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Shirota, Kenji Korean Mathematical Society 2001 대한수학회논문집 Vol.16 No.3
The purpose of this paper is to propose a numerical algorithm for the problem of coefficient identification of the scalar wave equation based on a local observation on the boundary: Determine the unknown coefficient function with the knowledge of simultaneous Dirichlet and Neumann boundary values on a part of boundary. To find the unknown coefficient function, the unknown Neumann boundary value is also identified. We recast our inverse problem to variational problem. The gradient method is applied to find the minimizing functions. We confirm the effectiveness of our algorithm by numerical experiments.
Cangorins F-J , Five Additional Oligo-Nicotinated Sesquiterpene Polyesters from Maytenus Ilicifolia
Hideji Itokawa,Osamu Shirota,Hiroshi Morita,Koichi Takeya,Yoichi Iitaka 한국자원식물학회 1994 한국자원식물학회지 Vol.7 No.1
The isolation and structure elucidation Of five new oligo-nicotinated sesquiterpene polyesters with a dihydroagarofuran core from Maytenus ilicifolia, named cangorins F, G,H,1 and J [1-5], is described. The strurtures of these compounds, which possessed nicotinyl,benroyl, and areryl groups as esterifying moieties, were elucidaied by $^IH- and ^{13}C$ 수식 이미지-nmrspectroscopic studies, inrlusive of hereronuclear correlation, long-range correlation, and nOespectra, along with mass and cd spectral dara, and the X-ray crystallographic analysis of 1.
Kyohei Yasuno,Junichi Kamiie,Kinji Shirota 대한수의학회 2013 Journal of Veterinary Science Vol.14 No.2
The renal glomeruli of 12 male Osborne-Mendel (OM) rats 3to 24 weeks old were examined by electron microscopy. Effacement of podocyte foot processes (FPs) developed at 3weeks of age and became progressively worse over time. Loss or dislocation of the slit membrane was also found. Vacuoles and osmiophilic lysosomes appeared in the podocytes starting at 6weeks of age. Podocyte detachment from the glomerular basement membrane (GBM) was apparent at 18 weeks of age. Laminated GBM was occasionally observed in all animals. These features might lead to the development of spontaneous proteinuria and glomerulosclerosis in OM rats.
Masanori Ishida,Wataru Gonoi,Hidemi Okuma,Go Shirota,Yukako Shintani,Hiroyuki Abe,Yutaka Takazawa,Masashi Fukayama,Kuni Ohtomo 대한영상의학회 2015 Korean Journal of Radiology Vol.16 No.4
Computed tomography (CT) is widely used in postmortem investigations as an adjunct to the traditional autopsy in forensic medicine. To date, several studies have described postmortem CT findings as being caused by normal postmortem changes. However, on interpretation, postmortem CT findings that are seemingly due to normal postmortem changes initially, may not have been mere postmortem artifacts. In this pictorial essay, we describe the common postmortem CT findings in cases of atraumatic in-hospital death and describe the diagnostic pitfalls of normal postmortem changes that can mimic real pathologic lesions.