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      • KCI등재

        참딱부리긴노린재의 발육, 산란, 포식에 미치는 온도의 영향

        김정환,김황용,변영웅,최만영,강은진,Kim, Jeong-Hwan,Kim, Hwang-Young,Byeon, Young-Woong,Choi, Man-Young,Kang, Eun-Jin 한국응용곤충학회 2012 한국응용곤충학회지 Vol.51 No.4

        참딱부리긴노린재의 생물학적 특성을 조사하기 위하여, 온도 $20{\pm}1$, $25{\pm}1$, $30{\pm}1$, $35{\pm}1$, $37.5{\pm}1$, $40{\pm}1^{\circ}C$, 습도 $80{\pm}10%$, 광주기 16:8(L:D)에서 발육실험을 실시하였다. 그 결과 알부터 성충우화까지의 발육영점온도는 $14.8^{\circ}C$, 유효적산온도는 399.1일도였다. $35^{\circ}C$에서 조사한 결과를 정리하면 다음과 같다. 알 기간은 5.6일, 부화율은 81.1%, 약충 기간은 14.3일(1령 3.2, 2령 2.2, 3령 2.7, 4령 2.7, 5령 3.6일)이었다. 암컷 성충의 수명은 33.8일, 산란기간은 29.2일이었다. 총 산란수는 111.2개, 하루 최대산란수는 14.8개(7일차)였다. 알과 약충은 $37.5^{\circ}C$까지만 발육하고 $40^{\circ}C$에서는 발육하지 못했으며, $40^{\circ}C$에서 총 산란수는 22.1개였다. 참딱부리긴노린재 1령, 3령, 5령, 성충의 담배가루이 번데기 하루 포식량은 각각 1.9, 7,3, 18.7, 29.5마리였다. Developmental characteristics of Geocoris pallidipennis were investigated at a constant temperature ($20{\pm}1$, $25{\pm}1$, $30{\pm}1$, $35{\pm}1$, $37.5{\pm}1$ and $40{\pm}1^{\circ}C$), under long day illumination 16:8 (L:D) and constant relative humidity ($80{\pm}10%$). From egg to adulthood, the lower developmental threshold and the effective accumulative temperature were $14.8^{\circ}C$ and 399.1 day-degree, respectively. The experimental results at $35^{\circ}C$ were as follows. The egg period was 5.6 days (hatchability: 81.1%) and the nymphal period was 14.3 days (1st: 3.2, 2nd: 2.2, 3rd: 2.7, 4th: 2.7, 5th: 3.6). Female longevity was 33.8 days and the oviposition period was 29.2 days. Total egg production was 111.2 eggs and the maximum daily egg production was 14.8 eggs (in 7th days). However, although some eggs and nymphs developed at $37.5^{\circ}C$, G. pallidipennis could not develop at $40^{\circ}C$, The total egg production at $40^{\circ}C$ was only 22.1 eggs. When G. pallidipennis was fed on Bemisia tabaci pupae, daily prey consumption by nymphs (1st, 3rd and 5th) and adults was 1.9, 7.3, 18.7 and 29.5, respectively.

      • SCOPUSKCI등재

        새로운 Cyanomethyl-1,3,5-triazine 유도체들의 합성

        김정환,김은주,Kim, Jung Hwan,Kim, Un Ju 대한화학회 1996 대한화학회지 Vol.40 No.11

        6-Cyanomethyl-1, 3, 5-triazine의 2번과 4번 위치에 amino, n-propylamino, isopropylamino, 및 anilino기가 도입된 새로운 유도체 4들의 합성은 6-chloro-1, 3, 5-triazine 유도체 2'들과 3들을 tert-butyl cyanoacetate로 반응시켜 얻었으며, 6-chloro-1, 3, 5-triazine의 2번과 4번 위치에 amino, n-propylamino, isopropylamino, 및 anilino기가 도입된 유도체 2'들과 3들은 2, 4, 6-trichloro-1, 3, 5-triazine 및 4, 6-dichloro-1, 3, 5-triazine 유도체 2들과 amine 유도체들로부터 합성되었다. New 6-cyanomethyl-1,3,5-triazine derivatives 4 containing amino, n-propylamino, isopropylamino and anilino groups at 2-and 4-position on the 6-cyanomethyl-1,3,5-triazine ring were prepared from 6-chloro-l,3,5-triazine derivatives 2' and 3 with tert-butyl cyanoacetate. The derivatives of 6-chloro-l,3,5-triazine 2' and 3 containing amino, n-propylamino, isopropylamino and anilino groups at 2- and 4-position on the 6-chloro-1,3,5-triazine ring were prepared from 2,4,6-trichloro-1,3,5-triazine as well as 4,6-dichloro-1,3,5-triazine derivatives 2 with amine derivatives.

      • KCI등재

        총채벌레 천적 으뜸애꽃노린재(Orius strigicollis)와 미끌애꽃노린재(Orius laevigatus)의 생물학적 특성 비교

        김정환,김황용,변영웅,김용헌,Kim, Jeong-Hwan,Kim, Hwang-Yong,Byoun, Young-Woong,Kim, Yong-Heon 한국응용곤충학회 2008 한국응용곤충학회지 Vol.47 No.4

        국내종인 으뜸애꽃노린재와 유럽종인 미끌애꽃노린재의 알, 약충 발육기간과 성충의 산란수, 수명, 포식량 및 포장밀도에서 증가량을 비교하였다. 으뜸애꽃노린재와 미끌애꽃노린재의 $15{\sim}30^{\circ}C$에서 알 부화율은 각각 $46.7{\sim}88.2%$와 $65.0{\sim}89.9%$였고, 알기간은 각각 $3.1{\sim}14.9$일과 $3.1{\sim}13.5$일이었다. 두 종의 약충 발육기간은 각각 $9.4{\sim}42.8$일과 $9.3{\sim}42.0$일이었고, 약충기간 생존율은 각각 $2.4{\sim}96.5%$와 $4.3{\sim}80.6%$였다. 두 종의 산란수는 15, 20, 25, 30, $35^{\circ}C$에서 각각 28.1, 107.9, 123.6, 127.3, 18.1개와 101.8, 218.6, 224.5, 219.5, 15.7개였고, 성충수명은 각각 63.4, 40.1, 22.1, 18.3, 11.0일과 70.6, 66.4, 32.6, 34.5, 7.3일로 으뜸애꽃노린재에 비해 미끌애꽃노린재의 산란수가 많고 성충수명은 길었다. 으뜸애꽃노린재와 미끌애꽃노린재의 온도와 일장에 의한 산란수는 $18^{\circ}C$, 16L:8D에서 각각 105.8개와 109.5개였고, 10L:14D에서 각각 1.0개와 63.0개였다. $25^{\circ}C$, 16L:8D에서 각각 142.4개와 191.5개였고, 10L:14D에서 각각 31.8개와 198.8개로 으뜸애꽃노린재는 $18^{\circ}C$, 10L:14D에서에 거의 모든 개체가 휴면하지만 미끌에꽃노린재는 휴면하지 않는다, 으뜸애꽃노린재와 미끌애꽃노린재의 꽃노랑총채벌레 2령 하루 포식량은 각각 14.3마리와 10.9마리이다. 겨울작형 시설재배 파프리카에서 으뜸애꽃노린재는 5월 중순부터 증가하기 시작하여 7월 상순에는 꽃당 1.8마리로 증가하였다. 미끌애꽃노린재는 3월 중순부터 증가하여 6월 상순에는 꽃당 6.6마리로 증가하는 과밀도 현상을 보였다. With the comparison of native Orius strigicollis (Poppius) to European O. laevigatus (Fieber), we investigated biological characteristics such as developmental period, fecundity, life span, predation ability, and augmentation after release. Experiments were carried out at five temperature condition, $15^{\circ}C\;20^{\circ}C,\;25^{\circ}C\;30^{\circ}C$, and $35^{\circ}C$. In the case of O. strigicollis, egg period was $3.1{\sim}14.9$ days (hatchability: $46.7{\sim}88.2%$), and developmental period of nymphs was $9.4{\sim}42.8$ days (survival rate: $2.4{\sim}96.5%$). Fecundity at each temperature was 28.1, 107.9, 123.6, 127.3, and 18.1, respectively. Life span of adults was 63.4, 40.1, 22.1, 18.3, and 11.0 days, respectively. In the case of O. laevigatus, egg period was $3.1{\sim}13.5$ days (hatchability: $65.0{\sim}89.9%$), and developmental period of nymphs was $9.3{\sim}42.0$ (survival rate: $4.3{\sim}80.6%$) days. Fecundity at each temperature was 101.8, 218.6, 224.5, 219.5, and 15.7. Life span of adults was 70.6, 66.4, 32.6, 34.5, and 7.3 days, respectively. In long-day condition (16L:8D), fecundity of O. strigicollis and O. laevigatus was 105.8 $(18^{\circ}C){\sim}142.4(25^{\circ}C)$ and 109.5 $(18^{\circ}C){\sim}191.5(25^{\circ}C)$, respectively. In short-day condition (10L:14D), fecundity of them was 1.0 $(18^{\circ}C){\sim}31.8(25^{\circ}C)$ and 63.0 $(18^{\circ}C){\sim}198.8(25^{\circ}C)$, respectively. Daily prey consumption of second instar Frankliniella occidentalis was 14.3 and 10.9, respectively. In greenhouse, density of O. strigicollis begins to increase from mid May and peaked about early July (1.8 individual/flower), while that of O. laevigatus begins to increase from mid March and peaked about early June (6.6 individual/flower).

      • KCI등재

        자극양식에 따른 청감각기억에서의 여러가지 부호화방식과 처리방식

        김정환,이만영,Kim, Jeong-Hwan,Lee, Man-Young 한국음향학회 1990 韓國音響學會誌 Vol.9 No.4

        본 연구는 청각조건과 입술운동 조건에서 나타나는 최근 및 접미효과가 동일한 기제에 의해 처리된 결과라는 Greene 와 Crowder(1984)의 수정된 PAS모형을 검증하기 위해 시행되었다. 최근 및 접미효과와 상호작용하는 것으로 보이는 음성적 특성을 실험조작하여 청각과 입술운동 조건에서 자음과 모음간에 차별적 회상효과를 보이는지 알아보았다. 이것은 Turner 등(1987)의 주장과 일치하는 결과이다. 한편, 잡음-입술운동 조건과 입술운동 조건의 마지막 계열위치에서 유의미한 회상 차이를 보이지 않았으므로, 잡음은 입술운동 정보에 대한 최근 효과에 영향을 주지 않고, 따라서 청각정보와 입술운동 정보는 다른 기제를 통해 부호화되는 것으로 보인다. This study investigated Greene and Corwder(1984)'s modified PAS model, according to which, in a short-term memory recall task, the recency and suffix effects existing in auditory and visual conditions are mediated by the same mechanisms. It also investigated whether the auditory information and mouthed information are encoded by the same codes. Though the experimental manipulation of the phonological nature, the presence of differential recall effect of consonant-and vowel-varied stimuli in auditory and mouthing conditions which has been supposed to interact with the recency and suffix effects, was investigated. The result shows that differential recall effect between consonant and vowel exists only in the auditory condition, but not in the mouthing condition. Thus, this result supported Turner.

      • SCOPUSKCI등재

        졸-겔법을 이용한 C3A의 생성에 미치는 C12A7과 OH기의 영향

        김정환,이전,한기성,Kim, Jang-Hwan,Rhee, Jhun,Han, Ki-Sung 한국세라믹학회 1987 한국세라믹학회지 Vol.24 No.1

        The effect of C12A7 and OH group on the synthesis of C3A by the sol-gel process using aluminum-sec-butoxide and calcium nitrate was studied. C3A by sol-gel method was compared with C3A obtained by the conventional method with respect to their reactivity of formation and crystal size. The sol-gel process for initial formation of C12A7 and C3A at lower temperature (1100, 1200$^{\circ}C$) was superior, but that for complete crystallization of C3A at higher temperature (1300, 1400$^{\circ}C$) was inferior to oxide mixture process. When heat treated under the atmosphere oxygen-free dried nitrogen eliminate the influence of OH group in C12A7, the reactivity of C3A from sol-gel sample incorporated OH group were poor, whereas that from oxide mixture sample showed remarkable effect. The poor crystallization of C3A at higher temperature is presumed to be due to the fact that incorporated OH group in C12A7 formed at lowr temperature might interrupt the diffusion of CaO to C12A7 to from C3A. The crystal size and the hydration characteristics of both C3A obtained by different processes exhibited almost the same results.

      • SCOPUSKCI등재

        새로운 BF<sub>2</sub>-Chelate 화합물들의 합성

        김정환,김영은,Kim, Jung-Hwan,Kim, Yeung-Eun 대한화학회 2004 대한화학회지 Vol.48 No.4

        $BF_2$-chelate 형태의 4-pyrimidylideneacetonitrile 유도체들은 4-pyrimidylideneacetonitrile 유도체들의 H-chelate 화합물들과 boron trifluoride diethyl etherate를 반응시켜 얻을 수 있었다. 또 이들 H-chelate 화합물들은 2-cyanomethylpyridine 유도체들에 여러가지 친전자체들 즉 4,6-dichloropyrimidine, 4,6-dichloro-2-methylpyrimidine, 4,6-dichloro-2-heptadecylpyrimidine, 4,6-dichloro-2-phenylpyrimidine, 4,6-dichloro-5-phenylpyrimidine 그리고 4,6-dichloro-2,5-diphenylpyrimidine을 친전자성 치환반응시켜 만들었다. 화합물에 대한 구조는 분광학적인 방법으로 분석하였다. 4-pyrimidylideneacetonitrile derivatives containing $BF_2$-chelate have been synthesized from H-chelates of 4-pyrimidylideneacetonitrile derivatives and boron trifluoride diethyl etherate. These H-chelates were prepared by the electrophilic substitution of 2-cyanomethylpyridine derivatives with electrophiles such as 4,6-dichloropyrimidine, 4,6-dichloro-2-methylpyrimidine, 4,6-dichloro-2-heptadecylpyrimidine, 4,6-dichloro-2-phenylpyrimidine, 4,6-dichloro-5-phenylpyrimidine and 4,6-dichloro-2,5-diphenylpyrimidine. Structures of the target molecules were identified by spectra methods.

      • 리사이클과 파렛트의 새로운 사업 전개에 도전

        김정환,Kim, Jeong-Hwan 한국파렛트컨테이너협회 2006 파렛트 뉴스 Vol.41 No.-

        본 보고서는 일본 마테리얼 플로(MATERIAL FLOW)월간지(2004년7월호)에 MF REPORT로서 기후플라스틱공업 주식회사가 플라스틱 파렛트의 Closed recycle전개에 도전한 내용을 번역한 것이다.-편집자 주-

      • KCI등재

        PLD를 이용한 강유전체(PZT, PST, PT)/YBCO 박막 구조의 제작과 전기적인 특성에 관한 연구

        김정환,이재형,문병무,Kim, Jung-Hwan,Lee, Jae-Hyung,Moon, Byung-Moo 한국전기전자재료학회 1998 전기전자재료학회논문지 Vol.11 No.7

        (PZT, PST, PT)/ YBCO structured have been grown on single crystal $LaAlO_3$ using in-situ Nb:YAG pulsed laser deposition technique. The optimum conditions of fabrication for high quality films have been established under various oxygen pressure. TBCO was used as a metallic electrode for polarizing ferroelectric thin fillms. Lattice mismatch of these materials were found to be with in 3%. As a result XRD patterns and rocking curves, (PZT, PST, PT)/ YBCO multiayered thin films on $LaAlO_3$ substrates showed preferred orientation to c-axis. For invastigation on electrical properties of ferroelectric thin films, remanent polaiztion $P_r$ and coercive field $E_c$ were measured for three samples. At each optimum condition, they showed the values of P_r=60 \mu C/cm^2 and E_c=240kV/ cm for PT, 30\mu C/cm^2 and 105kV/cm for PZT, 1.5\mu C/cm^2$ and 15kV/cm for PST. Frequency dependence of dielectric properties of ferroelectric thin fillms was also investigated. As a result, it showed the frequency dependence was relatively small in the range of 10Hz~10kHz.

      • SCOPUSKCI등재
      • KCI등재

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