• Title/Summary/Keyword: Rich media

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Effect of Substrates on the Growth and Flowering of Freesia hybrid 'Gold Rich' in Nutrient Culture (프리지아(Freesia hybrida) '골드리치'의 양액재배 시 인공배지별 생육 및 개화특성)

  • Lee, Jin-Jae
    • Horticultural Science & Technology
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    • v.35 no.1
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    • pp.30-37
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    • 2017
  • This study was conducted to determine the effects of various growth substrates on the growth and flowering of hydroponically grown Freesia hybrid 'Gold Rich'. Perlite, peat moss and a perlite: peat moss mixture (1 : 1 ratio, v / v) were used as the growing media. The greatest plant height before flower bud differentiation was attained using mixed medium compared to the others. The type of medium used did not influence leaf number, mineral content or SPAD value in leaves. Flowering began at 137 days after planting in mixed medium, which was 13 days earlier than in perlite medium. The whole plant fresh weight was 21.3 g heavier in mixed medium than in perlite medium (40.9 g). A similar result was obtained for shoot length, with the highest value (96.6 cm) obtained in mixed medium, i.e., 20 cm higher than in perlite medium (76.6 cm). Floret number per plant was also the highest in mixed medium (14.4), i.e., 1.7 - times higher than in perlite medium. Therefore, among the substrates tested in this experiment, we recommend using mixed perlite: peat moss medium (1 : 1 ratio, v / v) for hydroponic culture of freesia, as the use of this medium improved the physical properties of the plants, producing the best results in terms of plant growth and cut-flower quality.

Interpretation of Dispersion Phenomena in Grunwald-Winstein Correlation for Solvolyses of Naphthoyl Chloride

  • Ryu, Zoon-Ha;Ju, Chang-Suk;Sung, Dae-Dong;Sung, Nak-Chang;Bentley, T. William
    • Bulletin of the Korean Chemical Society
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    • v.23 no.1
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    • pp.123-131
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    • 2002
  • Solvolyses rate constant of 1- and 2- naphthoyl chlorides (1 and 2) are reported for aqueous binary mixtures with methanol, ethanol, fluorinated alcohol, acetonitrile and dioxane. Kinetic solvent isotope effects (KISE) in methanol and product selectivities (S) of 2-naphthoyl chloride (2) in alcohol-water are also reported. Dispersions in Grunwald-Winstein correlations $(r{\leq}0.901)$ are discussed by multiple regression analysis incorporating ionizing power $(Y_{Cl})$ scale and rate-rate profiles. Major causes for these phenomena are investigated as an aromatic ring solvation effects, in conjunction with weakly nucleophilic solvation effects ($S_N2$ character), for solvolyses of 1 and for solvolyses of 2, as dual reaction channels, described as $S_N1$-$S_N2$ and $S_AN$-$S_N2$ processes. Distinct border lines between the two pathways are derived from solvolyses rates of 2 in 18 solvent using the results of $log(k/k_o)=mY_{Cl}+lN_T+hI$ plot with values of 1.13 for m, 0.37 for l and 0.15 for h value in 5 aqueous fluorinated alcohol mixtures. Using rate-product correlation, the validity of a third order model based on a general base catalyzed by solvent and contribution from these rate constants, $k_{aa},\;k_{aw}$ and $k_{aw}$, are investigated for $S_AN$-$S_N2$ solvolyses of 2 favored in more rich alcohol media and gradual addition of water to alcohol solvent shows a great shift away from stoichiometric solvation to predominantly medium effects. Rate-rate correlation between solvolyses of 2 and trimethyl acetylchloride (5) with alkyl group in the 29 aqueous solvent mixtures shows appreciable linearity (slope = 0.84, r = 0.987), caused by the same pathway ($S_N1$-$S_N2$ process), even if this correlation coincides with appreciable dispersion (different solvation effect).

The Possibility Study of Making Horror Animation Based on Chinese Traditional Stories (중국 고전의 공포 애니메이션 구현 가능성 연구)

  • Qu, Lin;Choi, Chul-Young
    • Cartoon and Animation Studies
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    • s.37
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    • pp.25-44
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    • 2014
  • In the past 5 years, Chinese film market has witnessed a great development, with the film and animation box hitting records highs. At the same time, TV contents become more and more diverse, and the widespread use of smart phones makes Internet the new popular media today. On this occasion, domestic animation production is growing year by year because of people's growing demand for animation. And the volume of introduced foreign animations is growing as well. But under the same conditions, domestic animation shows obvious lack of competiveness. Chinese traditional stories have rich contents, providing a large amount of animation material. But most animations based on theses contents cannot arouse audiences' interests. This paper mainly analyzes the development situation of traditional story-based Chinese animation whose content is single and low-aged, and then put forward a new solution for Chinese animation development, which is, adding horror elements to traditional stories. And finally, through analyzing four horror animations , this paper further discusses the implementation possibility of this idea.

Sender Authentication Mechanism based on DomainKey with SMS for Spam Mail Sending Protection (대량 스팸메일 발송 방지를 위한 SMS 기반 DomainKey 방식의 송신자 인증 기법)

  • Lee, Hyung-Woo
    • The Journal of the Korea Contents Association
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    • v.7 no.4
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    • pp.20-29
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    • 2007
  • Although E-mail system is considered as a most important communication media, 'Spam' is flooding the Internet with many copies of the same message, in an attempt to force the message on people who would not otherwise choose to receive it. Most spam is commercial advertising, often for dubious products, get-rich-quick schemes, or quasi-legal services. Therefore advanced anti-spam techniques are required to basically reduce its transmission volume on sender mail server or MTA, etc. In this study, we propose a new sender authentication model with encryption function based on modified DomainKey with SMS for Spam mail protection. From the SMS message, we can get secret information used for verification of its real sender on e-mail message. And by distributing this secret information with SMS like out-of-band channel, we can also combine proposed modules with existing PGP scheme for secure e-mail generation and authentication steps. Proposed scheme provide enhanced authentication function and security on Spam mail protection function because it is a 'dual mode' authentication mechanism.

Sequencing and Baculovirus-Based Expression of the Glycoprotein B2 Gene of HSV-2 (G)

  • Uh, Hong-Sun;Park, Jong-Kuk;Kang, Hyun;Kim, Soo-Young;Lee, Hyung-Hoan
    • Journal of Microbiology and Biotechnology
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    • v.11 no.3
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    • pp.482-490
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    • 2001
  • The gene for glycoprotein B (gB2) of HSV-2-strain G was subcloned, sequenced, recombinated into the lacZ-HcNPV, expressed in insect cells, and compared with the homologous gene of other HSV-2 strains. The ORF of the gB2 gene was 2,715 bp. The overall nucleotide sequence homology of te gB2 gene compared ith that of the two previously reported HSV-2 strains appeared to be over 98%. A recombinant virus named Baculo-gB2 protein in insect cells. The recombination was confirmed by a PCR and the expression was demonstrated by radio immunoprecipitation. Insect cells infected with the Baculo-gB2 virus synthesized and processed gB2 with approximately 120 kDa in the cells, and then secreted it into the culture media, where it reacted with a nomoclonal antibody to gB2. The gB2 polypeptide contained two main hydrophobic regions (a signal sequence from 1 to 23 amino acid residues, and a membrane anchor sequence from aa 745 to 798), eight N-glycosylation sites evenly distributed, and was rich in alanine (11.2%). Antibodies to this recombinant protein that were raised in mice recognized the viral gB2 and neutralized the infectivity of the HSV-2 in vitro. There results show that the gB2 protein was successfully porduced in insect cells and could be used to raise a protective neutralizing antibody. Accordingly, this particular recombinant protein may be useful in the development of a subunit vaccine.

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Trends of Studies on Interactive Media in the Country and Foreign Countries - as the spot which time is from 1912-1929 - (중국 중화민국 초기의 포스터 연구 - 1912년 ~ 1929년 중심으로 -)

  • YUYU, YUYU
    • Cartoon and Animation Studies
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    • s.47
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    • pp.413-437
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    • 2017
  • National Republic of China is The republic of China (1912-1949) which experienced a bourgeois-democratic revolution so as to establish was the first and last Chinese bourgeois democratic republic in the history, During this period, great changes have taken place in Chinese society. Emerging bourgeois political began to show the power on the political stage of China. Both political and social environment in this period are turbulent and Western ideas, thoughts and various aspects concept is introduced to China in this period. As the external performance of society, civil society also has a general changed influence in all aspects of lifestyle. Due to the influence of the western design, poster design in the period of the republic of China has a variety of changes and the theme of the posters also became rich and diversity. The author, as a student, talk about the type, pattern and color characteristics of poster design in the period.

Arabidopsis thaliana as Bioindicator of Fungal VOCs in Indoor Air

  • Lee, Samantha;Hung, Richard;Yin, Guohua;Klich, Maren A.;Grimm, Casey;Bennett, Joan W.
    • Mycobiology
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    • v.44 no.3
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    • pp.162-170
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    • 2016
  • In this paper, we demonstrate the ability of Arabidopsis thaliana to detect different mixtures of volatile organic compounds (VOCs) emitted by the common indoor fungus, Aspergillus versicolor, and demonstrate the potential usage of the plant as a bioindicator to monitor fungal VOCs in indoor air. We evaluated the volatile production of Aspergillus versicolor strains SRRC 108 (NRRL 3449) and SRRC 2559 (ATCC 32662) grown on nutrient rich fungal medium, and grown under conditions to mimic the substrate encountered in the built environment where fungi would typically grow indoors (moist wallboard and ceiling tiles). Using headspace solid phase microextraction/gas chromatography-mass spectrometry, we analyzed VOC profiles of the two strains. The most abundant compound produced by both strains on all three media was 1-octen-3-ol. Strain SRRC 2559 made several terpenes not detected from strain SRRC 108. Using a split-plate bioassay, we grew Arabidopsis thaliana in a shared atmosphere with VOCs from the two strains of Aspergillus versicolor grown on yeast extract sucrose medium. The VOCs emitted by SRRC 2559 had an adverse impact on seed germination and plant growth. Chemical standards of individual VOCs from the Aspergillus versicolor mixture (2-methyl-1-butanol, 3-methyl-1-butanol, 1-octen-3-ol, limonene, and ${\beta}-farnesene$), and ${\beta}-caryophyllene$ were tested one by one in seed germination and vegetative plant growth assays. The most inhibitory compound to both seed germination and plant growth was 1-octen-3-ol. Our data suggest that Arabidopsis is a useful model for monitoring indoor air quality as it is sensitive to naturally emitted fungal volatile mixtures as well as to chemical standards of individual compounds, and it exhibits relatively quick concentration- and duration-dependent responses.

Study on the Microbial Degradation of Nicotine (1) -Isolation and Identification of Nicotinophiles (미생물에 의한 니코틴 분해 연구(1) -니코틴 분해세균의 분리 및 동정)

  • 강은희;윤경하
    • Journal of the Korean Society of Tobacco Science
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    • v.2 no.1
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    • pp.17-27
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    • 1980
  • From 143 sources of collected samples, the distribution of nicotinophiles were investigated and the biological characteristics as well as the rate of nicotine degradation were determined for the selected 34 strains which could grow successfully in the nicotine media, and one of the most effective strains was chosen and identified at the species level. Nicotinophils were distributed abundantly in the soils rich with organic materials, tobacco seed and root. The selected 34 strains were classified into 7 genus and identified with 4 strains of Arthrobacter, 11 strains of non-pigmented Pseudomonas, 2 strains of pigmented Pseudomonas, 6 strains of Alkaligenes, 5 strains Chromobacter 2 strains of Listeria and 4 strains of Achromobacter. Pseeudomonas and Alkaligenes were better than other genus in the rate of nicotine degradation and tobacco seed and root were also good sources for the isolation of effective nicotinophiles. Amnog 34 strains, strain NCT 27 which exhibited 97.l% of nicotine degradation rate was the best one for nicotine degradation and was indentified with Pseudomonas putida.

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A Study on the Mayonnaise Consumption Pattern of Housewives and Sensory and Physical Properties of Egg-white Mayonnaise (난백 마요네즈의 개발을 위한 주부들의 마요네즈 소비실태 및 난백 마요네즈의 물성과 관능적 특성)

  • 박전순;김혜경
    • Journal of the East Asian Society of Dietary Life
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    • v.11 no.3
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    • pp.179-189
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    • 2001
  • The study was carried out to investigate housewive's consumption pattern and preference of mayonnaise for the development of egg-white mayonnaise. Data was collected from 515 housewives in Ulsan by self-administered questionnaire. The collected data were analyzed by SPSS package program. The results were as follows: 1. Most(98.1%) of housewives were concerned about nutrition and health and they considered that nutrition was the most important factor when purchasing food related items. 2. The frequency of using processed foods was two to three times a week and the reason for use it was the convenience. Usually the housewives obtained nutrition related information through mass media such as TV, radio(37.5%) , and newspaper, magazine(32.1%). 3. 75.9% of the subjects thought mayonnaise is a high calorie food and 57.5% of them knew the basic ingredients of mayonnaise. Most(79.3% ) of housewives perceived that cholesterol which is rich in egg yolk is related to cardiovascular disease and arteriosclerosis. Among family members, children showed high degree in the preference for mayonnaise. 4. Comparison of the low cholesterol mayonnaise which was made by egg white for egg yolk with commercial product was made by sensory evaluation and mechanical test. The viscosity and turbidity did not show any difference. Overall taste of low cholesterol mayonnaise was better than of commercial product. Based on these results of this study provided useful information for development of egg-white mayonnaise (low-cholesterol mayonnaise) and expected the possibility of using low cholesterol mayonnaise will be high.

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Application of Authoware for the Oceanography Learning System Based on WBI (오소웨어를 이용한 해양학습교육매체의 제작에 관한 연구)

  • Cho, In-Seok;Lee, Byung-Gul
    • Journal of the Korean earth science society
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    • v.21 no.6
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    • pp.655-662
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    • 2000
  • According to the development of internet with Web, WBI has greatly influence on the present educational society. However, it is difficutly to design the web of the dynamic motions of graphics or animation using general programming technique based on high or low level language. Recently, Mecromedia Company supported a tool that is called Authoware which is the leading visual rich-media authoring solution for creating Web and online learning applications, to solve the problem easily. In the paper, using the the Authoware we tried to develop a web page about tidal variations due to sea level change and intertidal zone variations using the Authorware 5.1. To do this, we used the ocean survey data of Iho beach and the tidal level data based on Tidal Tables of Cheju harbor. The results showed that the Authorware was very useful to construct the simulation of tidal phenomena on web. Therefore, the Authorware can be applied to the simulation related with animation and dynamic motions for the other WBI objective.

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