• KSII Transactions on Internet and Information Systems (TIIS)
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• v.7 no.10
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• pp.2464-2478
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• 2013

Image stitching techniques produce an image with a wide field-of-view by aligning multiple images with a narrow field-of-view. While conventional algorithms successfully stitch images with a small parallax, structure misalignment may occur when input images contain a large parallax. This paper presents an image stitching algorithm that aligns images with a large parallax by regional linear warping. To this end, input images are first approximated as multiple planar surfaces, and different linear warping is applied to each planar surface. For approximating input images as multiple planar surfaces, the concept of dominant edges is introduced. Dominant edges are defined as conspicuous edges of lines in input images, and extracted dominant edges identify the boundaries of each planar surface. Dominant edge extraction is conducted by detecting distinct changes of local characteristics around strong edge pixels. Experimental results show that the proposed algorithm successfully stitches images with a large parallax without structure misalignment.

• Journal of the Korean Society of Costume
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• v.58 no.3
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• pp.79-92
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• 2008

The purpose of this study is to develop knitwear design expressed not also Green but also LOHAS using natural yarns(wool and cotton) dyed with various natural sources(sappanwood, indigo plant, turmeric, cochineal, coffee, gallnut, and persimmon juice). This researcher tried to suggest solution scheme through the development of knitwear designs to break from the cottage industry and the limitation of design in Jeju and to preserve of traditional dye with persimmon juice simultaneously. Knitting is the formation of a fabric by the interlooping of one or more sets of yarns with hand knitting or industrial knitting. In hand-knitting, the two fundamental stitches are described as knit depending on the direction of the loop formation, front to back or back to front. In machine-knitting, the direction of loop formation is fixed, unless the stitch is mechanically transferred from front to back needle bed or vice versa. Industrial knitting technology can be divided into two main areas - weft knitting and warp knitting. Each has a different principle of construction. The majority of knitted fabrics for clothing are weft-knitted, and so this study is used weft-knitting and hand knitting technology. To achieve this purpose, researcher tried to present a lot of knitwear designs using yarns dyed with various natural sources focusing on Modern & Sophisticated Image and Elegance & Romantic Image to satisfy adult and missy consumer needs.

• The Research Journal of the Costume Culture
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• v.6 no.2
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• pp.163-180
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• 1998

The purpose of this study is to investigate the main characteristics of the environment-friendly design expressed in Koran fashion. Environment-friendly design can be categorized into choice of material, extension of products life cycle, and recycling design. In this study, Korean fashion designers can be found having the conciousness of environment for fashion design since 1990. First, in choice of material, the designers used Natural fibers which are cotton, linen, wool, and etc, and used natural dyes. Some of the designers have moved from using real fur to using fake fur for animal welfare. But fake furs produced from synthetic or regenerated fibers have the environmental problems during textile production processes. Some of the designers used fake leather made from the skins of an edible fish which are otherwise going to waste. Secondly, Design for extension of products life cycle can economize the resources and energy. Design for extension of products life cycle are classified into reversible clothing, many function clothing, modular style, patina clothing, simple style, and layered look. Finally, recycling design are classified into recycling of daily necessaries and expression techniques of recycling design which are designer's works used patchwork, mash techniques, and handmade of knits or buttonhole stitch.

• Journal of the Korean Society of Costume
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• v.51 no.4
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• pp.31-42
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• 2001

The purpose of this study was to develop a large representative data base for character goods marketing strategy. The study was to determine character name awareness in relation to segmented distribution regions and such demographic variables as sex and age. The author also analyzed preferred design. A total of 360 questionnaires were distributed and 359 reliable ones were used for statistical analysis. A SAS statistical package including frequency tables and Chi square test and factor analysis and Kendall′s relation analyses was used. The results are as follow : character name awareness involves "character name decognition" based on asking subjects to identify character names from 50 given names. "Tele-tubbies" was found to be a dominant commercial character name as a result of the recognition test, and "Sailer-moon" was found to be a dominant animation character goods as a result of the recognition test. Character recognition was significantly different in the segmented distribution legions, three age groups and different sex groups. People considered design first in purchasing any character goods, and they considered color second in purchasing them. The most favored part of garment far character to be stitch to was the center front in the T-shirt/dress shirt, the center back in the Jumper/jacket, back pocket in the trousers/skirt. The results of a Chi-square test showed that preferred part in the trousers/skirt of character was related with age variables.

• The Journal of Korean Medical History
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• v.23 no.2
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• pp.47-56
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• 2010

The objective of this article is to investigate and analyze the way how the suture surgery was operated in case of external wound or incision in past Korea. The method to do this study was to search the books on the website, Knowledge of Oriental Medicine Web Service, databased and serviced by Korean Institute of Oriental Medicine. The searching key word was '縫'. The results was as follows. According to the website search, ten subjects of suture surgery could be classified: sword wound(金瘡), horse bite(馬咬), intestine incision(腸肚傷), knife or ax wound(刀斧傷), larynx incision(割喉), intestine protrusion by cow collision(牛觸腸出), self-stabbing of neck(自刎), falling from tree(童稚上木墮下), lip injury(趺損唇皮) and face wound(顔面의 外傷). Furthermore, the kinds of suturing fiber, the way how to stitch, the kinds of medical care before and after the suture surgery could also be found

• Fashion & Textile Research Journal
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• v.2 no.2
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• pp.146-149
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• 2000

This study has been investigated the comparison of the seam strength of hand sewing with machine sewing using two kinds of sewing thread. On machine sewing, thread is used for sale, on hand sewing, thread is used for every fabric weft yarn. Breaking strength, efficiency and breaking mode of seams were examined under various sewing conditions using three kinds of fabric and three kinds of stitch type. The results obtained are as follows: The seam strength is not affected by sewing mechanism, but affected by a breaking mode : The type of slipped mode has a higher seam strength of hand sewing than that of machine sewing. When fabrics and threads were broken by a higher seam strength of machine sewing than that of hand sewing. Fabrics having low density using plain seam slipped more easily, so seam strength was greatly lesser. Fabrics having higher density had higher to seam strength. We should choose appropriate seams based on production, economy and aesthetics.

• Journal of Chest Surgery
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• v.49 no.6
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• pp.485-488
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• 2016

Different suture techniques have been used for anastomosis in coronary artery bypass graft surgery. Bypass surgery may be difficult for patients who have small coronary arteries or marked size discrepancies between target coronary arteries and grafts. For proximal and distal anastomoses, three continuous stitches are first placed in the heel and toe of the small coronary arteries; for sequential anastomosis, an interrupted eight-stitch technique is used. We applied these anastomotic suture techniques in patients requiring coronary artery bypass graft surgery, achieving an early angiographic patency rate of 100%.

• Steel and Composite Structures
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• v.29 no.1
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• pp.23-37
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• 2018

In this paper, seismic provisions related to built-up special concentrically braced frames (BSCBFs) are investigated under cyclic loading using non-linear finite element analysis of a single-bay single-story frame. These braces, which contain double angle and double channel brace sections, are considered in two types of single diagonal and X-braced frames. The results of this study show that current seismic provisions such as observing the 0.4 ratio for slenderness ratio of individual elements between stitch connectors are conservative in BSCBFs, and can be increased according to the type of braces. Furthermore, such increments will lead to decreasing or remaining the current middle protected zone requirements of each BSCBFs. Failure results of BSCBFs, which are related to the plastic equivalent strain growth of members and ductility capacity of the models, show that the behaviors of double channel back-to-back diagonal braces are more desirable than those of similar face-to-face ones. Also, for double angle diagonal braces, results show that the failure of back-to-back BSCBFs occurs faster in comparison with face-to-face similar braces. In X-braced frames, cyclic and failure behaviors of built-up face-to-face models are more desirable than similar back-to-back braces in general.

• Proceedings of the KWS Conference
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• 2002.10a
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• pp.181-186
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• 2002

Laser welding application for car body manufacturing has many advantages in the stiffness and the lightness of vehicle, the productivity of assembly line, and the degree of freedom in design. This presentation will express the innovation of car body manufacturing including parameter optimization, process modeling, and system integration. In this application the investment for systems was cut down dramatically by real time switching over the laser path between two welding stations. Points of technical discussion are as follows: optimization of parameters such as laser power, robot speed and trajectory, compact and useful design of jig & fixture to assure welding quality for 3 sheet-layer zinc-coated steel, system integration between 4kW Nd:YAG laser device and the other systems, on-line real time welding quality monitoring system, perfect safety standards for high power laser, minimization of consumption costs such as arc lamp, protective glass for optic, etc. Laser welding has found a place on Hyundai's production plant in conjunction with the startup of mass production of new sports car, and this production system is the result of a collaboration of its engineers. Outer side sheets are joined to inner side sheets by 122 stitch welds totally. And the length is about 2.4meter.

• Journal of Korean Foot and Ankle Society
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• v.9 no.1
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• pp.38-41
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• 2005

Purpose: To evaluate the drainage effect of silk suture following aspiration of the bursa as an early treatment of chronic lateral malleolar bursitis. Materials and Methods: Thirteen cases, which have over two weeks of history and over one year of follow-up, were investigated. The average duration of follow-up was 16.4 months. The average symptom duration before introduction into this study was 7.8 weeks. With an aseptic technique, the aspiration of the bursa was done with 18G needle and syringe and then the insertion of silk suture through the aspiration needle was performed. The amount of drainage was identified two or three times in a week and stitch out was done at the cessation of drainage. Over one year follow-up, recurrence, infection, pain, and limitation of range of motion were investigated by telephone interview. Results: Redness around the insertion site of silk suture was found in all cases, but there was no development of active infection or recurrence. The average duration of treatment is 10.4 days. Conclusion: The drainage with silk suture following aspiration of the bursa is less invasive and very effective method in the early treatment of chronic lateral malleolar bursitis.