한국산 알뾰족반날개속에 대한 분류학적 연구를 수행하였다. 조사된 8종에서 한국산 미기록종은 다음 7ㅈㅇ으로 밝혀졌다. Sepedolhilus amurensis Schilke, S. fimvriatus(Sharp), S. marshami(Stephens), S. simulans Nakne and Sawada, S. suvarmatus Naomi and Matuyama, S. tiialis(Sharp), and S. varicornis(Sharp). 한국산 알뾰족반날개속에 대한 검색표를 작성하였고, 종을 기재하였으며, 진단 형질을 조식하였다.

A modification of the sol-gel method to obtain phase pure superconducting oxides is described. The method starts from organic salts of yttrium, barium and copper, such as acetates, and avoids the sudden and uncontrollable decomposition of the organic fraction which occurs if nitrates are used as starting materials. The aqueous solution obtained with citric acid in an alkaline medium is concentrated under vacuum. The solid so prepared is decomposed at about 300℃ thus giving an oxide precursor containing well dispersed yttrium, barium and copper. Pyrolysis at 850 - 920℃ followed by oxygen annealing gives the superconducting orthorhombic 123 phase. The results of TGA/DTA of the precursor, as well as XRD, electrical and magnetic property measurements on the pyrolysis products are presented and discussed.

한국산 가는목도랑반날개 족의 분류학적 연구를 수행하였다. 국내에서 처음으로 보고되는 3종의 [Falagria sulcata (Paykull), Myrmecopora (Lamproxenusa ) rufescens (Sharp), and Myrmecocephalus sapida (Sharp)］검색표와 표본사진을 작성하였다.

Decnusa속 (벌목:고치벌과:장승입고치벌아과)의 2종 Dacnusa(Aphanta) sasakawai Takada와 Dacnusa(Dacnusa) nipponica Takada를 한국미기록종으로 보고한다. 전종은 Liriomyza broniae(Kaltenbach), 오이잎굴파리와 Chromatomyia horticole(Gourea), 완두굴파리에 기생했으며, 후종은 완두굴파리에 기생했다.

Highspeed steels (HSS) with a combination of good wear resistance and toughness are finding new, non-cutting applications such as rolls and rollers. In this paper, the research interests are focused on the microstructural evolution of a SMo-6W series high speed steel during HIPping and the effect of HIPping process parameters on its microstructure and properties. HIPping process variables includes; temperature, pressure and hold time. The microstructures of the HIPped HSS were examined by SEM, OM and X-ray diffraction whereas the properties measured were the relative density, hardness, and bend strength at room temperature. In HIPped materials, MC and M6C were the major carbides formed in a matrix of martensite. The effect of powder size on the microstructure and mechanical properties of HIPped materials was insignificant. However, HIPping temperature and hold time strongly affected the carbide size and distribution. The results show that at proper HIPping temperature and pressure conditions, the final products approach the full density ( > 99% RD). The particle boundaries were completely eliminated without an eminent microstructural coarsening. The bend strength was about 2.3 Gpa, which is superior to cast HSS. At excessive HIPping temperatures, rapid carbide coarsening occurred, thus deteriorating the mechanical properties of the P/M steels.

중국 중부와 동부에서만 기록되어 있던 Sineugraphe stolidoprocta Boursin (중국쌍검은밤나방 신칭)이 우리나라에서 새로이 발견되었기에 보고한다. 이로서 우리나라에 분포하는 Sineugaph2속 은 4종이 되며, 이들 4종의 생식기특징을 도해하고, 국내외 분포 및 형태적 특징을 논하였다.

농업기술연구소, 임업연구원, 강원대학교 곤충계통분류연구센터, 경상대학교 생물과에 소장된 밤나방과 표본을 공정한 결과 확인된 "Quadrifinaee" (Euteliinae, Sarrothripinae, Chloephorinae, Plusiinae, Catocalinae, Ophiderinae, Hypenodinae, Rivulinae and Hypeninae)에 속하는 한국 미기록종을 24종을 보고한다. 이중 12종은 일본에서만 기록이 있우나, 아시아 내륙에서는 처음 기록된다.

A hyperbolic orbit is expanded in terms of F analogous to the eccentric anomaly of an elliptical orbit: τ p s i n q υ a n d τ p c o s q υ are expressed in terms of F. The true anomaly υ is expressed in terms of F, and F in terms of υ .

A procedure for minimizing the environmental burden and maximizing the efficiency of storage sites used for the final disposal of spent fuel has been proposed. In this procedure, fission products (highly mobile and producing heat) are collected, and uranium and TRU-RE (transuranium-rare earth) oxide are independently stored. The possibility and applicability of radiation measurement for monitoring the nuclear materials effectively throughout the process has been simulated and evaluated. For the simulation, the properties of the chemical processes were analyzed, the major radiation emitters were determined, and the production of nuclear materials by chemical reactions were evaluated. In each process, the content of nuclear material was changed by up to 20% to represent abnormal conditions. The results showed that the plutonium peak was matched with the change in the TRU content and the measured signal was changed linearly with respect to the content change of the plutonium. From the neutron measurement, a linear response of the TRU content variation was obtained. In addition, a logic diagram was developed for the nuclear monitoring. The integration of radiation detections is recommended for monitoring the process effectively and efficiently.