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김현주,배순도,이건휘,박성태,박정규,Kim, Hyun-Ju,Bae, Soon-Do,Lee, Geon-Hwi,Park, Sung-Tae,Park, Chung-Gyoo 한국응용곤충학회 2007 한국응용곤충학회지 Vol.46 No.1
2001부터 2003년까지 영남지방에서 완두콩바구미는 완두의 꽃과 협에서 쉽게 관찰되었으나, 콩에서 관찰되지 않았다. 지역별 완두꽃에서 완두콩바구미의 발생수는 밀양에서 약 20마리로 가장 많았으며, 다음은 양산(15마리), 사천(14마리) 및 창녕(13마리) 순서였으며, 포항에서 3마리로 가장 적었다. 한편, 완두 협에서 완두콩바구미의 발생수는 통영에서 192마리로 가장 많았으며, 다음은 창녕(171마리), 사천(157마리) 및 창원(138마리)의 순서였으며, 포항에서 12마리로 가장 낮아 완두꽃에서의 결과와 같은 경향이었다. 약종별 1회 및 2회 약제살포 후 완두 협의 수확시기에 따른 완두콩바구미의 발생수는 5월 30일 수확구에서 차이가 있었으나, 6월 5일 수확구에서 차이가 없었다. 또한 약종별 1회 및 2회 약제살포 후 완두 립의 피해수는 5월 30일 수확구에서 차이가 있었으나, 6월 5일 수확구에서 차이가 없었다. 따라서 약종별 살포횟수에 따른 방제효과는 5월 30일 수확구에서 차이가 있었으나, 6월 5일 수확구에서 유의한 차이 없이 약 96% 이상의 방제가를 나타내었다. Pea weevil was easily observed in the flower and pod of garden pea, but not observed in soybean at various locations in Yeongnam district through 2001 to 2003. Number of pea weevil observed in pea flower was the highest at Milyang (20), followed by Yangsan (15), Sacheon (14) and Changnyong (13), and was the lowest at Pohang (3). On the other hand, number of pea weevil observed in pea pod was the highest at Tongyeong (192), followed by Changnyong (171), Sacheon (157) and Changwon (138), and was the lowest at Pohang (12) which showed simila. tendency with the result of pea flower. Number of pea weevil occurrence observed in pea pod after one and two times applications of Insecticides in pea field were different at harvest day of 30th May while were not significantly different at harvest day of 5th June. Likewise, number of pea pod damage after one and two times applications of insecticides were different at harvest day of 10th May while was not different at harvest day of 5th June. Thus, control efficacies of insecticides according to application times against pea weevil showed very high with above 95% at harvest day of 6th June while showed variable control efficacies at harvest of 30th May.
자가동영상을 활용한 디브리핑 학습의 효과: 흡인간호 실습교육을 중심으로
김현주,Kim, Hyun-Ju 한국가정간호학회 2015 가정간호학회지 Vol.22 No.1
Purpose: This study was conducted to identify the effects of a suction care self video-based debriefing-assisted learning in the fundamentals of nursing practice for nursing students on clinical performance, self-efficacy and problem-solving process. Methods: A nonequivalent control group non-synchronized design study was used and included 97 junior nursing students at P University as participants, 48 of whom were assigned to the experimental group, and 49 of whom were assigned to the control group. The outcome measurements were clinical performance for suction care, self-efficacy, and the problem-solving process. Results: The scores of clinical performance were 23.75 in the experimental group who used the materials and 21.55 in the control group, and the difference was statistically significant (p<.000). Self-efficacy was 4.30 in the experimental group and 4.18 in the control group, which was a statistically significant difference (p=.000), and the pre-to-post differences of self-efficacy was statistically significant as well (p<.001). However, there were no significant differences in the pre-to-post differences of the problem-solving process (p<.802). Conclusions: Self video-based debriefing-assisted learning may be more effective in enhancing clinical performance and self-efficacy than that of conventional practice. Whether self-efficacy will contribute to enhanced learning motivation for nursing students needs further examination.
스핀코팅법에 의해 제조되어진 Yttrium이 도핑된 ZnO 막의 특성
김현주,이동윤,송재성,Kim Hyun-Ju,Lee Dong-Yun,Song Jae-Sung 한국전기전자재료학회 2006 전기전자재료학회논문지 Vol.19 No.5
Y doped zinc oxide (YZO) thin films were deposited on F doped $SnO_2$ (FTO) glass substrate by sol-gel method using the spin-coating system. A homogeneous and stable solution was prepared by dissolving acetate in the solution added diethanolamine as sol-gel stabilizer. YZO films were obtained after preheated on the hot-plate for 5minute before each coating; the number of coating was 3 times. After the coating of last step, annealing of YZO films performed at $450^{\circ}C$ for 30 minute. In order to confirming of a ultraviolet ray interruption and down-conversion effects, optical properties of YZO films, transmission spectrum and fluorescent spectrum were used. Also, for understanding the obtained results by experiment, the elestronic state of YZO was calculated using the density functional theory The results obtained by experiment were compared with calculated structure. The detail of electronic structure was obtained by the discrete variational Xa (DV-Xa) method, which is a sort of molecular orbital full potential method. The density of state and energy levels of dopant element were shown and discussed in association with optical properties.
염료감응형 태양전지의 상대전극 재료로서 탄소나노튜브의 전기화학적 특성
김현주,이동윤,구보근,이원재,송재성,이대열,Kim, Hyun-Ju,Lee, Dong-Yun,Koo, Bo-Kun,Lee, Won-Jae,Song, Jae-Sung,Lee, Dae-Yeol 한국전기전자재료학회 2004 전기전자재료학회논문지 Vol.17 No.10
Studies on porous oxide electrode, dye and electrolyte for dye-sensitized solar cells have been intensively carried out until now. However, counter electrode have not been much studied so far. Accordingly, it is needed to investigate new counter electrode materials with superior catalyst property and to substitute for Pt electrode. In this case, carbon nano-tubes (CNTs) are one of alternatives for counter electrodes as following merits: low resistivity, excellent electron emission property, large surface area and low cost due to development of mass production technique. Such advantages gave us to select multiwalled CNTs (MWCNT) as counter electrode for dye-sensitized solar cell. Also, cyclic voltammetry and impedance spectroscopy were used to investigate electrochemical properties of both CNT electrode and Pt electrode. It was found that sheet resistance of CNT electrode was similar to that of Pt electrode, also, electrochemical properties of CNT electrode was superior to that of Pt electrode on the basis on the measurement of CV and impedance spectrum. It was found that CNT is likely to be a very promising electrode material for dye solar cells.
김현주,Kim, Hyun-Ju The Korea Institute of Information and Commucation 2019 한국정보통신학회논문지 Vol.23 No.10
의사소통은 간호사가 대상자와의 치료적 관계 및 다양한 직종간의 협력관계를 형성하여 성공적인 간호중재를 이끄는데 있어 중요한 요소이며 이에 간호대학생들에게 효과적인 의료인 간의 의사소통 능력 함양 할 수 있는 의사소통 교육프로그램을 개발하고 그 효과를 분석하여 간호교육 전략을 모색하고자 하였다. 연구대상은 P 대학교 간호학과 4학년에 재학중인 학생 54명이며, 연구결과, 대상자의 의사소통명확성 (t=-7.75, p<.001)과 셀프리더십 (t=-4.43, p<.001)은 유의한 차이가 있었고, 의사소통 만족도는 교육 후에 점수가 증가하였으나 유의한 차이가 없었다 (t=-1.22, p=.226). 결론적으로 SBAR를 활용한 학제간 의사소통 교육프로그램은 간호대학생의 의사소통명확성과 셀프리더십에 긍정적인 효과가 있으며 다양한 시나리오의 개발과 반복 훈련을 할 수 있는 지속인 교육개발이 필요하다. Communication is an important factor for nurses to lead successful nursing interventions by establishing therapeutic relationships with the subjects and cooperative relationships between the various occupations. The purpose of this study was to develop a communication education program to nurse college students to improve communication skills among medical professionals and to analyze the effects of the program. The subjects of this study were 54 students in the 4th grade of P nursing. The results of this study showed that there was a significant difference between the subjects' communication clarity(t=-7.75, p<.001) and self-leadership (t=-4.43, p<.001). Satisfaction with communication increased after the training but there was no significant difference (t=-1.22, p=.226). In conclusion, communication program using SBAR has a positive effect on clarity of communication and self-leadership of nursing students, and it is necessary to develop continuous education that can develop various scenarios and repeat training.
Trichoderma koningii ATCC 26113에서 분리된 xylanase II의 작용양상과 활성부위
김현주,강사욱,하영칠,Kim, Hyun-Ju,Kang, Sa-Ouk,Hah, Yung-Chil The Microbiological Society of Korea 1994 미생물학회지 Vol.32 No.4
Xylan과 관련 다당류 (xylotriose, xylotetraose, arabinoxylotriose)에 대한 Trichoderma koningii ATCC 26113에서 분리된 xylanase II의 작용양상은 xylanase II가 endo-enzyme이고 transxylosidation의 활성을 가지고 있다고 보여진다. Xylanase II에 의해 형성된 반응산물을 $^1HNMR$ 분광법으로 분석한 결과는 본 효소에 의해 얻어진 xylooligosaccharides의 가수분해산물은 모두가 ${\beta}$-1,4-xylosidic linkage만을 가지고 있는 것으로 판명되었다. 본 효소를 iodoacetamide로 화학적으로 변형시켰을 때 효소 mole당 cysteine 잔기가 두 개가 활성에 필요한 것으로 보여졌으며, N-bromosuccinimide 로 처리하였을 때는 활성부위에 tryptophan 잔기가 여덟 개 존재하는 것으로 판명되었다. The action mode of xylanase II from Trichoderma koningii ATCC 26113 on xylan and related oligosaccharides (xylotriose, xylotetraose, and arabinoxylotriose) indicated that xylanase II is an endo-enzyme and also has trans-xylosidase activity. The $^1HNMR$-NMR studies of the reaction products formed by xylanase II revealed that all the hydrolysis products of xylooligosaccharides by the enzyme have only ${\beta}$-1,4-xylosidic linkage(s). Chemical modification of the enzyme with iodoacetamide showed that two cysteine residues per molecule of the enzyme was essential for the activity. Modification of the enzyme with N-bromosuccinimide demonstrated that four of the eight tryptophan residues were involved in its active site.
비우식성 치경부 병소와 5급 와동 수복물이 치주조직에 미치는 영향
김현주,김성조,최점일,이주연,Kim, Hyun-Joo,Kim, Seong-Jo,Choi, Jeom-Il,Lee, Ju-Youn 대한치주과학회 2009 Journal of Periodontal & Implant Science Vol.39 No.1
Purpose: The non-carious cervical lesion(NCCL) is a loss of tooth structure at the neck of affected teeth that is unrelated to tooth caries. The reported prevalence of NCCL varies from 5% to 85%. Prevalence and severity of lesions have been found to increase with age. They are becoming more significant as people live longer and become more aware of the importance of oral health. The purposes of this study were first, to examine the periodontal conditions associated with NCCL, and second, to investigate the clinical effects of class V restorations of NCCL on periodontal tissues. Materials and methods: The sample size was 982 teeth of 50 subjects(25 male, mean age $52{\pm}7$) who were seen at the Department of Periodontology, Pusan National University Hospital. At the baseline examination, clinical periodontal parameters were measured. After the initial examination, 24 patients who were absent from hypersensitivity were selected. The teeth with NCCL were randomly divided into the test and control groups. The teeth in the test group were restored with flowable resin; the control teeth were not restored. Six months later, the clinical examinations were repeated. The data were analyzed using the SPSS program. Results: The results were as follows: 1) NCCL occurred on 45.8% of examined teeth. The percentage of affected teeth was higher in maxillary and premolar teeth. 2) The shallow saucer type was the most common. 3) Teeth with NCCL had more gingival recession, lower attachment level, and higher incidences of bleeding on probing(BOP) and plaque than NCCL-free teeth. 4) Six months later, gingival recession, attachment level, the percentages of BOP and plaque in the test group were lower than in the control group(p<0.05). Conclusion: NCCLs were more found in maxillary teeth, especially in premolar teeth. The results suggest that the restoration of NCCL could affect some periodontal parameters favorably.
김현주,배순도,이건휘,박성태,박정규,박형만,Kim, Hyun-Ju,Bae, Soon-Do,Lee, Geon-Hwi,Park, Sung-Tae,Park, Chung-Gyoo,Park, Hyeong-Man 한국응용곤충학회 2007 한국응용곤충학회지 Vol.46 No.3
원산지가 열대지방인 왕우렁이가 국내에서는 월동이 불가능할 것으로 여겨졌으나 1980년대 초에 도입된 후 20여년이 지난 현재 한국 기후에 적응되어 남부지방의 일부 지역에서 월동이 확인되었다. 본 연구는 2003년부터 2006년까지 영남지역에서 왕우렁이를 이용하여 벼 잡초방제를 실시한 지역을 중심으로 왕우렁이의 월동분포와 월동지역의 환경특성을 조사하기 위하여 수행하였다. 영남지역의 왕우렁이 월동실태를 조사한 결과, 하동, 합천, 산청, 김해, 밀양, 창원, 울산, 부산, 경주, 포항, 칠곡, 구미, 상주 및 영주에서 월동을 확인하였는데, 월동지역은 해마다 북상하였다. 왕우렁이가 월동되는 지역의 환경을 조사한 결과 주로 깊은 웅덩이나 겨울에도 물이 계속 흐르는 하천이나 수로, 지하수가 계속 흘러내리는 수로 및 수막재배를 하는 비닐하우스 단지 주변의 도랑 등이다. 이들 장소들의 특징은 겨울에도 수온이 크게 내려가지 않아 물이 얼지 않거나 표면에만 물이 얼고 속에는 물이 얼지 않는 장소들이었다. The effect of environmental factors on the over-wintering success of the apple snail, Pomacea canaliculata, which is considered as unable to hibernate during winter climate in Korea. This study was examined to determine the location of over-wintering habitats in the agricultural water system related with weed control using the apple snail in rice paddy field in the Yeongnam district from 2003 to 2006. Over-wintering success of the apple snail was observed at Hadong, Hapchen, Sanchung, Kimhae, Milyang, Changwon, Ulsan, Busan, Gyengju, Pohang, Chilgok, Seongju, Gumi, Sangju and Youngju in Yeongnam area. And the over-wintering locations of apple snail going north year by year. Accordingly, the successful over-wintering sites observed were deep wells, water running canals and brooks not dried conditions. A special feature of this sites was that the water of this sites was not frozen during winter season.
작은뾰족민달팽이의 기주 선호성 및 기주에 따른 발육과 수명
김현주,배순도,윤영남,최병렬,박정규,Kim, Hyun-Ju,Bae, Soon-Do,Yoon, Young-Nam,Choi, Byeong-Ryeol,Park, Chung-Gyoo 한국응용곤충학회 2012 한국응용곤충학회지 Vol.51 No.1
작은뾰족민달팽이($Deroceras$ $reticulatum$ M$\ddot{u}$ller)의 채소류에 대한 기주선호성 및 식이기주에 따른 작은뾰족민달팽이의 발육기간과 수명을 조사하였다. 작은뾰족민달팽이의 기주선호성은 배추($Brassica$ $campestris$ L.)에서 가장 높았고, 다음은 오이($Cucumis$ $sativus$ L.)이었으며, 당근($Daucus$ $carota$ L.), 케일($Brassica$ $oleracea$ L. var. $acephala$ D.C), 양배추($Brassica$ $oleracea$ var. $capitata$ L.) 및 비트($Beta$ $vulgaris$ var. Ruba) 간에는 유의성이 없이 낮았다. 산란수는 오이에서 109.6개로 가장 많았으며, 잎들깨에서 10개로 가장 적었다. 부화율도 오이에서 92.4%로 가장 높았으며, 잎들깨에서 62.5%로 가장 낮았다. 알기간은 12~13일로 기주식물에 따른 유의한 차이가 없었다. 유체기간 및 성체수명은 각각 75~111일 및 66~187일 이었다. 그리하여 작은뾰족민달팽이의 알에서 성체수명까지의 총 수명은 오이에서 273일로 가장 길었고, 잎들깨에서 190일로 가장 짧았다. This study was conducted to investigate food preference and developmental characteristics of the gray field slug, $Deroceras$ $reticulatum$ M$\ddot{u}$ller (Stylommatophora: Limacidae) using various foods. The food preference of $D.$ $reticulatum$ was most highest on Chinese cabbage ($Brassica$ $campestris$ L., followed on cucumber ($Cucumis$ $sativus$ L.), and significantly low on beet ($Beta$ $vulgaris$ var. Ruba), kale($Brassica$ $oleracea$ L. var. $acephala$ D.C), carrot (Daucus carota L.) and Chinese cabbage ($Brassica$ $campestris$ L.) which were not different significantly. The total number of eggs laid by $D.$ $reticulatum$ was the highest (n = 109.6) on cucumber and the lowest (n = 10.1) on leaf perilla ($Perilla$ $frutescens$ var. $japonica$ Hara). Hatchability was the highest (92.4%) on cucumber and the lowest (62.5%) on leaf perilla. The egg developmental period was not significantly different from 12 days to 13 days among host plants. Juvenile period and adult longevity ranged from 75 days to 111 days and 66 days to 187 days, respectively. Thereby, life span from egg to adult longevity of $D.$ $reticulatum$ was the longest on cucumber with 273 days and the shortest on 190 days on leaf perilla.
무선 인지 기술 기반의 WRAN 시스템에서 숨겨진 인컴번트 시스템 검출 MAC 프로토콜
김현주,조경진,현태인,유상조,Kim, Hyun-Ju,Jo, Kyoung-Jin,Hyon, Tae-In,Yoo, Sang-Jo 한국통신학회 2006 韓國通信學會論文誌 Vol.31 No.12b
무선 인지 기술 환경에서 CR 기지국이 숨겨진 인컴번트 시스템의 등장으로 인해 CR 사용자와 통신이 불가하고 인컴번트 사용자가 간섭을 받을 때, 이를 해결하기 위한 시그널링 방법에 관한 것으로 숨겨진 인컴번트 시스템의 검출을 위한 프로토콜을 제안한다. 특히 아웃밴드 시그널링 검출 방법을 통해 상향링크 및 하향링크 프레임 구조를 이용하여 단말의 채널상태 보고 방법과 이에 대한 기지국의 확인방법 및 절차를 제안한다. 서로 다른 CR 기지국이 공존하는 방법으로 낮은 충돌 확률로 아웃밴드 시그널링 메시지를 전송할 수 있도록 하고 이 때 주파수 사용 효율을 높이기 위해 분할 주파수 대역을 사용한다. 이를 통해 무선 인지 기술에서의 신뢰성 있고 효율적인 아웃밴드 시그널링 프로토콜을 제안한다. In this paper, we propose a inband/outband broadcast method for hidden incumbent system detection of medium access control layer for wireless regional area network systems using cognitive radio technology. Through some extra channels that are not currently used, a short message is broadcasted. The message allows CPE detecting an appearance of incumbent system to send sensing report to CR BS. For the hidden incumbent system report message, the BS needs a process or method for allocation of upstream resource to CPEs. And transmitting multiple out-band signals has a possibility to collide with out-band signals of other co-located WRAN BSs. To avoid out-band signal collision, BSs randomly select it out-band signal broadcasting time within the pre-defined explicit out-band signaling, period. And fractional Bandwidth Usage allows WRAN BSs to efficiently use bandwidth.