http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Yurim Jeong,Minho Lee,Jum-Rae Cho,Man-Young Choi,Yong-Shik Chun,Mun-Il Ryoo,Yong-Man Yu 한국응용곤충학회 2008 한국응용곤충학회 학술대회논문집 Vol.2008 No.10
For the physiological study on environmental impact of genetically modified (GM) pepper plant on non-target but three-trophically related insect species, we investigated behavioral responses of Aphis gossypii and Aphidius colemani in Y-tube olfactometer to the cucumber mosaic virus (CMV)-resistant transgenic pepper plant (H15 GM line) expressing coat protein gene of CMV and its wild type pepper plant (untransformed, susceptible to CMV pathotype II, P2377 inbred line) in relation to CMV infection. CMV-infected plants were prepared with the 30 min of inoculation by the winged A. gossypii viruliferous or mechanical inoculation using CMV-Fny, and with molecular diagnosis using reverse transcriptase-polymerase chain reaction (RT-PCR) over 2 weeks after inoculation. In this study, time for attraction responses (attraction time) of A. gossypii were not significantly different in the pepper strain, and the virus infection of plant. However, the attraction time of A. colemani was significantly different between the GM plant and the non-GM plant. In addition, the attraction time of A. colemani to the GM plant was significantly decreased according to the CMV infection. For further study, the volatile organic compounds (VOCs) emitted by these plants were collected with an entrainment kit and analyzed by Gas Chromatography (GC) on HP-1 column. The specific VOCs related to CMV infection were detected in the GM plant over 4 weeks after inoculation of CMV in this study. Thus, it is suggested that VOCs of the GM plant in this study may be produced more as a signal attracting A. colemani in relation to CMV infection.
Minho Lee,Yurim Jeong,Man-Young Choi,Mun-Il Ryoo 한국응용곤충학회 2010 한국응용곤충학회 학술대회논문집 Vol.2010 No.05
In many cases over the years, we failed to forecast accurately outbreak of Rice stripe virus (RSV) disease using population density of overwintering small brown planthopper (SBPH), Laodelphax striatellus. What is the source of error in this viral disease assessment? For answering the question, spatial distribution of RSV in paddy fields was investigated in relation to the yield of rice grain, and the population density of overwintering SBPH in ridge of paddy fields. Total 14 paddy fields in 5 regions were surveyed in June, 2008. Disease assessment was carried out with each of 30 rice plants in the one of the borders, 5th, 10th line from ridge, and 90 rice plants in diagonal line for conventional method. The ears of rices from 18 plants in the same surveyed line were collected in the late of August for the weights of 100 rice grains. The infection rate of RSV was decreased by the distance from ridge; on the contrary, the increase tendency was shown in the yield of rice grains in the middle of paddy field. It is suggested that the border effect of viral distribution between ridge and paddy field is caused by the spatial distribution of the vector insect. Thus, in this case, the narrow border effect could represent that the SBPH migrated short distance from the ridge to paddy field. The conventional method, observing the disease in middle area of diagonal line, showed no correlation to the population density of overwintering vector generation in ridge. It might cause underestimation of the regional disease rate. The counting of RSV-diseased plant in border line only overestimated it also. However, the RSV infection rate in the near border had highly positive linear relationship (R2=0.91) to the regional average values by regression analysis. Therefore, the near border sampling method can improve the RSV disease risk assessment.
( Yurim Park ),( In Yung Sunwoo ),( Jiwon Yang ),( Gwi-teak Jeong ),( Sung-koo Kim ) 한국미생물 · 생명공학회 2020 Journal of microbiology and biotechnology Vol.30 No.6
The red seaweed Gracilaria verrucosa has been used for the production of bioethanol. Pretreatment for monosaccharide production was carried out with 12% (w/v) G. verrucosa slurry and 500 mM HNO3 at 121℃ for 90 min. Enzymatic hydrolysis was performed with a mixture of commercial enzymes (Cellic C-Tec 2 and Celluclast 1.5 L; 16 U/ml) at 50℃ and 150 rpm for 48 h. G. verrucosa was composed of 66.9% carbohydrates. In this study, 61.0 g/L monosaccharides were obtained from 120.0 g dw/l G. verrucosa. The fermentation inhibitors such as hydroxymethylfurfural (HMF), levulinic acid, and formic acid were produced during pretreatment. Activated carbon was used to remove HMF. Wildtype and adaptively evolved Saccharomyces cerevisiae, Candida lusitaniae, and Kluyveromyces marxianus were used for fermentation to evaluate ethanol production.
Jungryul Ahn,Yurim Jeong,Seongkwang Cha,Joo Yong Lee,Yongseok Yoo,Yong Sook Goo 대한의용생체공학회 2023 Biomedical Engineering Letters (BMEL) Vol.13 No.2
Retinal pigmentosa (RP) patients lose vision due to the loss of photoreceptors. Retinal prostheses bypass the dead photoreceptorsby electrically stimulating surviving retinal neurons, such as bipolar cells or retinal ganglion cells (RGCs). In previousstudies, stimulus charge has been mainly optimized to maximize the RGC response to electrical stimulation. This studyaimed to investigate the effect of amplitude and duration even under the same charge condition on eliciting RGC spikes in thewild-type and degenerate retinas. Wild-type (WT) Sprague–Dawley rats were used as the normal retinal model, and Pde6bknockout rats were used as a retinal degeneration (RD) model. Electrically-evoked RGC spikes were recorded from isolatedrat retinas using an 8 × 8 multielectrode array. The same charge was maintained (10 or 20 nC), and electrical stimulation wasapplied to WT and RD retinas, adjusting the amplitude and duration of the 1st phase of biphasic pulses. In the pulse modulationof the 1st phase, high amplitude (short duration) pulses induced more RGC spikes than low amplitude (long duration)pulses. Both WT and RD retinas showed a significant reduction in the number of RGC spikes upon stimulation with loweramplitude (longer duration) pulses. In clinical trials where stimulus charges are delivered to the degenerate retina of blindpatients, high amplitude (short duration) pulses would help elicit more RGC spikes.
정지수(Jisoo Jeong),지민규(Minkyu Jee),고명현(Myunghyun Go),김학동(Hakdong Kim),임헌영(Heonyeong Lim),이유림(Yurim Lee),김원일(Wonil Kim) 한국방송·미디어공학회 2019 방송공학회논문지 Vol.24 No.1
This paper proposes using machine-learning technology to analyze and classify historical collected documents based on them. Data is collected based on keywords associated with a specific domain and the non-conceptuals such as special characters are removed. Then, tag each word of the document collected using a Korean-language morpheme analyzer with its nouns, verbs, and sentences. Embedded documents using Doc2Vec model that converts documents into vectors. Measure the similarity between documents through the embedded model and learn the document classifier using the machine running algorithm. The highest performance support vector machine measured 0.83 of F1-score as a result of comparing the classification model learned.
1 인칭 메타버스 게임의 HUD UI 와 공간 UI 가 사용자 경험에 미치는 효과
김명지(Myoungji Kim),김효리(Hyori Kim),박유림(Yurim Park),이영현(Yeonghyeon Lee),이한수(Hansu Lee),정범영(Beomyoung Jeong),송원철(Stephen W. Song),정동훈(Donghun Chung) 한국HCI학회 2022 한국HCI학회 학술대회 Vol.2022 No.2
사용자 경험적 관점은 가상현실의 핵심 가치이다. 최근 가상현실 게임 시장의 발전 가능성이 높아지고 있다는 점에 기반하여, 본 연구에서는 게임 사용자의 경험 차이를 측정하기 위해 가상현실 게임 내 UI 요소 중 핵심 UI 와 정보량을 다르게 제공하였다. 25 명을 대상으로 1 인칭 아케이드 가상현실 게임 내 표시되는 핵심 UI 요소와 정보량에 따른 사용자 경험 차이를 피험자내 설계로 실험하였다. HUD UI 가 공간 UI 와 비교하여 직관성, 이해 가능성에서 유의미한 결과가 나타났다. 또한 시각적 단서가 있을 때가 없을 때와 비교하여 직관성, 정확성, 완성도에서 유의미한 결과가 나타났다. 이 결과는 1 인칭 아케이드 가상현실 게임에서 사용성 평가 이론과 미디어 풍요성 이론을 고려해야 한다는 점을 설명하며, 이는 향후 가상현실 게임 디자인이 효과적으로 이루어지기 위한 방안을 제시한다.