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Development of Image Processing Program to Inspect Concrete Bridges (콘크리트 교량 외관조사용 이미지 처리 프로그램 개발)

  • Lee, Byeong-Ju;Shin, Jae-In;Park, Chang-Ho
    • Proceedings of the Korea Concrete Institute Conference
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    • 2008.04a
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    • pp.189-192
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    • 2008
  • Generally, the inspection is hard work and needs a lot of time. So, this work contains subjectivity of inspector owing to carry out the visual evaluations through naked eye. Thus, the result of inspection is not objective and reliable. The purpose of this study is to develop new inspection technique to solve above problems and to provide convenient inspection work. We make a new inspection system using digital image processing technology. This program can stitch each image and detect cracks of surface of concrete bridge. Also, It can extract an investigation drawing from the picture. Also, this program is a kind of management tools designed to have some functions such as converting the image data obtained from cameras to Data-Base format, searching and storing the data. At first, we try to make a automatic extracting program. But, changed by semiautomatic method because of various problems. Through field experiments, the application of this inspection system with specialty software has proven to be much faster, safer, and reliable than the inspections carried out by the naked eyes in managing safety of the bridges. The new inspection method may be able to make the inspection of bridge more efficient and reliable.

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Effects of Home Nursing Care on Self Care for Early Discharged Mothers Following a Cesarean Section (자가간호향상을 위한 제왕절개산모의 가정간호 효과)

  • Chang, Soon-Bok;Lee, Sun-Kyoung
    • Journal of Home Health Care Nursing
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    • v.8 no.1
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    • pp.38-49
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    • 2001
  • The purpose of this study was to evaluate the self care focused home nursing' care outcomes of parturient women following Cesarean sections, The subjects included 56 parturient women following a cesarean section, and they were randomly assigned to an experimental group or a control group, The experimental group included women who were discharged early from the hospital. 4-5 days after having a cesarean section. Home nursing care for the experimental group consisted of stitch removal. wound care and education for parturient women. Home nursing care was provided for 2-3 days after early discharge. The outcomes of self care focused home nursing care were measured by self-care competency. Data collection was done by a self-reported questionnaire and by a telephone interview 2-3 days after discharge from the hospital(control) or after home care (experimental) from December, 20, 1998 to June, 10, 1999. The questionnaire consisted of 25 items on 9 self-care domains. Data was analyzed by a t-test. and as $x^2$-test. The study results were as follows: 1. The general characteristics of both groups were similar except for the total number of pregnancies, and whether or not they wanted the pregnancy at this time. 2. The self-care competency scores for the experimental group receiving self care focused home nursing care were higher than the scores for the control group(t=2.361. $p{\le}.05$). 3. There was no significant difference in the rate of OPD visiting, readmission, or emergency room use between the two groups. We concluded that self care focused home nursing care is effective in promoting the self-care competency of parturient women following Cesarean sections. It is suggested that further study is needed with a larger sample to be able to generalize these results.

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A Study on the Characteristics of Fashion Illustration in the Fashion Industry (패션 산업에서 활용된 패션 일러스트레이션의 표현 특성)

  • Lee, Eun Jin;Choi, Yoo Jin;Kim, Jung Sook
    • Journal of the Korean Society of Costume
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    • v.63 no.5
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    • pp.72-86
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    • 2013
  • This research aims to analyze the expressive characteristics of the fashion illustration in various fashion products such as clothing, accessories, other fashion products, and magazine advertisements. Targeting 223 items of products that had adjoined fashion illustration from 2000 to 2008, which had been collected through from magazines and web sites using the fashion illustration expression categorization (expression technique drawing style, body expression, expression image, attaching method to product) based on the theoretical background and the general trends by products. In frequency analysis results, painting technique and graphic technique were of great importance in the expression technique, and shading drawing and contour drawing were of great importance over all product groups for the drawing style. In body expression, exaggerative expression was the highest; simple expression and realistic expression were of great importance over all product groups relatively. In particular, there was a very distinct difference by fashion products in expression image. Humor image has the most importance in fashion clothing and fashion accessories. Casual image is the most important in magazine advertisements, and feminine image is the most important for other fashion products. Lastly, in attaching method to products, finished goods printings made up the largest proportion over all products. In fashion clothing, textile printings was the highest in proportions. Stitch in fashion accessory, the original form of commodity in other fashion products. This study will become a very valuable source in fashion products development using fashion illustrations.

The Dentists' View of Dental Hygienist Duties in Korea

  • Han, Yang-Keum;Yu, Ji-Su;Kim, Seung-Hee;Yang, Jin-Young;Bae, Soo-Myoung;Hwang, Soo-Jeong
    • Journal of dental hygiene science
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    • v.20 no.1
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    • pp.34-43
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    • 2020
  • Background: The number and curriculum of dental hygienists in Korea have dramatically increased. Controversies have since resulted from insufficient job descriptions of the work performed by a dental hygienist. A dentist's perception was examined to legally reflect the actual work of dental hygienists. Methods: Four hundred and nineteen dentists were surveyed about the duties of a dental hygienist. Their views on the career and availability of each job were examined. The duties of the dental hygienist include 13 items in dental treatment preparation, 14 items of radiography, 21 items of preventive dentistry, 6 items of periodontal treatment, 12 items of oral medicine, 12 items of conservative dentistry, 8 items of prosthetics, 10 items of orthodontics, 7 items of oral and maxillofacial surgery, 6 items of implantation, 6 items of impression taking and model fabrication, 5 items of anesthesia and injection, 11 items of management and administrative, and 3 items of self-development. Results: Most of the duties were doable by a dental hygienist. Many dentists reported that managing implants, oral hygiene of special patients, some duties in oral medicine, teeth brightening, making temporary crowns, making individual trays, selecting shades, ligaturing, and precision impressions need ≥3 years of experience. Duties perceived by dentists not to be performed by dental hygienists were reading radiographs (55.4%), suture and stitch out (48.0%), intramuscular injection (36.0%), root planning (27.2%), cementation and removal of prostheses (23.2%), and examining pulp vitality (22.0%). Conclusion: Current laws are to be revised to include, the care provided by dental hygienists and under a physician's supervision. Flexibility is also needed to cope with rapidly changing dental technology.

A Study on the Tensile Deformation Characteristics of Knits and Appearance Using 3D Digital Virtual Clothing Systems (니트소재의 인장변형 특성과 3D 디지털 클로딩 시스템에 의한 외관표현에 관한 연구)

  • Choi, Kyoung-Me;Kim, Jong-Jun
    • Journal of Fashion Business
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    • v.16 no.2
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    • pp.151-162
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    • 2012
  • The industry-wide development of digital technologies has also affected the textile and fashion industries immensely. The applications of 3D technology, virtual reality, and/or augmented reality systems have helped to create novel fashion brands based on the marriage of IT and textile/fashion industries. 3D digital virtual clothing systems have been developed to help the textile and fashion industries in terms of the planning, manufacturing, marketing and sales sectors. So far, most of the development effort for the 3d virtual clothing systems has been focused on the woven fabrics. The characteristics of woven fabrics differ from those of knitted fabric. Since the physical structures and mechanical properties of the knitted fabrics are definitely different from those of woven fabrics, the simulation process for the knitted fabrics should follow different approaches. The loops in a knitted fabric deform easily. The deformation results in a readily stretchable fabric appearance. Cloth simulation mostly employs models that approximate the mechanical properties of linear elastic planes. This simulation scheme does not, however, describe well enough the behavior of knitted fabrics, which deviate largely from the linear isotropic material characteristics. This study aims at characterizing the tensile deformation and surface textures of a knitted fabric product. Tensile deformation curves for the wale, course, and bias direction are analyzed. The surface texture of the knitted fabric is analyzed by using a 3-dimensional scanning device.

Physical and Hand Properties of the Knitted Fabrics From Machine Knitting Fancy Yarns (기계편용 장식사 니트소재의 물성 및 감성 평가)

  • Park, Key-Yoon;Park, Myung-Ja
    • Journal of the Korea Fashion and Costume Design Association
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    • v.10 no.2
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    • pp.125-138
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    • 2008
  • For physical and hand property evaluation of fabrics, the knitted fabrics from 11 types of machines knitting fancy yarns, boucle (M1), knot (M2), snarl (M3), and slub (M4), tamtam (M5), tubular (M6), fur 1 (M7), bead (M8), fur 2 (M9), fur 3 (M10), and ladder (M11) yarns, were prepared with 7-10 G plain stitch. Washing test and pilling test had also been carried out. For hand properties by objective sensibility evaluation, 17 items of sir mechanical properties using KES-FB (Kawabata Evaluation System) had been measured. Then hand values of knitted fabrics were calculated with a calculation formula, namely KN-402-KT. Finally the total hand values were obtained through KN-301-WINTER. As a result of physical properties and objective evaluation for machines knitting fancy fabrics, most of them shrank in the direction of wale and course after the washing test, in which their shrinkage rate had a maximum of 3.5%. Therefore, the washing test indicated that the shrinkage ratio of knitted fabrics had a minor change. The results of the pilling test are mostly 4-5th grade, and all of the machines knitting fancy fabrics showed good results in the pilling resistance. In hand properties and objective sensibility evaluation, twisted fancy yarns, such as boucle (M1), knot (M2), snarl (M3), and slub (M4), were superior to bonding rigidity (B) and shear rigidity (G). The surface property between course and wale differs in all samples and course direction is tougher than wale direction. FUKURAMI (fullness and softness) of all samples have high values, besides NUMERI (smoothness) of tamtam (M5) and boucle (M1), which were rather good. Most samples except fur 1 (M7) had low KOSHI (stiffness) value. The total hand value (THV) of twisted yarns was low. This study proves that manufacturers, who plan knitting yarn products and knit fashion, can apply these data to develop machines knitting yarns and knits that fit the consumers' demands.

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Facial Texture Generation using an Image Registration Algorithm based on Ellipsoidal Prototype Model (타원체형 모델 기반의 영상정렬 알고리즘을 이용한 얼굴 텍스쳐 생성)

  • Lee Joong Jae;Noh Myung Woo;Choi Hyung Il
    • Journal of KIISE:Software and Applications
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    • v.32 no.1
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    • pp.22-33
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    • 2005
  • In this paper. we propose an image registration algorithm based on variable-sized blocks of ellipsoidal prototype model which is similar in shape to human face. While matching blocks, the existing cylindrical prototype model which only takes into account left and right curvature can accomplish a correct alignment on left and right images. But, registration errors are produced from up and down images because the cylindrical prototype model not reflects characteristics of head shape and jaw structure of human. The proposed method is a block matching algorithm which uses variable-sized blocks with considering left-right and up-down curvature of ellipsoidal face model and can correctly align images by using the correlation between them. We then adapt image mosaic technique to generate a face texture from aligned images. For this purpose, we stitch them with assigning linear weights according to the overlapped region and remove ghost effects to make more realistic facial texture.

Moving Object Preserving Seamline Estimation (이동 객체를 보존하는 시접선 추정 기술)

  • Gwak, Moonsung;Lee, Chanhyuk;Lee, HeeKyung;Cheong, Won-Sik;Yang, Seungjoon
    • Journal of Broadcast Engineering
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    • v.24 no.6
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    • pp.992-1001
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    • 2019
  • In many applications, images acquired from multiple cameras are stitched to form an image with a wide viewing angle. We propose a method of estimating a seam line using motion information to stitch multiple images without distortion of the moving object. Existing seam estimation techniques usually utilize an energy function based on image gradient information and parallax. In this paper, we propose a seam estimation technique that prevents distortion of moving object by adding temporal motion information, which is calculated from the gradient information of each frame. We also propose a measure to quantify the distortion level of stitched images and to verify the performance differences between the existing and proposed methods.

Morphological and Molecular Characterization of Toxocara apodemi (Nematoda: Ascarididae) from Striped Field Mice, Apodemus agrarius, in Korea

  • Kim, Hyeon Cheol;Hong, Eui Ju;Ryu, Si Yun;Park, Jinho;Cho, Jeong Gon;Yu, Do Hyeon;Chae, Joon Seok;Choi, Kyoung Seong;Park, Bae Keun
    • Parasites, Hosts and Diseases
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    • v.58 no.4
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    • pp.403-411
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    • 2020
  • Adult ascarid worms from the field mice, Apodemus agrarius, were observed with a light and scanning electron microscope, and molecularly analized with 18S rRNA gene. In the scanning electron microscope, 3 prominent labia were present in the anterior end of male and female worms, but the interlabia and gubernaculum were absent. Scanning electron micrographs showed cervical alae as vestigial organs that looked like a slightly uplifted superficial sewing stitch. Total 6 pairs of post-cloacal papillae were observed on the tail of the male worms. The tail of female worms was blunt and conical shape with a spine-like structure, mucron. The eggs were sub-globular, coated with the albuminous layer and 73 by 82 ㎛ in average size. The superficial pits of T. apodemi egg (mean 8.6×6.7 ㎛) are obviously bigger than those of Toxocara spp. The partial sequence of 18S rRNA showed the sequence homology of Toxocara canis (99.6%), Toxocara cati (99.4%), Toxascaris leonina (99.4%), and Toxocara vitulorum (99.2%). Conclusively, it was confirmed that ascarid nematodes, Toxocara apodemi, recovered from striped field mice in Korea are taxonomically conspecific relationship with genus Toxocara and genetic divergence from other Toxocara species.

The Distribution Condition and Clothing Construction Factors of the Working Clothes - Reference to the Changwon National Industrial Complex -

  • Park, Gin-Ah;Park, Hye-Won
    • Journal of Fashion Business
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    • v.12 no.3
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    • pp.116-135
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    • 2008
  • To investigate the actual distribution condition and clothing construction factors of the working clothes supplied to the Changwon national industrial complex, 5 major companies in machinery, automotive, industrial engineering, shipbuilding and rolling stock in the industrial complex located in Gyeongsangnam-Do were selected. The questionnaire designed for the research consisted of working clothes distribution policies in manufacturing industry and the actual conditions of the design facts, repair and maintenance of the working clothes, etc. The analysis of the clothing construction factors of the working clothes provided by 5 respondent companies were conducted in parallel. The results derived from the study were as follows: The basic types of working clothes were the blouson jacket and straight pants; safety equipments for manufacture were safety helmets, gloves, snickers, goggles, masks, ear caps, wristlets, leggings, apron, etc. The size-charts adopted by the participant companies were the small-medium-large and cm/inch measurement size systems. To solve wearer's dissatisfaction with the garment fit, certain clothing construction factors were used, e.g. strap bands and the elastic band on a waist band. The types of fabrics used for the working clothes were mainly polyester/cotton and polyester/rayon blended ones. Moreover, to provide with more air permeability to wearers, the warp knit material was used to construct the lining and the armpit or back bodice slits. Lock, two-thread chain, safety, overedge stitches were applied with flat, lap felled, French, superimposed, lapped, bound and edge finishing seams to construct the working clothes selected.