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Nishimura,Y.,Suzuki,S.,조백현,박진수,김병묵 大韓成形外科學會 1995 Archives of Plastic Surgery Vol.22 No.4
The general principle of treating a giant pigmented nevus is total resection of the lesion to prevent malignant change, followed by coverage of the skin defect with either flap or free skin graft. The problem in giant pigmented nevus lies in that enough skin to cover such a large defect is not readily available. The authors have developed a bilayer artificial skin composed of an upper silicone sheet and a lower collagen sponge sheet, and have applied it clinically with success. In using the artificial skin, the lower sheet is spontaneously converted to synthesized connective tissue matrix similar to dermis through the invasion of fibroblasts and capillaries, which allows for an easy take of a secondary skin graft. There is no significant histological and cosmetic difference between the area treated with the artificial skin plus very thin split thickness skin graft(0.2mm) and that treated with ordinary split thickness skin graft(about 0.5mm). Our recent experience with the use of an artificial skin combined with a very thin split thickness skin graft would be the best solution of the problem, at least at this stage of the research development, because it permits harvesting skin graft from the same site twice or more times, multiplying the usable skin areas in effect.
Gradient-Based Complex Adaptive IIR Notch Filters for Frequency Estimation
Nishimura, Shotaro,Jiang, Hai Yun 대한전자공학회 1996 APCCAS:Asia Pacific Conference on Circuits And Sys Vol.1 No.1
In this paper, we present a new structure for complex adaptive IIR notch filter which is useful for the detection of complex sinusoids in communication and radar systems. The proposed structure is based on the direct form first-order complex notch filter using gradient-based algorithm. A quantitative analysis for convergence properties is developed. It has been shown that the convergence speed does not depend on the variance of input white noise. The effects of colored Gausaian noise to convergence speed have been analyzed. By using the proposed first-order section, a new cascaded structure for complex adaptive notch filter is also shown. The results of computer simulation are shown which confirm the theoretical prediction.
NISHIMURA Yoshimasa,PARK RO Kyung(박노경) 한국무역학회 2000 國際學術大會 論文集 Vol.2000 No.12
The purpose of this paper is to examine the following two things: First, by using DEA(Data Envelope Analysis) method. we measure the productive efficiency of 26 Korea banks for 7 years(1993-1999) to examine the effects of bank M&A on efficiency, management and profitability index. Second. we compare the change of management index before and after bank M&A. Main results of this study are as follows: First, efficiencies of banks which merged insolvent banks are up except the Housing Bank. Efficiencies of actual M&4 banks are up except the Hanil Bank. For the sold banks, efficiency of Jeil Bank is down. However, that of Seoul Bank is up. Second. changed ratio of liquidity is up, but most of changed ratio of BIS and Fixed Asset are down. Third. 60%-70 % of banks are up in terms of ROA, and ROE.
Photodynamics of an excited triplet state in the presence of molecular oxygen cluster
Nishimura, Yoshinobu Korean Society of Photoscience 2013 Rapid communication in photoscience Vol.2 No.3
Bulk nanobubble is one of the nanoscopic gaseous state found in the solution. We measured transient absorption spectra of eosin Y in the excited triplet state ($^3EY^{2-*}$) to elucidate differences in the dissipation process of the bulk nanobubble of oxygen molecule at air pressure. The time dependence of the oxygen dissipation process was classified three time domains (P1, P2 and P3). The comparison of ordinary bubbling method gave different results at P3 in contrast to similar results at P1 and P2, indicating the existence of characteristic dissolving state in the case of nanobubble.
Childcare considerations for children with strabismus
NISHIMURA Miho,OKOSHI Kazumi 아시아장애사회학회 2011 아시아장애사회학연구 Vol.11 No.-
Strabismus is an eye disease found in one out of every 200 persons. In majority of cases, treatment of strabismus is done in childhood. Therefore, it is necessary for child-care providers to take proper care of children with strabismus at kindergartens and day -care centers Treatment of strabismus is conducted for two main objectives. One is curing the eyesight and the other is esthetic appearance ‘ Methods of curing the eyesight include, correcting the difficulty faced in seeing by using glasses, and occlusion therapy, where normal eye is shielded or covered using a patch or an eye drop, so that the child can use the fellow eye more and more and finally get used to seeing things with both the eyes With regard to childcare considerations for children with strabismus, we highlighted the following four points , 1. Understanding the peculiar way of seeing things, 2. Assisting the cure of strabismus, 3. Fostering the understanding of other children in surrounding about strabismus, and 4. Early detection of strabismus. It will be necessary, meas ures for increasing a w areness of child-care providers about children with strabismus, and development of educational material for understanding the treatment of strabismus.such as , development of picture books for understanding strabismus ’
Nursing of Children Who Received Shunt Surgery to Treat Hydrocephalus
NISHIMURA Miho,AJIMI Akiko,TKUDA Katsumi 아시아장애사회학회 2008 아시아장애사회학연구 Vol.8 No.-
Hydrocephalus is a condition in which cerebrospinal fluid accumulates in the section of the brain called ventricle in much larger volumes than normal, causing the ventricle to be enlarged and the brain to be under pressure. Many of the children with hydrocephal us receive a surgery called the shunt surgery. There several points to be noted when children with shunt live our normallifestyle. In many cases of hydrocephalus emerging in childhood, it is treated by ventriculo.peritoneal shunt (V.P shunt) surgery. A shunt comprises of a valve and a catheter. By applying an external force , the valve and the catheter may be subjected to pressure. It may case the catheter to become deformed and clogged or damaged. Thus physical activities which may apply pressure on the valve or the catheter or cause some objects to hit them should be avoided. Since the pressure of a programmable valve is adjusted using magnetic force , it may be affected by magnets and so forth. Shunt system can cause shunt troubles. If shunt occlusion or shunt infection occurs, the patient will have symptoms such as headache, vomiting, dizziness, frustration, red swelling of the skin along the catheter and inability to keep balance of the body. If the above symptoms appear, we must suspect a shunt trouble. It may be necessary to caution other children to be careful with a child with shunt when they live together in kindergartens or nursery schools. When nursing children with shunts, the following precautions are required: CD Do not hit the valve or catheter in any way during physical activities. @ Avoid bringing magnets from coming into contact with the valve and strong magnetic fields. @ Do not miss the signs of shunt troubles. @ Inform other children to be careful.