• 한국균학회지
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• 제24권4호통권79호
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• pp.274-279
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• 1996

민자주방망이버섯(Lepista nuda)의 분리균을 여러 가지 곡물에서 키운 결과, 조에서는 잘 자랐으나, 수수에서는 잘 자라지 않았다. 이들 중에서 조를 선택하여, 여러 가지 유기물 혹은 금속 첨가물을 첨가한 실험 결과 조배지에서는 질소 성분이 필요하다는 것이 밝혀졌다. 이와 반면에 우리 주변에 흔히 있는 아카시나무 톱밥을 이용한 배지에서는 질소성분과 무기염류의 효과가 여러 가지로 나타난다. 그러나 유기물로서는 흔히 사용되는 미강이 가장 좋은 첨가물로 밝혀졌다. 여기서의 연구는 고형배양을 통하여 직접 균사를 배양하였기 때문에 그 의의가 크다고 하겠다.

• Current Photovoltaic Research
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• 제7권3호
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• pp.65-70
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• 2019

As a demand of higher power photovoltaic modules, shingled, multi-busbar, half-cell, and bifacial techniques are developed. Multi-busbar module has advantage for large amount of light havesting. And, half-cell is high power module for reducing resistive losses and higher shade tolerance. Recently, researches on multi-busbar is focused on reliability according to adhesion and intermetallic compound between Sn-Pb solder and Ag electrode. And half-cell module is researched to comparing with full-sized cell module for structure difference. In this study, we investigated the factors affecting to efficiency and adhesion of multi-wires half-cell module according to wire thickness, solder thickness, and flux. The results of solar simulator and peel test was that peel strength and efficiency of soldered cell is not related. But samples with flux including high solid material showed high efficiency. The results of FE-SEM and EDX line scan on cross-section between wire and Ag electrode for different flux showed thickness of solder joint between wire and Ag electrode is increasing through solid material increasing. Flux including high solid material would affect to solder behavior on Ag electrode. Higher solid material occurred lower growth of IMC layer because solder permeate to sider of wire ribbon than Ag electrode. And it increased fill factor for high efficiency. In soldering process, amount of solid material in flux and solder thickness are the factor related with characteristic of soldered photovoltaic cell.

• KSBB Journal
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• 제18권4호
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• pp.306-311
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• 2003

융합단백질의 절단을 위해 EK를 고정화하여 액상 절단반응과 같은 80％의 절단수율을 얻을 수 있었다. 그리고 니켈 친화칼럼을 이용하여 간단한 정제공정을 구축하였다. 공유결합한 EK의 경우 니켈친화 결합한 EK보다 높은 재접힘 수율을 나타내었고 풀림과 재접힘을 이용하여 효소의 초기 활성을 회복함에 따라서 반복사용을 통한 경제적인 절단공정을 구축할 수 있게 되었다. 그러나 고정화 과정에서 효소의 활성이 감소하는 문제점과 고정화 수율을 높이기 위한 연구가 필요하다.

• 한국유기농업학회지
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• 제10권4호
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• pp.69-78
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• 2002

춘작 재배시 가공용 감자 품종의 품질 요인을 분석하고 저장중 glucose 및 sucrose 함량과 chip color의 변화를 알기 위해하여 99년 4월 1일부터 7월 10일까지 재배한 감자 품종을 104일 동안 저장하여 춘작 재배에 가장 좋은 품질을 나타내는 품종 및 요인을 밝혀내기 위한 조사 결과는 다음과 같다. 1. 생육 중 잎의 질소 농도는 생식 행장 초기와 괴경 성숙 단계인 개화 말기에 잎의 질소 농도가 급격히 낮아지는 경향이 있었다. 2. 생육중 잎의 K+ 농도는 종생종은 70일 만생종인 snowden은 90일부터 높게 나타나 약 20일간의 차이를 보였다. 3. Snowden 품종은 춘작재배시 110일 이상 수확 일수 확보가 어려워 춘작 재배 품종으로는 부적합한 것으로 나타났다. 4. Solid 함량과 sugar 함량은 chip color에 많은 영향을 주었으며, solid가 높을수록 sugar 함량이 낮고 저장 중품질의 변화가 적었다.

• 한국생물공학회:학술대회논문집
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• 한국생물공학회 2001년도 추계학술발표대회
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• pp.85-88
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• 2001

hGH 와 GST 절편으로 구성된 융합 단백질의 고정화 UK 칼럼에 의한 절단 반응 후 용출액의 pH를 3.5 로 낮춤으로써 이물질들을 침전시키고 이를 expanded bed chromatography 칼럼에 통과시킨 결과, 이물질들의 제거와 hGH 단량체의 흡착분리가 동시에 이루어겼다 . 흡착된 단량체는 NaCl 에 의해 용출되었으며 이 단계의 수율은 거의 100% 이었다 , 따라서 칼럼에 의한 절단 반응과 산 침전에 의한 이물질 침잔 반응 EBA 에 의한 이물질 제거 및 단량체 회수 반응을 연속적으로 진행할 수 있는 기초를 제시하였다 . 또한 고정화된 UK 는 guanidine HCl(6M)을 이용하여 unfolding 시키고 이를 세척하여 refolding 시킨 결과 20 회의 반복적인 처리 후에도 초기 활성의 약 80% 수준을 유지하였다. 이는 UK 가 공유결합된 상태에서 solid-phase refolding 이 가능하다는 증거이며, 고정화 효소 칼럼의 수영을 크게 향상시켜 경제성을 확보하는 방안으로 이용될 것으로 기대된다.

• 약학회지
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• 제37권5호
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• pp.532-537
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• 1993

Angiogenesis refers to the formation of new capillary blood vessels, or neovascularization occurring under various physical conditions, such as development of the embryo, formation of corpus luteum, wound healing and pathological conditions including tumor growth and metastases, hemangiomas, diabetic retinopathy, rheumatoid arthritis. There are many evidences that angiogenesis is important for the progressive growth of solid tumors and also permits the shedding of metastatic tumors from the primary site. Thus, treatment of angiogenesis inhibitors might be a novel strategy for tumor growth inhibition. Normal vascular endothelial cells are in a state of differentiation and angiogenic endothelial cells migrate and proliferate, and they subsequently differentiate into vessel-forming quiescent phenotype cells, Therfore, it was speculated that a modifier of cell differentiation could also affect angiogenesis. In order to identify new antiangiogenic factors, the research was conducted to estimate the inhibitory activities of cell differentiation agents by means of chick embryo chorioallantoic membrane(CAM) assay. Hence, we have established the CAM assay for the screening of antiangiogenic agents. Using the CAM assay, we found that ursolic acid, a tumor cell differentiation-inducing agent, showed a markedly inhibitory effect on chick embryonic angiogenesis.

• 대한치과의사협회지
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• 제51권3호
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• pp.138-147
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• 2013

Orthodontic tooth movement is a unique process which tooth, solid material is moving into hard tissue, bone. Orthodontic force in general provides the strain to the PDL and alveolar bone, which in turn generates the interstitial fluid flow(in detail, fluid flow in PDL and canaliculi). As a results of matrix strain, periodontal ligament cells and bone cells are deformed, releasing variety of cytokines, chemokines, and growth factors. These molecules lead to the orthodontic tooth movement(OTM). In these inflammation and tissue remodeling sites, all of the cells could closely communicate with one another, flowing the information for tissue remodeling. To accelerate the rate of OTM in future, local injection of single growth factor(GF) or a combination of multiple GFs in the periodontal tissues might intervene to stimulate the rate of OTM. Corticotomy is effective and safe to accelerate OTM.

• 한국결정성장학회:학술대회논문집
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• 한국결정성장학회 1998년도 PROCEEDINGS OF THE 14TH KACG TECHNICAL MEETING AND THE 5TH KOREA-JAPAN EMGS (ELECTRONIC MATERIALS GROWTH SYMPOSIUM)
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• pp.3-5
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• 1998

The interest in the use of borate crystals in ultraviolet(UV) nonlinear optics(NLO) has increased because all solid-stste UV lasers obtained with NLO are in highly demand. Much effort has been spent on developing borates series, such as{{{{ { beta -BaB }_{2 } {O }_{4 }(BBO), {LiB }_{ 3}{O }_{5 }(LBO)}}}} and{{{{{ CsKiB}_{6 }{O }_{10 }(CLBO)}}}} in this decade. Recently another new borate crystals, {{{{{ YCa}_{4 }O({BO }_{3 })_{3}}}}} and{{{{{Gd }_{x }{Y }_{1-x }{Ca }_{4 }O({BO }_{ 3})({Gd }_{x }{Y }_{1-x }COB)}}}} have been developed by the present authors. Here, the growth and NLO properties of YCOB and {{{{ {Gd }_{ x} {Y }_{ 1-x} }}}}CO B crystal are reported and their properties discussed in relation to those of other nonlinear optical crystals, such as LBO.

• 한국결정성장학회:학술대회논문집
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• 한국결정성장학회 1998년도 PROCEEDINGS OF THE 15TH KACG TECHNICAL MEETING-PACIFIC RIM 3 SATELLITE SYMPOSIUM SESSION 4, HOTEL HYUNDAI, KYONGJU, SEPTEMBER 20-23, 1998
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• pp.73-77
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• 1998

Langasite(La3Ga5SiO14) is a new piezoelectric material which is similar to quartz, LN(LiNbO3) and LT(LiTaO3) in its acoustic behavior. In this study, pure Langasite and Langasite family groups were synthesized by the solid state reactions in air. For the synthesis process, diffusion species were investigated and sintered body of synthesized powders were studied on dielectric property according to surface microstructures.

• The Journal of Asian Finance, Economics and Business
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• 제2권2호
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• pp.27-34
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• 2015

The 21st century belongs to biotechnology as it made profound impact in the field of health, food, agriculture and environmental protection. India's biotechnology industry is poised to record substantial growth, perhaps even overtake the robust IT industry. The objectives of the study are to determine the existing HR practices in Biotech Industry and to understand the need for the up gradation in existing HR Policies. Conclusive and descriptive research design has been used. Data is collected from 122 employees in 23 companies of Biotech Industry. It was found that Biotechnology companies require managers with unique qualities. The lack of solid managerial training and the associated risk of failure often have long-term consequences for the careers of research professionals. The efforts to achieve excellence through a focus on learning, quality, teamwork, and reengineering are driven by the way organizations get things done and how they treat people. Biotech industry is trying to establish itself in India for last one decade but is not showing any phenomenal growth because they still do not valuing their human resource as much they should be.