• 대한지리학회:학술대회논문집
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• 대한지리학회 2003년도 춘계학술대회
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• pp.75-78
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• 2003

A recent rise in mean global temperatures suggests a shift in the temporal cycles of natural seasons. The impacts of warming trends can alter the temporal and spatial distribution of flora and fauna. Especially, phenological cycles are very sensitive to the occurrence of alternation of hot and cold seasons. Phenological calendars reflect the natural seasonality. In more detail, phenological cycles affects agriculture and human health (i.e. the amount of fruit production and allergies), as well as tourism industries like flower fairs or festivals. (omitted)

• 한국재료학회:학술대회논문집
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• 한국재료학회 2010년도 춘계학술발표대회
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• pp.31.1-31.1
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• 2010

Various ZnO nanostructures were synthesized and ZnO nanostructure-based self-assembled transistors were fabricated. Compared to spindle and flower like nanostructure, the ZnO nanorod (NR) structure showed much stronger gate controllability, and greatly enhanced device performance, demonstrating that this structural variation leads to significant differences of the nanostructure network-based device performance. Also, patterned dry transfer-printing technique that can generate monolayer-like percolating networks of ZnO NRs has been developed. The method exploits the contact area difference between NR-NR and NR-substrate, rather than elaborate tailoring of surface chemistry or energetic. The devices prepared by the transferring method exhibited on/off current ratio, and mobility of ${\sim}2.7{\times}10^4$ and ${\sim}1.03\;cm^2/V{\cdot}s$, respectively. Also, they exhibited showing lower off-current and stronger gate controllability due to defined-channel between electrodes and monolayer-like network channel configuration. With multilayer stacks of nanostructures on stamp, the monolayer-like printing can be repeated many times, possibly on large area substrate, due to self-regulating printing characteristics. The method may enable high-performance macroelectronics with materials that have high aspect ratio.

• 셀메드
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• 제13권2호
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• pp.2.1-2.9
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• 2023

CPS219, a new concept compound composed of coffee (CO), Pueraria Tomsonii flower (PF), and Sambou bamboo salt^TM (BS), was developed as a coffee beverage to alleviate menopausal symptoms. The purpose of this study is to evaluate the anti-oxidant and menopausal alleviating effects of CPS219 combined as the optimal ratio of each component selected through sensory evaluation and blind consumer test. For CPS219, the optimal ratio of CO, PF, and BS was determined to be 1:0.1:0.017 through various sensory evaluations and blind consumer tests. CPS219 significantly enhanced the superoxide dismutase-like activity compared to the CO or CO plus PF (CP). The proliferation of MCF-7 cells was considerably increased after 24 hours by treatment with CO, CP, or CPS219, but only CPS219 significantly boosted the proliferation of MCF-7 cells after 48 hours. Moreover, CPS219 had an estrogen-like effect by dramatically increasing the expression of estrogen receptor-β mRNA in MCF-7 cells but not CO and CP. Treatment of MCF-7 cells with CO, CP, or CPS219 did not cause any cytotoxicity. In conclusion, these findings imply that anti-oxidant and estrogen-like properties of CPS219 can be used to prevent and cure postmenopausal symptoms.

• 한국자원식물학회지
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• 제19권3호
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• pp.440-446
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• 2006

To investigate flowering related genes in winter-type oilseed rape (Brassica napus L. cv. Tammi), differentially expressed genes were isolated from leaves of the plant after low temperature treatment which is requirements for floral induction. As a result of suppression subtractive hybridization (SSH), 288 clones were randomly selected from SSH library. Using reverse Northern blot analysis, 150 of 288 clones were identified to be differentially expressed. Out of these 150 clones, 45 clones showed very high identities with the known genes. Four clones showed very high identities over 90% with metallothionein-like gene that is related to flowering-induced genes. Of these 4 clones, the cDNA clone, rfs-13, revealed high identity with meotallothionein-like protein in Arabidopsis thaliana (98%) and Brassica compestris (89%). Furthermore, gene expressed in immature flower stages was confirmed by Northern blot analysis.

• 한국세라믹학회지
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• 제53권6호
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• pp.647-651
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• 2016

SiC films were prepared on glassy carbon substrates by laser chemical vapor deposition under a high pressure of $10^4Pa$ using a diode laser (wavelength = 808 nm) and a polysilaethylene precursor. (111)-oriented SiC films were formed at a deposition temperature ($T_{dep}$) range of 1150 - 1422 K. At $T_{dep}=1262K$, the SiC film with a high Lotgering factor of above 0.96 showed an exhibited pyramid-like surface morphology and flower-like grains. The highest deposition rate ($R_{dep}$) was $220{\mu}m\;h^{-1}$ at $T_{dep}=1262K$.

• 한국분말야금학회:학술대회논문집
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• 한국분말야금학회 2006년도 Extended Abstracts of 2006 POWDER METALLURGY World Congress Part 1
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• pp.509-510
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• 2006

Correlations between in-flight particle, splat and coating microstructure of thermally sprayed Ni20Cr were investigated. Flame spray and arc spray systems were employed for spraying Ni20Cr powder and Ni20Cr wire, respectively. The results showed that the arc spray process produced a broader size distribution for both in-flight particles and splats compared to flame process. Flower-like splat morphology was obtained from the arc spray whereas a pancake-like splat was obtained by flame spray. Ni20Cr coating sprayed by arc process had a denser microstructure, lower porosity and better adhesion at the interface.

• 한국HCI학회:학술대회논문집
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• 한국HCI학회 2008년도 학술대회 1부
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• pp.168-173
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• 2008

양질의 교육 콘텐츠에 대한 중요성이 부각됨에 따라 기존의 정적이며 수동적인 형태의 교육 콘텐츠에서 벗어나 능동적 놀이 체험식 교육 콘텐츠를 제공하기 위한 에듀테인먼트 시스템에 대한 필요성이 급증하고 있다. 본 논문에서는 사용자로 하여금 모바일 장치를 통하여 증강된 교육 에이전트와 함께 원예를 체험해 볼 수 있도록 하는 증강 원예 체험 시스템(AR Gardening)을 소개한다. 이는 물리적 책에 부착된 마커 위에 상호작용이 가능한 가상의 원예 환경을 증강시키고 사용자로 하여금 원예에 대한 환경적 요소에 대한 효과를 체험해 볼 수 있도록 한다. 그리고 증강된 에이전트는 사용자의 상호작용 및 증강 원예 환경의 상태를 인지하고 의인화된 표현을 통하여 사용자에게 학습 동료와 같은 반응을 제공한다. 더 나아가 제안한 시스템의 효용성을 살펴보기 위하여 구현한 시스템을 전시하고 참여자들의 반응을 살펴보았다. 참여자들의 반응을 통하여 학습 동료와 같은 상호작용형 증강 에이전트를 제공함으로써, 시스템에 대한 사용자의 참여 동기를 유발시키는 데 긍정적인 효과를 제공할 수 있음을 확인할 수 있었다. 이를 통해 에듀테인먼트 시스템에서 사용자에게 시스템에 대한 흥미를 향상시키고 참여 동기를 유발시키기 위한 필수 요소로서 학습 동료와 같은 증강 에이전트의 필요성을 언급하고자 한다.

• 한국정보통신학회:학술대회논문집
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• 한국정보통신학회 2014년도 추계학술대회
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• pp.985-988
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• 2014

본 연구에서는 망초의 생리활성 효과를 탐색하기 위하여 에탄올 추출물에서의 항산화 활성을 측정하였다. 총 플라보노이드 함량은 잎 추출물이 42.19 mg/g으로 다른 부위 추출물보다 높았으며, 총 폴리페놀 함량은 꽃 추출물이 74.26 mg/g으로 가장 높은 것으로 나타났다. DPPH radical 소거활성은 1 mg/mL의 농도에서 잎, 꽃, 전초 그리고 뿌리 추출물에서 각각 91.75%, 86.95%, 83.95% 및 83.43%로 높은 활성을 나타내었으며 농도 의존적으로 활성이 증가하는 것으로 나타났다. SOD 유사활성은 1.0 mg/mL의 농도에서 부위별 추출물이 7.91~13.54%를 나타내었으며 꽃 추출물의 활성이 가장 높은 것으로 나타났다. 이상의 결과로 미루어 볼 때 망초의 부위별 에탄올 추출물이 우수한 생리활성 효과를 나타냄으로서 이를 이용한 기능성 식품소재로의 활용이 가능할 것으로 생각된다.

• 복식
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• 제63권7호
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• pp.49-64
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• 2013

Mugunghwa, one of the most prominent national symbols of Korea, is a significant design source for producing cultural products. However, there has been a limitation to reflecting the identity of Korea using the design due to a lack of study and analysis of characteristics of Mugunghwa in history. Therefore, the researchers analyzed the design characteristics of Mugunghwa in cultural artifacts such as costumes, money, and stamps. Based on this, the study puts forward the following suggestions. First, the patterns of Mugunghwa should be categorized as a solo figure, a flower with pastels and the stem and a group of flowers as a unit. Second, there are two ways of expressing the flower: using realism and abstraction. Mugunghwa comprises of five pastels with elongated depth in the middle. The pastels spread out like the spokes of a wheel from the center; leaving a feeling of unevenness and the rims of the pastels are shaped in waves. The study puts forward the following suggestion: First, find the prototypes for different design characteristics. Second, develop motifs and patterns that reflect the given prototypes. Finally, apply the design to most popular cultural items such as T-shirts, neckties and bags. The ultimate purpose of the study lies with the hope that it will contribute to promoting the Korean beauty throughout the world.

• KSBB Journal
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• 제26권2호
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• pp.165-171
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• 2011

Fractional solvent extraction by organic solvents such as hexane, chloroform, ethylacetate, and butanol was carried out using 70% ethanol extract of apple flower leaves. Biological activities including antioxidant, whitening, antimicrobial and anti-wrinkle activities were investigated and bio-active materials of the extracts were identified using GC/MSD. Among the tested solvent fractions, ethylacetate fraction showed the highest total polyphenol content (1218.94 ${\mu}g/mL$), and flavonoid (140 ${\mu}g/mL$). The DPPH radical scavenging activities was over 80% at a dry matterbased concentration of 200 ${\mu}g/{\mu}L$ and SOD-like activity was over 90% at 50 ${\mu}g/mL$ concentration in ethylacetate fraction that was slightly lower than of ascorbic aicd. Tyrosinase inhibition activity related to skin-whitening was over 60% by ethylacetate fraction of 100 ${\mu}g/mL$. As an anti-aging effect, elastase inhibitory activity was about 45% in ethylacetate fraction. Also, it showed a significantly antimicrobial activity against P. acenes. From GC/MSD analysis, a characteristic peak of high content in ethylacetate fraction was identified as kaempferol, which has been reported as a bioactive compound.