• Title/Summary/Keyword: 컴포지트

Search Result 50, Processing Time 0.023 seconds

How Phenolic Composites were chosen - In Case of England (3) (페놀 컴포지트 실용화의 길 - 영국의 경우 (CASE STUDY 3))

  • Nomaguchi, Kanemasa;Forsdyke, Ken L.;Brown, Denver E.
    • Composites Research
    • /
    • v.17 no.3
    • /
    • pp.52-61
    • /
    • 2004
  • "Phenolic composites", one of safety composites, was also chosen to build boats in England. One of the authors, Mr. Forsdyke and his researcher, Dr. Orpin describe how phenolic composites were chosen as construction material for marine application. The reader can get very good understandings from design point of view through this paper.his paper.

Designed of rPP/d2w®/ZnO Nanocomposite Flexible Film for Food Packaging and Characterization on Mechanical and Antimicrobial Properties (산화분해촉매를 함유한 rPP/ZnO 나노컴포지트 유연식품포장필름 제조 및 물성 특성 연구)

  • Lee, Jin-kyoung;Gil, Bo-min;Lee, Dong-jin;Lee, Ik-mo
    • KOREAN JOURNAL OF PACKAGING SCIENCE & TECHNOLOGY
    • /
    • v.24 no.1
    • /
    • pp.1-11
    • /
    • 2018
  • In this study, pro-oxidant($d2w^{(R)}$) and rPP/ZnO nanocomposite flexible films for food packaging were prepared, and their mechanical and antimicrobial properties were investigated. As a result, the carbonyl index and hydroxyl index increased with exposured time to heat and UV rays. Surface analysis showed that the addition of zinc oxide improved the dispersibility and compatibility of the polymer, so that the surface of the composite film was smooth and the zinc oxide particles were smaller than the compared film. And it kept the physical properties by heat and UV ray blocking effect, and it worked to reduce decomposition. In the antimicrobial activity test, the microbial reduction rate was 3 logs or more at the use concentration of zinc oxide. The tensile strength was increased and the elongation was decreased. Oxidative degradability of multi-layered film in UV exposured for 72 hours, the molecular weight of the film decreased by 75.6%, 1,294 g/mol Mn and 5,920 g/mol Mw. In the safety analysis of food packaging materials, we obtained that are in standard of polypropylene, a food contact material of domestic law.

보호기능이 향상된 지오컴포지트의 제조 및 물성

  • 전한용;정진희;김소영;최윤희;김홍관
    • Proceedings of the Korean Fiber Society Conference
    • /
    • 1998.04a
    • /
    • pp.156-159
    • /
    • 1998
  • 토목섬유는 목적에 따라 보강, 필터, 차수, 분리등의 기능으로 널리 사용되고 있으며 최근에는 한가지 기능을 강화하거나 다기능성을 부여하기 위해 복합화한 재료들이 사용되고 있다. 현재 토목섬유는 여러종류의 관련제품이 개발되어 상품화되고 있으나 널리 사용되고 있는 품목은 가정용ㆍ산업용 폐기물 매립시 발생되는 침출수 차단 목적과 연약지반의 지지력 보강, 부등침하방지에 의한 지반보호, 흙 댐, 터널 건설 등에 이용되는 지오멤브레인과 세립토ㆍ자갈ㆍ돌덩어리ㆍ블럭등의 혼합을 막아주는 분리기능, 자체의 인장강도에 의해 흙 구조 물의 안정성을 증가시키는 보호기능을 갖는 지오텍스타일이 있다.(중략)

  • PDF

How Phenolic Composites were chosen - In Case of England (7) (페놀 컴포지트 실용화의 길 - 영국의 경우 (CASE STUDY 7))

  • Nomaguchi Kanemasa;Forsdyke Ken L.
    • Composites Research
    • /
    • v.18 no.1
    • /
    • pp.55-66
    • /
    • 2005
  • Beside fire resistance, for Phenolic Composites(here-in-after PCs), in actual, moisture resistance are also needed when they are applied to components in wet uses such as in Naval vessels and in off-shore operations where direct water contact may be expected. PCs have so-called 'Micro-porous' when they are made by normal GRP manufacturing techniques, which causes much larger amounts of water absorption in them to higher level of around $7\%$. So, this figure, which indicate impending disaster in a polyester matrix laminate, has made some specifiers suspicious of the effect of the water on mechanical performance of PC in 'wet' service. To solve this problem, a large amount work has been carried out by workers in UK and US. This paper is an attempt to explain that the effect of the high water absorption of PCs is not the disaster that some 'prophets' may foretell. Let's open our next door fur better society much safetyfied by our own efforts with PCs. like in UK.

MVC Architecture-aware Restructuring of Web Apps (MVC 아키텍처 인지하는 웹 앱 재구조화)

  • Oh, Jaewon;Ahn, Woo Hyun;Kim, Taegong
    • Journal of the Korea Institute of Information and Communication Engineering
    • /
    • v.21 no.11
    • /
    • pp.2153-2166
    • /
    • 2017
  • Web apps have a problem that they cause same data to be repetitively retrieved, processed, and displayed when web browsers load different web pages. To resolve the problem, this paper presents and evaluates a new method for restructuring of Java web apps. This approach dynamically analyzes Java web apps from the MVC (Model-View-Controller) architecture point of view and identifies redundant data by using the composite view pattern. Then the input apps are restructured in order not to load the redundant data when users make requests for new pages. This restructuring generates new web apps that conform to the MVC architecture and improve the performance of input web apps. The experimental results showed that when compared to legacy web apps, the restructured apps' response time was reduced on desktop PCs and mobile devices by 38% and 55%, respectively. In addition, case studies using open-source web apps showed the applicability of the proposed approach.

ISIS Architecture for Developing Complex Enterprise Applications (복잡한 엔터프라이즈 응용 개발을 위한 ISIS 아키텍처)

  • Jo, Eun-Hwan;Lee, Kap-Hoon;Lee, Min-Soo;Lee, Bong
    • Journal of KIISE:Computing Practices and Letters
    • /
    • v.16 no.4
    • /
    • pp.392-404
    • /
    • 2010
  • Recently, as both business processes and IT systems become ever more complex. Especially, enterprise applications tend to become unmanageably complex and increasingly costly to maintain. Therefore complexity is the insidious enemy of software development. It is critical to have a methodology that recognizes and manages this enemy effectively. In this paper, we propose ISIS (Integrated System of Independent Subsystems) - the architectural style needed to develop the complex enterprise applications. The ISIS was developed to meet the challenge of reducing the complexity of a larger enterprise application today. It gives us architecture models for reducing development complexity and composite application. The enterprise application is partitioned into a collection of independent subsystems using ISIS decomposition schemes and equivalence relations. We use middleware named ISIS engine that provides a service for subsystems interoperability by enabling the integration of distributed, cross-platform subsystems. We have implemented an ITSM system that achieves our objectives, reducing development complexity, using the ISIS architecture. Finally, ISIS architecture provides greater flexibility and productivity when an organization needs either to change its business processes, or to update the underlying systems.

How Phenolic Composites were chosen - In Case of England (6) (페놀 컴포지트 실용화의 길 - 영국의 경우 (CASE STUDY 6))

  • Nomaguchi, Kanemasa;Forsdyke, Ken L
    • Composites Research
    • /
    • v.17 no.6
    • /
    • pp.58-66
    • /
    • 2004
  • As the first modem industrialized country in the world, so England UK was safetyfied from "SMOKE FIRE DANCER" at London Underground as the first country also. Indeed, the quick decision maker of Grate London Metropolitan must be serious, while the technology developing people also so eager in rebuilding safer composite system for public security accumulating basic data at their laboratories. Mr. Ken L. Forsdyke, one of co-authors of this paper, who was the project leader at BP Chemicals International Company at that time, is now telling you some key points adding to the stories he mentioned before in this series, "How Phenolic Composites were chosen". Now, with another article of the basic data, our tales of "In Case England" will be closed. May God save people from "Horror SMOKE FIRE".ople from "Horror SMOKE FIRE".IRE&".ot;.

How Phenolic Composites were chosen - In Case of England (5) (페놀 컴포지트 실용화의 길 - 영국의 경우 (CASE STUDY 5))

  • Nomaguchi, Kanemasa;Forsdyke, Ken L.;Brown, Denver E.
    • Composites Research
    • /
    • v.17 no.5
    • /
    • pp.85-95
    • /
    • 2004
  • Other than in the fields of rolling stock and marine, in England, UK, Phenolic Composites (herein after, PCs) have been significantly utilized to fire protecting panels in construction, in particular, in architectures. In general, indeed, so-called "Plastic" or "Synthesized Resins" have been applied successfully in our societies all over the world, however, once, when ignited from somewhat reason, they burn much easily generating large amount of "SMOKE" from their nature of petroleum-borne materials as a matter of fact, people have forgotten about it. "SMOKE" caused many fire accidents horror tragedies as everyday people know today. The experts in this field such as PC engineers, researchers and others can take their responsibilities to explain it, persuade it and realize "Safer Environment for People" with well-experienced and technology innovated PCs. In this paper, the co-authors, collaborating UK and Japan, are making efforts to report how the PCs work good jobs to our societies showing some successful track records in construction or architecture fields in UK. How about on this matter in Japan\ulcorner "SMOKE fire" is always waiting fur us. We should stop smoking and SMOKE fire, in our public places.We should stop smoking and SMOKE fire, in our public places.