• Title/Summary/Keyword: The pulse

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Immobilization of Heparin onto the Polyurethane

  • Cho, Chong-Su;Kim, Sung-Wan
    • Journal of Biomedical Engineering Research
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    • v.7 no.2
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    • pp.147-150
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    • 1986
  • This paper describes the implementation of a computerized radial pulse diagnosis by aids of a clinical expert. On this base, we composed of the radial pulse diagnosis system in korean traditional medicine. The system composed of a radial pulse wave detection system and a radial pulse diagnosis system. With a detection system, we detected Inyoung and Cheongu radial pulse wave and processed it. Then, we have got the characteristic parameters of radial pulse wave and also quantified that according to the method of Inyoung-Cheongu Comparison Radial Pulse Diagnosis. We defined the jugement standard of radial pulse diagnosis system and then we confirmed the possibility for realization of automatic radial pulse diagnosis in korean traditional medicine.

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Influence of first sustain pulse width on equilibrium sustain current in AC-PDP with ramp reset pulse

  • 김성수
    • Proceedings of the Korean Vacuum Society Conference
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    • 2000.02a
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    • pp.200-200
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    • 2000
  • AC-PDP의 구동은 인가되는 Pulse의 파형에 의하여 결정된다. 이번 실험은 AC-PDP의 Subfield 파형중 Sustain 부분 첫 번째 Pulse의 폭(Width)에 변화를 주어 다음 Suatain Pulse 기간동안의 전기 광학적 특성을 구속 카메라와 전류의 변화를 통하여 측정하였으며 Sustain Pulse의 Rising Time을 변화 시켜 방전특성을 측정하였다. 이를 통하여 적합한 Sustain 구간의 초기조건을 예측하였으며, 적합한 Sustain Pulse를 찾아가는 실험 방법을 찾고자 하였다.

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Mechanical and Tribological Properties of Pulse and Direct Current Electrodeposited Ni-TiO2 Nano Composite Coatings

  • Gyawali, Gobinda;Woo, Dong-Jin;Lee, Soo-Wohn
    • Journal of the Korean institute of surface engineering
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    • v.43 no.6
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    • pp.283-288
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    • 2010
  • Ni-$TiO_2$ nano composite coatings were fabricated using pulse current electrodeposition technique at 100 Hz pulse frequency with a constant 50% pulse duty cycles and reference was taken with respect to the direct current (dc) electrodeposition. The properties of the composite coatings were investigated by using SEM, XRD, Wear test and Vicker's microhardness test. Pulse electrodeposited composite has exhibited enhancement of (111), (220), and (311) diffraction lines with an attenuation of (200) line. The results demonstrated that the microhardness of composite coatings under pulse condition was significantly improved than that of pure nickel coating as well as dc electrodeposited Ni-$TiO_2$ composite coatings. Wear tracks have shown the less plastic deformation in pulse plated composite. Coefficient of friction was also found to be lower in pulse plated composite coatings as compared to dc plated composite coatings.

A Study on Bianque's pulse Diagnosis (편작맥법(扁鵲脈法)에 관한 연구(硏究))

  • Bang, Min-woo;Kim, Ki-woo
    • Journal of Korean Medical classics
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    • v.30 no.3
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    • pp.143-165
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    • 2017
  • Objectives : The paper seeks to provide a study on Bianque's Pulse Diagnosis in the contexts of Huangdi Neijing's Maijing and Nanjing. Methods : The paper provides a comparison of sentences regarding Bianque's Pulse Diagnosis discovered in Neijing, Maijing, and Nanjing. Results & Conclusions: 1. Bianque's Pulse Diagnosis was given birth through stages in accoradnce with the development of Pyobonjin, Maeggujin, Gyeongmaeghyjin, and Meridian Theory. 2. It seems that Neijing filled in Sambuguhujin and In-yeongbuyangmaegjin because they were not discovered in Canggong's Records of Diagnosis. 3. Bianque's Pulse Diagnosis diagnosed death using Osaegjin. Underneath each sentence within each biography regarding Meridian, there existed Pulse dead Hou. 4. Bianque's Pulse Diagnosis quantified the operation and length of pulse in time. The concept of small net was added which led to the establishment of Fifty circulations, Yeongwi theory, Meridians circulation, and chongu's boundary.

Pulse Multiplication of 6-Pulse Thyristor Converter with Simple Auxiliary Circuit (간단한 보조회로 추가에 의한 6-펄스 싸이리스터 컨버터의 다펄스화)

  • 정재혁;최세완;이인환;황용하
    • The Transactions of the Korean Institute of Power Electronics
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    • v.5 no.6
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    • pp.568-574
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    • 2000
  • A new pulse multiplication technique based on 6-pulse thyristor converters is proposed in this paper. With the proposed technique, 12-pulse, 18-pulse and 24-pulse operations have been obtained both on the input current and on the output voltage. A control strategy over the whole range of phase angle is provided along with sophisticated input current and output voltage analysis. Experimental results from a laboratory prototype verify the proposed theory.

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Association of the Strength of Inyoung Pulse and Carotid Artery Using Ultrasonography and Pulse Diagnosis Device (초음파와 맥진기로 살펴본 인영맥의 세기와 경동맥의 상관 요인 연구)

  • Song, Min Sun;Lee, Shang Young;Choi, Chan-Hun
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.26 no.5
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    • pp.610-614
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    • 2012
  • This study was done to identify correlates of carotid artery ultrasonography's measurement and Inyoung pulse in college students. We measured the amplitude of Inyoung pulse, Chongu pulse, ratio of Inyoung to Chongu and ratio of Chongu to Inyoung on 30 college students. Also, We measured the Distance, Diameter), RI(resistivity index), S/D(systolic, diastolic ratio), PI(pulsatility index), PSV(peak systolic velocity), EDV(End diastolic velocity), Vmean using carotid artery ultrasonography. The data was analyzed by Pearson's correlation coefficient using SAS program. The results were as follow. Results showed a positive correlation between Inyoung pulse and diameter by carotid artery. It showed a positive correlation between Inyoung pulse and S/D. Also, It showed a positive correlation between Inyoung pulse and PSV. As a result, the strength of Inyoung pulse related with the diameter of carotid artery and blood flow velocity.

A Study on the Sasang Constitutional Differences in the Pulse Wave of Korean Healthy Adult Men (한국인 성인 남성의 체질별 맥상 특성에 관한 연구)

  • Kim, Ho-Seok;Ryu, Hyun-Hee;Lee, Si-Woo
    • Korean Journal of Oriental Medicine
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    • v.13 no.2 s.20
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    • pp.71-74
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    • 2007
  • Background : Sasang Constitutional Medicine (SCM) is the field of traditional Korean medicine that emphasize four constitutional types for diagnosis and treatment. Appearance, personalities and pathological characteristics are main factors of Sasang constitutional classification. Previous studies carried out by the pulse analyzer showed that the pulse wave can discriminate these types. In addition, It was reported that the pulse wave are affected by age and sexuality. In this study, we investigated the pulse wave characteristics related Sasang constitution types in control group regarding their age and sexuality. Subjects and Method : Two hudred and eighteen volunteers participated in this study: healthy men in $20{\sim}49$ years old. Participants were interviewed and examined to evaluate their health condition and Sasang constitution type. Then they were tested with pulse analyzer when they ere stabilized. The pulse at the radial artery just beside styloid process was measured, because this area is landmark for pulse diagnosis in oriental medicine. 3-D Mac pulse analyzer (Daeyo Medi Co. Ansan. Korea) was used in this study. We analyzed main features of pulse waves with the Sasang condtitution types by the SPSS for Windows (ver 12.0). Results : There was significant difference between Taeum and other types in contact pressure as weil as in coefficient of floating and sinking pulse. Conclusion : By analyzing pulse waves of healthy adult men. we found significant differences exist between Taeum and other types. These pulse differences may characterize Taeum type, and it will be helpful for the evaluation of Taeum type.

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Study on Reillumination of Hi-soo type Electronic Manometer (희수식 전자 맥진기의 재조명)

  • Kim, Eun-Hye;Kim, Byung-Soo;Kang, Jung-Soo
    • Journal of Haehwa Medicine
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    • v.18 no.2
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    • pp.37-45
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    • 2009
  • In early 1970s, Electronic Manometers were researched and developed for modernization and objectification of pulse diagnosis. Method of finger pressing, also known as cuffs pressing, is essential for sensing a pulse wave. I think comprehension and deduction of problem from the existing Hi-soo type electronic manometer, will be important for making a better one. The Hi-soo type electronic manometer is constructed of cuff pressing type sensor, differential amplifier, transmitter and recorder. Pulse movement and pulse wave, gauging blood flow, is analyzed by pulse image of "Yixuerumen(醫學入門)". At standard of pulse wave, huanmai(緩脈) is distinguish from chishu(slow and fast, 遲數), fushen(float and sink, 浮沈), interference wave, modificated wave, and phase angel. The Hi-soo type electronic manometer had no explanation of formational mechanism, significantly different with pulse wave which is early known and reported. The strength of Hi-soo type electric manometer is use of cuff pressing type sensor. Above all, the importance of electric manometer is reading the pulse movement accurately then expressing it as pulse wave. From now on the improvement of precise sensor should make a progress.

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Study of Discussion for Pulse Diagnosis of Meridian System seen by Research Assignment of the Small and Large Intestine in Wrist Pulse-taking Method (寸口脈의 小腸, 大腸 配屬 論議로 바라본 脈診의 經絡診斷 연구)

  • Hwang, Chi Hyuk;Kim, Myung Hyun;Kim, Byoung Soo
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.29 no.3
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    • pp.240-245
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    • 2015
  • Pulse diagnosis, the most popular diagnostic tool in traditional Korean medicine, had had many forms but had been fixed on using wrist pulse and placing internal organs on Cun, Guan and Chi(寸 關 尺). Wang Shuhe(王叔和) suggested placing six viscera(六腑) on Cun, Guan and Chi based on relationship between external and internal meridian vessel, and Zhang Jiebin(張介賓) criticized his suggestion and insisted that pulse diagnosis should be based on the organ system. But the origin of pulse diagnosis which can be found in "(Huangdi's) Internal Classic(黃帝內經)" is a tool mainly for diagnosis of not internal organ system but meridian system. Most of material about pulse diagnosis after Ming dynasty(明代) reinterpreted pulse diagnosis in the aspect of organ system, So there has to be additional discussion about it.

Retrospective Clinical Study of Pulse Wave Characteristics According to Healthy State Level in Sasang Constitution (사상체질 완실무병(完實無病) 수준에 따른 맥파(脈波) 특성의 후향적 임상 연구)

  • Su-Hyun Kim;Jun-Yong Park;Ho-In Kim;Jong-Cheon Joo
    • Journal of Sasang Constitutional Medicine
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    • v.35 no.4
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    • pp.1-9
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    • 2023
  • Objectives This study is designed to examine the relationship between healthy state (完實無病) of Sasang constitution and pulse wave (脈波). Methods The subjects were 100 patients who were diagnosed with Sasang constitution and underwent pulse analyzer test. The status of urination, defecation, perspiration, and digestion was classified as good, intermediate, and poor. The power, depth, speed, and roughness of pulse waves (脈波) were analyzed. Results Patients with poor digestion had relatively powerless pulse wave (無力脈). Soeumin patients had a higher rate of poor digestion compared to other constitutions. Soyangin patients had a higher rate of poor perspiration compared to other constitutions. Soyangin with poor defecation had relatively choppy pulse wave (澁脈), and poor perspiraton had relatively slippery (滑脈). Soeumin patients with poor digestion had relatively powerless pulse wave (無力脈). Conclusions The pulse wave of poor healthy state (完實無病) is an expression of a pathological syndromes (病證) caused by lack of or damage to healthy energy (保命之主). It was concluded that the pulse analyzer can be used to evaluate healthy state (完實無病).