• 한국노년학
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• v.30 no.4
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• pp.1179-1195
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• 2010

In this study, we investigated the effects of ego integrity on QoL(Quality of Life) of elderly living alone, where we focused on moderating role of SF36 health factors. To investigate the cause and effect of factors, we purposively collected 282 samples from senior welfare centers in Jeonju city and exploited reliability analysis, confirmatory factor analysis and SEM(Structural Equation Modeling) for 265 cases excluding some cases with missing values. As the results, first, we confirmed ego integrity was positive predictor of QoL. Second, it was proven that the effect of ego integrity on QoL of elderly living alone was stronger in the lower physical functioning group than higher physical functioning group. Third, we also verified that the group with more difficulties in activities or work as a result of poor physical health showed higher effect of ego integrity on QoL. Based on the results, we could explain the reason of conflicts regarding how elderly's health influenced on ego integrity. Also, in the practice of intervention to elderly's problem, we found the health factors could be an indicator of direction or effect of the intervention

• Proceedings of the Korean Society of Developmental Biology Conference
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• 2003.10a
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• pp.117-117
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• 2003

체외에서 한우 난포란의 감수분열과 배발달 능력의 획득에는 단백질 합성이 수반되어야 한다. 그러나 이러한 변화와 관련된 연구 보고는 거의 전무한 실정이다. 본 실험은 난자의 핵성숙과 관련된 세포질내 단백질 변화를 파악하기 위하여, 체외성숙 시간에 다른 배발달율과 세포질내 단백질을 비교하여 배발달능력 획득과 관련 있는 단백질을 규명하고자 실시하였다. 한우 난소에서 2-8mm의 가시난포로부터 난포란을 회수하였다. 회수된 난포란은 10% FBS와 호르몬이 첨가된 TCM199 용액에서 18시간 또는 24시간 체외성숙을 실시하였다. 난자 세포질내 단백질 변화는 2D gel electrophoresis를 이용하였고, 유의적인 변화를 나타낸 spot은 peptide mass fingerprinting을 통하여 단백질 동정을 실시하였다. 체외수정은 fer-TALP 용액을, 체외배양은 CR1aa 용액을 배양 3일째까지는 0.3% BSA, 그 이후에는 10% FBS와 난관상피세포를 첨가하여 사용하였다. 통계분석은 t-test를 이용하였다. 난자의 세포질에 대한 이차원전기영동 결과 29개의 단백질 spot들을 확인하였다. 한편 체외성숙 18시간째에 PB가 출현된 난자는 PB가 출현되지 않은 난자에 비하여 15개의 spot에서 유의적인 변화를 나타냈다. 이들 중 4개의 단백질 spot은 낮았고, 11개 spot의 수준은 높은 경향이었다. 체외성숙 18시간째와 24시간째의 배발달율을 조사한 결과 18시간째에서 유의적으로 높은 배반포 발달율을 나타냈다. 그리고 체외성숙 18시간과 24시간째 난자의 세포질내 단백질 spot들의 변화를 비교한 결과 PB가 출현된 난자 세포질에서 단백질의 변화와 유사한 경향이었다. 그러나 2개의 단백질 spot은 상반된 경향을 나타냈다. 따라서 본 실험에서 난자의 핵성숙과 관련 있는 15개의 spot을 확인하였고, 이들 단백질 spot중에서 2개가 배발달 능력과 관련이 있을 것으로 사료된다.보다는 육질등급에 많은 영향을 받는 것으로 판단된다. 한편 육질 1등급에서 배발달율이 낮은 이유는 육질 향상을 목적으로 암소를 비육 하는 경우 발생하는 번식장애와 밀접한 관계가 있는 것으로 사료된다.각각 가장 높았다. 배양 8일째 배반포의 세포수에 있어서 총세포수와 TE 세포수는 차이가 없었으나, ICM 세포수가 l0mg 첨가군에서 가장 높았다. 본 실험 결과에서 체외성숙 배지에 NEAA와 EAA 첨가가 배발달율에는 효과가 없었지만, 첨가농도의 증가에 따라 ICM 세포수가 증가하였다. 한편 체외성숙 배지에 LAH 첨가는 첨가 농도가 높을수록 배발달율은 낮았지만 ICM 세포수는 증가하였다.에 Csk가 관여하고 있음을 알 수 있다. 결론적으로 성적 성숙에 따른 생쥐 정소 내 Src-Csk loop의 발현과 Src kinase 활성의 변동은 정소 내 간충조직, 세정관 상피의 증식 및 기능적 분화 과정을 매개하는 생리적 활성분자 수용체 하위의 신호전달 과정에 Src-Csk loop에 의한 조절가능성을 확인할 수 있었다.rugrene의 향기성분이 주요 성분군으로 확인되었다. 2. 생강나무에서 생강의 향기를 발산하는 성분으로는 $\beta$-myrcene, o-terpinolene, phellandrone, ι-limonene, $\beta$-eudesmol, $\delta$-cadinone, elemol, trans-caryophyllene으로 동정되었으며 그 중에서도 phellandrene, $\beta$-eudesmol이 주된 역할을 하는 성분으로 확인하였다. 유의적인 관련성이 나타났고, 복부 비만의 지표인 허리엉덩이둘레비는 GPT, alkaline phosphatase, 공복시 혈당 및 MCV 등 다양한 건강지표와 관련성을 나타내어 향후 비만에 있어 다양한 혈액 성상의 변화 및 역할규명에 대한 연구가 이루어져야 할 것으로 본다.hat

• Transactions of the Korean Society of Mechanical Engineers B
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• v.40 no.9
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• pp.557-567
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• 2016

In this study, the optimal design of heat exchangers, including the evaporator and condenser of a solar-heating ocean thermal energy conversion (SH-OTEC), is investigated. The power output of the SH-OTEC is assumed to be 100 kW, and the SH-OTEC uses the working fluid of R134a and high-performance commercial tubes. The surface heat transfer area and the pressure drop were strongly dependent on the number of tubes, as well as the number of tube passes. To solve the reciprocal tendency between the heat transfer area and pressure drop with respect to the number of tubes, as well as the number of tube passes, a genetic algorithm (GA) with two objective functions of the heat transfer area (the capital cost) and operating cost (pressure drop) was used. Optimal results delineated the feasible regions of heat transfer area and operating cost with respect to the pertinent number of tubes and tube passes. Pareto fronts of the evaporator and condenser obtained from multi-objective GA provides designers or investors with a wide range of optimal solutions so that they can select projects suitable for their financial resources. In addition, the surface heat transfer area of the condenser took up a much higher percentage of the total heat transfer area of the SH-OTEC than that of the evaporator.

• Science of Emotion and Sensibility
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• v.13 no.1
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• pp.147-162
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• 2010

This study investigates how framing and the interaction with involvement influences responses toward a help campaign. There could be two possible predictions about the results of framing. One is that, because helping is a risk avoidance behaviors, the positive framing would dominant or the other is that, because helping is mainly mediated by negative emotions such as sadness or guilty, the negative framing would be preferred. The present research was to solve the conflicting predictions and was conducted with a experimental design. The participants were exposed to a campaign emphasizing either positive aspects of the help or negative contexts which would be maintained without any help. The results were that the main effect of framing was not existent, but the significant interaction with involvement on responses was found. The interaction of framing and involvement, though, included unexpected inconsistency between the results of attitude and behavioral intention. The theoretical and practical meanings of the results were discussed.

• The Journal of Korean Institute of Electromagnetic Engineering and Science
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• v.29 no.4
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• pp.247-255
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• 2018

In this work, glucose solution and sodium chloride solution were distinguished noninvasively using a microwave complementary split-ring resonator (CSRR). Based on the electrical properties of the two solutions measured using a open-ended coaxial probe, a CSRR was designed and fabricated for operation at a specific frequency that facilitates differentiating the two solutions. Furthermore, a polydimethylsiloxane mold was fabricated to concentrate the solution at a region where the electric field of the resonator was strongest, and a laminating film was used to prevent contact between the solution and resonator. Experiments were performed by dropping $50{\mu}L$ of the solution in steps of 100 mg/dL up to a maximum human blood glucose level of 400 mg/dL. Our experiments confirmed that the transmission coefficients ($S_{21}$) of glucose solution and sodium chloride solution exhibit variations of -0.06 dB and 0.14 dB, respectively, per 100 mg/dL concentration change at the resonance frequency. Thus, the opposite trends in the variation of $S_{21}$ with change in the concentration of the two solutions can be used to distinguish between them.

• Journal of the Korean Society of Food Science and Nutrition
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• v.44 no.7
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• pp.1041-1049
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• 2015

The purpose of this study was to investigate the quality characteristics of mulberry extracts added with Omija (Schisandra chinensis Baillon) in order to determine the best conditions to enhance sour taste of mulberry extracts during manufacturing. The total acidity of Omija was 5.71%, which was 20 times that of mulberry; sour taste of mulberry extracts could be enhanced by adding Omija during the extraction period. Overall, we observed reduction of pH and soluble solid contents as well as increased total acidity and anthocyanin content with a higher Omija adding ratio. In terms of taste acceptability, which is the most important parameter of beverage development, OC-3 (added with 18.75% Omija) and OC-4 (added with 25% Omija) values were $4.20{\pm}0.75$ and $4.05{\pm}0.80$, respectively, for mulberry extracts with Omija. This result was significantly different (P<0.05) from the control group (without Omija addition), which showed an OC-3/OC-4 value of $2.30{\pm}1.24$. The results of this study indicate that Omija addition at a ratio of 18.75~25% and extraction period of 10~12 days are optimum conditions to improve sour taste when developing mulberry extracts.

• Korean Journal of Plant Taxonomy
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• v.41 no.4
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• pp.329-337
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• 2011

The Acer wilsonii complex including A. wilsonii, A. tutcheri, and A. confertifoilum is distributed in southern China. Morphological variation was examined to delimit the species and to determine whether recognition at the specific level was warranted. Univariate and bivariate statistical methods, based on data taken from herbarium specimens, were used to examine morphological variation between and within species. This study showed that A. tutcheri differed from A. wilsonii by its rather short inflorescence, small leaf blades, and three leaf lobes with distinctive serrate leaf lobes. In contrast, there was virtually no separation of taxa with respect to the paniculate-corymbose or short paniculate inflorescence between A. confertifolium and A. tutcheri, suggesting that A. confertifolium morphologically resembled A. tutcheri and is a rather smaller form of it. Circumscription of Acer wilsonii has been quite troublesome, because the important holotype and isotype specimens contained different species under the same number and were misleading with respect to the correct application of the name. Furthermore, lobation is very weak within ser. Sinensia, but diversified inflorescences usually occur in China. A three lobed leaves species, A. wilsonii, represents the reduction in lobation without any modification of panicle inflorescences and seems to be closely related to A. sinense. However, A. tutcheri, which shows a reduction in panicle inflorescence with four petals and sepals, may not be closely related to A. sinense. Three lobed taxa may not correctly reflect the true relationship within ser. Sinensia. The designated lectotype of A. wilsonii, line drawings of representative leaves of related species, a key, and distribution maps of these taxa are presented.

• Journal of Korean Society of Forest Science
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• v.1 no.1
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• pp.12-21
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• 1962

Outdoor cuttings studies on two coniferous species, pitch pine and needle fir, have been made at Suwon, Korea extending from March to early May, 1956. The purpose of these studies was to find the effects of ages of parent trees, topophysis, dilute hormone solution treatments and the time at which the cuttings were collected on the rooting response of the cuttings. On September 2, rooting results were examined. Pitch Pine (Pinus rigida) The total of 1335 cuttings were collected from 3- and 10-year old trees. The cuttings treated were planted on March 13 and April 20. 1. In the cuttings collected from 3-year-old seedlings, the best result (34 percent rooted) was obtained by treating ends of cuttings with a mixture of 50 ppm IBA and 50 ppm NAA. 2. No rooting was observed in lammas shoots. 3. The cuttings from 3-year-old seedlings gave better rooting than those from 10-year-old trees. 4. The root origins were developed from the lower part of the cutting and the cut surface. Needle fir (Abies holophylla) One hundred twenty-five cuttings were collected from a 30-year-old tree. The cuttings treated with any one of four mixed hormone solutions were planted on March 23. 1. Fifteen cuttings out of 75 cuttings from the lower half of the crown were rooted. The cuttings obtained from the upper half of the crown did not root at all. 2. The cuttings treated by the hormone solution made up of 20 ppm IAA, 20 ppm IBA, 20 ppm NAA, 20 ppm thiamine and 5 percent sucrose gave the best rooting (22 percent). 3. All roots originated from callus tissues and irregularly arranged parenchymatous tissues near the cut base.

• KOREAN JOURNAL OF CROP SCIENCE
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• v.32 no.1
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• pp.24-33
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• 1987

Competitive ability and response of grain yield in a mixed cropping of two cultivars having different agronomic traits were evaluated at the Yeongnam Crop Experiment Station in 1984 and 1985. Competitive ability was higher in Indica x Japonica cultivar, Milyang 23, and tall statured cultivar, Samgang-byeo, than in Japonica type cultivar, Nacdongbyeo, short statured type cultivar, Taebaegbyeo, respectively. Compared to pure stand, more grain yield was recorded when mixture rates were over 50% in a seed volume for the mixing rate of high yielding cultivar in two cultivars, but low compared to pure cultivation of the cul-tivar having the higher yielding ability in two cultivars.

• Korean Journal of Soil Science and Fertilizer
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• v.22 no.3
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• pp.180-190
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• 1989

In order to obtain basic information on soil inprovement and management of two reclaimed paddy soils, Munpo and Pori series, this study was carried out by investigating the change of physico-chemical and soil mechanical properties. 1. In the Munpo series, the contents of salt in the soil and ground water before paddy rice transplanting at 6 years after reclamation were 0.60 and 1.84%, respectively, and the safty cultivation of paddy rice was possible after 20 years, while that of the Pori series was after 12 years. 2. In the Munpo series, the change of the soil particle size according to the ages after reclamation showed negative correlation with sandy contents, but clay contents had positive correlation both in the surface and subsurface soils. The pori series showed reverse tendency. 3. Between the N-value and Atterberg limits and the ages showed negative correlation in both Munpo and Pori series, but clay-activity showed positive. Arid the cole values showed positive correlation in the Munpo series, but negative in the Pori series. 4. Cone penetrating resistance in the surface of the Munpo series after 6 years of reclamation was 62.9, after 20 years 24.5 and $16.7kg/cm^2$ in 15cm of soil depth at depth of 22.5cm after 27 years. In the Pori series, it was $3kg/cm^2$ at 15-20cm of soil depth after 12 years and it used after being creation of hard pan layer after 23 years. 5. Change of the clay minerals by the different year after accomplishment of tidal reclamation did not show. The major clay minerals were illite and kaolinite, and accessory clay minerals were montmorillonite and vermiculite in both Munpo and Pori series.