데드밧데리의 이해 및 적용사례 고찰

김광휘(Kwang-Hwi Kim),박영호(Yeong-Ho Park),박성호(Seong-Ho Park),장경현 한국철도학회 2015 한국철도학회 학술발표대회논문집 Vol.2015 No.10

국내철도차량에는 아직 데드밧데리라는 개념이 생소하게 다가올 지 모르지만, 중국, 그리스 미국 등 해외철도차량에서는 데드밧데리 시스템이 보편적으로 적용되고 있다. 데드밧데리는 밧데리 방전으로 인해 차량 기동 불능 시, 가선을 직접 받아 컨버팅을 통해 제어전원레벨까지 전원을 낮추어 일시적으로 보조전원장치에 전원을 공급하여 정상기동 시킴으로써, 밧데리가 충전이 가능하게 하도록 하는 장치를 말한다. 본 논문에서는 데드밧데리를 사용하는 해외전동차의 사례를 들어 데드밧데리의 동작원리와 제어방안에 대해서 고찰하고자 한다. Domestic rail vehicles are not familiar with the concept of a dead battery. But China, Greece, USA and overseas rail car has a dead battery system. Dead battery is activated when the vehicle is not possible due to battery charge, the power received by the power supply directly to the auxiliary power unit normal start, which means the device is a battery to be charged.

돌발성 난청의 침치료에 대한 최근 임상 연구 동향

김지원,정희경,이주영,김광휘,김태연,이태걸,김동은,Kim, Ji-Won,Jeong, Hu-Gyeong,Lee, Joo-Young,Kim, Kwang-Hwi,Kim, Tae-Yeon,Lee, Tae-Geol,Kim, Dong-Eun 대한한방안이비인후피부과학회 2017 한방안이비인후피부과학회지 Vol.30 No.4

Objectives : The purpose of this study is to investigate recent clinical studies on the effect of acupuncture on hearing loss. Methods : Based on the PubMed search with the key search terms of 'hearing loss, acupuncture', dated from 2004 to 2017, 1 controlled trials, 3 case reports and 3 case series was found, and were analyzed for this study. Results : 1. The most commonly used acupoints were Shuaigu(GB8) and Fengchi(GB20). 2. The most commonly used meridians were the du channel, the gall bladder meridian of foot-shaoyang, and the triple bunner meridian of hand shaoyang. 3. Acupuncture treatment was effective for conductive and sensorineural hearing loss, especially sudden sensory neural hearing loss. 4. More clinical studies are needed to prove the effectiveness of the acupuncture on hearing loss. To be more objective on the study results, we can measure auditory brainstem response for hearing loss after acupuncture treatment.

요추 추간판 탈출증 환자의 한의치료 후 디스크 흡수율 비교 및 흡수에 영향을 주는 요인 분석 연구

김용현 ( Yong-hyeon Kim ),이주영 ( Ju-young Lee ),김광휘 ( Kwang-hwi Kim ),김태연 ( Tae-yeon Kim ),이태걸 ( Tae-geol Lee ),이상운 ( Sang-woon Lee ),추희영 ( Hui-yeong Chu ),정희경 ( Hui-gyeong Jeong ) 한방재활의학과학회 2018 한방재활의학과학회지 Vol.28 No.4

Objectives The purpose of this study is to analyze the effects of Korean Medicine treatment on lumbar disc herniation (LDH) and predictive factors associated with disc resorption by magnetic resonance imaging (MRI). Methods A retrospective study was carried out in 79 lumbar disc herniation patients who had visited Haeundae Jaseng Hospital of Korean Medicine. Patients' diagnosis was based on MRI. MRI was performed on two or more occasions and patients were received Korean Medicine treatment within the period. The volume of each herniated disc was measured three-dimensionally and patient characteristics, interval between MRIs, herniated disc level, disc herniation type, disc migration, intactness of posterior longitudinal ligament (PLL), initial volume of herniated disc, modic change, disc resorption rate were statistically analyzed. Results The mean volumes of herniated discs before Korean Medicine treatment and after Korean Medicine treatment were 1,547.81±598.15 mm3 and 947.06±335.28 mm3, respectively. The mean resorption rate was 35.7±16.3%. Disc extent, intactness of PLL and initial volume of herniated discs were significantly correlated with resorption rate (p=0.003, p=0.001 and p=0.024, respectively). Conclusions Korean Medicine treatment is an effective conservative treatment for lumbar disc herniation. Factors such as disc migration, intactness of PLL, initial volume of herniated disc have a significant association with disc resorption rate. (J Korean Med Rehabil 2018;28(4):33-41)

편두통의 침 치료에 대한 임상 연구 동향 분석 - 2012년도 이후 Pubmed 검색 중심으로

최기훈,김은지,권오훈,김광휘,김태연,이태걸,Choi, Ki-hoon,Kim, Eun-ji,Kwon, Oh-hoon,Kim, Kwang-hwi,Kim, Tae-yeon,Lee, Tae-geol 대한한방내과학회 2018 大韓韓方內科學會誌 Vol.39 No.2

Objective: To compare recent domestic and overseas research trends about acupuncture therapies on migraines. Method: Case reports and randomized controlled trials were searched via Pubmed. Searches were limited to publications between 2012 and 2017. Results: Four case reports and twelve randomized controlled trials were searched from Pubmed. Research showed that acupuncture therapies are more significantly effective than other therapies, such as sham acupunctures and Western medicines. Conclusion: There has been more active overseas research about acupuncture therapies on migraine compared to domestic studies. To examine the efficacy and suitability of acupuncture therapies on Koreans with migraines, domestic studies and research should be conducted more actively.

상부요추와 하부요추 단분절 추간판 탈출증 환자의 임상적 특성과 한방치료 효과 비교연구

이주영 ( Ju-young Lee ),김용현 ( Yong-hyeon Kim ),김광휘 ( Kwang-hwi Kim ),김태연 ( Tae-yeon Kim ),이태걸 ( Tae-geol Lee ),이상운 ( Sang-woon Lee ),추희영 ( Hui-yeong Chu ),정희경 ( Hui-kyeong Jung ),정범환 ( Bum-hwan Jung ) 한방재활의학과학회 2018 한방재활의학과학회지 Vol.28 No.4

Objectives Upper lumbar disc herniation (LDH) (L1/2, L2/3) has specific anatomical characteristics and different outcome after conventional treatment compared to lower LDH (L3/4, L4/5, L5/S1). The purpose of this study was to compare the clinical features and effects of korean medical treatment of upper LDH between lower LDH. Methods We retrospectively reviewed the clinical data collected from 121 patients who was had admitted at the Haeundae Jaseng Hospital of Korean Medicine from June 1st, 2014 to August 31th, 2018. The patients who had treated at L1/2, L2/3 level LDH were grouped and compared with those treated at the L3/4, L4/5, L5/S1 level. We reviewed the patient characteristics such as age, the positive rate of Straight Leg Raise Test (SLR test), the presence or absence of previous lumbar surgery. Numeric Rating Scale (NRS) and Oswestry Disability Index (ODI) were evaluated at adimission and discharge. Results Mean age was significantly higher at upper LDH group and positive rate of SLR test was higher at lower LDH group. There was no significant difference of gender and previous lumbar surgery between two groups. Each group had a significant improvement of NRS, ODI scores. But between two groups, there was no significant difference of NRS, ODI scores. Conclusions Upper LDH group was older than lower LDH group. SLR test was useful tool to exclude upper LDH. Korean medical treatment was significantly effective to both upper and lower LDH groups. Further well designed prospective comparative studies are needed. (J Korean Med Rehabil 2018;28(4):43-50)

열차행선안내게시시스템 개선방안 연구

윤인영(Yoon In-Young),여용주(Yeo Yong-Joo),김광휘(Kim Kwang-Hwi),김호창(Kim Ho-Chang) 한국철도학회 2007 한국철도학회 학술발표대회논문집 Vol.- No.-

Urban railway system that leads the urban public transportation enables the passengers to use the subway system safely and conveniently by indicating the destination of, status of approach of and other information on train through Train Destination Equipment(TDE), which is one of the important passenger services. The existing system is composed of Host Station Equipment(HSE) and operator panel that receives necessary input on train information from Total Traffic Control System(TTC), Local Station Equipment(LSE) that controls Train Destination Indicator(TDI) installed at each station, and Train Destination Indicator that ultimately displays train information to the passengers using the train system. This study aims to realize stabilized and reliable announcement system for destination of train by considering processing procedure and method of expression of inputted information of the existing system of notification of announcement of destination of train that can be applied in the RFID, which is the base technology of USN for which service expansion is easy, and to realize system that considers interface with USN and expandability with other facilities in the future.

카드뮴에 중독된 토끼의 신장 기저막소포에서 Succinate 이동에 대한 동력학적 연구

김광휘,박양생 고신대학교 의학부 1992 高神大學校 醫學部 論文集 Vol.8 No.1

카드뮴이 신장에 존재하는 Krebs cycle 중간대사물 이동계에 미치는 영향을 조사하기 위하여 3주 이상 체중 kg당 3mg의 카드뮴을 토끼에게 매일 피하주사하여 카드뮴 중독을 유발하였다. 그 결과 뚜렷한 당뇨를 보인 토끼에서 분리한 기저막소포(BLMV)를 이용하여 succinate 이동을 조사한 결과 근위세포관 기저막의 Na^(+)-dependent ¹⁴C-succinate( 또는 ¹⁴C-citrate)이동이 심하게 저해되었는데, 동력학적 분석을 퉁하여 이는 Vmaxcl의 감소와 Km치 증가의 결과임을 알 수 있었다. 이러한 결과는 신장의 근위세뇨과 기저막에 존재하는 Na^(+)-succinate cotransport system의 기능이 카드뮴 중독 시 저해되는 것은 유효 운반체의 숫적 감소 뿐만 아니라 운반체의 기질친화력이 감소되기 때문임을 나타낸다. Changes in transport kinetics of succinate were studied in renal basolateral membrane vesicles(BLMV) isolated from cadmium-into-xicated rabbits. Cadmium intoxication was induced by subcutaneous injections of CdCl_(2) at a dose of 3㎎/㎏·day over 3 weeks. Basolateral membrane vesicles were prepared from renal cortex by Percoll gradient centrifugation. Cadmium intoxication resulted in marked attenuation of Na^(+)-dependent transport of succinate in basolateral membrane vesicles, and this was due to reduction in Vmax and to increase in Km. These results indicate that cadmium intoxication impairs the Na^(+)-_succinate cotransport system in the basolateral membrane of renal proximal tubular cells.

필사본들을 통해 본 노틀담 초기의 트로프와 오르가눔

김광휘 한국음악학회 1997 한국음악학회논문집 음악연구 Vol.14 No.1

The Christian liturgy has developed in a variety of different ways, especially since the 4th century, when the Roman empire adopted a new, positive attitude toward Christianity. During the 8th and 9th centuries, Christian culture reached a climax with the Carolingian renaissance, which marks a golden age of the liturgy and its music. Until the 8th century, the Christian liturgy maintained a rather objective and impersonal mode of expression. Thereafter liturgical music enlarged its range of expression in several ways; new non-biblical texts were added to the liturgy, the chant itself took on new, more elaborate forms, and polyphonic performance was practised. Troping (the addition of new verses or musical phrases to older chants) became a regular part of the liturgy from this time. From the 9th century onward various types of organum, that is polyphonic singing, are recorded, one of its greatest periods of flowering being the Notre-Dame era in the second half of the 12th and the beginning of the 13th century. This study is concerned with the music of the Notre-Dame School and especially the composer Magister Leoninus and his historical achievement, the facts known about his life in Paris and the 'Magnus liber organi', that is the music attributed to him by the writer Anonymous IV. Using the manuscripts F and W₁, which contain his organs, together with the manuscripts Paris Tat. 1112 and Provins 12, which preserve the tropes of this time, I have tried to illuminate the types of musical structure and methods of composition in this special period. In particular, four examples of music of this time have been selected from the Third Mass of Christmas Day, each of which illustrates a different aspect of musical practice. The first example gives the Introit 'Puer natus est' with added trope verses 'Gaudeamus' The second example shows the Kyrie with trope verses 'Cunctipotens genitor', where texts were simply added to a melismatic Kyrie melody; here the French musicologist Marcel Pe´re`r s has added simple parallel organum, according to the typical method of the time, which is useful for this study. The third example, the Gradual 'Viderunt omnes', has melismatic organum upon the chant melody, especially at the syllable 'om-', which has as many as 65 notes in the upper voice against just one in the chant: consonances with the chant (3rd, 5th, 6th and 8ve) are formed at all important points. The Florence manuscript(F) preserves eleven two-voice settings of 'Benedicamus Domino' for the office. These pieces might also be used on special feast days such as Christmas or Easter Day at the end of Mass instead of the usual 'lte missa est'. So the music of the 'Benedicamus' forms my fourth example of music for Mass. This Benedicamus setting is a particularly important part of this study because of the section in modal rhythm at 'Domino'. I have transcribed this part of the music in mensural notation, a new and very valuable exercise. It is my hope that the transcriptions in the Appendix will assist the reading of the manuscripts.