침 치료가 오십견(五十肩) 환자의 적외선 체열촬영에 미치는 영향

김건형,이로민,남동우,김종인,임사비나,이두익,최도영,이윤호,이재동 경희대학교 동서의학연구소 2006 東西醫學硏究所 論文集 Vol.2006 No.-

Objectives : To observe the effect of acupuncture treatment on Digital Infrared Thermographic Imaging(DITI) in frozen shoulder patients. Methods : 17 voluntary patients received acupuncture treatment on LI15, TE14, GB21 and Master Dong's acupuncture points, Shin-gwanand Gyun-joong, twice a week for 4 weeks. The patients were instructed to practice self exercise during their daily lives. Evaluations were made before treatment, after 1 week of treatment, after 2 weeks, 3 weeks and after 4 weeks of treatment. Constant Shoulder Assessment(CSA), Shoulder Pain and Disability Index(SPADI), Range of Motion(ROM) and the patient's satisfaction concerning the treatment was measured by Visual Analogue Scale(VAS). DITI was measured before treatment and after 4weeks of treatment. The obtained data was analyzed. Results : CSA, SPADI, VAS, adduction and extension showed significant(p<0.05) improvement. Abduction and flexion both improved after 4 weeks of treatment, but the improvement was statistically insignificant(p>0.05). DITI showed improvement but the improvement was insignificant(p>0.05). Conclusion : 4 weeks of acupuncture treatment significantly improved CSA, SPADI, VAS, adduction and extension in frozen shoulder patients(p<0.05). The improvement of abduction and flexion after 4 weeks of acupuncture treatment was insignificant(p>0.05). DITI results improved after 4 weeks of acupuncture treatment. But the change of thermal difference was insignificant(p>0.05).

마늘 組織 培養에 關한 基礎的 硏究

李愚升,盧恩燦 慶北大學校 1980 論文集 Vol.30 No.-

This experiment was carried out to compare basic media (MS, LS, Wang medium), various agar concentrations (0.6, 0.8, 1.0%) and investigate on the effect of cold and room temperature storage (for 15, 30, 45, 60 days after harvest) in garlic tissue culture. The results were as follows: Shooting, rooting and bulbing were the best on MS medium and LS, Wang in turn. Required period for bulbing was more or less hastened on Wang medium. Higher concentration of agar was suitable for shooting and rooting, while lower concentration of agar formed more roots than higher concentration. Differentiation and growth of the garlic storaged by cold temperature for 60 days was more desirable than that of room temperature.

9 스위치 행렬변환기의 구현 및 동작특성 해석

盧澈均,金佑鉉,李武永 慶一大學校 1997 論文集 Vol.14 No.2

The dynamic characteristics of nine-switch matrix converter(NSMC), under the control strategy proposed by Venturini, is evaluated by simulations and experiments. Experiment sets are composed of the CPU part including TMS320C30, gate driver part, power supply part, A/D converter part and switch part. In this experiments, switching signal is generated in the real time by using TMS320C30. Switching frequency is increased by using 8253 counters which handle the some part of TMS320C30's calculation. In the experiment results, we can verify that the amplitude, frequency and power factor are controlled, AC-AC converter can be made up single module, and the volume of motor driving part can be reduced by excluding DC link. This experiment sets have error, which is calculation error of TMS320C30, and delay error of the counter. Furthermore researches should be focused on the minimization of these error.

후천성 면역 결핍증 환자의 혀에 발생한 거대세포바이러스(CMV : cytomegalovirus) 감염

송노헌,이종호,정필훈,김명진,김수경,남일우,김종원,백세미,홍삼표 大韓顎顔面成形再建外科學會 1998 Maxillofacial Plastic Reconstructive Surgery Vol.20 No.1

靜止形 3相 無停電 電源 裝置用 電壓源 인버터의 出力 波形 改善

柳喆魯,李公熙,韓宇勇 全北大學校 1994 論文集 Vol.37 No.-

Uninterruptible power supply[UPS] systems are extensively used for electrical support of computers, communications and other critical systems. At present, most of all inverters used in UPS system are voltage source inverter[VSI]. But the output voltage of the UPS must be a sinusoidal wave, therefore a filter consisting of inductors and capacitors eliminates the harmonics involved in the output voltage of VSI. It is important for making UPS more compact to make the filter smaller. For this purpose, the multi step VSI for UPS systems is presented in this paper. The proposed system operates as like 24 and 36 step VSI by adding the tap changing auxiliary circuit which consists of an auto transformer and several switching elements to the double connected 12 step VSI. The basic theories of the proposed inverter system for analyzing the output waveforms are described. And to optimize the effectiveness of the harmonic reduction, the optimum turn ratio and tap changing control angle of auto transformer are decided by simulation and its validity is verified with experiment.

천추 갈색종양(Brown tumor)으로 발현된 부갑상선 기능항진증 1예

홍우정,구본정,이재민,한상우,이효진,나소영,노흥규,김영건,송민호 충남대학교 의학연구소 2003 충남의대잡지 Vol.30 No.2

부갑상선 기능항진증에 의한 골병변으로 갈색종양이 있다. 갈색종양은 주로 장골을 침범하고 척추골에서의 발생은 매우 드물다. 국내의 보고에서 갈색종양의 장골 침범은 있었으나, 척추골에서의 발생은 보고된바 없다 .저자들은 부갑상선 기능항진증으로 인하여 척추골의 천추에 발생된 갈색종양 1예를 경험하였기에 문헌고찰과 함께 보고하는 바이다. The bony involvement in primary hyperparathyroidism present as browm tumor or osteitis fibrosa cystica and lead to pathologic fracture. Brown tumor commonly involve long bone such as femur, tibia, fibula, humerus, and radius. Brown tumor of axial skeleton is a rare entity. Previously reported case that involve axial skeleton still not present. We report a 47-year-old male patient that he has a hyperparathyroidism presenting as brown tumor involving sacrum.

그레이브스병에서 방사성 요오드 치료에 따른 갑상선 자극 호르몬 수용체 결합억제 면역글로불린(Thyrotropin Binding Inhibitory Immunoglobulin, TBII)의 변화

조영석,권기현,이준철,나소영,이효진,홍우정,이유선,김군순,송민호,김영건,노흥규 충남대학교 의학연구소 2003 충남의대잡지 Vol.30 No.2

Prediction of thrapeutic response to radioiodine in Graves' disease is poorly understood. Although thyrotropin binding inhibitor immunoglobulin(TBII) level is a strong index for relapse after antithyroid drug medication, conflicting results are reported regarding its prognostic significance in Graves' disease treated with RAI. This study is dengned to evaluate possible relationship between post-treatment hypothyroidism and TBII in Graves' disease treated with RAI. Fourty two patient with Graves' disease after radioiodine treatment were studied retrospectively. The subject were divided into hypothyroid group and euthyroid or hyperthyroid group. We evaluated the association of hypothyroidism and TBII with radioiodine treatment dose. The mean age of hypothyroid group was 48±11 years and euthyroid or hyperthyroid group was 47±12 years. There was no difference in two groups. And there was no significant difference in post- treatment TBII between two groups(49.9±28.5%, 29.9±14.3%, p-value >0.05). The treatment-dose had no influence on post-treatment thyroid state. Euthyroid or hyperthyroid group was done with 13.6±6.9mCi and hypothyroid group was 17.0±10.4mCi(p-value > 0.05). TBII had no prognostic significance on long-term hypothyrodism in Graves' disease treated with radioiodine. And, treatment-dose had no influence on post-treatment thyroid state.

양성 갑상선 결절에서의 무수 알코올 치료 효과

김도희,나소영,이효진,홍우정,김군순,조영석,구본정,송민호,김영건,노흥규 충남대학교 의과대학 의학연구소 2002 충남의대잡지 Vol.29 No.1

목적 : 양성 갑상선 결절 환자에서의 PEI의 치료효과 및 부작용을 알아보고자 하였다. 방법 : 양성 갑상선 결절 환자 88명을 대상으로 초음파 소견에 따라 낭종성 결절, 복합성 결절, 고형성 결절 등 세 그룹으로 분류후 전체 및 각각에 대한 PEI의 치료효과 및 부작용을 조사하였다. 결과 : 양성 갑상선 결절 환자 88명을 PEI로 치료후 결절의 크기가 50%이상 감소한 경우는 전체 환자중 77.2%이었고 각 결절별로 살펴보면 고형성 결절에서 52.6%, 복합성 결절에서 72.4%, 낭종성 결절은 92.5%이었다. 부작용은 동통, 결절내 출혈, 감염, 결절의 누출등이 있었으나 대부분 무증상이었다. 결론 : PEI는 양성 갑상선 결절 환자증 적응증을 잘 살펴 고려해 볼 수 있는 치료법이라 생각되며 특히 낭종성 결절 환자에서 주사기에 의한 흡인후에 재발한 경우 일차적인 치료로 PEI를 고려해 볼 수 있겠다. Ultrasonography(US)-guided percutaneous ethanol injection (PEI) has been performed for the treatment of autonomous functioning thyroid nodules, thyroid cysts, & cold thyroid nodules. The author studied the efficacy of PEI in the treatment of benign cold thyroid nodules both solid and cystic (complex & pure). Eighty-eight euthyroid outpatients (age:44.2±13.9years, 75 women and 13 men) with benign cold thyroid nodules or simple thyroid cysts (69 with a single nodule and 19 with a prominent nodule within multinodular goiter) were includied in this study. After PEI, each subtype of thyroid nodules was divided into three groups in according to volume reduction complete response (90% or more of volume reduction), partial response (50% or more of reducton but below 90%), and failure (below 50% or increase in size) group. Overall response rates of PEI for benign thyroid nodules were complete 45(51.1%), partial 23(26.1%), failure 20(22.7%). In 20 cold solid nodules, complete response was observed in 6(30.0%), partial response in 5(25.0%), and failure in 9(45.0%). In 28 complex cysts, complete response was observed in 8(28.6%), partial response in 12 (42.9%), and failure in 8(28.6%). In 40 pure cysts, complete response was observed in 31(77.5%), partial response in 6 (15.0%), and failure in 3 (7.5%). Side effects comprised pain 8 (9.2%), intranodular bleeding 13 (14.6%), extracapsular leakage 1(1.1%), infection 1 (1.1%), increased size l(1.1%), and none 64(72.7%). PEI may prove a safe & effective tool for the therapy of cold thyroid nodules in selected cases and may be the treatment of choice of recurrent thyroid cysts. However, further investigation involving a larger number of patients and a longer follow-up is needed.

종골 골절 치료에 있어서의 전산화 단층 촬영의 유용성

김학준,하권익,윤정로,심재익,김택선,김영배,이우승,최재혁 대한골절학회 2003 대한골절학회지 Vol.16 No.4

Post-assembly modification of polymeric composite membranes using spin drying for fuel cell applications

Lee, Kyung Ah,Yoon, Ki Ro,Kwon, Sung Hyun,Lee, Kyung Jin,Jo, Sunhee,Lee, Ju Sung,Lee, Kwan-Young,Lee, Seung Woo,Lee, Seung Geol,Kim, Jin Young The Royal Society of Chemistry 2019 Journal of materials chemistry. A, Materials for e Vol.7 No.13

<P>Self-assembly of inter- and intraphases between the ionomer membrane and mechanical reinforcements in reinforced polymeric composite membranes is of great interest in both physics and chemistry, particularly for proton exchange membrane fuel cell (PEMFC) application. One of the greatest challenges is to obtain an optimally structured polytetrafluoroethylene (PTFE)-reinforced perfluorosulfonic acid (PFSA) composite membrane <I>via</I> solution processing. For high- performance and durable PEMFC applications, the self-assembly of interphases of the ionomers/reinforcements and intraphases of the ionomers in the composite PEM needs to be carefully tailored. Here, we show that post-assembly modification of a PTFE/PFSA composite membrane using a spin-drying method can significantly improve fuel cell performance and reliability. The forced assembly of PFSA ionomers during spinning results in greater infiltration yields into the porous PTFE media. In this way, spin-drying post-treatment results in lower gas crossover and improved mechanical durability. This process also yields larger regions of ionic clusters, which facilitate proton conduction at low relative humidity, affording higher fuel cell currents and greater efficiency.</P>