• 한국의류학회지
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• 제25권3호
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• pp.569-576
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• 2001

The purpose of this study is to develop multifunctional fibers by sticking cinnamon microcapsules on cotton knit. The prepolymer was made from urea-formaldehyde for usage of wall materials of microcapsules. The parameters for adoptable condition are 5000rpm of agitation speed, 1% of dispersions concentration according to the observation with SEM and particle analyzer. The Antimicrobial activity of cotton knit treated with capsule was increased greatly and maintained on the laundering cycle.

• 한국수산과학회지
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• 제22권4호
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• pp.214-218
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• 1989

SEM observation revealed that the gastric mill of Nyctiphanes australis consists of paired cluster spines and paired lateral teeth, while the filter-press is absent. The morphology of the gastric mill was extremely constant; the numbers of both setiform processes of cluster spines and serrated spines of lateral teeth increased with increasing body length. The cluster spines of N. australis consisted of a single row of stout setiform processes but the lateral teeth comprised a large projection with small serrated spines. The cluster spines are symmetrical in setiform process distribution, however, the lateral teeth are asymmetrical in number of serrated spines.

• 한국세라믹학회지
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• 제28권9호
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• pp.730-738
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• 1991

Machinable ceramics containing ${\beta}$-spodumene crystal was fabricated by melting method using domestic pyrophyllite. Raw materials were batched by molar ratio of 8:2, 7:3, 6:4, and 5:5 for fluorophlogopite and ${\beta}$-spodumene. These compounds were melted at 1450$^{\circ}C$ for 1 hr and formed in graphite mold. Base glasses were heat-treated according to 2-step schedule which was determined from DTA, XRD analysis and SEM observation. Fabricated machinable ceramics have excellent themal, chemical properties and machinability.

• 생명과학회지
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• 제9권6호
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• pp.698-703
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• 1999

For the nitrate removal in recirculating aquaculture system, a denitrifying bacterium, Pseudomonas fluorescens, was isolated from municipal sewage and the cells were immobilized in modified-polyvinly alchol (PVA) gel beads. The immobilized cells in both the fixed-and fluidized-bed reactors showed 98% of denitrification efficiency with 6hr HRT, and the removal efficiency of total organic carbon (TOC) was above 90%. Form scanning electron microscopy (SEM) observation, it was known that biofilm formed in fixed-bed reactor was thicker than that formed in fluidized-bed reactor as operation time passed.

• Animal Systematics, Evolution and Diversity
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• 제7권1호
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• pp.101-110
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• 1991

1989년과 1990년의 봄철에 전남,북과 경남일원의 신간계류에서 채집된 강도래 과의 Oyamia coreana Okamoto와 Kiotina decorata(Zwick) 2종에 대한 성충의 외부형태와 난의 전자현미경에 의한 미세구조 관찰을 실시하였다.

• 한국식품영양학회지
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• 제1권2호
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• pp.1-8
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• 1988

The morphological changes of fresh beef treated with ficin(0.1% : 35$^{\circ}C$ 2hrs, 6hr,) were examined with scanning electron microscope(SEM), the results obtained were as follows ; Connective tissue protein in fresh beef treated with ficin was occurred solubilization with time and gradually trasformed from a definite form into amorphous form, followed by showing an opening-up phenomenon again and subdivision. Myofibrillar protein was cracked and breaked slightly, followed subdivision with time.

• 보존과학회지
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• 제28권3호
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• pp.217-228
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• 2012

문화재의 훼손은 다양한 형태로 발생된다. 특히 옥외에 노출되어 있는 금속문화재의 표면 손상은 인위적인 훼손인 페인트나 유성물질 성분의 낙서 등과 같은 행위로 유물의 역사적, 미술사적 가치를 저하시킨다. 그러므로 본 연구에서는 친환경적이고 인체에 무해한 dry-ice pellet cleaning을 페인트 및 유성물질을 제거하는데 적용하였으며 결과를 습포법과 비교하였다. 실험 결과 습포법으로 제거할 경우 유성페인트는 제거는 되었으나 금속 표면에 얼룩이 남아 있었으며 락카 스프레이는 제거가 잘 이루어지지 않고 수지가 들떠 있는 현상이 나타났다. Dry-ice pellet cleaning으로 유성페인트를 제거한 경우 표면관찰, 색도계, FT-IR, SEM 분석을 통해 유물 표면에 손상 없이 깨끗하게 제거되었으며 락카 스프레이로 제거한 경우 육안 관찰로는 깨끗하였으나 SEM 관찰 결과 미세 입자가 표면에 남아있는 것이 관찰되었다. 그러므로 본 연구를 통해 dry-ice pellet cleaning의 대체 가능성과 한계성을 함께 확인할 수 있었다.

• Journal of the Korean Wood Science and Technology
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• 제29권2호
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• pp.84-90
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• 2001

본 연구는 국산 솜대와 인도네시아산 TALI를 원료로 하여 제조한 Zephyr의 기본조직특성을 SEM관찰 및 화상분석법을 이용하여 조사하였다. SEM관찰의 결과, 국산 솜대 Zephyr 의 형태는 유관속초를 구성하는 후벽섬유의 세포벽이 두껍고 세포내강이 거의 없으며 조직이 치밀하였다. 세포간층의 분리가 어렵기 때문에 유관속초간의 집단적인 할렬이 두드러졌고 할렬형태가 균일하지 않았다. 이에 비해 인도네시아산 TALI Zephyr의 형태는 유관속초를 구성하는 후벽섬유의 세포벽이 얇고 세포내강이 크며 세포간극이 많아 세포간층의 분리가 쉬웠으며 가늘고 균일하게 할렬되었다. 화상분석법으로 두 죽종의 횡단면상의 유관속초용과 이들을 구성하는 후벽섬유의 세포벽율을 조사한 결과, 국산 솜대의 유관속초율은 인도네시아산 TALI보다 낮았지만, 후벽섬유 세포벽률은 더 높았다. 이상의 결과로 국산 솜대와 인도네시아산 TALI는 유관속초를 구성하는 후벽섬유의 양과 분포양식의 차이에 의해 제조된 Zephyr의 형상에 차이가 있음을 알 수가 있었다.

• 디지털융복합연구
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• 제15권10호
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• pp.551-557
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• 2017

헤어(Hair)의 연출은 현대인의 개성 창출을 위한 요소로 작용하고 있으나 염색(Dye), 펌(Prem) 등과 같은 반복적인 화학 시술은 모발 손상을 초래하게 된다. 손상을 줄이기 위한 화학 시술 방법으로 헤어 트리트먼트(hair treatment)에 대한 중요성이 크게 부각되고 있다. 따라서 본 연구에서는 염색 시, 헤어 트리트먼트의 사용이 실제 모발의 형태학적 손상도와 모발 내의 유독성 미네랄과 필수 미네랄의 수치에 어떠한 영향을 미치는지를 확인하기 위해, 20대 전 후반 5명의 모발(normal hair, NH)을 채취하여 염색 전 모발(NH), 염색 모발(dye hair, DH), 염색제와 헤어 트리트먼트 혼합 모발(dye with treatment hair, DTH)의 형태학적 손상도를 관찰하였으며, 모발 속 중금속 및 미네랄(mineral) 함량분석을 통하여 염모제와 헤어 트리트먼트에 의한 모발 내 중금속 변화를 조사하였다. 모발의 형태학적 영향은 DTH 모발에서 DH나 NH에 비하여 큐티클 형태의 배열이 대체적으로 균일하게 보여 지며, 들뜸이 차분해지고 선이 매끄럽게 관찰 되어 손상도가 적게 관찰되었다. 미네랄 함량의 농도 부분에서는 대체적으로 균형범위에 있었으나 유독성 미네랄 부분에서는 바륨(Ba), 영양미네랄 부분에서는 Na, Ca, Mg의 농도가 NH모발, DH모발, DTH모발에서 균형범위보다 높게 나타났다.

• 대한화장품학회지
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• 제22권2호
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• pp.182-192
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• 1996

In this study, the relationship between wax matrix in lipstick and sweating was investigated by observing the change of size and shape of wax matrix with sweating by Scanning Electron Microscopy (SEM). For observation by SEM, a lipstick sample was frozen in liquid nitrogen, then the oil in the lipstick was extracted out in cold isopropanol($-70^{\circ}C$) for 1-3days. After isopropanol was evaporated, the sample was sputtered with gold, and examined by SEM. When examined the sweated sample by SEM, the change of wax matrix underneath the surface from fine, uniform structure to coarse, nonuniform structure was observed, which was resulted from the caking of surrounding wax matrix. That is, the oil underneath the surface was migrated to the surface of lipstick with sweating, consequently the wax matrix at that region was rearranged into the coarse matrix. In case of flamed lipstick, sweating was delayed and the wax matrix was much coarser than that of unflamed one. Its larger wax matrix at surface region was good for including oil. The effect of molding temperature on sweating was also studied. As the molding temperature was increased, sweating was greatly reduced and the size of wax matrix was increased. It was also found that sweating was influenced with the compatinility of wax and oil. A formula consisting of wax and oil which have good compatibility has a tendency of reduced sweating and increased size of wax matrix. When pigment was added to wax and oil. It was also found that sweating was influenced with the passage of time by observing a thick membrane of wax on surface of lipstick after a month from molding. In case of some lipsticks, the size of wax matrix was altered to bigger or smaller. In conclusion, the structure of wax matrix at the surface region of lipstick was changed with the process of foaming, molding temperature, compatibility of wax and oil, addition of pigment, and the passage of time. In most cases, as the size of wax matrix was increased, sweating was reduced and delayed.