http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
림프종 환자에서의 갈륨, TI-201 그리고 Tc-99m MIBI 섭취의 비교
천경아,조인호,원규장,이경희,이형우,현명수,이재태,이규보 영남대학교 의과대학 2002 Yeungnam University Journal of Medicine Vol.19 No.2
Purpose; Ga-67 scintigraphy has been used for the evaluation of tumors, especially lymphoma. Recently, Tl-201 and Tc-99m MIBI were also used to tumor imaging. Tl-201 and Tc-99m MIBI had better physiologic characteristics than Ga-67, so we studied 32 biopsy proven lymphoma patients (male 24, female 8, mean age 46 years) with Ga-67, Tl-201 or Tc-99m MIBI and compared the scan findings. Materials and Methods: Twenty-three of 32 patients were injected 74-111 MBq (2-3 mCi) of Tl-201, before chemotherapy and imaged with dual-headed SPECT (Prism 2000, Picker, USA) at 30 minutes after injection. Delayed images were obtained after 3 hr in 8 patients. Twenty seven of 32 patients were injected 740 MBq (20 mCi) of Tc-99m MIBI and imaged at 30 minutes after injection. 111-185 MBq (3-5 mCi) of Ga-67 was injected in 12 patients and imaged at 48 and 72 hours after injection. Twenty eight patients were diagnosed as non-Hodgkin's lymphoma and others were Hodgkin's lymphoma. Results: Twenty patients were positive on Tl-201 scan and 3 patients showed negative findings. One of these 3 patients, Tc-99m MIBI and Ga-67 scan were positive. Twenty two patients were positive on Tc-99m MIBI scan and 5 patients showed negative findings. One of these 5 patients, Tl-201 was positive and 2 were positive on Ga-67 scan. Ten of 12 patients showed positive findings on Ga-67 scan. The sensitivity of these agents were 83.3%, 87.0% and 81.5% for Ga-67, Tl-201 and Tc-99m MIBI, respectively. The sensitivity was highest in Tl-201 scan, but there were no significant differences among three tests. In this study, there was no significant difference of uptake ratios between early and delayed images of Tl-201. Conclusion: Scintigraphy with Tl-201 and Tc-99m MIBI in lymphoma patients have similar sensitivity with Ga-67.
Web 인지도를 반영한 전자상거래 마케팅 채널 경쟁에 관한 연구
차춘남,조형래 한국경영과학회 2000 經營 科學 Vol.17 No.3
The proliferation of electronic commerce(EC) has led manufacturers to consider internet based marketing as a salient candidate for strategic diversification of marketing channel. In this case, each manufacturer can build its own Web store or rent an existing special EC store. Such decision making of 'build' or 'rent' can be analyzed by a game model which derives the Nash solutions for price and profit considering degree of competition with other competitive manufacturers. In this paper, to overcome the drawbacks of the traditional linear demand function, we first propose a new linear demand function which incorporates not only the price difference between competitive products but the awareness of Web stores perceived by the consumers, then design the game models to analyze the characteristics of three typical types of marketing channel in duopoly market. Based on the Nash solutions of the game models, we analyzed the effect of the degree of competition and Web awareness in selecting the optimal marketing channel.
요추 Y-각 협착증 : 요추간 협착증의 새로운 개념 New Concept of Lumbar Stenosis
김영수,조용은,박형천,윤도흠,노성우 대한신경외과학회 1993 Journal of Korean neurosurgical society Vol.22 No.1
Authors measured the Y-shaped angle made by both yellow ligaments and both laminae named Y-angle at the spinal CT scan in normal and lumbar stenosis group. The normal range of Y-angle is between 60˚and 95˚. Lumbar stenosis is classified into narrow Y-angle stenosis(<60°) and wide Y-angle stenosis(>95°) by Y-angle. Narrow Y-angle stenosis is most common in degenerative spondylotic stenosis. Wide Y-angle is most common in congenital stenosis. The Y-angle is a simple and useful diagnostic indicator in the diagnosis of lumbar spinal stenosis on CT scan and MEU scan.
Phase-Type 분포를 이용한 보증서비스 비용 분석
김호균,백천현,조형수 한국경영과학회 2000 韓國經營科學會誌 Vol.25 No.3
We consider the question of servicing warranties for repairable items. During the warranty period, each time an item fails the manufacturer has the obligation to restore the item to operational condition either by repairing the item or by replacing it by a new item. For products with phase-type lifetime distributions where the phases represent the condition of the item. We develop algorithms to determine the expected cost of servicing a warranty and use it in making the repair/replacement decision. Illustrative numerical examples are presented.
보신 관광에서 감염된 수입성 Sparganosis 1예 : Intake of Thailand Snake during Trip
서환조,박명재,고경식,백영한,조유정,양현종,류경남,정형근,전정열 대한감염학회 1992 감염 Vol.24 No.1
Human sparganosois was reported more than 100 cases in Korean population. However no case reported yet in Korea as a patient was infected by sparganum from other geographical area, such as Thailand. The case we are reported here is a 38 year-old Korean male who had been suffered from mass being a small, round and soft consistance in upper portion of his right thigh. The patients stated that he had an opportunity to eat living snake in Bangkok, Thailand during trip. As therapy praziquantel (75㎎/㎏/day) was given p.o. for 14 days, but in vain to cure. Following medical treatment, surgical exicision was performed to remove a alive, soft, whitish-milky, mobile and elongated sparganum. Serlogical test by micro-ELISA for sparganum-specific antibody revealed a high serum antibody level of absorbance 0.67 (positive criterion: absorbance 0.22).
Errors in Pi-Coefficients Due to the Strain Effects in Resistor Stress Sensor on (001) Silicon
CHO, Chun-Hyung,CHA, Ho-Young The Institute of Electronics, Information and Comm 2011 IEICE transactions on electronics Vol.94e.c No.5
<P>This work focuses on a study of strain effects in resistor stress sensors fabricated on (001) silicon and their influences on the determination of piezoresistive (pi) coefficients for the precise measurements of die stresses in electronic packages. We obtained the corrected values of the pi-coefficients by considering the strain effects, without which more than 50% discrepancies may be induced.</P>
Stress-Sensors with High-Sensitivity Using the Combined Meandering-Patterns
Cho, Chun-Hyung,Cha, Ho-Young The Institute of Electronics and Information Engin 2015 Journal of semiconductor technology and science Vol.15 No.1
In this work, the combined meandering-pattern stress-sensors were presented in order to achieve the high sensitivity of stress sensors. Compared to the previous works, which have been using the single meandering-pattern stress-sensors, the sensitivity was approximately observed to increase by 30%~70%. Also, in this paper, more simple and convenient stress-measurement method was presented.