• ICROS
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• v.18 no.1
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• pp.20-25
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• 2012

자연계에 존재하는 생물체는 오랜 시간에 걸쳐 지구의 가혹한 환경에 적응하면서 다듬어져온 최적화된 작품이다. 이러한 동 식물의 생체 특징 모방은 기존 기술의 한계를 돌파하면서 가장 활발한 연구 분야로 자리 잡고 있다. 생체모방 로봇은 생체모방 기술의 한 분야로써 곤충, 새, 물고기, 그리고 여타 동물들을 연구해 생명체의 우수한 특성을 로봇기술에 접목함으로써 기존의 로봇 시스템이 극복하지 못했던 수많은 난제 해결에 도전중이다. 생체모방 로봇 기술의 최신 동향을 크게 세 줄기로 나누면 실용화, 생체분석법의 다양화, 모방대상의 다양화로 분류될 수 있다. 이 글에서는 이상에서 언급한 생체모방 로봇의 최신 동향에 대해서 소개한다.

• Journal of Sericultural and Entomological Science
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• v.22 no.2
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• pp.13-21
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• 1981

세계에서 잠업기술이 가장 발달하고 있는 일본에서는 근래 고치의 생산이 해마다 줄어들고 있는데 그 가장 중요한 원인은 농촌노력이 부족한데 있다. 따라서 일본은 고치의 생산량을 유지하기 위하여 잠업의 모든 생산과정을 기계화함으로써 노동생산성을 높이는데 전력하고 있다. 이러한 견지에서 일본에서는 뽕의 조기 수확과 기계화하는데 적합한 밀식재배법의 연구, 뽕의 수확기계의 개발 뽕밭관리의 기계화 등 노력을 절감하기 위한 많은 연구가 이루어지고 있다. (중략)

• Korean journal of applied entomology
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• v.31 no.2
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• pp.182-189
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• 1992

The influnces of 9 kinds of solvents on the toxicities against several insect species, phytotoxicity and solubility of compounds were evaluated by means of leaf dipping and spray methods. In case of the spray application, density and vapor pressure seemed to be a contributing factor to lethal toxicity against brown planthopper and diamond-back moth, respectively; the bigger the property of density and the smaller the vapor pressure gave the stronger toxicity. It appeared that the toxicity of solvents was not correlated with anyone of physical properties such as boiling point, dipole moment, dielectric constant, surface tension and viscosity. Spray treatment gave more toxicity to insects than leaf dipping treatment. Although dielectric constant and dipole moment seemed to be contributing factors to phytotoxic damage to rice seedling and bean plants, respectively, no general correlation between phytoxicity and the other physical properties was found. Leaf dipping application caused stronger phytotoxicity than spray application. It is concluded that 5% acetone solution may be most suitable to test chemicals because of its favorable solubility of compounds, lower toxicity to insects, and lower phytotoxicity.

• Korean journal of applied entomology
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• v.31 no.4
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• pp.452-460
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• 1992

To establish the economical and reliable routine bioassay system for developing new insecticidal compounds, effects of leaf-dipping time, application methods, insect species and their developmental stages on susceptibilities of insects to insecticides were studied. The stable insecticidal activity appeared at the dipping time for 30-60 seconds in leaf-dipping method, and the most effective application methods were leaf-dipping method for apterous green peach aphid adults, and third instars of diamond-back moth and tobacco cutworm, whereas seedling+insect spray method for adults or third instars of brown planthoppers. For two-spotted spider mite, leaf-dipping or intact plant spray method was favorable. In the bioassay for chitin synthesis inhibitors, the inoculation of third instars of brown planthopper, diamond-back moth, tobacco cutworm and green peach aphid, and larvae of two-spotted spider mite to the young host plants treated by spray method were adequate bioassay methods.

• The Korean Journal of Soil Zoology
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• v.10 no.1_2
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• pp.16-21
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• 2005

This study includes the taxonomy and occurrence of ticks and mites from Jinju, Kyogsangnamdo province, Korea. Materials examined were attraccted to carrions of chicken and cattle flesh from September 2002 to December 2003. As a result, the following seven species were identified. Suborder Ixodida Family Ixodidae 1. Haemaphysalis longicorttis Neumann, 1901 Suborder Mesostigmata Family Machrochelidae 2. Macrocheles muscaedomesticae (Scopoli, 1772) 3. Holostaspella ornata (Berlese, 1904) Family Ascidae 4. Protogamasellus micus (Athias-Henriot, 1961) 5. Lasioseius sugawarai Ehara, 1964 6. Proctolaelaps sp. Suboder Prostigamta Family Erythraeidae 7. Abrolophus sp. Of these, M. muscaedomesticae and Protogamasellus micus are dominant species. Holostaspella ornate(Berlese, 1904) and Protogamasellus mica(Athias-Henriot, 1961) are new to Korean fauna.

• Journal of Sericultural and Entomological Science
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• v.34 no.1
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• pp.35-40
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• 1992

An enzyme-linked immunosorbent assay (ELISA) was studied for the rapid diagnosis of the flacherie virus (FV) of the silkworm, Bombyx mori. The optimised concentration of rabbit anti-FV IgG and enzyme conjugate for the this technique were 15$\mu\textrm{g}$/$m\ell$ and 1:100 dilution, respectively. In ELISA, the detectable concentation of purified FV was 15ng/$m\ell$, and the flacherie viral antigens in the larval extracts were detected as early as 24 hours after the experimental infection. The results indicated that ELISA technique proved to be applicable for the rapid diagnosis of flacherie virus disease.

• Korean journal of applied entomology
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• v.22 no.3 s.56
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• pp.228-231
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• 1983

In order to eradicate harmful insect by use of sterile male techniques, it is necessary to disperse about 10 times as many male insect as in wild condition. However, it is so difficult to discriminate male insect in pupal stage that usually the population are likely to be contaminated by female insect when that are released in field. The present study was conducted to establish a useful method capable of differenciating the male pupae of Stomawys calcitsans by means of measuring the pupal weight and length. The results were summarized as follows; 1. Male pupa was lighter and shorter than female and high correlation existed between length and width of pupa. 2. There was significant relationship between the length of pupa and width of adult 3. When the pupal sex of stable ay was identified by median of mean length and mean weight of the pupae, the Ratio of female to male was 1 : 1. 4 and 1 : 2. 2, respectively. Therefore, median of pupal weight seemed to be applicable for obtaining more number of male pupae.

• Korean journal of applied entomology
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• v.32 no.3
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• pp.323-329
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• 1993

These studies were conducted to evaluate the five comparative test methods for detecting chemical resistance and to investigate resistant level of field populations of diamondback moth (Plutella xylostella L.). Leaf disc method was practically rocomrnendable because of its rapidity and low CV(l1.4%). Topical application method was a precise replicabiliLy(CV=8.00/0) but it was time consuming and difficult in mampulation. The other 3 methods showed higher CV ranging from 14.9% to 21.4%. Based on $LC_{50}$ values by topical application method, field populations of diamondback moth collected from 4 different regions, Kwangju, Kimhae, Jeju, and Inje to prothiofos showed from 3.3 to 61.1 times higher resistance than the susceptible strain, whereas to cypermethrin, Lhey were from 7.5 to 141.7 times higher than the susceptible. To cartap hydrochloride, they showed from 10.5- to 33.3-fold resistant levels as high as the susceptible. Finally, based on $LC_{50}$ values to Bacillus thuringiensis by leaf disc technique, the resistant levels of the field populations were from 1.9 Lo 8.1 times as compared to the susceptible.

• Korean journal of applied entomology
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• v.51 no.3
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• pp.191-205
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• 2012

Because insect visitors was different depending on decomposition stage, dipterans occurred on chicken carcasses depending on postmortem intervals were compared by abandoned sites and decomposition from a serial study on arthropod occurrence from carcasses as forensic indicator. Species occurrence and decomposition of carcasses were different depending on abandoned sites (forest hill, open field, stream, greenhouse and roof), seasons (spring, summer, fall and winter), and situation (burying and non-burying). Development of carcass decomposition was faster at all sites in summer, carcass in greenhouse in winter, and unburied carcasses. Although visiting time of blow flies (Calliphoridae) (Phaenicia sericata, Lucilia illustris, Lucilia sp., Chrysomyia pinguis, and Chrysomyia megacephala) was different depending on abandoned season, their adults were generally collected from carcasses within 2 days. However, there were no visited flies at fresh stage of buried carcasses. The flesh flies (Sarcophagidae) were collected from all sites and seasons, and much faster from unburied carcasses than buried carcasses. Those were collected earlier from carcasses in greenhouse than other sites and occurrence was also shorter. In greenhouse, occurrence time of flesh flies were different depending on season; spring and summer - from fresh to active decay stage, fall - fresh to active decay stage, and winter - advanced decay to remains stage. Calliphora lata, Tricerotopyga calliphoroides, and Aldrichana grahami were dominant species and occurrences were different from other flies. These flies were active mainly from fresh to active stage. Larvae of sarcophagid flies were occurred earlier than those of calliphorid flies on buried carcasses.

• Korean journal of applied entomology
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• v.56 no.2
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• pp.171-177
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• 2017

Plant parasitic nematodes, Meloidogyne and Pratylenchus spp., are mostly detected in imported bulbs and tubers including a ginger, Zingiber officinale in Korea by quarantine inspection. However, there is little information on hot water immersion treatment (HWIT) for control of exotic nematodes, which induce economic loss by discard or send back to exporter, in imported gingers. In here, we determined that mortality of two plant parasitic nematodes and thermal stability of ginger. Meloidogyne and Pratylenchus spp. were completely killed at $48^{\circ}C$ and $49^{\circ}C$ for 30 sec by HWIT. Thermal conduction of Z. officinale to reach a target temperature as $50^{\circ}C$ take 10~32 min and 6~16 min for core and inner 5 mm region from surface, respectively. When ginger exposed at $51^{\circ}C$ for 30 min, growth of Z. officinale was not affected by heat treatment compared with control. Based on these results, HWIT at $51^{\circ}C$ for 30 min completely killed artificially infected juveniles of Meloidogyne spp. in Z. officinale. Therefore, this condition for HWIT will be used as fundamental information on phytosanitory to kill two plant parasitic nematodes without damage on ginger.