• Title/Summary/Keyword: 연화사

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Studies on the Bluish Egg treated by X-Rays in Economical Characters of Silkworm Bombyx Mori. L. (최청란에 $Co^60$ 조사가 누에의 실용형질에 미치는 영향)

  • 한계용
    • Journal of Sericultural and Entomological Science
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    • v.9
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    • pp.43-47
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    • 1969
  • This experiment was carried out to investigate the effect of gamma ray on the eggs of later stage in late fall rearing season. The results are summarized as follows: 1. The duration of larval stage was simmilar to that of control in any dose. The silkworm growth was uniform in does of 4,000 gamma ray, but in does of 8,000r 16000r was irregular. There were not malformed silkworms but many small silkworm. 2. Mortality of silkworms was very high 8,000r and over; virus diseases of 87.6 per cent, flacherie of 5.9 per cent and complication of 6.5 per cent. 3. The more the dose of gamma ray became, the lighter the weight full grown silkworm and matured silkworm became. 4. The uniformness of cocoons was registered in dose of 2,000r and the cocoons were irregular or small in dose of 16,000r

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Combined Effects of Vanillin and Antibrowning Agent on Changes of Quality and Microorganisms in Fresh-Cut Apples (바닐린과 갈변억제제 병용처리가 신선절단 사과의 품질유지와 미생물증식에 미치는 영향)

  • Chung, Hun-Sik;Toivonen, Peter;Moon, Kwang-Deog
    • Food Science and Preservation
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    • v.15 no.3
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    • pp.385-389
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    • 2008
  • The effects of high vanillin concentration on fresh-cut apples treated with NatureSealTM were investigated Apples were sliced, treated with 6% NatureSealTM or 6% NatureSealTM + 120 mM vanillin, packaged in polyethylene bags, and stored for 3 weeks at 4C. The L value, soluble solid level and titratable acidity of fresh-cut apples treated with NatureSealTM + 120 mM vanillin during storage were lower than those of fresh-cut apples treated with NatureSealTMonly; the growth of total aerobic bacteria, yeast and molds were also more inhibited in fresh-cut apples treated with NatureSealTM + 120 mM vanillin. These results show that the addition of 120 mM vanillin inhibits the growth of microorganism but 1m detrimental effects on the quality characteristics of fresh-cut apples treated with NatureSealTM.

Equine Amniotic Membrane Transplantation in Corneal Perforation Resulting from Melting Ulcer in a Dog (녹는 궤양에 기인한 각막 천공에서 각막 재건을 위한 말양막이식술 증례)

  • Kim, Jury;Bae, Jaehyun;Kwon, Yong-Hwan;Kim, Nam-Soo;Kim, Min-Su
    • Journal of Veterinary Clinics
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    • v.30 no.1
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    • pp.41-44
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    • 2013
  • A 4-year-old castrated male Shih-Tzu was presented to the Chonbuk National University Animal Medical Center with a history of melting ulcer in the right eye (OD). Upon ophthalmologic examination, severe keratomalacia of approximately 70% of the entire surface area with a full thickness corneal defect was found in OD. In addition, iris and fibrin clots were observed on the center of the corneal defect. The menace response and dazzle reflex were normal in OS. As the size and damage of corneal perforation was so severe, amniotic membrane (AM) transplantation was considered to repair the cornea instead of direct suture technique, flap methods or corneal transplantation. Equine AM was sutured to the limbus to cover the entire cornea in a single interrupted pattern using 9-0 nylon suture material. On day 79, mild scarring and pigmentation, with almost no vasculature, remained. The menace response and dazzle reflex were normal of OD. Although pigmentation and scarring remained on the cornea, equine AM transplantation can be useful for reconstruction of severe corneal perforation with keratomalacia.

Control of Softening of Long-Term Stored 'Fuji' Apples at Low Temperature and Subsequent Shelf-life by Combination Treatment of 1-MCP and Ethylene (1-MCP와 에틸렌 혼용처리가 장기간 저온저장 후 상온에 보관된 '후지' 사과의 연화 억제에 미치는 영향)

  • Choi, Hyun-Sug;Jung, Seok-Kyu
    • Journal of Bio-Environment Control
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    • v.26 no.2
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    • pp.108-114
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    • 2017
  • The effect of 1-methylcyclopropene (1-MCP) at $1.0{\mu}L{\cdot}L^{-1}$ was compared with control and $10{\mu}L{\cdot}L^{-1}$ ethylene treatment to evaluate softening control of apple (Malus ${\times}$ domestica Borkh.) fruit for 180 days at $0.5^{\circ}C$ in the air, followed for 28 days at a room temperature. 1-MCP or 1-MCP+ethylene treatment maintained high fruit titratable acidity and firmness after 120 days during the cold storage, which was similarly observed for 28 days at a room temperature. 1-MCP treatment maintained fruit firmness more than 14 N during the cold storage and shelf-life at room temperature. Fruit surface red color was not consistently affected by the treatments during the cold storage but enhanced more than 4.0 by 1-MCP at 21- and 28-days of room temperature. Control or ethylene treatment advanced overall preceeding of fruit softening as rapid ethylene production and respiration rates at 90 days during the cold storage increased to a climacteric maximum. Therefore, pre 1-MCP-treated fruit maintained high fresh condition at a long-term low storage + approximately one month room temperature-storage under $10{\mu}L{\cdot}L^{-1}$ ethylene treatment.

The study on Byunsangwha(Buddha's preaching paint) of 4 volumes of the script of 80 Avatamska Sutra present in Japan (일본(日本)에 현존(現存)하는 4권의 주본화엄경(周本華嚴經)의 변상획(變相畵)에 관한 연구)

  • Kwon, Hi-Kyung
    • Journal of Korean Society of Archives and Records Management
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    • v.4 no.1
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    • pp.67-85
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    • 2004
  • Four volumes of the script of the Avatamska Sutra written with golden paste on dark blue papers manufactured in Koryo Dynasty which are collected or deposited in every museum of Japan show specific features on their cover paintings. In general 3 or 4 lotus flowers are wound by arabesque patterns in zigzag on the cover paintings of Koryo scripts, whereas 10 lotus flowers painted with golden paste on the 4 volumes of these scripts are same in their style. Though there is no prayer sentences in 4 volumes of the script, it is possible to know that they should belong to a set of 80 Avatamska Sutra by the results of above studies. In this study the contents of Byunsangwha of the script of 4 volumes of the Avatamska Sutra were discussed at first and their manufactured era should be postulated by the results of style analysis of cover paintings and Byunsangwha. First thing that saint hair of Buddha was painted with cobalt color is same as that of Byunsangwha of Munsuchoisangsungmusenggebueob prayed in Tejeong 3rd year, king Chungsuk 13th year(AD 1326). Second thing that the beads in topknot of saint hair and lips were painted completely with pink color, and ears, face outline as well as bosom outline disclosed through monk's cloth were also painted with pink color, furthermore the last thing is that Buddha's face was coated with golden paste. All of these things are same as shown in the characteristics of Byunsangwha of the scripts of Kanezawa Daishoji, Matsue Tenrinji and Haga Tera collection in Japan. However, since the cloud pattern style of Byunsangwha of the script is similar to that of the Byunsangwha manufactured in reinstatement era of king Chungsuk, it is possible to say that these 4 volumes of script should be manufactured in the reinstatement era of king Chungsuk.

A Study on the Location and Spatial Organization Characteristics of the Royal Tombs Uireung (의릉(懿陵) 일원(一圓)의 입지(立地)와 공간구성특성(空間構成特性)에 관(關)한 연구(硏究))

  • Choi, Jong Hee;Kim, Heung Nyeon;Lee, Won;Eom, Tae Geon
    • Korean Journal of Heritage: History & Science
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    • v.43 no.1
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    • pp.212-235
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    • 2010
  • The purpose of this study is to examine the characteristics of the location and the spatial composition of Uireung that is located in Seokgwan-dong, Seongbuk-gu, Seoul, in order to understand the landscape architectural characteristics. The results are as follows. First, Uireung is 6.4km from Changdeokgung Palace and 5.5km from Heunginjimun Gate. It did not violate the distance standard (40km) for the royal tombs according to Joseon Dynasty Neung-won Myo-je. Second, Uireung is in harmony with the nature and shows the authoritative characteristics of the royal authority through the spatial composition and rank(Entrance Area, Ceremonial Area, Burial Area). Third, there are burial mound, stone sheep, stone tiger, stone table, stone watch pillars in the upper platform, and stone civil official, stone horse, stone lantern in the middle platform, and stone military official, stone horse in the lower platform, and T-shape shrine, worship road in the ceremonial area. There is no pond and a tomb keeper residence, but the position, size, and form can be approximated through historical research materials. There are a colony of pine trees around the burial mound and 64 species of trees such as pine tree, zelcova tree, and fir tree below the burial mound.

Effects of Combined Treatment with High $CO_2$ Concentration and Ascorbic acid on Browning of Fresh-cut 'Fuji' Apples (고농도 $CO_2$와 Ascorbic acid 처리가 신선절단 사과의 갈변에 미치는 영향)

  • Kim, Sun-Young;Cho, Jung-Seok;Jeong, Moon-Cheol;Moon, Kwang-Deog
    • Food Science and Preservation
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    • v.18 no.4
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    • pp.475-480
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    • 2011
  • This papers were studies the effects of high $CO_2$ concentration pretreatment and ascorbic acid on the browning of fresh-cut apples. The prepared samples were dipped in 1% (w/v) ascorbic acid solution (AA). Fresh-cut apples (3 pieces) were packed in polypropylene bags (0.03 mm, $20{\times}15$ cm), and stored at $10^{\circ}C$ for 16 days. AA-treated samples showed higher L value than those of non-treated and control (dipped in water without $CO_2$ pretreatment), while non-treated samples showed higher hardness than AA-treated sample. Total soluble solids, pH, titratable acidity were not affected by high $CO_2$ pretreatment and AA treatment. These result shows high $CO_2$ concentration pretreatment with dipping in 1% ascorbic acid solution (AA) has an effects on controlling enzymatic browning during the storage of fresh-cut 'Fuji' apples.

The Accumulation of Rare Earth Elements Fertilizer and its Subsequent Effects on Apple Fruit Quality at Harvest and During Storage (희토류비료 시비가 사과 과실내 축적과 수확 및 저장 중 사과품질에 미치는 영향)

  • Zheng, Wei-Wei;Park, Mu-Young;Hirst, Peter;Yoon, Tae-Myung;Chun, Ik-Jo
    • Journal of Bio-Environment Control
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    • v.21 no.4
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    • pp.452-458
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    • 2012
  • Rare earth elements fertilizer and Ca were sprayed on eight-year-old 'Fuji'/M.9 apple trees during two consecutive seasons, and fruit quality was quantified at harvest and 5-month long storing in a commercial cooling house at $4^{\circ}C$ and 80~85% RH. In the first season, single-sprayed of rare earth elements fertilizer showed appreciable accumulations of its elements (La, Pr, Gd, and Nd) in the fruit. In the following season, application of higher doses accumulated higher amount, indicating that the accumulation of rare earth elements was dose-dependent. However, rare earth elements did not affect the accumulations of Ca, Mg, and K in 'Fuji' apple fruit showed that there was no interaction between rare earth elements and these macronutrients. Double-spray of 0.2% rare earth elements increased fruit redness at harvest and had exhibited better color. Although at harvest it did not show significant effects on fruit weight, pulp firmness and titratable acidity (TA), but had pronounced effects on inhibiting fruit softness and retarded decrease of TA during storing. Furthermore, it reduced respiration rate and inhibited ethylene production during storing indicated that rare earth elements may be an alternative for prolonging the shelf life of 'Fuji'/M.9 apple fruit.

Studies on the Preservation of Apple -Effect of Inorganic Compounds Applied in the Field on the Shelf-life of Apples- (사과 저장(貯藏)에 관한 연구(硏究) -무기영양(無機營養)이 사과의 저장(貯藏)에 미치는 영향-)

  • Park, Nou-Poung;Kim, Yun-Jin;Kim, Sung-Kih;Rhee, Chong-Ouk
    • Korean Journal of Food Science and Technology
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    • v.9 no.1
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    • pp.13-18
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    • 1977
  • In order to improve the storage ability of Spur Red Delicious apple, calcium ingredients were applied to the apple tree during the growing period, and then the effects of calcium on appearances and respiratory activity of harvest apples were investigated during the storage period. The results of this work were summarized as follows: 1. The freshness of apples treated by calcium compounds reached $73{\sim}78%$, but that of control group was 68% by March of next year. 2. The respiratory rate of the apples that had been applied the high concentration of ammonium sulfate in field during the growing period, was accelerated rather than control group, and that of calcium treatment groups was continuously inhibited during the storage period. 3. The direct foliar application of calcium compounds in the field was more effective than dipping apples in calcium chloride solution for better quality and improving storage ability after harvest. 4. The freshness and hardness relatively not much decreased in calcium treatment groups even after 5 month storage.

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Development of Dipping Solution to Extend a Shelf-life of Fresh-cut Apples (Fresh-cut 사과의 품질 보존성 향상을 위한 침지액의 개발)

  • Kim, Jong-Chan;Kim, Seong-Cheol;Park, Kee-Jai;Jeong, Jin-Woong;Jeong, Seung-Weon
    • Korean Journal of Food Science and Technology
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    • v.38 no.1
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    • pp.35-41
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    • 2006
  • Possible application of hurdle technology extention of shelf-life of fresh-cut apples was investigated by evaluating various hurdle factors known to be effective microbial growth inhibitors and their synergistic effects. Fresh-cut apples treated with chitooligosaccharide or grapefruit seed extract (GSE) showed higher microbial counts than those treated with distilled water during latter half of storage period, and at high concentrations. Citric and malic acids showed similar results, although microbial counts of fresh-cut apples treated with 0.75% or higher concentration of citric acid increased at 4 days of storage at $18^{\circ}C$, indicating malic acid is more effective than all hurdles tested for controlling microbial growth. Using ascorbic acid and calcium chloride as additional hurdles to control browning and softening, minimum and maximum compositions of dipping solution were: 0.25 : 0.5 : 0.25% and 0.75 : 1.0 : 0.75% malic acid: ascorbic acid: calcium chloride, respectively.