• Journal of Species Research
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• 제6권spc호
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• pp.215-219
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• 2017

Two species new for Korea, Scolopocryptops nigrimaculatus Song, Song and Zhu, 2004 and Scolopocryptops mushashiensis Shinohara, 1984 are reported from South Korea. The Korean occurrance of S. nigrimaculatus is the first record of the species outside China, while S. mushashiensis has been known only form its type locality in Japan till now.

• 대기
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• 제29권4호
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• pp.463-480
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• 2019

This study classified heavy rain types from K-means clustering for the hourly relationship between rainfall intensity and cloud top height over the Korean peninsula, and then examined their statistical characteristics for the period of June~August 2013~2018. Total rainfall amount of warm-type events was 2.65 times larger than that of the cold-type, whereas the lightning frequency divided by total rainfall for the warm-type was only 46% of the cold-type. Typical cold-type cases exhibited high cloud top height around 16 km, large reflectivity in the upper layer, and frequent lightning flashes under convectively unstable condition. Phenomenally, the cold-type cases corresponded to cloud cluster or multi-cell thunderstorms. However, two warm-type cases related to Changma and typhoon were characterized by heavy rainfall due to long duration, relatively low cloud top height and upper-level reflectivity, and the absence of lightning under the convectively neutral and extremely humid conditions. This study further confirmed that the forecast skill of rainfall could be improved by applying correction factor with the overestimation for cold-type and underestimation for warm-type cases in the Local Data Assimilation and Prediction System (LDAPS) operational model (e.g., BIAS score was improved by 5%).

• 디지털콘텐츠학회 논문지
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• 제16권5호
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• pp.823-834
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• 2015

본 연구는 TV음악쇼 프로그램에서 가수 등의 공연자를 중심으로 배경 디스플레이로 사용되는 LED백드롭(backdrop)의 모션그래픽 이미지 조형구성을 분석하였다. 모션그래픽 LED 화면은 평면조형으로 구성되는데, 백드롭의 배경으로써의 기능이 공감각과 시각요소의 감성전달이라는 목표가 있는 것이므로, 감성전달 요소가 되는 컬러와 모션 방향과 속도에 대한 감성적 개념을 분석하였다. 감성전달 요소 중 그래픽 조형에 대한 분석으로는, 이를 이루는 형의 종류와 응용요소를 구분하고 그러한 요소들이 음악 곡의 전개인 인트로, 벌스, 브릿지, 코러스 부분에서 어떠한 모션 패턴과 배치가 이루어지는지 그리고 남성과 여성 공연자의 배경으로써 어떠한 디자인 특징이 있는지 연구하였다. 사례연구로, 모션그래픽 배경이미지 디자인이 활발히 이루어지는 지상파TV 3사의 청소년 대상 음악 순위프로그램을 대상으로 하였으며, 곡 전개에 따라 주로 디자인 되는 조형의 종류와 모션 패턴 그리고 모션 배치 유형을 도출하였다.

• 한국동물학회지
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• 제39권3호
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• pp.282-291
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• 1996

한국 휘파람새(Cettia diphone)의 song은 더입부인 whistle부와 종결부인 syllable 의 두 부분으로 구성되며, 그들의 song은 도입부에 나타나는 note의 수에 따라서 2개 이하인 것은 $\alpha$ song mode로 3개 이상으로 구성되어지는 song은 $\beta$ song mode로 분류된다. 개체와 지역에 따라서 차이는 있지만 한 개체가 부르는 전채 song에서 $\alpha$ song mode가 차지하는 비율은 약 55%(51.5-58.7%)이었다. $\alpha$ mode는 $\beta$ mode에 비하여 whistle 부분의 dominant frequency는 높은 반면에, syllable 부분을 구성하는 syllable들의 수는 상대적으로 적었다. 휘파람새의 mode Sequence는 그들의 출현 순서에 따라서 $\alpha$$\alpha$, $\alpha$$\beta$, $\beta$$\alpha$, $\beta$$\beta$의 네가지로 정의되었다. 휘파람새의 지리적 변이 그룹인 south-coastal 그룹 내의 개체군집인 완도와 제주도에 있어서 song mode와 mode Sequence는 그들의 텃세권의 방어를 위하여 역할을 수행할 수 있다는 가설을 세우고 이를 검증하기 위하여 playback 실험을 수행하였다. 실험의 결과 mode Sequence는 실험전 자연 상태에서 녹음되어진 song과 playback의 실험 중에 녹음되어진 song과는 실험이 실시된 두 지역 모두에 있어서 의미 있는 차이를 나타내었다. 특히, 완도의 군집에서의 결과는 song mode의 사용이 서식지, singing site, 텃세권의 공간적인 형태에 따라 영향을 받는다는 것을 나타낸다. 나아가 song을 통한 텃세권의 방어에 있어서 특정의 mode sequence는 song mode 자체보다 더 중요한 역할을 할 수도 있을 것으로 생각된다.

• 전기학회논문지
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• 제56권7호
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• pp.1224-1230
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• 2007

In this paper, we study the classification of defects at steam generator tube in nuclear power plant using eddy current testing (ECT). We consider 4 defect patterns of SG tube: I-In type, I-Out type, V-In type, and V-Out type. Through numerical analysis program based on finite element modeling, 400 ECT signals are generated by varying width and depth of each defect type. In order to improve the classification performance, we propose new feature extraction technique. After extracting new features from the generated ECT signals, multi-layer perceptron is used to classify the defect patterns. Through the computer simulation study, it is shown that the proposed method achieves 100% classification success rate while the previous method yields 91% success rate.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2008년도 제39회 하계학술대회
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• pp.986-987
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• 2008

This paper deals with the novel type DAVR(digital Automatic voltage Regulator) of the field control system for improving the response and efficiency. The proposed Hybrid type Synchronous Generator consists of permanent magnet which can generate the constant voltage with controlless and field winding. Using Buck-type PWM converter, the response can be improved in the proposed system. The proper operation of the proposed excitation system was verified through the design and experiments.

• Journal of Acupuncture Research
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• 제23권5호
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• pp.167-175
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• 2006

Objectives : We studied the effects of Radix Asteris herbal acupuncture solution (RAHAS) on the type I hypersensitivity. Methods : In vivo, we measured compound 48/80 induced active systemic anaphylactic shock, anti-DNP IgE induced passive cutaneous anaphylaxis (PCA) and acetic acid induced microvascular permeability using ICR mice. In vitro, we showed effects on cytotoxicity and ${\beta}$-hexosaminidase release from RBL-2H3 cells. Results : In vivo, RAHAS pretreatments at $BL_{13}$ and optional points inhibited active systemic anaphylactic shock induced by compound 48/80 and microvascular permeability increased by acetic acid. PCA was only inhibited by RAHAS pretreatments at $BL_{13}$. In vitro, RAHAS treatments inhibited ${\beta}$-hexosaminidase release. Conclusion : These results suggest that RAHAS may be beneficial in the prevention of type I hypersensitive inflammatory response.

• 대한기계학회:학술대회논문집
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• 대한기계학회 2004년도 춘계학술대회
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• pp.19-24
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• 2004

A number of creep data were collected and filed for type 316LN stainless steels through literature survey and experimental data produced in KAERI. Using these data, polynomial equations for predicting creep life were obtained for Larson Miller (L-M), Qrr-Sherby-Dorn (O-S-D) and Manson-Haferd (M-H) parametric methods. In order to find out the suitability for them, the relative standard error (RSE) and standard error of estimate (SEE) values were obtained by statistical process of creep data. The O-S-D parameter showed better fitting to creep-rupture data than the L-M or the M-H parameters, and the three parametric methods did not generate the large difference in the SEE and the RSE values.

• Korean Journal of Acupuncture
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• 제23권3호
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• pp.111-122
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• 2006

Objectives : We studied the effects of Scutellariae Radix pharmacopuncture solution (SRHAS) on the type 1 hypersensitivity. Methods : In vivo, we measured compound 48/80-induced active systemic anaphylactic shock using ICR mice and anti-DNP IgE-induced passive cutaneous anaphylaxis (PCA) using Sprague Dawley rats. In vitro, we showed effects on cytotoxicity and ${\beta}-hexosaminidase$ release from RBL-2H3 cells. Results : In vivo, SRHAS pretreatments (100% or 50%) at BL13 inhibited active systemic anaphylactic shock induced by compound 48/80. PCA was only inhibited by pretreatments of SRHAS at optional points. In vitro, $0.1{\sim}2%$ SRHAS treatments did not affect cell viability while ${\beta}$-hexosaminidase release was significantly inhibited. Conclusions : These results suggest that SRHAS may be beneficial in the inhibition of type I hypersensitive inflammatory response.

• 대한전기학회논문지:전기물성ㆍ응용부문C
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• 제48권5호
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• pp.333-338
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• 1999

Thin film inductors of $10 mm \times 10 mm$ with inner coil type of 14 turns were fabricated by sputtering, photo-masking, and etching processes. Their characteristics of impedances and annealing after were investigated. The properties of impedances of the thin film magnetic core inductors with inner coil type were improved by magnetic field annealing due to the removal of residual stress and the improvement magnetic properties of magnetic films. But the characteristics of frequency of the thin film magnetic core inductors were not improved by magnetic field annealing due to properties of the spiral pattern and inner coil type. The thin film magnetic core inductor annealed by uniaxal field annealing method showed an inductance of 1000 nH and resistance of$ 6 \Omega$ of 1 at 2 MHz.