• 제목/요약/키워드: Kick off

검색결과 15건 처리시간 0.03초

연꽃잎을 모사한 초소수성 표면 제작 (Fabrication of the Superhydrophobic Surface Inspired from Lotus-Effect)

  • 정대환;임현의;노정현;김완두
    • 대한기계학회:학술대회논문집
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    • 대한기계학회 2007년도 춘계학술대회A
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    • pp.409-414
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    • 2007
  • Wettability of solid surfaces with liquids is governed by the chemical properties and the microstructure of the surfaces. We report on the preparation of liquid-repellent surfaces using surface-attached monolayers of perfluorinated polymer molecules on porous silica substrates. A covalent attachment of the polymer molecules to the substrate is achieved by generation of the polymer chains through starting a surface-initiated radical-chain polymerization of a fluorinated monomer. To this, self-assembled monolayers of azo initiators are attached to silica substrates, which are used to kick off the polymerization reaction in situ. The growth of the fluorinated polymer films and the characterization of the obtained surfaces by surface plasmon spectroscopy, XPS, and contact angle measurements is described. It is shown that perfluorinated polymer films can be grown with controlled thicknesses on flat and even on porous silica surfaces, essentially without changing the surface roughness. The combination of the low surface energy coating and the surface porosity allows generation of materials which are both water and oil repellent.

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Quitline Activity in Rajasthan, India

  • Gupta, Rakesh;Verma, Vinit;Mathur, Pankaj
    • Asian Pacific Journal of Cancer Prevention
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    • 제17권sup2호
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    • pp.19-24
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    • 2016
  • Quitline activity in Rajasthan, India is a voluntary activity of Rajasthan Cancer Foundation (RCF) since April 2013. To kick-off, it took the benefit of the State Government- PIRAMAL SWASTHYA (PS)1 collaborative 104 Health Information Helpline that existed already in public-private partnership. It is a reactive quitline that helps callers through the counselors and nursing staff trained specifically through the weekly sessions held by the first author, the RCF resource on quitline. Besides structuring of the scripts for primary intervention and follow-ups after 1 week, 1 month, 6 months and a year, he also monitors calls, advices and coordinates with the supervisors to manage and analyze the data base, and reports to the PS lead at the Jaipur Center on overall performance and to plan strategic communication with the State Government on its outcomes. The quitline has limitations of its informal existence through a voluntary effort of RCF, no specific resource allocation, suboptimal data management, minimal awareness in the masses due to poor IEC (Information, Education and Communication; except its efforts made by RCF in last 1 year through the government-run State TV and City Radio) and staff shortage and its attrition due to lack of plan for career advancement. Despite these challenges in the year 2013, the quit line has registered a quit rate (for complete abstinence) of 19.93% amongst 1525 callers. The quit rate were 58.01% (304/ 524) among the responders at the 3rd follow-up at 18 months (in September 2014)2. In view of an increase in quit rate by 5- 9 times over the prevailing quit rate in the former ever daily users [both smokers and the users of smokeless tobacco (SLT)], efforts are being made by RCF in concurrence with PS to have this cost-effective model established formally with optimal resource allocation in collaboration with willing agencies (the State and Central Governments and the International Quitline Agencies) and its replication in 4 more states where PS is collaborating with the respective state governments similarly (Assam, Chhattisgarh, Jharkhand and Karnataka).

서해 고군산군도 선유도의 조간대 어류상 (Ichthyofauna at the Intertidal Zone in Seonyu-do Island, Gogunsan Islands, West Sea of Korea)

  • 신유신;김재구
    • 한국어류학회지
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    • 제36권2호
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    • pp.164-173
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    • 2024
  • 고군산군도 선유도의 조간대에 서식하는 어류의 종 조성을 확인하기 위해 2022년 3월부터 10월까지 선유도 조간대 3개 정점에서 어류를 채집하였다. 조사 기간 동안 총 9목 19과 45종 2,707개체의 어류가 채집되었고, 우점종은 533개체가 채집된 주둥치, 아우점종은 436개체가 채집된 날개망둑으로 확인되었다. 목 수준의 분류군별로는 농어목이 67.6%로 큰 비율을 차지하였고 쏨뱅이목이 18.5%의 비율을 보였다. 과 수준의 분류군별로는 망둑어과 13종으로 가장 많았고, 다음으로는 양볼락과와 장갱이과가 각각 4종이었다. 또한 본 조사에서 남해 및 동해남부에 주로 서식하는 왜망둑속 어종이 서해에서 처음 확인되었으며, 두줄베도라치도 2개체 채집되었다.

한국 미혼모의 임신 체험 연구 (A Phenomenological Study on Pregnancy Experience of Unmarried Korean Mothers)

  • 한진숙;문영숙
    • 부모자녀건강학회지
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    • 제5권2호
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    • pp.206-223
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    • 2002
  • The purpose of this study was to discuss the nature of pregnancy experience among unwed Korean mothers and to figure out what it meant for them, by asking some of them to reflect on themselves in a written form from interpretative and phenomenological perspective, based on van Manen's research method of the same approach. The subjects in this study were seven unmarried mothers in Korea. The data were collected from July through December 2000 through in- depth interview and observation. The statements of the participants were taped, recorded, analyzed and select essential themes. To have a phenomenological understanding of the pregnancy unmarried mothers, literary works, including essays and novels, were reviewed. The findings of this study were as below: The selected substantial themes about the pregnancy and birth experiences of the single mothers included 'hatred for boy friend,' 'hatred for the fetus,' and 'hatred for myself.' The unmarried mothers met their boy friends through the introduction of friends. At first, they were good friends, but they soon went on a date and had sexual relation with no common knowledge about sex. Most of them were aware of their pregnancy after they felt fetal movement, but they put off taking the test because they didn't want to accept the fact and feared it. Such an attitude was rare among married pregnant women, and being pregnant with no prior preparation or sexual knowledge is not common in Western countries. They felt guilty and informed their boy friends of the fact, but the boy friends didn't admit their responsibility and rejected the babies. This made the poor girls hate them, and it turned into severe abhorrence. They thought their lives were ruined by the babies, and wished they would disappear. They reproached the babies, hitting their own bellies or making a kick. They considered themselves to be abandoned and didn't want to live any more. Giving themselves up to despair, some attempted to commit a suicide. They hoped to die, thinking their death would solve the problem. When they lost a chance of abortion and were about to have the babies adopted, they felt sorry for them. The unwanted pregnancy gave them a pain, but they keenly felt they were loved by their mothers, and learned the value of family. It's attempted in this study to clearly show how much unmarried Korean mothers suffered from pregnancy, and this effort paved the way for seeing unwed mothers in a new light and having a better understanding of them, instead of sticking to general perception.

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상업우주사업(商業宇宙事業) 참가기업(參加企業)의 책임(責任)과 우주보험(宇宙保險) (The Liability of Participants in Commercial Space Ventures and Space Insurance)

  • 이강빈
    • 항공우주정책ㆍ법학회지
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    • 제5권
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    • pp.101-118
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    • 1993
  • Generally there is no law and liability system which applies particulary to commercial space ventures. There are several international treaties and national statutes which deal with space ventures, but their impact on the liability of commercial space ventures has not been significant. Every state law in the United States will impose both tort and contract liability on those responsible for injuries or losses caused by defective products or by services performed negligently. As with the providers of other products and services, those who participate in commercial space ventures have exposure to liability in both tort and contract which is limited to the extent of the resulting damage The manufacturer of a small and cheap component which caused a satellite to fail to reach orbit or to operate nominally has the same exposure to liability as the provider of launch vehicle or the manufacturer of satellite into which the component was incorporaded. Considering the enormity of losses which may result from launch failure or satellite failure, those participated in commercial space ventures will do their best to limit their exposure to liability by contract to the extent permitted by law. In most states of the United States, contracts which limit or disclaim the liability are enforceable with respect to claims for losses or damage to property if they are drafted in compliance with the requirements of the applicable law. In California an attempt to disclaim the liability for one's own negligence will be enforceable only if the contract states explicitly that the parties intend to have the disclaimer apply to negligence claims. Most state laws of the United States will refuse to enforce contracts which attempt to disclaim the liability for gross negligence on public policy grounds. However, the public policy which favoured disclaiming the liability as to gross negligence for providers of launch services was pronounced by the United States Congress in the 1988 Amendments to the 1984 Commercial Space Launch Act. To extend the disclaimer of liability to remote purchasers, the contract of resale should state expressly that the disclaimer applies for the benefit of all contractors and subcontractors who participated in producing the product. This situation may occur when the purchaser of a satellite which has failed to reach orbit has not contracted directly with the provider of launch services. Contracts for launch services usually contain cross-waiver of liability clauses by which each participant in the launch agrees to be responsible for it's own loss and to waive any claims which it may have against other participants. The crosswaiver of liability clause may apply to the participants in the launch who are parties to the launch services agreement, but not apply to their subcontractors. The role of insurance in responding to many risks has been critical in assisting commercial space ventures grow. Today traditional property and liability insurance, such as pre-launch, launch and in-orbit insurance and third party liability insurance, have become mandatory parts of most space projects. The manufacture and pre-launch insurance covers direct physical loss or damage to the satellite, its apogee kick moter and including its related launch equipment from commencement of loading operations at the manufacture's plant until lift off. The launch and early orbit insurance covers the satellite for physical loss or damage from attachment of risk through to commissioning and for some period of initial operation between 180 days and 12 months after launch. The in-orbit insurance covers physical loss of or damage to the satellite occuring during or caused by an event during the policy period. The third party liability insurance covers the satellite owner' s liability exposure at the launch site and liability arising out of the launch and operation in orbit. In conclusion, the liability in commercial space ventures extends to any organization which participates in providing products and services used in the venture. Accordingly, it is essential for any organization participating in commercial space ventures to contractually disclaim its liability to the extent permitted by law. To achieve the effective disclaimers, it is necessary to determine the applicable law and to understand the requirements of the law which will govern the terms of the contract. A great deal of funds have been used in R&D for commercial space ventures to increase reliability, safety and success. However, the historical reliability of launches and success for commercial space ventures have proved to be slightly lower than we would have wished for. Space insurance has played an important role in reducing the high risks present in commercial space ventures.

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