• 한국방재학회:학술대회논문집
• /
• 2009.02b
• /
• pp.113.2-113.2
• /
• 2009

• Proceedings of the Korean Ceranic Society Conference
• /
• 2003.04a
• /
• pp.160.1-160
• /
• 2003

• Proceedings of the Korean Ceranic Society Conference
• /
• 2003.04a
• /
• pp.188.2-188
• /
• 2003

• Journal of the korean academy of Pediatric Dentistry
• /
• v.41 no.1
• /
• pp.47-53
• /
• 2014

Dentin dysplasia is a rare hereditary disturbance characterized by a dental anomaly of the dentin layer. The etiology is unclear, and this rare hereditary disturbance affects approximately one person in every 100,000. Dentin dysplasia is classified into two types, radicular dentin dysplasia as type I and coronal dentin dysplasia as type II. The characteristic clinical findings of dentin dysplasia type I are normal appearance of the crown and hypermobility of teeth. The radiographic findings are obliteration of all pulp canals, short, blunted and malformed or absent roots. Dentin dysplasia type II as coronal dentin dysplasia shows similar clinical features with dentinogensis imperfecta. This report shows a case of dentin dysplasia type I affecting one family except the father. The clinical, radiographic and histopathologic findings of this family are presented. Dentin dysplasia type I is difficult to diagnose unless dentist performs radiographic examination. If the affecting patient does not get regular dental care, dental abscesses or cysts may form spontaneously without caries. In this regard, early diagnosis is important to prevent premature loss of dentition.

• Journal of the korean academy of Pediatric Dentistry
• /
• v.35 no.4
• /
• pp.737-743
• /
• 2008

Regional odontodysplasia is a relatively rare developmental anomaly of dental hard tissue with characteristic clinical, radiographic and histologic features. It requires a continuous and multidisciplinary approaches, and the aim of treatment for these patients should include aiding mastication, improving aesthetics, maintaining normal vertical dimension and space, allowing normal jaw growth and eruptional management of affected teeth. This report describes three cases of regional odontodysplasia with 2-5 years of follow-up. Conservative treatment is chosen to preserve the affected teeth as long as possible, and periodic radiographic and clinical examination was done. During this time, all teeth except one showed progressive development. An interesting finding observed in our cases was that each tooth even in the same person showed different degree of tooth development and eruption rate. Thus, we colcluded that the treatment plan for regional odontodysplasia should be conservative and individualized and based on the assessment of each tooth.

• ANNALS OF ANIMAL RESOURCE SCIENCES
• /
• v.29 no.4
• /
• pp.142-149
• /
• 2018

In this study, 844 Hanwoo proven bulls in South Korea (called KPN) were classified into 8 groups based on their birth year. Microsatellite (MS) marker information for paternity identification of each individual is provided at the homepage of the National Agricultural Cooperation Federation, Korea (NACF) and is mainly for the analysis of genetic diversity and structural changes. The polymorphism analysis of KPN whole groups revealed the average number of alleles in each marker (number of alleles), the expected heterozygosity ($H_{ex}$), the observed heterozygosity ($H_{ob}$), the polymorphism information content (PIC) and the $F_{is}$ mean as 10.54, 0.764, 0.773, 0.727 and -0.014, respectively. For group D, with the birth year 2004-2005, the $H_{ex}$ and $H_{ob}$ were 0.777 and 0.792 respectively and the PIC was 0.740. The $H_{ex}$ of group C and D, with birth years 2003-2004 and 2007-2008, respectively, were greater than $H_{ob}$. In all the other groups, $H_{ob}$ was greater than $H_{ex}$. Genetic composition and structure were analyzed using STRUCTURE software. According to the analyzed results, the generation of Hanwoo groups showed changes in specific genetic components according to the flow. It was confirmed that the continuous improvement in the Hanwoo affects the genetic structure of the proven bulls group. The results of this study are expected to be used for enhancing the efficiency of Hanwoo improvement project.

• 한국어정보학회:학술대회논문집
• /
• 2016.10a
• /
• pp.285-290
• /
• 2016

한국어는 형태론적으로 굴절어에 속하는 언어로서, 어휘의 형태가 문장 속에서 문법적인 기능을 하게 되고, 형태론적으로 풍부한 언어라는 특징 때문에 조사나 어미와 같은 기능어들이 다양하게 내용어들과 결합한다. 이와 같은 특징들은 한국어를 대상으로 하는 구 기반 통계적 기계번역 시스템에서 데이터 부족문제(Data Sparseness problem)를 더욱 크게 부각시킨다. 하지만, 한국어의 몇몇 조사와 어미는 함께 결합되는 내용어에 따라 의미는 같지만 두 가지의 형태를 가지는 이형태로 존재한다. 따라서 본 논문에서 이러한 이형태들을 하나로 표준화하여 데이터부족 문제를 완화하고, 베트남-한국어 통계적 기계 번역에서 성능이 개선됨을 보였다.

• Journal of Oral Medicine and Pain
• /
• v.31 no.2
• /
• pp.121-126
• /
• 2006

Hypohidrotic ectodermal dysplasia refers to a group of disorders with the following common features : thin, sparse or absent hair, missing or peg-shaped teeth and inability to sweat adequately. Both the primary and secondary dentition are affected. Teeth may be absent (anodontia) or reduced in number (oligodontia) and abnormally shaped. In case, A 5-year-old man presented with hypohidrosis and dry skin. He had no teeth in mouth. We report a case of hypohidrotic ectodermal dysplasia with anodontia.

• Korean Journal of Environment and Ecology
• /
• v.24 no.3
• /
• pp.258-263
• /
• 2010

To study on the typical domatia structure, the leaves of six broad-leaved tree species were examined. Domatia of the leaves of the broad-leaved trees is the defense strategies against hervivory of many broad-leaved tree species. We observed four type domatia; Pouch type, Tuft type, Pocket type, and Pocket + tuft type. This result suggests that broad-leaved trees have develope leaf domatia structures for mutualism with predatory mites.

• Annual Conference on Human and Language Technology
• /
• 2016.10a
• /
• pp.285-290
• /
• 2016

한국어는 형태론적으로 굴절어에 속하는 언어로서, 어휘의 형태가 문장 속에서 문법적인 기능을 하게 되고, 형태론적으로 풍부한 언어라는 특징 때문에 조사나 어미와 같은 기능어들이 다양하게 내용어들과 결합한다. 이와 같은 특징들은 한국어를 대상으로 하는 구 기반 통계적 기계번역 시스템에서 데이터 부족 문제(Data Sparseness problem)를 더욱 크게 부각시킨다. 하지만, 한국어의 몇몇 조사와 어미는 함께 결합되는 내용어에 따라 의미는 같지만 두 가지의 형태를 가지는 이형태로 존재한다. 따라서 본 논문에서 이러한 이형태들을 하나로 표준화하여 데이터부족 문제를 완화하고, 베트남-한국어 통계적 기계 번역에서 성능이 개선됨을 보였다.