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RISS 인기검색어
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- 저자 : 金洪律 (검색결과 4 건)
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Effectiveness of Helmet Cranial Remodeling in Older Infants with Positional Plagiocephaly
김홍율,김용욱,정윤규 대한두개안면성형외과학회 2014 Archives of Craniofacial Surgery Vol.15 No.2
Background: Management of positional plagiocephaly by wearing a cranial molding helmet has become a matter of growing medical interest. Some research studies reported that starting helmet therapy early (age 5 to 6 months) is important and leads to a significantly better outcome in a shorter treatment time. The aim of the present study was to evaluate the effectiveness of cranial remodeling treatment with wearing helmet for older infants (≥18 months). Methods: We conducted a retrospective study of 27 infants with positional plagiocephaly without synostosis, who were started from 2008 to 2012. Every child underwent a computerized tomography (CT) before starting helmet therapy to exclude synostosis of the cranial sutures and had CT performed once again after satisfactory completion of therapy. Anthropometric measurements were taken on using spreading calipers in every child. The treatment effect was compared using cranial vault asymmetry (CVA) and the cranial vault asymmetry index (CVAI), which were obtained from diagonal measurements before and after therapy. Results: The discrepancy of CVA and CVAI of all the patients significantly decreased after cranial molding helmet treatment in older infants (≥18 months) 7.6 mm from 15.6 mm to 8 mm and 4.51% from 9.42% to 4.91%. Six patients had confirmed successful outcome, and all subjects were good compliance patients. The treatment lasted an average of 16.4 months, was well tolerated, and had no complication. Additionally, the rate of the successful treatment (final CVA ≤5 mm) significantly decreased when the wearing time per was shorter. Conclusion: This study showed that treatment by cranial remodeling orthosis was effective if the patient could wear the helmet longer and treatment duration was somewhat longer than in younger patients, well tolerated in older infants and had no morbidity. This therapeutic option is available and indicated in these older infants before other cranial remodeling surgery.
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金英彩,金洪律 慶熙大學校 1998 論文集 Vol.27 No.-
The importance of forest ecosystem has been raised as the recognition of the environmental problem is increasing. This study was carried out to investigate biomass of each organs(stem, branch, needle) of Pinus Koraiensis plantation if Kwangjugun, Kyunggido, Korea. The maximum values of stem length, and biomass for stem, branch and needle were shown at 6 to 8m height layer. Tree form is conical as usual for typical conifers. This growth pattern shows that crown has been formed, developed and destroyed from time to time. The biomass for each of the organs was distributed as follows : 53.83% by stem, 27.63% by needle and 18.50% by branch. This indicates that most of the biomass are allocated to the bottom part of the organs, which contributes to conical shape of the tree.
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樹種의 差異가 樹冠通過雨, 樹幹流의 水質에 미치는 影響
陳鉉五,金英彩,金洪律,朱榮特,吳鍾敏 慶熙大學校 1997 論文集 Vol.26 No.-
The chemistry of precipitation, throughfall and stemflow throughout different components of forest stands were compared to broadleaved and coniferous forest stands common in the central part of Korea. Included this report is information on the distribution and chemistry of rainwater as it affects the characteristics of nutrient cycled as throughfall and stemflow in different stands. In all species. dissolved element concentrations showed increase precipitation < throughfall < stemflow, especially, Mg, K and SO_4 of throughfall and stemflow of coniferous forest were net increase in passing through the canopy, branch and bark. Both precipitaion and throughfall concentrations showed negative relation to on the other hand, pH of throughfall was positive relation to precipitation amounts. In coniferous stand, stemflow of low pH probably acts to accelerate the nutrient cycling of soil ecosystem
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김태현 ( Tai Hyun Kim ),박용원 ( Yong Won Park ),조래훈 ( Rae Hun Cho ),김홍율 ( Hong Yool Kim ),정병호 ( Byung Ho Jeong ) 대한화약발파공학회 2016 화약발파 Vol.34 No.2
도심지 암반터파기 작업시 암반을 파쇄 하는 데 있어서 가장 경제적이고 효율적인 방법으로 폭약을 사용한 발파방법이 주로 사용되고 있는데, 이와 같은 발파방법은 발파에 따른 암반의 파쇄 시 진동·소음의 발생 및 비산 등 발파공해의 발생요인으로 인해 보안물건 주변에서 많은 제약을 받고 있는 실정이며, 폭약을 기폭 시켜 주는 뇌관의 종류 및 방법에 따라 일회 발파공수의 제한, 일회 굴착 깊이 제한 등으로 일일 생산량감소에 따른 공사기간 증대에도 많은 영향을 미치게 된다. 따라서 본 시공사례는 국내에서 가용할 수 있는 뇌관을 선정하여 응용발파방법이 가능하도록 층상장약방법에 의한 발파패턴을 설계하여 도심지 특수구간에 대한 적용가능성을 평가하였다. A drill & blasting method using explosives is the most efficient way to break the rock in the urban projects. However, the blasting method cause vibration, noise and fly-rock as blast pollutions so that blasting wroks are restricted by adjacent structures such as apartment and residence houses. To conduct blasting works at near structures, the numbers of blast-holes a blast and the size of the blast are limited by kinds of detonators and initiation methods. So, the production rate is reduced and the construction period should be increased. Therefore, in this case the deck-charge blasting methods using available detonators in domestic market were designed and evaluated in order to confirm the application possibilities in specific urban sites.
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