• Journal of the Korea Society of Computer and Information
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• v.21 no.11
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• pp.31-38
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• 2016

In this paper, we propose multi-scale infrared target detection algorithm with varied filter size using integral image. Filter based target detection is widely used for small target detection, but it doesn't suit for large target detection depending on the filter size. When there are multi-scale targets on the sky background, detection filter with small filter size can not detect the whole shape of the large targe. In contrast, detection filter with large filter size doesn't suit for small target detection, but also it requires a large amount of processing time. The proposed algorithm integrates the filtering results of varied filter size for the detection of small and large targets. The proposed algorithm has good performance for both small and large target detection. Furthermore, the proposed algorithm requires a less processing time, since it use the integral image to make the mean images with different filter sizes for subtraction between the original image and the respective mean image. In addition, we propose the implementation of real-time embedded system using FPGA.

• Journal of the Korean Institute of Telematics and Electronics A
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• v.31A no.8
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• pp.91-99
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• 1994

Damage induced by Si ion implantation and its annealing behavior during rapid thermal annealing were investigated by cross-sectional TEM (transmission electron microscopy) and RB ( Rutherford backscattering) spectrum. 150keV and 50keV Si ions were implanted in Si (100) at room temperature with doses of 2${\times}10^{15}cm^{-2}$. And 100keV Si ions were implanted in Si with doses from 1${\times}10^{14}cm^{-2}$. A variety of damage structures were generated by Si ion implantation such as continuous amorphous layer extending to the surface buried amorphous layer and damage clusters. Damage clusters are annealed out at the lower annealing temperature of 550 $^{\circ}C$. However, event at the temperature of 110$0^{\circ}C$ end of range loops remain in the original lower amorphous/crystal interface in the case of continuous and buried amorphous layer formation. Extended defects in the shape of zipper dislocations are also observed at the middle of the recrystallized region in the buried amorphous layer.

• Journal of architectural history
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• v.19 no.6
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• pp.23-38
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• 2010

This Hee Kyeong Ru, a kind of "Nu-Gak" in Gwangju is a high storied old government official building memorizes the recovery of Gwangju area reputation. Hee Kyeong Ru, literally means, delightful and happy occasions. This kind of the buildings were build for the receptions and the banquets for the high government officials in travelling areas to areas. It provided very high formality as compared to the buildings in the mountains. Nu-Gak buildings have a lot in common, since they had been constructed under the influence of the then time period and for the common reasons. Several records about Hee Kyeong Ru can be found in the old literatures, poetries, pictures and atlases. Also, we can see the shape of the building and the location through the mark in the old map. According to the historic materials, Nu-Gak buildingsof other old goveenment offices with Hee Kyeong Ru are similar to that of the size and construction. So we can draw the common points of the existing old official buildings and could assume the original form of Hee Kyeong Ru. In conclusion, we need to restore Hee Kyeng Ru as the historical meaningful building and use it as a representative cultural building in Gwangju.

• Journal of Plant Biology
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• v.37 no.1
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• pp.53-67
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• 1994

The opal phytolith types in Oryza sativa L. were examined with light and scanning electron microscope, and we suggested the standard tenninoligies based on original cells of the phytoliths in situ. The distinctive fonus of opal phytoliths were observed in all plant parts such as leaf blade, leaf sheath, culm, root, glume, lemma, and palea. The phytolith fonus originated from long cell, short cell, and dennal appendages were different from part to part. The opal phytoliths derived from the long cells showed the most various form: twelve types were identified based on side wall shape. The results showed that the leaf blade did include almost all types of opal phytolith observed in the other parts of rice.f rice.

• Transactions of the Korean Society of Mechanical Engineers
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• v.11 no.3
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• pp.488-500
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• 1987

The improvement of surface roughness of machined cylindrical rods through the plastic polishing process was studied in this paper. The criterion and limits for the plastic polishing process due to the wave motion of the ridge were established with respect to process variables: ridge shape and size, semi-cone die angle as well as friction factor, by the application of the upper-bound approach. The surface roughness of the plastic polished products was measured, and compared with that of the original specimen. Also the depth of the surface deformation layer was tested, and compared those of the theoretical values. Qualitative agreement exists between the experimental plastic polishing loads and theoretical loads. The wave motion of the ridge was mostly occurred within the established limits. The surface roughness of specimens was sufficiently improved through the present process. Also the predicted depth of the surface deformation layer was in good agreement with experimental results.

• Journal of Fashion Business
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• v.22 no.1
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• pp.20-40
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• 2018

The purpose of this study is to examine the concept of surrealism and its expression technique and to develop creative and artistic women's coat design based on the analysis of various expression techniques of surrealistic artists and designers. To this end, literature review was done and design and actual works of women's coats were made. Surrealism was applied to fashion by Schiaparelli in the 1930s and it has constantly been applied by many fashion designers. The examples used in fashion were examined by shape of body parts or natural objects, metaphor and transformation of objects, position change and optical illusion. Based on this examination, motifs were drawn from paintings of Rene Magritte, Salvador Dali, Vladimir Kush, and Rafal Olbinski, who most inspired contemporary fashion designers with their works. The creative and artistic sense of five women's coats for 20's and 30's were designed using surrealistic paintings and fashion design expression techniques in a view of social problems. This study has a significance in that it expanded the expression techniques of fashion design and its field with original design which is inspired by surrealistic formativeness and expression technique with social criticism. It is also possible for this study to contribute to the development of fashion design if various designs are presented through grafting various artistic expression techniques onto fashion.

• Journal of the Korea Computer Graphics Society
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• v.17 no.3
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• pp.33-42
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• 2011

We present a new technique for removing interior knots of parametric B-spline curves. An initial curve is constructed by continuous $L_{\infty}$ approximation proposed by Eck and Hadenfeld. We employ Hausdorff distance to measure the shape difference between the original curve and the initial one. The final curve is obtained by minimizing their Hausdorff distance. We demonstrate the effectiveness of our technique with experimental results on various types of planar and spatial curves.

• Journal of the Korea Fashion and Costume Design Association
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• v.16 no.4
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• pp.37-47
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• 2014

Recently, the Korean wave has caused many foreign nations to pay attention to various fields including Korean culture, arts, fashion and beauty. Korean images so far were mainly discussed in terms of aesthetics, and there is lack of efforts to visually shape Korean images. On the contrary, Oriental images focused around Japan and China have greater global influence and better globalized fashion styles compared to Korea. Therefore, it is necessary to suggest a globalized proposal of Korean fashion styling which reflects original and unique aesthetic characteristics of Korea that can be accepted by the global market. In this study, the concept and types of fashion styling and stylists were examined, as well as the definition of Korean image and types and characteristics of Korean images shown on fashion magazines. Also, after collecting photographs having Korean images that were included in the editorial fashion styling of Vogue Korea, their characteristics were analyzed. The results of interviews with professional fashion stylists were summarized to propose an editorial fashion styling with Korean image for overseas consumers who long for and wish to imitate Korean fashion styling.

• Journal of the Korean Ceramic Society
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• v.40 no.3
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• pp.219-224
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• 2003

Fly ashes containing 6.1~16.5 wt% of unburned carbon were treated thermally at 500$^{\circ}C$ for 3 h and thus, the content of unburned carbon was decreased below 2.1 wt%, the range of particle size distribution became narrower and the mean particle size became smaller. Besides, the properties of particles in fly ashes were improved, particularly the particle shape became close to a spherical type. The fluidity of cement pastes containing fly ashes treated previously at 500$^{\circ}C$ for 3 h was increased much than that of cement pastes containing original fly ashes. When the added amount of superplasticizer was over the saturation amount, there was no correlation between the amount of unburned carbon in fly ashes and the apparent viscosity of cement pastes actually. On the contrary, when the added amount of superplasticizer was below the saturation amount, there was a correlation.

• The Journal of the Korean dental association
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• v.16 no.2 s.105
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• pp.107-112
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• 1978

The followings are dealing with 10 dental alloys with less then 30% gold, manufactured by S company 7, and by H company 3. We could find several noticable things by examining them about tarnish and corrosion with human saliva and several other chemicals, and through metal microscopy. 1) After the samples were submerged in human saliva for 3 months, the colour of the samples were no remarkable change. 2) taking a consideration of the error of santorius balance, also there had been little corrosive changes in human saliva. 3) The colour of A-4 was changed into red in 0.05% HCI solution, while that of P-B was changed into black in 0.1% Na₂S solution and severely corroded samples, P-B, X, and Z lost their original colour and turned black. 4) In case of submerging in H₂NO₃reagent, 50%, it caused serious diminishing changes in weight, that is, X 2.7%, Pb 31.0%, Z 40.5%, and there happened tremble corrosive reaction. 5) Seeing them through metal microscopy, we can obserre the corroded samples changed into the shape of.