• Journal of the Optical Society of Korea
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• 제6권3호
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• pp.83-86
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• 2002

Nanoscopic emission from periodic nano-hole arrays in thick metal films is studied experimentally. The experiments give direct evidence for SP excitations in such structures. We show that the symmetry of the emission is governed by polarization and its shape is defined the interference of SP waves of different diffraction orders. Near-Held pattern analysis combined with the far-Held reflection and transmission measurements suggests that the SP eigenmodes of these arrays may be understood as those of ionic plasmon molecules.

• ALGAE
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• 제26권4호
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• pp.289-297
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• 2011

Ceramium riosmenae sp. nov. is described from Baja California Sur, Mexico based on morphological and molecular data. The new species is characterized by erect thalli only, penetrating rhizoids on Gracilaria, 7-8 periaxial cells, five cortical initials per periaxial cell, complete cortication throughout, an average of 11-12 segments between branching points, rare adventitious branchlets, and cruciate tetrasporangia. Although C. riosmenae sp. nov. is similar to C. interruptum, C. sinicola, and C. codicola reported from Baja California Sur, Mexico in size and habit, it differs from these species in the number of cortical initials, habit, degree of cortication, host, and the shape of rhizoidal tips. C. riosmenae is separated from C. interruptum with interrupted cortication and four cortical initials from C. sinicola with spins near the apex and incomplete cortication near the base and from C. codicola with bulbous rhizoids on Codium. Our rbcL sequences reveal sufficient sequence divergence (2.4-3.9%) between C. riosmenae and C. interruptum, C. sinicola, and C. codicola to warrant species recognition and to separate C. riosmenae from these species on a phylogenetic tree.

• 한국자기공명학회논문지
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• 제2권1호
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• pp.41-49
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• 1998

A linear undecapeptide, Substance P (SP) is involved in a wide variety of physiological processes such as pain, inflammation, salivation, and hypertension. Tertiary structure of SP in dodecylphosphocholine (DPC) micelles has been investigated by CD, NMR spectroscopy, and DGII calculation. CD spectrum of SP in the presence of 7.5 mM DPC micelles does not show any favorable secondary structure. The tertiary structure determined by NMR spectroscopy and DGII calculation shows that the Phe7-Phr8-Gly9-Leu10 region adopts a turn structure, while the N-terminal region is quite flexible. Both prolines in SP exist preferentially as the trans isoforms and the aromatic ring of Phe7 protrudes outward. Conformation of SP may be restrained by the contact of the Phe7 aromatic ring with the hydrophobic side chains of the DPC micelles and this interaction induces a turn structure. Structure of SP in aqueous solution in the presence of DPC micelles can represent a good model to study the conformation recognized by the receptor near neutral membrane.

• 천문학회보
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• 제36권1호
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• pp.51.2-51.2
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• 2011

The Spitzer Public Legacy Survey of the UKIDSS Ultra Deep Survey (SpUDS) has been carried out with four IRAC bands and one MIPS band (24um). SpUDS surveys 1 square degree of the UDS field, that has been covered by one of the deepest near IR surveys and by various multiwavelength observations from X-ray to radio (XMM, GALEX, Subaru, SCUBA, VLA). We present a summary of the photometric data including number counts derived at 3.6-24 microns. In conjunction with extensive multiwavelengh data, we are able to show the multiwavelenght color distribution of MIR sources, and how different SED types contribute to the number counts.

• Applied Microscopy
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• 제41권3호
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• pp.205-213
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• 2011

조피볼락, Sebastes schlegeli 소화관 주변에는 다수의 아니사키 스가 기생하고 있었으며, 몇몇 개체들은 간의 표면에 존재하고 있었다. 유전학적 결과 조피볼락에 기생한 아니사키스는 3종으로 분석되었으며, Hysterothylacium sp.가 가장 많이 분포하고 있었다. Hysterothylacium sp.는 Anisakis simplex보다 짧고 가늘었다. 두 종 모두 전방부분에는 lip, 입, 신경환, 분비공, 분비관이 관찰되었다. 두 종 모두 중간부분에는 식도, 위, 장이 존재하고 있었 지만, intestinal ceacum과 ventricular appendage는 Hysterothylacium sp.에서만 관찰되었다. Hysterothylacium sp.의 후방부분 끝에는 conical nodulose apex이 관찰되었지만, A. simplex의 후방부분 끝에는 spine이 관찰되었다. SEM으로 관찰한 결과 Hysterothylacium sp.의 입 주위에는 3개의 lip이 존재하고 있었는데, dorsal lip은 넓이 65 ${\mu}m$ 내외였고, 한쌍의 lateroventral lip은 넓이 60 ${\mu}m$ 내 외였다. Lip의 표면에는 넓이 8 ${\mu}m$ 내외의 유두돌기 한쌍이 존재하고 있었다. Hysterothylacium sp.와 A. simplex의 충체 넓이는 각각 480 ${\mu}m$와 900 ${\mu}m$ 내외로 측정되었다. Hysterothylacium sp. 의 lateral alae는 높이 7 ${\mu}m$ 내외였으며, cornical nodulose apex에 존재하는 돌기는 지름 약 3.3 ${\mu}m$였다. A. simplex의 후방부분 끝 에는 높이 약 20 ${\mu}m$의 spine이 관찰되었다. 조피볼락 장의 내강 에 존재하는 아니사키스들은 대부분 Hysterothylacium sp.였고, 점막주름 근처 혹은 점막하층에 기생하고 있었다. 아니사키스의 기생으로 인하여 숙주의 점막상피에는 다수의 점액세포가 증가하였다.

• 한국해양학회지
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• 제28권4호
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• pp.305-312
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• 1993

본 연구는 남해안 삼천포시 근해역의 저서다모류군집의 특성을 조사하기 위하여 1989년 9월 10월에 수행되었다. 다모류는 전체저서동물중 개체수에 있어서 61.7%를 점 하는 가장 우점하는 동물군으로서 총 50종이 채집되었으며, 평균서식밀도는 112 indiv.m/SUP -2/이었다. 대체로 삼천포항과 사량상도 부근에서 출현종수가 많았고 서 식밀도가 높았다. 우점하는 다모류는 Terebellides horikoshii (17.1%), Lumbrineris longifoli (14.7%), Mediomastus sp. (11.5%) 등이었다. 집괴분석 결과 조사지역은 사 량도를 중심으로 내만역과 외만역으로 구분되었다. 내만역에는 Terebellides Hetermastus 군집, 외만역에는 Lumbrineris-Mediomastus 군집이 형성되었다. Terebellides-Heteromastus 군집보다 Lumbrineris-Mediomastus 군집에서 다양한 종이 높은 밀도도 서식하였다. 특히 Heteromastus sp. 는 Terebellides-Heteromastus 군집 에서만, Mediomastus sp.는 Lumbrineris-Mediomastus 군집 출현하였다.

• Journal of Species Research
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• 제9권1호
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• pp.56-67
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• 2020

Eight new species of two genera Dysidea and Euryspongia (Demospongiae: Dictyoceratida: Dysideidae) are described from Gageodo, Ulleungdo, Geomundo, and Jejudo Islands, Korea. Four new species of the genus Dysidea are differentiated by the fibre structure, cored detritus, and fibre arrangement. Dysidea mureungensis n. sp. is characterized by the honeycomb shape of surface and no distinction between primary and secondary fibres. Dysidea glavea n. sp. differs by large sands cored in fibres and that the membrane easily separates from fibres. Dysidea geomunensis n. sp. has fibres that are thinner than those of D. glavea n. sp.. Dysidea corallina n. sp. is characterized by folded fan shape and the arrangement of secondary fibres. Four new species of the genus Euryspongia are differentiated by the fibre structure, cored detritus, shape of sponge, and fibre arrangement. Euryspongia radicula n. sp. is very different from other species by having regularly arranged fibres. Euryspongia spina n. sp. has a fence-like skeletal structure. Bridged type secondary fibres are arranged near the surface and web types are at the base of fibres. Euryspongia flabellum n. sp. has a very unique wide, thin leaf-like shape. String-like primary fibres of E. linea n. sp. are very unique and cored with large sized sands.

• 식물병연구
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• 제11권2호
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• pp.198-200
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• 2005

최근 수년간 김천지역 대부분의 포도 과수원에 심하게 발생되었던 일명 '흰송이' 증상을 나타내는 흰가루의 주 미생물은 포도 표면에 존재하면서 포도주 발효시 중요한 문제를 일으키는 효모균 Hanseniaspora (Kloeckera) sp.으로 동정되었으며, 이러한 증상의 발생은 과도하게 사용된 당분과 관련이 있을 것으로 생각된다.

• 문화기술의 융합
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• 제8권1호
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• pp.461-468
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• 2022

이 논문에서는 지하주차장 화재 시 스프링클러 작동 여부에 따른 천장 위 단열재의 착화 여부에 관해 연구하였다. 스프링클러 작동 여부에 따라 동일 지점의 온도변화를 측정할 경우 시나리오 1에서는 화재와 인접한 천장부의 뿜칠재(SP-2)와 천장 단열재(발포 폴리스티렌)의 경계지점의 화재 내부온도는 658.27 ℃로 분석되었으며, 천장 단열재(발포 폴리시티렌)의 발화점인 427 ℃보다 최대 내부온도가 높아 화염이 천장 단열재에 착화되어 화재가 확산하는 것으로 나타났다. 시나리오 2에서는 화재와 인접한 천장부의 뿜칠재(SP-2)와 천장 단열재(발포 폴리스티렌)의 경계지점의 화재 내부온도는 53.10 ℃로 분석되었으며 뿜칠재(SP-2)와 천장 단열재 (발포 폴리스티렌)의 경계지점 최대 내부온도가 발화점 이하가 되어 화염이 천장 단열재에 착화되지 않았다. 이로 인해 스프링클러 작동 여부에 따라 천장 단열재의 점화 가능성을 예측할 수 있었다.

• Archives of Plastic Surgery
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• 제48권4호
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• pp.457-461
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• 2021

Background Pedicled perforator flaps can present postoperative complications similar to those encountered in free flap surgery. Beyond a clinical evaluation, there is still no reliable technical aid for the early prediction of vascular issues. The aim of this study was to assess the support of near-infrared spectroscopy technology as an intraoperative tool to anticipate postsurgical flap ischemia. Methods We prospectively enrolled 13 consecutive patients who were referred to our hospital from March 2017 to July 2018 and required a reconstructive procedure with a pedicled fasciocutaneous perforator flap. We measured flap peripheral capillary oxygen saturation (SpO₂) in each patient with a Somanetics INVOS 5100C Cerebral/Somatic Oximeter (Medtronic), both before and after transposition. Patient demographics, operative data, and complications were then recorded during the following 6 months. We analyzed the data using the Wilcoxon signed-rank test and linear regression. Results The mean flap SpO₂ before and after transposition was 92%±3% and 78%±19%, respectively. The mean change in SpO₂ was 14%±17%, with a range of 0% to 55%. The change in saturation and mean saturation ratio were significantly different between patients with and without postoperative flap necrosis. Conclusions An immediate quantitative analysis of flap peripheral capillary SpO₂ after transposition has never before been described. In our experience, an intraoperative drop in SpO₂ equal to or greater than 15%-20% predicted vascular complications in pedicled perforator flaps. Conversely, flap size and rotation angle were not correlated with the risk of flap necrosis.