실새삼(Cuscuta australis R. Brown) 흡기(吸器)에서의 통도세포(通導細胞)에 관한 연구

이규배,박종범,이재두,Lee, Kyu-Bae,Park, Jong-Bum,Lee, Chai-Doo 한국현미경학회 1987 Applied microscopy Vol.17 No.1

The elongated filamentous haustorial cells, hyphae, of Cuscuta australis R. Brown penetrated into the vascular tissues of the host plant Trifolium repens L. were studied by the light and electron microscopes. The hyphae reached the host xylem were invaded into the host vessels and then they grew within the host vessels. Finally these hyphae were differentiated into the water conducting elements, xylary hyphae, by thickening of the secondary walls. The hyphae reached the host phloem were branched at the apical regions. These hyphae possessed thin-layered cytoplasm involving the typical features of sieve elements such as the parallel arrays of smooth endoplasmic reticulum, plastids with the clusters of fine starch granules, and mitochondria with the dilated cristae. It was indicated that these hyphae were differentiated into the nutrients conducting elements, phloic hyphae. The structures described were compared with those of other parasitic plants and were discussed in view of the translocation of materials from host to parasite.

식물형태학 분야에서 사용하는 줄기의 구조에 관한 한글 용어의 분석

이규배,Lee, Kyu Bae 조선대학교 기초과학연구원 2008 조선자연과학논문집 Vol.1 No.3

Korean terminologies on stem structures in plant morphology, written incorrectly in many books, were analysed to propose accurately expressed terminologies. 35 books in areas such as general biology, plant biology, plant morphology, and biological dictionaries and glossaries were selected to analyse the accuracy of the terminologies for seed structures, e.g., shoot and shoot system, rhizome, apical dominance, anticlinal and periclinal divisions, and intercalary and lateral meristems. The definition and etymology of the terminologies were traced in 4 textbooks of plant anatomy and 2 dictionaries of biology and botany written in English. On the basis of the definition, etymology, and principles for terminology formation according to the International Organization for Standardization (ISO 704:2000), reasonably expressed Korean terminologies were proposed. All of the 8 terminologies examined in this study were included in the glossary of biological terminologies, published by the Korean Association of Biological Sciences in 2005, and designated as an editorial source for science and biology textbooks for middle and high schools by Ministry of Education in 2007. However, the only 1 of the 8 terminologies described in the glossary were consistent with the proposed expression in the present study. These inconsistencies indicated the need for a reassessment of this glossary of biological terminologies. The validity of the proposed Korean terminologies was tested in a questionnaire sent to 17 professors teaching plant morphology or/and taxonomy at universities. A mean of 91.9% of the total respondents agreed with the Korean expressions proposed in this study. The new, proposed terminologies would facilitate mutual understanding between teachers and students of plant biology.

공기등급, 외기도입구 및 최소환기량 환기설비기준

이규배(Gyu Bae Lee),정재원(Jae Weon Jeong) 대한설비공학회 2022 대한설비공학회 학술발표대회논문집 Vol.2022 No.11

As the importance of ventilation increases, interest in related standards is also increasing. However, the current design standards for ventilation facilities are mixed with design standards for each purpose of the building, and problems such as establishing terms need to be solved. The purpose of this paper is to revise the existing design standard for ventilation facilities by reflecting related domestic and overseas standards. The design standards were revised by combining domestic facility manuals and information such as the American society of heating, refrigerating and air conditioning engineers(ASHRAE). The revised design criteria are outdoor air inlet, outdoor air volume, exhaust and exhaust volume, and air grade directly related to ventilation. The amendments to each standard were described with appropriate examples. The design standards revised in this paper are expected to help standardize ventilation facilities and design engineers in the future.

복사 열저항 제어에 따른 상변화물질 건물 외피의 축열 및 방열 성능 분석

이규배(Gyu Bae Lee),김민성(Min Seong Kim),이재희(Jae Hee Lee),박효림(Hyo Lim Park),정재원(Jae Weon Jeong) 대한설비공학회 2022 대한설비공학회 학술발표대회논문집 Vol.2022 No.6

As interest in building energy saving is rising again, research about phase change materials integrated building envelope are being conducted to improve the thermal performance of the building envelope. However, the phase change materials integrated envelope showed defects such as the heat storage and discharge of it cannot be achieved ideally due to interference with the fixed thermal resistance of the members in the envelope. Therefore, in order to solve this problem, a solution that can control the heat transfer of the phase change materials inside the envelope is required. In this study, a system which controls the radiant heat resistance to the phase change materials was proposed using a cavity and emissivity films inside the envelope. The proposed system was numerically simulated by 1d transient heat transfer with reference building envelope systems through a matlab software. Through simulation, the proposed system analyzed that the summer heat gain decreased by 47.2% ~ 56.1% and the winter indoor heat loss decreased by 11.3% ~ 27.3% compared to the reference systems.

복사 열저항 제어에 따른 상변화물질 건물 외피의 축열 및 방열 성능 분석

이규배(Gyu Bae Lee),김민성(Min Seong Kim),이재희(Jae Hee Lee),박효림(Hyo Lim Park),정재원(Jae Weon Jeong) 대한설비공학회 2022 대한설비공학회 학술발표대회논문집 Vol.2022 No.6

As interest in building energy saving is rising again, research about phase change materials integrated building envelope are being conducted to improve the thermal performance of the building envelope. However, the phase change materials integrated envelope showed defects such as the heat storage and discharge of it cannot be achieved ideally due to interference with the fixed thermal resistance of the members in the envelope. Therefore, in order to solve this problem, a solution that can control the heat transfer of the phase change materials inside the envelope is required. In this study, a system which controls the radiant heat resistance to the phase change materials was proposed using a cavity and emissivity films inside the envelope. The proposed system was numerically simulated by 1d transient heat transfer with reference building envelope systems through a matlab software. Through simulation, the proposed system analyzed that the summer heat gain decreased by 47.2% ~ 56.1% and the winter indoor heat loss decreased by 11.3% ~ 27.3% compared to the reference systems.

복사 열저항 제어에 따른 상변화물질 건물 외피의 축열 및 방열 성능 분석

이규배(Gyu Bae Lee),김민성(Min Seong Kim),이재희(Jae Hee Lee),박효림(Hyo Lim Park),정재원(Jae Weon Jeong) 대한설비공학회 2022 대한설비공학회 학술발표대회논문집 Vol.2022 No.6

As interest in building energy saving is rising again, research about phase change materials integrated building envelope are being conducted to improve the thermal performance of the building envelope. However, the phase change materials integrated envelope showed defects such as the heat storage and discharge of it cannot be achieved ideally due to interference with the fixed thermal resistance of the members in the envelope. Therefore, in order to solve this problem, a solution that can control the heat transfer of the phase change materials inside the envelope is required. In this study, a system which controls the radiant heat resistance to the phase change materials was proposed using a cavity and emissivity films inside the envelope. The proposed system was numerically simulated by 1d transient heat transfer with reference building envelope systems through a matlab software. Through simulation, the proposed system analyzed that the summer heat gain decreased by 47.2% ~ 56.1% and the winter indoor heat loss decreased by 11.3% ~ 27.3% compared to the reference systems.

임진왜란의 기억과 조선시대의 일본인식

李圭倍(Lee Kyu-Bae) 동북아시아문화학회 2008 동북아시아문화학회 국제학술대회 발표자료집 Vol.- No.-

기주식물의 (寄主植物) 유조직 (柔祖織) 속에서 생장하는 실새삼 ( Cuscuta australis R. Brown ) 호흡세포의 미세구조

이규배(Kyu Bae Lee),이재두(Chai Doo Lee) 한국식물학회 1991 Journal of Plant Biology Vol.34 No.2

Two cell types, tip cells and hyphal cells, were found at the front of Cuscuta australis endophyte growing into the stem parenchyma of the host plant, Trifolium repens. Each tip cell developed into an elongate, filamentous hypha. The cells of both types possessed a dense cytoplasm including abundant organelles and enlarged nuclei with the deeply lobed envelope. The unevenly thick walls were observed in certain tip cells. The wall penetrated through the middle lamellase of the host cells and engulfed the debris of broken host cells. Some front cells had the plasmalemma-wall invaginations, which increased the surface area and would facilitate material uptake from the host. No plasmodesmata between the host and parasite cells were found; instead, an apoplastic continuity was established by fused cell walls at the interface of the two partners. The apoplast was thought to be the main route for water and nutrients transport.

자기기생하는 (自己寄生) 실새삼 ( Cuscuta australis ) 에서 세포 화합성에 관한 미세구조 연구

이규배 (Kyu Bae Lee) 한국식물학회 1993 Journal of Plant Biology Vol.36 No.3

Cellular compatibuility in the self-parasitism of Cuscuta australis R. Brown was studied at the ultrastructural level. The front cells of the haustorium penetrated the host stems independently grew within the host tissues and transformed into elongate, filamentous hyphae. Each hyphal cells contained a large nucleus and dense cytoplasm with abundant cell organelles. Multilamellar structures were contained in the cytoplasm and cell walls of the penetrating hyphal cells. When the hyphal cells did not yet invade the host cells, the middle lamella and the fused cellulosic cell walls of the two partners at the host-parasite interface were preserved well. As the invasion of the parasitic hyphal cells progressed, however, the middle lamella was not found at the interface and the host cell walls and plasma membranes were partially broken down. A hyphal cell penetrated deeply into the host cell had a more darkly stained cytoplasm with numerous of cell organelles. In the host cells attacked by the hyphal cells the limiting membranes of plastids were broken down and several vesicles were arrayed near the cell walls. No plasmodesmatal connections between the host and parasite cell walls were found; however, half-plasmodesmata were observed frequently on the side of the hyphal cell walls. These results suggested that the compatibility response in the self-parasitism of Cuscuta was expressed by cell walls, not by plasmodesmata, between the host and the parasite cells.

기생피자식물 (奇生被子植物) 실새삼 ( Cuscuta australis R. Brown ) 의 흡기내 목부의 개체발생

이규배(Kyu Bae Lee),이재두(Chai Doo Lee) 한국식물학회 1991 Journal of Plant Biology Vol.34 No.2

Xylogenesis of the haustoriuam in the parasitic angiosperm Cuscuta australis R. Brown grown on the host plant Trifolium repens L. was studied with light microscopy. As the first event indicating the ontogeny of the haustorial xylem, cell divisions occurred in the fascicular and interfascicular regions of the stele of the parasite stem bearing a mature upper haustoriuim, the portion of haustorium external to host organ. The smaller derivatives contained densely stained cytoplasm and prominent nuclei. It confirmed that these dense cytoplasmic derivataives resulted from the division of the previous vacuolated parenchyma cells. As the haustorium had penetrated the host tissue, the cell division activity extended acropetally from the xylem of the parasite stem toward the base of the haustorium through the interfascicular region of the parasite stem. Thus a strand of the dense cytoplasmic cells was established. At the same time, the densely stained cells adjacent to the xylem of the parasite stem began to differentiate into xylary elements. Eventaually, a strand of haustorial xylem was formed acropetally along the way of the cells with increased cytoplasmic density. The acropetal induction of the division activity of parenchyma cells and its haustorial xylogenesis in the stele of the parasite stem was discussed in relation to a possible generation of morphogenetic or hormonal signal which might lead to a specific pattern of haustorial xylogenesis.