• 제목/요약/키워드: PULSE

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Cascading 방식을 적용한 펄스발생기의 펄스전압 변성 및 Cascading 비율 특성 (A Study on the Pulse Peak Voltage and Cascading Ratio of Compact Pulse Generator using Cascading Method)

  • 정종한;김희제
    • 대한전기학회논문지:전기물성ㆍ응용부문C
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    • 제50권7호
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    • pp.329-333
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    • 2001
  • The pulsed poser system has been widely used to many applications, such as E/P(Electrostatic Precipitator), DeNox/DeSOx power system, ozon generator, etc. A pulse energy efficiency for load depends on the rising time, peak value, pulse duration and impedance matching, etc. The pulse generator generally required for short pusle duration and high peak value was forced to consider its volume and economy. In this study, developing a compact pulse generator that applied for cascading method to be made of two pulse transformers, we compared cascading voltage with non cascading one by applying the pulse energy to load. Adopting cascading technique to pulse transformer, we found that average cascading voltage was about 60[%] of theoretical value. Maximum cascading ratio was calculated at 60 times compared with non cascading voltage.

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가변폭 Double-Pulse Generator에 관한 연구 (Research on the Variable-Width and Double-Pulse Generator)

  • 이병선
    • 대한전자공학회논문지
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    • 제7권4호
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    • pp.6-13
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    • 1970
  • 여기에 기술된 가변폭 double-pulse generator는 완전 transistor화 되어서 소형이고 사용하기 간편하다 주파수는 1KHz까지 가변할 수 있으며 pulse의 폭은 0.4μsec에서 8μsec까지, pulse의 진폭은 1V에서 10V까지, double pulse 간의 간폭은 0μsec에서 12μsec까지 가별할 수 있다. 정 또는 부의 single 또는 double pulse를 얻을 수 있다. 각단마다의 해석을 하였으며 아울러 설계식을 유도하고 실험과 비교하였다.

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광폭 전기집진기의 집진특성에 판한 연구 - II. 펄스 하전 파형의 영향 - (A Study on the Collection Characteristics of a Wide Plate-Spacing Electrostatic Precipitator -II. Effect of Wave Form of Pulse Energization -)

  • 김용진;하병길;정상현;홍원석;하대홍;유주식
    • 설비공학논문집
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    • 제13권11호
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    • pp.1059-1064
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    • 2001
  • This study Investigates the effect of the wave form of pulse energization on the collection characteristics of a wide plate spacing electrostatic precipitator. For the semi-pulse energization, the peak current and voltage of the energization increases with increase of the pulse period, and the corona current increases, as pulse ratio decreases. For the micro-pulse energization, the corona current increases with increase of the pulse voltage. The collection efficiency of semi-pulse and micro-pulse energization is larger than that of DC charge.

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맥상 분류 기준에 대한 방법론적 고찰 - "빈호맥학(瀕湖脈學)"을 중심으로 - (The Methodic Study on a Standard of Classification of Pulse Condition -a Focus of ${\ulcorner}$The Pulse Studies of Bin-Ho(瀕湖脈學)${\lrcorner}$-)

  • 이주호;최환수;김철중
    • 한국한의학연구원논문집
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    • 제10권1호
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    • pp.49-61
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    • 2004
  • The Standardization of terms in The Pulse studies(脈學) is a need for development of learning. This study, for the correction of existing misused terms in The Pulse studies, we study on modernly and objectively the terms in The Pulse studies. By a focus of ${\ulcorner}$The Pulse Studies of Bin-Ho(瀕湖脈學)${\lrcorner}$, we studies on the new classification of pulse condition. The error of a existing technical books on Pulse studies begin that the classification of pulse condition is not establish a Standardization. For the correction of existing misused terms in The Pulse studies, we study on the pulse condition is expressed objectively a blood vessel that it is a subject of pulse condition. The expression of blood vessel contain a depth of blood vessel, a speed of pulsation, a curve of blood vessel, thickness of blood vessel, a diameter of blood vessel in expand and contract of blood vessel, a interval in expand and contract of blood vessel, a distinctness on a boundary of blood vessel, a speed of blood flow in blood vessel, a volume of blood flow in blood vessel, a condition of blood in blood vessel, a propelling power of blood vessel. These is standard of the new classification of pulse condition.

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맥진(脈診)의 사상의학적(四象醫學的) 고찰(考察) (The Sasang Constitutional Thought of Pulse Diagnosis)

  • 김인태;이수경;이의주;고병희;송일병
    • 사상체질의학회지
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    • 제15권3호
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    • pp.22-32
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    • 2003
  • The pulse diagnosis is the basic method of oriental medicine diagnosis. But in sasang constitutional medicine, it is said that it's not a major diagnotic method. But we don't have any sasang constitutional study of the pulse diagnosis. So I made this study by research of changing concept of the pulse diagnosis in chinese medical history and Dongyi Suse Bowon (longevity and life preservation in oriental medicine). The conclusion as follows. 1. There were many kinds of the pulse diagnosis in the ancient times, it has developed to simple and effective diagnotic method. Simple and effective is the major point of medical development, the 24 pulse is abridged to Floating Pulse(浮), Deep Pulse(沈), Slow Pulse(遲), Rapid Pulse(數) 2. The latter term of Chosun, the practical study was developed. In the view of the practical study, the pulse diagnosis has a lot of cricical point. Jung Yak-Yong, in his writing Mak Lon(脈論), criticize the pulse diagnosis. 3. In the sasang constitutional medicine, the constitutional diagnosis is very important. The methods of the constitutional diagnosis are three, the way of mind and greed, knowledge and deed, external figure and physical traits. But the pulse diagnosis is one of the way of external figure and physical traits, so we can't diagnose the exact constitution by the pulse diagnosis. 4. Dong-mu conclude that the pulse diagnosis is just the diagnostic way of symptom. But in the clinical situation, the ordinary symptoms are more important than the pulse diagnosis, because it is useful to know the condition of the ingestive food metabolism and the Qi-yack metabolism

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모바일 PULSE : 모바일 싱크 노드를 가진 센서 네트워크에서의 경로 복구 시간과 전력 소모량을 고려한 라우팅 프로토콜 (Mobile PULSE : A Routing Protocol Considering the Power and the Route Recovery Time in Sensor Networks with A Mobile Sink Node)

  • 이치영;이신형;유혁
    • 한국통신학회논문지
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    • 제34권2B호
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    • pp.151-161
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    • 2009
  • PULSE 프로토콜은 센서 노드의 슬립을 통해 소모 전력량을 크게 줄인다. 그러나 이 프로토콜은 싱크 노드의 이동을 고려하지 않는 문제가 있다. 모바일 싱크 노드를 가진 센서 네트워크를 위한 라우팅 프로토콜은 빠른 경로 복구와 전력 소모 최소화를 모두 달성해야 한다. 본 논문은 두 목적을 달성하기 위해 모바일 PULSE 프로토콜을 제안한다. 또한, 실험을 통해 제안한 프로토콜의 경로 복구 능력과 전력 소모량을 확인하였다. 이 프로토콜은 기존의 PULSE 프로토콜에 비해 약 40% 정도 경로 복구 시간을 단축하였고, 드롭되는 패킷의 양도 약 1/2 수준으로 줄였다. 전력 소모량 면에서는 최대 0.8%의 증가만이 나타남으로써, 기존의 PULSE 프로토콜의 전력 효율적인 특징을 그대로 유지함을 보였다. 본 논문은 모바일 PULSE 프로토콜의 경로 복구 능력과 전력 소모량을 확인함으로써 모바일 센서 네트워크에 적합한 프로토콜로서의 가능성을 보여준다.

비접촉식 광생체단층촬영 기술을 이용한 맥진 연구 -맥의 빠르기, 크기 및 맥력을 중심으로- (The study of non-contact/non-invasive pulse analyzing system using Optical Coherence Tomography (OCT) for oriental pulse diagnosis)

  • 나창수;윤대환;김영선;이창호;정운상;김지현;최찬헌
    • Korean Journal of Acupuncture
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    • 제26권2호
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    • pp.1-13
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    • 2009
  • Objective: Optical Coherence Tomography (OCT) has emerged as an important optical imaging modality in non-invasive medical diagnostics. Hence, the aim of this study is to measure the similarity of the diagnosis by a traditional method using doctor's hand for feeling of pulse and by the non-contact/non-invasive pulse analyzing system using OCT on Chon(寸), Kwan(關), Chuk(尺). Method: Four korean medical doctors and the non-contact/non-invasive pulse analyzing system using OCT have measured the rapidity, the dimension, and the power of pulse waves of 25 volunteers. First, four korean medical doctors measured pulse waves of volunteers. During measuring, four doctors were separated from each other and so were volunteers. And then, the pulse waves of volunteers were measured by OCT. This was performed on the right Chon(寸), Kwan(關), Chuk(尺). Results: The study showed that the traditional method and the OCT based method had the 88% matches on the values of the slow and rapid pulse condition (遲數), 64% matches on the values of the small and big pulse condition(微細弱緩大[洪]), and 72% matches on the values of the weak and strong pulse condition(虛實). Conclusions: Based on the high similarities of the measurements of two approaches, we suggest that the OCT based pulse diagnosis method is useful for compensating the traditional method for the pulse diagnosis.

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경맥진단(經脈診斷)의 맥진법(脈診法)이 기구맥(氣口脈)의 촌관척(寸關尺) 육부정위맥진법(六部定位脈診法)으로 연변(演變)된 연유(緣由)에 관(關)한 연구(硏究) -경맥학설(經脈學說) 및 맥진법(脈診法)의 상관성(相關性)- (A study on the reason that pulse-feeling method of meridians diagnosis flows into diagnostic method by taking pulse of setting six region for Chon(寸), Gwan(關) and Cheok(尺), i.e. the Chon[寸] spot pulse -A study on the transition of pulse-feeling method-)

  • 임한제;윤종화
    • Journal of Acupuncture Research
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    • 제21권1호
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    • pp.1-20
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    • 2004
  • Pulse-feeling took its origin from making a diagnosis along meridians in the course of discovering and forming meridians and for a long time its meaning was mixed with meridians in the course of recognizing "The Pulse" then was separated from meridians in the early days of Western Han Dynasty. Ancient pulse-feeling methods are pulse-feeling method by the twelve regular meridians, pulse-feeling method by three regions and nine modes, pulse-feeling method by Inyeong(人迎) and Chon-gu(寸口), etc. Pulse-feeling was changed in proportion to diagnostic purpose and method of treating and if method and region of pulse-feeling is arranged, we will infer correlation between meridians and pulse-feeling and will infer transitional system of past pulse-feeling and will forecast transition of future pulse-feeling. As the result that I study the transition of the above three pulse-feeling methods of meridians diagnosis: 1. Three pulse-feeling methods of meridians diagnosis flowed into diagnostic method by taking pulse of setting six region for Chon(寸), Gwan(關) and Cheok(尺), i.e. the Chon[寸] spot pulse of $\ll$Nan-gyeong$\gg$ and were changed into diagnostic method being fit for use of five Su points, The Front-Mo points and Back-Su points that grasp the pathology of mutual internal organs and treat the disease. 2. Today it is suggesting the transition of another pulse-feeling method that do not apply diagnostic method by taking pulse of setting six region for Chon(寸), Gwan(關) and Cheok(尺), i.e. the Chon[寸] spot pulse of $\ll$Nan-gyeong$\gg$ to 19C Sasang(四象) Constitutional Medicine or 20C Eight Constitutional Medicine.

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여성 불임환자의 맥진특성 연구 (A Study on Characteristics of Pulse Diagnosis in Infertile Women)

  • 유정은;장새별;유동열
    • 혜화의학회지
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    • 제23권2호
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    • pp.15-21
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    • 2015
  • Objective : The purpose of this study is to demonstrate the characteristics of pulse diagnosis in infertile women. Methods : We have studied 38 women infertility patients in the Dunsan oriental hospital by using pulse diagnostic device. Pulsation and pulse types have been analyzed with variables of infertility factors. Statistical analysis was performed by adopting descriptive and inferential tests. Results : Both right and left chi parts were shown different from other parts. In small intestine and gall bladder showed significantly different pulsation according to the infertility factor. Short pulse, fine pulse, skipping pulse, shallow pulse and deep pulse were often representative pulse types for the main organs of woman infertility. In Triple energizers showed significantly different shallow pulse type according to the infertility factor. Conclusion : The results corresponded closely with previous literature on pulse diagnosis about infertile women.

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폐납축전지 재활용을 위한 펄스전류에 의한 전압조정기와 펄스충전기의 개발 (Development of Voltage Regulator and Pulse Charger Using Pulse Current for Reuse of the Waste Lead Acid Battery)

  • 신춘식;안영주;김동완
    • 전기학회논문지P
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    • 제56권2호
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    • pp.65-73
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    • 2007
  • In this study, the pulse charger and voltage regulator are proposed that can reuse the waste lead acid battery. The first we develop the voltage regulator that can reuse the waste lead battery. And the pulse current is applied to the terminal of the waste lead acid battery. The voltage regulator is available principle of the pulse current which can reduce the sulfate to incipient material such as Pb and PbO2. Therefore the internal resistance of the lead acid battery is decreased, the performance of the lead acid battery is improved and the durability is prolonged. The second we develop the pulse charger using the voltage regulator. The pulse charger uses the switch mode of the forward convert method. The pulse charger maintain the constant voltage in state removing the lead acid battery and when it connected the pulse charger, it is converted the charge mode of the constant current immediately. It continues the rapid charge until the full state of the lead acid battery. After that the pulse charger is converted to the charge mode of constant voltage automatically, and then it continues the normal charge. The experiment results show that the effectiveness of the voltage regulator and pulse charger such as the good performance and the prolonged durability in lead acid battery of the small and large capacity.