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윤달황,정찬길,소경순 世明대학교 한의학연구소 1998 韓醫學硏究所 論文集 Vol.1 No.-
본 논문은 맥파검출기의 채널간에 발생하는 상호신호간섭을 감소시키기 위해 Sign 알고리듬을 적용한다. 이 알고리듬은 맥파가 저주파이고 매우 천천히 변하는 환경하에서 기존의 알고리듬과 비교하여 보다 유리한 성능을 가지며, 이를 이용하여 분할등화기를 구현한다. We propose the Sign algorithm and analyze the convergence characteristics of it. To evaluate the performance of proposed Sign algorithm, fractionally spaced equalizer is used. Especially, we present that this method have the advantages for the condition having the low-frequency and slow speed.
윤달환,정찬길,소경순 世明대학교 한의학연구소 1998 韓醫學硏究所 論文集 Vol.1 No.-
한의학은 개념적이고 주관적인 임상정보를 과학적 데이터화하여 환자를 치료하고자 한의의료장비의 응용에 많은 노력을 하고 있다. 맥파를 검출하기 위해서는 센서에 가해지는 압력, 센서 구동부의 운동 등 여러 가지 파라미터가 있다. 본 논문은 맥진의 정확한 맥상을 검출하기 위하여 3채녈 맥파검출 헤드장치 구동부를 유연하게 동작하도록 시스템을 개발하고, 기존의 양단 스위치 동작에 의한 헤드부의 모터운동을 제거함과 동시에 GUI형태로 맥진시스템을 구성한다. 특히 맥진정보를 받아들이는 寸ㆍ關ㆍ尺 헤드부의 정확한 동작이 맥진시스템의 성능을 향상시키는 역할을 하며, 이는 임상판정의 정확성을 기할 수 있도록 한다. In Oriental medicine, most of the medical examination of a patient depend on subjective explanation of self-patient. The application of an apparatus has an important significance in ensuring the objectivity of clinical information and in promoting the reproductivity and stability through the qualification and quantization. This paper development the pulse diagnostic apparatus of 3-channel type to detect exact pulsatory motion of a pulse wave, which is the type of GUI(graphic user interface) that one have the faculty of smoothing motor and the driving part of non-swich operating the sensor head. This system increase the function of pulse diagnosis and support the clinical decision.
심장의 Multidipole 전류원 모델링 및 신호분석
윤달환 世明대학교 한의학연구소 2003 韓醫學硏究所 論文集 Vol.5 No.-
In this paper, we have invented the multi-dipole current source system to develop the magnetocardiograph (MCG) system for diagnosing a heart disease. we derive the QRS pulse form of the heart by using th MCG system with this system, and evaluate the performance.
文濬典,崔達永,朴元煥,尹相柱 대한동의병리학회 1993 동의생리병리학회지 Vol.8 No.-
연구배경 : 최근 우리나라에 있어서도 생활 양식의 서구화로 말미암아 다발하고 있는 각종 현대병의 하나인 고지혈증을 한의학적으로 치료하기 위한 방법론의 개발을 연구목적으로 하여, 한의학의 전통적 병인 개념인 담음이론을 통해 고지혈증의 한의학적 개념을 설명하고, 〈의학입문〉처방인 소조중탕을 통해 치료 약재의 개발 가능성을 실험적으로 규명하고자 한다. 방법 : 실험동물에 cholesterol현탁액을 투여하여 고지혈증을 유발시키면서, 〈의학입문〉에 수재된 소조중탕을 투여하여 혈청지질에 포함되어 있는 total-cholesterol, H. D. L-cholesterol, triglyceride, phospholipid 등의 함량변화를 관찰한다. 결과 : 血淸中 total-cholesterol과 triglyceride含量에 미치는 影響은 對照群에 比하여 매우 顯著한 有意性있는 減少가 나타났으며, 血淸中 H.D.L.-cholesterol과 phospholipid含量에 미치는 影響은 對照群에 比하여 有意性있는 減少가 나타났으며, 血淸中 total cholesterol과 HDL cholesterol의 比率은 對照群에 比하여 有意性이 認定되지 않지만 total cholesterol과 phospholipid의 比率은 對照群에 比하여 有意性이 認定된다. 결론 : 祛痰之劑인 小調中湯은 高脂血症의 改善에 有意性있는 成績을 나타내므로 高脂血症과 痰飮은 相關性이 있으며 脂質代謝異常에 따른 動脈硬化症에도 活用될 수 있는 것으로 思慮된다. In order to study the effects of Xiaotiaozhongtang on hyperlipidemia, white rats were induced by lipid metabolism disorder by the oral-injection of cholesterol. The effects of Xiaotiaozhongtang on lipid in serum were measured by the quantity of total-cholesterol and of H.D.L-cholesterol and of triglyceride and of phospholipid, by the rate of total-cholesterol vs H.D.L-cholesterol and of total-cholesterol vs phospholipid in serum. As a result, we can conclude as follows: 1. Effects of Xiaotiaozhongtang on total-cholesterol and triglyceride levels in serum of cholesterol treated rats were very noticeable. 2. Effects of Xiaotiaozhongtang on H. D. L-cholesterol and phospholipid levels in serum of cholesterol treated rats were noticeable. 3. Effect of Xiaotiaozhogtang on the rate of total-cholesterol vs H. D. L-cholesterol in serum of cholesterol treated rats was unnoticed, but on the rate of total-cholesterol vs phospholipid was noticeable. Thus,as the above-mentioned, on hyperlipidemia, the effects of Xiaotiaozhongtang can be recognized. Secondly, both hyperlipidemia and "phlegm-retention" have correlation each other. In the last place,Xiaotiaozhongtang may be used to artherosclerosis induced by, lipid metabolism disorder, hyperlipidemia.
Efficient Spectral Analysis for Evaluating TDX Service Signal in Frequency Domain
Dal Hwan Yoon,Dongjin Ji,Jong Min Han,Myeon-Gyun Cho 대한전자공학회 2010 ICEIC:International Conference on Electronics, Inf Vol.1 No.1
We need to analyze status of signals sent from/received to a signaling equipment in TDX exchange system, providing the fully electronic switching system. There are types of signal such as R2MFC/DTMF/CCT/VOICE connecting a universal signal transceiver unit and time switch unit. Then we classify these PCM signals of the preferred channel from the subhighway and discriminates the digit. In this paper, we propose new algorithm of signal analysis and discrimination of digit, which use modified DFT based on the symmetric properties. In the experimental results, it shows the improved performance and reduced memory waste and process the real-time.
Control of the Home Appliance using the Mobile and Internet
Dal-Hwan Yoon,Dong-Joo Bae,Yea-Heun Jung,Hyun-Seok Ko,Sun-Hi Cho,Jun- Hyung Kang 대한전자공학회 2007 ITC-CSCC :International Technical Conference on Ci Vol.2007 No.7
In this paper, we have developed the application circuit for control the home appliances. The one receive the control commend from the UI of the mobile, and then control the home appliances. Also the graphic user interface in PC can control the gateway to establish an internet.
Development of Digital Multimedia Player using the Web
Dal-Hwan Yoon,Dong-Joo Bae,Ye-Heun Jeng,O-Hun Kwon,Yong-Jin Park,Kyung-In Choi 대한전자공학회 2007 ITC-CSCC :International Technical Conference on Ci Vol.2007 No.7
In this paper, we have developed the player for the digital media based on the Web. The player display MP3, moving image or still image. Also, it can represent a various file received from PC on a Web sever and have external port for SD/CF memory card of digital camera.
Wire or Wireless Convergence System for Home Appliance Control based on the PC and Mobile
Dal-Hwan Yoon,Dong-Joo Bae,Yea-Heun Jung,Young-Hyun Ko,Jeng-A Lee,Hi-Seok Kim 대한전자공학회 2007 ITC-CSCC :International Technical Conference on Ci Vol.2007 No.7
We have developed the convergence system that can control an appliance based on the mobile phone and an internet. The system can display the GPS information received from the satellite. In order to communicate between the mobile phone and the PC, UI(User Interface) have several control functions about the LCD, matrix and motor, so on.