Kim, Soon-Dong;Yoon, Soo-Hong;Kang, Meung-Su;Park, Nam-Sook
Journal of the Korean Society of Food Science and Nutrition
/
v.15
no.2
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pp.171-175
/
1986
Pectic substance of hot pepper crude cell wall was fractionated during ripening and softening. The pectic substance was divided ionically associated pectin(IAP) and covalently bounded pectin with hemicellulose(CBP). And then, the composition and the modification of the pectic substance using gel filtration chromatography were studied. The polyuronide associated with the CBP increased owing to decreasing of pectin bound hemicellulose linked to galactose by the turning stage showed softening. The molecular weight profiles of IAP shifted from low molecular weight profiles of IAP shifted from low molecular weight to high molecular weight polymers. While, the CBP changed from high molecular weight to low molecular weight polymers during ripening. It is suggested that the changes in the pectic substance associated with fruit softening should involve the alteration of CBP-bound hemicellulose like galactan.
This study is on mid-seventies female gamblers who went through Korean modern history. The purpose is to analyze interviews on their life of understanding what their true self is, and to redefine gambling. The concept of 'existential self-regulation' was proposed and the materials were acquired through narrative interviews. The materials were then investigated according to Mandelbaum's framework for analysis of which suggests dimension, turning, and adaptation. The self-narrative revealed that the process of being addicted to gambling is as in the following: compensating her emotional deficiency via money and child's education, getting rid of the emotional deficiency via gambling, becoming free from emotional deficiency. The meaning of gambling has shifted to a comfort to existential vacuum, a source of anxiety ruining life, pastime for boring everyday life. Life events that control the impulse to gamble through 'existential self-knowledge' occurred in the second and the third stage. Based on the results, the study suggests mid-seventies female gamblers to write her autobiography, and proposed the necessity of self-examining programs.
Nguyen, Van Minh;Nguyen, Thi Thanh Diep;Yoon, Hyeon Kyu;Kim, Young Hun
Journal of Ocean Engineering and Technology
/
v.35
no.3
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pp.173-182
/
2021
The maneuvering performance of a ship on the actual sea is very different from that in calm water due to wave-induced motion. Enhancement of a ship's maneuverability in waves at the design stage is an important way to ensure that the ship navigates safely. This paper focuses on the maneuvering prediction of a Russian trawler in wind and irregular waves. First, a unified seakeeping and maneuvering analysis of a Russian trawler is proposed. The hydrodynamic forces acting on the hull in calm water were estimated using empirical formulas based on a database containing information on several fishing vessels. A simulation of the standard maneuvering of the Russian trawler was conducted in calm water, which was checked using the International Maritime Organization (IMO) standards for ship maneuvering. Second, a unified model of seakeeping and maneuvering that considers the effect of wind and waves is proposed. The wave forces were estimated by a three-dimensional (3D) panel program (ANSYS-AQWA) and used as a database when simulating the ship maneuvering in wind and irregular waves. The wind forces and moments acting on the Russian trawler are estimated using empirical formulas based on a database of wind-tunnel test results. Third, standard maneuvering of a Russian trawler was conducted in various directions under wind and irregular wave conditions. Finally, the influence of wind and wave directions on the drifting distance and drifting angle of the ship as it turns in a circle was found. North wind has a dominant influence on the turning trajectory of the trawler.
The notion of the 'court' is most unique to ICC arbitration. This paper focuses on what the court is and how it works and what the role and the duties of the Court under the ICC arbitration imply for the KCAB International Arbitration Rules. The Court is an administrative body that administers arbitrations taking place under the ICC Rules of Arbitration. The Court consists of 126 members from 88 countries around the world. Court members participate in decision-making process by way of attending the committee sessions and plenary sessions. At the Court's committee sessions, the Court fixes advance on costs; reviews the prima facie existence of arbitration agreements; fixes the place and language of arbitration, and the number of arbitrator(s); confirms and approves arbitrators; scrutinizes draft awards, determines the costs of arbitration; decides on extensions related to Terms of Reference, draft awards and correction and interpretation of the awards. At the Court's plenary sessions, the Court performs only two responsibilities: the challenge or replacement of arbitrators or the scrutiny of draft awards. The Court is required to scrutinize draft awards involving states or state entities, drafts with huge amounts in dispute or complex technical or legal questions, and as well as draft awards to which a dissenting opinion has been attached. Turning to the KCAB International Arbitration Rules, Article 1(3) provides that the KCAB shall establish an International Arbitration Committee. Further, it is provided that the KCAB shall consult with the said Committee with respect to challenge and replacement/removal of arbitrators pursuant to Article 1(3). The notion and role of the International Arbitration Committee was originally adapted from the Court to ICC arbitration, but its role was quite reduced in the process of enactment of its Rules. Accordingly, I examined the detailed roles of the Court to ICC arbitration in this paper and hereby suggest that the KCAB International Arbitration Rules shall be amended in the following ways: The Secretariat of the KCAB shall: fix advance on costs at the first stage and the costs of arbitration at the final stage of the proceedings; determine the number of arbitrators; review the prima facie of existence of arbitration agreement; confirm arbitrators; decide extensions related to time table, draft awards and correction and interpretation of the awards. I, also, suggest that the arbitral tribunals shall fix the place of arbitration and the language of arbitration and make a final decision on the validity of arbitration agreement. With regard to the International Arbitration Committee, it is desirable for its Rules to empower the Committee to recommend any prospective arbitrator and to review and decide challenge and replacement/removal of arbitrators.
Recently, development paradigm of information system is turning into object oriented and component based, and this methodology is leading the software industry. To acclimatize aptly to this trend, users demand the assessment of software expenses to change with the appropriate model of computing costs of the environment, and some people are actually studying the concept of Object Oriented Function Point and UCP method. Especially, Object Oriented Function Point Measurement Process has good points in overcoming the bound of LOC and the existing the Function Point Measurement Process because Object Oriented Function Point Measurement Process is applicable to the early stage of development project mainly with the used cases, and valid to the life long period as the each stage of software products develops, and always understandable to communicate with users by the UML mark rules. Accordingly, this research is to measure Functional Point at ROFP and AOFP in accordance with the development project of information system by the national defense CBD methodology procedures and UML Interrelation Analysis that are recently and widely used in the developmental environment of object oriented information system. Furthermore, this study suggests the measurement method to obtain Functional Point, and identifies service function and object/class function in the correlation analysis of use case and class based on the products and UML modeling via traditional FPA model and object oriented FPA model. Above all, this study is to demonstrate the improvement of traditional Function Point Measurement Process, IFPUG-CPM and software cost basis, and reveal Function Point Measurement Process, which is appropriate to the development of object oriented information system, and suggest the evaluation results of the compatibility through case studies.
Journal of the Korean association of regional geographers
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v.1
no.1
/
pp.69-80
/
1995
As Korean traditional peasant farming has come to a commercialization since 1970s, the spatial structure of Korean agriculture also has been gradually restructured by principle of not subsistance but economy. This epochal transformation of agriculture and its spatial structure in Korea are comparable with the first agricultural revolution in Europe. Facing this turning point, it is essential to redefine the nature and significance of agricultural geography in Korea through the review of the outcomes of about 200 studies published since 1950s in Korea of which twelve is concerned with locational analysis. The purpose of this study is to review the trend and characteristics of location studies on Korean agriculture. Major findings are as follows: (1) Since 1950s the location studies of agriculture recorded only 12 papers which occupy no more than 6% of studies of agricultural geography in Korea. This fewness suggests that the location study of agriculture in Korea is yet at the stage of beginning. (2) In spite of the fewness the studies, carried out mainly in 1980s, contributed considerably to clarify the locational characteristics of Korean agriculture especially in the spatial variations of crops, dairy farming and cropping system, the impacts of agricultural labors, the location strategy of mountain agriculture, and the responses of farmers to hazard. (3) In approach and methodology, two thirds of the studies has taken traditional empiricist view and other, positivist. And most studies adopted classic and neo-classic locational theories as their theoretical base in description and explanation. In degree of development, the location studies of agriculture in Korea seems to be about 20 years delayed compared to that of the advanced countries in terms of approach and methodology. (4) Such tradition of the location studies reflects not only the conservative nature of agricultural geography of Korea but also the early stage of capitalism of Korean agriculture.
From 1876 to 1883, British mathematician James Joseph Sylvester worked as the founding head of Mathematics Department at the Johns Hopkins University which has been known as America's first school of mathematical research. Sylvester established the American Journal of Mathematics, the first sustained mathematics research journal in the United States. It is natural that we think this is the most exciting and important period in American mathematics. But we found out that the International Congress of Mathematicians held at the World's Columbian Exposition in Chicago, August 21-26, 1893 was the real turning point in American's dedication to mathematical research. The University of Chicago was founded in 1890 by the American Baptist Education Society and John D. Rockefeller. The founding head of mathematics department Eliakim Hastings Moore was the one who produced many excellent American mathematics Ph.D's in early stage. Many of Moore's students contributed to build up real American mathematics research power in early 20 century The University also has a well-deserved reputation as the "teacher of teachers". Beginning with Sylvester, we analyze what E.H. Moore had done as a teacher and a head of the new department that produced many mathematical talents such as L.E. Dickson(1896), H. Slaught(1898), O. Veblen(1903), R.L. Moore(1905), G.D. Birkhoff(1907), T.H. Hilderbrants(1910), E.W. Chittenden(1912) who made the history of American mathematics. In this article, we study how Moore's vision, new system and new way of teaching influenced American mathematical society at early stage of the top class mathematical research. and the meaning that early University of Chicago case gave.
In this study, we analyzed the densities and taxonomic characteristics of various microorganisms that play important roles in Agaricus bisporus culture medium composting, and examined changes in the levels of decomposition-related enzymes secreted by these microorganisms. Various microorganisms such as thermophilic bacteria, actinomycetes, fluorescent Pseudomonas spp., and filamentous bacteria are closely associated with culture medium composts of Agaricus bisporus. The population densities of microorganisms change, and harmful bacteria disappear during thermophilic composting. Psychrobacter sp., Pseudomonas sp., Bacillus sp., and Pseudoxanthomonas sp. accounted for the highest proportion of bacteria in the culture media during outdoor composting, whereas Bacillus sp. and Psychrobacillus sp. were dominant after pasteurization. Cellulose and hemicellulose enzymes of the microorganisms were important at an early stage of rice straw composting and after decomposition of carbon sources, respectively. Microorganisms that secreted these enzymes were present in the second and third turning stage of composting.
Tomatoes are water logged differently 0, 5, 10 and 15 cm, according to the developing stages such as germination and seedling stage under the condition of greenhouse. Along with this, they are treated according to the time condition such as 6, 12, 24, 48 and 120 hours. The results obtained are summarized as follows. 1. The result at germination stage Remarkable germination failure was observed when tomatoes were water-logged for 25 to 27 hours in the depth of 0 to 5 cm. Plant height recovered within 24 hours regardless of the water-logging depths. In the case of leaves, the recoverable time limit became shorter gradually in accordance with the increase of the water-logging depth. The decrease of the fresh weight showed acute response in the shoot rather than the root. It recovered with the 24 hours of water logging. Significant correlation was observed in all characteristics of plant height, number of leaves, fresh weight and germination rates according to the depth of water-logging. 2. The result at seedling stage Plant height recovered within the 24 hours of water-logging in the depth of 0 cm. On the deeper level, there was significant decrease regardless of time. With regard to the number of leaves, there was recovery up to 120 hours in the depth of 0 cm, up to 24 hours in the depth of 5 cm. There was, however, significant decrease when done for more than 6 hours on the deeper level. Growth of the shoot displayed the same tendency as in plant height and number of leave. The length of the longest root could be maintained by 80% in the water-logging of 0 cm compared with control. However in depth of 5 cm or more, it could not be maintained by the 120 hours water-logging. Root activity became conspicuously diminished with the logging over 0 cm. Respiration showed conspicuous decrease by the depth of 5 cm as a turning point. On the other hand, photosynthesis became decreased linearly by the depth of water-logging. Chlorophyll content displayed gradual decrease up to 48 hours, but conspicuously decreased up to 120 hours according to the varying depth of water-logging. Dieases tended to increase according to the depth and hours of water-logging. Diseases would be prevented by dint of insecticide, but there was no effect of fertilization. Weight and number of fruit per plant displayed gradual decrease as the depth and hours of water-logging became increased. Average weight of a fruit became increased. There was no statisticaly reciprocal effects between the depth and hours of water-logging. There was significant positive correlation among all the investigated characteristics, such as traits of growth and yield.
Park, Jong Woo;Kim, Jinse;Park, Seok Ho;Choi, Dong Soo;Choi, Seung Ryul;Kim, Yong Hoon;Lee, Soo Jang;Park, Chun Wan;Lee, Jung Soo
Food Science and Preservation
/
v.23
no.5
/
pp.614-622
/
2016
This study was carried out to investigate the effect of modified-atmosphere packaging (MAP) on the quality change of "Tabor" tomatoes during long-term exportation periods. Hydroponics tomatoes were harvested at the turning stage, sorted, and box packed and then packaged in nylon film with a pallet. The packaged pallet was filled with a gas composition (5% $O_2$, 1% $CO_2$, and 94% $N_2$) and stored at $10^{\circ}C$ for three weeks. The quality changes in weight loss, firmness, color, acidity, soluble solids, and microorganism growth were measured every 7 day interval. During the initial storage, the pallet-scale MAP showed slightly higher weight loss and firmness changes when compared to the conventional pallet. The total color change (${\Delta}E$) during ripening was delayed 10% under MAP storage. Acidity, soluble solids and phenolic compound contents decreased with increases in storage time regardless of the storage method; however, the quality changes of tomatoes were delayed in the MAP pallet. Furthermore, the decay rate of the pallet-scale MAP stored for 14 days was less than that of the conventional pallet, and the number of microorganisms was approximately 30% lower in the pallet-scale MAP, showing a positive effect on marketability. These results suggested that the pallet-scale MAP of tomatoes could ensure higher quality and longer storage periods than conventional pallet storage.
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