• Proceedings of the Korea Technical Association of the Pulp and Paper Industry Conference
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• 2004.11a
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• pp.139-142
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• 2004

• Journal of Photoscience
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• v.9 no.2
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• pp.94-97
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• 2002

Light is one of the most important environmental factors that influence plant growth and development. It does not function independently but exerts its role through coordinated interactions with intrinsic developmental programs, such as hormonal regulation. One typical example is hypocotyl growth in which light signals are modulated through growth hormones. However, the underlying molecular mechanisms are largely unknown. We demonstrated that brassinosteroids play an important role in the light signal transduction in etiolated hypocotyl growth. A light-responsive Ras-like G-protein, Pra2 from pea, physically and functionally interacts with a cytochrome P450 that specifically catalyzes C-2 hydroxylation in brassinosteroid biosynthesis. The cytochrome P450 expression, along with Pra2, is induced in the dark and predominantly localized in the rapidly elongating zone of etiolated pea epicotyls. Transgenic plants with a reduced level of Pra2 exhibit a dark-specific dwarfism, which is completely rescued by brassinosteroid application. On the contrary, overexpression of the cytochrome P450 results in enhanced hypocotyl growth even in the light, which phenocopies the etiolated hypocotyl growth. It is therefore envisioned that Pra2 is a molecular switch that mediates the crosstalk between light and brassinosteroids in the etiolation process.

• Korean journal of applied entomology
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• v.16 no.4 s.33
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• pp.193-197
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• 1977

Seeds of pea cultivars susceptible to damping-off caused by Pythium ultimum produced sugars intheir exudates in half the time required for resistant cultivars. Also, the amount of reducing sugars was much greater in seed exudates of susceptible than resistant cultivars. Raffinose, melibiose, sucrose, glucose, and fructose (but not maltose, xylose or ribose) were identified in both resistant and susceptible cultivars; however, more glucose and sucrose were detected in seeds from susceptible than from resistant cultivars. Pythium ultimum grew more profusely around seeds from, and in exudates of, susceptible than resistant cultivars.

• Korean Journal of Environmental Agriculture
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• v.4 no.1
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• pp.43-51
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• 1985

To identify amino acid conjugates of indole-3-acetic acid(IAA) in plants, 23 amino acid conjugates of IAA were synthesized and characterized by UV and IR spectroscopies, and thinlayer and high performance liquid chromatographies. In etiolated pea(Pisum sativum L. var. Sparkle) shoots, aspartic and glutamic acid conjugates of IAA were tentatively identified as metabolites of endogenous IAA by thin-layer and high performance liquid chromatography, and by alkaline hydrolysis of the conjugates.

• Proceedings of the KIEE Conference
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• 2011.07a
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• pp.1578-1579
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• 2011

본 논문에서는 고분자 절연체가 인가된 전압의 시간에 따라 변화하는 공간전하와 전도 전류의 영향에 대하여 조사를 하였다. 또한 극성반전에 따른 공간전하의 분포와 전도 전류에 변화에 대한 연구를 실시하였다. 기존의 공간전하 분포 측정법들은 주로 고분자 절연재료 내에서 공간전하분포의 측정만을 목표로 한 반면에 공간전하 측정법 중의 하나인 PEA(Pulsed Electro-Acoustic method)을 개선시켜 공간전하와 전도전류의 동시 측정을 가능하게 하였다. 개선된 PEA법은 시간변화에 따른 공간전하와 전기전도의 직접적인 상관관계와 미리 형성 되어 있는 공간전하가 전기전도 및 절연특성에 미치는 영향을 직접적으로 분석할 수 있는 장점을 가지고 있다. 이러한 공간전하와 전류의 동시 측정법을 이용하여 연구하였다.

• The Transactions of The Korean Institute of Electrical Engineers
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• v.59 no.12
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• pp.2225-2229
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• 2010

In this study, we have investigated the effects of space charge on the conduction current with the variation of applied time of electric field in polymer insulators. We had also improved the PEA method, and then we could measure a simultaneously the space charge and the conduction current in insulators under the DC electric field. From this experiment, we have known the variation of conduction current due to the existence of space charge in XLPE1 and XLPE2.

• Interdisciplinary Bio Central
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• v.5 no.4
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• pp.8.1-8.3
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• 2013

Unlike the traditional view, it is not mysterious about how G. Mendel chose the seven characters of the pea, Pisum sativum, that he studied. He first chose the pea that met three conditions he set up and repeated experiments for two years. Apparently, he knew that those characters were controlled by countable elements. Then, he derived the prediction on the basis of his idea about the elements, and selected the seven characters that satisfied the prediction. He knew "no prediction no science". In population genetics the Hardy-Weinberg principle is well known and cited in many papers and books. However, Mendel already derived the same principle in his paper, because he was acquainted also with physics and mathematics. Actually, the principle was trivial when they derived, but not at all when Mendel did. It is also well known that Mendel's laws were forgotten and rediscovered at the term of the 19th century. That may not be true either. His laws were internationally well known before the rediscovery. In fact, the 1881-year version of the Encyclopedia Britannica contains his laws.

• Applied Biological Chemistry
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• v.29 no.4
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• pp.399-406
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• 1986

2-Acylaminobenzothiazole derivatives were synthesized from 2-aminobenzothiazole and acylchloride. Benzothiazolylurea derivatives were syntesized from 2-minobenzothiazole and phenylisocyanate. The products were identified by UV, IR, $^1H-NMR$, $^{13}C-NMR$ spectra with 2-acetamidobenzothiazole(I), 2-propionamidobenzothiazole(II), 2-butamidobenzothiazole(III), 2-benzamidobenzothiazole(IV). The compounds were tested for their phytotoxicity on the germination and seedling growth of rice, radish and green pea plants, It was found that treatment of 500ppm concentration each of 2-acetamidobentothiazole, 2-propionarmidobenzothiazole and 2-butamidobenzothiazole strongly inhibited of seedling growth of the radish and green pea.

• 제어로봇시스템학회:학술대회논문집
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• 2000.10a
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• pp.453-453
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• 2000

This paper presented Fuzzy logic application to Electrical power system analysis for fault location estimation in distribution lines and apply the Power system theory to be fuzzy logic database. The case study referred to the Overhead distribution line of the Provincial Electricity Authority (PEA.), Thailand which mostly the distribution line of PEA. are Radial schemes. These benefits include reduced outage time, help in locating momentary faults, enhance safety to the line crews and provide notification of an outage without receiving calls from the consumer, Which these benefits also increase Reliability, Stability and Efficiency.

• Food Science and Biotechnology
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• v.18 no.2
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• pp.425-431
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• 2009

Antimicrobial coating on chicken carcasses may reduce the effects of cross-contamination and improve product shelf-life and safety. Thyme oil was mixed at 0.5%(v/v) with a pre-gelatinized pea starch coating solution. The coating solution was spread on chicken breast meat after inoculation with selected spoilage and pathogenic bacteria. After inoculation, the chicken meats were packaged in plastic bags and stored at $4^{\circ}C$. During 12 day storage, total aerobic bacteria, lactic acid bacteria, and inoculated organisms were counted at 4 day intervals. Thyme oil treatments reduced the viability of Salmonella as well as the growth of Listeria and Pseudomonas by 2 log CFU/g, and appeared to eliminate inoculated Campylobacter during storage. The addition of thyme oil increased the viscosity of the pre-gelatinized pea starch solution. The results suggested that thyme oil inclusion in an edible starch coating may be a satisfactory delivery system to enhance the safety of processed fresh meat.