• KOREAN JOURNAL OF CROP SCIENCE
• /
• v.61 no.4
• /
• pp.227-234
• /
• 2016

In this study, we analyzed seed storage proteins in order to investigate the main factors related to the eating quality of japonica and tongil-type rice varieties. Sensory evaluation was performed by a trained panel to assess the appearance (color and glossiness), flavor, taste, stickiness, texture, and overall score of nine japonica and three tongil-type rice cultivars. Moreover, the pattern of variation in rice storage proteins was examined by electrophoresis of protein extracts. The electrophoretic pattern of rice proteins showed 16.4 kDa albumin, 26.4 kDa globulin, 34-39 kDa and 21-22 kDa glutelin, and 14.3 kDa prolamin. In terms of storage protein, the varietal differences between japonica and tongil-type rice were found in albumin, globulin, and the ${\alpha}-1$, and ${\alpha}-2$ sub-units of acidic glutelin. Furthermore, the overall sensory evaluation score was observed to be positively correlated with albumin ($0.495^{**}$) and globulin ($0.567^{**}$), and negatively correlated with ${\alpha}-1$ glutelin ($-0.612^{**}$). Therefore, the results indicated that albumin, globulin, and ${\alpha}-1$ glutelin can affect the eating quality of japonica and tongil-type rice varieties, with the latter having lower eating quality than the former.

• Journal of Korean Ophthalmic Optics Society
• /
• v.20 no.1
• /
• pp.61-66
• /
• 2015

Purpose: In this study, dynamic stereoacuity of 20s' adults were measured by using the Howard-Dolman test(H-D TEST, Bernell, U.S.A), and compared of male and female. And the correlation between dynamic stereoacuity and PD(pupillary distance), and between dynamic stereoacuity and anisometropia caused by difference in the spherical refractive power of the left and right eyes were analyzed. Methods: The mean age of $22.68{\pm}0.50$(20~29)years old, 20s' 63 adults (30 male, 33 female) were conducted for this experiments. After the full correction of subject's refractive error, dynamic stereoacuity was measured 5 times for 1 subject at 2.5 m distance using the H-D test. at 2.5 distance. Results: The mean of dynamic stereoacuity was $28.44{\pm}25.03$ sec of arc for total subjects, $28.23{\pm}23.34$ sec of arc for male, and $28.63{\pm}26.83$ sec of arc for female. In the dynamic stereoacuity classified by the range of inter-pupil distance (IPD), the dynamic stereoacuity was $33.87{\pm}18.53$ sec for the IPD being under 59.80 mm, $26.24{\pm}25.26$ sec of arc for 59.81~66.15 mm, $34.60{\pm}25.65$ sec of arc for over 66.15 mm. However, there were no significant differences between 3 groups (P=0.73, r=0.03). In dynamic stereoacuity classified by the refractive error difference between two eyes, dynamic stereoacuity was $26.81{\pm}24.86$ sec of arc for the under 1 D, $41.45{\pm}24.18$ sec of arc for over 1 D, and there was no significant difference between two groups (P=0.15, r=0.15). Conclusions: Dynamic stereacuity by the H-D test in 20s adults showed that there was no significant differences between male and female, and PD and anisometropia did not have a significant impact upon the dynamic stereoacuity.

• Food Science and Biotechnology
• /
• v.18 no.4
• /
• pp.959-964
• /
• 2009

Production of the antioxidant substances by Bacillus polyfermenticus SCD was investigated using shake-flask fermentation. The one-factor-at-a-time method was first employed to determine the key ingredients for optimal medium composition, then further investigation of the medium composition was performed using response surface methodology (RSM). The antioxidant activity was measured using 2,2-diphenyl-1-picryl-hydrazyl-hydrate (DPPH) assays. After screening various elements, fructose, tryptone, and $MgSO_4\;7H_2O$ were chosen as the main factors for study in the statistical experimental design. Central composite design (CCD) was then used to determine the optimal concentrations of these 3 components. Under the proposed optimized medium containing 2.8% fructose, 1.34% tryptone, 0.015% $MgSO_4\;7H_2O$), 0.5% NaCl, and 0.25% $K_2HPO_4$, the model predicted an antioxidant activity of 80.5% ($R^2=0.9421$. The actual experimental results were in agreement with the prediction.

• Microbiology and Biotechnology Letters
• /
• v.34 no.4
• /
• pp.363-367
• /
• 2006

Food wastes were decomposed into the Mugri (Isung Engineering, Korea), a food waste reduction machine, with adding sawdust of cryptomeria. Degradation effects were better when the machine worked at over 45$^{\circ}C$ than those at the lower temperature. Thermophilic bacteria were isolated from cryptomeria sawdust and the food waste products degraded by the machine. The isolates from cryptomeria sawdust were classified into 3 genera (Acinetobacter baumannii, Enterobacter sp. and Erwinia cypripedii) and almost all the isolates from the degraded products were partially identified as Bacillus sp. by 16S rDNA sequence analysis. The isolated thermophilic bacteria showed degradative enzyme activities. In the case of addition of the 30 thermophilic bacteria into the machine, degradation rate of food wastes was almost twice as high with increasing process temperature up to 6$^{\circ}C$.

• Polymer(Korea)
• /
• v.34 no.1
• /
• pp.58-62
• /
• 2010

The acrylic monomers were graft-polymerized to starch as matrix polymer by emulsion polymerization. Viscosity and particle size of the emulsion were increased with starch contents due to interaction with water and particle swelling toward the water phase by hydroxy group of starch. Chemical stability of the emulsion was also increased with enhancement of starch, but water and alkali resistance were reduced with increasing starch contents because of the increasement of hyrophilicity. Opacity of the starch-acrylic emulsion compound containing calcium carbonate was decreased with contents of starch by its intrinsic color. The film of starch-acrylic polymer showed more clear appearance with increasing starch contents owing to enhancement of amorphous state.

• The Inventors News
• /
• no.46
• /
• pp.1-16
• /
• 2006

'2006 대한민국 여성 발명품 박람회' 개최/'발명의 달 5월' 행사 풍성히 열려/'제12회 여성발명 우수사례 발표회' 열려/;꽃꽃이 용기' 출원동향 급격히 늘어나/특허청 '소멸특허정보 서비스' 제공한다/김열 특허청 차장 승진 임명/BM 특허 출원, 개인은 줄고 기업은 늘고/5월부터 특허료, 우선심사신청료 인하/현장 스케치/특허청과 한국전력 기술.특허정보 공유 양해각서 체결/독일과 '장미전쟁', 한국 승리/'제34회 제네바 국제발명전'에서 전원 수상 기록/국제 특허 전문가 한 자리에 모였다/특허청, 해외지재권 침해 소송비용 지원/국가연구 개발사업 지원하는 'R&D 특허센터' 출범/'특허 고객 고층 해결 안방 서비스' 개시/한국특허정보원, 다양한 캠페인 통해 사회공헌 활동/특허청, 과학기술 전문인력 50명 특별채용/'특허기술이전 박람회' 개최/취업 위해 일본 기업에 IT특허 기술 유출/부조리 신고자에 포상금 지급/역사 속의 발명품/하루 10분 발명교실/특허Q&A/'주부에서 발명가로, 필요에 의해 발병이 시작됐습니다'/여주초등학교 발명교실/아이디어 착상 및 발명 기법/여성 발명 활동 더욱 장려해야/무리에의 마가린/세계 상표제도 더욱 가까워져/특허청,'아시아 특허정보 허브'로 급부상/'2006 발명 특허 페스티벌' 개최/지리적 명칭, 신문제호 상표등록 안된다/리빙 아이디어/특허기술사업화에 3천89척원 지원/'찾아가는 심사 서비스' 대리인 사무소까지 확대/문화콘텐츠 식별체계 첫 선 보여/한국여성발명협회 회원사 발명품 가이드/

• Journal of the Korean Society of Marine Environment & Safety
• /
• v.24 no.5
• /
• pp.553-568
• /
• 2018

Chromophoric Dissolved Organic Matter (CDOM) plays a dominant role in absorbing UV-VIS light and is also important in the biogeochemical carbon cycle due to the production of carbon dioxide from photo-oxidation at the sea surface in marine environments. Since absorption by CDOM was recently found to be responsible for increasing the energy absorbed in the mixed layer by 40 % over pure seawater, the importance of CDOM absorption in seawater for increasing sea surface temperature has come to be well recognized. We measured aCDOM and the absorption characteristics of CDOM during spring 2012 and 2014 in the southwestern East Sea. Distribution of CDOM in spring 2012 and 2014 was compared and S value was used to find the source of CDOM in the study area. As a result, the average $a_{CDOM}$ was $0.237m^{-1}$ ($0.009{\sim}0.988m^{-1}$) and the average S value was $16{\mu}m^{-1}$,which shows coastal properties. Also a positive correlation between Chl a and CDOM was observed ($r^2=0.34$), with an especially strong correlation near coastal stations. aCDOM in 2014 was about 40 % higher than aCDOM in 2012 during spring in the study area. This difference in aCDOM concentration resulted not only from annual variation but also from stratification and photobleaching in late spring 2012. This observation implies the possibility of flux of carbon dioxide into the atmosphere as a result of photo-oxidation in the East Sea.

• Management & Information Systems Review
• /
• v.34 no.3
• /
• pp.179-196
• /
• 2015

The purpose of this study is to examine the influence of variable cash compensation depending on short-term performances instead of stock compensation for the executives on the investment in tangible assets, investment and R&D, and profit reconciliation. The detailed objectives of the study include, first, to examine the influence of the cash compensation on investment in tangible assets and profit reconciliation depending on the characteristics of the company and, second, to examine the influence of cash compensation on the profit reconciliation of the investment in R&D depending on the characteristics of the company. The results of the analysis in this study can be summarized as follows; Firstly, the result of the positive analysis, as the compensation for the executives increased, by the characteristics of the companies conducted on the significant 'positive' (+) on the investment in R&D and the profits reconciliation showed that the high tech industry and the share ratio of the executives did not show a significant result, while the debt ratio showed a significantly positive result. Secondly, the result of the positive analysis, as the compensation for the executives increased, by the characteristics of the companieson the significant 'positive' (+) of the investment in tangible assets and reconciliation of profits showed that the high-tech industry did not show a significant result, while the hypothesis on the share ratio of the executives and the hypothesis on the debt ratio showed results that are significantly positive as expected. In other words, it can help Korean companies, which have to investment in R&D and tangible assets to increase their competitiveness and promote future growth dynamics, to design a manager compensation system that is appropriate for our country to support efficient investment decision-making.

• Journal of the Society of Cosmetic Scientists of Korea
• /
• v.34 no.1
• /
• pp.57-62
• /
• 2008

No matter how small amount of heavy metals it may be cause skin allergies through percutaneous adsorption when existing in cosmetic products as impurities. In order to develop a highly sensitive method for simultaneous determination of $Pb^{2+},\;Fe^{2+},\;Cu^{2+},\;Ni^{2+},\;Zn^{2+},\;Co^{2+},\;Cd^{2+},\;and\;Mn^{2+}$ in coloring agents and cosmetic products with rapidity and accuracy, we carried out the determination on ion chromatography. All of these metals are well separated through a bifunctional ion-exchange column(IonPac CS5A) and detected by post-column reaction and spectrophotometric detection. The calibration graphs are linear($r^2>0.999$) in the range $0.1{\sim}1000{\mu}g/mL$. Detection limits for 200 ${\mu}L$ of sample solution are at the level of ${\mu}g/L$, which is sufficient for judging whether the product is safe or not. The relative standard deviations(RSDs) of the retention time and the peak area are less than 0.21 and 1.24%, respectively. The recovery rates are $97{\sim}104%$. The new method was applied to analyze the amount of heavy metals which were contained in 22 cosmetic products and 11 coloring agents.

• Journal of the Korea Convergence Society
• /
• v.9 no.2
• /
• pp.43-50
• /
• 2018

Purpose: The purpose of this study is to examine the relationships between self efficacy and health behavior of elderly woman with chronic low back pain. Methods: A descriptive correlational design was used and the participants were 130 eldery women patients with chronic low back pain from one general hospital in 2012. The structured questionnaire included Perceived Self Efficacy Scale, Health Behavior Assessment tool of the Korean Elders. Data analysis included t-test, ANOVA and Pearson's correlation. Results: The mean scores were $67.34{\pm}18.32$ for self efficacy, $99.70{\pm}14.46$ for health behavior. There were significant correlations between self efficacy and health behavior(r=.80). Conclusion: The findings suggest that elderly woman with chronic low back pain need nursing interventions to improve health behaviors by promoting self efficacy.