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        검색결과 1,659

        824.
        2008.03 KCI 등재 구독 인증기관 무료, 개인회원 유료
        어린이 먹거리 안전관리 사업의 일환으로 어린이 식품 품질인증제도 연구를 수행하였다. 이 중 어린이 눈높이에 맞는 친숙한 브랜드 이미지 구축을 통하여 식품자체의 안전성을 확보함과 동시에 어린이에게 올바른 식품선택기준과 기회를 제공하기 위한 품질 인증마크를 개발하였다. 눈높이는 8~13세의 초등학생으로 하였고, “안전한 식품, 바른 영양, 건강한 어린이”라는 식약청 vision에 따라 로고 컨셉은 안심·미소, 인증·검증·보호, 건강으로 하였다. 명칭은 식약청내 공모를 통해 제안된「어린이용우수식품」, 「어린이안심식품」,「어린이우수식품」등 세 가지 안으로 하였으며, 명칭에 따라 총 36가지의 품질인증 로고시안을 제안하였다. 설문지는 이 중「어린이우수식품」으로 디자인된 12가지 시안으로 구성하였고, 초등학교 학부모(331명) 및 어린이(321명)를 대상으로 설문 조사를 실시하였다. 학부모와 어린이의 선호도를 종합한 결과 시안 8이 16.1%로 가장 높고, 시안 6(15.5%), 시안 3(14.0%) 순임을 알 수 있었다. 이러한 연구결과를 토대로 어린이 먹거리 안전성 확보 사업의 기반을 구축하여 어린이 기호식품에 대한 부모와 어린이의 선택권을 강화할 수 있으며, 바르고 안전한 식품을 선별하기 위한 검증으로 어린이 건강을 보호할 수 있을 것으로 사료된다.
        4,000원
        825.
        2008.03 KCI 등재 구독 인증기관 무료, 개인회원 유료
        염색폐수처리를 위하여 피페라진, 메타페닐렌디아미, 트리메소일 클로라이드를 이용하여 계면중합법으로 폴리아마이드계 나노분리막과 폴리아마이드계 역삼투막을 제조하였으며, 이들을 오스모닉스사로부터 구입한 역삼투막의 투과특성과 비교하였다. 이들의 기본 분리투과특성 조사를 위하여 PEG 600, Na2SO4, NaCl 수용액을 이용하였으며, 제조된 분리막들은 전형적인 나노복합막과 저압용 역삼투막의 특성을 나타내었다. 제조된 이들 분리막들을 이용하여 국내 염료 제조업체인 (주)경인양행으로부터 공급된 실제 염색폐수를 처리하였으며, 이때 이들의 분리투과특성을 살펴보았다. 또한 분리막을 이용한 폐수처리 시 발생되는 분리막 오염을 제거하기 위하여 일정시간마다 CIP를 실시하였다. 이때 3종류의 서로 다른 화학세정제를 사용하였으며, 이들의 세척성능을 살펴보았다.
        4,000원
        826.
        2008.03 KCI 등재 구독 인증기관 무료, 개인회원 유료
          It is important to manage quality and safety of a product for coping with fast-paced world effectively. This paper demonstrates an integrated model between ISO 9001 Quality Management System and Product Safety Management System. And the paper presents a
        4,000원
        827.
        2008.03 KCI 등재후보 구독 인증기관 무료, 개인회원 유료
        This study was performed to investigate airborne volatile organic compounds(VOCs), formaldehyde, respiratory particulate for concentration in primary schools. The concentrations of major indoor air pollutants(VOCs , benzene, toluene, ethylbenzene, xylene, styrene, formaldehyde, PM-10) were observed from November to December 2006. Sampling was undertaken at 81 primary schools. The sampling sites of air pollutants are classroom and hallway. VOCs with distribution of most of general environmental contamination material will be able to confirm that it shows the log-normal distribution which is similar exposure distribution. The exposure quality of VOCs and the place pollution level was indoor> hallway>outdoor, which whole is located in the metropolis and the industrial areas is higher than farm village area. It tried to observe the I/O ratio, it appeared highly from the interior of the material of most. The mean concentrations of formaldehyde, respiratory particulate were 22.07㎍/㎥, 88.06㎍/㎥ respectively. Indoor and outdoor ratios(I/O) of formaldehyde and respiratory particulate were 3.6 and 1.4, respectively. The concentration of respiratory particulate is 27.2% higher than guideline for school hygiene(100㎍/㎥). From the comparison in the construction year, the highest concentration of formaldehyde is showed under one year. However, as time passed by the concentrations of formaldehyde become lower.
        4,500원
        828.
        2008.03 KCI 등재 구독 인증기관 무료, 개인회원 유료
        The ㎝bryonic and postembryonic developments of Nezara antennata Scott were observed in 5 different rearing cages such as A (Cylindrical, ø 10 ㎝ × 4 ㎝), B (Cylindrical, ø 14.5 ㎝ × 2.8 ㎝), C (Rectangle, 6.5 L × 6.5 ㎝W × 10 ㎝H), D (Cylindrical, ø 9 ㎝ in bottom & ø 11.5 ㎝ in upper × 10.8 ㎝) and E (Cylindrical, ø 15 ㎝ × 7.5 ㎝) containing soybean and peanut seeds as food, and sponge soaked with water under laboratory condition of 24℃ and 15L : 9D. Hatchability ranged from 93 to 97%. Nymphal duration was shortest of 6 days in the 1st instar and longest of 10 days in the 5th instar. The nymphal duration was 38 to 39 days observed in the rearing cages. Emergence rate was in the range from 53 to 62% with highest in A and B cages. Adult longevity was 65 to 75 days for male, and 67 to 74 days for female, and was longest in the B cage. Total number of eggs laid by female adult was in the range from 51 to 56 without significant difference in the rearing cages, and was the most in the B cage. Accordingly, the reproductive rate of N. antennata for 1 generation was within 25 to 33 times, and was highest in the B rearing cage. Therefore, it could be concluded that B cage is most suitable for stable rearing of N. antennata under laboratory condition.
        4,000원
        830.
        2008.02 KCI 등재 구독 인증기관 무료, 개인회원 유료
        This paper focuses on the mackerel's visual ability and swimming capability, and aims to describe the behavior in capture and escape process by trawl. The visual sensory systems and reaction behavior based locomotory capability were analyzed and simulated. The ability of fish to see an object depends on the light intensity and the contrast and size of the object. Swimming endurance of the fish is dependent on the swimming speed and the size of the fish. Swimming speeds of the fish are simulated 3 types of the burst speed, the prolonged speed and the sustained speed according to the time they can maintain to swim. The herding and avoiding is typical reaction of the fish to the stimuli of trawl gear in the capture process. These basic behavior patterns of the virtual mackerel to the gear are simulated. This simulation will be helpful to understand the fishing processes and make high selectivity of fishing.
        4,000원
        831.
        2007.12 KCI 등재 구독 인증기관 무료, 개인회원 유료
        Traumatic eosinoph ilic gra nul oma(TEG) of the oral mucosa is considered to be a reactive benign lesion, which commonly ma nifests as an ulcer with eleva ted and indurated borders Clinically. this lesion simulates a maligna nt tumor Hi s to logy shows a diffut;e‘ dense. polymorphic. and eosinophil-rich cellular infiltrate. which extends deeply into the un derl ying soft ti ss ues‘ A major constituent of infïltrates is a population of mitotically active, large. atypical monol1 uclear cell s . Immunohi stologic eval uation of the large atypical cells has suggested a myofibroblastic 0 1' histi ocyti c origi 1γ However ‘ recent reports have shown that these cells are positive for CD30 antigen. We have descr ibed a case of ora l mucosal lesions with featu res of TEG that had a CD68 posite atypical cells. The large cells showed s trong pos itive for CD68‘ but negative for CD30. The sma ll Iymphocy tic cells exprerssed CD3. This case was interpreted as an atypical histiocytic g ran uloma .
        3,000원
        833.
        2007.12 KCI 등재 구독 인증기관 무료, 개인회원 유료
        We have determined the disk size of Be stars by using Hα emission. We observed spectra of Be stars with telescope in SNU, equipped with SB SGS (Santa Babara Self Guided Spectrograph) and CCD ST-8. The size of disk of Be stars was estimated with the Be star model of Grundstrom & Gies (2006). This study suggests that the medium resolution spectra taken with small telescope equipped with commercial spectrograph are useful to estimate the approximate size of the Hα emitting disk around Be stars.
        4,000원
        835.
        2007.12 KCI 등재 구독 인증기관 무료, 개인회원 유료
        A study wish to present relation of safety characteristic deployment, which has the safety demand, safety characteristic, protection characteristic, safety regulation, safety education of unit work process. Safety characteristic deployment will be used in safety management education system design with a method of safety management system construction of unit work process.
        4,000원
        836.
        2007.12 KCI 등재 구독 인증기관 무료, 개인회원 유료
        본 시험은 논에서 가축분뇨를 활용한 총체벼 재배 시 생육특성, 수량, 사료가치 및 토양의 화학성에 미치는 영향을 구명하기 위하여 2003년부터 2005년까지 3년간 축산과학원(수원) 포장에서 시험을 실시하였으며 그 결과를 요약하면 다음과 같다. 초장은 품종 간에는 추청벼에서 길었으며 가축분뇨 종류 간에는 돈분액비구> 발효돈분구> 발효우분구 순이었다. 주당 경수는 수원468호보다 추청벼가 많았으며 가축분뇨의 종류 간에는 돈분액비구> 발효돈분구> 화학비료구
        4,000원
        837.
        2007.12 구독 인증기관 무료, 개인회원 유료
        Soil texture, pH, organic carbon, organic matter, organic nitrogen, total phosphorus and chemical speciation were studied on the soil samples from Dok-do, Korea. Dok-do soil was composed mostly of silt, and textures were silt and silt loam. Soil pH was normally neutral but in some areas, acidic and very high content of organic matter. High content of organic matter explained the origin of Dok-do soil was related to the vegetation of the island. C/N ratio of the soil organic matter 15 meant the organic matter in the soil had moderately degraded plant debris. The most important chemical speciation of soil phosphorus in Dok-do was Residual P, meant the source of soil phosphorus was plant, and high ratio of Apatite P was considered to relate to the feces of water bird of the area.
        4,000원