• 제목/요약/키워드: String pulse

검색결과 8건 처리시간 0.018초

현맥의 특징에 대한 현대 의학적 고찰 (Modern Medical Scientific Study on the String Pulse)

  • 유현희;이전;전영주;이유정;이시우;김종열
    • 동의생리병리학회지
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    • 제22권3호
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    • pp.535-539
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    • 2008
  • Pulse diagnosis is one of the typical examination methods in traditional oriental medicine. Pulse type classification is a major element of this diagnosis. There are more than 20 pulse types which have each clinical significance. However, pulse type's indications are implicative and obscure. In this study, we reviewed string pulse which is often diagnosed in Traditional Korean Medicine by analysis of Traditional Oriental Medical Literatures and modern medical papers. String pulse is taut and stiff pulse with high tension and low softness. It appears in 'blood vessel endothelial dysfunction', 'autonomic imbalance', 'arteriosclerosis'. Persistent string pulse can bring about cardiovascular or central nervous disease.

손목의 피부특성을 고려한 맥상파 해석모델 개발 (Development of Pulse Wave Analysis Model with Skin Effect)

  • 신상훈
    • 대한한의진단학회지
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    • 제15권2호
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    • pp.159-168
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    • 2011
  • Objectives: The purpose of this study is to develop the pulse wave analysis model with the palpation pressure and the skin effect. Methods: The position of pulse diagnosis was modeled with elastic string system. The skin was modeled with the elastic string, the palpation pressure with tension in the string, and the blood vessel pressure with external force on the string. Using the wave equation in the physics, the simplified pulse model was transformed to the mathematical model. Results: To the verification of the model, the effects of the palpation pressure and the skin effect were tested. Conclusions: There was optimal palpation pressure, describing the exact vessel pressure pattern and maximizing the amplitude of the skin displacement. For the optimal condition, the increased palpation pressure was needed with the increased skin thickness. Therefore, the developed pulse wave analysis model showed the good results.

위(胃)의 생리특성 및 위기(胃氣)와 진장맥(眞藏脈)과의 상관관계에 대한 연구 (Study on Physiological Character of Stomach, and Correlation of Stomach Qi(胃氣) and True Visceral Pulse(眞藏脈))

  • 이혜연;강정수
    • 대한한의학원전학회지
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    • 제24권4호
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    • pp.143-155
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    • 2011
  • By examining the relationship between physiological character of stomach and true viscera pulse(眞臟脈) with "Huangdinejing(黃帝內經)", the study shows these fallowing results. Stomach is not only one of the six bowels(六腑), it represents them. It is called as yang brightness of foot(足陽明) because it has relation with function of earth among five phases(五行), great storage(倉廩) and root of five visceras and six bowels(五臟六腑), has close relationship with triple energizers(三焦). Stomach is an important organ that feeds acquired qi(後天之氣) based on food and stomach qi (胃氣) which is a transformed form by going through digestion, is significant for life conservation. In human body, the activation of stomach qi can be known by pulse. The true viscera pulse is a pulse which predicts the period of death. If stomach qi exsits, viscera qi can be led to greater yin of hand(手太陰), however, when it does not exist, five viscera qi can not be led to greater yin of hand and this kind of situation appears the true viscera pulse. Hence, by knowing the relation between stomach qi and five viscera qi, the condition of normality, disease, and death can be known. In "Hwangdineijing" it says, stomach qi, shortly string like pulse(微弦), shortly surging pulse(微鉤), shortly floating pulse(微毛), and shortly sunken pulse(微毛) shown in four seasons are normal pulse. And also it emphasizes, normal pulse is made when four seasons, five viscera pulse, and stomach qi are in harmony. In conclusion, stomach qi is based on food for well being, and a standard of judging people whether they are living in a healthy life or not.

"상한론(傷寒論)-변맥법(辨脈法)"에 관한 연구(1) (Study on ShangHanLun BianMaiFa (1))

  • 조은경;최종문;김윤주;홍진우;신상우
    • 동의생리병리학회지
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    • 제25권6호
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    • pp.945-960
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    • 2011
  • The BianMaiFa chapter, which is the first chapter of SongBon ShangHanLun, is the scholarly description(專論) of the pulse and pathological mechanism but has not been studied and published yet. This study is about article 1-10 which is the first part of The BianMaiFa chapter. We compared the original texts within the editions, comparing and analyzing the annotations of successive dynastic medical group. The articles of The SongBon ShangHanLun BianMaiFa chapter 1-10 is consisted as is shown: article 1 discriminates pulse by yin-yang and states about the prognosis of disease according to pulse, article 2 states about binding in yin and binding in yang which is from abnormal exuberance of yin and yang, article 3 states about the pulse and pathological mechanism of chills with fever, article 4 states about pathological mechanism and symptom of nutrient and defense through pulse, article 5 distinguishes within binding in yang(陽結), binding in yin(陰結), yang faintness(陽微), yang debilitation(陽衰), blood collapse(亡血) by the pulse which was in article 2 3 4, article 6 7 8 9 10 states states about the shape or pathological mechanism of bound pulse(結脈) skipping pulse(促脈) stirred pulse(動脈) moderate pulse(緩脈) string-like pulse(弦脈) tight pulse(緊脈) drumskin pulse(革脈). Article 4 could be understood that inch pulse is floating and deficient shape and cubit pulse is sunken and weak shape(寸脈浮虛, 尺脈沈弱) related to article 3, article 5 could be understood as binding in yin and yang is aggregation shape related to article 2, yang-qi faintness is floating and debilitation shape, yang-qi debilitation is sunken and faint shape, blood collapse is deficient and stasis shape related to article 3 4.

『상한론(傷寒論)·평맥법(平脈法)』에 관한 연구(1) (The study on ShanghanLun PingMaiFa (1))

  • 최진영;박광천;정한솔;하기태;신상우
    • 한국의사학회지
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    • 제25권2호
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    • pp.63-96
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    • 2012
  • The PingMaiFa chapter, which is the second chapter of SongBon ShangHanLun, is the scholarly description(專論) of the pulse and pathological mechanism but has not been studied and published yet. This study is about article 1-13 which is the first part of The PingMaiFa chapter. We compared the original texts within the editions, comparing and analyzing the annotations of successive dynastic medical group. The articles of The SongBon ShangHanLun PingMaiFa chapter 1-13 is consisted as is shown: article 1 states about the general features of normal pulse (平脈) and its physiological mechanism and the morbid pulses (病脈) caused by wind, cold, retained fluid, pain and heat vexation, article 1,10 state about the normal pulses of Five viscera (lung, heart, spleen, liver and kidney) and their manipulations in pulse taking, article 2 states about the differentiations of deficiency and excess syndrome according to pulse conditions, article 3, 4 state about the estimation of good prognoses and a factitious disorder by the combination of pulses and symptoms, article 6 states about Latent qi (伏氣) and its diagnostic features, article 5 states about inspection and listening examination as co-diagnostic methods of the pulse diagnosis, article 7, 8, 9 state that the emotions, such as fear and shame, and the dietary are important factors to consider for making diagnosis, article 11 states about the overwhelming pulse (相乘脈) which indicates the abnormal correlations between five phases and appears in four patterns as the dissolute(縱), the unrighteous(橫), the unfavorable(逆) and the favorable(順), article 12 states about 6 harmful pulses(殘賊脈), which are string-like pulse(弦脈), tight pulse(緊脈), floating pulse(浮脈), slippery pulse(滑脈), sunken pulse(沈脈), rough pulse(澁脈), article 13 states about "JaeGoe"(災怪) which is an unexpected response after treatment and it comes because of the formulas that had before. Throughout all these articles, The PingMaiFa chapter not only offers great value for Pulse-taking diagnosis, but also leads to a better understanding of clinical applications.

KSLV-I 상단부 고전압 부하용 TVC 배터리 개발 (Development of the TVC Battery for High Voltage Loads in KSLV-I Upper Stage)

  • 김명환;마근수;임유철;이재득
    • 항공우주기술
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    • 제7권2호
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    • pp.110-116
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    • 2008
  • 본 논문에서는 TVC 배터리의 설계 개념, 특성과 환경 및 성능 시험 결과에 대해 간략히 보인다 KSLV-I 상단에 탑재되는 TVC 배터리는 168개의 소니 18650VT 고전력 리튬이온 셀을 사용하며, 84개의 셀을 직렬로 구성한 후 각 열을 병렬로 2개 연결하여 추력 벡터제어(TVC) 시스템의 미션에 요구되는 전압(공칭 270V)과 전류를 공급한다. TVC 시스템의 부하 특성은 짧은 시간 동안 높은 전류 출력을 요구하는 펄스의 형태를 가진다. 무게를 최소화하며 시스템 요구 전력을 공급하기 위해 18650VT 셀을 적용하였다. 18650VT 셀은 고전력 응용분야를 위해 설계된 모델로 10C 연속 방전 능력을 갖고 있다.

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A Word Line Ramping Technique to Suppress the Program Disturbance of NAND Flash Memory

  • Lee, Jin-Wook;Lee, Yeong-Taek;Taehee Cho;Lee, Seungjae;Kim, Dong-Hwan;Wook-Ghee, Hahn;Lim, Young-Ho;Suh, Kang-Deog
    • JSTS:Journal of Semiconductor Technology and Science
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    • 제1권2호
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    • pp.125-131
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    • 2001
  • When the program voltage is applied to a word line, a part of the boosted channel charge in inhibited bit lines is lost due to the coupling between the string select line (SSL) and the adjacent word line. This phenomenon causes the program disturbance in the cells connected to the inhibited bit lines. This program disturbance becomes more serious, as the word line pitch is decreased. To reduce the word line coupling, the rising edge of the word-line voltage waveform was changed from a pulse step into a ramp waveform with a controlled slope. The word-line ramping circuit was composed of a timer, a decoder, a 8 b D/A converter, a comparator, and a high voltage switch pump (HVSP). The ramping voltage was generated by using a stepping waveform. The rising time and the stepping number of the word-line voltage for programming were set to $\mutextrm{m}-$ and 8, respectively,. The ramping circuit was used in a 512Mb NAND flash memory fabricated with a $0.15-\mutextrm{m}$ CMOS technology, reducing the SSL coupling voltage from 1.4V into a value below 0.4V.

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10-비트 CMOS 시간-인터폴레이션 디지털-아날로그 변환기 (A 10-bit CMOS Time-Interpolation Digital-to-Analog Converter)

  • 김문규;장영찬
    • 한국정보통신학회:학술대회논문집
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    • 한국정보통신학회 2012년도 추계학술대회
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    • pp.225-228
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    • 2012
  • 본 논문은 8-비트 디코더, 2-비트 시간-인터폴레이터, 그리고 출력 버퍼로 구성된 10-비트 시간-인터폴레이션 디지털-아날로그 변환기를 제안한다. 제안하는 시간-인터폴레이션 기법은 RC 로우패스 필터에 의한 시정수를 이용해서 charging time을 조절하여 아날로그 값을 결정하는 방법이다. 또한 시간-인터폴레이터를 구현하기 위해 공정 변화를 최소화하기 위해 레플리카 회로를 포함한 제어 펄스 발생기를 제안한다. 제안하는 10-비트 시간-인터폴레이션 디지털-아날로그 변환기는 3.3 V $0.35{\mu}m$ 1-poly 6-metal CMOS 공정을 이용하여 설계된다. 설계된 10-비트 시간-인터폴레이션 디지털-아날로그 변환기의 면적은 기존의 10-비트 저항열 디지털-아날로그 변환기의 61%를 차지한다. 그리고 시뮬레이션 된 DNL과 INL은 각각 +0.15/-0.21 LSB와 +0.15/-0.16 LSB이다.

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