• Applied Biological Chemistry
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• v.40 no.6
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• pp.541-545
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• 1997

This study was conducted to investigate the effect of cocoon silk fibroin hydrolyzate(CSFH) on shelf-life extension of kimchi. CSFH was added in kimchi in the concentration of 0.3%(w/w), 0.6% and 0.9%. Kimchi with CSFH showed higher pH and lower titratable acidity than control and it was supposed that the growth of lactic acid bacteria was inhibited by CSFH. In model system, for complex lactic acid bacteria, CSFH showes antimicrobial activity.

• Journal of IKEEE
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• v.25 no.4
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• pp.703-709
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• 2021

As drone technology advances, the risks of drones are increasing, then technology to detect drones is becoming important. In this thesis, it was verified that miniaturized and lightweighted active array antenna could be used for radar system to detect drones in reality. The transmit-receive module was designed in the form of tile-type to simplify interconnections between devices. The waveform generation module and the down conversion module were miniaturized to include in one body too. As a result of verifing the detection performance through test, it was confirmed that the detection range was over 3.7Km.

• Korean Journal of Medicinal Crop Science
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• v.10 no.5
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• pp.344-352
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• 2002

This study was conducted to determine the optimum planting dates and density of one year old Bupleurum falcatum L. to improve its quality. Furthermore, the effect of cultural methods and plant growth regulators$(GA_3,\;IAA,\;Kinetin)$ on the quality of B. falcatum were also investigated. In this study, Jeongseon cultivar collected in Korea and Mishima cultivar introduced from Japan were used. Some of the results obtained are as follows. Jeongseon cultivar showed less stem branches and shoot weight compared to Mishima. However, Jeongseon cultivar showed tall plant height, high root fresh and dry weight, and high levels of SSa and TSS, but low SSc content than that of Mishima. Although fresh and dried root weight of both cultivars were not affected by plant growth regulators treatment. compared with the untreated one, increasement of TSS content were made by $GA_3$ 100 ppm, IAA 50 ppm or 10 ppm and kinetin 10 ppm treatment in Jeongseon cultivar, and by $GA_3$ 10 ppm and IAA 100 ppm or 10ppm treatment in Mishima cultivar applied on June 1.

• KOREAN JOURNAL OF CROP SCIENCE
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• v.36 no.2
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• pp.107-111
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• 1991

This study was conducted to define the effect of 2, 4-D foliar application on the plant growth. photosynthesis ability and ethylene gas production of the ginseng plant. Neither abnomal foliar changes occured nor any inhibition in the leaf and stem growth was resulted for the plants treated with 2,4-D concentrated three times of the recommended dosage. The angle of petiole to the stem became wider by 2, 4-D foliar application. The higher concentration treatment of 2,4-D made the petiole angle significantly wider. Foliar application of the herbicide 2,4-D inhibited photosynthesis of the ginseng leaf. The inhibition rate of photosynthesis was significantly increased with the application concentration of 2, 4-D. Inhibition in photosyn-thesis ability by 2,4-D application with doubled concentration was recovered in three days after treatment. When 2,4-D was treated with a concentration tripled the recommended dosage, 12 days were needed to recover the photosynthesis ability of the ginseng leaf. Ethylene gas was not detected from the ginseng plants treated with 2 times concentrated 2, 4-D. However, the ginseng plants produced 0.03-0.04 ppm ethylene gas when the application rate was increased 3 times. The amount of ethylene gas produced by ginseng plant treated with 3 times concentrated 2, 4-D was only 1/20 compared with the amount produced by the soybean plant treated with the recommended dosage of 2, 4-D.

• Journal of Bio-Environment Control
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• v.12 no.4
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• pp.252-258
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• 2003

This experiment was performed to investigate the effect of UV-B (4 kJ${\cdot}m^{-2}{\cdot}d^{-1}$) irradiation and growth inhibitor (50 mg${\cdot}L^{-1}$ diniconazole, 500 mg${\cdot}L^{-1}$) treatment on the overgrowth retardation and the growth and yield afterplanting in plug-grown cucumber, tomato, and hot pepper sedlings. Stem length of UV-B-irradiated and iniconazole-treated seedlings was shortened by 38 and 35%^ in cucumber, 37 and 41% in tomato, and 23 and 23% in hot pepper, respectively, compared with non-treated seedlings. While retarding effect ofhexaconazole waslower that that of UV-B or diniconazle. Leaf area and dry weight alson decreased but ldaf thickness increased in UV-B irradiated or growth-inhibitor-treated seedlings. Even thouth the plant height and leaf area of UV-B-irradiated seedlings ant seedling stage were shorter and smaller that those ofnon-treatedd seedlings, they were recovered to the similar level to the growth of non-treated seedlings 20to 30days after trasplantin. The diconazole-and hexaconazole-treated seedlings were delayed recovery to their normal growth, Fruit yiedl of UV-V-irradiated hot pepper and tomato slightly increased but UV-B irradiated cucumer had similar yield to growth-inhibitor-treated one. It suggested that the use of UV-B irradiation could become a reliable tool of overgrowth retardation of plug-grown vegetable seedlings in greenhouse.

• TTA Journal
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• s.64
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• pp.55-61
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• 1999

본 고는 표준화 추진시 갈등 문제를 가질 수 있는 지적재산권의 처리와 관련하여 국제 표준화 기구인 ISO(International Organization for Standardization)/IEC(International Electrotechnical Commission)의 지적재산권정책 내용을 분석하여 정리한 것이다. ISO/IEC의 지적재산권정책에 따르면 ISO/IEC의 국제 표준 발행 전$\cdot$후에 특허권과 관련된 조치는 첫째, 아무런 특허권이 관련되어 있지 않은 것으로 주지하고 발행하는 표준에 대한 처리 사항과, 둘째, 표준의 준비 과정 중에 나타나는 관련된 특허권에 대한 처리 절차와, 마지막으로 표준의 발행 후에 관련된 것으로 나타나는 특허권에 대한 대처 등 크게 세 가지로 나누어 분석할 수 있다. 본 고는 이러한 ISO/IEC의 특허권에 대한 처리 지침과 저자권에 대한 처리 규정 그대로 세부 내용을 분석, 소개함으로써 최근에 관심의 대상으로 더욱 부상하고 있는 특허 등 IPR과 표준화에 관한 연구와 관련 활동에 도움을 주고자 한다.

• KOREAN JOURNAL OF PACKAGING SCIENCE & TECHNOLOGY
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• v.27 no.3
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• pp.181-186
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• 2021

The research was aimed to improve pre-harvest methods to maintain marketability in postharvest coniferous lettuce. Non-woven pots or plug plates were used to generate seedlings. No difference was found in growth characteristics of lettuce grown in non-woven pots vs plug plates. Since, seedling method with non-woven pots was convenient, lettuce harvested from non-woven pots used for water dipping treatment. The quality parameters, such as fresh weight loss, SPAD value, and appearance of lettuce were investigated after harvest. The lettuce with dipping treatment inside the plastic box container showed lower weight loss, higher SPAD value and better appearance compared to those exposed to the control (non-packaging) during the storage at 2℃. The treated plant showed higher SPAD and hue angle values 21.9 and 113.8°, respectively, compared to that of 18.8 and 108.3°, in non-treated plants. Therefore, it seems that the water dipping treatment is effective for storage method to maintain freshness of the lettuce. We showed the non-woven pot growing as a convenient seedling method for packaging treatment. Further studies will be continued to improve freshness postharvest of other horticultural crops.

• Korean Journal of Animal Reproduction
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• v.20 no.2
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• pp.127-134
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• 1996

The objective of this experiment was to test the ability of the fertilization of EGF treated pig oocytes for in vitro maturation. The addition of EGF (10 ng/ml), FSH (10 ${\mu}\textrm{g}$/ml), or FBS (10%) on maturation medium of pig immature oocytes divided into four groups as follows; group 1: untreatment, group 2: EGF alone, group 3: combination of FSH and FBS, or group 4: combination of EGF, FSH, and FBS. The interactive effects of nuclear maturation rates (M II%) of EGF alone, FSH plus FBS, and EGF plus FSH added FBS treatments were significantly higher than those of non-treatments (P<0.001). The fertilization rate of EGF alone (group 2) was lower than that of 3, 4 groups, but was significantly higher than group 1 (p< 0.005). Furthermore, combination of EGF, FSH,and FBS (group 4) was higher than others (group 1. 2, 3) on male pronuclei formation as well as penetration of sperm (P<0.05). These results suggested that EGF alone decreased the ability of cytoplasmic maturation compared to nuclear maturation in pig oocytes, but a high level of cytoplasmic maturation of in vitro-matured pig oocytes can be achieved when supplemented with FSH and FBS.

• Korean Journal of Weed Science
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• v.9 no.3
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• pp.221-229
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• 1989

This study is conducted to evaluate the effect of KIM-112 (Ca-3, 5-diode-4-propyonly-cyclohexane-1-carboxylate) application at 13, 8 and 3 days before heading for the possibility of lodging prevention, growing pattern of several organisms, growth and yield in paddy rice. KIM-112 was the most effective in reducing elongation of the third internode when it was applied at 13 days before heading(13DBH) and the second internode when it was applied at 8DBH and 3. KIM-112 gradually inhibited internode elongation of rice with increase in dosage starting from 1.0ga.i./10a. The culm length shortened by 7-17% at 3DBH. The maximum distribution of leaf blade at canopy structure was positioned higher on KIM-112 application than on untreated. Lodging index decreased by 8-47% on KIM-112 application and field lodging degree(0-5) was 5 at untreated but KIM-112 application was only 1.3-2.0 of 3 DBH and was little lodging of 8-13 DBH. Ripened grain ratio of KIM-112 application were higher than those of untreated. Yield increased by 27-37% at KIM-112 application.

• Research in Plant Disease
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• v.11 no.1
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• pp.43-47
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• 2005

To investigate control efficacy of flusulfamide GR (granule) on Chinese cabbage clubroot caused by Plasmodiophora brassicae, experiment was accomplished in field located in Gangneungshi alpine area contaminated by P. brassicae. Flusulfamide GR provided control value of 84.6% and that was statistically significant difference from standard fungicides containing untreated control. To investigate ratio of reduction of resting spore according to fungicide treatment, soil of Chinese cabbage field before and after fungicide treatment were sampled and investigated density of resting spore. Resting spore density was not uniform in soil before fungicide treatment. Therefore, to investigate control efficacy of fungicide against clubroot, investigation on resting spore density was conducted before experiment and reflected in experimental design. Flusulfamide GR and DP (dust powder) provided 64.2% and 63.7% of reduction of resting spore on field soil after fungicide treatments. This result indicated that control efficacy of the fungicides was correlated with reduction of resting spore of P. brassicae. The increasing rate in fresh weight of above-ground part of Chinese cabbage by flusulfamide DP and GR, fluazinam DP and trifloxystrobin SC (suspension concentrate) was 14.3%, 13.0%, 13.8% and 3.8%, respectively. From above result, flusulmide GR have outstanding control efficacy against clubroot of Chinese cabbage and is effectively decreasing of resting spore density in soil.