冬壽의 出自로 본 高句麗의 낙랑군지배

이동훈(Lee, Dong-Hoon) 백산학회 2010 白山學報 Vol.- No.88

Main character of the Anak Tomb No.3, Dong-su is from unknown family in China, but he was charged with a top position where only elite worked as in Murong(慕容) regime. That was unusual, so this researcher called his background in question. As the result of analyzing various family names-related data, Dong-su was not from China but from Nakranggun. At that time, Chinese immigrants and original settlers who are Goguryeo’s descendants lived in Nakranggun, and Dong-su was also one of original settlers. Meanwhile, the history book reveals Dong-su’s birthplace as Yodong. When King Micheon of Goguryeo ruled Nakranggun(樂浪郡) in 313, among residents of Nakranggun, there were immigrants who moved to Yoseo in China and they settled themselves in Nakranggun that was newly established near to Geuksung(棘城). Besides, they were immgrated in Changryeogun(昌黎郡) and Yodonggun(遼東郡). As the result, Nakrang Han family received a new domicile of Changryeo Han family, and Nakrang Dong family was changed to Yodong Dong family, which was the reason that Dong-su was expressed as Yodong. For Goguryeo that subjected Nakranggun, controlling powerful families(豪族) who were main power of Nakranggun was the main point. Goguryeo carried through the Nakranggun governance by using the graded powerful family Dong(冬) to restrain Nakranggun large family Wang(王). They received administrative rights from the Goguryeo regime, but military rights were totally under Goguryeo. Han(韓) and Wang(王) families that were ruled like this became the sacrificial lamb of the reinforcement policy of kingship and received a blow after King Jangsu(長壽王) moved the capital from Kuknaesung to Pyeongyang. The fact was turned out in inscription remaining in China through the analysis of the study. As the result, they left Nakrang for China. After that, these two families weakened as much as their trace was not found in the history of the late Goguryeo. However, some people from Nakranggun who just followed Goguryeo’s rule played a important role after the late Goguryeo.

捻轉法이 竝行된 鍼刺戟 및 電鍼刺戟이 鎭痛效果에 미치는 影響

Park, Dong-Seok,Kim, Ji-Hoon,Min, Byung-Il,Oh, Soo-Myung 경희대학교 동서의학연구소 1999 INTERNATIONAL SYMPOSIUM ON EAST-WEST MEDICINE Vol.1999 No.1

Dong-Seok Park¹, Ji-Hoon Kim¹ and Byung-Il Min, Soo-Myung Oh,³¹Department of Acupuncture and Moxibustion, College of Medicine, ²Department of Physiology, College of Medicine, And ³East-West Medical Research Institute, Kyung Hee University,Seoul, Korea. Analgesic Effect of Manual Acupuncture and Electroacupuncture combined with Twirling Method. Proceeding of International Symposium on East-West Medicine Seoul. 187-200, 1999.-Twirling the needle (TN) is one of several needing methods frequently used for acupuncture in the oriental medicine. The present study was conducted to see if TN enhanced the antinociceptive effect produced by plain-or electroacupuncture in the rat tail flick test. Rats (Sprague-Dawley, 200-300g)lightly anesthetized with thiopental sodium(40mg/kg, i.p.) were used in the tail-flick test. The basal reaction time for tail-flick was 2 sec. For "plain" acupuncture(PA), a needle was inserted for 20 min into a Chock-samni (ST36) acupuncture point which (is located at the anterior tibial muscle and about 10mm below the knee joint). For electroacupuncture(EA), train-pulses(3 Hz,0.3-ms pulse width, 0.2-0.3mA) were applied to the inserted needle for the period of insertion. For combining TN with either PA or EA, TN was performed during the each acupuncture period. Two methods for TN were used; twirling 3 times for 1 second persisted for 1 min in every 5 mins(long-duration and long-interval;LDLI) and twirling 3 times for 1 second persisted for 10 sec in every 1 min(short-duration and short-interval;SDSI). PA and EA produced an increase in tail flick latency (TFL); peak increases were 21.3±5.1% and 42.1±17.3% of the pre-acupunture control, respectively, and occurred immediately after cessation of 20min-acupuncture. Performing TN combined with PA increased TFL more than PA itself by showing a greater peak increase in TFL when performed with a SDSI-TN than with a LDLI-TN(60.6±12.5% and 42.7±22.7% of the pre-acupuncture control, respectively). Performing TN combined with EA also increased TFL more than EA itself and a greater peak increase in TFL was observed with a SDSI-TN as compared to a LDLI-TN(77.5±13.8% and 67.3±14.0% of the pre-acupuncture control, respectively). These results indicate that TN enhances both PA-and EA-produced antinociception where an greater enhanced antinociception than a LDLI-TN. It is suggested that performing a SDSI-TN combined with EA seems to be one of the most effective ways to produce analgesia.

Effect of Electrochemical Hydrogen Charging Time on Hydrogen Embrittlement of the Hot-Rolled and Accelerated Cooling Treated API X70 Steel

Dong‑Su Bae,Un‑Bong Baek,Seung‑Hoon Nahm,Ilguk Jo 대한금속·재료학회 2022 METALS AND MATERIALS International Vol.28 No.2

This study investigated the effect of the hydrogen charging time on the hydrogen embrittlement of hot-rolled and acceleratedcoolingtreated API X70 steel by using the electrochemical hydrogen charging method. Tensile and V-notch Charpy impacttest were completed for the specimens of hydrogen charged for 0, 2, 4, and 10 h, and then microstructural observation wereperformed. The tensile and yield strength tended to decrease slightly and the total elongation started to decrease rapidly up to2 h charging time and then these gradually decreased with the hydrogen charging time. The post-uniform elongation increasedslightly after the holding time of 2 h due to the occurrence of two-step stress reduction phenomenon and its mechanismhas suggested. The effect of the hydrogen embrittlement on impact absorption energy according to the hydrogen chargingtime were also investigated. The fracture surface of the hydrogen charged ones are generally composed of cleavage fracturesurfaces. It was demonstrated that the external cracks were formed on the outside of tensile tested specimen and the externalshape of the fracture portion was fractured without large elongation at hydrogen charged specimens.

Complication rates in patients using absorbable collagen sponges in third molar extraction sockets: a retrospective study

Hoon Cho,Hwi-Dong Jung,Bok-Joo Kim,Chul-Hoon Kim,Young-Soo Jung 대한구강악안면외과학회 2015 대한구강악안면외과학회지 Vol.41 No.1

Objectives: The purpose of this study is to retrospectively evaluate the postoperative complication rates for absorbable type-I collagen sponge (Ateloplug; Bioland) use in third molar extraction. Materials and Methods: From January to August 2013, 2,697 total patients undergoing third molar extraction and type-I collagen sponge application in the Department of Oral and Maxillofacial Surgery at Yonsei University Dental Hospital (1,163 patients) and Dong-A University Hospital (1,534 patients) were evaluated in a retrospective study using their operation and medical records. Results: A total of 3,869 third molars in 2,697 patients were extracted and the extraction sockets packed with type-I collagen sponges to prevent postoperative complications. As a result, the overall complication rate was 4.52%, with 3.00% experiencing surgical site infection (SSI), 1.14% showing alveolar osteitis, and 0.39% experiencing hematoma. Of the total number of complications, SSI accounted for more than a half at 66.29%. Conclusion: Compared to previous studies, this study showed a relatively low incidence of complications. The use of type-I collagen sponges is recommended for the prevention of complications after third molar extraction.

중소규모 사업장 근로자의 직무스트레스로 인한 결근, 조퇴 현황과 한국형직무스트레스 하부요인과의 관련성

김정훈,박신구,김동현,김환철,임종한,이의철,이동훈,이지영 大韓産業醫學會 2009 대한직업환경의학회지 Vol.21 No.2

목적: 중소규모 사업장 근로자들의 직무 스트레스로 인한 결근, 조퇴의 현황과 한국형 직무 스트레스 하부 요인과의 관련성을 알아보고자 하였다. 방법: 중소규모 사업장 83곳 근로자들에 대해 한국형 직무스트레스요인 평가도구-단축형(KOSS-SF)과 사회 일반적 특성, 직업적 특정 및 직무스트레스로 인한 결근이나 조퇴 경험여부 등을 묻는 구조화된 자가 기입식 설문을 실시하였고, 응답한 4,350명에 대해 최종 분석을 시행하였다. 직무스트레스로 인한 결근, 조퇴와 한국형 직무스트레스 하부 요인들과의 관련성을 확인하기 위하여 로지스틱 회귀분석을 시행 하였다. 결과: 직무 스트레스로 인한 결근, 조퇴를 한 근로자는 남자에서 7%(196명), 여자에서 8%(113명) 로 조사되었고 한국형 직무 스트레스 하부요인과의 관련성에서는 남, 여 모두 직무요구, 관계갈등, 조직체계, 보상부적절, 직장문화 영역의 스트레스가 높은 군에서 통계적으로 의미있게 직무스트레스로 인한 결근, 조퇴율이 증가하였다. 결론: 중소규모 사업장 근로자들의 직무 스트레스로 인한 결근, 조퇴와 한국형 직무 스트레스 하부요인과의 관련성은 남자에서는 조직체계 영역이 가장 높았고, 여자는 직장문화 영역에서 가장 높은 관련성을 보였다. Objective: The aim of this study was to examine the actual conditions of absence and early leave due to job stress of 4,350 workers in 83 small and medium scale industries, and its relationship to job stress factors using Korean Occupational Stress Scale-Short Form (KOSS-SF). Methods: A structured self-reported questionnaire was used to assess each respondent's Sociodemographics, job stress, experience of absence and early leave due to job stress. Seven KOSS-SF domains of job stress were used. We estimated the relation of absence and early leave due to job stress and job stress factors using logistic regression analyses. Results: Absence or early leave due to job stress occurred in 7% of male workers and 8% of female workers. Multiple regression analysis revealed a significantly positive association job stress-related absence/early leave and job demand, interpersonal conflict, organizational system, lack of rewards and occupational climate. Conclusions: Absence and early leave due to job stress is significantly attributed to organizational System and lack of reward for men, and occupational climate and organizational system for women.

동리국악당의 건축음향특성에 관한 연구

이동훈(Dong-Hoon Lee),김재수(Jae-Soo Kim) 대한설비공학회 2013 대한설비공학회 학술발표대회논문집 Vol.2013 No.11

Pansori as a solo opera unique in the world is a sound art representing Korea which was registered in the worldwide intangible cultural heritage. Despite this fame and worth, it is in a situation that a special theater of pansori is almost none in Korea, and presently running performance halls are mostly old after their establishment and most of them should be remodeled. Although Dongri Korean classical music hall which was built in 1990 among them is small in scale, it has a unique type and worth as a representative special theater of Pansori. However, it has passed more than 20 years in its establishment and it is in a stage of remodeling the design in presence. The most important thing in special theaters of Pansori like Dongri Korean classical music hall is to secure acoustic performance proper to Pansori performances. In this point, this study measured and evaluated constructional acoustic performance aiming at Dongri Korean classical music hall which is in the stage of remodeling the design. Based on these data, to build the best domestic special theater of Pansori is the meaning of the study.

동결견(凍結肩) 환자의 동서협진 치료의 임상효과 비교연구 : 견관절 가동운동범위(ROM) 변화를 중심으로

남동우,김행범,양동훈,임사비나,김건식,이두익,이재동,최도영,이윤호 경희대학교 동서의학연구소 2006 東西醫學硏究所 論文集 Vol.2006 No.-

Objectives : To establish an effective collaborate medicine treatment of acupuncture and western medicine for treating frozen shoulder patients. Methods : 59 voluntary patients were randomly assigned to Eastern treatment group(E group, n=22), Western treatment group(W group, n=17) and East-West treatment group(EW group, n=20). The E group received acupuncture treatment on LI15, TE14, GB21 and Master Dong's acupuncture points, Shin-gwan and Gyun-joong, twice a week for 4 weeks. The W group received suprascapular nerve block, subacromial injection and trigger point injection, twice a week for 4 weeks. The EW group received acupuncture and injection treatment including nerve block. All groups were instructed to practice self exercise during their daily lives. Evaluations were made before treatment and after treatment based on the change in shoulder Range of Motion(ROM) and the patient's satisfaction concerning the treatment was measured by Visual Analogue Scale(VAS). The obtained data were analyzed and compared. Results : The patient's satisfaction scores were E group 5.67, W group 7.73 and EW group 7.67. The E group and the EW group showed significant improvement in abbduction, adduction and flexion(p<0.05). The W group showed significant improvement in adduction(p<0.05). Abduction significantly improved(p<0.05) in the EW group compared to E group and W group. Flexion also showed improvement in the EW group, but the difference among the 3 groups was statistically insignificant. The three group's difference of change in extension and adduction was insignificant(p>0.05). Conclusion : Acupuncture and nerve block alone significantly improved ROM in frozen shoulder patients. Also collaborate treatment of acupuncture and nerve block significantly improved ROM in frozen shoulder patients. But the difference of the three treatments were significant only for improving abduction(p<0.05).

원문 : 가상화재상황의 초고층 건물 진입에 따른 소방공무원의 생리학적 반응

유동훈 ( Dong Hoon Yoo ) 한국운동생리학회(구 한국운동과학회) 2014 운동과학 Vol.23 No.3

유동훈. 가상화재상황의 초고층 건물 진입에 따른 소방공무원의 생리학적 반응. 운동과학, 제23권 제3호, 267-274, 2014. 본 연구는 가상화재상황의 초고층 건물 진입에 따른 소방공무원의 생리학적 반응을 알아보고자 시도하였다. 남자 소방공무원 8명(구조대원 6명, 화재 진압대원 2명, 31.9±4.4세)을 대상으로 초고층 건물 진입(HB: entry of high-rise building), 가상화재상황의 초고층 건물 진입(SF: simulated fire-fighting), 비교처치(CON: gym suit)의 3가지 처치를 실시하였다. 본 연구의 결과는 다음과 같다. 첫째, 가상화 재상황의 초고층 건물 진입에 따른 산소섭취량은 소방장비착용과 비교처치와 유의한 차이가 나타났다. 둘째, 심박수는 처치와 시기의 주 효과, 처치와 시기의 상호작용효과 모두 유의한 차이가 나타났으며, 3, 9, 12, 15분에서 HB와 SF는 CON보다 높게 나타났다. 셋째, 심부온도는 시기의 주 효과와 상호작용효과에서 유의한 차이가 나타났지만, 처치의 주 효과는 유의한 차이가 없었으며, 12, 15분에서 SF는 HB와 CON보다 높게 나타났다. 넷째, 피부온도는 처치와 시기의 주 효과, 처치와 시기의 상호작용효과 모두 유의한 차이가 나타났으며, 3, 6, 9, 12, 15분에서 SF는 HB와 CON보다 높게 나타났다. 다섯째, 운동자각도는 처치와 시기의 주 효과, 처치와 시기의 상호작용효과 모두 유의한 차이가 나타났으며, 6, 9, 12, 15분에서 SF는 CON보다 높게 나타났다. 본 연구는 초고층 건축물 가상화재상황에서 소방 활동 시 생리학적 변화에 대한 객관적인 자료를 제시하고자 하였다. 추후 대규모 소방공무원들을 대상으로 화재상황에서 안전한 임무 수행을 위한 체력의 기준이 제시되어야 한다고 사료되며, 다양한 소방 활동 임무와 생리학적 변인에 관련된 연구가 이루어져야 할 것이다. Yoo, Dong-Hoon. Physiological Response in Accordance with High-Rise Building of Simulated Fire-Fighting in Fire-Fighters. Exercise Science, 23(3): 267-274. 2014. The purpose of this study was to investigate fire-fighters` physiological response in case of simulated fire-fighting of high-rise building. Eight male fire fighters (6 rescue workers, 2 fire suppression workers; 31.9 4.4 yrs) participated in this study. Each participants performed under the three conditions (HB: entry of high-rise building, SF: simulated fire-fighting, CON: gym suit). The results were as follows: First, oxygen consumption was significantly different between SF and CON. Secondly, heart rates showed difference in both main effect and interaction effect of treatment and time. HB and SF were higher than CON at 3, 9, 12, and 15 min. Thirdly, tympanic temperature showed significant difference in main effect of time and interaction effect of treatment and time. SF was higher than HB and CON at 12, 15 min. Fourth, skin temperature showed difference in both main effect and interaction effect of treatment and time. SF was higher than HB and CON at 3, 6, 9, 12, and 15 min. Lastly, rating of perceived exertion showed significant difference in both main effect and interaction effect of treatment and time. S F was higher than CON at 6 , 9, 1 2, and 1 5 min. Physical standard of fire-fighters based on this study will be suggested in order to provide the guideline for their job safety. Further research on physiological variables during various fire-fighting tasks should also be carried out for more systematic physical guideline to enhancing fire-fighters` job safety.

Prediction of Retained Austenite Fraction in Quenching-and-Partitioning (Q&P) Steels Using the Gibbs Energy Balance Approach

Seong Hoon Kim,Ji Hoon Kim,Jae Hoon Lee,Dong‑Woo Suh,Jae Sang Lee 대한금속·재료학회 2022 METALS AND MATERIALS International Vol.28 No.9

Prediction of retained austenite fraction is quite important in designing advanced high strength steels since retained austeniteis the source of transformation-induced plasticity. The present study investigates the phase constitution of a medium-carbonQ&P steel by comparing various approaches to the transformation stasis of bainitic ferrite and applying them to the partitioningprocess. Among them, the modified GEB approach gave the best agreement with the experimental observation, includingthe effects of heat-treatment condition and chemical composition on phase constitution. This indicates phase transformationduring partitioning can be effectively described by the physics of Gibbs energy balance approach.

鴨蛋子의 抗癌活性 및 抗轉移 效果에 關한 硏究

李東勳,金聖勳,金東熙 대전대학교 한의학연구소 2002 한의학연구소 논문집 Vol.10 No.2

To evaluate the antitumore activity and antimetastatic effects of Bruceae Frucuts(BF), studies were done experimentally. The results were obtained as follows : 1. In cytotoxicity aginst A549, SK-MEL-2, MCF-7 and XF498 cell concentration inhibiting cell growth up to below 50% of control was recognized at 25㎍/㎖, so it showed stronger cytotoxicity against HCT15 cell than another cancer cell. 2. In Inhibitory effect on activity of DNA topoisomerase-Ⅰ, the IC_50 was shown 10-50㎍/㎖ of BF. 3. The T/C% was 143.4 in BF treated group in S-180 bearing ICR mice. 4. The concentration inhibiting adhesion of A549 and SK-OV-3 to complex extracellular matrix up to below 30% of control was recognized at 1㎍/㎖ of BF. 5. In pumonary colonization assay, a number of colonies in the lungs were decreased significantly in BF treated group as compared with control group. These results suggested that BF extracts might be usefully applied for prevention and treatment of cancer.