• 제목/요약/키워드: BL

검색결과 2,842건 처리시간 0.025초

토사자(兎絲子) 약침(藥鍼)이 자연발증(自然發證) 고혈압(高血壓) 백서(白鼠)의 혈압(血壓)에 미치는 영향(影響) (Effects of Aqua-acupuncture of Semen Cuscutae on the Blood Pressure in Spontaneously Hypertensive Rats)

  • 유윤조;한정우;육태한;이호섭
    • Journal of Acupuncture Research
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    • 제15권2호
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    • pp.349-356
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    • 1998
  • The aim of the experiments was to investigate the effect of Semen Cuscutae aqua-acupuncture at the meridian point BL 20(脾兪) and BL 23(賢兪) on the blood pressure, plasma renin activity, plasma levels of aldosterone and atrial natriuretic peptide (ANP) in spontaneously hypertensive rats (SHR). The results of this study were as follows: 1. Systolic blood pressure was decreased significantly after Semen Cuscutae aqua-acupuncture at the meridian point BL 20, BL 23. 2. Plasma renin activity was increased significantly after Semen Cuscutae aqua-acupuncture at meridian point BL 23, BL 20. 3. Plasma levels of aldosterone was increased significantly after Semen Cuscutae aqua-acupuncture at the meridian point BL 20. 4. Plasma levels of atrial natriuretic peptide (ANP) was increased significantly after Semen Cuscutae aqua-acupuncture at the meridian point BL 23, but it was decreased significantly after Semen Cuscutae aqua-acupuncture at the meridian point BL 20. These results suggest that the changes of the depressor response after Semen Cuscutae aqua-acupuncture at the meridian point BL 20, BL 23 are related to the changes of the plasma renin activity, plasma levels of atrial natriuretic peptide (ANP) and aldosterone.

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부교감신경계의 분포와 배유혈(背兪穴)의 상관성 연구 (A Study on the Correlation between Parasympathetic Nerve System and Back-shu Points)

  • 금동호
    • 동의신경정신과학회지
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    • 제15권2호
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    • pp.37-44
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    • 2004
  • Objectives : The purpose of this report is a study on the correlation between parasympathetic nerve system and Back-shu points. Methods : We have studied about the correlation between anatomical distribution of parasympathetic nerve system and that of Back-shu points. Back-shu points are located on the back area as the acupoints of Bladder Meridian(BL), doing its own organic physical and pathological working and directly connected with its own organ. Results and Conclusions : 1. It is suggested that Back-shu points has correlation with parasympathetic nerve system could be Pangguanshu(BL28), Zhonglushu(BL29), Baihuanshu(BL30), Ciliao(BL32), Zhongliao(BL33), Xialiao(BL34), Shangliao(BL31), Xiaochangshu(BL27), Baohuang,(BL53) Zhibian(BL54) etc. 2. We proved acupuncture treatment on the nearby spinal area could be one of the method that could stimulate parasympathetic nerve system. 3. The symptom of parasympathetic nerve system's disorder is similar to Back-shu points' chief efficacy a lot. And we proved the Back-shu points which has relation with parasympathetic nerve system as distribution of nerve system are only located at sacral area.

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생물안전 4등급(BL4) 실험시설의 동선계획에 관한 연구 (A Study on the Circulation System of Biosafety Level 4 Laboratory Facilities)

  • 권순정;최홍빈
    • 의료ㆍ복지 건축 : 한국의료복지건축학회 논문집
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    • 제17권1호
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    • pp.23-32
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    • 2011
  • Recently, with the advent of high risk infectious agent such as the Ebola virus, SARS, special research facilities dealing with such dangerous pathogenic are drawing attention gradually. Especially, this kind of facilities can be called BL4(Biosafety Level 4) facility. At the moment, Korean government is going to construct BL4 institute in order to handle efficiently such kind of pathogen. However, there are no proper design guidelines for BL4 facility. This paper proposes circulation system of BL4 facility on the basis of analysis of existing BL4 guidelines of Canada, and Korean BL3 facilities. The outcomes of this study are as follows. At first, functional areas of BL4 facilities have been divided into three categories according to the hazard level ; dangerous area, transitional area, and ordinary area. Secondly, circulation system of BL4 facility has been explored as a form of diagram according to the circulating subjects. These include human, laboratory animals, hazardous pathogen, equipments and cloth. This study has some limitations in that it lacks empirical evidences and concrete SOPs(Standard Operating Procedure). Despite of some weaknesses, it is expected to give some preliminary guidelines for the design of circulation system in BL4 facilities.

신유.지실 녹용약침이 뇌혈류역학에 미치는 영향 (Effects of Phamacopuncture Therapy Using Cervi Pantotrichum Cornu at BL23.BL52 on the Cerebral Hemodynamics in Rats)

  • 이석진;정현우
    • 동의생리병리학회지
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    • 제23권1호
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    • pp.50-56
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    • 2009
  • The present study was designed to investigate the effects of Phamacopuncture therapy using Cervi Pantotrichum Cornu (PC) at BL23 BL52 on the regional cerebral blood flow (rCBF) and mean arterial blood pressure (MABP) in normal rats, then the related mechanisms were also investigated. In addition, the present author also investigated the effects of phamacopuncture therapy at BL23.BL52 on the rCBF in cerebral ischemic rats. The results in normal rats were as follows; PC (3 mg/kg and 5 mg/kg) at BL23 BL52 significantly increased rCBF but decreased MABP. This result suggests that PC at BL23 BL52 significantly increased rCBF by dilating pial arterial diameter. Increase of PC (5 mg/kg)-induced rCBF was significantly inhibited by pretreatment with indomethacin (1 mg/kg, i.p.), an inhibitor of cyclooxygenase and methylene blue ($10{\mu}g/kg$, i.p.), an inhibitor of guanylate cyclase. Decrease of PC (5 mg/kg)-induced MABP was significantly increased by pretreatment with methylene blue but was decreased by pretreatment with indomethacin. These results suggested that the action of PC (5 mg/kg) was mediated by guanylate cyclase. The results in cerebral ischemic rats were as follows ; The rCBF was significantly and stably increased by PC (5 mg/kg) during the period of cerebral reperfusion, which contrasted with the findings of rapid and marked increase in Control group. In conclusion, these results suggest that phamacopuncture therapy using Carthami flos at BL23 BL52 can increase rCBF in normal state, and improve stability of rCBF in ischemic state. In addition, the present author also suggest that related mechanisms are involved in guanylate cyclase pathway.

Manifestation of Hybrid Vigour and Combining Ability in Polyvoltine $\times$ Bivoltine Hybrids of Silkworm, Bombyx mori L.

  • Rao, D.Raghavendra;Singh, Ravindra;Premalatha, V.;Kariappa, B.K.;Rekha, M.
    • International Journal of Industrial Entomology and Biomaterials
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    • 제4권1호
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    • pp.23-30
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    • 2002
  • The general and specific combining abilities and hybrid vigour of seven polyvoltine breeds [BL24, BL62, BL6S, BL67, BL68, BL69, and Pure Mysore (PM)] with five bivoltine breeds (NB4D2, CSR2, CSR5, CSR18 and CSR19) were evaluated in a line ${times}$ tester design by analysing six quantitative traits viz., fecundity, yield 110,000 larvae both by number and weight, cocoon weight, shell weight and cocoon shell ratio. ANOVA estimates showed significant effects for all the traits indicating the role of both additive and non- additive gene actions. Estimation of GCA revealed that the breed BL67 exhibited significant positive effects toy all the six traits followed by BL68 for four important economic traits viz., fecundity, cocoon weight, shell weight and cocoon shell ratio. Among testers, CSR5 showed significant GCA effects for five traits whereas CSR2 exhibited for shell weight and shell ratio. Three hybrids viz., BL67${times}$ NB4D2, BL67 ${times}$CSR5 and BL67${times}$ CSR19 excelled in four quantitative traits for SCA. Majority of the hybrids expressed positive hybrid vigour for cocoon yield/10,000 larvae by weight, cocoon weight and shell weight. Four hybrids namely PM ${times}$ NB4D2, BL67 ${times}$NB4D2, BL67${times}$ CSR5 and BL67${times}$ CSR19 manifesting positive hybrid vigour for five economic traits were adjudicated as best Heterotic hybrids and recommended for commercial exploitation to increase the silk yield.

옥수수 일차뿌리에서 TIBA가 brassinolide에 의해 유도된 굴중성 반응에 미치는 영향 (Effect of TIBA on the Brassiolide-induced Gravitropic Response in the Primary Roots of Maize)

  • 강병희;박지혜;김종식;장수철;김성기;김순영
    • 생명과학회지
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    • 제19권8호
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    • pp.1139-1144
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    • 2009
  • 옥수수 뿌리에 BL을 처리하면 양성굴중성 반응이 촉진되고, ethylene 생성도 증가한다는 것이 알려져 있다. BL에 의해 유도된 굴중성 반응과 ethylene 생성과의 관계를 조사하였다. ethylene 생성 억제제인 $10^{-4}$ M AVG를 처리하면 ethylene 생성은 90% 이상 억제되었으나, 굴중성 반응은 13% 정도 억제되었다. AVG를 BL과 함께 처리한 뿌리는 ethylene 생성은 약 60% 억제되었으나 굴중성 반응은 대조구 보다 증가하였다. 다른 ethylene 생성 억제제인 cobalt ion을 처리하면 ethylene 생성은 약 10% 정도 억제되었으나 굴중성 반응은 억제되지 않았다. BL과 cobalt ion을 함께 처리한 뿌리는 ethylene 생성이 억제되었으나 굴중성 반응은 증가되었다. 이러한 BL의 효과가 auxin transport와 관계가 있는지 알아보기 위하여 auxin transport inhibitor인 TIBA를 처리하였다. $10^{-5}$ M TIBA와 BL과 TIBA를 함께 처리한 경우(BL+TIBA), ethylene 생성은 각각 96%, 132% 증가하였으나 굴중성 반응은 모두 일어나지 않았다. 또한, BL, TIBA 그리고 IAA를 함께 처리한 뿌리 (BL+TIBA+IAA)는 음성굴중성 반응을 나타냈으나 뿌리 생장은 오히려 증가시켰으며, 이는 수평으로 있는 뿌리에서 IAA가 아랫면으로 transport 되지 못하고 윗면에 축적된 것을 의미한다. 이러한 결과는 BL이 뿌리 내에 존재하는 IAA의 차등분포에 영향을 주어 양성굴중성 반응을 촉진할 가능성을 제시한다.

지음(至陰)($BL_{67}$).상양(商陽)($LI_1$) 보법(補法) 자침이 백서(白鼠)의 뇌혈류량 및 혈압에 미치는 영향 (Effects of $Zhiyin$($BL_{67}$) and $Shangyang$($LI_1$) Reinforcement in Acupuncture on the Changes of Cerebral Blood Flow and Blood Pressure in Rats)

  • 천혜선;조명래
    • Journal of Acupuncture Research
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    • 제29권2호
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    • pp.73-88
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    • 2012
  • Objectives : The purpose of this study is to research the effects of acupuncturing $BL_{67}$ and $LI_1$ and determine the mechanism of action of acupuncturing $BL_{67}$ and $LI_1$ by measuring the changes of regional cerebral blood flow(rCBF) and mean arterial blood pressure(MABP) in normal rats and ischemic rats. Method : This study researched the effects of acupuncturing $BL_{67}$ and $LI_1$ on the change of rCBF and MABP. To determine the mechanism of action of acupuncturing $BL_{67}$ and $LI_1$, pretreatment with indomethacine and methylene blue was done. Result : 1. Acupuncturing $BL_{67}$ and $LI_1$ significantly increased rCBF and acupuncturing $BL_{67}$ and $LI_1$ induced increase of rCBF was significantly inhibited by pretreatment with indomethacin(1 mg/kg, i.p.), an inhibitor of cyclooxygenase, and methylene blue(10 ${\mu}g$/kg, i.p.), an inhibitor of guanylate cyclase. 2. Acupuncturing $BL_{67}$ and $LI_1$ decreased MABP and there was no significantly change of decrease of MABP on acupuncturing $BL_{67}$ and $LI_1$ by pretreatment with indomethacin and methylene blue. 3. These result suggested that acupuncturing $BL_{67}$ and $LI_1$ might significantly increase rCBF by dilating arterial diameter and mechanism of acupuncturing $BL_{67}$ and $LI_1$ might be mediated by cyclooxygenase and guanylate cyclase. 4. The rCBF was significantly and stably increased by acupuncturing $BL_{67}$ and $LI_1$ during the period of cerebral reperfusion in cerebral ischemic rats, which contrasted with the rapid and marked increase in the control group. Pretreatment with methylene blue significantly decreased rCBF by acupuncturing $BL_{67}$ and $LI_1$ during the period of ischemic state, increased rCBF during the period of cerebral reperfusion. These results suggested that the mechanism of acupuncturing $BL_{67}$ and $LI_1$ might be mediated by guanylate cyclase. Conclusion : Acupuncturing $BL_{67}$ and $LI_1$ can increase rCBF in normal state, and improve stability of rCBF in ischemic state. In addition, we suggested that mechanisms related with acupuncturing $BL_{67}$ and $LI_1$ was more involved in the guanylate cyclase pathway.

지실혈에서 지압의 방향에 따른 압통 역치의 변화 (Changes in the Pressure Pain Threshold by the Direction of Acupressure on Jisil(BL52))

  • 김재홍;홍금나;최민주
    • 한국자연치유학회지
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    • 제10권1호
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    • pp.26-32
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    • 2021
  • 목적: 경혈 지압에서 모든 혈의 가압 방향은 통상적으로 수직 방향이다. 그러나 지실혈(BL52)에서는 수직 방향이 배꼽 부위를 향하는지 몸통의 중심을 향하는지 명확하지 않다. 본 연구에서는 30명의 대상자의 BL52에 대한 지압의 방향에 따른 압통 역치를 측정하여 효과적인 지압 방향을 연구하는 것이었다. 방법: 대상자의 명문혈(GV4)을 중심으로 좌우 지실혈까지의 거리와 GV4와 배꼽까지의 거리를 측정하여 명문혈 좌우 지실혈이 배꼽을 지나는 타원을 이용하여 좌우 지실혈에서 배꼽 방향 및 몸통 중심 방향의 각도를 계산했다. BL52에 두 방향으로 가압하면서 대상자들이 통증을 느끼는 시점의 압력을 통증 역치로 하였다. 압통역치는 대상자의 좌우 BL52에서 3분 간격으로 3번씩 측정하였다. 결과: 대상자들의 좌우 BL52에서 측정된 압통 역치는 몸통 중심부를 향하여 가압할 때 상대적으로 유의하게 감소하였다(p < .05). BL52에서는가압방향이몸통의중심부를향할때압력에대해더예민한것으로나타났다. 결론: 주변보다 외부 자극에 더 예민한 경혈의 지압 요법에서, BL52에서는 몸통의 중심부를 향하도록 지압하는 것이 배꼽 방향으로 지압하는 것보다 효율적이라는 것을 시사한다.

PM Assisted, Brushless Wound Rotor Synchronous Machine

  • Ali, Qasim;Atiq, Shahid;Lipo, Thomas A.;Kwon, Byung-il
    • Journal of Magnetics
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    • 제21권3호
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    • pp.399-404
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    • 2016
  • This paper presents a new permanent magnet (PM) assisted topology for a recently introduced brushless wound rotor synchronous machine (BL-WRSM) [1]. The BL-WRSM had a dual-inverter configuration for generating a composite magneto motive force (MMF) with a fundamental component and a subharmonic component. The subharmonic component of the MMF is used for brushless excitation of the rotor. In this paper, additional PMs were introduced on the rotor of the BL-WRSM, making it a hybrid BL-WRSM. We also discussed the flux weakening operation for the hybrid BL-WRSM. The hybrid BL-WRSM offered advantages for starting the machine and provided better performance under full-load conditions. The finite element method (FEM) was used to analyze the performance of the hybrid BL-WRSM, and we compared its performance with BL-WRSM. Finally, prototypes were built with and without the PM-assistance, and experiments were conducted to demonstrate their performance.

STABILIZERS ON SHEFFER STROKE BL-ALGEBRAS

  • Katican, Tugce;Oner, Tahsin;Saeid, Arsham Borumand
    • 호남수학학술지
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    • 제44권1호
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    • pp.78-97
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    • 2022
  • In this study, new properties of various filters on a Sheffer stroke BL-algebra are studied. Then some new results in filters of Sheffer stroke BL-algebras are given. Also, stabilizers of nonempty subsets of Sheffer stroke BL-algebras are defined and some properties are examined. Moreover, it is shown that the stabilizer of a filter with respect to a/n (ultra) filter of a Sheffer stroke BL-algebra is its (ultra) filter. It is proved that the stabilizer of the subset {0} of a Sheffer stroke BL-algebra is {1}. Finally, it is stated that the stabilizer St(P, Q) of P with respect to Q is an ultra filter of a Sheffer stroke BL-algebra when P is any filter and Q is an ultra filter of this algebra.