http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
( Hak Soo Seo ),( Jin Yong Jeong ),( Min Yeop Nahm ),( Sam Woong Kim ),( Sang Yeol Lee ),( Jeong Dong Bahk ) 생화학분자생물학회 2003 BMB Reports Vol.36 No.2
Previously, we reported the biochemical properties of RGAl that is expressed in Escherichia coli(Seo et al., 1997). The activities of RGAl that hydrolyzes and binds guanine nucleotide were dependent on the MgCl_(2) concentration. The steady state rate constant (k_(cat)) for GTP hydrolysis of RGAl at 2 mM MgCl_(2) was 0.0075±0.0001 min^(-1). Here, we examined the effects of pH and cations on the GTPase activity. The optimum pH at 2mM MgCl_(2) was approximately 6.0; whereas, the pH at 2 mM NH_(4)Cl was approximately 4.0. The result from the cation dependence on the GTPase (guanosine 5`-triphosphatase) activity of RGAl under the same condition showed that the GTP hydrolysis rate (k_(cat)=0.0353 min^(-1)) under the condition of 2mM NH_(4)Cl at pH 4.0 was the highest. It corresponded to about 3.24-fold of the k_(cat) value of 0.0109 min^(-1) in the presence of 2mM MgCl_(2) at pH 6.0.
Effects of electroacupuncture on oxaliplatin-induced neuropathic cold hypersensitivity in rats
Moon, Hak Jin,Lim, Bong-Soo,Lee, Dae-Il,Ye, Min Sook,Lee, Giseog,Min, Byung-Il,Bae, Hyunsu,Na, Heung Sik,Kim, Sun Kwang Springer-Verlag 2014 JOURNAL OF PHYSIOLOGICAL SCIENCES Vol.64 No.2
This study investigated whether and how electroacupuncture (EA) attenuates cold hypersensitivity (allodynia) in a rat model of oxaliplatin-induced neuropathic pain. Cold allodynia [evaluated by immersing the tail into cold water (4 A degrees C) and measuring the withdrawal latency] was induced 3 days after an oxaliplatin administration (6 mg/kg, i.p.). EA stimulation (2/100 Hz, 0.3-ms pulse duration, 0.2-0.3 mA) was delivered to ST36 acupoint or non-acupoint for 20 min. Low-frequency (2 Hz) EA at ST36 relieved cold allodynia more effectively than high-frequency EA at ST36 or low-frequency EA at non-acupoint. Naloxone (opioid antagonist, 2 mg/kg, i.p.) completely blocked such EA-induced anti-allodynia, whereas phentolamine (alpha-adrenergic antagonist, 2 mg/kg, i.p.) did not. Moreover, plasma beta-endorphin levels significantly increased right after the end of EA and subsequently decreased. These results indicate that low-frequency EA at ST36 in rats has a marked relieving effect on oxaliplatin-induced cold allodynia that is mediated by the endogenous opioid, but not noradrenergic, system.
Seo, Hak-Soo,Jeong, Jin-Yong,Nahm, Min-Yeop,Kim, Sam-Woong,Lee, Sang-Yeol,Bahk, Jeong-Dong Korean Society for Biochemistry and Molecular Biol 2003 Journal of biochemistry and molecular biology Vol.36 No.2
Previously, we reported the biochemical properties of RGA1 that is expressed in Escherichia coli (Seo et al., 1997). The activities of RGA1 that hydrolyzes and binds guanine nucleotide were dependent on the $MgCl_2$ concentration. The steady state rate constant ($k_{cat}$) for GTP hydrolysis of RGA1 at 2 mM $MgCl_2$ was $0.0075{\pm}0.0001\;min^{-1}$. Here, we examined the effects of pH and cations on the GTPase activity. The optimum pH at 2 mM $MgCl_2$ was approximately 6.0; whereas, the pH at 2 mM $NH_4Cl$ was approximately 4.0. The result from the cation dependence on the GTPase (guanosine 5'-triphosphatase) activity of RGA1 under the same condition showed that the GTP hydrolysis rate ($k_{cat}=0.0353\;min^{-1}$) under the condition of 2mM $NH_4Cl$ at pH 4.0 was the highest. It corresponded to about 3.24-fold of the $k_{cat}$ value of $0.0109\;min^{-1}$ in the presence of 2 mM $MgCl_2$ at pH 6.0.
염욕에 의한 강의 Boro-Aluminizing에 관하여
이용학,이민용,양훈영 연세대학교 산업기술연구소 1981 논문집 Vol.13 No.1
본 실험에서는 硼砂熔融鹽중에 Al 또는 Al-B 合金을 첨가하여 浸硼處理할 때 B과 Al의 同時浸透 與否에 대하여 定量的으로 관찰하였고 또한 B과 A1을 차례로 침투시켰을 때 顯微鏡組織, 微小硬度, 耐磨耗性 및 耐高溫酸化性에 대하여 調査하였다. 그 결과 硼砂浴에 40% Al 또는 20% A1-B合金을 첨가하면 FeB와 Fe₂B의 두 層이 生成되었고 50% Al에서 B과 Al이 동시에 침투하였으며 60% Al, 50% Al-B에서 최대의 침붕층을 얻었다. 耐磨耗性 및 耐高溫酸化性은 alumin zing 후 boronizing한 試片에서 가장 좋은 결과를 얻었다. Effects of aluminum or aluminum-boron addition into molten borax on the boro-aluminizing of steel have been studied and effects of simultaneous or successive penetration of boron and aluminum on the microstructure, microhardness, wear resistance and heat resistance have also been studied. Two layers of FeB and Fe₂B were formed at 40% Al and 20% Al-B alloy in molten borax. Boron and aluminum were penetrated simultaneously at 60% Al addition. The thickness of boride layer was maximum at 60% Al and 50% Al-B alloy additions. Wear and heat resistance of boronized specimen after aluminizing showed the best results.
특발성 과호산구 증후군 환자의 치료 도중 발생한 간혈종 1례
이영태,김동기,박지훈,김윤정,김기향,박보민,권민정,김애란,이원식,주영돈,손창학 白中央醫療院 2005 仁濟醫學 Vol.26 No.1
Idiopathic hypereosinophilic syndrome is characterized by marked elevation of eosinophil count ( >1,500/㎣) in peripheral blood without explaining etiology. It shows tissue involvement in many organs such as liver, G-I tract, myocar dium, lung, skin, kidney and nerve. Some case of hypereosinophilic syndrome with hepatic involvement have been reported, but not much. We have recently experienced a case with idiopathic hypereosinophilic syndrome of a 40 year old man who presented with RUQ pain. By abdominal CT, ill- defined subcapsular hematoma was detected. Liver biopsy showed eosinophilic infiltration within the portal tract and sinusoid. Drain procedure and corticosteroid adminiiatbrought marked improvement of clinical manifestation, hematologic abnormality and radiologic abnormality.
이중훈,박근우,이성학,이민기 國立 昌原大學校 産業技術硏究所 1999 産技硏論文集 Vol.13 No.-
This paper presents the controller of a double parallel robot manipulator applied for deburring work. This is one of the least favored works because of dust, noise, vibration, and accidental injury. A serial robot manipulator has been limitedly applied to light-load deburring work due to the poor stiffness of the manipulator. A double parallel robot manipulator has been developed for a strong rigidity by stacking two parallel mechanisms. It can be applied to heavy-load deburring work with high stiffness. To apply the robot to cut the burrs on a unknown geometric surface, this research will develop an intelligent controller to measure bur track and cut it with a constant cutting force.
기대-불일치 패러다임에서 예상의 영향력에 관한 연구 : 브랜드 경험유무와 측정시점 시간간격의 조정적 역할
이학식,임지훈,구민정 한국방송광고공사 2005 광고연구 Vol.0 No.68
소비자 만족결정 과정을 설명하기 위하여 기대 - 불일치 패러다임이 개발된 이후 이 패러다임내의 연구단위들 간의 관계에 관해 많은 연구들이 수행되었다. 이러한 관계들 중에서 기대(본 연구에서는 예상)의 영향력은 여러 연구들에서 다르게 나타났다. 본 논문은 기대 - 불일치 패러다임 내에서 예상의 영향력이 브랜드 경험과 측정시점 시간간격에 따라 어떻게 달라지는지를 조사하기 위하여 수행된 두 연구결과를 보고한다. <연구 1>에서 특정 브랜드 유경험 소비자의 경우 예상은 지각된 성과에 정(正, +)의 영향을 미치지만 무경험 소비자의 경우 그 영향은 나타나지 않았다. 또한 유경험 소비자의 경우 예상은 지각된 성과와 예상일치성의 매개에 의해 만족에 영향을 미치지만 무경험 소비자의 경우 예상은 만족에 영향을 미치지 않는 것으로 나타났다. <연구 2>는 예상이 지각된 성과, 일치성, 그리고 만족에 미치는 영향이 예상 측정 시점과 지각된 성과, 일치성, 그리고 만족 측정 시점 간의 시간 간격에 따라 어떻게 달라지는지를 조사한 것이다. 이 연구에서 예상이 일치성에 미치는 영향력은 기대대로 시간간격이 긴 경우보다 짧은 경우에 더 크게 나타났다. 예상이 지각된 성과와 만족에 미치는 영향은 시간간격이 긴 경우보다 짧은 경우에 더 크게 나타났지만 그 차이는 통계적으로 유의적이지 않았다. After expectancy-disconfirmation paradigm was developed to explain the process of consumer satisfaction decision, a lot of studies were performed for the relationships of constructs in this paradigm. Among the relationships of those constructs, the influences of expectation(anticipation in this study) did not appear to be consistent in several studies. Two studies were conducted to investigates how brand experiences and measuring time interval moderate the influences of anticipation in the expectancy-disconfirmation paradigm. In the first study, (1) in the case of experienced consumers, anticipation appeared to positively influence perceived performance whereas in the case of unexperienced consumers, anticipation did not; and (2) in the case of experienced consumers, anticipation appeared to influence satisfaction with the mediation of perceived performance and congruency whereas in the case of unexperienced consumers, anticipation did not. The second study was regarding how the influences of anticipation on perceived performance, congruency, and satisfaction vary with the time interval between the time of measuring anticipation(t1) and the time of measuring perceived performance, congruency, and satisfaction(t2). In this study, as expected, anticipation appeared to influence congruency more in the case that the time interval was short than it was long. Although anticipation appeared to influence perceived performance and satisfaction more in the case that the time interval was short than it was long, the difference was not statistically significant.