
http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
동맥혈액채취를 위한 위팔동맥 천자 후 발생한 허혈성 신경병증 1예
박재현,김준성,오주선,정명은 대한근전도전기진단의학회 2009 대한근전도 전기진단의학회지 Vol.11 No.2
Ischemic monomelic neuropathy (IMN) is an infrequently recognized type of ischemic neuropathy produced by shunting blood or acute noncompressive occlusion of the major proximal limb artery. IMN is seen almost exclusively in diabetic hemodialysis patients. We report a case of ischemic monomelic neuropathy occurring after brachial artery puncture for arterial blood sampling. The patient was a 1-monthold female baby born at 34 weeks gestation. Right brachial artery was punctured for routine arterial blood sampling. After that her right forearm was discovered to be cyanotic. We found decreased brachial artery blood flow by doppler ultrasonography and thus performed emergency angioplasty. Thirteen days after angioplasty, electrodiagnostic study showed multiple peripheral nerve injuries of median, ulnar and radial nerves. Six months later, her forearm was fully recovered clinically and electrophysiologically.
박재현,손미랑,조대원,강상욱,손호진 한국공업화학회 2017 한국공업화학회 연구논문 초록집 Vol.2017 No.1
In order to understand the relation between the narrowing of emission band and structural changes, we synthesised tetradentate Pt-complexes; Pt-1 has directly connected two carbazole (Cz) moieties, Pt-2 has additional two methyl groups to Pt-1, and Pt-3 is one Cz moiety. The absorption and emission spectra of Pt-1 are identical with those of Pt-2. The emission of Pt-3 observed at shorter wavelength compared to others. The 0-0 vibronic band of all Pt-complexes was quite intense compared to the 0-1 vibronic band, which may due to the restricted structure of tetradentate ligand. To determine the cause of this spacing, we have carried out the theoretical study using the DFT calculation and the analysis of IR-spectra. Also, we have carried out transient Raman experiment to get the vibronic informations of excited Pt-1. The HOMO orbital is populated Cz moiety, but the LUMO orbital is localized at the terminal pyridine moiety and the terminal moiety is less restricted and more flexible.
박재현,조양진,김소연,조대원,강상욱,손호진 한국공업화학회 2017 한국공업화학회 연구논문 초록집 Vol.2017 No.1
The heteroleptic Ir(III) complexes containing of two dfppy ligands and an ancillary ligand (dpq or tpphz) was synthesized to obtain evidence of the ILET process that can be observed in the presence of energetically different ligands in metal complexes. From the temperature dependency results, we found that the rigidity of the environment is a very important factor affecting the ILET process. Indeed, the ILET appears to require some structural distortion because this transition is forbidden when the ligands are arranged in an orthogonal geometry. Complex 1 bearing the tpphz ancillary ligand showed slower ILET dynamics than complex 2 with the dpp ligand. Both of 1 and 2 constitute good models for understanding the ILET dynamics based on TA spectroscopy with excitation with different wavelengths.
유동층 건조기에서 석탄의 수분함량이 비산량에 미치는 영향
박재현,선도원,배달희,조성호,박영철,신종선,박재혁,김기영 한국공업화학회 2015 한국공업화학회 연구논문 초록집 Vol.2015 No.1
저등급 석탄은 가채 매장량이 많고, 전 세계에 널리 분포되어 있기 때문에 이를 활용하고자 하는 연구가 최근 진행 중에 있다. 하지만 저등급 석탄은 높은 수분함량으로 인하여 낮은 발열량과 빈번한 자연발화로 인하여 사용이 제한되어 왔다. 이 문제를 해결하고자 고수분 저등급석탄에 포함된 수분을 제거하는 건조 공정이 개발되고 있다. 본 연구에서는 저등급 석탄 건조 동안에 저등급 석탄의 수분함량이 비산량에 미치는 영향을 확인하였다. 본 연구에 사용한 유동층 건조장치는 내경이 80 mm이고 높이가 500 mm이며 유동화 모습 및 비산되는 석탄을 시각적으로 관찰하기 위하여 Pyrex로 제작하였다. 실험에 사용한 인도네시아산 아역청탄의 초기 수분함량은 약 28%이며, 석탄의 수분함량을 변수로 하여 실험하였으며, 각 실험 조건에서 사이클론으로 비산되는 석탄의 양과 평균입경을 측정하였다.