• Title/Summary/Keyword: wart

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The formation of Si V-groove for optical fiber alignment in optoelectronic devices (광전소자 패키징에서 광섬유 정렬을 위한 Si V-groove 형성)

  • 유영석;김영호
    • Journal of the Microelectronics and Packaging Society
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    • v.6 no.3
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    • pp.65-71
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    • 1999
  • The effects of mask materials and etching solutions on the dimensional accuracy of V-groove were studied for the alignment between optoelectronic devices and optical fibers in optical packaging. PECVD nitride, LPCVD nitride, or thermal oxide($SiO_2$) was used as a mask material. The anisotropic etching solution was KOH(40wt%) or the mixture of KOH and IPA. LPCVB nitride has the best etching selectivity and thermal oxide was etched most rapidly in KOH(40wt%) at $85^{\circ}C$ among the mask materials studied here. The V-groove size enlarged than the designed value. This phenomenon was due to the undercutting benearth the mask layer from the etching toward Si (111) plane. The etch rate of (111) plane wart 0.034 - 0.037 $\mu\textrm{m}$/min in KOH(40wt%). This rate was almost same regardless of mask materials. When IPA added to KOH(40wt%), the etch rate of (100) plane and (111) plane decreased, but etching ratio of (100) to (111) plane increased. Consequently, the undercutting phenomenon due to etching toward (111) plane decreased and the size of V-groove could be controlled more accurately.

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Growth responses of Chondrus ocellatus Holmes (Gigartinales, Rhodophyta) to two endophytes, Mikrosyphar zosterae Kuckuck (Ectocarpales, Ochrophyta) and Ulvella ramosa (N. L. Gardner) R. Nielsen (Ulvales, Chlorophyta) in culture

  • Ogandaga, Cyr Abel Maranguy;Choi, Han Gil;Kim, Jang Kyun;Nam, Ki Wan
    • ALGAE
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    • v.31 no.4
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    • pp.363-371
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    • 2016
  • To examine the effects of two endophytic algae, Mikrosyphar zosterae (brown alga) and Ulvella ramosa (green alga), on the host Chondrus ocellatus (red alga), culture experiments were conducted. Four treatments were made: endophyte-free (Chondrus only), endophyte-M (Chondrus + Mikrosyphar), endophyte-U (Chondrus + Ulvella), and endophytes-M U (Chondrus + Mikrosyphar + Ulvella). After 3 weeks, the relative growth rates (RGRs) of frond lengths and the number of newly formed bladelets were examined. M. zosterae formed wart-like dots on C. ocellatus fronds, whereas U. ramosa made dark spots. The RGRs of frond lengths of C. ocellatus were significantly greater in the endophyte-free and endophyte-M treatment groups than in the endophyte-U and endophytes-M U treatment groups, indicating that the growth of host C. ocellatus was inhibited more by the green endophyte U. ramosa than the brown endophyte M. zosterae. The number of newly produced bladelets was greater in the endophyte-U and endophytes-M U groups than in the endophyte-free and endophyte-M treatment groups. These results indicate that the two endophytes inhibit growth of the host C. ocellatus. The negative effects of U. ramosa on C. ocellatus growth were more severe than those caused by M. zosterae. Furthermore, U. ramosa destroyed the apical meristems of C. ocellatus, whereas M. zosterae did not. On the other hand, C. ocellatus showed compensatory growth in the form of lateral branch production as U. ramosa attacked its apical meristems.

Three Cases of Verruca Vulgaris Treated Mainly with Gwakhyangjeonggisangamibang and Moxibustion (곽향정기산가미방(藿香正氣散加味方)과 뜸 치료를 위주로 한 심상성 사마귀 치험 3례)

  • Moon, Young-Kyun;Jeong, Woo-Yeol;Shin, Jun-Hyuk;Kim, Yoon-Bum;Nam, Hae-Jung;Kim, Kyu-seok
    • The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology
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    • v.28 no.2
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    • pp.93-101
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    • 2015
  • Objectives : The purpose of this study is to report the effectiveness of Korean Medicine treatment mainly withGwakhyanjeonggisangamibangand moxibustion on Verruca Vulgaris. Methods : All the patients were treated with herbal formula, including Gwakhyanjeonggisangamibangand moxibustion on wart lesions. Additional treatments such as acupuncture and cupping therapy applied selectively to patients. Photographs of lesions were used to evaluate the changes in symptoms. Results : Judging by photographs, most of patients' lesions were disappeared after the treatments in all cases. Depending on the severity and duration of the symptoms, the treatment period were different in each case: about 3 weeks, 19 weeks, and 30 weeks, respectively. Conclusions : This study shows thatGwakhyanjeonggisangamibangand moxibustion combined with other Korean Medicine treatments was effective to treat Verruca Vulgaris.

Distribution of Hemicelluloses in Warts and the Warty Layer in Normal and Compression Wood Tracheids of Cryptomeria Japonica

  • Kim, Jong-Sik;Awano, Tatsuya;Yoshinaga, Arata;Takabe, Keiji
    • Journal of the Korean Wood Science and Technology
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    • v.39 no.5
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    • pp.420-428
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    • 2011
  • The distribution of arabino-4-O-methylglucuronoxylans (AGXs) and O-acetyl-galactoglucomannans (GGMs) in warts and the warty layer of tracheids in normal wood (NW) and compression wood (CW) of Cryptomeria japonica was investigated. Under field emission scanning electron microscope (FE-SEM) observation, warts and the warty layer of delignified NW and CW tracheids were degraded by xylanase treatment, indicating that warts and the warty layer contain high amounts of AGXs. However, the effect of xylanase was not observed in NW and CW tracheids before delignification, suggesting that AGXs in warts and the warty layer may be encrusted with lignin. After ${\beta}$-mannanase treatment, no noticeable changes were observed in warts and the warty layer of NW tracheids, indicating that warts and the warty layer contain either no or very few GGMs. Similar results to FE-SEM observations were also observed with immunogold labeling. AGX labeling was observed in warts and the warty layer of NW and CW tracheids, while GGM labeling was not detected. NW tracheids showed a much stronger density of AGX labeling than did CW tracheids in warts and the warty layer, indicating differences in the chemical compositions of warts and the warty layer between NW and CW tracheids.

Effects of Coicis Semen on the Immune Responses in the Mouse (의이인(薏苡仁)의 투여(投與)가 마우스의 세포성(細胞性) 및 체액성(體液性) 면역기능(免疫機能)에 미치는 영향(影響))

  • Woo, Young-Eun;Kim, Hyeong-Kyun;Song, Bong-Keun;Lee, Eon-Jeong
    • Korean Journal of Oriental Medicine
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    • v.2 no.1
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    • pp.269-288
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    • 1996
  • Coicis Semen is one of the oriental medicine that has been used for the treatment of the diseases such as pulmonary abscess, periappendicular abscess and wart since ancient times. However, the mechanism of the action of the drug is not well studied. This study was done to investigate the effects of Coicis Semen on the host defence mechanism. Effects of Coicis Semen on the immune responses were analysed by measuring the contact hypersensitivity, hemagglutinin, hemolysin and rosette formation, cytotoxicity, and reactive oxygen intermidiates production. As the results, water extract of Coicis Semen administration enhanced the antibodies (hemagglutinin and hemolysin) formation and the appearance of rosette forming cells of the spleen. Also Coicis Semen increased the allogeneic immune response in the mouse, showed cytotoxic activity against human leukemia cell line(K562) and decreased the contact hypersensitivity against dinitroflurobenzene. Also administration of Coicis Senlen slightly increased NK cell activity and enhanced the production of such reactive oxygen intermediates as superoxide and hydrogen peroxide from the macrophages in vivo and in vitro. The above results demonstrate that Coicis Semen has enhancing effects on cellular and humoral immune responses against disease.

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Studies on the Diagnosis of Subclinical Mastitis in Cows by the Measurement of the Electrical Conductivity: 1. Comparison of Various Methods of Handling Conductivity Data with the Use of California Mastitis Test and Direct Somatic Cell Count (전기전도도(電氣傳導度) 측정(測定)에 의한 유우(乳牛) 준임상형(準臨床型) 유방염(乳房炎)의 진단(診斷)에 관한 연구(硏究) 1. 전기전도도법(電氣傳導度法)과 간접검진법(間接檢診法)(CMT 및 총체세포수(總體細胞數))과의 비교(比較))

  • Kang, Byong-kyu
    • Korean Journal of Veterinary Research
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    • v.24 no.1
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    • pp.91-98
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    • 1984
  • A total of 466 foremilk from dairy farms in Chonnam district was examined for the subclinical mastitis over a period of one year, using a method of the electrical conductivities(EC); absolute conductivity(AC) and differential conductivity(DC) and quarter difference value(QD), in relation to the California mastitis test(CMT) and the direct somatic cell count(DSCC). The compatibility and efficiency rating between the EC values and the other screening tests was conducted. Obtained results are summarized as follows. 1. A linear relationship was found between the EC values and the CMT scores and direct somatic cell counts and it was found that electrical conductivity measurements were comparable with other screening tests for diagnosing animals with mastitis. 2. Compatibilities between the EC and CMT were 70.4% in AC, 74.6% in DC and 70.7% in QD, and that of the EC and DSCC were 53.0% in AC, 63.1% in DC and 53.2% in QD. On the other hand, relative efficiency ratings of Postle's equation between EC and CMT were 37.3% in AC, 26.5% in DC and 13.6% in QD, and that of the EC and DSCC were 33.1% in AC, 20.2% in DC and 11.9% in QD. 3. In the foremilk samples collected from damaged quarters determined by EC, the false positive rate wart higher than the false negative rate, and consequently tests of EC produced lower compatibility or efficiency rating scores. These tendencies suggested that any factors other than the mastitic condition influencing the EC values might be existed.

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A Case Report of Verruca Vulgaris patient treated with Mahaengeuigam-tang and Trichloroacetic acid(TCA) (마행의감탕(麻杏薏甘湯)과 Trichloroacetic acid (TCA) 병행치료를 이용한 심상성 사마귀의 한방 치험 1례)

  • Kang, Eun-Jeong;Kam, Eun-Young;Choi, Jung-Hwa;Kim, Jong-Han;Park, Soo-Yeon;Jung, Min-Yeong
    • The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology
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    • v.33 no.2
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    • pp.156-163
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    • 2020
  • Objectives : The purpose of this study is to report the effects of Mahaengeuigam-tang and Trichloroacetic acid(TCA) on hand warts. Exfoliation, such as TCA is a method developed from traditional medicine and used to treat hyperkeratosis skin in this patient. Methods : A patient with Verruca Vulgaris was treated with herbal medicine, including Mahaengeuigam-tang and application of TCA on wart lesions. Changes in lesions were evaluated by photographs. Results : After 3 months of treatment, The patient's lesions showed complete clearance. There are no adverse effects and no relapse of Verruca Vulgaris after 57 days of last treatment. Conclusions : According to the result, Mahaengeuigam-tang and External treatment such as TCA developed from traditional medicine can be effective for Verruca Vulgaris.

A Study on Building a Virtual Reality System with Environmental Design (환경디자인에 적용될 가상현실(VR) 시스템의 구축 방법에 대한 연구)

  • Kim, Chi-Young
    • Journal of Digital Contents Society
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    • v.5 no.1
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    • pp.12-21
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    • 2004
  • Modem society is information oriented with countless people needing quick reliable information. They also wart to be freed from the limitations of reality such astime and space and experience the world of imagination as if it was reality. Design is creating something out of nothing which has an innate sense of virtual within it. Since it is a process of bringing an imagingnation or an image to life, it can be described as the realization of virtuality. there are many ways in which computer adapted methods were utilized for design up to now. With the advance of computers, the process of desinging became efficient, visually complex and much easier. Undoubtedly, computer is a powerful hardware an design and furthermore, find a way to maximize the presence and to actively incorporate this in designing. The virtual reality system can be widely applied to environmental design to provude a high quality design and enhance the feeling of reality through imitation experiments. Computer simulation such as virtual reality systems is expected to be used widely in environmental design.

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Residual Stress Behavior of High Temperature Polyimide Thin Films depending on the Structural Isomers of Diamine (Diamine의 구조적 이성질체에 따른 내열성 폴리이미드 박막의 잔류응력거동)

  • 임창호;정현수;한학수
    • Journal of the Microelectronics and Packaging Society
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    • v.6 no.2
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    • pp.23-30
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    • 1999
  • The relationships between morphological structures and residual stress behaviors of polyimide thin films depending on isomeric diamines were investigated. For this study, Poly(phenylene biphenyltetracarboximide) (BPDA-PDA) and poly(oxydiphenylene biphenyltetracarboximide) (BPDA-ODA) films were prepared from their isomeric diamines: 1,3-phenylene diamine (1,3-PDA) 1,4-phenylene diamine (1.4-PDA), 3,4'-oxydiphenylene diamine (3,4'-ODA), and 4,4'-oxydiphenylene diamine (4,4'-ODA), respectively. For those films, residual stresses were detected in-situ during thermal imidization of the isomeric polyimide as a function of processing temperature over the range of 25~$400^{\circ}C$ using. Thin Film Stress Analyzer (TFSA). In comparison, residual stress of BPDA-1.4PDA having better in-plain orientation and chain order was the lowest value of 7MPa whereas those of BPDA-1,3-PDA, BPDA-3,4'-ODA, and BPDA-4,4'-ODA were in the range of 40-50MPa. Conclusively, the effect of morphological nature (chain rigidity, chain order, orientation) and chain mobility relating to the g1ass transition behavior on the residual stress of isomeric polyimide thin films wart analyzed.

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Analysis of Case Studies on Warts Treated with Oriental Medicine (사마귀의 한방 치료 증례연구 분석)

  • Lee, Kyou-Young
    • The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology
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    • v.32 no.4
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    • pp.101-115
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    • 2019
  • Objectives : The purpose of this study is to analyze the use of herbal medicine as a treatment method in the case studies on warts in Korea, to identify trends in herbal medicines and herbal prescriptions according to the characteristics of individual patients and to systematically analyze concurrent therapies. Methods : Domestic databases (OASIS, RISS, NDSL, KTKP, KISS, KISTI, KISTI) were used to search for case studies related to the herbal medicine treatment of warts. There was no restriction on the time of publication. A total of 9 papers were selected. Results : A total of 13 prescriptions were presented 23 times in 18 cases. Among them, bojungikgi-tang gamibang(補中益氣湯加減方) was the most frequently prescribed. Gwakhyangjeonggi-san gamibang(藿香正氣散加減方) and Damsoeun-tang gagam were the next most frequently prescribed. 69 herbs were used in a total of 13 prescriptions. Herbs were commonly classified as heat-clearing medicine(淸熱藥), exterior-releasing medicine(解表藥), and tonifying and replenishing medicine(補益藥) in descending order. The herbs used more than 6 times included Coicis Semen(薏苡仁), Glycyrrhizae Radix et Rhizoma(甘草) (10 times), Bupleuri Radix(柴胡), and Scutellariae Radix(黃芩) (6 times). Concurrent therapies were performed except for 1 study, and they were acupuncture, moxibustion, pharmacopuncture, external agents, and cupping therapy. Conclusions : This is the first study to analyze the use of herbal medicine as a treatment method for warts in case studies performed in Korea. We hope that this study would give helpful information about the treatment of warts in clinical practices.