Breeding of Tetraploid in Codonopsis lanceolata (Sieb. et Zucc.) Trautvetter by Colchicine Treatment

Kim,Ik-Hwan,Kim,Hag-Hyun,Hong,Eui-Yon,Yun,Jong-Sun,Yun,Tae,Hwang,Ju-Kwang,Lee,Cheol-Hee 한국자원식물학회 2003 Plant Resources Vol.6 No.3

Present studies were carried out to produce tetraploid plants by colchicine treatment using seeds, seedlings and shoot tips of Codonopsis lanceolata. Three tetraploid plants of C. lanceolata were produced from seeds which absorbed 0.1 % colchicine solution for 12 hours, and 0.5% colchicine solution for 1 and 6 hours from seedlings, respectively. But tetraploid was not produced from shoot tips treated by colchicine solution. Compared to diploid, tetraploid plants had larger stomata, but less number of stomata. Fresh weight of tetraploid plants was 1.4∼3.6 times heavier than diploid plants.

체육〔무도〕관련학과 학생들의 대학생활에 대한 전망과 과제

김창모,진중의,장경태,김태균,김공 龍仁大學校 武道硏究所 2011 武道硏究所誌 Vol.22 No.1

이 연구에서는 체육․무도 관련학과 학생들을 대상으로 심층면접을 실시하여 이들의 대학생활에 대한 전반적인 문제점을 심층적으로 규명하는데 목적이 있다. 이러한 목적 달성을 위해서 전라남도 D대학교 체육관련 학과 학생들을 대상으로 비확률 표집방법 중 하나인 유목적 표집(purposeful sampling)에 의해 2학년부터 4학년까지 각 학년별 4명씩 총 12명으로 선정하였는데 다음과 같은 결론을 얻었다. 첫째, 체육․무도 관련학과 학생들의 대학생활에는 선․후배 간 체벌문화가 현재까지도 잠재되어 있음을 알 수 있었다. 이에 학생들은 선배들의 올바른 역할과 선․후배 간의 단합과 화합을 위한 매개체 요인이 필요하다는 의견을 보였다. 둘째, 체육․무도 관련학과와 같은 상․하 관계가 뚜렷한 집단에서는 선․후배간의 의사소통이 더욱 필요하지만 원활히 이루어지지 않는 것으로 나타났다. 또한 원활한 의사소통을 위해 다양한 개선을 요구하는 것으로 나타났다. 셋째, 체육․무도 관련학과 학생들은 대학생활에서 수업관련 문제점에 대해 가장 큰 비중을 두고 있었고 개선에 대한 욕구를 보였다. 특히 체육․무도 관련학과 전공수업에서는 무엇보다도 교수의 지도능력과 현실성 있는 교과과정 개설을 원하는 것으로 나타났다. 넷째, 체육관련 전공자들은 보편적으로 타 전공자들에 비해 취업의 기회 및 관련분야가 상대적으로 적을 수도 있다. 이러한 사회현실은 이들로 하여금 심리적인 불안을 갖게 하였으며 체육관련학과를 선택한 자체에 대한 불만족이기 보다는 체육․무도 관련 전공을 이수하고 나와서 안정적인 직장으로 연결되지 못하는 사회 제반적 여건에 대한 문제점을 보였다. 따라서 체육․무도 관련학과 학생들은 취업관심분야에 대한 업무능력․관련지식 등의 자질과 조건을 갖추기 위해 큰 관심을 가지고 있다. 취업정보 및 자격증 취득 등 취업을 위한 사전준비도 철저히 하고 있는 것으로 나타났다.

Breeding of Tetraploid in Platycodon grandiflorum (Jacq.)A. DC. by Colchicine treatment

Kim,Ik-Hwan,Kim,Hag-Hyun,Hong,Eui-Yon,Yun,Jong-Sun,Yun,Tae,Hwang,Ju-Kwang,Lee,Cheol-Hee 한국자원식물학회 2003 Plant Resources Vol.6 No.3

Present studies were carried out to produce tetraploid plants by colchicine treatment using seeds, seedlings and shoot tips of Platycodon grandiflorum in Campanulaceae. The most successful colchicine treatment for tetraploid production in P. grandiflorum was soaking treatment using 0.01 and 0.5% colchicine solution for 1 hour and 12 hours, respectively. Morphological characteristics of both diploid and tetraploid were similar, but tetraploid plants had more leaves. Compared to diploid, tetraploid had the larger stomata, but less number of stomata. Fresh weight of tetraploids was 20∼40% heavier than that of diploid.

한국 · 대만 유도국가대표선수들의 한팔 업어치기 동작 시근 활성도 비교 분석

김의환(Eui-Hwan Kim),안병근(Byung-Keun Ahn),김성섭(Sung-Sup Kim),조준명(Joon-Myoung Cho),지준안(Chun-An Chi),진종현(Jong-Hyun Jin),김지태(Ji-Tae Kim) 한국생활환경학회 2011 한국생활환경학회지 Vol.18 No.2

The purpose of this study was to compare and analyze the electromyograpic activity between Korean and Taiwanese of Ippon-Seoinage (one-armed shoulder throw) as Tokuinage (favorite and major technique) in Judo. The subject (Tori, attacker), who was 4 Korean and Taiwanese representative judoists from 2007 to 2009 years, respectively, Uke (defender) was a Judo-doll made by Kim, Eui-hwan etc. (2007), whole body of judo-doll was fixed, upper body was flexible 35 degree forward and backward, lower was 15 degree, was used to muscles activities measured by surface-electrode & electromyography. Subject performed 5 successful trials respectively, with parter (Uke) was resistance (R-0%) of judo-doll. Muscle activities were obtained from the electromyography analysis. Muscle activities in all phase, Taiwanese were lower than Korean, right Bicep, Trapezius, Tibialis muscles in Kuzushi phase, right Bicep, right Trapezius, left Rectus abdominus in Tsukuri and Kake phase, different between Taiwanese and Korean were signify (p < .5).

일측성 질폐쇄 및 동측 신장 무발생을 동반한 중복자궁 2예

윤일영,여소진,김형문,김정식,김태희,이해혁,남계현,이권해,김준모,김민의 순천향의학연구소 2004 Journal of Soonchunhyang Medical Science Vol.10 No.2

Uterus didelphys with unilateral obstructed hemivagina and ipsilateral renal agenesis usually presents after menarch with progressive abdominal pain during menses secondary to hematocolpos, and indeed a very rare congenital anomaly due to Mullerian duct malformation. An accurate and prompt diagnosis is of importance to permit treatment and to assure the future fertility of the patient. Pelvic ultrasound, physical examination and pelvic MRI established a diagnosis of hematometracolpos secondary to uterus didelphys with unilateral imperforate hemivagina. An incision in the vaginal septum allowed drainage of the hematocolpos, providing relief of the patients symptoms. We report two case of uterus didelphys with obstructed hemivagina with brief review of the literature.

수학불안 해소를 중심으로 한 초등학교 수학교육의 발전방안 : on the Resolution of Mathematics Anxiety

김의태,고석구,선우하식 建國大學校 自然科學硏究所 2000 建國自然科學硏究誌 Vol.11 No.-

The purpose of this paper is to investigate the effect of divided-page teaching method on the reduction of Mathematics. Anxiety and improvement of mathematics education in elementary schools. We have chosen two groups having equal potential on mathematics. We applied the divided-page method to one group and ordinary teaching method to the other group in 4 weeks (4 hours a week). It appears that the divided-page method reduces the Mathematics Anxiety and it is very efficient teaching method to improve the effect of Mathematics education.

N₂O 가스로 열산화된 게이트 산화막의 전기적 특성

김태형,김창일,최현식,장의구,서용진,이철인 중앙대학교 생산공학연구소 1992 생산공학연구소 논문집 Vol.1 No.2

미래의 ULSI 소자의 게이트 산화막으로 이용하기 위하여 N₂O 가스 분위기에서 기존의 전기로를 이용한 실리콘의 열산화에 의해 N₂O 산화막을 형성하였고, MOS 소자를 제작하여 전기적 특성을 고찰하였다. 900℃에서 90분간 산화한 N₂O 산화막의 경우, 플랫밴드 전압(??), 고정전하밀도(??)와 플랫밴드 전압의 변화량(??)은 각각 0.81 [V], ?? [??]와 80∼95[mV]를 나타내었다. N₂O 산화막의 전기전도기구는 저전계 영역에서는 Fowler-Nordheim 터널링, 고전계영역에서는 Poole-Frenkel 방출이 지배적으로 나타났고, 절연파괴전계는 16 [MV/㎝]로 높게 나타났다. 따라서 N₂O 산화로 형성된 게이트 산화막이 ULSI 소자의 게이트 유전체로 응용이 가능하리라 생각된다. In order to applicate gate insulators in future ULSI devices, electrical properties was investigated in MOS device with N₂O oxide grown by thermal oxidation using conventional furnace in N₂O ambient. For the sample oxidized at 900℃ for 90 min, Flatband voltage(??), fixed charge density(??) and shifts of flatband voltage(??) after BTS was obtained 0.81 [V], ?? [??] and 80∼95[mV], respectively. The dominant conduction mechanism of N₂O oxide appeared to be Fowler-Nordheim tunneling in the low electrical field region(4-6 [MV/㎝]) and to be Poole-Frenkel emission in the high electrical field region( 9 [MV/㎝] or above). Dielectrics breakdown fields of N₂O oxide appeared about 16 [MV/㎝]. These results suggest that the N₂O oxides is a promising candidate for ultrathin gate dielectric for MOS ULSI applications.

CAM-Shift 알고리즘을 이용한 MPEG-4 Visual의 VOP(Video Object Plane) 추출

황의성,정재진,김태형,김두영 동아대학교 정보기술연구소 2006 情報技術硏究所論文誌 Vol.14 No.1

MPEG-4 for an object base coding after extracting the region from image, the coding for a real-time requirements is quick and must be accurate. The object crisis algorithms of existing calculation quantity are many and with image transformation or video conferencing system to same real-time application they are not suitably. The object real-time tracking it tried to apply the CAM-Shift algorithm which is possible from the dissertation which it sees consequently. Tracking the object which it moves or wants the VO where (Video Object) tracking the user wants in bounding box form defines the object where is started. Tracking the object of after uses a CAM-Shift algorithm and are extracted and the VOP with the VO which it is composed. It defines one bounding box with the method which is proposed consequently about lower only one VOP there to be it will be able to compose, it becomes.

유도전방낙법의 운동학적 특성 분석[1]

김의환,김지태 한국운동역학회 2002 한국운동역학회지 Vol.12 No.2

본 연구의 목적은 유도 경력이 2년(2~3단) 이상인 유단자 5명을 대상으로 전방낙법 동작시 3차원 영상 분석법을 이용하여 운동학적 변인의 특성을 규명하는데 그 목적이 있다. 운동학적 변인은 시간 · 거리 변인들이었으며, 각 변인별 평균치와 표준편차를 구하여 유도 전방낙법 동작의 운동학적 변인을 분석한 결과 다음과 같은 결론을 얻었다. 전방낙법 동작시 손목각은 낙법직전자세에서 낙법자세까지는 신전되었고, 낙법자세에서 낙법직후자세까지는 굴곡되는 패턴을 보였으며 손목의 좌 · 우각은 변위차이를 보였다. 팔꿈치각은 준비자세에서 낙법직후자세까지 굴곡되는 패턴이었고, 발목각은 준비자세에서 반동자세까지는 굴곡되었으며 점핑자세에서 변환자세까지 신전, 낙법직전자세와 낙법직후자세에서는 굴곡 패턴이었다. 매트와 어깨와의 거리(높이)는 낙법직전자세에서 32.2cm, 낙법자세에서는 18.3cm, 낙법직후자세에서는 20.5cm 이었다. 매트와 엉덩이와의 거리(높이)는 낙법직전자세에서 48.0cm, 낙법자세에서는 23.4cm, 낙법직후자세에서 30.6cm이었다. The purpose of this study was to analyze kinematic variables of a Mae-ukeni (forward breakfall :MU) in Judo throrgh 3-D image analysis with five Judoka with over 2 year's career values and the standard deviations for each variable were obtained to analyze kinematic variables of a MU in Judo. From the data analysis and discussion, the following conclusions were drawn : 1) Posture variables : The angles of wrists during right before Mae-ukemi (RBU) were extended from the just MU position(MUP) and flexed from in the right after MU(RAU), and there was a difference in the displacement between the angles of the right and left wrists. The angles of elbows were flexed in the ready position from in the RAu. The angles of ankles were flexed from the ready position to that down position, extended from the down position to that transition, and flexed from the transition positiont to that RAU. 2) Distance variables : The distance height between the mat and shoulders in the RBU(32.2cm) to in the MUP(18.3cm) and in the RAU(20.5cm). during that height between the mat and hips in the RBU(48.0cm) to in the MUP(23.4cm), and in the RAU(30.6cm).

민속씨름 밧다리후리기 발휘 시 시간·거리·중심변인의 3차원 키네매틱분석 : Korean Traditional Wrestling

김의환,김태완 한국운동역학회 2001 한국운동역학회지 Vol.11 No.3

The purpose of this study was to analyze the posture variables of Batdari-Hurigi in Ssireum(Korean Traditional Wrestling) with three dimensional analysis technical methods. The subject of the experiment was a best Ssireum player who has been playing in professional Ssireum team and Batdari-Hurigi is his outstanding special ability. Temporal, Distance and Center of gravity variables, the mean values and the standard deviation for each variables were obtained and used as basic factors for examining characteristics of Batdari-Hurigi motion. The results of this analysis are the following: 1) Temporal variables The total time elapsed(TE) of Batdari-Hurigi motion is 1.33 second on average. TE during 1st phase was 0.85 sec(63.9%), TE during 2nd phase was 0.25 sec(18.8%), TE during 3rd phase was 0.23 sec(17.3%). 2) Distance variables Right foot showed a big step between initial event and pulling event and had a decreasing pace from pulling event to falling event. Left foot also showed a big step from intial event to pulling event, however, it had regular pattern of pace from pulling event to falling event. 3) Center of gravity(COG) variables Transverse axis(Sagital Axis) showed a big movement leftward. Antero-posterior axis(Frontal Axis) moved forward from initial event to falling event, which is a typical characteristic of offensive pattern Longitudinal axis was situated 77.5cm 94cm high from the ground from initial event throughout falling event.