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親電子性 芳香族 置換反應의 轉移狀態에 關한 理論的 硏究
朴柄珏,郭庚度,宋寧大 嶺南大學校 基礎科學硏究所 1991 基礎科學硏究 Vol.11 No.-
The transition state for electrophilic aromatic substitution was estimated by EHMO and CNDO/2 method. The transition state has been found to be δ-complex like model rather than π-complex like model for the substitution of a hydrogen in benzene with both proton and brominum ion. The electronic energies of δ-complex like models revealed the parallelism between the observed rate constant and the number of the substituted methyl groups in benzene. Consequetly, it can be generally thought that electrophilic aromatic substitution proceeds via δ-complex like model.
이동수,정강욱,황도연,이형화,김대현,김영성,곽동협 대한내과학회 2003 대한내과학회지 Vol.64 No.1
저자들은 장결핵 중 발생 부위상 드문 곳으로 알려진 직장에 발생한 고림성 결핵을 3예 경험하였기에 문헌고찰과 함께 보고하는 바이다. Isolated rectal tuberculosis commonly involves sigmoid, ascending, or transverse colon. Rectal involvement in tuberculosis is uncommon and poorly characterized. Isolated rectal tuberculosis was defined as focal lesions of rectum in the abscence of demonstrable lesions in the small and large bowel. Diagnosis of rectal tuberculosis was based on characteristic endoscopic appearance of lesions, histopathologic feature of tuberculosis in biopsy material and response to antitubercular therapy. Three patients with isolated rectal tuberculosis were seen at Kwak's hospital. The lesions observed was classified according to macroscopic morphology as follows: ulcerative, hypertrophic and ulcero-hypertrophic. Clinical manifestations were non-specific and consists of rectal bleeding, fever, weight loss, constipation and abdominal pain. One of the three patients had coexisting tuberculous pleurisy. Response to antitubercular chemotherapy was good. (Koeran J Med 64:96-100, 2003)
Kwak, Do Young,Kim, Gwang-Hui 충청수학회 1988 충청수학회지 Vol.1 No.1
In this paper, we study the multipliers of $A^p_q$ into $L^{p^{\prime}}$ when 0 < p' < p. For this purpose, we study the condition on the measure ${\mu}$ satisfying $A^p_q{\subset}A^{p^{\prime}}(d{\mu})$. It turns out that the quotient $k_q={\mu}/v_q$ over hyperbolic ball of radius less than 1 belongs to $L^s_q$, where $\frac{1}{s}+\frac{p^{\prime}}{p}=1$. For the proof, we replace the norm of $k_q$ by the Riemann sum, and then use a result of interpolation theory.
A Singular Nonlinear Boundary Value Problem
Kwak, Do Young,Choi, U Jin 충청수학회 1989 충청수학회지 Vol.2 No.1
Certain type of singular two point boundary value problem is studied. This contains a wider class of differential equations than [5]. An example is provided for comparison with earlier results.