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한방병원 응급실에 내원한 근골격계 환자에 대한 임상적 분석
정호석,조재희,이효은,이한,김은석,한경완,방성필,유인식,Jung, Ho-Suk,Cho, Jae-Hee,Lee, Hyo-Eun,Lee, Han,Kim, Eun-Seok,Han, Kyung-Wan,Bang, Sung-Pil,Yoo, In-Sik 척추신경추나의학회 2009 척추신경추나의학회지 Vol.4 No.2
Objectives : By recording basic data of musculoskeletal patients visiting the emergency room of an oriental medicine hospital. we can understand their characteristics and gain better insight about them. Method : We performed a retrospective study of 551 patients who visited the emergency room of an oriental medicine hospital, from November 1,2008 to October 31, 2009. Result : 1. Of 551 total patients, the male to female ratio was almost same and the 3rd decade of life was the peak age group. 2. The majority of patients visited emergency room between 10:00 and 24:00(midnight). 3. Most patients visited on a Saturday or Sunday. 4. By monthly distribution, the patients increased slightly during January, May and October. 5. The majority of patients visited the emergency room within 24 hours of onset. 6. The patients were categorized as follows : lumbar sprain 66.06%, cervical sprain 16.25%, ankle sprain 9.04%. 7. Admission rate was 21.96%. Conclusion : Assuming that this research will continue adding patient's data continuously, this work will help up to understand the features of musculoskeletal patients who visiting the emergency room of the oriental medicine hospital.
고온 계측 열화상 시스템 구현을 위한 복사에너지 필터링 연구
윤석태(Seok Tae Yoon),조용진(Yong Jin Cho),정호석(Ho Seok Jung) 한국비파괴검사학회 2016 한국비파괴검사학회지 Vol.36 No.6
선박 건조과정에서 이면부의 도장손상은 용접과정에서 과도한 입열량(heat input)에 따른 전도의 영향으로 손상 방지를 위해서는 용접온도 계측에 의한 적절한 입열량 제어가 필요하다. 온도 계측에는 접촉식, 비접촉식 방법이 있으며 열화상 시스템은 대표적인 비접촉식 방법이다. 하지만 일반적인 열화상 시스템의 탐지센서(detector)는 고온물체에서 방출되는 복사량(radiant quantity)이 과도하면 백화현상(saturation)으로 인해 온도계측이 불가능해진다. 따라서 본 논문에서는 열화상 시스템에 집속되는 과도한 복사량을 차단하기 위해 중성밀도필터(neutral density filter)를 결합하여 고온 물체의 온도를 3000 ℃까지 정량적으로 계측하기 위한 복사에너지 필터링을 연구하였다. In a shipbuilding process, thermal damage to the ship structure at the rear end results from an excessive heat input and conduction during welding process. To prevent such damage, appropriate control of the heat input, based on welding temperature measurement, is required. For temperature measurement, contact and non-contact methods are available; the thermography system is a popular non-contact temperature measurement. When the intensity of radiation from a high-temperature object is excessive, however, detecting the sensors of ordinary thermography systems leads to an inability in measuring the temperature due to saturation. Hence, this study suggests use of a neutral density filter that prevents an excessive amount of radiation from being accumulated in a thermography system, and thus makes it possible to quantitatively measure an object’s temperature as high as 3000℃.
요추 추간판 탈출증과 신경초종을 동반한 요각통 환자를 대상으로 한 한방 보존적 치료 치험 1례
우재혁,이한,정호석,김은석,한경완,이준석,김창연,Woo, Jae-Hyuk,Lee, Han,Jung, Ho-Suk,Kim, Eun-Seok,Han, Kyung-Wan,Lee, Jun-Suk,Kim, Chang-Youn 척추신경추나의학회 2010 척추신경추나의학회지 Vol.5 No.1
Objectives: The purpose of this study is to report clinical effects of oriental medicine w~h conservative treatments including acupuncture, Chuna treatment and herbal medicine on a patient with low back pain and lower limb numbness caused by HIVD and schwannoma. Methods: The patient was diagnosed with HIVD and schwannoma through the MRI scan. This case was treated with acupuncture, Chuna treatment and herbal medicine during the whole admission period. We evaluated the progress of the symptoms with objective criteria such as NRS(Numerical Rating Scale), SLRT(Straight Leg Raising Test), ODI(Oswestry Disability Index) score and MMT(Manual Muscle Testing). Results and Conclusions: After weeks of conducting conservative treatment on patient with low back pain and lower limb numbness caused by HIVD and schwannoma occurred at the lumbar spine, significant improvements of the symptoms were seen. These results suggest that in the case of low back pain and lower limb numbness caused by HIVD and schwannoma, conservative treatments can be considered as one of the options of treating the symptoms beside surgical way.
EPON의 DBA방안에서 지연 우선순위를 갖는 트래픽의 재킷 손실률과 지연 성능 분석
박철근,심세용,정호석,Park Chul-Geun,Shim Se-Yong,Jung Ho-Seok 한국통신학회 2005 韓國通信學會論文誌 Vol.30 No.8B
인터넷 사용자의 급속한 증가와 더불어 다양한 멀티미디어 서비스가 출현함에 따라 다중서비스를 지원하는 EPON에서 서비스 품질을 지원하기 위해 트래픽은 우선순위에 따라 분류될 수 있다. EPON망에서의 멀티미디어 응용 서비스는 VoIP(Voice over Internet Protocol)등과 같은 음성 데이터 및 실시간 오디오$\cdot$비디오 등과 같이 지연에 민감한 트래픽을 제공하는 서비스와 BE(Best Effort)와 같은 비실시간 트래픽을 제공하는 서비스로 구분되는데 이러한 서비스들을 적절히 지원하는데 있어서 EPON의 상향 트래픽의 대역 할당 방안을 다룬다. 기존의 제안된 방안을 살펴보고 실시간 트래픽의 성능을 향상시킬 수 있는 새로운 방안을 제시한다. 제시한 방안으로 상향 트래픽의 대역 할당을 지원함으로서 얻을 수 있는 트래픽의 손실률과 지연을 시뮬레이션으로 분석한다. As the rapid increasement of the number of internet users has occured recently, many multimedia application services have been emerging. To improve quality of service, traffic can be suggested to be classified with priority in EPON(Ethernet Passive Optical Network), which is supporting the multimedia application services. In this paper, multimedia application services treat bandwidth classifying device in serving both delay sensitive traffic for real-time audio, video and voice data such as Von(Voice over Internet Protocol), and for real-time traffic such as BE(Best Effort). With looking through existing mechanisms, new mechanism to improve the quality will be suggested. The delay performances and packet losses of traffic achieved by supporting bandwidth allocation of upstream traffic in suggested mechanism will be analized with simulations.
이재봉 ( Jae Bong Lee ),정호석 ( Ho Seok Jung ) 한국부식방식학회(구 한국부식학회) 2014 Corrosion Science and Technology Vol.13 No.1
Copper metal is widely used in tubes installed in sprinkler water services because of its excellent corrosion resistance. Copper corrosion is considered to be insignificant in water system and the incident of copper pipeline failure is relatively low. However, pitting corrosion is a major problem with all copper tubes. In this study, leaked sprinkler copper tubes were collected from three different locations and examined on the causes of pitting corrosion of copper tubes in sprinkler water plumbing systems. Electrochemical tests such as potentiodynamic polarization, as well as surface and chemical analyses were performed. Results show that pitting corrosion of copper tubes were found as Type I pitting that the carbon film formed on the copper tubes have a harmful effects, causing the pinhole failure in the pipe and resulting in leakage of water. The contermeasures on Type I pitting corrosion of copper tubes were proposed.
정용채(Yong-Chae Jung),정호석(Ho-Seok Jung),김정욱(Jeong-Uk Kim) 전력전자학회 2007 전력전자학술대회 논문집 Vol.- No.-
In case Power Line Communication (PLC) method is applied to a rainwater monitoring system, PLC module should be utilized. In this paper, PLC module using ST7538Q is implemented. The design rules of the IC peripheral circuit are explained in detail. The operation of the implemented PLC module is verified through the experimental results.
함정 적외선신호 민감도 해석을 통한 기상변수 영향에 관한 연구
조용진(Yong-Jin Cho),정호석(Ho-Seok Jung) 한국해양공학회 2013 韓國海洋工學會誌 Vol.27 No.3
According to a study on improving ship survivability, an IR signature represents the contrast radiance intensity between the radiation signature from a ship and the background signature. It was found from applying stealth techniques to the process of ship development that the IR signature is remarkably sensitive and dependent on the environment. In this study, marine climate data for the sea near the Korean Peninsula were collected, and the marine meteorological environment in Korean waters was defined. Based on this data, a study on the sensitivity of the IR signature of target objects was performed using analytical methods. The results of the research indicated that clouds have important effects on the infrared signature, but the velocity of the wind and the humidity have only slight effects on the IR signature. In addition, the air and seawater temperatures had hardly any effect on the IR signature, but it is judged that additional study is needed.