• Proceedings of the Korean Fiber Society Conference
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• 1998.10a
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• pp.340-343
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• 1998

자연계의 모든 것은 어떠한 형태로든 변동을 가진다. 이러한 변동을 해석하고 이 변동의 경향을 분석하면 이후의 변동을 예측할 수 있게된다. 그러므로 변동의 분석은 변동의 예측과 나아가 변동의 제어를 가능하게 하는 바탕이 된다. 방적사는 그것의 원료가 되는 섬유의 특성과 제조 공정중의 많은 변동요인 즉, 기계의 결함, 공정 자체의 요소들에 의하여 불균제를 일으키는 변동을 가지게 된다. (중략)

• Venture DIGEST
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• s.135
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• pp.25-27
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• 2009

2000년부터 김치유산균의 효능을 담은 건강식품 개발에 매진해온 (주)바이오리듬(대표 정용현, www.biorhythm.kr)이 지난해 10월 벤처법인을 설립하여 새로운 출발을 알렸다. 요구르트유산균이 잠식하고 있는 유산균제조시장에 '순식물성 유산균'이라는 차별화 전략으로 도전장을 내만 (주)바이오리듬. 김치유산균의 상품화를 통해 우리의 전통음식 '김치'의 뛰어난 가치를 전 세계에 알리는 첨병역할을 하고 있다.

• Proceedings of the Korean Society of Dyers and Finishers Conference
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• 2011.03a
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• pp.96-96
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• 2011

본 연구에서는 스포츠 캐주얼 웨어(스노우보드복, 골프복, 등산복 등)로 사용되는 신축성 소재의 개발로 Stretch성을 부여하기 위하여 Nylon 66 POY 소재의 가연가공 기술을 통하여 Mechanical Stretch 성능이 발현되는 소재를 개발하고자 한다. 섬유소재에 일반적으로 신축성을 부여하기 위해서는 Spandex(Polyurethane, PU)를 방적공정에서 복합 제조하는 Core Yarn과 장섬유에 Spandex를 피복하는 Covering Yarn(직물용) 형태가 있는데, Spandex로 인한 신축성은 200~800% 발현되나 PU를 사용함에 따라서 공정추가에 대한 원가상승, 균제도 불량, 몰림현상 및 PU 수축에 의한 중량감이 있으며, 또한 PU에 의한 견뢰도불량, 피복사의 벗겨짐성 등 외관상 트러블 발생빈도가 높다. 이에 따라 Spandex를 사용하지 않고 단일소재로서 사가공기술에 의해 Stretch성이 부여되는 소재를 개발하고 이의 기술을 상용화 하고자 한다. Nylon 66 POY 소재를 Disc 가연기, Pin 가연기 등의 설비를 이용하여 70d급 원사의 가연가공 공정을 진행하였다. 그리고 개발된 원사의 섬도(d), 강도(g/d), 신도(%), 크림프율(%)의 물성 시험을 통하여 Nylon66의 공정상 변화인자에 따른 기본 물성 및 Stretch 발현성을 분석하여 최적의 설비 및 공정조건을 확립하였다.

• Korean Journal of Air-Conditioning and Refrigeration Engineering
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• v.26 no.9
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• pp.424-433
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• 2014

The purpose of this study is to evaluate the effectiveness in the lighting performance of mixed type light-shelf, by comparing and analyzing the internal light-shelf, external light-shelf, and mixed-type light-shelf. The performance of light-shelf was evaluated according to the angle of light-shelf at summer solstice, winter solstice, vernal equinox, and autumn equinox. The comparative analysis between the internal light-shelf, external light-shelf, and mixed-type light-shelf was carried out using the performance evaluation and analysis method. The result of performance evaluation is shown as follows. The mixed type light-shelf showed the highest lighting performance all at summer solstice, winter solstice, vernal equinox, and autumn equinox, followed by the external light-shelf and the internal light-shelf in the same order. The mixed type light-shelf was the most favorable for bringing daylight to indoors by adjusting the angle of light-shelf, and it also showed the highest lighting performance in terms of uniformity ratio of illumination which indicates the quality of light.

• KIEAE Journal
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• v.13 no.4
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• pp.21-26
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• 2013

Shading devices have become an integral part of the daylighting strategy for sustainable classroom design. The louver type is newly designed shading devices which provide more view to the outside and protect from outside condition such as snow or rain. The purpose of this study is to compare the daylight performance of traditional and louver type overhang and lightshelf. The room dimension was $7.5m{\times}9.0m{\times}3.0m$. The length of shading devices was calculated by Palmero's study. The length of the traditional and louver type overhang was 455mm, 1210mm and lightshelf was 350/810mm, 625/555mm respectively. For the study, the Radiance 2.0 was used to evaluate the illuminance and uniformity ratios. And scale model were used to evaluate sunpatch area on the floor in model was calculated. The results showed that the louver type lightshelf was suitable for spring and summer, and louver type overhang was suitable for winter.

• Clinical and Experimental Pediatrics
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• v.53 no.2
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• pp.239-243
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• 2010

Candidiasis is one of the most common causes of late-onset infection among very-low-birth-weight infants (VLBW) in most neonatal intensive care units and is associated with significant morbidity and mortality. Standard therapy consists of the administration of amphotericin B, amphotericin B complex, and fluconazole. In many cases, candidiasis is not easily eradicated, despite the administration of these drugs. We report our experience of the addition of high-dose caspofungin to the conventional antifungal drugs in a VLBW infant with refractory candidemia.

• KIEAE Journal
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• v.7 no.1
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• pp.23-31
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• 2007

This study aims to evaluate the illuminance performance of sloped light guide with automated venetian blind systems. For the purpose, a mock-up model was constructed as a prototype of Korean office building with $12.0m{\times}7.3m{\times}3.7m$ ($w{\times}d{\times}h$) and south facing side-window mounted between the clerestory window($2.0m^2$) and the view window($5.6m^2$). The light guide of 1.28m deepth and $29^{\circ}$ tilted angle, is covered with 0.6mm galvanized steel sheet and 97% reflective film. To protect the room from low solar angle, a blind systems, 0.15m deepth and $30^{\circ}$ automated slat angle was installed. To assess illuminance performance, the totally 37 measuring points for illuminance were monitored. For the detailed analysis, photometric sensors were installed at work-plane (8 points), wall (7 points), ceiling (3points), and exterior horizontal illuminance (1 point) respectively. The performance was measured under clear sky and is monitored by Agilent data logger, photometric sensor Li-cor and the Radiant Imaging ProMetric 1400. Comparisons of light factor and uniformity are discussed.

• Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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• v.20 no.7
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• pp.1-5
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• 2006

Fixed lighting of public ways for both drivers and pedestrians can create a nighttime environment in which people can see comfortably and can quickly and accurately identify objects on the roadway being travelled. Roadway lighting can improve traffic safety, achieve efficient traffic movement and promote the general use of the facility during darkness. The design of a roadway lighting system involves consideration of visibility, economics, esthetics, safety and environmental conditions. This paper shows estimation of horizontal illuminance and uniformity ratio by actual measurement of roadway lighting at main streets in Jejusi and evaluation of Jejusi roadway lighting conditions for modeling by computer simulation.

• Journal of the Korean Orthopaedic Association
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• v.54 no.1
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• pp.52-58
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• 2019

Purpose: Fungal periprosthetic joint infection (PJI) is a rare but devastating complication following total knee arthroplasty (TKA). On the other hand, a standardized procedure regarding an accurate treatment of this serious complication of knee arthroplasty is lacking. The clinical progress of staged reimplantation in patients who had fungus-related PJI after TKA was reviewed retrospectively. Materials and Methods: Ten patients who had a fungal related PJI after TKA between 2006 and 2017 using staged reimplantation surgery were reviewed. These patients were compared with 119 patients who had a PJI in the same period. The failure rate of infection control, intravenous antimicrobial using the period, and the clinical results were evaluated by comparing the range of motion and Korean knee score (KKS) between pre-staged reimplantation and the last follow-up. Results: In the fungal infection group, 7 out of 10 cases (70.0%) had failed in infection control using staged reimplantation and in the non-fungal group, 7 out of 119 cases (5.9%) had failed (p=0.04). In the non-fungal group, the mean duration of antibiotics was 6.2 weeks. In the fungus group, the mean duration of antibiotics was 15.3 weeks, which was 9.1 weeks longer (p<0.001). The range of motion of the knee was increased in the two groups (p=0.265). At the last follow-up, the KKS was 71.01 points in the non-fungal group and 61.3 points in the fungal group (p=0.012). Erythrocyte sedimentation rate and C-reactive protein (CRP) decreased in the two groups, but the CRP was significantly different in the two groups (p=0.007). Conclusion: The treatment of fungus-related PJIs using staged reimplantation showed uneven clinical progress and unsatisfactory clinical improvements compared to non-fungal PJI. Therefore, it is necessary to consider the use of an antifungal mixed cement spacer at resection arthroplasty and oral antifungal agent after reimplantation.

• The Korean Journal of Pesticide Science
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• v.20 no.1
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• pp.41-46
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• 2016

Bacterial fruit blotch (BFB) caused by Acidovorax avenae subsp. citrulli is defective disease to watermelon cultivated areas. To control of BFB, we investigated control efficiency to use commercial antibacterial pesticides. Growth inhibition zone on medium were formed as oxolinic acid WP and oxytetracycline WP. Control efficacy of four anti-bacterial pesticides on seed and seedling stage were performed. As a results, oxytetracyclin WP is shown over 90% control efficiency on seed and acibenzolar-S-methyl + mancozeb WP shown over 90% control efficiency on seedling stage Hot-water treatment method could be possible to reduced infection rate on seed. The conditions of hot-water treatments are $50{\sim}55^{\circ}C$ on 20~30 minutes. These results suggested that the methods were helpful watermelon seedling nursery to control of the bacterial fruit blotch by A. avenae subsp. citrulli.