• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.9 no.1
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• pp.31-37
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• 2009

This paper casts an application of an extended fuzzy integral on the selective extraction of color clusters characterized by a particular color hue from color document images. Despite of the negative role of fuzzy integral, the presented approach attains the detection of the seals through the neighborhood information via the center of area method. The conventional fuzzy integral evaluates the negative aspects of the importance about the items by min operator, which result in the discontinuous parts of seals. In an attempt to cope with the drawback our approach considers the integral aspects via the center of area method, which results in the robustness of the images. Finally, the framework is successfully tested on a data set formed by documents from a real application for the detection.

• The Journal of the Korean dental association
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• v.25 no.9 s.220
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• pp.861-872
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• 1987

The Purpose of this study was to know the differences between the occlusal plane angles formed by F-H plane on cephalograms and the occlusal plane angles by the upper margin of the articulator, and to ind the contributing factors to the difference of occlusal angles. for this study, 39 young adults (20 men, 19 women) were selected who had normal occlusion, no severe attrition, no missing tooth, not been under orthodontic treatment and occlusal equilibration and no temporomandibular disorders. The maxillary casts were mounted with Hanau 159-1 ear piece type face-bow and measured the occlusal plane angle with prototype occlusal plane projector. The following results were obtained; 1. The mean value of the ear rod F-H plane occlusal angle was 14.75˚, articulator occlusal angle was 9.26˚ and strong positive correlation between these angles, 2. It was almost same angle between the ear rod F-H plane angle (14.75˚) and the beyron point to infraorbital rim-6mm. occlusal angle (14.46˚) 3. The mean distance from the ear rod porion to the Byron point was 5.67mm. 4. It was no significant correlation between the distances Po-Beyron point, Or-infraorbital rim and articulator occlusal angle.

• The Transactions of The Korean Institute of Electrical Engineers
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• v.59 no.1
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• pp.102-107
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• 2010

Dye-sensitized solar cell (DSC) has been expected to be an alternative to the conventional silicon solar cell due to simple manufacturing process and low fabrication casts. In order to improve productivity of DSC, we attempted to optimize the required time of the adsorption process. According to the change in the adsorption time from 1 to 24h, We analyzed the output characteristics and the change of internal impedance. As a result, The outputs of DSC were continuously increased until 12h of the adsorption time and remained the same after that. Also, We reconfirmed this result that 12h was optimum adsorption by the analysis of the electrochemical impedance spectroscope because the internal impedance was similar to the output.

• Journal of the Korean Society for Precision Engineering
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• v.19 no.8
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• pp.116-125
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• 2002

Semi-Solid Diecasters usually carry out the Semi-Solid diecasting experiments before producing new casts. At the Semi-Solid diecasting stages, the runner-gate part has been always repeatedly corrected, which leads to a tedious processing time and increased processing cost. A large amount of experience is essential in manual assessment and if the design is defective, much time and a great deal of efforts will be wasted in the modification of the die. In this study, design system has been developed based on design database. In addition, gate experiment for gating system design has been carried out to append the database. It is possible for engineers to make efficient gating system design of Semi-Solid diecasting and it will result in the reduction of expenses and time to be required. The detailed contents of the research are described in the followings.

• Asian Pacific Journal of Cancer Prevention
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• v.15 no.3
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• pp.1075-1079
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• 2014

MicroRNA expression is a research focus in studies of tumors. This article concentrates attention on potential links between tumors caused by mouse mammary tumor virus (MMTV) and human breast cancer, in order to provide theoretical basis for using mouse model to search for miRNA effects mediated by Wnt/beta-catenin signaling in human breast cancer. By analyzing interactions between miRNAs and the Wnt/beta-catenin signaling pathway in breast cancer, we hope to casts light on more biological functions of miRNAs in the process of tumor formation and growth and to explore their potential value in cancer diagnosis, prognosis and treatment. Our endeavor aimed at providing theoretical basis for finding safer, more effective methods for treatment of human breast cancer at the miRNA molecular level.

• Proceedings of the Korean Operations and Management Science Society Conference
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• 1995.04a
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• pp.208-215
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• 1995

Numerous solution methods for scheduling problems such as part dispatching problem, operation sequence problem have been suggested as a means to be embedded in hierarchical or centralized shop floor control. Under the preceding control philosophies, however, response to changes in the shop floor status is quite slow and timely decision is sometimes impossible. Moreover, the control software becomes too large and it is almost impossible to modify the control software when the configuration of the shop floor changes. In agile manufacturing which emerged recently to cope with quick response and easy modifiability when unexpected changes occur, a new control policy is needed. CSCW[Computer Supported Cooperative Work] based shop floor control casts a different view on scheduling problems. Decisions are made locally when requested and useful information is scattered among agents for its efficient use. Adaptation is easy because agents are -'plug compatible or portable. In this paper, scheduling problems occurring under CSCW based shop floor control are identified and characterized. Traditional scheduling problems are reviewed from the CSCW viewpoint. All the control entities involved in the shop floor can be found and used to defined agents. With these entities and CSCW concept, possible scheduling problems are identified.

• The Journal of the Korea Contents Association
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• v.20 no.9
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• pp.11-18
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• 2020

Korean entertainment programs have attempted to change formats to reflect the viewers' preference for the unexpected progress of narrative. Casts have used their public identity and it contributes to strengthen the realism by providing their realistic reactions. This study is to advance understanding of entertainment characters' characteristic by classifying character types and analyzing main types that have been appeared repeatedly. This study suggests securing diversity of entertainment characters by noticing character types appearing at low frequency in classification.

• Korean Journal of Veterinary Research
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• v.42 no.4
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• pp.437-442
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• 2002

The observations of the anatomical closure of the ductus venosus (DV) and vestige of DV were studied in 22 cattle, ranging from 210-day-old fetus to 3-years old Korean native cattle. Vinylite solution was injected into the hepatic, portal, umbilical veins and caudal vena cavae of 22 specimens for vinylite corrosion casts. The DV originated at the confluence of the umbilical and portal veins and emptied into the left hepatic vein or posterior vena cava. The DVs were persisted in a 210-day-old fetus, a 240-day-old fetus, and a 270-day-old fetus. Two newborns, two 2-year-old and two 3-year-old cattle had no rudimentum of DV (6 cases, 31.58%). However, vestiges of DV in varying sizes were observed in a 14-day-old, a 3O-day-old, two 180-day-old and nine adult cattle (13 cases, 68.42%). The lengths of vestiges of DV were about 4.97~99.66 mm. Therefore, the present study demonstrates that DV in cattle can be degenerated during the late period of a pregnancy.

• Water for future
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• v.16 no.3
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• pp.159-169
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• 1983

In this paper, a linear programming was used for determining the optimum efficiency required of each wastwater treatment facility and minimum total treatment casts in order to meet any set of stream dissolved oxygen standards within a river basin. The optimum solution of water quality control which was obtained with the inventory equation of Camp-Dobbins' equation incorporated into the constraints of linear programming was compared with that of Streeter-Phelps' equation. It can be concluded that correlation coefficient was 0.997. Then the linear programming incorporating the inventory equation of selected streeter-Phelps equation was used in order to obtain the optimum solution of water quality control based on data form the Nakdong River.

• The korean journal of orthodontics
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• v.11 no.2
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• pp.143-150
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• 1981

Casts of 180 Korean male and female with normal occulsion of early permanent dentition (from dental age of Hellman III C, to IV A) were studied to measure the mesiodistal crown diameters and to calculate the coefficients of correlation between the teeth. From the study, the following conclusions were made: 1. Mesiodistal dimension of maxillary central incisors, canines, first molars and mandibular canines, first premolars, second premolars and first molars of male are larger than that of female. 2. Korean teeth are roughly intermediate between those of American Caucasian and those of American Negro. 3. In both sexes, the relation between the first and second premolars appeared highly correlated not only in the maxillary arch but also in the mandibular arch, and the relation between the central incisor and lateral incisor appeared highly correlated in the mandibular arch. 4. The relation between the maxillary and mandibular first premolars appeared highly correlated in both sex, and the relation between the maxillary canine and mandibular canine in male as well as between the maxillary central incisor and mandibular central incisor in female appeared highly correlated.