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2001 세계 쥬니어 레슬링 선수권 대회 그레코로만형 경기 선발전 기술분석
한명우,전흥수 창원대학교 체육과학연구소 2002 경남 체육연구 Vol.7 No.2
본 연구의 목적은 2001년 세계 쥬니어 레슬링 선수권 대회 그레코로만형 경기 선발전 각 체급별 경기에서 사용되었던 기술 내용과 득점 빈도를 분석하는 것으로써, 스탠드와 그라운드의 두가지 기술 유형간에 있어 보다 높은 득점률을 나타내는 것은 어떤 것인지, 또 체급별로는 어떤 유형의 기술 구사가 많은지를 규명하는 데 구체적인 그 목적이 있다. 이러한 연구 목적을 달성하기 위하여 이 대회에 출전한 선수들의 각 체급별 결승 및 준결승 경기 내용 중 스탠드 기술, 그라운드 기술, 옆굴리기 성공 후 기술 시도시의 성공·실패율(그라운드시)을 조사한 결과 다음과 같은 결론을 얻었다. 첫째, 스탠드 기술(팔끌기, 허리태클, 엉치걸어넘기기, 돌아빠지기, 앞목잡아돌리기, 중심무너뜨리기, 안아넘기기, 업어넘기기) 가장 많이 시도된 기술은 팔끌기(69회)기술이었고, 가장 적게 시도된 기술은 안아넘기기(21회)기술이었다. 가장 높은 성공률을 보인 기술은 팔끌기(24.6%)이었고, 가장 낮은 성공률을 보인 기술은 앞목잡아돌리기와 안아넘기기(4.0%)로 나타났다. 팔끌기 기술이 그레코로만형 경기 스탠드기술에서 가장 영향을 많이 주는 기술로 나타났다. 둘째, 그라운드 기술 (옆굴리기, 측면들기, 가로들기, 넬슨, 앞목잡아돌리기)중 가장 많이 시도된 기술은 옆굴리기(65회)이었고, 가장 적게 시도된 기술은 넬슨(15회)이었다. 가장 높은 성공률을 보인 기술은 앞목잡아돌리기(33.3%)이었고, 가장 낮은 성공률을 보인 기술은 측면들기(9.0%)로 나타났다. 그라운드기술에서는 옆굴리기 기술이 경기에 가장 큰 영향을 준 것으로 나타났다. 셋째, 그라운드에서 옆굴리기 기술 성공 후 연결 기술 시도 및 성공률 옆굴리기 기술 성공후 가장 많이 시도한 기술은 측면들기(9회)기술이었고 가장 높은 성공률을 보인 기술은 카운터로 연결되는 기술과 넬슨(50.0%)으로 나타났다.
金政起,吳興度,全潤漢 金烏工科大學校 1983 論文集 Vol.4 No.-
The polycrystalline materials of ?? (χ=0.1, 0.2, 0.3 and 0.4) have been prepared by direct synthesis of the magnetites with germanium in order to study their crystallographic changes. X-ray studies at room temperature show that all the crystals are of single phase and its structures are cubic spinel. The calculated lattice constants of the samples from the Nelson-Riley function dependence of lattice constants of the samples increase from 8.3967 A TO 8.4014A with increasing Ge concentration and it obeys Vegard`s rule. The inter-ionic distance of the materials are computed with obtained constants of the samples.
Differences in sex pheromone communication systems of three species in genus Adoxophyes
Chang Yeol Yang,Kyeung Sik Han,Heung Yong Jeon,Taek Jun Kang 한국응용곤충학회 2008 한국응용곤충학회 학술대회논문집 Vol.2008 No.10
We tested differences in female pheromone production and male response in three species of the genus Adoxophyes in Korea. Females of all three species produced mixtures of Z9-14:OAc and Z11-14:OAc as major components but in quite different ratios. The ratio of Z9-14:OAc and Z11-14:OAc in pheromone gland extracts was estimated to be 100:198 for A. honmai, 100:23 for A. orana, and 100:3880 for A. sp. Field tests showed that males of each species were preferentially attracted to the two-component blends of Z9-14:OAc and Z11-14:OAc mimicking the blends found in pheromone gland extracts of conspecific females. The effects of minor components identified in gland extracts on trap catches varied with species. Addition of 10me-12:OAc or E11-14:OAc to the binary blend of Z9-14:OAc and Z11-14:OAc significantly increased captures of A. honmai males, whereas E11-14:OAc exhibited a strongly antagonistic effect on catches of A. sp. males. Moreover, Z9-14:OH or Z11-14:OH added to the binary blends increased attraction of male A. orana but not A. honmai and A. sp. males, suggesting that these minor components, in addition to the relative ratios of the two major components, play a noteworthy role in reproductive isolation between Adoxophyes species in the southern and midwestern Korea where these species occur sympatrically.
Self-similarity in the structure of coarsened nanoporous gold
Jeon, Hansol,Kang, Na-Ri,Gwak, Eun-Ji,Jang, Jae-il,Han, Heung Nam,Hwang, Jun Yeon,Lee, Sukbin,Kim, Ju-Young Elsevier 2017 Scripta materialia Vol.137 No.-
<P><B>Abstract</B></P> <P>Nanoporous gold (np-Au) samples of ligament sizes 68.6, 248.6, 462.9, and 710.9nm are prepared by heat treatment, and representative volumes are reconstructed by focused ion beam (FIB) tomography. The increase in relative density by thermal coarsening is not pronounced. We analyze the distribution of ligament size, surface-to-volume ratio, and scaled connectivity density for coarsened np-Au, revealing that np-Au coarsens in a self-similar way. The measured activation energy for thermal coarsening supports that it is accomplished by surface diffusion of Au.</P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>
A Study on the Measuring Gas Temperature by Ultrasonic Waves
Heung-shin Jeon,Jong-Han Lim 한국자동차공학회 2001 한국자동차공학회 Symposium Vol.- No.-
Measuring method of gas temperature with ultrasonic wave is to get the temperature from the sound velocity of sound wave when it goes through a substance which looks upon the ideal gas. It is because of the fact that the temperature of ideal gas is the function of only sound velocity. Formerly the measurement of gas temperature by sound wave was used to determine from the transit time that it was measured directly when the sound wave goes through a constant distance in gas. This study has been used a principle that sound velocity is estimated with the frequency when the phase difference between used a principle that sound velocity is estimated with the frequency when the phase difference between ultrasonic transmitter and ultrasonic receiver is single wavelength as well. But this method is different at the point that it is used ultrasonic wave as carrier wave and is transferred it to frequency modulation. In this study, the effect on a length between the ultrasonic transducers is considered, and being used a wind channel with heater and a blower, the variation of temperature is observed in accordance with air velocity and angle between direction of face of ultrasonic transducers and direction of gas flow.<br/> Conclusions are as follows. Ultrasonic wave by frequency modulation method can measure the gas temperature safely because it can prevent noise from surround. and is amplified a constant frequency. Gas temperature by ultrasonic wave is little effect on the distance of sensors. air velocity, angle of between gas flow direction and face direction and face direction of sensors in this experimental range. Opposite angle of sensors is little effect on the temperature below 30° , but temperature measurement of ultrasonic wave is impossible if it is over 30° . But this problem may virtually have relevance to directivity of ultrasonic wave.<br/>
PCR-RFLP Identification of Three Major Meloidogyne Species in Korea
Hyerim Han,Cho, Myoung-Rae,Jeon, Heung-Yong,Lim, Chun-Keun,Jang, Han-Ik Korean Society of Applied Entomology 2004 Journal of Asia-Pacific Entomology Vol.7 No.2
Partial mitochondrial DNA from single female or second stage juvenile (J2) of root-knot nematodes was amplified by PCR (polymerase chain reaction), and the further analysis by RFLP (restriction fragment length polymorphism) provided discriminatory profiles useful for three major Meloidogyne species, M arenaria, M incognita, and M hapla, in Korea. The nematode DNA was extracted individually in nuclease-free water. The sizes of PCR product (1.7 kb and 500 bp) and restriction patterns obtained from single female nematodes were consistent with the results from single J2 within the same species. M. hapla was easily differentiated from the two other root-knot nematode species by the size of the PCR products. A fragment of 500 bp was generated from M. hapla, while M. arenaria, and M. incognita produced an 1.7 kb fragment in PCR amplification. M arenaria could be distinguished from M. incognita by analysis of restriction enzyme digestion with HinfI or Alu I. Hinf I had no digestion site in mitochondrial DNA of M. arenaria; however, it generated 1.3 kb and 400 bp fragments in M. incognita. Alu I digestion resulted in 1 kb, 460 bp, and 250 bp fragments in M. arenaria, but showed different digestion patterns in M. incognita by generating 800 bp, 460 bp, 250 bp, and 150 bp fragments.