백령도와 연평도의 곤충상 조사결과, 통나방과 (나비목: 뿔나방상과)의 11종이 서해안지역에서는 처음으로 기록되었다. 그 중 Coleophora adjunctella Hodgkinson, C. chenopodii Oku, 그리고 C. kurokoi Oku는 한반도에서 처음으로 기록되는 종으로 이들 종 동정에 필요한 성충과 암컷 생식기 사진을 함께 기재한다.

The tobacco whiteflies, Bemesia tabaci, infest the Oriental melon and give significant economic damage along with its virus-vectoring activity. Various biotypes of B. tabaci have been well known and are classified depending on the severity of crop damage and insecticide susceptibility. B. tabaci adults were collected in the melon fields and diagnosed with PCR molecular markers. In all 11 sampling sites, B. tabaci adults were diagnosed to be Q biotype. In contrast, B biotype was found in one sampling site. These results indicated that most B. tabaci occurring the Oriental melon fields in Andong is Q biotype.

In this study, by using nickel chloride solution as a raw material, a nano-sized nickel oxide powder with an average particle size below 50 nm was produced by spray pyrolysis reaction. A spray pyrolysis system was specially designed and built for this study. The influence of nozzle tip size on the properties of the produced powder was examined. When the nozzle tip size was 1 mm, the particle size distribution was more uniform than when other nozzle tip sizes were used and the average particle size of the powder was about 15 nm. When the nozzle tip size increases to 2 mm, the average particle size increases to roughly 20 nm, and the particle size distribution becomes more uneven. When the tip size increases to 3 mm, particles with an average size of 25 nm and equal to or less than 10 nm coexist and the particle size distribution becomes much more uneven. When the tip size increases to 5 mm, large particles with average size of 50 nm partially exist, mostly consisting of minute particles with average sizes in the range of 15~25 nm. When the tip size increases from 1 mm to 2 mm, the XRD peak intensities greatly increase while the specific surface area decreases. When the tip size increases to 3 mm, the XRD peak intensities decrease while the specific surface area increases. When the tip size increases to 5 mm, the XRD peak intensities increase again while the specific surface area decreases.

Since 1984, the author has been studying the Daedong flora and has collected a large number of fossil plants from the Amisan Formation of Nampo Group distributed in Chungnam Coal-Field. One of the fossil plants was bennettitalean male flower, which was collected in 1986. The author described it as Weltrichia sp. The occurrence of Weltrichia sp. is the first record in the Early Mesozoic Daedong flora of Korea.

보광염낭거미(Clubiona zacharovi Mikhailov, 1991)의 암컷을 우리나라에서 최초로 기재한다. 이 종은 식물의 잔사체나 돌 밑 등을 배회하는 희귀종이다.

한국산 미기록속인 짧은나래반날개속(Leptusa Kraatz) (신칭)에 속한 두 종-짧은나래반날개[L. (Drepanoleptusa) deplanata (Sawada)] (신칭)와 붉은짧은나래반날개[L. (Eospisalia) kitazawai kitazawai (Sawada)] (신칭)-를 국내에 처음으로 보고한다. 두 종에 대한 검색표, 진단 형질 기재와 성충의 사진 및 주요 형질에 대한 그림을 함께 제시한다.

통나방과의 1종, Coleophora virgaureae Stainton의 국내분포를 처음으로 보고한다. 경기도 수리산에서 채집된 암컷 표본을 근거로 본 종의 종 동정에 필요한 성충과 생식기 사진을 함께 기재한다.

울릉도 성인봉의 토양 시료에서 발견한 육각사다리응애 (신칭, Punctoribates hexagonus Brelese, 1908)를 국내에서 처음으로 보고한다. 이종의 형태적 특징을 기재하고 지리적 분포 정보를 제시한다.

For each cable component in a cable dome structure, pre-tension is needed for stability of whole the structure. The summation of these pre-tension at each joint should be zero to achieve the self equilibrium structure. The first step in cable dome structure analysis is to find the ratio of pre-tension in each member which can produce a stable and structure on self-equilibrium. In this paper, a new method based on the basic principle of closed force polygon for equilibrium system is proposed for the determination of self-equilibrium mode of cable dome structure. A single layer cable dome and two multi layer type domes have been analyzed. The ratios of cable members are determined by the presented method, and check the validation of the results by numerical calculation.

The dynamic analysis of poles made of advanced composite materials is carried out for different length-thickness ratios and layup sequences. The numerical results using ABAQUS obtained for plates and shells are in good agreement with those reported by other investigators. The new results for laminated composite pole structures in this study mainly show the effect of the interactions between the radius-length ratio and other various parameters. The effect of fiber angles of long composite poles also investigated. Key observation points are discussed and a brief design guideline is given.

나비목 파좀나방과에 속하는 Acrolepiopsis nagaimo를 국내 미기록종으로 보고한다. 2003년 처음 김천시에서 채집되었으며, 2008년부터 안동 생물자원연구소의 마 시험포장에서 단마를 가해하는 것이 발견되었다. 성충의 형태적 특징을 기재하고, 성충 및 날개의 사진과 시맥 그림, 그리고 암수 생식기의 사진을 제공한다.나비목 파좀나방과에 속하는 Acrolepiopsis nagaimo를 국내 미기록종으로 보고한다. 2003년 처음 김천시에서 채집되었으며, 2008년부터 안동 생물자원연구소의 마 시험포장에서 단마를 가해하는 것이 발견되었다. 성충의 형태적 특징을 기재하고, 성충 및 날개의 사진과 시맥 그림, 그리고 암수 생식기의 사진을 제공한다.나비목 파좀나방과에 속하는 Acrolepiopsis nagaimo를 국내 미기록종으로 보고한다. 2003년 처음 김천시에서 채집되었으며, 2008년부터 안동 생물자원연구소의 마 시험포장에서 단마를 가해하는 것이 발견되었다. 성충의 형태적 특징을 기재하고, 성충 및 날개의 사진과 시맥 그림, 그리고 암수 생식기의 사진을 제공한다.나비목 파좀나방과에 속하는 Acrolepiopsis nagaimo를 국내 미기록종으로 보고한다. 2003년 처음 김천시에서 채집되었으며, 2008년부터 안동 생물자원연구소의 마 시험포장에서 단마를 가해하는 것이 발견되었다. 성충의 형태적 특징을 기재하고, 성충 및 날개의 사진과 시맥 그림, 그리고 암수 생식기의 사진을 제공한다.

Trivalent cerium-ion-doped Y3(Al, Ga)5O12 nanoparticle phosphor nanoparticles were synthesized using the reversemicelle process. The Ce doped Y3(Al, Ga)5O12 particles were obtained from nitrate solutions dispersed in the nanosized aqueousdomains of a micro emulsion consisting of cyclohexane as the oil phase and poly(oxyethylene) nonylphenyl ether (Igepal CO-520) as the non-ionic surfactant. The crystallinity, morphology, and thermal properties of the synthesized Y3(Al, Ga)5O12:Ce3+powders were characterized by thermogravimetry-differential thermal analysis (TGA-DTA), X-ray diffraction analysis (XRD),scanning electron microscopy (SEM), and transmission electron microscopy. The crystallinity, morphology, and chemical statesof the ions were characterized; the photo-physical properties were studied by taking absorption, excitation, and emission spectrafor various concentrations of cerium. The photo physical properties of the synthesized Y3(Al, Ga)5O12:Ce3+ powders werestudied by taking the excitation and emission spectra for various concentrations of cerium. The average particle size of thesynthesized YAG powders was below 1µm. Excitation spectra of the Y3Al5O12 and Y3Al3.97Ga1.03O12 samples were 485nmand 475nm, respectively. The emission spectra of the Y3Al5O12 and Y3Al3.97Ga1.03O12 were around 560nm and 545nm,respectively. Y3(Al, Ga)5O12:Ce3+ is a red-emitting phosphor; it has a high efficiency for operation under near UV excitation,and may be a promising candidate for photonic applications.

Blacken spoilage is one of the common problems during the cold storage of dried persimmon in Korea. We collected the spoiled dried persimmon in the refrigerator and classified them to 4 types depending on their appearances. Furthermore we isolated blacken spoilage inducing bacteria from type D of dried persimmons. Among the isolates we identified the seven blacken spoilage inducing bacteria. They are Aeromonas hydrophila DP1, Cedecea davisae DP2, Ewingella americana DP3, Flavimonas oryzihabitans DP4, Providencia rettgeri DP5, Providencia rustigianii DP6 and Serratia plymuthica DP7. Strains were identified based on their morphological, cultural and physiological properties. We also found that Ewingella americana DP3, Flavimonas oryzihabitans DP4 were the major blacken spoilage inducing bacteria during dried persimmon storage.

본 연구는 매스 미디어가 문화변천에 어떤 영향을 미치는지 살펴보고자 한다. 문헌 검토를 통해 현대 문화변천과 매스 미디어와의 상관성을 세 가 지의 연구 문제로 설정하였다. 특히 이 연구는 문화적 인식 변화와 문화변천에 도 움을 주는 매스 미디어와 정치, 사회변천, 세계화, 경제 발전과 미래 문화에 매스 미디어가 미치는 영향에 대해 검토하는데 주요 목적이 있다. 매스 미디어는 우리 에게 이미 어느 정도의 통제가 가능하고 더 편리해져서 문화변천에 다양한 방향을 제시한다. 따라서 매스 미디어는 문화진화와 실천 과정의 직접적인 수단이라 할 수 있다. 특히 문화변천에 대한 매스 미디어의 영향은 사회, 경제, 정치 그리고 모 든 국제화 사업과의 조화로운 융합에 성공함으로써 매스미디어가 문화적 가치 및 경제적 가치를 실현하는데 중요한 영향을 미치는 것으로 나타났다.

This study presents the effectiveness of a composite structure at improving blast resistance. The proposed composite structure consists of carbon fiber reinforced polymer (CFRP) and steel layers. While CFRP layer is used for blast energy reflection due to its high strength, steel layer is used for blast energy absorption due to its high ductility. A dynamic model is used to simulate the elastoplastic behavior of the proposed composite structure subject to blast load. Considering the magnitude variations of a blast event, the probability of failure of each layer is evaluated using reliability analysis. By assigning design probability of failure of each layer in the composite structure, the thickness of layers is optimized. A case study for the design of CFRP-steel composite structure subjected to an uncertain blast event is also presented.

The Mesozoic leucocratic granite in the northeastern margin of the Taebaeksan Basin was transformed to protomylonite and mylonite. Mylonitic foliations generally strike to NWWNW and dip to NE with the development of a sinistral strike-slip (top-to-the-northwest) shear sense. Grain-size reduction of feldspar in the mylonitized leucocratic granite occurred due to fracturing, myrmekite formation and neocrystallization of albitic plagioclase along the shear fractures of K-feldspar porphyroclasts. As the deformation proceeded, compositional layering consisting of feldspar-, quartz- and/or muscovite-rich layers developed in the mylonite. In the feldspar-rich layer, fine-grained albitic plagioclase and interstitial K-feldspar were deformed dominantly by granular flow. On the other hand, quartz-rich layers containing core-mantle and quartz ribbons structures were deformed by dislocation creep. Based on calculations from conventional two-feldspar and ternary feldspar geothermometers, mylonitization temperatures of the leucocratic granite range from 360 to 450˚C. It thus indicates that the mylonitization has occurred under greenschist-facies conditions. Based on the geochemical features and previous chronological data, the leucocratic granite was emplaced during the Middle Jurassic at volcanic arc setting associated with crustal thickening. And then the mylonitization of the granite occurred during the late Middle to Late Jurassic (150-165 Ma). Therefore, the mylonitization of the Jurassic granitoids in the Taebaeksan Basin was closely related to the development of the Honam shear zone.

Although embryonic stem cells (ESCs) or ES-like cells are reported from many mammalian species other than the mouse, the culture system for murine ESCs may not be suitable to the other species. Previously many other research groups have modified either human or mouse ESC culture systems for bovine ESC culture. In this study, we compared three different culture mediums consisting of DMEM, -MEM or KnockOut-DMEM (KO), which are modified from human or mouse ESC culture system, for the generation of bovine ESCs. In this study, some pre-requisite events which are important for establishment and long-term propagation of ESCs such as inner cell mass (ICM) attachment on feeder cells, primary colony formation and sustainability after passaging. Once the ICM clumps attached on feeder cells, this was designated as passage 0. In regards to the rate of ICM attachment, -MEM was superior to the other systems. For primary colony formation, there was no difference between DMEM and -MEM whereas KO showed lower formation rate than the other groups. For passaging, the colonies were split into 2~4 pieces and passed every 5~6 days. From passage 1 to passage 3, DMEM system seemed to be appropriate for maintaining putative bovine ESCs. On the other hand, -MEM tended to be more suitable after passage 6. Although -MEM support to maintain a ES-like cell progenies to passage 15, all three culture systems which are modified from human or mouse ESC culture media failed to retain the propagation and long-term culture of putative bovine ESCs. Our findings imply that more optimized alternative culture system is required for establishing bovine ESC lines.

Environmental problems such as global warming become social issues today. It is reported that increasing energy consumption has affected on these environmental issues. Buildings deploys 40 percent of the raw materials in the world while at the same time they emit over 35 percent of the total CO2, so that it utilize over 50 percent of the whole energy in the world. At this point, energy saving though effective building control may eventually bring social, environmental and economical effects. Thus, this study will explore the difference between measured temperature and monitored temperature for operating air control system in the building, to which BEMS is applied. Also, it will suggest a method to accurately predict the load of air-conditioning, and will examine the different amounts of the load according to the temperature as well as the reduced amount of the load through changes of operation standard temperature.

Recently, underground pipes are utilized in various fields of applications such as sewer lines, drain lines, water mains, gas lines, telephone and electrical conduits, culverts, oil lines, etc. Most of pipes are installed for long-term purposes and they should be safely installed in consideration of installation conditions because there are unexpected various terrestrial loading conditions. In this paper, we present the result of investigation pertaining to the structural behavior of glass fiber reinforced thermosetting polymer plastic (GFRP) flexible pipes buried underground. The mechanical properties of the GFRP flexible pipes produced in the domestic manufacturer are determined and the results are reported in this paper. In addition, ring deflection is measured by the field tests and the finite element analysis (FEA) is also conducted to simulate the structural behavior of GFRP pipes buried underground. From the field test results, we predicted long-term, up to 50 years, ring deflection of GFRP pipes buried underground based on the method suggested by the existing literature. It was found that the GFRP flexible pipe to be used for cooling water intake system in the nuclear power plant is appropriate because 5% ring deflection limitation for 50 years could be satisfied.