• Journal of Sericultural and Entomological Science
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• v.37 no.1
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• pp.74-85
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• 1995

A study was conducted to provide some basic data for controlling the Mulberry scale insect(Pseudaulacaspis pentagona T.). Experiments were carried out with checking their field-life, and a few selected insecticides were tested when mulberry leaves were not in use. About 57% of female were survived from the overwintering attached to the bark. Over 80% of the scale were distributed within the range of 30cm from the base of each stem. One hundred percent and 96.7% of eggs were hatched under 25$^{\circ}C$ and 27$^{\circ}C$ respectively. Eighty percent of pupae emerged both under 25 and 27$^{\circ}C$. The Mulberry scale require about 33 days under 25$^{\circ}C$ and 30 days under 27$^{\circ}C$. This species had 2 generations each year in mulberry field in Suwon. Overwintered as a mated female only. Oviposited about 170 eggs under their scale starting from the late April (in 1994) through the mid May (in 1993). Phenthoate EC sprayed in the mid June against the larvae was very effect with over 96% of control value.

• 한국HCI학회:학술대회논문집
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• 2006.02a
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• pp.1069-1074
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• 2006

자동차/선박/정보통신기기 등의 각종 제조 산업 분야에서 신제품 개발기간과 비용단축을 위해 제품의 설계/스타일링 단계에서 디자인 및 사용자 사용성/편이성 등에 대해 가상으로 품평하는 기술에 대한 관심이 날로 증가하고 있다. 이상적인 가상 품평 기술은 사용자가 실물에 대한 품평 상황과 동일한 체험을 얻을 수 있도록 해야 한다. 이를 위해서 품평 대상물을 사실적으로 표현할 수 있도록 하는 실사 수준의 고품질 가시화 기술과 사용자가 품평 대상물을 자연스럽게 조작할 수 있는 상호작용 기술이 필요하다. 본 연구는 자동차의 내 외관 디자인 품평을 위한 가상 디자인 품평 시스템의 개발에 관한 것으로, 사실적인 자동차 가시화를 위한 환경 반사, 빛 산란, 범프 매핑등의 고품질 쉐이더 구현 및 저작 기술, 몰입환경에서 품평 작업을 위한 3D GUI 지원, 자동차 각 부품의 사용성/편이성 평가를 위한 운동성 조작 기능, 멀티프로젝션 디스플레이 시스템 및 3 차원 인간 모델, 장갑형 입력장치 지원을 통한 몰입형 가상 품평 환경 구축에 관한 기술 및 구현 방법을 제시하고자 한다.

• Nuclear Engineering and Technology
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• v.11 no.2
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• pp.111-117
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• 1979

The light output of the NE213 liquid scintillator to electrons and protons was measured by coincidence spectrometer which employs the time of flight technique. The proton energies (3.2Mev, 4Mev, 5Mev, 6Mev) represent the kinetic energies of recoil protons from elastic scattering of a polyenergetic neutron source Am-Be (about 2-9 Mev) at angle of 45$^{\circ}$ and 60$^{\circ}$. The response of the NE213 liquid scintillator to protons was varied nonolinearly as the energy increased. while the response to electrons was varied linearly. The light intensity produced by electrons was relatively larger than that of protons in the rate of about three times when the same energy was introduced. The results of the light output to protons were similar to those of Batchelor et al.

• Korean journal of applied entomology
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• v.50 no.2
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• pp.167-170
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• 2011

Pseudoips fagana Fabricius belongs to the subfamily Chloephorinae (Lepidoptera: Noctuidae). Eggs of Pseudoips fagana were white and oviposited on oak leaves. There were five P. fagana larval instars, which were light green in color with four white crosslines. The larval period was approx. 24.4 days ($25^{\circ}C$, 16L:8D). Pupae were covered with a light-green membrane and silk. The wingspan of adults was approx. 15 to 18 mm. The color of the forewings of both sexes was bright green. The color of the hindwings was yellow in males and and white in females. First emergence was from early May to late June, and the second emergence was from early July to late August. Pseudoips fagana over-wintered as pupae.

• Korean Journal of Ichthyology
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• v.7 no.2
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• pp.171-176
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• 1995

Age and growth of Dictyosoma burgeri, sampled in the costal waters off Sanyang, Tongyeong, Ky$\breve{o}$ngnam during December 1992∼November 1993, were studied by otolith reading. Examination of outer margins of the otolith showed that the opaque zone as annulus was formed once a year with being mainly configured in November. Spawning period was estimated from January to March, with a peak in Feburary. Growth of the fish was expressed by the von Bertalanffy's equation as $L_t=23.5977(1-e^{-0.2542(t+2.1302)})$, $W_t=64.5892(1-e^{-0.2542(t+2.1302)})^{2.3002}$, where $L_t$ is total length in ㎝, $W_t$ is total weight in g and t is age.

• Korean Journal of Ecology and Environment
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• v.48 no.4
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• pp.280-286
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• 2015

Life cycles of Sweltsa illiesi and S. lepnevae were determined from a headwater stream in Mt. Jumbong. Identification of nymphs was done by using DNA barcoding. Nymphs begin to have species specific color pattern on their head several months prior to adult emergence and differ in the form of the third antennal segment. Two species appear to have similar semivoltine life cycles in this stream, beginning to hatch from June and finishing adult emergence about 701 days later. The combined annual mean biomass in ash free dry mass (AFDM) was estimated as $96mg\;AFDM\;m^{-2}$. The combined annual secondary production were 373 mg and $297mg\;AFDM\;m^{-2}\;yr^{-1}$, calculated by using size frequency method and increment summation method respectively.

• Korean journal of applied entomology
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• v.50 no.3
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• pp.253-256
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• 2011

The walnut leaf beetle, Gastrolina depressa, belongs to family Chrysomelidae (Coleoptera), and is one of the major pests of walnut trees. G. depressa eggs were oval and dark orange. The three G. depressa larval instars were gray in color. The larval period was approx. 8.14 days ($24^{\circ}C$, 16L:8D). Adults of both sexes were dark blue, and females were larger than males. Overwintered adults emerged in late April, and laid eggs in clusters on young leaves of the host tree. Mature 3rd instar larvae pupated after a short prepupal period. Adults emerged starting mid-May and entered into diapause shortly afterward.

• Monthly Duck's Village
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• v.63 no.9
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• pp.42-51
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• 2008

AI방역체계가 상시방역체계로 전환됨에 따라 상시방역 예찰프로그램이 본격적으로 가동되기 시작했다. 농림수산식품부는 최근 2008년도 하반기 AI예찰 시행계획을 발표했다. 시행계획에 따르면 예찰기간은 8월부터 오는 12월까지이며 과거 발생지역인 13개 시.군을 포함해 올해 발생지역 19개시군 및 야생조류에서 항체항원이 분리된 5개 지역을 집중관리지역으로 임상예찰이 중점적으로 시행된다. 또 종오리 및 육용오리 농가들의 경우 분기별로 검사를 실시하며 전국 철새도래지 41개소에 대해서는 매월 포획 및 분변검사를 실시하다. 또 재래시장에서 유통되고 있는 가금류에 대한 검사와 함께 집중 관리지역 및 철새도래지 인근 돼지 사육농가에 대해서도 AI 검사를 실시한다는 방침이다. 종오리 농장의 경우 전국 84개소에 대해 매일 1회 전화조사 및 사료.음수 섭취량과 산란을 저하 등의 일지를 작성 매월 실적을 방역당국에 제출해야 한다. 또 종오리 농장 및 육용오리 농장은 9월 마지막주에서 10월 둘째주에 1차, 12월 10일-12월 31일까지 2차로 채혈검사가 실시된다. 이와 함께 전국 철새도래지 등 야생조류 분변에 대한 모니터링 검사와 함께 포획검사도 실시된다. 재래시장 유통 가금류에 대해서는 전국 80여개 상설시장에서 시료를 채취해 검사를 실시하고 위험지역 및 철새도래지 반경 15km 이내의 돼지농장도 검사대상에 포함된다. 이 밖에도 관산용 및 전시용 조류 사육농가에 대한 검사도 실시되며 2006년부터 올해까지 HPAI가 발생됐던 국가에서 수입된 가축사료용 수입 원료에 대해서도 항원 검사를 실시한다.

• The Korean Journal of Zoology
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• v.32 no.1
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• pp.22-33
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• 1989

Comparison of morphological characters and development of eggs and larvae of two bitterlings, Acheilognathus limbata and A. signifer from Korea were observed and discussed taxonomically. A. signifer differs from A. limbata by the color pattern of dorsal and anal fin ray of male, egg form and the length of ovipositor of female. Although two species are overlapping each other in some morphometric characters, there is a great difference between the two in the multivariate analysis of 15 morphological characters of five comparative populations. These results indicate that A. limbata and A. signifer are two independent allopatric sibling species in Korea.

• Korean journal of applied entomology
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• v.15 no.3 s.28
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• pp.147-151
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• 1976

Laboratory experiments were conducted to evaluate the resistance of the new rice varieties Milyang $\#$21 and $\#$23 at the seedling stage to the brown planthopper(Nilaparvata lugens), small brown planthopper(Laodelphax striatellus), white-back planthopper(Sogatella furcifera), green rorice leafhopper(Nephotettix cincticeps) and zigzag-striped leafhopper (Recilia dorsalis) The varieties Yushin and T(N)-1 were used as susceptible check and the resistant check varieties were Mudgo to brown planthopper, ASD-7 :o small brown planthopper, Colombo to white-back planthopper, IR2061 (46763) to green rice leafhopper and Vellailanalgayan to zigzag-striped leafhopper. The varieties Milyang $\#$21 and $\#$23 were moderate in plant reaction only to the green rice leafhopper and $\#$23 was moderately resistant in plant rection only to the small brown planthopper. The nymphs of plant-and leaf-hoppers were more prefered Milyang $\#$21 and $\#$23 and susceptible check-varieties were more preferred for feeding than the resistant check-varieties. The green rice leafhopper and aigzag·striped leafhopper much more prefered Milyang $\#$21 and $\#$23 for oviposition, while brown planthopper and small brown planthopper more prefered the resistant cheeks than test varieties and susceptible checks. However, there was no any steady relationship in ovipositional preference between resistant and susceptible to the hoppers. Shorter nymphal-periods and higher rate of adult emergence were observed in the test varieties and the susceptible checks compared with the resistant checks. In conclusion, the varieties Milyang $\#$21 and $\#$23 seemed to be lack of true resistance to the plant-and leaf-hoppers from the viewpoints of antibiosis and feeding preference.