• 제목/요약/키워드: Appearance frequency

검색결과 575건 처리시간 0.026초

선재도산 이매구 유생의 출현빈도에 관한 생태학적 관찰 (Ecological Observation on the Appearance Frequency of the Bivalve Karvae in SUn-Jae Island)

  • 최기철;주일영;이종국
    • 한국동물학회지
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    • 제4권1호
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    • pp.13-20
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    • 1961
  • 우리나라 서해안인 경기도 부천군 선재도에서 산출되는 이매구류의 출현 빈도 분포 상태를 1959년 8월부터 1960년 10월에 걸쳐서 생태학적인 조사를 하였다. 1) Sampling 은 motor pump를 사용하여 원하는 깊이에 따라 각각 plankton을 채집하여 현미경으로 고나찰하여 KArvae 의 수를 조사하였다. 2) 각 stage의 larvae을 측정한 결과, 가장 어린 것은 60$\times$54$\mu$이었고, 가장 큰 것 은 320$\mu$336$\mu$이었다. 3) 이매구의 larvae 들은 수중에서 불규칙하게 분포하였다. 온도의 상승에 따라서 larvae의 분포는 증가되고, 대체로 온도가 하강함에따라서는 감소되었다. 4) 어린 stage의 larvae 수는 7월-9월 에 걸쳐 출현빈도가 높았다. 이것은 이시기가 선재도에 있어서는 이매구류의 산란시기라고 생각된다. 5) 8월-9월에 걸쳐서 대형의 alrvae의 출현빈도가 감소되는데, 이것은 larvae가 착생되었기 때문이라 생각된다.

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비수술적 부분비만 치료 효과에 관한 근거 중심적 연구 (The Review on the Evidence : Effects on Non-surgical Localized Fat Treatments)

  • 송미영;이명종;김호준
    • 한방비만학회지
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    • 제6권1호
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    • pp.1-10
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    • 2006
  • Localized fat and cellulate have not only esthetic but health problem, they are treated by surgical or non-surgical method. There are elecro-acupuncture, ultrasound, radio frequency, endermologie, mesotherapy, and carbon dioxide therapy in prevalent non-surgical treatments. We reviewed the studies on them to analyze their seicntific evidence. The studies are not many. They reported good results of circumference loss or appearance improvement of histologic change but most of them have poor study design. Before marketing or using these modalities, it is ontcal to evaluate to their effectiveness through strict and scientific clinical trials.

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IoT 네트워크에서 다중 스케일 PCA 를 사용한 트렌드 적응형 이상 탐지 (Trend-adaptive Anomaly Detection with Multi-Scale PCA in IoT Networks)

  • Dang, Thien-Binh;Tran, Manh-Hung;Le, Duc-Tai;Choo, Hyunseung
    • 한국정보처리학회:학술대회논문집
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    • 한국정보처리학회 2018년도 춘계학술발표대회
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    • pp.562-565
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    • 2018
  • A wide range of IoT applications use information collected from networks of sensors for monitoring and controlling purposes. However, the frequent appearance of fault data makes it difficult to extract correct information, thereby sending incorrect commands to actuators that can threaten human privacy and safety. For this reason, it is necessary to have a mechanism to detect fault data collected from sensors. In this paper, we present a trend-adaptive multi-scale principal component analysis (Trend-adaptive MS-PCA) model for data fault detection. The proposed model inherits advantages of Discrete Wavelet Transform (DWT) in capturing time-frequency information and advantages of PCA in extracting correlation among sensors' data. Experimental results on a real dataset show the high effectiveness of the proposed model in data fault detection.

Simultaneous Observation of Fe-F and F-Fe-F Stretching Vibrations of Fluoride Anion Ligated Tetraphenylporphyrin Iron(Ⅲ) by Resonance Raman Spectroscopy

  • 이인숙;신지영;남학현;김도균;팽기정
    • Bulletin of the Korean Chemical Society
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    • 제18권7호
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    • pp.730-733
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    • 1997
  • Monofluoroiron(Ⅲ) tetraphenylporphyrin, Fe(TPP)F, and difluoroiron(Ⅲ) tetraphenylporphyrin, [Fe(TPP)F2]- were generated in a various non-aqueous solvents by the reaction between Fe(TPP)Cl and tetrabutylammonium fluoride TBAF 3H2O. Formation of the these complexes was detected by the appearance of the ν(F-Fe) (ν, stretching vibration) at 506 cm-1 for Fe(TPP)F and the ν(F-Fe-F) at 448 cm-1 for [Fe(TPP)F2]-, simultaneously, with 441.6 nm excitation by Resonance Raman (RR) spectroscopy. These assignments were confirmed by observed frequency shifts due to 56Fe/54Fe and TPP/TPP-d8/TPP-N15 isotopic substitutions. Difluoroiron complex is an iron(Ⅲ) high-spin complex with the oxidation sensitive band at 1347 cm-1 for ν4 and core size/spin state sensitive band at 1541 cm-1 for ν2.

Amphipods(Crustacea: Malacostraca) fauna from Chujado Island in Korea

  • Kyung-Won Kim;Xin Zhang;Jae-Hong Choi;Jun Kim;So-Yeon Shin;Young-Hyo Kim
    • Journal of Species Research
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    • 제12권1호
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    • pp.1-26
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    • 2023
  • A faunal study on Amphipods belonging to the class Malacostraca was conducted 26-29 August 2021 at 12 sites in Chujado Island, Korea. This study found that 68 amphipod species in 39 genera, 19 families were living on Chujado Island. Among these 19 families, the family Caprellidae (20 species) showed the highest abundance. Ampithoidae (7 species) and Dexaminidae (6 species) were subdominant families. The species Stenothoe valida Dana, 1852 (found at 10 of 12 sites) was the most frequent and widespread species. Caprella scaura Templeton, 1836 was identified at 9 of 12 sites and had the highest frequency of appearance among 20 species of Caprellidae. Among the 68 species, Ampithoe waialua J.L. Barnard, 1970 and Melita nagatai Yamato, 1987 are newly recorded species in Korean fauna. These newly recorded species are fully illustrated and compared with related species. We provide an amphipod fauna in Chujado Island with a list, figures, and a table.

20-40대(代) 여성(女性)의 외모관심도(外貌觀心度)에 따른 외모관리행동(外貌管理行動) (A Research of Apperance-mnagement Bhavior in 20-40's women according to Degree of Apperance Concern)

  • 김성남;이경숙
    • 패션비즈니스
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    • 제11권4호
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    • pp.29-41
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    • 2007
  • This study is to research how women aging from 20 through 40 Apperance -Mnagement Bhavior and care of their outer looks from a beauty treatment perspective. This research should help satisfy the wants of women who are the main clients of the beauty products and help the beauty industry to produce new products and also to help out on their marketing strategy. In order to search the general characteristics of our target women, Frequency Analysis was used, to find out the sub-factor of interest in beauty Factor Analysis and Reliability Analysis was used. In order to divide the group according to Degree of Apperance Concern 'sub-factor, cluster analysis, analysis of variance, Scheffe'-test, $X^2-test$ was used, and to find out the difference on how they care of beauty analysis of variance was used, and further more to summarize the result of analysis of variance Scheffe'-test was used. As a result, in all different ways of beauty caring, weight resisting, skin care and plastic surgery summed up similarly among the self-care group, hair care ended up with similar results among all three groups: self-caring group, no interest in beauty at all group, and the too conscious of other eyes group, and results on the interest rate of clothing ended up similarly among the other-eye conscious group, beauty care interest group, and the self-care group.

급성 수부 손상시 즉시 족지 전이술 (Immediate Toe-to-Hand Transfer in Acute Hand Injuries)

  • 우상현;김학수
    • Archives of Reconstructive Microsurgery
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    • 제11권1호
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    • pp.19-28
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    • 2002
  • From 1994-2001, 25 mutilated digits were reconstructed with immediate toe-to-hand transfer in acute hand injury in 21 patients. There were 15 cases of great toe-to-hand transfer(partial great toe transfer 8 cases, modified wrap-around procedure 2 cases, and trimmed great toe transfer 2 cases) for thumb reconstruction, 2 cases of second toe transfer for index reconstruction, and 4 cases of simultaneous two toe-to-hand transfer(great toe & second toe transfer 1 case, bilateral second-toe transfer 2 cases, combined second & third toe transfer 1 case) for reconstruction of multiple digit amputations. Two cases of emergency exploration(2/25, 8%) were successfully salvaged. The incidence of emergency exploration and postoperative infection was not significantly different from that of the elective toe-to-hand transfer cases. Duration of industrial insurance coverage was 225 days, which is much shorter than that of elective cases. Among 43% of patients maintained their original job even after injury and immediate toe-to-hand transfer. The subjective satisfaction self- assessment scores of aesthetic appearance and function on the new reconstructed thumb were 80 and 88 in average, respectively, over a total score of 100. These were higher than those of reconstruction of other digits, but lower than those of elective reconstruction. The donor site after harvest of the great toe was mostly unsatisfied in a view of appearance. Immediate toe-to-hand transfer provides many advantages over elective procedure in acute hand injuries such as single stage reconstruction, shortened convalescent period, early return to work and efficient socio-economic factor. Furthermore because there were no significant differences in success rate, frequency of complications or ultimate functional result, immediate toe-to-hand transfer is a safe and reliable procedure in case of limited indications for acute digits loss.

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Fusarium moniliforme의 Strain 별(別) 육묘상(育苗床)과 본답(本畓)에서 병(病) 발생(發生)과 피해(被害) 해석(解析)에 관한 시험(試驗) (Pathogenicity in Nursery Box and Symptom Appearance and Yield Damage in Paddy Field by Each Strain of Fusarium moniliforme)

  • 성재모;양성석;이은종
    • 한국균학회지
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    • 제12권2호
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    • pp.65-73
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    • 1984
  • Fusarium moniforme의 4가지 Strain중 Strain IV가 가장 병원성(病原性)이 강(强)하면서 유묘(幼苗)를 도장시키면서 고사(枯死)시키었다. 이병주(罹病株)는 Strain에 관계없이 밀양 23호와 남풍벼는 mesocotyl를 형성하였으나 삼남벼와 진주벼는 mesocotyl를 형성하지 않았다. Mesocotyl를 형성하는 밀양 23호와 남풍벼는 포장에서 건전화(健全化)되었으나 mesocotyl를 형성하지 않는 삼남벼와 진주벼는 대부분 고사(枯死)하였다. 이병(罹病)된 부위(部位)에서 병원균(病原菌)을 분리(分離)한 결과(結果)가 Strain IV가 가장많이 분리(分離)되었으며 분리부위(分離部位)는 벼전체에서 분리(分離)되었다. 키다리병출현(病出現)은 Strain IV에 이병(罹病)된것이 가장많이 본답(本畓)에서 키다리증상(症狀)을 보였으며 주당(株當)분얼수와 수량도 Strain IV에 이병(罹病)된 것은 상당히 감소 되는 경향이었다.

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음향 가진된 충돌 역 확산화염의 화염형상과 열전달 특성에 관한 실험적 연구 (An Experimental Study on the Flame Appearance and Heat Transfer Characteristics of Acoustically Excited Impinging Inverse Diffusion Flames)

  • 강기중;이기만
    • 한국산학기술학회논문지
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    • 제11권10호
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    • pp.3647-3653
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    • 2010
  • 본 오디오 스피커로 음향 가진과 비가진 된 충돌 역 확산화염에서 화염의 형상과 열전달 특성에 관한 실험적 연구를 수행하였다. 가진에 의해 화염은 반응대가 넓어지고 화염 길이는 좀 더 짧아지는 경향을 보이며 충돌판의 정체점에서 열전달 성능인 열유속은 가진에 의해 향상되는 것으로 나타났다. 이러한 가진 효과는 당량비가 높은 과농한 상태 보다 상대적으로 낮은 혼합 상태에서 효과적으로 영향을 미치는 것으로 파악되는데 이는 가진에 의해 주위산화제가 연료 분류로의 유입이 향상되어 나타나는 것으로 판단된다. 이러한 현상으로 본 연구에서는 당량비가 0.8인 경우 정체점에서 총 열유속이 최대 57% 증가되는 것으로 나타났다. 따라서 본 연구를 통해 가진 연소가 충돌 분류 화염에서 열전달 성능을 향상시키는데 효과적인 방법임을 확인하게 되었다.

청소년의 의복행동에 대한 자아중심성, 자의식, 신체만족도의 영향 연구 (The Effects of Egocentrism, Self-Consciousness, Body Cathexis on Adolescence Clothing Behavior)

  • 고애란;김양진
    • 한국의류학회지
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    • 제20권4호
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    • pp.667-681
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    • 1996
  • The purposes of this study were 1) to identify the effects of age and sex on adolescent's psychological characteristics-egocentrism, self-consciousness, body cathexis and clothing behaviors and 2) to identify the effects of psychological characteristics on clothing behaviors in each of the 6 groups classified by sex and age. Egocentrism was measured by Kim's Imaginary Audience Scale, and body cathexis, by the modified record and Jourard"s Body Cathexis Scale. Buss's Self-Consciousness Scale was slightly modified to assess public and private self-consciousness, and five aspects of clothing behavior were assessed with the questionnaires from the previous studies. The questionnaire were administered to 713 middle and high school boys and girls, and college students living in Seoul. Data were analyzed by frequency, factor Analysis, two-way ANOVA, and multiple regression analysis. The results of this study were as follows: 1) Four factors of egocentrism were identified : Potency, Appearance/populatity, Sympathy and Justice. Four factors of clothing behavior were Clothing exhibition/dressing for others, Clothing interest, Psychological dependence, and Clothing conformity. 2) Sex and age were found to have effects on psychological variables and clothing behaviors of adolescence. Females showed higher egocentrism, self- consciousness, clothing behaviors, but lower body cathexis than males. The mean scores of egocentrism, self-consciousness, clothing behaviors tended to increase with age. However, high school boys showed unique tendency, as they showed higher scores in those variables than the other two age groups. 3) Egocentrism (Appearance/populality factor) and public self- consciousness were the most influencial variables on adolescent's clothing behavior among psychological characteristics. Private self-consciousness was found to be an important variable in explaining Psychological dependence.ence.

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