifty with coagulation abnormality were subjected to this study. Samples were diluted to the ratio of 1:5, 1:7, 1:9, 1:11, and 1:13 by collecting 1.0mL, 1.4mL, 1.8mL, 2.2mL, and 2.6mL into vacuum tube with 0.2mL of 3.8% sodium citrate. Tests were done immediately after sampling. In normal control group, the results of PT and aPTT with dilution ratio of 1:9 were statistically different from those of 1:5, 1:7, 1:9, 1:11, and 1:13 (P<0.01). In the group with coagulation abnormality, those of PT with 1:9 were statistically different from those of 1:5 (P<0.01) and 1:7 (P<0.05) and those of aPTT with 1:9 were statistically different from those of 1:5, 1:7, and 1:13 (P<0.05). In conclusion, the dilution ratio was an important factor for PT and aPTT tests. Especially in abnormal samples, over-citration showed more prominent effects.
박상동,박효순,우정선,유헌형,공성훈,유승광,Park S.D,Park H.S,Woo J.S,Yoo H.H,Kong S.H,Yoo S.K 대한설비공학회 1987 설비저널 Vol.16 No.2
Main objective of this study is to provide heating cost allocation method according to the amount of heating energy consumption in apartments. Heating energy consumptions are calculated by DOE-2.1A program. As a result, heat loss ratio in Ondol heating system, heating cost coefficients of apartments and its using method is presented. Maximum heating cost coefficient rate is 2.63.