• Title/Summary/Keyword: Soft Surface

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A Study on the mix design for the Soilcrete by Using FGC Soil Stabilizer (FGC계 고화재를 이용한 Soilcrete 배합설계에 관한 연구)

  • 천병식;고갑수;김진춘;하상욱
    • Proceedings of the Korean Geotechical Society Conference
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    • 1999.10a
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    • pp.293-300
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    • 1999
  • Soilcrete has been the traditional material for the paving and soft ground improvement techniques. But because the durability is not excellent and the quality is not homogeneous, it has not been used for the various purposes up to date. And because the quality of soilcrete is apt to be changed by the content of water and soil stabilizer, and the kind of soil and soil stabilizer, it is not free of cares. But with the increase of naturally oriented needs for the light traffic road such as pedestrian roads of the garden, golf courses and sidewalks, the cases of soilcrete paving has been increased recently. This study aims at making the reference table of the mix design in accordance with the required design specifications for the soilcrete admixtures by the FGC soil stabilizer by using the statistical experiment method. The treated soil is the clay which are widely spreaded in Korea. As the results of this study we can derive the effective reference mix design table for the clay soil treated by the FGC soil stabilizer in accordance with the compressive strength of 50∼200kg/$\textrm{cm}^2$ soilcrete with respect to the contents of water, soil stabilizer and fine sand.

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A Multi-wavelength Observational Study of Eruption Processes of Two Prominences in the Solar Active Region NOAA 11261

  • Park, Sung-Hong;Cho, Kyung-Suk
    • The Bulletin of The Korean Astronomical Society
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    • v.38 no.2
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    • pp.90.1-90.1
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    • 2013
  • To better understand the physics underlying the eruption of prominences in solar active regions, we studied eruption processes of two active prominences located in the active region NOAA 11261 using multi-wavelength observational data with high temporal and spatial resolution. Specifically, we examined (1) the temporal variation of morphology and plasma properties of the two active prominences, (2) magnetic fields and their evolution on the photospheric surface underneath the prominences, and (3) the time profiles and locations of radio, EUV, and soft/hard X-ray emissions produced by the M9.3 flare related to the prominence eruption. As a result, we found that: (1) a prominence F1 began to erupt and expand as the abrupt and intense EUV brightening occurred in the localized region underneath the western part of F1 at 03:45 UT prior to the peak time of the M9.3 flare, (2) F1 split into two parts: i.e., the western part asymmetrically erupted by producing the M9.3 flare with microwave source motions along the magnetic polarity inversion line between the two flare ribbons, while the eastern part coalesced into a pre-existing prominence F2, (3) F2 became unstable due to the coalescence with the eastern part of F1, and then it partially erupted with clockwise untwisting motions.

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Fine Needle Aspiration Cytology of Primary Malignant Lymphoma of the Thyroid Gland - A Case Report - (원발성 갑상선 림프종의 세침흡인 세포학적 소견 - 1예 보고 -)

  • Kwon, Mi-Seon;Lee, Seung-Sook;Koh, Jae-Soo;Chung, Jin-Haeng;Lee, Kyo-Young
    • The Korean Journal of Cytopathology
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    • v.12 no.1
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    • pp.67-71
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    • 2001
  • Primary malignant lymphoma of the thyroid gland is uncommon malignancies. Its fine needle aspiration cytology (FNAC) findings are rarely described in the literature. This article highlights the FNAC diagnosis of primary malignant lymphoma of the thyroid gland. A 70-year-old female presented with a rapidly enlarging thyroid mass of five months' duration. FNAC smears showed low cellularity consisting of predominantly atypical enlarged lymphoid cells admixed with a few small lymphocytes, plasma cells, and oncocytic cells. Some disrupted lymphoid cells were also present. The tumor cells infiltrated into the thyroid follicular epithelium forming lymphoepithelial lesion, The cytologic appearance showed a diffuse mixture of cell types with only a few small, mature lymphocytes and many enlaraed lymphoid cells. The enlarged lymphoid cells were atypical and pleomorphic with nuclear clefting and irregularities. Grossly, the left lobe of the thyroid was nearly replaced by a diffuse firm to soft solid mass with smooth tan fish-flesh homogeneous cut surface. Histological diagnosis was diffuse large B-cell lymphoma with areas of marginal zone B-cell lymphoma of MALT type.

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Effect of Dyeing by Immature Persimmon Juice on the Hand of Fabrics (감즙염색이 직물의 태에 미치는 영향)

  • 고은숙;이혜선
    • Journal of the Korean Society of Clothing and Textiles
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    • v.27 no.8
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    • pp.883-891
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    • 2003
  • In this study, a change of hand of fabrics dyed with persimmon juice was measured using Kawabata Evaluation System. Using various cotton fabrics, linen fabric and silk fabric used frequently for persimmon juice dyeing, we examined the changes of physical properties and hand according to persimmon juice dyeing and washing. The dynamic characteristics of hand were measured tensile, shear, bending, compression, surface properties, thickness and weight. Linearity of load-extention and tensile resilience were increased in all kinds of fabrics after dyeing. Tensile energy decreased in cotton fabric 2(gauze), cotton fabric 3(muslin) and linen fabric. Shear stiffness and hysteresis of shear increased in most of fabrics. Bending rigidity of the bending property and hysteresis of bending, linearity of compression of the compression property, compression energy and compression resilience increased in all kinds of fabrics after dyeing. Thickness and weight increased much in all kinds of fabrics after dyeing. In the primary hand value, stiffness and anti-drape stiffness increased in all kind of fabrics after dyeing. The fullness and softness, crispness, scrooping feeling and flexibility with soft feeling decreased. As the stiffness after persimmons dyeing increased, it was suitable for clothes material of summer.

A technical study on mold construction development for junction improvement and productivity improvement of Double-Injection molding (이중사출의 접합성 개선 및 생산성향상을 위한 금형구조 개발기술연구)

  • Kim, O.R.;Lee, S.Y.;Kim, Y.K.;Woo, C.K.;Han, I.Y.
    • Design & Manufacturing
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    • v.2 no.6
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    • pp.49-55
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    • 2008
  • Double-injection molding can inject two different materials or two colors in the same mold and process. If this injection process use, product has ability because the base part maintain strength and specified part can inject soft-material. It makes the cost down by single operation automatically for saving wages. In this paper, we designed double-injection mold for automobile remote control to inject secondary using this part as insert after inject external appearance of product. CAE analysis was progressed gate location and runner size as variable and analysis result is reflected in mold design process. As a result, it could solved badness that is generated at the conventional mold. Additionally, cost is downed by reducing loss of runner as well as could omit painting process because surface of finished product is improved through new mold.

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Iliac Bone Graft for Recurrent Posterior Shoulder Instability with Glenoid Bone Defect

  • Ko, Sang-Hun;Cho, Yun-Jae
    • Clinics in Shoulder and Elbow
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    • v.17 no.4
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    • pp.190-193
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    • 2014
  • Recurrent posterior shoulder instability is a debilitating condition that is relatively uncommon, but its diagnosis in young adults is increasing in frequency. Several predisposing factors for this condition have been identified, such as the presence of an abnormal joint surface orientation, an osteochondral fracture of the humeral head or glenoid cavity, and a postero-inferior capsuloligamentary deficit, but their relative importance remains poorly understood. Whilst, conservative treatment is effective in cases of hyperlaxity or in the absence of bone abnormality, failure of conservative treatment means that open or arthroscopic surgery is required. In general, soft-tissue reconstructions are carried out in cases of capsulolabral lesions in which bone anatomy is normal, whereas bone grafts have been required in cases where posterior bony Bankart lesions, glenoid defects, or posterior glenoid dysplasia are present. However, a consensus on the exact management of posterior shoulder instability is yet to be reached, and published studies are few with weak evidence. In our study, we report the reconstruction of the glenoid using iliac bone graft in a patient suffering recurrent posterior shoulder instability with severe glenoid bone defect.

A Case of Giant Epidermal Inclusion Cyst (거대 표피 낭종의 치험례)

  • Kim, Keun Sik;Cho, Pil Dong;Shin, Keuk Shun;Oh, Hwa Eun
    • Archives of Plastic Surgery
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    • v.34 no.6
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    • pp.803-806
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    • 2007
  • Purpose: The epidermal cyst is a very common skin lesion which usually occurs in the hairy regions. They are generally small but rarely reach more than 5 cm in diameter. We present a patient with a giant epidermal cyst on buttock area. Methods: A 50-year-old man with a slowly enlarging, huge mass in his left buttock was examined. There was no history of trauma in this area. Physical examination revealed a soft, nontender, $15{\times}15cm$-sized mass in his left buttock. T1-weighted magnetic resonance images demonstrated a well-circumscribed, multilocular cystic lesion with homogeneous, slightly high signal intensity. On T2-weighted images the lesion had wide areas of high signal intensity. The mass was totally excised. Results: A histopathological finding revealed that the cystic wall was lined with whole layers of stratified squamous epithelium. Keratin layers from the surface of the epithelium were seen to be sloughing into the cystic lumen. Multinucleted giant cells were found outside the cystic wall. Conclusion: Herein we report a rare case of giant epidermal cyst occurring on the buttock.

Medical Imaging of Thymoma in a Dog (개에서 흉선종의 영상의학적 진단례)

  • Choi, Ho-Jung;Lee, Young-Won;Kim, Jae-Hoon;Shin, Chang-Ho;Park, Ki-Tae;Yeon, Seong-Chan;Lee, Hyo-Jong;Lee, Hee-Chun
    • Journal of Veterinary Clinics
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    • v.28 no.4
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    • pp.460-465
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    • 2011
  • A 15-year-old, castrated male shih-tzu dog was referred to Veterinary Medical Teaching Hospital of Gyeongsang National University due to dyspnea, anorexia, depression of 1 week's duration. On thoracic radiography, triangular shaped soft tissue opacity mass presented in the left cranial lung lobe region. On computed tomography, there was a $3.8{\times}2.5$ cm mass in the left thoracic cavity, which was lobulated and adhered to ventral pleural surface. Histopathologically, the neoplastic cell population consisted of a lot of lymphocytes and a few of Hassal's corpuscles. The immunohistochemistry, lymphocytes were diffusely positive for CD3 and focal positive $CD79{\alpha}$. Based on gross, histologic, and immunohistochemical findings, the neoplasm was diagnosed a lymphocyte predominant thymoma.

Surgical Treatment of Pulmonary Aspergillosis -One Case Report- (폐면균증(肺麵菌症)의 외과적(外科的) 치료(治療) -일례(一例) 보고(報告)-)

  • Kim, Hark Jei;Lee, Nam Soo;Song, Yo Jun;Kim, Hyong Mook
    • Journal of Chest Surgery
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    • v.9 no.2
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    • pp.139-142
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    • 1976
  • A 33 year old male patient was admitted with 20 years history of recurrent hemoptysis. On clinical examination, mild left chest discomfortness and foul odored sputum with occasional rusty hemoptysis were principal complaints noted. Chest X-ray film revealed moderately advanced active tuberculosis lesion on both upper lung fields, and hen-egg sized mass surrounded with linear crescent of air shadow in a cavity on his left upper lung field. On left thoracotomy, dense pleural adhesions on left apicoposterior segmental surface with multiple lymphnode enlargements were noted, and the soft encapsulated mass of $5{\times}5{\times}8cm$ was localized in the apicoposterior segment of the left upper lobe. Apicoposterior segment with anterior segment of the left upper lobe was resected. Cavity was opened to find a rusty grayish colored, fragile mass, which was confirmed as "fungus ball" of aspergillosis by histological section slide with Gomori staining. The authors report one case of pulmonary aspergilloma superinfected with previous long standing pulmonary tbc.

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Numerical Simulation of Soil-Structure Interaction in Centrifuge Shaking Table System (지반-구조물 상호작용 원심모형시험에 대한 수치해석)

  • Kim, Dong-Kwan;Park, Hong-Gun;Kim, Dong-Soo;Lee, Sei-Hyun
    • Proceedings of the Korean Geotechical Society Conference
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    • 2010.09a
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    • pp.201-204
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    • 2010
  • Earthquake load to design a structure has been calculated from a fixed base SDOF model using amplified surface accelerations along soft soil layers. But the method dose not consider a soil-structure interaction. Centrifugal experiments that were consisted of soil, a shallow foundation and a structure were performed to find the effects of soil-structure interaction. The experiments showed that mass and stiffness of the foundation affected a response of the structure and nonlinear behavior of soil near the foundation. And a rocking displacement caused by overturning moment affected the response and increases a damping effect. In this study, the centrifugal experiment was simulated as a two dimensional finite element model. The finite element model was used for nonlinear time domain analysis of the OpenSees program. The numerical model accurately evaluated the behaviors of soil and the foundation, but the rocking effect and the behavior of structure were not described.

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