유방종괴의 세침흡인세포학의 진단적 가치에 관한 연구

김동원,이동화,Kim, Dong-Won,Lee, Dong-Wha 대한세포병리학회 1993 대한세포병리학회지 Vol.4 No.1

This study was performed in order to evaluate the accuracy and the usefulness of the fine needle aspiration cytology (FNAC) on the breast lesions, to compare the FNAC findings between fibroadenoma and fibrocystic disease, and to determine the accuracy of cytologic Black's nuclear grading. The subjects in this study were 110 cases of FNAC, later confirmed by biopsy, between January 1988 and December 1991. The results are as follows ; 1 Comparison between the results of the FNAC and the histologic findings revealed that FNAC had a sensitivity of 96.6%, a specificity of 100%, a false negative rate of 3.4% a false positive rate of 0.0%, and an overall diagnostic accuracy of 98.2%. 2 Semi-quantitative evaluation of epithelial celluarity, stroma, and naked nuclei in the smears of aspirate showed high celluarity in 56.7% of the aspirates from fibroadenoma and in 0% of those from fibrocystic disease. Abundant stroma was found in 46.7% of the fibroadenoma and none of fibrocystic disease. Numerous naked nuclei were found in 60% of the fibroadenoma and 4.5% of the fibrocystic disease. The overall diagnostic accuracy was 98% 3. In order to determine the accuracy of Black's nuclear grading of FNAC on breast carcinoma, we retrospectively studied 38 cases of ductal carcinomas diagnosed by FNAC with subsequent histologic confirmation. The concordance rate with histology was 94.7%. These results suggest that FNAC of breast is a diagnostically accurate method, and provide for the preoperative differential diagnosis between fibroadenoma and fibrocystic disease. Our results also suggest that the evaluation of nuclear grading of FNAC can predict clinical outcome and decide the way of management of breast cancer.

후쿠시마원전사고 이후 원전 경제성과 안전성(사회적 수용성)의 최적점 연구

김동원,Kim, Dong-Won 한국방사성폐기물학회 2013 방사성폐기물학회지 Vol.11 No.3

Since the Fukushima nuclear power plant accident in March 2011, critical views on the increase in operation of nuclear power plants including the safety and the economic feasibility thereof have been expanding across the world. In these circumstances, we are to find out solutions to the controversial questions on whether nuclear power plants are economically more feasible than other energy sources, while the safety thereof is fully maintained. Thereby, nuclear power plants will play a key role as a sustainable energy source in the future as well as at present. To measure the social safety level that Korean people are actually feeling after the Fukushima accident, a method of cost-benefit analysis called the Contingent Valuation Method(CVM) was used, whereby we wanted to estimate the amount of expenses the general public would be willing to pay for the safety based on their acceptance rather than the social safety. As a result of calculating the trade-off value of the economic feasibility versus the safety in nuclear power plants through the survey thereon, it caused the nuclear power generation cost to be increased by 4.75 won/kWh. Reflecting this on the current power generation cost of 39.11 won/kWh would increase the cost to 43.86 won/kWh. It is thought that this potential cost is still more competitive than the coal-fired power generation cost of 67 won/kWh. This result will be available as a basic data for the 2nd Energy Basic Plan to be drawn up this year, presenting policy implications at the same time.

어지럼증, 식욕부진, 전신권태감 등을 동반한 만성 질환에 의한 빈혈 환자의 한방치료 1례

김동원,길봉훈,조혜미,정다해,윤혜수,이은창,원지영,이정은,Kim, Dong-won,Kil, Bong-hun,Jo, Hye-mi,Jung, Da-hae,Youn, Hye-soo,Lee, Eun-chang,Won, Jee-yeong,Lee, Jung-eun 대한한방내과학회 2021 大韓韓方內科學會誌 Vol.42 No.5

The purpose of this study was to report the clinical effect of Korean medicine in a patient with anemia of chronic disease (ACD). The patient was treated with herbal medicine, acupuncture, and moxibustion in combination with Western medicine for around 4 weeks. Although the patient's hemoglobin concentration was maintained at a similar level, the other clinical symptoms of ACD (anorexia, xerostomia, dizziness, and general weakness) were improved after the treatment with Korean medicine. Therefore, Korean medicine treatment may be effective for improving the clinical symptoms of ACD.

인천지역 노인의 국민연금 수급이 여가문화활동 및 생활체육활동에 미치는 영향

김동원(Dong Won Kim) 한국여가레크리에이션학회 2012 한국여가레크리에이션학회지 Vol.36 No.1

The purpose of this study was based on identifying the current status of senior citizens` leisure activity and sport activities based on the benefits of receiving pension. To achieve the result of this study, the research target has been to narrowed to senior citizens over 60 years old in 8 districts of Incheon city and 366 data were used for final analysis. To verify research problem, frequency analysis, and t-test were conducted. following results have been come out. First, the pension beneficiary citizens showed higher participation of leisure and sport activities than non-beneficiary citizens. Second, the most favorable leisure type for both pension beneficiary and non-beneficiary citizens were spending time with friends. Third, pension beneficiary citizens showed higher satisfaction of leisure and sport activities than non-beneficiary citizens. Forth, pension beneficiary citizens participated more in walking and non-beneficiary citizens participated more in hiking. Fifth, pension beneficiary citizens showed to participate sport activities 3~4 times and non-beneficiary citizens F2 times a week and mostly in 30 minutes to 1 hour. Sixth, the pension beneficiary citizens showed to spend average 81,149.43 won and non-beneficiary citizens 59,857.02 won.

아민화된 다공성 및 비다공성 폴리스티렌 디비닐벤젠 음이온교환체의 성질

김동원,오제직,민태원,Dong Won Kim,Jae Jick Oh,Tae Won Min 대한화학회 1985 대한화학회지 Vol.29 No.3

비다공성 및 다공성 폴리스티렌 디비닐벤젠 공중합체를 합성하고, 이것을 클로로메틸화 한후, 메틸아민으로 아미노화하여 약염기성 음이온교환수지인, 50∼100mesh의 비다공성, N-APSTDVB와 다공성, P-APSTDVB를 만들었다. 합성한 이들 음이온교환수지를 적외선 흡수스펙트럼으로 확인하였다. 이들 음이온교환수지의 최대 이온교환용량은 4.86meq/g이었다. 다공성 폴리스티렌 디비닐벤젠 공중합체, P-APSTDVB의 세공용적은, 디비닐벤젠의 볼륨퍼센트를 30%로 하였을 때, X$_{diluent}$의 증가에 따라서 증가하였다. 또한 X$_{diluent}$의 양을 0.5로 일정하게 하였을때, P-APSTDVB공중합체의 세공용적은, 디비닐벤젠의 볼륨퍼센트가 증가함에 따라 증가하였다. 디비닐벤젠의 퍼센트를 8%로 일정하게 하고, X$_{heptane}$을 0.5로 하였을 때, 합성한 공중합체와 음이온교환수지의 세공용적은, P-PSTDVB >P-APSTDVB >N-PSTDVB순으로 감소하였다. 여러 농도하에서의, 여러종류의 알코올 수용액중에서의 N-APSTDVB음이온교환수지에 대한 붕산의 분포계수가, 또한 논의되었다. The non-porous and porous polystyrene divinylbenzene copolymers were prepared by the suspension polymerization method. The non-porous aminated polystyrene divinylbenzene, N-APSTDVB and the porous aminated polystyrene divinylbenzene, P-APSTDVB of 50∼100mesh size weakly basic anion exchanger were synthesized by chloromethylation followed by amination with methylamine. The functional groups of these synthesized anion exchangers were confirmed by their infrared spectra. The maximum capacity of these exchangers was 4.86meq/g. Pore volume and pore spectra were determined with a mercury porosimeter. The pore volume of P-PSTDVB increased with increasing X$_{diluent}$ at 30% of divinylbenzene. However, the pore volume of P-PSTDVB increased with increasing volume percent of divinylbenzene at constant mole fraction of diluent, X$_{diluent}$ of 0.5. The pore volume of synthesized copolymer and anion exchanger at 8% divinylbenzene and 0.5X$_{heptane}$ decreased as follows; P-PSTDVB 〉P-APSTDVB 〉N-PSTDVB. This result was attributed to the possibility that the pore volume were reduced by amination reactions. The distribution coefficients of boric acid on the N-APSTDVB anion exchanger in various concentrations of alcohol water solutions showed that as alcohol concentration increased, the distribution coefficients values decreased due to the reduced concentration of H$_2$BO$_3^-$.

이종망간의 상호연동 거이트웨이 시스템을 위한 내부고속연동망

김동원,신현식,류원,이현우,전경표,배현덕,Kim, Dong-Won,Sin, Hyeon-Sik,Ryu, Won,Lee, Hyun-Woo,Jun, Kyung-Pyo,Bae, Hyeon-Deok 한국정보처리학회 1997 정보처리논문지 Vol.4 No.2

본 논문에서는 다양한 이기종 망간의 상호 연동을 통한 개방형정보통신서비스를 제공하기 위해 게이트웨이시스(Gateway System)으로 개발되고 있는 대용량 통신처리 시스템의 내부 고속 연동망의 구조를 제시한다. 주요제원으로는 32*32 입출력 체널의 공유버스 스위칭 대역폭은은 640MBPS로써 평형상태에서 각 채널별 약 20Mbps 정도의 대연폭 할당이 가능하여 전화망 뿐만 아니라 고속의 ISDN 및 인터네트 서비스 연동이 가능하다. 고속 연동망은 주된 스위칭 기능을 담당하는 중재교환부, 각 입출력 채널을 구성하는 가입자 입출력부, 이들 상호 연결하는 백플레인버스로 구성이 되고, 신뢰성 향상기 위하여 부하 분담 방식의 이중화 구성이 가능하다.또한망정합모들의 구현을 용이케 하고 연동망 프로토콜을 처리하는 부하를 감소하기 위해 고속 연동망 프로토콜을 전담 처리 가입자노드 어댑터를 개발하였다. This paper proprses the architeecture of an interconnection network for Advanced Information Communi-cation Procssing System(AICPS)developde for prividing open information communication servies on a variety of heterogeneous networks.The proposed Interconnection network,called High Speed Swiching Fabric(HSSF),has been designed by a common bus.It can handile 32 i/O channels,each of which uses serial communication method using 100Mbps TAXI.The switching bandwidth of the common bus is 640Mvps.Each I/O channel can be alloted about 20Mbps bandwidth in steady state,and therefore it's sufficient bandwidth is able to interwork with ISDN and Internet services, as well as PSTN. HSSF is composed of the switching board assembly,the subscriber,I/O board assemly,and the backplane board assembly.An attached node takes in the network adapter board assembly to adapt the high speed interworking protocol.For reliability,HSSF is duplicated with load-sharing method.

골화성 근염의 세침흡인 세포학적 소견 - 1예 보고 -

김동원,이동화,Kim, Dong-Won,Lee, Dong-Wha 대한세포병리학회 1998 대한세포병리학회지 Vol.9 No.1

The aspiration cytologic finding of myositis ossificans is not well documented but similar to that seen in nodular fasciitis except less cellularity. Myositis ossificans is a reactive condition that is sometimes mistaken microscopically for extraosseous osteosarcoma. Cytologically, myositis ossificans may be distinguished from extraosseous osteosarcoma by the presence of uniform benign stromal cells composed of mature fibroblasts and osteoclastic giant cells. However, the differential diagnosis may be difficult in the early stage of this reactive and proliferative process. We recently experienced a case of myositis ossificans. The patient was a 67-year -old woman with painful swelling of the left index finger for one month. Simple x-ray finding showed a soft tissue mass with calcific center at middle phalanx of the left hand. Fine needle aspiration cytology revealed a few individual or clusters of spindle cells in dense eosinophilic stroma with osteoclastic giant cells. The spindle cells were uniform smooth-bordered, and oval nuclei with single small inconspicuous nucleoli, and elongated cytoplasm. The scattered individual cells had eccentric nuclei with one or two nucleoli and abundant, basophilic cytoplasm.

Effect of Carbon Dioxide and Fluorine from Soft Drinks on Teeth

Kim, Dong-Won김동원,Hong, Young-Gwan,Ryu, Hai-Il 공주대학교 과학교육연구소 2001 과학교육연구 Vol.32 No.1

탄산 음료 속에 Carbon Dioxide 와 Fluorine이 치아에 미치는 영향을 치아의 질량변화를 통하여 알아 보았다. 음료수 중 콜라 속에서 치아의 질량 변화가 가장 컸으며, 콜라 속의 Phosphorus의 양을 정량한 결과, 142 ppm 이었으며, Carbon trioxide와 Phosphorus가 치아에 영향을 주는 물질임을 확인할 수 있었다. 또한 Fluorine의 농도가 진한 경우, 치아의 질량변화에 영향을 주었다.

건설현장에 사용되는 가설기자재의 안전인증표시 개선방안 연구(I) : 이해관계자 인식 분석 및 표시내용

김동원,원정훈,박용규,임세종,Kim, Dong Won,Won, Jeong-Hun,Park, Yong Kyu,Lim, SeJong 한국안전학회 2017 한국안전학회지 Vol.32 No.4

This study examined the stakeholder cognition of the safety certification marking system by surveying manufacturers, lessors, and users. In addition, among various issues about safety certification marking systems, the improvement of safety certification marking contents was suggested in order to guarantee quality of temporary equipments. The results by statistical method show that it is necessary to increase of users' understanding about the safety certification marking system. In addition, the quality management system of temporary equipments should be introduced to control the actual condition that temporary equipments of various product companies are mixed in a site during removal and reuse processes. For detailed marking contents, it is recommended that a certification mark, an identification number, and the production year should be displayed and the manufacturer name could be selectively presented. Detail informations such as a safety certification number, a product company, a model type or name, a specification, a weight, a product number, and the location of a certification mark should be identified by the identification number.

FTIR-RA 분광법을 이용한 스테아르산 단분자막에서 분자구조의 온도의존성 고찰

김동원,박상래,쥰조 우메무라,사토시 다케다,다케시 하세가와,도오루 다케나카,이해원,Kim, Dong Won,Park, Sang Rae,Umemura Junjo,Takeda Satoshi,Hasegawa Takeshi,Takenaka Tohru,Lee Hai Won 대한화학회 1993 대한화학회지 Vol.37 No.6

물 표면 위의 스테아르산 단분자막을 은을 입힌 유리판에 이전시켜 1층, 3층, 9층 및 21층의 Langmuir-Blodgett(LB) 분자막을 제조하였다. 표면압은 30 mN/m 이었으며 FTIR-RA 분광법을 이용하여 31~72$^{\circ}C$에서 적외선 흡수 스펙트럼을 얻었다. $31^{\circ}C$에서 탄화수소 사슬이 보다 더 수직적인 배향을 나타내고 있었으며 1층의 경우에는 C = O의 피크가 관찰되지 않았다. 이는 은표면에서 이미지 이중극 효과나 금속염을 형성하기 때문으로 본다. 1층과 3층의 경우에는 스테아르산의 트란스 이성질체가 많고 21층의 경우에는 시스형이 많은 것으로 나타났다. 온도 변화에 대한 FTIR-RAS 측정에서 분자층의 수를 증가시키면 사슬의 녹는점이 높아졌으나 1층의 경우는 예외를 나타내는데 이는 1층의 경우 은기판과의 강한 상호작용에 의한 때문이다. 1-, 3-, 9-, and 21-Monolayer Langmuir-Blodgett(LB) films of stearic acid were deposited on silver-coated glass slides at the surface pressure of 30 mN/m. Fourier transform infrared(FTIR) reflection-absorption spectra (RAS) of these LB films were recorded at various temperatures from 31 to $72^{\circ}C.$ The spectra at $31^{\circ}C$ exhibited characteristic features of highly perpendicular orientation of the hydrocarbon chain. In the 1-monolayer LB film, the C=O stretching band was not observed, presumably due to the image dipole effect on the silver surface. In the 1-and 3-monolayer LB films, the trans isomer of stearic acid was prominent, but the cis isomer was dominant in the 21-monolayer LB film. FTIR-RAS measurements at an elevated temperature indicated that the chain melting temperature increases and approached to the bulk melting point with increasing the number of monolayer, except for the 1-monolayer LB film which has a higher melting temperature than the 3-monolayer film due to the strong interaction with the silver substrate.