• The Korean Journal of Food And Nutrition
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• v.33 no.2
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• pp.159-166
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• 2020

Melon is a fruit consumed and grown globally because of the sweet taste and pleasant aroma. The purpose of this study was to determine the quality characteristics and antioxidant activities of melon jams added with various fruits such as apple, aronia, blueberry, grape, kiwi, passion fruit, and peach. We determined quality characteristics such as pH, total acidity, antioxidant activity, content of total anthocyanin, polyphenol and tannin, respectively. The 100% melon jam as the control was the highest pH and lowest total acidity, whereas mixed jams with melon and passion fruit showed opposite results. The mixed jams with melon and aronia of the total anthocyanin, the polyphenol contents, tannin, and ABTS radical scavenging activities, were markedly higher than those of the control and other samples (p<0.001), followed by the mixed jams with melon and blueberry. In the taste sensing analysis, mixed jams with melon and passion fruit revealed higher richness and lower aftertaste-bitterness and aftertaste-astringency than the commercial strawberry jam and other samples. Thus, jams mixed with various fruits, in particular, aronia, blueberry, and passion fruit were superior to the 100% melon jam in terms of physiological activity and palatability.

• Culinary science and hospitality research
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• v.17 no.2
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• pp.231-243
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• 2011

The purpose of this research is to investigate the variability of mulberry fruit products with the trend of increasing number of Mulberry farms and their fields. For this study, a survey on the number of usages of similar manufactured fruit products was conducted, and its results showed that 41.7% of industrial workers drink fruit products 3-6 times per week. The findings from the survey implies that industrial workers preferred the products in the order of syrup, frozen furee and jam while culinary students extracts, jam and syrup. Based on these research results, the primary product form of mulberry fruit for development would be syrup, sugar-free extracts and jam in order. As for bakery products, developing refrigeration products, bread and cake using mulberry fruit is highly required. When mulberry fruit products were used in food items, industrial workers and culinary students preferred vegetable and meat dishes, which means the necessity of developing dressings and sauces using mulberry fruit.

• Journal of Environmental Science International
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• v.17 no.12
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• pp.1403-1411
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• 2008

Wangdol-cho, located 23 km offshore of Hupo in southwest of East Sea, is underwater rock floor, called to Wangdol-Am or Wangdol-Jam and has three tops as Mat-Jam, Middle-Jam and Set-Jam. The composition, abundance, diversity and community structure were investigated in winter and summer in 2002 around Wangdol-cho. The temperature around the Northwest and Southeast part of Wangdol-cho was influenced by the North Korea Cold Current (NKCC) and East Korea Warm Current (EKWC), respectively. Nutrient and chlorophyll-a concentration were higher at the top of Wangdol-cho than other area. A total of 41 genera and 78 species of phytoplankton were identified. The average cell abundance of phytoplankton in winter and summer were $286{\times}10^3\;cells/m^3,\;432{\times}10^3\;cells/m^3$ respectively. The largest community was Bacillariophyta containing 52 taxa. The dominant species were Lauderia anulata and Coscinodiscus spp. which preferred cold water in winter. In contrast, warm water species such as Rhizosolenia stolterfothii and Ceratium spp. were dominant in summer. The average species diversity index of phytoplankton in winter was higher than that in summer. According to dominant species and standing crops, phytoplankton community resulted in a clear separation. One group was western area, which showed low density, and the other was eastern area, which showed the higher density. The abundance and species composition of phytoplankton. were affected by topological characteristics around Wangdol-cho.

• Journal of Sericultural and Entomological Science
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• v.20 no.2
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• pp.32-35
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• 1978

The infectious flacherie viruses are serious diseases in the silkworm, which affects the cocoon crops. However, there is only a few study on this diseases up-to-date in Korea and, in this experiment, the authors investigated the resistance of the silkworm varieties to flacherie and Ina-flacherie viruses by peroral infection. A cross, Hansaeng ＃1$\times$ Harisaeng ＃2, showed the highest resistance to the flacherie virus a Mudeung$\times$Geumho showed the lowest resistance among the examined varieties. It seemed that the varietal difference of resistance against Ina-flacherie virus was appeared and Jam117$\times$ Jam118, Gyeongchu$\times$Yeonil, Mudeung$\times$Geumho, Hansaeng＃1$\times$Hansaeng＃2 and Hansaeng＃3 $\times$ Hansaeng ＃4 showed non susceptibility by peroral infection. However it was shown that Jam115 $\times$Jam116 had the lowest resistance to Ina-flacherie virus.

• International Journal of Industrial Entomology and Biomaterials
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• v.47 no.1
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• pp.51-62
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• 2023

The advantages of silkworms as functional foods are well known and various products are being developed. In general, silkworms sold in the market include silkworm powder (3 days of fifth instars) and SukJam (7 days or more of fifth instars), In other words, product classification is made according to the maturity of the fifth instar silkworms. In this study, we analyzed the gene expression changes in the fifth instar silkworms and attempted to validate the use of deregulated genes in maturity analysis. After rearing BaekokJam, transcriptome analysis was performed on days 1, 3, 5, and 8 days of the fifth instar, and differentially expressed genes showing differences at each period were selected. Of the 31,841 contigs analyzed, 4012 contigs were identified with a log2 fold change of two or more between 5 and 8 days of the fifth instar. RT-PCR was performed for 18 contigs, which showed increased or decreased expression, but in c127159, c97909, c96974, c119920, c42251, and c80216 showed clear differences. To identify SukJam, a combination of the contigs c127159 (180 bp), c97909 (143 bp), and c80216 (120 bp) was amplified. Taken together, these results suggest that the harvest time of silkworms can be determined using gene expression pattern analysis.

• Journal of the Korean Applied Science and Technology
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• v.37 no.2
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• pp.183-191
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• 2020

This study monitored the rheological properties of jams manufactured using the black ginseng and black garlic. The conditions for mixing black jam were black ginseng (X₁, 30-54 g), black garlic (X₂, 75-135 g), pectin 4.5 g, apple paste 270 g, and fructo-oligosaccharide 360 g. The response surface analysis was performed with springiness, cohesiveness, chewiness, brittleness and gumminess. The R²s of the regression equation for springiness, cohesiveness, chewiness, brittleness and gumminess were recognized at a significant level of 5 to 10 %, with 0.8948, 0.9103, 0.9032, 0.9097, and 0.8561, respectively. The combination conditions of black ginseng and black garlic with the highest springiness of black jam were found to be 194.39% (springiness) with black ginseng 54.00 g and black garlic 105.83 g, while the conditions of black ginseng and black garlic mixing with the lowest springiness were found to be 164.11% with black ginseng 31.48 g and black garlic 119.43 g. The mixing conditions of black ginseng and black garlic with the highest cohesiveness of black jam and its consistency were 40.96% (cohesiveness) with black ginseng 48.85 g and black garlic 129.62 g, while black ginseng and black garlic combination conditions with the lowest cohesiveness were found to be 32.96% with black ginseng 50.06 g and black garlic 82.77 g. Black ginseng and black garlic mixing conditions, which have the highest chewiness of black jam, was 43.19 g (chewiness) from black ginseng 42.95 g and black garlic 106.83 g. Black ginseng and black garlic mixing conditions and their brittleness were found to be the highest in black ginseng 32.10 g and black garlic 88.04 g to 16,874 g. Black ginseng and black garlic mixing conditions and their brittleness were found to be 678 g from black ginseng 50.53 g and black garlic 83.91 g. Black ginseng and black garlic mixing conditions and their gumminess were 14.06 g with black ginseng content of 32.91 g and black garlic content of 124.60 g. By examining the relationship between black ginseng/black garlic ratio and the rheological property of black jam from above results, it is believed that black jam can be produced for anyone to enjoy using health function material.

• Korean Journal of Ichthyology
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• v.27 no.1
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• pp.45-49
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• 2015

A single specimen (192 cm total length, TL) of the Pacific sleeper shark, Somniosus pacificus, belonging to the family Somniosidae, order Squaliformes, was firstly collected from the west margin of the East Sea, Korea in February 2008. This specimen was characterized by having interdorsal space, being less than the distance between the snout and first gill opening; and the distance between the snout and first dorsal fin origin more than 45% TL; head and body has overall dark brownish. The new Korean name "Jam-sang-eo-gwa" is proposed for the family Somniosidae, and "Jam-sang-eo-sok" for the genus Somniosus, and "Jat-bit-jam-sang-eo" for the species S. pacificus.

• Journal of Korea Society of Industrial Information Systems
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• v.12 no.1
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• pp.72-79
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• 2007

This paper will analysis the Jam-O-Drum developed for collaborative musical experience at first. And we suggest the multi-user interactive game system Kom-O-Drum(Korean Jam-O-Drum) as a Serious Game Platform By combining velocity, direction and touch sensitive input devices like a korea traditional drum "Jang Go" and computer graphics imagery into an LCD or PDP display up to four simultaneous players are able to participate in a collaborative approach to game's mission. Also we introduce the design of detail input device and application fields of Kom-O-Drum for Serious Game.

• Proceedings of the Korea Inteligent Information System Society Conference
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• 2001.01a
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• pp.179-185
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• 2001

Mobile agents have the unique ability to transport themselves from one system in a network to another. The ability to travel allows mobile agents to move to a system that contains services with which they want to interact and then to take advantage of being in the same host or network as the service. But most of conventional mobile agent systems require that the users or the programmer should give the mobile agent its detail behavioral script for accomplishing the given task. And during its runtime, such mobile agents just behave according to the fixed script given by its user. Therefore it is impossible that conventional mobile agents autonomously build their own plants and execute them in considering their ultimate goals and the dynamic world states. One way to overcome such limitations of conventional mobile agent systems is to develop an intelligent mobile agent system embedding a reactive planner. In this paper, we design both a model of agent mobility and a model of inter-agent communication based upon the representative reactive planning agent architecture called JAM. An then we develop an intelligent mobile agent system with reactive planning capability, IMAS, by implementing additional basic actions for agent moves and inter-agent communication within JAM according to the predefined models. Unlike conventional mobile agents. IMAS agents can be able to adapt their behaviors to the dynamic changes of their environments as well as build their own plans autonomously. Thus IMAS agents can show higher flexibility and robustness than the conventional ones.

• Proceedings of the KSR Conference
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• 2009.05a
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• pp.1886-1894
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• 2009

The widening national capital area of Korea has caused a traffic jam problem with increasing commuting hours. In addition, as the economic crisis goes on, the people moving to the outside of a city has increased. So we expect that the expansion of this metropolitan area will do grow and it will cause a more severe traffic jam in the near future. Therefore, We will study about 'Rapid Railroad Operation in Metropolitan Area' to solve this problem and improve rail's competitive power as a reasonable transportation method. The Rapid Railroad can sharply reduce commuting hours. Also, it is more eco-friendly transportation than the others. Through many cases revealed in both domestics and overseas, we will solve the problem of a traffic jam getting senous m metropolitan area. After studying successful cases of overseas, rapid railroad, such as France and Japan, we will study domestic cases of Yongsan$\sim$Dong-inchoen, Guro$\sim$Cheonan and Gaehwa$\sim$Sin-nonhyeon, and comparison will do made among these case. In conclusion, The introduction of Rapid Railroad show the effective plan for strengthen the competitiveness and solve the traffic problem.