• 제목/요약/키워드: Plant Pattern

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퍼지 패턴인식법을 이용한 발전소 과도상태 판별 (Discrimination of Plant Transient by Using the Fuzzy Pattern Recognition)

  • 김종석;이동주
    • 한국공작기계학회논문집
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    • 제14권1호
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    • pp.37-43
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    • 2005
  • Plant pipe has a fatigue life which is induced by repeated stress come from the variation of temperature and pressure. To avoid the fatigue crack of plant pipe which is produced by long term repeated stress, plant operator has to limit the mont of operating transient. This paper introduced the study result about discrimination methodology of plant transient by using the fuzzy pattern recognition. As result of applying the fuzzy pattern recognition to actual plant operation data, it is confirmed that fuzzy pattern recognition methodology can be useful for the comparison of similarity for the transients of similar output but has different time pattern.

Inverse Relationship of Hemiptera Richness with Temperature in South Korea

  • Kwon, Tae-Sung;Jung, Sungcheol;Park, Young-Seuk
    • 생태와환경
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    • 제54권2호
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    • pp.102-107
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    • 2021
  • The distribution pattern of species richness was determined by temperature. To examine the relationship between hemipteran richness and temperature, hemipteran species were collected using pitfall traps at six different oak forest sites with different annual mean temperatures in South Korea. Multiple linear regression analyses were conducted with mean annual temperature (MAT) and plant richness to evaluate differences in hemipteran richness. The influences of MAT and plant richness of study sites on hemipteran richness were examined by comparing three models (plant richness+MAT+MAT2, plant richness+MAT, and MAT) or two models (plant richness+MAT and MAT). Hemipteran richness showed an inverse diversity pattern as a function of temperature, with higher species richness at lower temperature sites. Meanwhile, Aphididae showed a bell-shaped diversity pattern with the highest value at low medium temperatures. The regression analysis showed that hemipteran richness was affected by temperature and plant richness in their habitats.

Development of an RT-PCR assay and its positive clone for plant quarantine inspection of American plum line pattern virus in Korea

  • Da-Som Lee;Junghwa Lee;Seong-Jin Lee;Seungmo Lim;Jaeyong Chun
    • 농업과학연구
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    • 제49권4호
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    • pp.821-831
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    • 2022
  • American plum line pattern virus (APLPV), a member of the genus Ilarvirus in the family Bromoviridae, is one of the plant quarantine pathogens in Korea. In this study, 15 candidate primer sets were designed and examined to develop a reverse transcription polymerase chain reaction (RT-PCR) assay for plant quarantine inspection of APLPV. Using APLPV-infected and healthy samples, the primer sets were assessed for APLPV detection. To confirm the occurrence of nonspecific reactions, six ilarviruses (Apple mosaic virus, Asparagus virus 2, Blueberry shock virus, Prune dwarf virus, Prunus necrotic ringspot virus, and Tobacco streak virus) and 10 target plants (Prunus mume, P. yedoensis, P. persica, P. armeniaca, P. dulcis, P. tomentosa, P. avium, P. glandulosa, P. salicina, and P. cerasifera) were examined. Finally, two primer sets were selected. These primer sets could generate the expected amplicons even with at least 1 ng of the total RNA template in concentration-dependent amplifications. In addition, a positive clone was developed for use as a positive control in the abovementioned RT-PCR assay.

재식거리와 추비 시용량이 Burley 21과 KB 101의 수량과 단백질 Pattern에 미치는 영향 (EFFECTS OF PLANT SPACING AUD AMOUNT OF SIDE DRESSING ON THE YIELD AND PROTEIN PATTERN IN BURLEY 21 AND KB 101)

  • 김용규;김상범;김대송;류점호
    • 한국연초학회지
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    • 제10권1호
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    • pp.27-36
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    • 1988
  • This experiment was tarried out to investigate the effect of plant spacing and amount of side dressing on the yield, quality and protein pattern in burley 21 and KB 101. The results obtained were summarized as follow. 1 Yield and alkaloid content are increased In high plant population and side dressing. 2 . Quality is not affected by plant population and side dressing. 3 . Nitrogen content is decreased by late growing stage. 4. The bands of burley 21 seed are fewer than KB 101 seed bands in protein pattern. 5. In protein pattern, the bands of KB 101s leave are thicker than that of burley21s leave between 18,000∼14,000 of molecular weight.

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원자력발전소 시뮬레이터 데이터의 패턴인식을 이용한 압력경계기기 고장 진단 연구 (Study on Faults Diagnosis of Nuclear Pressure Boundary Components using Pattern Recognition of Nuclear Power Plant Simulator Data)

  • 안홍민;최현우;강성기;채장범
    • 한국압력기기공학회 논문집
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    • 제13권1호
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    • pp.48-53
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    • 2017
  • We diagnosed the defect using the data obtained from the nuclear power plant simulator. In this paper, we diagnosed faults in the nuclear power plant system for discovery instead of the traditional single-component or device unit. We created the six fault scenarios and used a fault simulator to obtain the fault data. It was extracted pattern from acquired failure data. Neural network model was trained and simple pattern matching algorithm was applied. We presented a simulation result and confirmed that the applied algorithm works correctly.

조선시대 식물문양의 현대화를 위한 패턴디자인 개발 연구 (A study on the development of pattern design for the modernization of the plant pattern in the Joseon dynasty)

  • 이명숙;조우현
    • 한국의상디자인학회지
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    • 제21권1호
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    • pp.163-180
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    • 2019
  • A pattern is a symbolic mark of the psychological expression and ornamental desire of the human interior. In particular, plant patterns, from ancient times to modern times, express beauty across both the east and the west. The Joseon dynasty had a strong national will, and it was a time when the symbolism of Korea was established. Plant patterns were decorative and symbolic, filled with meaning in both the textile and craft sectors. This study looked at the frequency and figurative characteristics of the types of plant patterns in textiles, ceramics, woodworking, and metal craftsmanship of the Joseon dynasty. In addition, pattern designs were developed by extracting unit patterns to maintain the original shape, and by adding, magnifying, reducing, and superimposing flat steps and employing the four-fold sequence. The data collected was 826 examples in textiles and crafts, and 34 species of plants were analyzed as follows. In general, the flower patterns preferred soft flowers, flowers, apricot, and peony patterns, and fruit patterns emerged as decorative designs for pottery and woodwork from the 17th century, featuring pomegranates, grapes, fluorines, peaches, and walnut floss. Textiles and woodwork were arranged with many circular designs, while pottery and metal crafts were filled in many ways. Expressive types appeared to be the same as stylistic types for textiles and ceramics, and the construction types were the same in pottery and metal crafts. As such, it was found that even in the different areas of the sculpture, the same aesthetic values were reflected in the common figurative features today. Therefore, in this study, we developed a unique and competitive pattern design that accommodates the modern times and the Joseon dynasty. This development is expected to contribute not only to the development of cultural and tourism products in the future, but also to the tourism industry induced by the Korean wave.

조선 중.후기 사찰 견직물에 나타난 특성 (Characteristics of Silk fabrics which was Collected in Temples of the Middle and the Latter Term Chosun Period)

  • 장현주;권영숙
    • 복식
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    • 제51권8호
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    • pp.1-12
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    • 2001
  • An empirical review on silk fabrics of the Chosen period showed that they varied in kind and design according to their uses. Thus the purpose of this study is to classify the fabrics into temple and excavated fabrics according to their uses and collected places and then to examine characteristics of each type. Concerning fabrics collected in temples. satin was most used, followed by twill, tabby, multiply, leno and gauze and clossing fabrics in order. Tabby and silk fabrics used Ju(紬) as their main material. Cho( ) was much more used in fabrics collected in temples than in excavated ones. This indicate that Cho( ), more luxurious than Ju(紬), had divine applications such as covering Buddha s bones of temples. Brilliant, colorful multiply fabrics using goldern and color threads had high effects of ornamenting altar covers, umbrellas, surplices and palanquins. Fabrics held in temples adapted composite designs, in which more than two shapes were used, rather than single ones. Single designs employed plant shapes in most cases. followed by treasures pattern, geometrical, cloud and animal shapes in order. Most composite designs used a combination of animal and plant shapes, followed by plant and geometry, treasures pattern and plant, cloud and animal, and animal, treasures pattern and plant in order. Few excavated fabrics used animal designs while fabrics collected in temples were often designed with shapes of propitious animals such as dragon. Treasures pattern. representing a good omen of Buddhism, was often used sing1y or sometimes compositely with another design.nother design.

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실내 포름알데히드 농도에 미치는 식물의 영향 (Plant Effects on Indoor Formaldehyde Concentration)

  • 박소영;성기준
    • 한국환경과학회지
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    • 제16권2호
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    • pp.197-202
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    • 2007
  • Formaldehyde is a typical indoor air pollutant that has numerous adverse health problems in modern living conditions. Phytoremediation that use plants to remove contaminants from polluted media can be applied to improve indoor air quality. Two sets of experiments; 1) two rooms in newly built auditorium and 2) a bed room in 2-year-old apartment; were performed to investigate plant effects on indoor formaldehyde concentration. It was observed from the experiments that plant can help decontaminating formaldehyde at low concentration level (0.1 ppm) but the effects decreased considerably at hish concentration (1ppm). The purification effects of indoor plant also showed the periodic pattern due to its physiological activity. More purification was observed as increasing plant density in the bed room but the formaldehyde concentration returned the original concentration level in two days after removing plants. It was suggested from the results that air purification using plants is an effective means of reduction on indoor formaldehyde level, though, reduction of source is highly desirable when the concentration level is high. The results also suggest that introducing supplementary purifying aids and/or efficient ventilation could be considered due to periodic removal pattern of plant.

전기영동법(電氣泳動法)에 의한 영지(靈芝)버섯 계통(系統)의 특성(特性) (Characterization of Isolates of Ganoderma lucidum by Electrophoretic Patterns of Enzymes)

  • 박원목;이용세;김성회;박용환
    • 한국균학회지
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    • 제14권2호
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    • pp.93-99
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    • 1986
  • 영지(靈芝)버섯(Ganoderma lucidum (Fr.) Karst.)의 16개 균주간(菌株關) 특성을 전기영동법(電氣泳動法)을 사용(使用)하여 단백질(蛋白質) pattern과 esterase, LAP의 동립효소(同位酵素) pattern에 의해 비교(比較) 관찰하여 다음과 같은 결과를 얻었다. 1. 자실체(子實體)의 esterase의 band pattern은 각(各) 균주간(菌株間) 특정 band의 유 무(有 無)와 위치(位置) 등에 의해 분류(分類) 할 수 있었으며 자실체(子實體)의 형태(形態)가 유사한 것은 band pattern에서도 유사하였다. 2. 동일균주(同一菌株)에서 편각(扁角)과 녹각형태(鹿角形態)로 형성(形成)된 자실체(子實體)의 esterase band pattern은 서로 동일(同一)한 pattern을 보였다. 3. 균주간(菌株間) 유연관계인 유사도 지수는 12.5%에서 100%의 변이 폭을 보였다. 특히 6과 7번의 두 균주간(菌株間)과 13,14,15,16번의 4균주간(菌株間)은 유사도지수가 100%이므로 유전적(遺傳的)으로 동일(同一)한 균(菌)이라 사료(思料)된다. 4. 균사(菌絲)의 단백질(蛋白質)과 esterase의 band pattern은 자실체(子實體)의 pattern과는 달랐으며 자실체(子實體)에서 동일(同一)한 pattern을 보였던 균주간(菌株間)에서도 균주간(菌株間) 특성을 가장 잘 보여 주었으므로 영지(靈芝)버섯 분류(分類)에는 균사(菌絲)의 esterase pattern이 가장 적합하다.

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배양조건에 따른 도열병균(Pyricularia oryzae) 균사체의 Esterase 동위효소 (Esterase Isozyme of Mycelium of Pyricularia oryzae under Various Cultural Conditions)

  • 박상호;박원모;김성회;이은종
    • 한국식물병리학회지
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    • 제3권3호
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    • pp.168-173
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    • 1987
  • 도열병균(Pyricularia oryzae) 균사체의 esterase 동위효소 pattern이 배양조건에 의하여 변화되는가를 $10\~25\%$ polyacrylamide gradient slab gel을 사용하여 알아보았다. 배양기간에 따라 배양 24일까지 동위효소 pattern은 변하지 않았지만 특징 band의 효소량에는 차이가 있었다. 탄소원(glucose, fructose, maltose, sucrose, starch), 단포자분리균주간, 계대배양 및 세포벽재생균주간의 동위효소 pattern은 변함이 없었다.

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