• Title/Summary/Keyword: 임성

Search Result 334, Processing Time 0.026 seconds

Fuzzy-Logic Based Service Restoration of Primary Distribution Systems (퍼지 로직을 이용한 배전계통 복구)

  • Lee, Seung-Jae;Lim, Seong-Il;Kim, Ki-Hwa;An, Bok-Shin;Kim, Dae-Hwan
    • Proceedings of the KIEE Conference
    • /
    • 1995.11a
    • /
    • pp.67-70
    • /
    • 1995
  • Service restoration has become more important function in the distribution systems. Conventional scheme considers only the single criterion such as margin, switching number and thus lacks the practical power. This paper proposes a new scheme adopting tile fuzzy decision making technique, general ins a more effective restoration plan.

  • PDF

허브를 유효성분으로 하는 식이보조재의 현황

  • Im, Seong-Il
    • Bulletin of Food Technology
    • /
    • v.15 no.2
    • /
    • pp.100-106
    • /
    • 2002
  • 일반적으로 허브란 파슬리, 살비아, 로즈마리, 타임 등으로만 생각하는 사람이 적지않다. 원저자인 지촌이삼부도 수년 전에는 그렇다고 생각하였다. 후생과학연구 '신개발식품 등의 안전성확보에 관한 연구: 주임연구자는 국립건강 영양연구소의 지상행강부장(현대처녀자대학교수)'에 참여하여 뇌를 대상으로 하는 신개발식품에 대한 조사를시작하기 전의 일이다. 일반인 대상의 서적(식재도전.소학관)에도,'현재, 허브는 요리에 맛을 내고, 음료로서, 혹은 단순히 야채로서 이용하거나, 화장품, 입욕제등에 이용되는데, 냄새나 향미가 있는 유럽의 식물이라는 의미로서 사용되는 경우가 많다'라고 기록되어 있다. 한편,'허브는 원래, 단순히 "초"를 의미하는 단어이다. 역사적인 관점에서 보면 허브는"약효가 있는 식물"로서 사람들에게 이용되어 온 것이다'라고 기록되어 있다.

  • PDF

Trend and Issues of van der Waals 2D Semiconductor Devices (반데르발스 2차원 반도체소자의 응용과 이슈)

  • Im, Seongil
    • Vacuum Magazine
    • /
    • v.5 no.2
    • /
    • pp.18-22
    • /
    • 2018
  • wo dimensional (2D) van der Waals (vdW) nanosheet semiconductors have recently attracted much attention from researchers because of their potentials as active device materials toward future nano-electronics and -optoelectronics. This review mainly focuses on the features and applications of state-of-the-art vdW 2D material devices which use transition metal dichalcogenides, graphene, hexagonal boron nitride (h-BN), and black phosphorous: field effect transistors (FETs), complementary metal oxide semiconductor (CMOS) inverters, Schottky diode, and PN diode. In a closing remark, important remaining issues of 2D vdW devices are also introduced as requests for future electronics and photonics applications.

Enhanced Rules for Setting and Coordination of Distance Relays (거리계전 보호방식의 정정 및 협조 지식의 개선)

  • Lee, Seung-Jae;Kim, Hyo-Jun;Yim, Sung-Il
    • Proceedings of the KIEE Conference
    • /
    • 1993.07a
    • /
    • pp.93-95
    • /
    • 1993
  • This paper proposes the enhanced rules for setting and coordination of the relays in the distance relaying. The developed new rules to diagnose the coordination based on the system information are expected to be very helpful in the system expansion planning stage. An expert system to adopt those rules have been developed using the hybrid AI tool, NEXPERT-OBJECT.

  • PDF

On the Fertility of Several Polyploidy Mulberries, Morus, Fructified by Natural Cross (배수성 뽕나무에 있어 자연교잡한 경우의 임성)

  • 박광준
    • Journal of Sericultural and Entomological Science
    • /
    • v.36 no.2
    • /
    • pp.97-101
    • /
    • 1994
  • The fertilities of pyloploidy mulberries and the germination abilities and shape of poliploidy mulberry seeds fructified by natural cross were investigated and the results are as follows. Regarding the size of seeds, that of the tetraploid was the biggest and that of hexaploid was the smallest among the investigated polyploids. Those of diploid and triploid ranged between those of tetraploid and hexaploid. The fertilization rates of the varieties of Shinkwangppong and Cheongunppong, which were triploid, were 25.4 and 55.0%, respectively, and Shinkwangppong showed 10.2% of cross rate, but Cheongunppong did not have germination ability. The tetraploid seeds showed 61~68% of fertility and 30~54% of cross rate. The Puksan No. 2, which is hexaploid, had about 43% and 7% in fertility and cross rate, respectively. The germination abilities of floating seeds of diploid and tetraploid were comparatively high, but the floating seeds of triploid and hexaploid did not have germination ability. The seeds of diploid had a high fertility of 81~95% and a comparatively high cross rate of 47~74%.

  • PDF

Seed Setting and Viability and Fertility of Pollens in Families of Artificial and Natural Interspecific Hybrids in Lepidobalanus of Genus Quercus (참나무속의 인공 및 자연 종간잡종 가계의 종자결실 및 활력과 화분의 임성)

  • Lee, Jeong-Ho
    • Journal of Korean Society of Forest Science
    • /
    • v.96 no.3
    • /
    • pp.290-294
    • /
    • 2007
  • Interspecific hybrid seedlings by artificial crossing of Genus Quercus (Q. serrata, Q. dentata, Q. mongolica var. crispula, Q. aliena) were planted at nursery in Tottori University. Seedlings of hybrids by natural crossing(Q. fabri and $Q.{\times}mccormickii$) were selected and planted at Hiruzen district in Tottori University. Artificial interspecific hybrid $F_1$ and natural hybrid $F_1$ bloomed when they were 4 years old and 3 years old, respectively. The pollen fertility and seed viability were investigated from the bloomed individuals in 2001. The germination percentages of the pollens of artificial interspecific hybrid were more than 84% except one individual, and the extension of pollen tubes was normal. The normal seed percentages of artificial interspecific hybrid were more than 90% similar to parents. Germination percentages of normal seed of natural crossing family were more than 64%, respectively, and selfed offsprings of Q. fabri, and $Q.{\times}mccormickii$ hade high reproductive ability.

STUDIES ON THE INTERSPECIFIC CROSSING OF GENUS FORSYTHIA (개나리국의 종간교잡에 관한 연구)

  • HARN, Chang Yawl
    • Journal of Plant Biology
    • /
    • v.4 no.1
    • /
    • pp.1-7
    • /
    • 1961
  • Harn, Chang Yawl (Chonpuk U., Iri, Korea)-Studies on the interspecific crossing of FORSYTHIA genus. Kor. Jour. Bot. 4(1)1~8 1961: Interspecific crossing of two species, F. saxatilis and F. Koreana, was carried out in order to make clear the segregation ratio of style length, mode of fertility, the fertility of F1 generation, dioecism, and other taxonomic question, the result of which being summarized as follows: 1) Style length is segregated into 1:1 ratio. 2) The behaviro of fertility in the legitimate and illegitimate unions between the different species is exactly like that in the two dimorphic forms of the same species. 3) The mode of fertility between the long and short style of the F1 generation also follows that of the heterostyle plants. 4) No difficulties or irregularities are observed in the interspecific crossing and the F1's fertility. 5) In F1 generation exceedingly high morphological and physiological variations are observed. 6) The short style individual is well fertilized and sets seed when legitimately combined. The insistence that the short style is male, this genus being dioecious, is groundless. 7) Among F1 individuals, are observed a few dwarf-types with tiny and weak vegetative and reproductive organs. 8) The two species used behave in many ways like the different styles of the same species.

  • PDF

Taxonomic study on the capitulum morphology of Korean Artemisia (Compositae) (한국산 쑥속(국화과)의 두상화서 형태에 의한 분류학적 연구)

  • Park, Myung Soon;Hong, Ki Nam;Eom, Jeong Ae;Chung, Gyu Young
    • Korean Journal of Plant Taxonomy
    • /
    • v.40 no.1
    • /
    • pp.27-42
    • /
    • 2010
  • This study was intended to investigate the capitulum morphology and to evaluate its taxonomic importance within the 23 taxa of Korean Artemisia L. The Korean Artemisia was classified into sterile subg. Dracunculus and fertile subg. Artemisia by the fertility of the disk florets, which is the traditional diagnostic character of subgenera. There are sections in subg. Artemisia: sect. Absinthium with a densely, sparsely hairy receptacle, and sect. Abrotanum and sect. Artemisia with a glabrous receptacle. However, A. fukudo and A. sacrorum belonging to sect. Abrotanum, and A. viridissima belonging to sect. Artemisia were observed to have sparsely hairy receptacles. Therefore, the presence of hair on a receptacle, which is now regarded as a key character distinguishing sections, has to be reevaluated. The whole shape and size of the capitulum, the characteristic of the stigma apex, the hair on the involucral bract, and the shape of the central or peripheral floret are thought to be the most valuable characters to consider in recognizing species.