저합금 탄소강 배관재의 다층용접 열영향부의 미세조직 및 열이력 해석

김태완,하준욱,김동진,김정태,Kim, Tae-Wan,Ha, Jun-Uk,Kim, Dong-Jin,Kim, Jeong-Tae 대한기계학회 2002 大韓機械學會論文集A Vol.26 No.3

The purpose of this study is to analyze thermal cycles and to investigate microstructures of heat affected zones for a low alloy carbon steel pipe under a multipass weld. The commercial finite element code SYSWELD is used to compute thermal cycles during multipass weld. The numerical results such as thermal cycles and size of heat affected zone are compared with those of the experiment and the two results show a good agreement. In addition, the microstructure and hardness are investigated from the weldment in detail. The weakest location is founded at intercritical region near the base metal.

사계 김장생의 예학과 사회정치사상

김태완 ( Tae Wan Kim ) 율곡학회 2010 율곡학연구 Vol.21 No.-

김장생은 이이의 학맥을 이어서 기호학파 또는 율곡학파의 문호를 연 인물이다. 그의 학문적 업적은 특히 예학에서 두드러지게 드러난다. 김장생은 이이의 성리학과 송익필의 예학을 계승하여 자신의 예학체계를 완성하였다. 김장생의 예학이론은 『상례비요』, 『가례집람』, 『의례문해』, 『전례문답』의 사부작에 들어 있다. 김장생은 이들 예서에서 자신의 실용적, 합리적, 주체적 예학 이론을 피력하였다. 김장생은 인조반정 뒤 집권한 서인의 정신적 지주로서 새로운 조선의 기틀을 예로써 확립하려고 노력하였다. 당시 점점 심각해지던 사회경제적인 모순에 대해서도 개혁을 시도하였다. 김장생 예학의 특성은 예의 보편성과 현실성의 조화를 이루고 국가전례에서도 종통을 확립함으로써 사적 예와 공적 예를 일관된 정신으로 묶으려고 한 것이다. 김장생은 종법의 확립을 통한 예제질서를 구축하여 인의와 예가 지배하는 사회를 꿈꾸었다. 그런 점에서 김장생의 예학은 조선사회를 새로이 구성하는 기획이었다. Kim Jang-saeng was the most famous scholar who succeeded in following Yi-i(李珥)`s studies and established the Ki-ho Schools or Yul-gok Schools in Cho-seon dynasty. In the Rye-hak(禮學 or a study of Rites), his academic achievements were distinctively demonstrated. He explored Yi-i`s Neo-confucian theory and Song Ik-pil(宋翼弼)`s Rye-hak and accomplished his own system of Rye-hak. His theories of Rye-hak were appeared in Sang-rye bi-yo(喪禮備要), Ka-rye jip-ram(家禮輯覽), Ui-rye mun-hae(疑禮問解) and Jeon-rye mun-dap(典禮問答) of a tetralogy. In the tetralogy, Kim demonstrated his practical, rational, and subjective theories of the Rye-hak. As an ideologue of Seo-in party, which held the political power of Cho-seon after the revolution of the King In-jo, Kim aspired to set up a new political system of Cho-seon in the pursuit of the Rye. He also tried to reform the severe socio-economic problems issues and matters that the Cho-seon was facing in those years. Kim particularly tried to harmonize the universality and peculiarity of Rye and in so doing it, he attempted to combine unify the individual or private with the public sides of Ryes. He also made developed a comprehensively full-fledge theory of Rye for the royal. He dreamt of a society which could had been possibly governed by the In-ui(仁義 or Humanity and Justice) and the Rye. What Kim`s Rye-hak envisioned, therefore, a master-plan of new society of Cho-seon.

뇌수막종과 동반된 뇌폐흡충증 - 증례보고 -

김태완,임창수,박상무,지문표,김재오,김정철,Kim, Tae Wan,Lim, Chang Soo,Park, Sang Moo,Chi, Moon Pyo,Kim, Jae O,Kim, Jung Chul 대한신경외과학회 2000 Journal of Korean neurosurgical society Vol.29 No.6

Cerebral paragonimiasis is an important parasitic infestation found in Eastern Asia, West Africa, and Central/South America. It is frequently associated with abscess, granuloma or cystic lesions in chronic stage. Chronic symptoms include seizure, visual disturbance, movement and perception disorders, usually resulting from the spaceoccupying lesions. The authors report a case of chronic cerebral paragonimiasis combined with meningioma. A 69-year-old man presented with generalized seizure and impaired consciousness. CT scan and MR image of the brain revealed two intracranial lesions ; one was cerebral paragonimiasis in the left temporo-occipital lobe, and the other a huge falx meningioma. Two lesions were successfully removed in staged operations and the generalized seizure was controlled after removal of the cerebral paragonimiasis.

Glyphosate Toxicity: III. Detection of QB Protein in Thylakoid Membrane of Tomato Apical Meristem Using an Antibody Raised from Hybrid Protein of psb A and lac Z Gene

김태완,니콜라스 암라인,Kim, Tae-Wan,Amrhein, Nikolaus 한국잡초학회 1995 Weed&Turfgrass Science Vol.15 No.3

Glyphosate를 토마토의 동화산물 공급부위에 처리하였을 때, 제초제결합 단백질인 QB 단백질을 Escherichia coli 내에서 ${\alpha}$-galactosidase가 발현되기 위해 lac Z 유전자의 3' 말단에 cloning된 시금치 psb A 유전자에 의해 발현되는 hybrid 단백질에 대한 항체를 형성시킨 후 이것을 이용하여 immunoblotting을 실시하였다. G1yphosate는 thylakoid 막의 Photosystem II내에 있는 D1 단백질의 붕괴에 영향을 주었다. LHC II 복합체내의 D1 단백질의 기능 이상은 glyphosate 의 다면발현적 효과였다. Glyphosate(N-[phosphonomethyl]glycine) applied to the assimilate-exporting leaves(i.e. third old leaf) of tomato(Lycopersicon esculentum Mil var. Moneymaker). Herbicide binding protein, QB protein(D1), has been immunoblotted using the antibodies raised against the hybrid-protein expressed by a part of spinach psb A gene cloned in frame with the 3'end of lac Z gene to allow expression of the ${\beta}$-galactosidase(EC 3.21.23) in Escherichia coli. Glyphosate has an effect on a turnover of D1 within photosystem II of thylakoid membrane. The dysfunction of D1 protein within light harvesting complex(LHC-II) seems to be a pleiotropic effect of glyphosate.

척추경막외 지방종증 - 증례보고 -

김태완,허용석,지문표,김재오,김정철,Kim, Tae Wan,Huh, Yong Suk,Chi, Moon Pyo,Kim, Jae O,Kim, Jung Chul 대한신경외과학회 2000 Journal of Korean neurosurgical society Vol.29 No.11

Althogh spinal epidural lipomatosis is relatively rare, it is a widely recognized complication of excess exogenous glucocorticoids. We report 4 cases of epidural lipomatosis. None of the patients had definitive history of steroid treatment, obesity, or diabetes mellitus, but all had sciatica and radiating pain. In all cases, the authors removed excess amount of epidural fat with surgery after which significant improvement of symptoms was noted.

Polyamine Alleviates Inhibition of O₂ Evolution by Cd for Spinich

김태완,이주영,이용세,황선웅,윤영상,Kim, Tae Wan,Lee, Ju-Young,Lee, Yong-Se,Hwang, Seon-Woong,Yoon, Young-Sang 한국토양비료학회 2000 한국토양비료학회지 Vol.33 No.4

카트뮴은 잎과 엽록체내 폴리아민함량을 증가시키지만 틸라코이드와 광포집체II내에서는 증가효과가 없었다. 카드뮴에 의해 새로 생합성된 폴리아민은 스트로마공간상에 분포하는 것으로 보였다. 폴리아민은 이미 포화되더라도 틸라코이드막에 결합하지는 않는 것으로 밝혀졌으며 엽록체내 putrescine과 spermine은 잎세포내에서 보다 각각 36배와 20배 적었던 반면 agmatine은 3.7배 적었다. 카드뮴의 산소방출 억제효과는 0.2mM spermine 첨가로 현저히 완화되었다. 폴리아민은 또한 시금치 틸라코미드에서 0.5mM 농도이하에서 산소방출을 촉진하였다. 이러한 촉진효과는 동일농도에서 단자엽보다는 쌍자엽에서 2배정도 높았다. 더욱이 쌍자엽 밀에서 상승효과는 putrescine보다는 agmatine처리에서 오히려 낮았다. 이러한 결과로부터 단자엽과 쌍자엽 식물간에 폴리아민의 산소방출 과정에서 다른 효능을 보임을 알 수 있었다. Polyamine concentrations were clearly enhanced in leaves and chloroplasts by Cd treatment, but not in thylakoid and PSII. It appeared that newly synthesized polyamines by Cd are distributed in stromal space. The accumulated polyamines in stromal space could not be adjacent to thylakoid membranes, suggesting that they are already saturated. The levels of putrescine and spermine were about 36 and 20 fold lower in chloroplast than in whole leaf cells respectively, whereas agmatine level was only 3.7 fold lower. The inhibitory effect of Cd nn $O_2$ evolving process was obviously alleviated by 0.2mM spermine supplement. Polyamines stimulated $O_2$ evolution within the range of 0.5mM in spinach thylakoids. It was also found that stimulating effect of polyamines is about 2 fold higher in dicothyledonous spinach than in monocotyledonous wheat at same concentrations. Furthermore, the enhanced activity of $O_2$ evolution was lowered rather by agmatine treatment than by putrescine treatment in wheat, suggesting a difference between monocot and dicot.

미국과 일본간 대학개방 사례

김태완,Kim, Tae-Wan 한국대학교육협의회 1994 大學敎育 Vol.70 No.-

숙주의 발아과정 동안 폴리아민 생합성과 Diamine 산화효소에 대한 스트론티움 효과

김태완,권영업,윤승길,Kim, Tae-Wan,Kwon, Young-Up,Yun, Seung-Gil Korean Society of Soil Science and Fertilizer 2003 한국토양비료학회지 Vol.36 No.6

본 연구는 고등식물 세포 내 대사작용에 대한 스트론티움의 역할을 구명하고자 수행되었다. Strontium에 의한 diamine 산화효소의 활성화로 putrescine의 함량은 감소하였다. 배축에서의 diamine 산화효소의 활성은 $0.5-1.8\;mol\;putrescine\;oxidation\;mg^{-1}\;protein\;min^{-1}$이었다. 자엽에서의 putrescine 감소는 적어도 diamine 산화효소에 의한 putrescine의 산화의 결과였다. 더 나아가 strontium 1-10 mM 처리에 의해 spermidine과 spermine 의 축적이 관찰되었다. strontium이 없는 대조구에 비해 spermldine은 2-3배 증가하였다. 이러한 증가는 생체중을 기준으로 하였을 경우뿐만 아니라 RNA를 기준으로 하였을 경우에도 동일한 결과였다. 결론적으로 이러한 결과는 strontium이 diamine 산화 및 polyamine 축적과 같은 polyamine의 대사와 관련되어있음을 보여주었다. Objective of this experiment was to investigate the role of strontium in intracellular processes in mung bean (Vigna radiata L.). Diamine oxidase (DAO) induction by $Sr^{2+}$ appeared to a decrease in putrescine levels correspondently. DAO activities in the hypocotyls were in a range of 0.5 to $1.8unit{\cdot}mg^{-1}\;protein{\cdot}min^{-1}$. The decrease in Put levels in the cotyledons might be partly resulted from Put degradation by DAO. It was observed that the accumulation of spermidine and spermine by $Sr^{2+}$ was in the range of 1 mM to 10 mM. Spermidine levels were 2 to 3 fold higher than in the absence of strontium. The increase in polyamine levels was observed not only on a basis of g fresh weight but also a RNA basis. These results demonstrated that the inhibitory action of $Sr^{2+}$ may be closely related with polyamine metabolism as well as diamine oxidation and polyamine accumulation.

기니피그 유문부 윤상근의 자발적 수축 및 서파에 대한 nitric oxide의 억제적 작용과 Ca²⁺ 및 K⁺ 통로의 관련성

김태완,라준호,양일석,Kim, Tae-wan,La, Jun-ho,Yang, Il-suk 대한수의학회 2001 大韓獸醫學會誌 Vol.41 No.4

It was investigated whether $Ca^{2+}$ and $K^+$ channels were involved in the inhibitory action of nitric oxide (NO) on the contractile and slow wave activity of guinea pig gastric antral circular muscle. The gastric antral circular muscle showed spontaneous phasic contraction and slow wave. NO donors, 3-morpholinosydnonimine hydrochloride (SIN-1, $0.01{\sim}100{\mu}M$) and S-nitroso-L-cysteine (CysNO, $0.001{\sim}10{\mu}M$), reduced not only the amplitude of phasic contraction but also that of slow wave in a concentration-dependent manner. Both the perfusion of $Ca^{2+}$-free solution and the administration of $Ni^{2+}$, a nonselective $Ca^{2+}$ channel blocker, reduced the phasic contraction as well as the amplitude and frequency of the slow wave. The effects of these treatments were similar to those of NO donors. Nifedipine ($10{\mu}M$), a specific L-type $Ca^{2+}$ channel blocker, abolished the phasic contraction and remarkably reduced the plateau of slow wave but had no profound effect on the upstroke of slow wave. In the whole-cell patch clamp mode, CysNO shifted the steady-state activation curve for L-type $Ca^{2+}$ current to the right and the steady-state inactivation curve to the left. Pretreatment of various $K^+$ channel blockers such as tetraethylammonium (1 mM), 4-aminopyridine (0.5 mM), glibenclamide (10 mM), apamin ($0.1{\mu}M$), and iberiotoxin ($0.1{\mu}M$) did not affect the inhibitory action of SIN-1. These results suggest that NO donors suppress mechanical and electrical activity of guinea pig gastric antral circular muscle by inhibition of L-type $Ca^{2+}$ channel rather than by activation of $K^+$ channels.

녹색 형광을 발하는 형질전환 닭 세계 첫 생산

김태완,Kim, Tae-Wan 한국가톨릭의료협회 2004 Health & mission Vol.2 No.-

머리 부리 등에서 녹색의 빛이 나는 닭이 생산되었다. 유전자를 주입한 계란에서 부화된 형광 닭이 생산됨으로써 닭의 형질전환이 공식적으로 처음 확인되었으며 인체 유용단백질의 대량생산 길이 열리게 되었다.