• 제목/요약/키워드: Guan

검색결과 616건 처리시간 0.036초

심포기맥(K9) 지압과 내관(P6) 지압이 비의식하 진정 위내시경 대상자의 불안, 오심과 구역 및 생리적 변화에 미치는 효과 (The Effect of Pericardium Kimek (K9) and Nei-Guan (P6) Acupressure on Anxiety, Nausea, Retching, and Physiologic Changes in Patients Performed Unsedated Esophagogastroduodenoscopy)

  • 김지현;정계선
    • 동서간호학연구지
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    • 제23권1호
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    • pp.75-85
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    • 2017
  • Purpose: This study was conducted to examine the effects of Pericardium Kimek (K9) and Nei-Guan (P6) acupressure on relief of the anxiety, nausea, retching and physiologic changes (oxygen saturation, blood pressure, heart rate, temperature and respiration) in the patients undergoing unsedated esophagogastroduodenoscopy. Methods: A quasi-experimental research design was used. The participants were assigned into the listed three groups, i.e., the control group, the first experimental group (E1: K9 acupressure group) and the second experimental group (E2: P6 acupressure group). A total of 60 participants were included for analysis. Results: The severity of nausea (F=3.503, p=.037), the oxygen saturation (F=5.417, p=.007). and the respiration rate (F=7.270, p=.002) showed statistically significant differences in three groups. Conclusion: Based on the results of the present study, K9 acupressure with moxa pellets and P6 acupressure with wristbands (Sea-Band) are considered to be safe and an easy-to-apply intervention to relieve nausea and maintain the level of oxygen saturation and respiration rate in patients undergone unsedated esophagogastroduodenoscopy.

손목밴드를 이용한 내관지압이 중이수술 후 오심과 구토에 미치는 효과 (Effects of the Nei-Guan Acupressure by Wrist Band on Postoperative Nausea and Vomiting after Middle Ear Surgery)

  • 이명윤;민혜숙
    • 대한간호학회지
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    • 제38권4호
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    • pp.503-512
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    • 2008
  • Purpose: This study was to identify the effects of Nei-Guan accupressure using a wrist band on postoperative nausea and vomiting after middle ear surgery. Methods: The study design was a nonequivalent control group non-synchronized posttest design. Forty patients were assigned into two groups of 20 patients, the wrist band group and the control group. In the wristband group, acupressure was applied with a wrist band on the P6 point at both wrists from 30 min before to 24 hr after anesthesia. Results: The 1st hypothesis 'Applied wrist band groups will have a greater reduction in the nausea & vomiting grades by INVR than the control group' was accepted (t=2.303, p=.028). The 2nd hypothesis 'The Applied wrist band groups will have a greater reduction in the occurrence of nausea & vomiting than the control group' was partly accepted. The 3rd hypothesis 'The applied wrist band group will have a greater reduction in injection of antiemetics for 24 hr. post anesthesia than the control group' was rejected. Conclusion: Acupressure on the P6 point using a wrist band is effective to alleviate nausea for middle ear surgery patients.

A Singular Value Decomposition based Space Vector Modulation to Reduce the Output Common-Mode Voltage of Direct Matrix Converters

  • Guan, Quanxue;Yang, Ping;Guan, Quansheng;Wang, Xiaohong;Wu, Qinghua
    • Journal of Power Electronics
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    • 제16권3호
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    • pp.936-945
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    • 2016
  • Large magnitude common-mode voltage (CMV) and its variation dv/dt have an adverse effect on motor drives that leads to early winding failure and bearing deterioration. For matrix converters, the switch states that connect each output line to a different input phase result in the lowest CMV among all of the valid switch states. To reduce the output CMV for matrix converters, this paper presents a new space vector modulation (SVM) strategy by utilizing these switch states. By this mean, the peak value and the root mean square of the CMV are dramatically decreased. In comparison with the conventional SVM methods this strategy has a similar computation overhead. Experiment results are shown to validate the effectiveness of the proposed modulation method.

Interpretation of Adaptational Environment of the genus Trapa in Korea Through peat deposit

  • Lee, Jin-Hee;Kim, Dae-Jae
    • 한국환경생태학회지
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    • 제29권1호
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    • pp.69-80
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    • 2015
  • Studies on Trapa of Korean, Japanese, and Chinese origins have been generally limited to currently living Trapa, thereby demonstrating the lack of phylogenetic approaches. In the present study, we conducted a numerical taxonomic study on 34 Korean origin Trapa species newly discovered in peat deposits. By using the numerical taxonomy as well as geological data, we created an appearance map based on the periods and taxonomic groups of the Korean Trapa. Further, by using this appearance map, we reviewed the limitations that exist in the taxa and simultaneously discussed the adaptational environment of Trapa in each period. Although other studies have discussed new variants of Trapa worldwide, including T. litwinowii V. vassil. var. chihuensis S.F.Guan & Q.Lang of China (Guan and Lang, 1987), the present study is significant because it provides data on the origin of Korean Trapa species. The availability of such data is essential in determining the adaptational environment of the presently living Trapa. To our knowledge, this is the first report of approximately 10 newly discovered and other presently living species of Trapa. Further, the appearance map in the present study allows the use of the 10 newly discovered species and variants of 34 Trapa species indigenous to South Korea for over 1000 years, for a comparison with the currently living Trapa species. Thus, the present study results could serve as important basic data to understand the adaptational environment of the genus Trapa. from the past to the present in Korea.

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

  • 황치혁;김명현;김병수
    • 동의생리병리학회지
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    • 제29권3호
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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.