• Journal of Korean Society of Rural Planning
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• v.24 no.1
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• pp.11-19
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• 2018

The purpose of this study was to analyze the participant's perception of importance and performance of rural tourism network products that are linked with local resources, and propose the implications on the development direction of such products. The focus is on helping rural tourism network products acquire competencies that will help them evolve their business and differentiate themselves. To reach these objectives, a survey was designed through theoretical research on the motive of rural tourism and on agritourism networks. The survey was carried out on visitors to rural communities that produce rural tourism network products from November, 2015, to January, 2016 using 165 copies of a questionnaire after distributing 175 copies. The first quadrant continue and sustain', an area of high importance and high performance, included trial program components, stress reduction, getting away from daily routines, gaining new experiences, comfort, experiencing rural culture, travel expenses, and making memories with family. The second quadrant 'requires intensive improvement', an area of high importance but low performance, included having diverse trial programs, refreshment, experiencing agriculture, and education of children. Therefore, continuous interest is required for the area of 'maintenance' just as it is for activating educational farms in rural communities and a more fundamental improvement in the operation should be made for the area of 'intensive management'.

• Journal of Marine Bioscience and Biotechnology
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• v.3 no.1
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• pp.54-60
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• 2008

Compared to other North African countries, Tunisia has reached a significant level of fish consumption. The only relevant historical dimension of aquaculture in Tunisia are traditional lagoon management (80,000 ha of lagoon and coastal lakes) and culture of shellfish. Semi-intensive and intensive cultures are relatively new concepts in Tunisia and only recently also the public sector is involved. The Tunisian fishing industry has expanded over the last 20 years and annual catches at present are more than four times those registered in mid-fifties. Production of the year 2007 reached 105 thousand tons against 111 thousand tons during the same period of 2006 thus recording a fall of 5%. Unfavorable weather conditions mainly during the last quarter year had the effect to reduce the number of days out at sea. Exports reached 24.3 thousand tons for one value 240.5 MD against respectively 22.2 thousand tons and 234.1 thus recording MD at the end of the past year a rise of 9% in volume and from 3% in value. Commercial value such as shellfish - consequence of one regression of the production - with in parallel raises blue fish exports. The imports were stabilized in volume of 39.1 thousand tons and increased from 6% in value with respectively 67.4 MD in 2007 against 63.7 MD at the end of 2006. The importation in larger quantities of intended fish to the fattening of tuna in floating cages explains partly this rise. Nevertheless, the pay of balance import/export of produced fishing remains positive with a surplus of 173.1 MD against 170.4 MD in 2006.

• Journal of Aquaculture
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• v.22 no.1
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• pp.42-50
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• 2009

Shrimp farming which is entirely conducted in outdoor ponds in the west coast of Korea has been suffered from mass mortality due to viral epizootics. Intensive indoor shrimp culture under limited water exchange can solve these problems of outdoor ponds including viral transmission from environment, pollution due to discharge of rearing water, low productivity and limited culture period. In this study, juvenile L. vannamei (B.W. 0.08-0.09 g) was stocked with $3,000-5,455/m^3$ in density in four raceway tanks (two $12.9\;m^2$, two $18\;m^2$ tanks) and cultured for 42 days with 2.7-3.4% of daily water exchange. Results from four tanks showed FCR of 0.79-1.29, survival of 38.2-48.0%, and yields of $2.49-4.22\;kg/m^3$ which is consistent with 12-20 and 8-14 times higher than those of commercial shrimp hatchery and outdoor pond in Korea, respectively. Concentrations of total ammonia nitrogen in all four tanks were 1.11-1.42 ppm in mean level and did not exceed 6.0 ppm (0.096 ppm of $NH_3$) which is still acceptable levels for shrimp growth. During the culture trial, concentration of $NO_2$-N rapidly increased from stocking, resulting in mean concentration of 18.45-22.07 ppm. It also exceeded 10 ppm over four weeks and maintained at 35-45 ppm for four days in all tanks, accounting for low survival of shrimp due to long-term exposure to high concentration of $NO_2$-N. Nevertheless, the results with survival rate over 38% from raceways which experienced the extreme $NO_2$-N levels suggests that under "biofloc system" white shrimp can acclimate to high $NO_2$-N concentration to some degree.

• Journal of Korean Society of Forest Science
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• v.64 no.1
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• pp.1-10
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• 1984

Two fast-growing clones 65-29-19 and 66-6-8 and two less fast-growing clones 66-14-29 and 66-14-99 were compared at intensively cultured plots to identify what morphological characters are related to fast growth and high biomass yield of Populus alba ${\times}$ Populus glandulosa $F_1$. The plantations were established in the spring of 1982 and 1983 at the Seoul National University nursery in Suweon. Differences in dry matter production were found among two-year-old clones but not, among one-year-old clones. Highly significant correlations were found between total leaf area per tree and total dry weight per tree and between total branch length per tree and total dry weight per tree for two-year-old clones. This relation was more obvious during the late growing season. Morphological characters desirable for producing high biomass identified in fast-growing clones were as follows; high shoot-root ratio, high leaf surface area per tree, long leaf retention period, and many small leaves and compact crown architecture in the upper portion of true crown.

• Journal of Korean Home Economics Education Association
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• v.30 no.2
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• pp.77-102
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• 2018

The purpose of this study was to contribute to Home Economics(HE) teachers' culture by figuring out acknowledging characteristics of cultures of HE teachers and impeding factors on development of HE education. For this intensive interview were used. Intensive interviews were made with 14 HE teachers who completed coursework for master's or doctor's program of graduate school and belong to HE Teachers' Study Associations of each region or Korean Home Economics Education Association and analyzed by subject analysis method. The results of the study are as follows. First, HE teachers establish the philosophy of HE education, and practice education to provide profit to adolescents, their families, as well as society through HE class with their belief that HE is a practical and critical subject to benefit individual adolescents, families, and society. Second, HE teachers form culture to make an effort to continue to improve their expertises by attending graduate school, joining HE teachers' associations to enhance teaching methods, evaluation methods, and work ability or disclosing their own class. Third, HE teachers settle culture to conduct classes focusing on practical issues by converting the paradigm of HE education to that of practical critique. They also see that the system of three actions(technical action, communicative action, and emancipative action) should be applied in circulating ways to improve quality and value of life. Forth, for impeding factors of development of HE education, there are educational system and social recognition. However, with HE teachers' efforts, HE education settles well, as it reflects demands from students and society, finds students' talents, and actualizes its own goals. HE teachers believe that student will recognize that HE education is necessary for happiness of individuals and families. As a way to develop Home Economics teacher culture, Home Economics teachers should have the opportunity to develop more Home Economics teachers by participating in and working in research sessions in each area. It also called for a control tower to enable and lead collaborative networks between local Home Economics curriculum research committees. The Korean Home Economics Education Association should play a central role in the academic research community of each region and be able to help Home Economics teachers by moving more quickly and systematically to cope with the upcoming changes in education. Finally, participants said that in order to prepare a basic framework for the change in Home Economics education, practical critical Home Economics teacher training are needed. To this end, students can understand the essence of Home Economics education and establish their identity by taking a deeper Home Economics education curriculum philosophy for Home Economics teacher training.

• Journal of Science of Art and Design
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• v.7
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• pp.105-127
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• 2005

This research is on the characteristics and roles of important cities of Germany based on the history of the modern art museum and its possessions. Especially, it is focusing on the modern art museums in the western Germany including Dusseldorf, Koln, and Frankfrut that have shown economic recovery from the Miracle of Rhine; the capital city of Germany, Berlin, as well as Munich, the second capital city of Germany. Here, it harmonizes with the tradition of the past and simultaneously, it spreads the concept and role of the new museum as a forerunner. After the WWII, this is the most active of supporting investment for art museums and authors from the economic development. Also, it represents Germany with its national promotion of culture and arts. The modern art museums of Germany emphasize the mission that they exist for the people and the nation as well as creation of new art culture. These art museums working for national culture and art development do not simply collect and preserve arts. They induce active involvement from the public and keep in mind of national objectives. Here, art museums become and educational setting for the people and a room for new art culture. This research is on Germany modern art museum and it is composed of important 'public institutions' of Germany that critically influence the growth of world-renown authors. After the unification of Germany, Munchen and the western region became an important places centering around new Berlin modern art museum. They are the best places that show the national objectives and regional characteristics. Also, there are art museum educational curriculum and open space for the people by explaining exhibition plans and contents. Furthermore, there are two characteristics of German modern art museums that are noteworthy. Firstly, there are Berlin's Neue Nationalgalerie, Munchen's Pinakothek de Moderne, and Dusseldorf's 'K20' (Kunstsammlung N-Westfalen K20) that are the roots of modern art. These modern art museums exhibit popular author's collection repeatedly. This has a tendency to standardize audiences' view or to make audiences bored. It is becoming more like a trend for art work to appear and disappear. Despite these problems, German modern art museums play a critical role for a new cultural art creation and for the national identity by attempting to show the works of domestic authors as well as an intensive collection of world-renown authors' works. Secondly, there is a role as a new art museum to work together with people. It strives to continuously educate difficult modem arts, exhibits in an open space stimulating interest, participation, and conversations. From these roles, Hamburger Bahnhof Museum fur Gegenwart or Dusseldorf's 'K21, Frankfurt Museum $f\"{u}r$ Moderne Kunst, $Kf\"{o}ln$ Museum Ludwig are given new attention. Here, they emphasize the importance of communicating with the audiences and provides experiences that are different from the original spaces by showing the architecture tecture style of the art museum. In conclusion, German modern art museums attempt various changes by connecting to art education. With art museum activities, there forms a connection between arts and the lives of people, and from this, creative cultural art focused on the art museum borns. This is not only limited to Germany, the U.S., etc. We, too, should pay attention to new art culture creation from changes of role and function of modern art museums.

• KOREAN JOURNAL OF CROP SCIENCE
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• v.36 no.3
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• pp.280-285
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• 1991

The rice culture techniques of the ancient China which have played a key role directly and indirectly, in development of ancient farming and its techniques of Korea, were established before Christ in terms of dry-farming and the spirit of the farming-first principle. Especially techniques of rice culture were developed by cultivation methods for deep plowing, storage of water and preservation use of soil fertility. Therefore, the techniques of transplanting methods, seeding in rows, use of iron-made farming tools and dam construction for irrigation were advanced. And rice varieties were differentiated to avoid disasters or to supply of rice for various uses in many areas. Also, because north China was the origin of Chinese agriculture in which population density was low and flat land was wide that were the cradle of Chinese agriculture, ‘Hwayungsunubeob’(firing and drawning weed control method) and fallowing were quickened as intensive techniques of rice culture. In connection with the view of agricuture with 'the theory of the cosmic dual forces and the five primary substances' of Han Mooje and Chamwye scholars, the techniques of seeding and selection of crops were gradually developed. From ‘Jeminyosul’ of the 6th century to ‘Wangjongnongseo’ of the 14th century, the techniques of rice culture have been developed continuously and additively, but were not improved thereafter Won dynasty. From this point of time, the time of agriculture in the end of Koryo age and by ‘Nongsajiksul’ were initiated.

• The Journal of the Convergence on Culture Technology
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• v.1 no.2
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• pp.53-64
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• 2015

The purpose of this study was to analyze the smoking experience and attitude including affect factors to smoking for elementary schoolers. The cross-sectional descriptive study design was used. We selected 810 students from 14 elementary school located in Chungchung-do and Gangwon-do by convenience random sampling and received IRB from Y Univ. 810 students were included in the final analysis using generalized linear model. Among 810 students, 7.3% of students reported to have smoking experience. The result of analyzing the smoking affect factors for smoking students who were having friends who had smoking experience, unable to smoking suggestion and those who were male, had significantly more smoking experience. According to the results of this study, there should be an intensive tailed smoking related program development for male elementary students, especially for smokers who have smoking friend and including smoking refusing program. And the school system services of elementary school should be strengthened to protect the elementary students from further the critical situation caused by smoking experience.

• KSBB Journal
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• v.26 no.3
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• pp.229-236
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• 2011

An efficient screening method was developed for rapid selection of a few overproducers of itaconic acid (IA) among the great many mutants derived from mother strains of Aspergillus terreus. For this purpose, an attempt was made to reveal the relationships of the growth rate and sporulation of each mutant on PDA solid medium with its IA productivity in the final liquid production-culture. As a result, it was possible to classify the mutated strains into 5 groups (from [A] to [E] group) according to theirmorphologies (i.e., growth rate and sporulation extent) on the PDA slants. Notably, most of the high-yielding mutants of IA were observed to belong to [A]group which had the properties of the highest growth rate and sporulation among the 5 groups, whereas the mutant groups of [C], [D] and [E] with the contrasting morphological features showed significant reductions in their IA productivities. From these results, it was concluded that the probability of selecting IA overproducing mutants could be remarkably enhanced when the mutated colonies showing faster growth rates are firstly selected on the PDA plate, and then further screening process is performed on the basis of the sporulation extents of the mutants selected. Consequently, through the application of the strategy developed in this study, costs and time involvedin the labor-intensive task of strain improvement could be reduced to a great extent, because the time-consuming liquid culture processes did not need to performed for the unfavorable mutants belonging to the groups other than group [A].

• Journal of Dairy Science and Biotechnology
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• v.16 no.2
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• pp.83-89
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• 1998

Studies on the antimutagenicity of Lactobacillus spp. and Bifidobactrium spp. against 2-nitrofluorene have been conducted utilyzing Salmonella typhimurium TA 98 in order to characterize the activity by the starter and non-starter strains. The average antimutagenic activity of Lactobacillus spp. and Bifidobactrium spp. against 2-nitrofluorene was 20.29% and L. plantarum CU 722 revealed the greatest mutation inhibition activity of 50.34%. An intensive antimutagenicity was found in the cell wall and cytoplasm fraction of L. plantarum CU 722 in skim milk culture showing inhibition rate of 34.9% and 24.5% respectively and very low activity remained in cell free broth and in lactic acid. The optimum cultivation time for Lactobacillus spp. and Bifidobacterium spp. to inhibit mutation was 24 hours and the optimum preincubation time of the reaction mixture containing the mutagen, lactic culture and indicator strain was 60 minutes, and the optimum incubation time for the test plates was 48 hours.