• The Plant Pathology Journal
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• v.17 no.6
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• pp.372.1-372
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• 2001

• Korean journal of food and cookery science
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• v.11 no.2
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• pp.113-118
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• 1995

A preferable mixing ratio of a six-vegetable juice was suggested in this study. The vegetables used for preparation of mixed vegetable juice were carrot(Ct), cabbage(Cg), pear(Pr), cucumber(Cr), celery (Cy) and dongchimi(Di). The characteristics of pH, titratible acidity, reducing sugar, turbidity, solids, color and acceptability were compared to determine the mixing ratio. The vegetables showed a wide ranHe of pH of 3.70-6.01, acidity of 28.92 uv~74.40 nd and reducing sugar of 1.20ft~ 12.69fo. Celery juice showed the higest suspension stability and "b" value and the lowest values in Hunter "L" and "a" values among the 6 vegetable juice. The preferable mixing ratio of two-vegetable juice selected were Ct-Di(1 : 4), Cg-Pr(1 : 3) and Cr-Cy(3 : 1). From the various ratio of the three of biary mixtures of Cg-Pr(1 : 3): Ct-Di(1 : 4): Cr-Sy(3 : 1), two ratio of 5.0 : 2.5 2.5(V-6A) and 6.0 : 2.0 : 2.0(V-6B) were suggested as the most prefered six-vegetable juice. Pear, dongchimi and cucumber were found to be influential on the preference. The pH and titratible acidity of the two juices with different ratios were in the range of 4.92~4.98 and 36.g∼37.4 ml, respectively.

• Korean Journal of Pharmacognosy
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• v.32 no.4 s.127
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• pp.330-337
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• 2001

Prickly pear(Opuntia ficus-indica var. saboten Makino, Cactaceae) is a tropical or subtropical plant, which is widely used as folk medicine for burned wound, edema and indigestion. Screening on the biological properties of the fruits(OFS-Fr) and stems(OFS-St) of the plant was carried out to prove the pharmacological significance. By hot plate and acetic acid-inducing writhing methods, significant analgesic effects of OFS-Fr and OFS-St were found in mice and anti-edemic effect was observed in carrageenin-induced inflammatory rats. However, the extracts showed no significant actions on central and autonomic nervous system and blood circulatory system, which imply no toxic effects to animal.

• The Korean Journal of Soil Zoology
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• v.9 no.1_2
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• pp.24-28
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• 2004

Predaceous phytoseiid mites can be important components in integrated mite management program including bio-logical control of spider mites. While conducting population study of prey-predator system in pear orchards, 6 predaceous phytoseiids were found. Amblyseius womersleyi, A. eharai, A. kokufuensi and A. finlandicus were mostly found from tree canopy. While A. rademacheri was restricted in ground vegetation, A. makuwa was equally distributed in ground vegetation and tree trunk. Some ecological information for each species was reviewed. Strate-gies for their potential utility in pest management program and future study area were discussed.

• Journal of the Korean Applied Science and Technology
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• v.6 no.2
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• pp.75-87
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• 1989

Study to report this result that state of lipid peroxides while beef Bulgogi Coocking of general-seasoning, sale-seasoning, each flavour's characteries. Raw meat show high lipid peroxides amount and high increasing in heat and antioxidative effected by flavour about lipid peroxidies change existence by beef Bulgogi seasoning. Change of lipid peroxides are significant increased in meat cold storage and cold storage and cold storage heat meat after while 30 minute after seasoned and reduced 9 hour - 33 hour cold storage raw meat, that change of lipid peroxides by cooking time. every condition by adding soften were revealed lipid peroxides, reduce. Lipid peroxide change are very high while no-sugar in raw meat and not a stone look in 9-hour raw-meat after seasone about antioxidative effect by each flavour characteristic TBA showed very high not take parched seasone seeds item about 30-minute cold storage beat raw-meat and high lipid peroxides revealed increase in not take wine item, not take a pear item, in 9 hour cold storage heat-meal and it showed little amount not-sugar item, no opepper item. According to high lipid peroxides change reduced high after seasoned cold storage stage in Korea traditional Bulgogi Cooking and thought high that action of antioxidative lipid peroxides wine and a pear in flavour.

• Journal of the Korean Home Economics Association
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• v.44 no.6 s.220
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• pp.155-161
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• 2006

This study investigated housewives' perception of local special foods in Gwangju and Jeonnam in Gang Jin. Of 150 questionnaires sent, there were 114 responses. The most perceptible local special foods in Gwangju and Jeonnam area are as follows: Watermelon in Gwangju (100.0%), Pear in Naju (90.0%), Rice in Suncheon (40.0%), Gorosoe in Gwangyang (76.7%), Hongeo in Mopko (63.3%), Dolsan leaf mustard Kimchi in Yeosu (100.0%), Sweet Persimmon in Jangseong (86.7%), Salted bamboo sprout in Damyang (46.7%), Apple in Gokseong (90.0%), Butterfly rice in Hampyeong (63.3%), Gorosoe in Gurye (56.7%), Onion in Muan (96.7%), Peach in Hwasun(40.0%), Dallmaji rice in Yeongam (50.0%), Oyster mushroom in Jangheung (63.3%), Green tea in Boseong(96.7%), Heuksanhongeo in Sinan (53.3%), Loess sweet potato in Haenam (83.3%), Kukija in Jindo (60.0%), Laver in Wando (76.7%), Tohajeot in GangJin (73.3%), Citron in Goheung (90.0%), and Gulbi in Yeonggwang (100.0%). The most perceptible area and local special foods in Gwangju and Jeonnam area were in the following order: Green tea in Boseong (17.37%), Tohajeot in GangJin (15.97%), Watermelon in GwangJu (10.0%), Pear in NaJu (9.3%), and Loess sweet potato in Haenam (9.3%).

• Transactions of the Korean Society of Mechanical Engineers B
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• v.33 no.7
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• pp.506-511
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• 2009

Insect flight is adapted to cope with each circumstance by controlling a variety of the parameters of wing motion in nature. Many researchers have struggled to solve the fundamental concept of insect flight, but it has not been solved yet clearly. In this study, to find the most effective flapping wing dynamics, we conducted to analyze CFD data on fixing some of the optimal parameters of wing motion such as stoke amplitude, flip duration and wing rotation type and then controlled the deviation angle by fabricating wing tip motion. Although all patterns have the similar value of lift coefficient and drag coefficient, pattern A(pear-shape type) indicates the highest lift coefficient and pattern H(pear-shape type) has the lowest lift coefficient among four wing tip motions and three deviation angles. This result suggest that the lift and drag coefficient depends on the angle of attack and the deviation angle combined, and it could be explained by delayed stall and wake capture effect.

• Korean journal of applied entomology
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• v.17 no.3 s.36
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• pp.139-142
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• 1978

Activities of several hydrolytic enzymes in the rusted pear loaves were estimated. Tested enzymes were cellulase (Cx), invertase $\beta-amylase$, pectinase (pectinmethylesterase and polygalacturonase), and phosphatase. Enzyme activities represented by pH value-enzyme activitycurve. Activities of Cx. invertase. and $\beta-amylase$ were higher in the healthy part than those in the near-lesion and lesion parts. and showed the maximal activities around pH 7.0. On the other hand, activities of pectinase and phosphatase were higher in the lesion and near-lesion parts than in the healthy part. Pectinmethylesterase activities in the healthy and diseased parts were different with different curve-pattern as the pH of treating solution changed.

• Food Science and Preservation
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• v.10 no.2
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• pp.142-146
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• 2003

In order to prepare allowable guidelines for weight loss for packed agricultural produces during distribution after harvest, resipration and transpiration rates were investigated for fruits such as peach, apple, pear, persimon and mandarin which produced in Korea. Respiration and transpiration rates were widely different from cultivar and harvesting season among same produces. Respiration rates were increased as an environmental temperature was increased. Moisture amount that produced by respiration in five fruits was 3.55∼107.67mg/kg/h and those moisture amounts were considered as no much influence for the strength of cartons for packing of fruits. Moisture amount produced from transpiration was 24 ∼ 1,195g for 15kg packing unit of fruits in 5 days. after harvest.

• Korean Journal of Soil Science and Fertilizer
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• v.48 no.1
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• pp.15-21
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• 2015

The use of cover crops has a beneficial effect on sustainable soil management in pear orchards. We aimed to compare changes in soil chemical properties and biota with the use of different cover crops. We tested the effects of five cover plants, including hairy vetch, orchard grass, rattail fescue, rye, and perennial ryegrass. Use of different cover crops had a minimal impact on soil chemical properties through three year experiments. The aboveground biomass was greatest with the use of rye. The potential amounts of returnable N and P were highest when leguminous hairy vetch was used as a cover plant. Changes in the composition of the microbial community were investigated by phospholipid fatty acid (PLFA) analysis. Microbial PLFAs were highest with the use of rattail fescue and lowest with the use of hairy vetch. Minimal changes in the abundances of nematodes and microarthropods suggested that there was no bottom-up control in the soil ecosystem. The results also show that increases in aboveground biomass and nutrient content with the use of cover crops may not promote the abundance of soil organisms.