• Fire Science and Engineering
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• v.22 no.4
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• pp.54-60
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• 2008

In this study, damage characteristics of MCCB and terminal block due to poor contact were analyzed, and various poor contact detection techniques were suggested. Firstly, the detection techniques using thermocouple and infrared thermal camera were analyzed respectively. Also, thermo-cap during poor contact detected abnormal status effectively by changing its color, and the detection system using an odor detector and odor capsules was analyzed. Lastly, poor contact detection screw was made using characteristics of fusible alloy, and we applied the poor contact detection screw to terminal block. The above methods could prevent electrical fire caused by poor contact effectively if they are used properly.

• Proceedings of the Korean Society of Crop Science Conference
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• 2017.06a
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• pp.281-281
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• 2017

Recently, global warming by greenhouse gas effect is getting danger and danger for human life and agriculture at present. In Indonesia, according to heavy rain in the agriculture land is often covered by excess water in result crop growth would be affected negative. This water stress triggers roots failure in anaerobic condition for upland crop because of limiting roots respiration. Chili pepper grows in upland sometimes in touch with waterlogging due to rainfall and /or over flow water from river in Indonesia. In this case, roots growing is inhibited by effect of shortage of oxygen at root cap. Therefore, the objective of this study is to observe the plant behavior in waterlogging using mahor local genotypes (Ferosa, Laris, Romario) in Sumatra. The experiment was kept by at 1cm depth water above the soil surface as a waterlogged treatment for ---days. As a result, waterlogging affected plant growth of chili negatively, especially for roots growth. Almost roots were getting bad and changed color for brown during waterlogging. A significant negative effect for nutrient absorption by roots was found in dry weight of all varieties during waterlogging. Dry weight of roots was decreased by 81.4% and 67.6%, and those of aerial part decreased by 74% and 67.2% compared with control in Ferosa and Romario at 1week after treatment. On the other hand, dry weight of roots was decreased only 35% in Laris. Therefore, Laris has a tolerance for waterlogging compared to with other varieties. Also, Laris in SPAD value was kept initial level during waterlogging however those of Ferosa and Romario decreased. Finally, due to impact of waterlogging, it may be the roots become failure because of less aerenchyma formation under anaerobic condition. We need confirm aerenchyma formation morphologically in the future.

• Journal of Mushroom
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• v.13 no.3
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• pp.237-242
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• 2015

A new brown button mushroom cultivar, 'Hogam', C34 line, was made by crossing homokaryons, ASI1164-37 and ASI1175-66, selected by RAPD analysis and by cultivating three times. Mycelium of 'Hogam' on CDA (compost dextrose agar) media grew well at $25^{\circ}C$. The optimum pin-heading temperature of new variety and optimum growing temperature was $14-18^{\circ}C$. The thickness of the mature cap and stipe were thicker than a control, 'Dahyang' that developed in 2010. The color of pileus was light brown and lighter than 'Dahyang'. Days required from casing to first harvesting were three days longer than control strain, but the weight of harvested fruiting body increased by 1.35 times. 'Hogam' cultivar are expected to contribute to the diversification of domestic mushroom cultivars.

• Journal of Mushroom
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• v.11 no.4
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• pp.226-229
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• 2013

This study was carried out to elucidate suitable wavelength of light during development of fruit body in Lentinula edodes. The four colors of LED(Light Emitting Diode), blue, green, red and yellow, were irradiated for formation of fruit-body. The effect of color of LED at all growth stage, the lightness of cap showed darker in blue and green LED irradiation than that of red and yellow LED. The longer stipe were resulted in longer wavelength. And the activity of anti-oxidant did not showed big differences according to LED wavelength. We obtained higher commercial yields and lower ratio of abnormal fruit body in green LED than those in control(fluorescent lamp).

• Journal of the korean academy of Pediatric Dentistry
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• v.25 no.3
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• pp.539-544
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• 1998

Thermoformed appliance, which has been recently introduced for dental usage, is an appliance made of thermoformed sheets and formed with positive or negative pressure under heat. Thermoplastic material is a kind of plastics and can be repeatedly softened by heat. It is classified into hard elastic foil, hard/soft compound foil and soft elastic foil, including BIOPLAST, BIOCRYL, IMPRELON, etc. It has been developed in 1969 and is available in various thickness, shape and color. There are two types of Vacuum former for thermoplastic materials; the pressure type and suction type. The former is much better than the latter for fabrication of various appliances due to its higher pressure. The authors have applied these appliances to some cases - chin cap, active retainer, individual Fluoride tray, mouth protector, bracket transfer mask, bruxism splint(night guard), Essix appliance - by pressure type Vacuum former($Biostar^{(R)}$). The thermoplastic appliances have numerous advantages such as simple procedure, short working time, clean and transparent product, less objectionable taste. But its outstanding advantage would be its excellent biocompatibility bacause it has no monomer and hence no tissue irritation. Although there is some limitations in its usage, it can be used widely for various purposes especaily for pediatric dentistry.

• Plant Resources
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• v.3 no.2
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• pp.105-109
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• 2000

This study was carried out to find a useful mushroom at Chungnam Agricultural Research And Extention Service. Twenty materials used were collected from domestic and exotic area. These races were compared bontanical characteristics to leading varieties by PCR-RAPD methods. Mycelial growth temperature of Chongpung and Myongwol were at 20 to 25 $^{\circ}C$ and 25 to 30 $^{\circ}C$ at PDA medium, respectively mycelial growth of these varieties were similiar at pH 6.5 to 7.5. In case of mushroom cultivation temperature ranges, Chongpung was at 5 to 26$^{\circ}C$ and Myongwol was at 7 to 28$^{\circ}C$, but the optimum temperature range of these were appeared at 15 to 19$^{\circ}C$. Culture temperature of these was 23$^{\circ}C$ and period of mycelial culture was needed 23 to 24 days under 850cc/pp, while was needed 11 to 12 days at waste cotton medium. Cap color of these at first inducing mushroom was all dark blue, but at late growing stages Chongpung was shown as grey, and Myongwol was shown as dark grey. Yield of Chongpung was appeared as 46kg/3.3$m^2$ and that of Myongwol was 41kg /3.3$m^2$, while Chunchu No2 as check was 40kg/3.3$m^2$. Results from PDA medium and PCR-RAPD analysis two of these were different from others.

• Journal of Fashion Business
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• v.17 no.2
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• pp.46-62
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• 2013

This thesis aims to provide basic resources for the development of various uniform designs of cheerleaders by investigating the currently favoured uniform designs. The 13 professional cheerleader teams were existed among the 25 professional sports teams-9 baseball, 10 basketball and 6 volleyball teams. In each sports teams, four cheerleader's uniform were chosen and evaluated in terms of the cheerleader uniform design by analyzing the forms, colors, decorations and accessories. The result shows that the common kinds of design representing the symbolic color and the emblem were generally prevalent, instead of particular types of uniform design and subject in accordance with different kinds of the professional baseball, basketball and volleyball respectively. Throughout all the kinds of the sports, the combination of the sleeveless top and hot-pants were most frequently observed. In case of the skirts, the mini flare, wrap, and pleats skirts were the most prevalent, because it gave free to motion for cheerleading. The one-piece style were rather infrequent, comparing with the two-pieces, with the hourglass and fitted silhouette the most frequent type, and all those were mini in length. The sleeve in top were generally absent or short, however the bare top style was never found that the top would have a risk of being taken off downwardly during cheerleading. The accessories and the cheering tools were not so much used. The cap and headdresses were not many in kinds. The pompom, megaphone, tube stick, towel, umbrella and musical instruments would not be sufficient to play a role of tools for cheering, which suggests that the rather advanced tools or instruments for cheering in the sports need to be developed, not alone the uniform design.

• Journal of Mushroom
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• v.6 no.1
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• pp.13-19
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• 2008

This experiment was carried out to examine physiological and cultural characteristics of two strains ASI 19003, 'Poplar field-cap mushroom' Agrocybe cylindracea, and ASI 19016, 'Chaxingo' A. chaxingu, at the bottle cultivation which have very similar morphological characteristics in genus Agrocybe. There was significant difference between the physiological and cultural characteristics of ASI19003 and ASI19016. The optimal temperature for the hyphal growth was $28^{\circ}C$ in the strain ASI19003 and $30^{\circ}C$ in ASI19016. The optimal pH was not different in two strains and these strains grew well at pH 5.5~7.0. But the optimal pH in the submerged culture was 5.5 in ASI19003 and 5.0 in ASI19016. Especially, hyphal growth of the strain ASI19016 was very poor at pH 6.0~7.3. The optimal carbon source for the growth was lactose in the strain ASI19003 and fructose in ASI19016, and nitrate sources were asparagine, alanine, and glycine in the strain ASI19003, and ammonium tartrate, asparagine, glycine, and alanine in ASI19016, respectively. The periods of incubation and fruiting body formation in the bottle cultivation during the spring were 27 and 13 days in the strain ASI19003, 29 and 17 days in ASI19016. The yields of fruit body were 114 g per bottle (850 $m{\ell}$ volume) in the strain ASI19003 and 100 g in ASI19016. In the summer, the periods of hyphal incubation and fruiting body formation were 29 and 11 days in the strain ASI19003, 30 and 12 days in ASI19016. The color of the cap in the ASI19003 strain according to temperature increase during the fruit body development become more pale, but the strain ASI19016 kept dark color relative to ASI19003. The fruiting body formation of the strain ASI19016 was faster than that of ASI19003. Accordingly, the cultivation of A. cylindracea ASI19003 during the spring, fall and winter, and A. chaxingu ASI19016 during the summer can keep high quality and stable supply all year round of these mushrooms.

• Journal of Mushroom
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• v.9 no.1
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• pp.22-26
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• 2011

We bred a new strain of Pleurotus eryngii. It's name is 'Gongi No.3' and it was bred by mating monokaryotic strain isolated from E08-5D2 and dikaryotic strain GMPE25016 from 2006 to 2010 in Mushroom Research Station, Gyonggi province A.R.E.S. The characteristics of a new strain 'Gongi No.3' is as follows ; The optimum temperature for mycelium growth was from 26 to 29 degrees celsius on PDA medium and those for the premodium formation and the growth of fruit body were from 14 to 18 degrees celsius. The period of spawn running was around 30days at 22 degrees celsius and the period taken from scratching old spawn to make premodium were 8 days. The color degree of cap surface was measured by color difference meter and that of a new strain 'Gongi No.3' was 54.4 by L-value. it was seem to be dark, compared with 'Keunneutari No.2'. The hardness of fruit body of a new strain was higher than 'Keunneutari No.2'. The yield was about 180g per bottle(1100cc). it was 10g more than 'Keunneutari No.2'.

• Journal of Mushroom
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• v.20 no.3
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• pp.153-162
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• 2022

The purpose of this study was to breed a variety of stable productivity and high storage characteristics of white Hypsizygus marmoreus, which has high demand at domestic and global market due to a low bitter taste and the preference for white species. Accordingly, 'Baekmaru' was bred by hybridizing brown and white cap color species and backcrossing with white species. The 'Baekmaru' variety was bred by crossbreeding the brown and white species and backcrossing the white species. Through repeated cultivation of 'Baekmaru', a variety with a low contamination rate was selected when culturing the spawn for stable cultivation. As a results of demonstration test, the yield of 'Baekmaru' was 14% higher than that of the commercial variety. In addition, among the fruiting body characteristics of 'Baekmaru', diameter and thickness of the pileus were 16.43±15.27mm and 6.46±0.58mm, which were slightly higher than the commercial variety, and the hardness was 2.69±0.89N for the pileus and 3.09±0.89N for the stipe. The shelf life showed less change in thickness and color of pileus compared to commercial variety. The hardness of pileus of 'Baekmaru' was maintained in the range of 3.5 to 4.0N in the 4℃ and 4℃ and 20℃ mixed treatment until 30 days of storage, and was higher than that of the commercial variety. Therefore, it was suggested to be excellent in storability.