• 한국정보디스플레이학회:학술대회논문집
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• 2008.10a
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• pp.1269-1271
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• 2008

We find some array mura are caused by S/D bridge or channel open in 4 mask process. The gray tone PR thickness non-uniformity is the main reason of these defects. By the adjustment of exposure and dry etch parameters, S/D bridge and channel open ratio drops by 10.87%.

• Journal of the Korean Association of Oral and Maxillofacial Surgeons
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• v.33 no.4
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• pp.386-390
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• 2007

This is about the case of loss of multiple teeth and alveolar bone caused by trauma, which needed alveolar bone augmentation before implant treatment. Alveolar bone was reconstructed using iliac bone graft, and thereafter first implant surgery was followed by consolidation period of 3 months. Iliac bone resorption was observed at the time of implant placement. And that resorption was more in the horizontal dimension than in the vertical. We conclude that additional treatment planning(e.g. using alveolar distraction osteogenesis or tissue expander) should be considered besides bone graft for vertical alveolar bone augmentation. For both maxilla and mandible, prosthodontic treatment was carried out $4{\sim}5$ months after implant placement. To compensate alveolar bone deficiency, partial hybrid overdenture on maxilla and implant-supported fixed bridge on mandible were fabricated, and the total treatment was finished.

• Journal of Genetic Medicine
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• v.5 no.2
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• pp.136-138
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• 2008

Townes-Brocks syndrome (TBS) is an autosomal dominant disorder with multiple malformations which include dysplastic ears, hearing loss, preaxial polydactyly and/or triphalangeal thumbs, imperforate anus, renal anomalies, congenital heart defects, and mental retardation. However, hypothyroidism is not a common feature of TBS. There have been only three reported cases of TBS associated with hypothyroidism. We report the first case of TBS associated with hypothyroidism in Korea.

• Archives of Plastic Surgery
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• v.32 no.3
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• pp.393-396
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• 2005

The cutaneous aspergillosis is one of the most common dermatologic manifestations of disseminated infections associated with the Aspergillus organisms, but the isolated primary cutaneous disease itself can rarely occur in an immunocompetent host. We report a case of the primary cutaneous aspergillosis on the scalp and the neck in a 39-year-old immunocompetent male patient. There was a single purulent ulcer surrounded by the erythematous indurated plaque on the scalp with multiple satellite papules and a multi-lobulated granulomatous plaque with a crust on the neck. Skin biopsy demonstrated a fungus, the Aspergillus, in the deep dermis as the etiologic agent. No evidence of involvement in other organs was found. The patient exhibited no other apparent systemic diseases nor immunologic defects. An elliptical excision and a primary closure was performed, and the adjuvant antifungal treatment, oral itraconazole, was applied to prevent the recurrence by the satellite lesions.

• Interaction and multiscale mechanics
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• v.2 no.1
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• pp.1-14
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• 2009

This paper proposes an interaction field concept based on the field theory of plasticity. Relative deformation between two arbitrary scales, e.g., macro and micro fields, is defined which can be implemented in the crystal plasticity-based constitutive framework. Differential geometrical quantities responsible for describing dislocations and defects in the interaction field are obtained, based on which dislocation density and incompatibility tensors are further derived. It is shown that the explicit interaction exists in the curvature or incompatibility tensor field, whereas no interaction in the torsion or dislocation density tensor field. General expressions of the interaction fields over multiple scales with more than three scale levels are derived and implemented into the present constitutive equation.

• Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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• 2003.11a
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• pp.537-543
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• 2003

Condition monitoring and fault diagnosis of machines are gaining importance in the industry because of the need to increase reliability and to decrease possible loss of production due to machine breakdown. By comparing the vibration signals of a machine running in normal and faulty conditions, detection of faults like mass unbalance, shaft misalignment and bearing defects is possible. This paper presents a novel approach for applying the fault diagnosis of rotating machinery. To detect multiple faults in rotating machinery, a feature selection method and support vector machine (SVM) based multi-class classifier are constructed and used in the faults diagnosis. The results in experiments prove that fault types can be diagnosed by the above method.

• Maxillofacial Plastic and Reconstructive Surgery
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• v.27 no.6
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• pp.559-564
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• 2005

Beckwith-Wiedemann syndrome is an autosomal dominant growth excess disorder, which occurs with a reported incidence of 1 in 13,700 to 1 in 17,000 live births. It constitutes a discrete clinicopathologic entity characterized by macroglossia, abdominal wall defects (omphalocele), visceromegaly, gigantism, hemihypertrophy, hypoglycemia, and the increased risk of solid tumor development from multiple cell lines. A macroglossia is a key component of the syndrome, and can lead to cosmetic, functional and psychologic disorder. This report shows a 5-year-old patient with Beckwith-Wiedemann syndrome, who had macroglossia and received reduction glossectomy.

• Korean Journal of Cleft Lip And Palate
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• v.11 no.2
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• pp.65-70
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• 2008

Cleft lip and/or palate are common birth defects in humans and the causes including multiple genetic and environmental factors are complex. Combinations of genetic, biochemical, and embryological approaches in the laboratory mice are used to investigate the molecular mechanisms underlying normal craniofacial development and the congenital craniofacial malformations including cleft lip and/or palate. Both forward and reverse genetic approaches are used. The forward genetic approach involves identification of causative genes and molecular pathways disrupted by uncharacterized mutations that cause craniofacial malformations including cleft lip and/or cleft palate. The reverse genetic approach involves generation and analyses of mice carrying null or conditional mutations using the Cre-loxP mediated gene targeting techniques.

• Electrical & Electronic Materials
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• v.10 no.7
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• pp.651-658
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• 1997

In this paper, effect of interpenetrating polymer network(IPN) introduction on the dielectric properties, heat proof properties, internal structure and defects of the Epoxy/SiO$_2$composite materials, were investigated. we reported a relation between network structures and electrical properties, especially dielectric characteristics with variation of network structures for epoxy composite materials. According to experimental results, the specimens which have single network structures have lower dielectric constant than interpenetrating polymer network(IPN) specimens, but have relatively larger dependency to variation of temperature and frequency. It was confirmed that change of structures is attained by introducing of IPN to insulating materials. Therefore it is counted that introduction of multiple structure including IPN is necessary to improve heat proof and electrical properties.

• Journal of Genetic Medicine
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• v.18 no.1
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• pp.24-30
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• 2021

Epigenetics deals with modifications in gene expression, without altering the underlying DNA sequence. Genomic imprinting is a complex epigenetic phenomenon that refers to parent-of-origin-specific gene expression. Beckwith-Wiedemann syndrome (BWS) and Silver-Russell syndrome (SRS) are congenital imprinting disorders with mirror opposite alterations at the genomic loci in 11p15.5 and opposite phenotypes. BWS and SRS are important imprinting disorders with the increase of knowledge of genetic and epigenetic mechanisms. Altered expression of the imprinted genes in 11p15.5, especially IGF2 and CDKN1C, affects fetal and postnatal growth. A wide range of imprinting defects at multiple loci, instead of a restricted locus, has been shown in some patients with either BWS or SRS. The development of new high-throughput assays will make it possible to allow accurate diagnosis, personalized therapy, and informative genetic counseling.