• Korean Journal of Fisheries and Aquatic Sciences
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• v.23 no.3
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• pp.192-197
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• 1990

The study of characteristics of phosphorus release in Nakdong Estuary Barrage was conducted in June and July, 1989. Batch type reactor was designed for evaluating of release flux. The fractional composition of organic phosphorus and inorganic phosphorus in sediment were $34.7\%,\;66.7\%$, respectively. Inorganic phosphorus was fractionated into three types; Adsorbed-P, Non Apatite Inorganic-P, Apatite-P. The major forms of inorganic phosphorus were Non Apatite Inorganic-P($61.1\%$) and apatite-P($30.0\%$). Release rates of phosphorus from sediment were $-4.4mg/m^2/d$ in aerobic condition, and $39.4mg/m^2/d$ in anaerobic condition. According to the result of this study, sediment plays an important role in Nakdong Estuary Barrage as an internal load source of phosphorus.

• Journal of Digital Contents Society
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• v.16 no.1
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• pp.145-155
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• 2015

Into the 1990s, there have been changes in perception of pop culture consumers by making a distinction between groups that are active, critical and creative. This study aims to establish a theoretical reasoning for conventions organized and participated voluntarily by fans, which has been especially noticeable in the American subculture for a long time, while investigating how fans and all the parties concerned interact at conventions then to expand the imaginary world. To this end, an analysis has been carried out on the conventions for the particular American TV series of Supernatural. The results show that the reason for this drama series maintaining such enduring vitality as if a living thing is attributable to the special bond of sympathy developed between fans and actors and the following interactions between them. Furthermore, in the aspect of cultural sociology, a piece of work can only be completed through unconstrained interpretation of the work and the resultant recreation by the creator and the receiver, which has been ascertained by this study.

• The Research Journal of the Costume Culture
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• v.17 no.2
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• pp.270-282
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• 2009

The purpose of this study was to inquire into lounge wear and Jeff Koons and to design lounge wear in which the works, Balloon Dog(1994$\sim$2000) and Hanging Heart(1994$\sim$2006), of Jeff Koons was applied. The concept of design was appealed as sensuousness, activeness, and comfort. The target of design was teens and those in their 20s. Knit or woven fabric in 100% cotton/silk and cotton blended was selected. The design had fitted silhouette and the items were bras, panties, pajama pants, shorts, robes, slippers etc. Adobe Illustrator CS2 and Adobe Photoshop CS2 program were used for the design. In the lounge wear in which Balloon Dog applied, main color was red, blue, and green with pale tone and frills and pleats were selected for the details. Elastic blended fabric was used for the comfortable. Variety application of color and patterns were conducted for rhythmical visual. In the lounge wear design in which Hanging Heart applied, main color was also red, blue, and green with pale tone. Halter neck and robes were selected for the sexy looking. Cool and soft feelings were pursued through use of cotton and silk blended fabrics or stripes patterns. The result of this study may give valuable information to merchandisers and designers who develop lounge wear. It may also provide designers who use computer program such as Adobe Illustrator and Adobe Photoshop as design tools with useful examples.

• Restorative Dentistry and Endodontics
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• v.28 no.4
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• pp.314-325
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• 2003

이 연구의 목적은 수종 상아질 접착 시스템과 복합 레진 및 resin-modified glass ionomer를 상아질 표면에 접착하여 재료 및 상아질내 위치에 따른 미세전단결합강도를 측정, 비교하는 것이다. 상아질 접착 시스템으로는, 3-step인 Scotchbond Multi-Purpose Plus, 2-step인 Single Bond와 자가 부식형 시스템인 Clearfil SE Bond를, 1-step인 Prompt L-Pop을 사용하였다. 이와 함께 hybrid type의 복합 레진인 Clearfil AP-X와 2250을 사용하였으며 resin-modified glass ionomer로는 Fuji II LC를 사용하였다. 상악 소구치를 치아의 근원심 중앙부를 절단하여 상아질면을 노출시켰다. 5개 실험군으로 분류하고 상아질면을 위치에 따라 치관부의 occlusal $\frac{1}{3}$, middle $\frac{1}{3}$, cervical $\frac{1}{3}$과 치근부로 구분지어 시편을 부착하였다. 미세전단결합강도측정는 Universal testing machine(EZ-test; Shimadzu, Japan)에서 측정하였다. Occlusal 1/3부위에서는 SE가 가장 높은 값을, SM과 SB간에는 유의차가 없었으며, PL, GI순으로, Middle 1/3부위에서는 $SM{\;}{\geq}{\;}SE{\;}{\geq}{\;}SB{\;}{\geq}{\;}PL{\;}{\geq}{\;}GI$순으로, cervical 1/3부위에서는 SM, SE, SB간에 유의차가 없었다. Root dentin에서는 SM이 가장 높은 값을 보였으며 SE, PL, GI간에 유의차가 없었다. SE만이 치관부 상아질에 비해 치근부에서 유의할만한 결합강도의 감소를 나타냈다(p<0.05). GI는 치관부 상아질에서는 다른 군에 비해 유의성 있게 낮은 결합강도를 보였으나 치근부에서는 SE, PL과 유의차가 없었다.

• The Journal of the Korea Contents Association
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• v.13 no.4
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• pp.155-169
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• 2013

This research aims to consider the participatory behaviors and the relationship building of the Hong Kong Korean Wave fans on YouTube and to explores the effect of the behaviors in order to spread the Korean Wave. Furthermore, this research seek ways of developing the Korean Wave contents based on fan participation on YouTube. The research conducted both Focus Group Interview and three rounds of email interviews with the Korean Wave fans in Hong Kong. They actively participated in expressing themselves, replying to other comments, and providing video contents as a fan. Also, the fans delivered the YouTube video contents to other Social Network Services(SNS), including facebook, and online fan pages in order to build ties with friends and other the Korean Wave global fans in daily lives. Their YouTube participation contributes to creating two-way communication between the Korean Wave and its global fans by spreading and re-creating the Korean Wave contents.

• Journal of Korean Society of Environmental Engineers
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• v.35 no.8
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• pp.579-585
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• 2013

Persistent Organic Pollutants (POPs) are chemical substances which persist in the environment, bioaccumulate through the food web, and pose a risk of causing adverse effects to human health and the environment. POPs are thermally stable, highly lipophilic and water-insoluble compounds which can induce various toxic influences including immunotoxicty, carcinogenicity adverse effects on reproduction, development and endocrine fuctions. Polybrominated diphenyl ethers or PBDEs, are organobromine compounds that are used as flame retardant. Because of their toxicity and persistence, the industrial production of some PBDEs is restricted under the Stockholm Convention, a treaty to control and phase out major POPs. In this study, PBDEs was measured in various site of Sihwa industrial complex to investigate concentration distribution of POPs. The levels of PBDEs in house dust samples were 0.722~44.024 ng/g-dry. In PBDEs congener, BDE-209 was relatively higher in the all sites. The concentration of BDE-209 measured over 80.0% of total PBDEs. In various site, high molecular PBDEs homologues are measured higher than low molecular.

• Journal of Digital Convergence
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• v.16 no.10
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• pp.235-241
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• 2018

The printout management system should analyze the pattern of existence of personal information (resident number, card number) in the output log and users should be provided with functions such as warning message pop-up, forced printing termination, mailing to administrator, independently logs management. Authentication management can also be performed only by registered users by installing an agent on a user PC, and it should have a restriction function to permit or deny work according to user information. In addition, when printing/copying/scanning using this equipment, it is possible to use document printing and multifunction copier after ID card authentication and ID/PW should be input to device when ID card is not used. In this study, we developed these interfaces with WOWSOFT co., Ltd, a security company that has better technology than the existing printout security methods, to construct the printout management system. Also we designed the interface of basic functions necessary for printout management and contributed to the establishment of printout management system.

• Journal of Digital Convergence
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• v.16 no.10
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• pp.281-288
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• 2018

Cigarette warning pictures are one of the most effective smoking cessation policies, and this is an effective way to promote smoking cessation by conveying the risk of smoking through pictures. However, the recent advertisement of new cigarettes in retail stores has potentially increased tobacco purchase intention by weakening the effect of the warning picture. Therefore, this study examined the problems of the new cigarette advertisement method by analyzing the effect of this method on cigarette warning pictures. For this purpose, 275 men and women were surveyed nationwide, and this study compared the cognitive and emotional effects, and purchase intentions of the new cigarette advertisements with existing advertisement methods through MANCOVA. The results show that the new cigarette advertising method affects the emotions, cognitions, and purchase intentions related to the cigarette warning pictures and have adverse effects on the original purpose of the cigarette warning pictures. This implies that regulatory standards and institutional arrangements are necessary for effective new cigarette advertising.

• Journal of the Korea Computer Graphics Society
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• v.19 no.1
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• pp.11-20
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• 2013

This paper introduces a user interface for large 3D meshes in mobile systems, which have limited memory, screen size and battery power. A large 3D mesh is divided into partitions and simplified in multi-resolutions so a large file is transformed into a number of small data files and saved in a PC server. Only selected small files specified by the user are hierarchically transmitted to the mobile system for 3D browsing and rendering. A 3D preview in a pop-up shows a simplified mesh in the lowest resolution. The next step displays simplified meshes whose resolutions are automatically controlled by the user interactions. The last step is to render a set of detailed original partitions in a selected range. As a result, while minimizing using mobile system resources, our interface enables us to browse and display 3D meshes in mobile systems through real-time interactions. A mobile 3D viewer and a 3D app are also presented to show the utility of the proposed user interface.

• Korean Journal of Agricultural Science
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• v.40 no.1
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• pp.35-45
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• 2013

The fat content, fatty acid composition, trans fatty acid content and triacylglycerol (TAG) composition of 22 chocolates (domestics 8, foreigns 14) collected from the Korea distribution markets were investigated. The crude fat was extracted by acid hydrolysis method and analyzed by gas chromatography (GC) and reversed-phase HPLC for fatty acid and TAG compositions, respectively. The crude fat content of all chocolates varied between 30.11% and 49.59%. The major fatty acids in most of the chocolates were palmitic acid (19.36~31.15 wt%), stearic acid (5.11~36.32 wt%) and oleic acid (18.77~36.68 wt%). Whereas lauric acid (approximately 35.43 wt%) was detected in chocolate fat of sample No. 18. High oleic acid content was observed for the sn-2 position fatty acid with a range from 64.91% to 86.93%. Trans fatty acid contents in domestic chocolates (sample No. 1~8) and foreign chocolates (sample No. 9~22) were 0.03~0.59 wt% (0.01~0.19 g/100g chocolate) and 0.05~6.32 wt% (0.02~1.99 g/100g chocolate), respectively. In TAG composition, TAGs such as POP/PPO(1,3(2)-palmitoyl-2(3)-oleoyl glycerol, PN=48), POS/PSO(palmitoyl-oleoyl-stearoyl glycerol or palmitoyl-stearoyl-oleoyl glycerol, PN=50), SOS/SSO(1,3(2)-stearoyl-2(3)-oleoyl glycerol, PN=50) were mainly detected in most of the chocolates. The peaks of TAG with low PN (ex, 32-34, 36-38, and 40-42) were detected in No. 18 chocolate fat because of containing short chain fatty acid such as lauric acid.