• Textile Coloration and Finishing
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• v.17 no.3 s.82
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• pp.43-48
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• 2005

시료는 POY사 104/192로 Draw-Winder(독일, Zinser)를 이용하여 기존의 태세사 제조장치의 부분적인 개조를 통하여 길이방향으로 강제적인 태세사가 형성되도록 하는 제조기술을 이용하여 Thin-thick yam(T&T사) 6종류를 제조하였으며 제조 조건에 따른 구조변화와 물성에 대하여 연구 검토한 결과 다음과 같다. 결정화도의 변화는 Draw-winder의 R2 roller 온도가 상온인 경우보다 $100^{\circ}C$인 경우가 높게 나타났으며 태세사의 세(thin)부분의 복굴절률은 연신비가 높고 Draw winder의 roller(R2)의 온도가 높을수록 복굴절 값은 선형적으로 증가하였다. T&T사 제조시 연신 온도가 상온인 경우는 Thin부분만 연신이 진행되고 Thick 부분은 원사인 POY사의 성질이 그대로 유지하고 있음을 알 수 있고 R2 roller 온도가 상온에서 제조된 시료의 초기탄성률은 약1.5-2.0kgf/denier 정도로 높게 나타났으나 $100^{\circ}C$로 제조된 시료는 약 0.2-0.8kgf/denier 정도로 낮게 나타났다.

• Proceedings of the Korean Society of Dyers and Finishers Conference
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• 2004.04a
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• pp.217-221
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• 2004

• Korean Architects
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• v.1 no.1
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• pp.32-32
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• 1966

• The Monthly Technology and Standards
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• s.66
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• pp.14-16
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• 2007

각국의 기업들은 부산의 가능성을 예의주시하고 있다. 기업 활동을 할 수 있는 여건만 만들어주면 언제든지 들어올 태세를 갖추고 있다. 세계화 시대, 개방화 시대에 지역이 사는 길이고 대한민국이 잘 사는 길이다.

• Journal of the Korea Construction Safety Engineering Association
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• s.47
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• pp.44-51
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• 2008

책 향기에 빠져보는 하루 서울시내 북 카페가 우리를 부른다. 예전의 카페가 친구끼리 연인끼리 둘 이상이 같이 와서 웃고 떠들며 혹은 조용한 대화를 나누던 공간이었다면 요즘의 카페 특히, 북카페는 혼자가 더 자연스럽다. 편안한 소파는 물론 좌석 온돌마루에 푹신한 방석이 있는가 하면, 족욕을 즐길 수 있는 곳까지 다양한 서울의 카페. 북 카페는 요즘 서울카페의 대세를 이룰 태세다.

• Textile Coloration and Finishing
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• v.18 no.2 s.87
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• pp.39-45
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• 2006

The aim of this work is to develop sense-differentiated textiles using Thick-Thin polyester yarn(T-T yarn) with finer than 1 denier mono filament. The ITY(Interlace Textured Yarn) using T-T yarn with various over feed ratios of PET filament was manufactured with different shrinking percentage of core yarn and then the fabrics were woven on the same weaving 100m using ITY produced. The mechanical properties and the handles of the fabrics were examined with KES-FB system suggested by Kawabata. The shrinkage of ITY was increased with decreasing over feed ratio and increased with increasing heat treatment temperature of T-T yarn. The initial elasticity modulus of ITY was decreased with increasing over feed ratio and heat treatment temperature of T-T yarn. The tensile energy of fabrics was decreased with increasing of over feed ratio, but bending rigidity and shear rigidity of fabrics were increased with increasing of over feed ratio of PET filament. The results indicate that the fabric using T-T yarn with finer than I denier mono filament can be used for the purpose of sense-differentiated textile.

• Textile Coloration and Finishing
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• v.18 no.3 s.88
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• pp.42-48
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• 2006

The aim of this work is to develop Thick-Thin polyester yarn(T-T yarn) with finer than 1 denier mono filament. The manufacture of T-T yarns were carried out in a draw-winder using 85d/72f PET filament with various spinning speed of 2700, 2900, and 3100 m/min, respectively. The structure and physical properties of T-T yarns with spinning speed and over feed ratio were examined by draw-winder processing the sample in $100^{\circ}C$ water for 20 min and drying in 120, 140, 160, and $180^{\circ}C$ of dry air for 20 min. The crystallinity, the birefringence and the initial elasticity modulus of T-T yarns increased with increased spinning speed of filament and the heat treatment temperature but at the temperatures higher than $140^{\circ}C$ the increased rates show a tendency to decrease. Moreover, the initial modulus and the tenacity of T-T yarns increased with decreasing the over feed ratio of filament and the those of T-T yarns decreases with increasing the heat treatment temperature. The shrinkage of T-T yarns decreased with decreasing spinning speed and increased over feed ratio of filaments. Consequently, the results indicate that the best T-T yarn under 1 denier was optimized from PET filament with spinning speed of 2700 m/min and over feed ratio of 0.67

• Monthly Duck's Village
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• s.167
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• pp.86-89
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• 2017

작년 11월부터 급작스레 AI 발생이 늘어나면서 2016년 11월 28일부터 도압장에 대한 엄격한 차단방역이 시행되고 있다. 특히 전남도본부에서는 각 사무소별로 담당 도압장을 지정 전담하여 가축방역사를 배치하고, 도압장의 생체차량 진 출입 시 차량내 외부의 소독 실시 및 확인, 대인소독 여부 등을 점검하는 업무를 주 야간 24시간 체계로 실시하고 있다. 또한 질병 검사 후 지자체에서 발행하는 기금류이동승인서 및 차량 이동시 지참해야 하는 소독필증 등을 꼼꼼히 확언함으로서 고병원성 조류인플루엔자 조기종식 및 확산방지를 위하여 방역현장 최일선에서 최선의 노력을 기울이고 있다. 여기에 더하여 이곳 다솔에는 오랜 경험을 바탕으로 한 가금도축검사원 3명이 포진되어, 생산되는 오리 제품의 안전성을 철저하게 확인하며 철통태세를 갖추고 있다.

• Journal of Aerospace System Engineering
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• v.10 no.4
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• pp.67-74
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• 2016

The primary aim for using a Korean Condition Based Maintenance (CBM) system is to maintain military operational readiness using Interactive Collection Analysis Systems (ICAS) installed on naval vessels. Other aims are to preemptively provision maintenance and supply functions, to guarantee economical management of logistical assets, and to implement data driven equipment life cycle management. In order to accomplish these aims, it is necessary to establish standard system conditions. However, because manufacturers do not provide the technology necessary for maintenance management, it is required to retain component performance maps for each piece of equipment, and to accumulate data about frequently occurring fault patterns. This study confirms the validity of component performance maps using micro gas turbines and provides accumulated data on machine break downs. This would allow real time equipment performance checks and present performance trends. Then analysis would provide solutions for maintaining the best machine operating conditions with detailed maintenance manuals for operators. This study is a basis for further research to investigate additional ways to develop CBM using data obtained from naval vessels used in actual military operations.

• Convergence Security Journal
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• v.19 no.3
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• pp.109-115
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• 2019

The North's short-range projectiles and missiles are the Iskander-class missiles of the S-300 series, with a range of 270-420 kilometers and an altitude of 40-50 kilometers, making it very difficult to respond with South Korea's detection radar or striking weapons. The North's handling of the Seoul sea of fire also makes it very urgent for the South to deploy the weapons to power or introduce them as soon as possible, as it can identify its intention to strike the Seoul metropolitan area by equipping such short-range rockets and missiles with nuclear or chemical weapons. We will be prepared to prep are for reckless provocations by securing our own technology by continuously developing the Korean missile defense system and striking system, Kill Chain, which is designed to defend short-range missiles in the long-term, and securing our own technology.