한국산 홍조 참곱슬이 {Plocamium telfairiae (Hooker et Harvey) Harvey}의 형태 및 생식구조

이해복 청주대학교 산업과학연구소 2002 産業科學硏究 Vol.19 No.2

The morphology and reproductive structure of Plocamium telfairiae (Hooker et Harvey) Harvey (Rhodophyta) in Korea were investigated. The thallus is compressed, sympodial, issuing branch two by two alternately from main axis. Thallus is uniaxial, having axial cell and four pericentral cells in transverse section Cortex consists of 1-2 cell-layer, and medulla is thick, with long large elliptic cells. Carpogonial branch develops at margin of thallus, is composed of one carpogonium and two hypogenous cells Cystocarp is ca. 1㎜ in diameter. Carposporophyte consists of several gonimolobes developed from gonimoblast initials, with pericarp. Tetrasporangium anses from inner cortical cell, divided zonately into four tetraspores.

幼弱白鼠 肝細胞內 DNA, RNA 및 PAS 陽性物質에 미치는 Chlorambucil과 Ginseng Saponin의 相互作用에 關한 組織化學的 硏究

閔惠淑,全容赫,羅福瑛 고려대학교 의과대학 1982 고려대 의대 잡지 Vol.19 No.3

The effects of interaction between chlorambucil and crude ginseng extract (ginseng saponin) had teen investigated on liver cell of 90 experimental weanling albino rats from 22 healthy primiparous mother rats by means of histochemical detection as RNA, DNA and PAS positive materials 1. Severe regressive changes of the liver tissue, especially on the portal area, induced by intraperitoneal administration of single dose of chlorambucil rated 0.2㎎/0.1㏄ per 20㎎ of body weight had been protected or recovered from the degeneration by following administration of single dose of the crude ginseng extract rated 1.0㎎/0.1㏄ per 20㎎ of the body weight of young. 2. An abrupt declination of PAS positive material in hepatocyte due to use of chlorambucil was contrasted with a gradual inclination of it induced by use of crude ginseng extract, and the effect of the latter appears to be contributed for recovering the lower PAS reaction into that of the normal on the former hepatic cellular change. 3. A declination of stain property or RNA to Azure B was resulted from the use of chlorambucil, while that of DNA was not affected until 24 hours and later it was increased by 36 hours after the administration. 4. A slight decrease of the staining in both the DNA and RNA was recovered the property by 48 hours after the administration of crude ginseng extract. 5. On concomitant administration of both the chlorambucil and crude ginseng extract the staining property of the RNA to Azure B was shown a decrease in the initial stage, and was recovered in that of the normal immediately thereafter without influencing that for DNA.

WC-Co 초경 소지에 R.F sputtering법으로 제조한 TiB₂박막의 열처리 특성

이해석,임재복,김규호 嶺南大學校 工業技術硏究所 2004 工業技術硏究所論文集 Vol.32 No.1

TiB₂ thin films were deposited by R. F sputtering process on the WC-Co cutting tool. The growth rate of as-deposited films increased with R. F power. As-deposited films were amorphous by XRD measurement. The thermal annealing was performed to crystallize as-deposited films at temperature, which was varied from 900℃ to 1100℃. TiB₂ thin films annealed at 900℃ showed TiB₂, TiB peaks. As annealing temperature increased to 1100t, the intensity of the (101) and (110) peaks of TiB2 became sharp. The morphology of as-deposited films exhibited the granular structure by SEM observations. As the R. F power increased, the spherical particles of the films were coalesced and showed the large granular structure. The films annealed at 900℃ showed a fine crystallized grain and columnar structure. Whereas, the melt phase was formed on the surface of the films above 1000℃. The results of EDS analysis of melt phase show that the melt phase was composed of W, Co elements. The hardness of the films annealed increased with increasing thermal annealing temperature. Whereas, in the case of as-deposited films above R. F power 150W, the hardness of the films annealed above 1000℃ decreased because of melt phase.

미세가공 정전용량형 초음파 탐촉자 개발 (Ⅰ) : 진동 막 거동 분석 Analysis of the Membrane Behavior

김기복,안봉영,박해원,김영주,이승석 한국비파괴검사학회 2004 한국비파괴검사학회지 Vol.24 No.5

본 연구는 고효율 비접촉 초음파 송수신이 가능한 미세가공 정전용량형 츠음파 탐촉자(cMUT)를 개발하기 위한 기초연구로 수행되었다. cMUT의 주요 구성요소인 미세 진동 막의 거동-공진 주파수, 막 번위, 막 붕괴 변위, 막 붕괴전압을 이론적인 해석과 유한요소해석을 이용하여 분석하였다. 진동 막의 두께와 크기, 회생층 두께, 전극의 두께와 크기 등과 같은 cMUT의 설계인자를 검토하였다. 분석결과 진동 막의 공진주파수는 진동 막의 두께가 증가함에 따라 증가하였으며 직경에 따라서는 감소하였다. 직류 마이어스 전압이 증가함에 따라 진동 막의 변위는 증가하였으며 진동 막의 붕괴전압을 분석하였다. This study was conducted to develope a capacitive micromachined ultrasonic transducer (cMUT) which enable to high efficient non-contact transmit and receive the ultrasonic wave in air. Theoretical analysis and finite element analysis of the behavior of membrane (such as resonance frequency, membrane deflection, collapse deflection and collapse voltage) of the cMUT were performed. The design parameters of the cMUT such as the dimension and thickness of membrane, thickness of sacrificial layer, thickness and size of electrode were estimated. The resonance frequency of the membrane increased as the thickness of the membrane increased but decreased as the diameter of the membrane increased. The deflection of the membrane increased as d-c bias voltage increased. The collapse voltage of the membrane was analyzed.

퍼지를 적용한 설비보수의 최적 일정 결정

이상복,김국,안해일 서경대학교 1997 論文集 Vol.25 No.-

In this Paper, we try to search optimal Schedule of Facility Maintenance with Fuzzy Application. Optimal Schedule of Facility Maintenance means minimum Maintenance Cost which are composed corrective Maintenance cost and preventive Maintenance Cost. Until now, Optimal Schedule of Facility Maintenance are calculated with possibility which are got by Facility History Book. The possibility are not verified on Precision special new Facility. In this paper, we consider both Facility History Book(possibility) and Expert Knowledge which express Fuzzy Application. Although we don't prove better Solution by mathematical, but one know this method considered possibility and fuzzy better than other method considered only possibility. We give numerical example.

장애학생의 학교적응유연성에 관한 연구

오혜경,이경복 한국사회복지정책학회 2006 사회복지정책 Vol.24 No.-

남해안 외나로도 해안 조간대의 식물상

이해복 청주대학교 산업과학연구소 2006 産業科學硏究 Vol.23 No.2

A spring intertidal flora of Oenarodo Island, south coast of Korea was investigated on May 6, 2004. As a result, total 83 marine benthic algal species including 12 chlorophytes, 16 phaeophytes, 55 rhodophytes were identified. As a spring intertidal flora, the total number of occurring species of this site was the highest one among the close vicinity area. Some of the noticeable flourishing species at the intertidal belt were noted.

사람태아 간의 적혈구형성세포의 미세구조 변화

김해숙,김경용,이원복,김동창 중앙대학교 의과대학 의과학연구소 1992 中央醫大誌 Vol.17 No.3

The ultrastructural changes of erythropoietic cells were studied according to the maturation stages in human fetal liver. The erythropoietic cells were observed in hepatic plates and the most undifferentiated erythropoietic cell was proerythroblast. The cytoplasm of the cell had several mitochondria, RERs and low electron density. The oval nucleus had prominent nucleolus and slight peripheral heterochromatin along the inner nuclear membrane. The size of cells and nuclei became smaller with clumping of chromatin in the course of successive maturation stage, i.e. basophilic, polychromatophilic, and eosinophilic erythroblasts. The nucleus was enucleated from full-mature eosinophilic erythroblast and phagocytized by Kupffer cell lining sinusoidal wall. The intracellular organelles underwent, degeneration and the size became smaller with maturation. But the electron density of cytoplasm increased due to accumulation of hemoglobin. The erythropoietic cells appeared in cell mass composed of 5-10 cells, and made bleb-like cytoplasmic processes. In addition, the cells in granulocytopoiesis and megakaryocytopoiesis were found. In summary, it is suggested that the erythropoiesis formed in hepatic plates is initiated by hemopoietc stem cell originated from mesoderm of yolk sac.

보육시설 과학 특별활동 프로그램의 개발과 적용

조복희,곽혜경,한유미,양연숙,손경화 한국영유아보육학회 2003 한국영유아보육학 Vol.0 No.32

The purpose of this study was to develop early childhood science activities, which could be utilized as an extracurricular program in the day-care center. The program is based on the Constructivist theory(Piaget and Vygotsky) and the nation-wide survey data on the extracurricular programs and science activities in the day-care center. After the manuals for the program was monitored and corrected by the professionals, the application of each activities was empirically tested by the teachers in the day-care setting. The effects of the sample program(6 activities) were conducted using Tegano, Sawyers & Moran(1989)'s Scientific problem-solving scale and Lee(2001)'s Scientific attitude scale. Subject of thirty nine children were administered by the pre-test and post-test and experimental group participated the program for six weeks. The results showed that the program was effective for enhancement of scientific problem-solving ability and scientific attitude of young children in day-care setting.

호텔원가회계 개선방안에 관한 연구 : Activity-Base Costing 시스템을 중심으로 Activity-Base Costing Accounting

최해수,김동훈,안홍복 慶北大學校出版部 1994 經商論集 Vol.22 No.4