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한의 치료와 드레싱 요법을 병행한 뇌졸중 환자의 대퇴골 대전자부 3단계 욕창 치험 1례
김광호,이영웅,김철현,임현서,강건희,이상관,Kim, Kwangho,Lee, Young-ung,Kim, Cheol-hyun,Lim, Hyeon-seo,Kang, Geonhui,Lee, Sangkwan 대한한방내과학회 2021 大韓韓方內科學會誌 Vol.42 No.2
The purpose of this study is to report the effect of Korean medicine treatment on a pressure sore in a stroke patient. An 86-year-old female patient diagnosed with spontaneous intracerebral hemorrhage in the right basal ganglia had symptoms of left hemiparesis, dysphagia, and a 4.5-cm-by-2.5-cm left trochanteric pressure sore. Clinical outcomes were measured using the National Pressure Ulcer Advisory Panel (NPUAP) pressure injury stages, the Agency for Health Care Policy and Research (AHCPR) pressure ulcer stages, and the Braden scales. Treatment with Korean medicine, including acupuncture, herbal medicine, and dressing therapy, significantly improved the trochanteric pressure sore, as reflected by a NPUAP stage change from III to I, an AHCPR stage change from III to I, and a Braden scale change from 13 to 18. These findings suggest that Korean medicine treatment may be effective to treat pressure sores in stroke patients.
벡터 회로망 분석기 측정을 기반으로 한 3상 변압기의 시간영역 펄스 신호에 대한 응답 분석
김광호,정종만,나완수,Kim, Kwangho,Jung, Jongman,Nah, Wansoo 한국전력공사 2015 KEPCO Journal on electric power and energy Vol.1 No.1
Transformer is widely used element on power system and industrial area. Especially the transformers installed at power system are exposed to an environment of arbitrary changed. Thus the prediction of degradation and the analysis of response to impulse are important. To conduct those works, the electrical characteristics of system should be analyzed, effectively. But the analysis of electrical characteristic in electric machine level such as pole and pad-mounted transformer is almost no, thus commercial VNA (Vector Network Analyzer) is used to getting the response in wide frequency range. However, the output power of VNA is usually under 10mW, so verification for effectiveness of measuring electrically large component should be conducted, firstly. Next, after getting total S-parameter of transformer, predicting impulse response can be performed in time-domain with circuit simulator. In this paper, it is introduced that verification effectiveness of VNA using transfer function from SFRA (Sweep Frequency Response Analyzer), firstly. Next, total S-parameter, six by six matix form, was built using measured 2 port S-parameter from vector network analyzer. To get the response to impulse which is defined by IEC 60060-1, time-domain simulation is conducted to ADS (Advenced Design System) circuit simulator.
김광호(Kwangho Kim),이찬길(Chankil Lee) 한국자동차공학회 2006 한국자동차공학회 Symposium Vol.- No.-
Intelligent Transportation System (ITS) employing advanced communications and control technologies can provide collision avoidance service. Contrary to MANET, in VANET nodes which are vehicles can move with high speed and generally must communicate quickly and reliably. A traditional method as flooding protocol cannot be applied to ITS safety application since it causes a large overhead and high rate of message collisions. To to disseminate emergency message effectively with low overhead, DDT & IVG protocols were presented. In this paper, the advanced protocol to disseminate emergency message among vehicles is proposed in order to avoid collision when accident or any other obstacle in a highway. In emergency situation, the proposed protocol determines transmission availability considering vehicle speeds and relevant area during defer time to broadcast the message effectively. Therefore, emergency message can be transmitted as fast as possible by low collision probability and overhead than other protocols.
김광호 ( Kwangho Kim ),최순용 ( Soonyong Choi ),김건희 ( Gunhee Kim ),신동규 ( Dongkyoo Shin ),신동일 ( Dongil Shin ) 한국정보처리학회 2004 한국정보처리학회 학술대회논문집 Vol.11 No.1
본 논문에서는 MPEG-4 스트림의 디지털 저작권 관리(DRM)를 위한 암호화 방법을 제안한다. MPEG-4는 멀티미디어 스트리밍을 위한 표준이며 MPEG-4 파일 포맷에 따라 저장된다. 인가된 사용자들만 접근이 가능하도록 MPEG-4 파일 포맷으로부터 추출된 I-VOP, P-VOP의 매크로 블록(MB)들과 모션 벡터(MV)들을 암호화 하는 3가지 방법을 설계하였고, MPEG-4 데이터의 암호화에는 DES(Data Encryption Standard)를 사용하였다. 이러한 암호화 방법을 기반으로 MPEG-4 데이터 스트리밍을 위한 인터넷 방송 서비스용 DRM 솔루션을 구현하고, 최적의 암호화 방법을 선택하기 위해 복호화 속도 및 영상의 품질을 비교하였다.
김광호(Kwangho Kim),이재무(Jaemu Lee) 한국정보과학회 2003 정보과학회 컴퓨팅의 실제 논문지 Vol.9 No.4
본 연구에서는 문항반응이론식 CAT 기법을 이용하여, 학습부진아를 진단하고 평가 결과를 즉시 확인할 수 있는 학습부진아 진단을 위한 웹기반 적응형 평가시스템을 구현하였다. 적응형 평가시스템은 단순히 피험자에게 검사 문항을 제시하는 것이 아니라, 각 문항의 정보를 계산하여 피험자에게 검사 문항을 제시하고 피험자의 응답을 다음 문항 추출의 입력 조건으로 처리하여 피험자 개개인에게 가장 적합한 문항을 다시 추출하여 피험자에게 제시하는 시스템이다. 이 시스템은 문항의 특성에 관련된 각종 정보들을 문항과 함께 체계적으로 저장하고 관리할 수 있는 평가시스템이다. 그리고 피험자의 반응에 따라 수준을 고려한 문항이 추출되어 피험자의 수준 및 상황에 반응하여 평가의 길이, 난이도가 조절되는 평가시스템이다. In this study, we have developed a web-based adaptive testing system using item response theory's computerized adaptive testing to diagnose underachievers, and to check the evaluation results immediately. Adaptive testing system simple is not the fact that it presents a question to students. It calculates information of a question and presents the question to students. It controls the response of the students under extraction conditions of the next question. It extracts the question which is the most suitable it presents. In this adaptive testing system, you can extract questions according to the level of the students, and adjust the length and the level of the difficulty according to the response of the students.