• 임산에너지
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• 제25권2호
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• pp.28-33
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• 2006

본 연구에서는 대기오염에 대한 저항성과 내충성, 항균성 등이 강하여 가로수로 많이 심어진 은행나무에 있어서, 그 잎의 파티클보드 제조 원료로서의 가능성을 모색하고자 하였다. 이를 위해 은행나무 잎을 분쇄한 다음 목재 파티클에 소량 혼합하여 파티클보드를 제조하였다. 은행나무 잎을 혼합하여 제조한 파티클보드의 물리, 기계적 성질을 조사하고 포름알데히드 방출량의 저감효과에 대해 검토하였다. 목재 파티클에 대하여 은행나무 잎을 $1{\sim}5%$ 첨가하여 제조한 파티클보드는 은행나무 잎을 첨가하지 않은 대조구에 비해 밀도, 함수율, 흡수두께팽창률 등 물리적 성질과 휨강도, 박리강도와 같은 기계적 성질은 크게 감소하지 않았으며 모두 KS 파티클보드의 기준을 만족하였다. 은행나무 잎의 혼합량에 따라 포름알데히드 방출량은 점차 감소하였으며, 특히 은행나무 잎이 3% 첨가된 파티클보드의 포름알데히드 방출량은 $2.81mg/{\ell}$에서 $1.66mg/{\ell}$로 대조구에 비해 약 40% 감소하였다. 은행나무 잎이 지닌 고유한 항균성에 덧붙여 본 연구로부터 얻어진 결과는 낙엽으로 폐기되는 은행나무 잎을 원료로 포름알데히드 방출량이 낮은 기능성 파티클보드를 제조할 수 있다는 새로운 사실을 보여주고 있다.

• Journal of Acupuncture Research
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• 제15권2호
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• pp.519-536
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• 1998

Purpose ; This Investigation was aimed to find out the Causes, Symptoms, Treatment, and Acupuncture of Epiphora(Watery Eye) in Oriental Medicine Methods ; 49 books were surveyed from to recent published books those referred to Epiphora. Results ; In Oriental Medicine, Epiphora is divided into two types; Cool Watery eye and Hot Watery eye. Both cool and hot type can be redivided into the mild and serious cases. The mild Watery eye means tears on the cheek with the wind; The serious Watery eye means tears on the cheek unrelated the wind from time to time. Conclusions ; The cause of Epiphora can be concluded with the shortage of functional division of Liver and Kidney(肝腎虛), and the chaos and fever of Liver meridian(肝經風熱). In Acupuncture agenst Epiphora, the acupuncture point at Bladder, Gallbladder and Liver meridian occupied the high level of the most often-used acupuncture point list; The acupuncture point at the portion of head and neck, upper extremities, lower extremities, and back, especially around orbit, were mainly used against Epiphora. Recently, beyond conventional acupuncture, Auricular- Acupuncture(耳鍼療法), Herb- Acupuncture(藥鍼療法), Bleeding-Acupuncture(潟血療法), Manipulation(手技療法) used against Epiphora.

• 동아시아식생활학회지
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• 제19권2호
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• pp.202-209
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• 2009

This study was conducted to gather the basic data on the spread of the domestic kiwifruits, and the development of the manufactured goods and the health functional foods produced using kiwifruits. We determined the chemical compositions of four types of kiwifruits cultivated in Korea, Daeheung, Bidan, Haegeum and Hayward. In addition, we measured the anti-microbial activities and cytotoxicities of these types of kiwifruits. The vitamin C contents of the kiwifruits increased in the order of Bidan (93.82 mg/100 g), Daeheung (85.89 mg/100 g), Haegeum (83.73 mg/100 g) and Hayward (75.28 mg/100 g). The total amino acids contents per 100 g of kiwifruit (dry weight basis) were 483.97 mg (Haegeum), 453.08 mg (Hayward), 437.27 mg (Bidan) and 369.35 mg (Daeheung). The K and Ca contents of the kiwifruits ranged from 14.56~37.12 mg/L and 1.94~8.24 mg/L, respectively; however, the Fe, Mg, Zn and Cr contents all less than 1.83 mg/L. The antimicrobial activities of methanol extracts of kiwifruits against five gram positive bacteria at concentration of 2,000 mg/L in terms of inhibition diameter ranged from 8.8~12.8mm, while raged from 9.2~13.1mm against three gram negative strains of bacteria. The hyperplasia inhibition of lung cancer cells (Calus-6) by 800 mg/L kiwifruits extracts of Bidan, Haegeum, Daeheung and Hayward kiwifruits were 21.2%, 9.5%, 6.7% and 5.0%, respectively. Consequently, it was assumed that kiwifruits was rich in vitamin C, amino acids and K, and that they would therefore be useful in processed goods.

• 경영과정보연구
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• 제32권2호
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• pp.137-164
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• 2013

본 연구는 서비스마케팅 분야에서 주목받고 있는 고객참여행동과 프렌드십의 관계에 대해 살펴보고, 이들의 관계마케팅 성과에의 영향에 대해 규명한다. 고객참여행동은 서비스접점에서 서비스제공자와의 상호작용과정에 강력한 영향을 미치고 있어 서비스접점은 기능적 요소뿐만 아니라 사회적 요소를 발생시키는 주요한 순간이다. 따라서, 지난 선행연구들에서 밝혀진 고객참여행동의 고객만족 및 서비스 품질 향상에의 기여와 같은 내용에서 벗어나 고객참여행동과 사회적 결속에 따른 관계마케팅적 성과에 대해 살펴보고자 하는 것이다. 연구의 결과, 고객참여행동의 상호작용과정에 미치는 영향과 상호작용과정을 통해 형성되는 프렌드십의 관계는 직접적으로 유의한 긍정적인 영향이 있는 것으로 실증되었다. 또한, 고객참여행동 및 상호작용과정을 통해 형성된 프렌드십은 관계의 질 및 고객충성도와 같은 관계마케팅 성과에도 긍정적인 영향이 있는 것으로 나타났다. 결론적으로, 고객참여행동은 서비스접점에서의 상호작용과정을 풍부하게 하고 이를 통해 고객과 서비스제공자 간의 프렌드십 형성이 가능하며, 이는 궁극적으로 관계적 성과로 이어질 수 있다고 평가할 수 있다.

• 항공우주정책ㆍ법학회지
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• 제14권
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• pp.151-174
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• 2001

Theories of international organization have explained the creation, maintenance, and decline of international organization. However, their explanations on changes of international organization have been much more different one another. For example, the theory of hegemonic stability argues that international organization can be created and maintained only by a hegemonic state and will be declined if the hegemonic state decline. On the other hand, the functional approach believes that the positive functions and effects that international organization provides motivate states to create and maintain the organization, while the game-theoretical approach explains international organization based on cost-benefit calculation of rational states. Thus, the empirical evaluation of the arguments of the theories of international organization and defining the major factors that determine international organization are necessary not only for the development of theories of international organization but also for making desirable policies toward international organization. For the purpose, this paper compares and contrasts the three major theories of international organization and applies the approaches to the case of the International Civil Aviation Organization (ICAO) to test their arguments. Since the ICAO has been rarely examined by the theories of international organization, the case study could be desirable case to evaluate theories of international organization. In this sense, this paper attempts to define the major factors that determine the creation, maintenance, and decline of the ICAO. In particular, since the Korean government has changed its policy for air transport security system recently, it will investigate the role of ICAO on the policy change to define the limits and strength of ICAO. In conclusion, this paper will assess the relative explanatory power of each approach based on the analysis of the creation and changes of ICAO

• 대한본초학회지
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• 제27권3호
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• pp.75-82
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• 2012

Objective : In the present study, we investigated the pharmacological profile of the aqueous extract of $Patrinia$ $scabiosaefolia$ Fischer ex Link (EPS) and $Patrinia$ $villosa$ Jussieu (EPV) for its anti-asthmatic activities. The purpose of this study is to ascertain if EPS result in better anti-asthmatic activities and functional outcome as compared with EPV. Methods : In this study, BALB/c mice were systemically sensitized to ovalbumin (OVA) followed intratracheally, intraperitoneally, and by aerosol allergen challenges. We investigated the effect of EPS, EPV on the recruitment of pulmonary inflammatory cells, various immune cell phenotypes, Th1/Th2 cytokine gene expression and production and histamine production in serum. Results : In BALB/c mice, we found that EPV-treated groups had more effectively suppressed inflammatory cell infiltration of lung and BALF, B220+IgE+, CD11b+Gr-1+ cell population in lung and these occurred by suppressing the gene expression of IL-4, IL-5 and IL-4 cytokine production in BALF and serum. Conclusions : These results suggest that EPV may play an important role in the control of anti-asthmatic activities by down-regulation of Th2 cytokine (especially IL-4, IL-5). In general, EPV has shown a better anti-asthmatic activities compared to EPS.

• 한국통신학회논문지
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• 제33권4A호
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• pp.387-393
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• 2008

본 논문에서는 TDD HSDPA(Time Division Duplex High Speed Downlink Packet Access)와 WiBro(Wireless Broadband Portable Internet) 와 같은 이동통신 규격을 지원하는 SDR(Software Defined Radio) 단말 모뎀 플랫폼을 제안한다. 제안하는 SDR 플랫폼은 DSP, FPGA, 마이크로프로세서 등 프로그래밍 가능한 소자들을 채용하여 HSDPA와 WiBro와 같은 기능을 담당하는 프로그램 등이 하드웨어 플랫폼 상에 다운로드 가능하도록 하였다. 제안하는 플랫폼은 이동통신네트워크의 멀티모드 단말시스템을 위한 물리계층 규격의 기능검증 등에 사용될 수 있다. 본 논문은 먼저 HSDPA와 WiBro 시스템의 물리계층 수신구조를 설명하고, 제안하는 SDR 플랫폼의 하드웨어 구현 방법과 각 모드에 요구되는 기능과 구현한 하드웨어 플랫폼 상에서의 최적화된 신호 흐름의 설계방법을 제시한다. 마지막으로 테스트신호를 이용한 루프백(loopback) 테스트를 통하여 제안한 SDR 플랫폼 상에 동작하는 각 모드 별 링크 성능을 보여준다. 제시된 실험 성능은 컴퓨터 시뮬레이션 성능과 비교하였다.

• 한국세라믹학회지
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• 제53권2호
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• pp.215-221
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• 2016

In this study, the utilization of the by-products of various industries was examined using raw materials of CSA high-functional cement such as coal bottom ash, red mud, phosphate gypsum, etc. Technology to improve energy efficiency and reduce $CO_2$ was developed as part of the manufacturing process; this technology included lower temperature sintering ($150{\sim}200^{\circ}C$) than is used in the OPC cement manufacturing process, replacement of CSA cement with the main raw material bauxite, and a determination of the optimum mix condition. In order to develop CSA cement, a manufacturing system was established in the Danyang plant of the HANIL Cement Co. Ltd., in Korea. About 4,200 tons of low purity expansion agent CSA cement (about 16%) and about 850 tons of the lime-based expansion agent dead burned lime (about 8%) were produced at a rate of 60 tons per hour at the HANIL Cement rotary kiln. To improve the OPC cement properties, samples of 10%, 13%, and 16% of CSA cement were mixed with the OPC cement and the compressive strength and length variation rate of the green cement were examined. When green cement was mixed with each ratio of CSA cement and OPC cement, the compressive strength was improved by about 30% and the expansibility of the green cement was also improved. When green cement was mixed with 16% of CSA cement, the compressive strength was excellent compared with that of OPC cement. Therefore, this study indicates the possibility of a practical use of low-cost CSA cement employing industrial wastes only.

• 한국임상약학회지
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• 제17권1호
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• pp.38-45
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• 2007

Background: The multitude of the therapeutic usefulness of intra-articular injection of hyaluronate on oateoarthritis of the knee is still in question. The objective of this systemic review was to elucidate both the therapeutic efficacy and the safety of intra-articular administration of hyaluronic acid for degenerative osteoarthritis of the knee joints. Methods: I searched MEDLINE and Korea Medical Database (KMbase) from January 1990 to April 2007 using a combination search terms for knee osteoarthritis and hyaluronic acid and a filter for randomized controlled trials. I extracted data on pain at rest, and during or just after movement, on joint function, and on adverse events. Results: Ten trials that reported usable quantitative information on any of the predefined end points were identified and included in the systemic review. Intra-articular injection of hyaluronic acid can decrease symptoms of osteoarthritis of the knee. The study revealed significant improvements in pain and functional outcomes with few adverse effects. However, there was significant between-study heterogeneity in the estimates of the efficacy of hyaluronic acid. Sub-group analysis showed that lower methodological quality such as a single-blind or single-center design resulted in higher estimates hyaluronic acid efficacy, and that patients older than sixty years of age and those with the most advanced radiographic stage of osteoarthritis were less likely to benefit from intra-articular injection of hyaluronic acid. Conclusion: According to the currently available evidence, intra-articular hyaluronic acid has been proven clinically effective for the patients bearing the knee osteoarthritis with NSAID-induced GI troubles or inapplicable to any surgery, and may be associated with lower risk of adverse events.

• 한국조리학회지
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• 제17권4호
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• pp.285-294
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• 2011

본 연구는 뽕나무열매인 오디를 이용하여 오디농축액을 첨가하여 일상생활에 쉽게 접하는 머핀을 제조하였다. 오디머핀의 최적화를 찾아내고 품질특성과 신제품의 가능성을 알아보고자 하였다. pH, 비중, 제품의 비체적, 색도, 기계적 품질 특성과 기호도 검사를 실시하였다. 오디 농축액 첨가량이 많을수록 pH는 낮고 비중은 감소하였다. 색도는 L, a, b값이 감소하였고 탄력성은 증가하였다. 외관은 15% 첨가군이 6.4로 가장 높은 값을 나타냈고, 나머지 시료는 5.1-5.9사이의 값으로 비슷한 기호도를 보였다. 전반적인 기호도는 20%첨가군이 가장 높은 기호도를 보였고 20% > 15% > 10% > 0% > 25%순 이었다. 오디농축액의 첨가로 품질의 저하가 있었지만 유지나 물량의 조절과 유화제의 첨가로 제품의 향상이 기대되며 15~20첨가로 기호도가 높아지리라 사료된다.