• Title/Summary/Keyword: Mass culture

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In Vitro Mass Propagation and Economic Effects of Bioreactor Culture in Ever-bearing Strawberry 'Goha' (Bioreactor를 이용한 사계성 딸기 기내대량증식과 경제성)

  • Lee, Jong-Nam;Kim, Hye-Jin;Kim, Ki-Deog;Kwon, Young-Seok;Im, Ju-Sung;Lim, Hak-Tae;Yeoung, Young-Rok
    • Horticultural Science & Technology
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    • v.28 no.5
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    • pp.845-849
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    • 2010
  • This study was conducted to compare various culture methods and evaluate economic feasibility of each method for mass propagation of new ever-bearing strawberry 'Goha'. Four different methods such as semi-solid culture, solid culture, liquid suspension culture and bioreactor culture were compared. The solid culture and bioreactor culture showed the shortest and longest root length, such as 3.6 cm and 8.3 cm, respectively. Fresh weights of plants cultured in bioreactor were 2,261 mg, which were heavier than those of cultures. Dry weights of plants cultured in bioreactor were the heavier compared to those in other cultures. The number of axillary bud developed in bioreactor was seven, but axillary bud was not developed in other cultures. Production cost through bioreactor culture was calculated to be 303 won per plant which was 542 won less than that of solid culture. As a result, we found that the bioreactor culture was the most cost effective culture method for in vitro mass propagation in new ever-bearing strawberry 'Goha'.

Effects of Culture Type and Inoculation Quantity in Bioreactor on Production of Potato Plantlets

  • Choi Ki Young;Son Sung Ho;Lee Joo Hyun;Lee Yong-Beom;Bae Jong Hyang
    • Journal of Bio-Environment Control
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    • v.14 no.4
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    • pp.298-301
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    • 2005
  • Potato (Solamum tuberosum 'Dejima') plantlets were investigated on culture type and initial quantity of inoculation in bioreactor and survival rate by hydroponics for mass production. rode stems (1 to 1.5cm in length) of potato plantlets multiplied in vitro were grown for 3 weeks in liquid Murashige and Skoog (MS) medium with sucrose $30 g\; L^{-1}$. When plantlets (80-node inoculation) were raised in 10L balloon type bubble (BB) bioreactor, the healthiest growth of plantlets was obtained from explants cultured in ebb & flow culture with medium supplied periodically 12 times per day. The suitable inoculation quantity of 20L BB bioreactor was 120 pieces of stem segments (mean 2.2g fresh weight) in ebb & flow culture. Number of nodal shoot was eight on the average. In controlled culture room, survival rate of plantlets at 7 days after stem cutting was above $70\%$ when they were acclimatized by hydroponics grown in deep flow and solid medium culture. The highest survival rate of the stem cutting plantlets was in nutrient solution adjusted to EC $1.4dS{\cdot}m^{-1}$. Stem cutting plantlets through one culture could be obtained $670\~900$, when plantlets were grown in ebb & flow culture during 3 weeks using a 20L bioreactor with initial 120 pieces of nodal segments. 11 is possible In do mass production of seedlings cultured in bioreactor and hydroponics.

The factors influencing consumers' perceived complexity of online apparel mass customization service usage

  • Moon, Heekang;Lee, Hyun-Hwa;Chang, Eunyoung
    • The Research Journal of the Costume Culture
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    • v.21 no.2
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    • pp.272-286
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    • 2013
  • Mass customization is a marketing strategy to meet consumer needs for variation and uniqueness of products. Although there are quite a few studies quantitatively investigated the options provided by mass customization process, scholarly work related to mass customization has provided mixed results on consumer perception of complexity and their responses. The purpose of the study is to derive the factors that influence consumer complexity perception in online apparel mass customization process and consumers' needs to enhance mass customization services. Data were collected by conducting focus group interviews of which 29 participations in 4 groups. The results of the study suggested that consumers perceived complexity through mass customization process due to too many choice options. However, the effect of number of options on respondents' complexity perception was different depending on consumer characteristics such as consumer expertise and fashion involvement, and the characteristics of consumer preference development. Shopping context such as shopping purpose is another moderating factor. This study also suggests that a variety of marketing strategies which can enhance mass customization services affect the relationship between the number of options and consumers' complexity perception. The findings of the study provide academic and managerial implications.

A Study on the Character Fashion in the Viewpoint of the Cultural dependency (문화종속적 관점에서 본 캐릭터 패션)

  • 이민경;한명숙
    • The Research Journal of the Costume Culture
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    • v.7 no.5
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    • pp.93-103
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    • 1999
  • The objective of the present study was trying to explain the phenomenon of the character fashion using famous character of America and Japan as a cultural dependency of mass culture in Korea. Today, the cultural situation of the Korean society was influenced much from foreign countries, especially America and Japan in every culture. It means the penetration of foreign cultures, the cultural domination of them and it could be explained by the cultural imperialism approach and the cultural imperialism approach presented the theoretical framework of cultural dependency of mass culture. In this viewpoint, I emphasized the influence of the motives used character fashion as an important phenomenon to analyize the cultural situation of Korea.

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Production of Ginseng Saponins with Cell Culture(II) (세포배양에 의한 고려인삼 성분의 생산 연구(II))

  • Chi, Hyung-Joon;Shin, Kuk-Hyun;Kim, Hyun-Soo;Cho, Hee-Jae
    • Korean Journal of Pharmacognosy
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    • v.20 no.3
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    • pp.162-169
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    • 1989
  • Tissue culture of the roots of Panax ginseng was carried out to enhance the production of ginseng callus as well as to increase its contents of ginsenosides. A long cylinder type callus mass was formed when cultured IK callus by rotary shaking culture method, the growth ratio of the callus being 7.71 which was approximately 4 fold higher than those obtained by other culture methods. Ginsenosides $Rg_1$, Re and $Rb_1$ could be detected from the callus mass by TLC, however, their total contents were revealed to be approximately 9% compared to that of the fresh ginseng root equivalent by HPLC analysis,.

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A Study of the Patternmaking Methods for Mass Customization of the Men's Jacket (남성복 재킷의 Mass Customization을 위한 패턴 제작 방법 연구)

  • Oh, Seol-Young;Chun, Jong-Suk;Suh, Dong-Ae
    • The Research Journal of the Costume Culture
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    • v.14 no.1
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    • pp.40-47
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    • 2006
  • Three-dimensional body scanners were used for years in the clothing manufacturing fields. The 3D body surface provide essential data to draft patterns for mass customization, virtual fit model, and computerized patternmaking systems. This research proposed the methods of drafting patterns for men's jacket by using three dimensional body scan data. Eight male subjects were scanned, the surface data was flattened. The differentials of the flattened body surface and the jacket draft were measured, and analyzed the regressions. To verify the fit of the patterns, the jacket was constructed by the regression formulae and tested by experts. The fit of the jacket were significantly improved rather than a ready-made suit especially the shoulder areas. This means that the methods that we proposed were good to improve the fit of the garments and could be used effectively to implement mass customization strategies in the apparel retail industry.

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Adaptive Estimation of Hairy Root Mass Using Conductometry

  • Kim, Ji-Hyeon;Yoo, Young-Je
    • Journal of Microbiology and Biotechnology
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    • v.13 no.5
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    • pp.641-646
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    • 2003
  • An accurate and efficient method for measuring the mass of hairy roots using conductometry is established. A conductivity equation expressed in terms of the concentration of the ion species in the medium is suggested. By using this equation, the effect of the individual ions on the total conductivity can be quantitatively analyzed. An equation for the in situ estimation of the cell growth coefficient for determining the mass of hairy roots is established based on measurements of the nitrogen concentration and conductivity during cultivation. The proposed equation does not require preliminary experiments to determine the cell growth coefficient. Instead, the physiological characteristics of the plant species are reflected by introducing the cellular nitrogen content. Since the cell growth coefficient is determined by measuring the major ionic nutrient concentrations, it is more effective to express the dynamics of an actual culture system. This improved method for determining the mass of hairy roots was successfully utilized in a fed-batch culture system.

Fed-Batch Culture for Polyhydroxyalkanoate Overproduction by Pseudomonas sp. HJ (Pseudomonas sp. HJ로부터 Polyhydroxyalkanoate 대량생산을 위한 유가식 배양)

  • 손홍주;이상준
    • KSBB Journal
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    • v.11 no.2
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    • pp.201-210
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    • 1996
  • The production of polyhydroxyalkanoate(PHA) from glucose by batch and fed-batch culture of Pseudomonas sp. HJ was studied. In batch culture using fermentor, 400 rpm of agitalion speed, 2 vvm of aeration rate, 18 hours of inoculum age, and 5% (vlv) of inoculum size were optimal. PHA production was not increased by deficiency of oxygen. In a batch culture, the final call mass was $6.251g/\ell$, and PHA content was 20% of dry cell weight. In a constant feeding fed-batch culture, cell mass increased to $33.24g/\ell$, and PHA content reached 48.9% of dry cell weight. In an intermittent feeding fed-batch culture, cell mass increased to $37.89g/\ell$, and PHA content reached 53.5% of dty cell weight.

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Tuned mass dampers for human-induced vibration control of the Expo Culture Centre at the World Expo 2010 in Shanghai, China

  • Lu, Xilin;Ding, Kun;Shi, Weixing;Weng, Dagen
    • Structural Engineering and Mechanics
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    • v.43 no.5
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    • pp.607-621
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    • 2012
  • The Expo Culture Centre is one of the permanent buildings at the World Expo 2010 in Shanghai, China. The main structure has an oval shape and consists of 36 radial cantilever steel trusses with different lengths and inner frames made of concrete-filled rectangular steel tube members. Tuned mass dampers are used to reduce the excessive vibrations of the sixth floor that are caused by human-induced resonance. A three-dimensional analytical model of the system is developed, and its main characteristics are established. A series of field tests are performed on the structure, and the test results show that the vertical vibration frequencies of most structural cantilevers are between 2.5 Hz and 3.5 Hz, which falls in the range of human-induced vibration. Twelve pairs of tuned mass dampers weighing 115 tons total were installed in the structure to suppress the vibration response of the system. These mass dampers were tuned to the vertical vibration frequency of the structure, which had the highest possibility of excitation. Test data obtained after the installation of the tuned mass dampers are used to evaluate their effectiveness for the reduction of the vibration acceleration. An analytical model of the structure is calibrated according to the measured dynamic characteristics. An analysis of the modified model is performed and the results show that when people walk normally, the structural vibration was low and the tuned mass dampers have no effect, but when people run at the structural vibration frequency, the tuned mass dampers can reduce the floor vibration acceleration by approximately 15%.

A Study on Modern Changes in European Clothing - with an emphasis on the effect of industrial revolution - (서구복식(西歐服飾)의 근대적(近代的) 변천(變遷)에 대한 연구(硏究) - 산업혁명(産業革命)의 영향(影響)을 중심(中心)으로 -)

  • Choo, Hi-Kyung;Im, Weon-Ja
    • Journal of the Korean Society of Costume
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    • v.6
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    • pp.7-26
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    • 1982
  • Investigation for industrial revolution has been recognized as an important issue of historical science, since industrial revolution itself was a historical moment in modern economic society and in the forming of modern capitalistic culture. If clothing culture had been developed in close relation to social culture. industrial revolution which gave a base for modern capitalistic culture, would be a birth of modern clothing as well as a moment for modernization of western clothing. As it takes for granted that industrial revolution, historical phenomenon is a developmental base of modern clothing culture. This study tried to enlighten the origin of modern clothing culture phenomenon with investigation of industrial revolution as a historical moment in modern clothing culture through documental study. Historian's point of view and method of studying are important when we investigate the clothing phenomenon. Although culture phenomenon of industrial revolution has been evaluated usually through socialogical aspect, studying for clothing culture phenomenon must be carried out on aethetical as well as well as sociological aspect, on account of dualism of clothing, as it is social and artistic nature. In 19th century, there were technical improvement, changing patterns of production, changing social relation and beginning of mass culture. At the same time clothing culture phenomenon was changed in relation to modern capitalistic society. The findings of the study could be summarized as follows. 1. Technical improvement in textile industry and fitting process brought about mechanization of clothing industry. 2. Appearance of popular clothing culture made it easy to spread to various classes of society. 3. Development of transportation system and communication channel made it internationalization of western clothing. 4. Recognition of importance in functional style of clothing. 5. The pursuit of modern aesthetics made rapid changing mode of clothing. Above distinctive features of modern clothing culture were derived from by-product of machinary culture, mass culture, internationalism, rapidly changing mode of various culture during industrial revolution. Industrial revolution was a change of the material world as well as in industry owing to machine advent, then the culture part that displayed directly these changes was the plastic arts of living that mould the material. The problem of clothing construction caused by industrial revolution was solved by pursuing the functional aesthetics. Clothing phenomenon as a process of value transfer participates mass culture in closs relation to general change of various culture caused by industrial revolution. Therefore western clothing gained the qualities of modern culture, condensed as function, and popularity in the process of modernization.

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