• 제목/요약/키워드: EPS

검색결과 905건 처리시간 0.031초

방염스티로폴 약제 개발과 방염판넬 생산시 물성에 관한 연구 (Studies on the Synthesis of Diphenylphenylamidophosphate for Flame retandant agents of EPS and It's the effect of Flame Retardandy and properties in panel production)

  • 이광우
    • 한국산업융합학회 논문집
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    • 제4권2호
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    • pp.185-191
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    • 2001
  • Diphenylpropylamidophosphate(DPPAP) was synthesized as flame retardant for Expanded Polystyrene(EPS). Structure of DPPAP was investigated by the m, NMR, DSC. We make FR panels with EPS beads which treated with DPPAP and expanded by expand machines. FR panels were used in this study after formation by form machines and then cutting by cutting machines. The following conclusions were obtained: 1. The new synthetic agent was developed without the use of solvent such as pyridine or tertiary amine in the synthesis of DPPAP which served as flame retardant for EPS. 2. The flame retandancy effect of EPS treated with DPPAP was found excellent in LOI tests. 3. The properties of FR EPS panels treated with DPPAP did not difference.

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SUV - EPS 차량의 동시 시뮬레이션 기술 개발 및 시뮬레이션 통합 기술 개발 (Co-Simulation and Simulation Integration Technology Development for SUV Vehicle Equipped with Electric Power Steering (EPS))

  • B. C. Jang;Y. K. Eom
    • 한국정밀공학회:학술대회논문집
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    • 한국정밀공학회 2003년도 춘계학술대회 논문집
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    • pp.472-475
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    • 2003
  • Electric Power Steering (EPS) mechanism has become widely equipped in passenger vehicle due to the environmental consciousness and higher fuel efficiency. This paper describes the development of co-simulation technique and simulation integration technique of EPS control system with dynamic vehicle model. A full vehicle model interacted with EPS control algorithm is concurrently simulated on a single bump road condition. Dynamic responses of vehicle chassis and steering system resulting from road surface impact are evaluated and compared with proving ground experimental data. The comparisons will show reasonable agreement on tie-rod load. rack displacement, handle-wheel torque and tire center acceleration. This developed simulation capability can be used for EPS performance evaluation and calibration as well as for vehicle handling performance integration and synthesis.

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EPS Bead 혼입비율에 따른 CLC의 단열특성 (Insulation Properties of CLC according to Mixing Ratio of EPS Bead)

  • 이정택;이상수
    • 한국건축시공학회:학술대회논문집
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    • 한국건축시공학회 2023년도 봄 학술논문 발표대회
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    • pp.45-46
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    • 2023
  • CLC is used as a filling material for many buildings, and according to energy saving design standards, CLC also requires insulation performance. However, it shows lower insulation performance compared to organic insulation, so additional research is needed. Therefore, in this study, the insulation properties of CLC were analyzed by incorporating EPS beads with high insulation performance into CLC. In this experiment, EPS beads and blast furnace slag were replaced, and W/B was fixed at 33%. The EPS Bead mixing ratio was divided into 5 levels: 0, 0.5, 1.0, 1.5, 2.0 (%), and the experimental items were measured for apparent density and thermal conductivity. As a result of the experiment, the apparent density and thermal conductivity tended to decrease as the mixing ratio of EPS beads increased. It is judged that the density decreased due to the low density and the micropores inside, and the thermal conductivity also decreased.

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EPS업계의 지속적 국제 교류 필수적

  • 한국발포스티렌재활용협회
    • 환경사랑
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    • 통권69호
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    • pp.6-7
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    • 2013
  • 오늘 11월 2일부터 29일까지 태국 방콕에서 2013년도 아시아EPS생산자기구(AMEPS: ASIAN MANUFACTURES OF EPS) 총회가 개최된다. 이와 관련하여 AMEPS를 소개하고 AMEPS 활동을 중심으로 협회의 국제협력의 필요성을 짚어본다.

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세계의 포장 - 가리비 조개 선도유지에 탁월한 EPS상자 개발 (Development of Modified Atmosphere Packaging for Scallop)

  • 한국발포스티렌재활용협회
    • 환경사랑
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    • 통권55호
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    • pp.6-7
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    • 2009
  • 수산물 EPS상자의 용도가 날로 확대되는 가운데 일본 아오모리현 수산 종합연구센터 증양식 연구소는 가리비 조개의 선도유지를 위한 EPS상자를 개발했다. <월간 포장계> 2009년 2월호에 소개 된 개발 용기 내용을 요약했다.

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흰목이 균사 액체배양 조건 (Liquid culture condition of Tremella fuciformis mycelia)

  • 장현유;이찬;최성우;윤정원
    • 한국버섯학회지
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    • 제6권1호
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    • pp.27-31
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    • 2008
  • 현재까지 연구로는 흰목이 균사체에서 EPS 생산과 균사생장에 대한 적정 정치배양 조건이 연구되었다. 본 연구로부터 탄소원과 질소원의 처음 농도, 균사 형태와 발효조의 타입의 선택은 흰목이 균사체 EPS 생산에 가장 영향을 미친다는 것을 알게 되었다. 이들 결과는 공기주입식 반응기에서 EPS 생산성은 진탕탱크 반응기 보다 더 높았다는 점을 증명하였다. 또한 흰목이 균사의 정치배양의 생리적 생장에 대한 지식은 아직도 제한적이다.

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Exopolysaccharide Produced by Pediococcus acidilactici M76 Isolated from the Korean Traditional Rice Wine, Makgeolli

  • Song, Young-Ran;Jeong, Do-Youn;Cha, Youn-Soo;Baik, Sang-Ho
    • Journal of Microbiology and Biotechnology
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    • 제23권5호
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    • pp.681-688
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    • 2013
  • This work is aimed to increase knowledge of the functional exopolysaccharide (EPS) from lactic acid bacteria (LAB) in makgeolli, a Korean fermented rice wine. Among LAB strains isolated from makgeolli, strain M76 was selected as a functional strain producing a bioactive EPS, based on its antioxidative activity on the DPPH radical. The 16S rRNA gene sequencing analysis showed a high sequence similarity (99.0%) with P. acidilactici, but had different biochemical properties with the already known P. acidilactici type strains in the aspect of carbohydrates utilization. The obtained P. acidilactici M76 produced a soluble EPS above 2 g/l. One-step chromatography using gel filtration after ethanol precipitation from the supernatant of P. acidilactici M76 was enough to obtain purified EPS with a single peak, showing a molecular mass of approximately 67 kDa. Componential and structural analyses of EPS by TLC, HPLC, and FT-IR indicated that the EPS is a glucan, consisting of glucose units. The purified EPS had antioxidant activity on the DPPH radical of 45.8% at a concentration of 1 mg/ml. The purified EPS also showed proliferative effect on the pancreatic RIN-m5F cell line and remarkable protection activity on alloxan-induced cytotoxicity. This potent antioxidant and antidiabetic EPS by LAB in makgeolli may contribute to understanding the functionality of makgeolli.