• Title/Summary/Keyword: High-visibility

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Dyeing for High-Visibility on Recycled Polyester Fabrics (재생 PET 소재에 대한 Hi-Vis. 염색가공 기술 적용)

  • Hong, Jin-Pyo;Yoon, Seok-Han;An, Hun-Ju
    • Proceedings of the Korean Society of Dyers and Finishers Conference
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    • 2012.03a
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    • pp.120-120
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    • 2012
  • 최근 주야간 산업현장의 근로자 안전성을 위한 식인성이 우수한 Hi-vis. 염색이 work-wear에 많이 적용되고 있으며, Hi-vis. 염색에서의 형광색상은 차별화된 패션성을 원하는 소비자에게도 레져용, 아웃도어용, 캐쥬얼 등에 많이 사용되고 있다. 형광염료는 주로 안료나 PET용 분산염료로의 전개가 일반적이며, 예전에는 형광안료 코팅을 통한 필름이나 테이프 등이 많이 사용되었으나 최근에는 의류에 직접 염색공정을 적용하는 기법으로 형광분산염료가 많은 용도에 적용된다. 이러한 고가시 산업용 work-wear는 주간에는 선명한 색상을 띄며, 야간에는 빛나는 재귀 반사의 성능을 지니며 대표적인 형광컬러는 Yellow, Red-Orange, Red, Yellow-Orange, Pink, Green, Yellow-Green 등 색상이 있다. 고가시성 안전의류(High Visibility Warning Clothing) 기준의 색도 좌표 및 일광 견뢰도 등 성능을 만족해야 하며, 대표적인 규격은 유럽의 EN-471로 일광, 마찰, 세탁, 땀, 드라이클리닝, 염소 등 견뢰도에 대한 각각의 합격기준이 있으며, 색도 및 형광팩터 등의 기준에 맞는 염색처방이 필요하다.

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The Effects of Preferred Images of School Uniform and Free Clothing on Preferred Images of Hair among High School Girls (여고생의 교복과 자율복 선호이미지가 헤어 선호이미지에 미치는 영향)

  • Park, Younghee;Choi, Sookyoung
    • Journal of Fashion Business
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    • v.21 no.1
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    • pp.32-44
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    • 2017
  • The purpose of this study is to investigate the effects of preferred images of school uniform and free clothing on preferred images of hair among high school girls. The data were collected between November and December 2014 from 300 high school girls in their's, living in Changwon province. The data have been analyzed by using SPSS program. The methods of factor analysis, reliability analysis, and multiple regression have been adopted for the data analysis. The results of this study are as followings: The factors of preferred images of school uniform consist of six dimensions of attention, neatness, vividness, visibility, practicality, and trend. The factors of preferred images of free clothing consist of six dimensions of neatness, practicality, attention, vividness, visibility, and trend. The factors of preferred images of hair consist of six dimensions of concentration of attention, convenience, elegance, attention, trend, and cuteness. Preferred images of school uniform and free clothing resulted in a correlation with preferred images of hair. Preferred images of school uniform and free clothing had an influence on preferred image of hair. It is highly expected that this study is used as the useful sources of marketing plans of fashion industries targeting high school girls.

A Study on the Fire Safety of High-rise Apartments Based on Fire Door Switch and Automatic Fire Extinguishing System

  • Zhang, ZeChen;Kong, Ha-Sung
    • International Journal of Advanced Culture Technology
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    • v.9 no.4
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    • pp.424-430
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    • 2021
  • The purpose of this study is to analyse the characteristics and spreading laws of parameters such as fire smoke, concentration of CO, visibility, and temperature at fire scene in high-rise residential buildings under the different conditions of fire doors and automatic fire extinguishing systems. Using Pyrosim to simulate diverse fire scenes in a high-rise apartment with corridors, to analyze the changes in those parameters. The results show that when a fire occurs, closing the fire-fighting corridor will increase the smoke temperature and concentration of CO in the stairwell, and reduce the height and visibility of the smoke layer; the automatic fire extinguishing system effectively suppresses the increase in the temperature of the fire smoke and the sedimentation of the smoke layer. Reasonable setting and operation of the automatic fire extinguishing system could effectively inhibit the spread of fire. Although closing fire corridor can slow down the direct upward spread of smoke through the corridor, it will force the fire smoke into the stairwell, which will seriously affect evacuation through the stairs. Therefore, in order to reduce risks, it is forbidden to close the fire doors of the firefighting corridor and stacking combustible materials in the corridor, Also, intensifying inspections and ensuring the normal operation of the automatic fire extinguishing system are indispensable. Based on the research results, the significance of installing fire-fighting facilities in the construction of high-rise apartments was discussed and proved.

Algorithm of adaptive edge enhancement to improve image visibility at mobile phone camera (모바일 폰 카메라의 이미지 선명도 향상을 위한 적응적 윤곽선 강조 알고리즘)

  • Kim, Kyung-Rin;Choi, Won-Tae;Kang, Bong-Soon
    • Journal of the Institute of Convergence Signal Processing
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    • v.9 no.4
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    • pp.288-294
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    • 2008
  • In this paper, we proposed an algorithm of edge enhancement to improve image visibility of mobile phone camera. For naturally edge enhancement, we grasps edge characteristic in image and applied to the most appropriate enhancement value adaptively about each characteristics. Namely, It applies 2D high pass filter where in the edge characteristics which judge in the first In compliance with the edge condition which is subdivided more with secondary it will be able to apply the process which able to adaptive edge enhancement to improve image visibility. It joins in and it is an existing algorithm that simply a lies 2D high pass filter where and it is identical in the image whole it will be able to improve the side effects of ringing actual condition etc. It considers the effectiveness of the hardware resource with the hardware of the algorithm which is developed and algorithm the maximum simply, it developed and simulation of the algorithm which is proposed it led and algorithm of existing and it compared and is improved the result which it confirmed.

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Estimation of Validity for Item Selecting of Landscape Impact Assessment (경관영향평가 항목선정을 위한 타당성 평가)

  • Oh, Myung-Sung;Cho, Hyun-Ju;Lee, Hyun-Taek;Ra, Jung-Hwa
    • Current Research on Agriculture and Life Sciences
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    • v.26
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    • pp.7-15
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    • 2008
  • This research is significant in terms of estimating the validity by setting evaluation items in view of integrating not only original beauty and visual areas but also natural ecological areas based on questionnaire. The results are as follows. 1) According to literature study, 17 items such as variety, the character of sites in terms of landscape, the beauty of landscape, visibility, and ratio of green visibility are selected. Also, 21 items such as variety of animals and plants species, size of green area, and ecological naturalness are selected in the area of landscape ecological resources. 2) As a result of questionnaire of the group of landscape experts, animals and plants ecological areas show 5.6341, the highest in importance analysis according to assessment areas. Also, as a result of importance analysis on items in each area, for example, in the area of visual resources, the item of skyline analysis is 6.0488, the highest. 3) As a result of corelation of item meaning on landscape effect assesment, for example, meaningness of psychological assessment item and landscape site item indicate 0.710, the highest coefficient correlation. 4) As critical assessment items per unit project, items such as damage minimization of original land features for project in terms of point, ratio of green visibility, variety of animals and plants species marked above 8.0 as high important medium. The project in terms of line, minimization of original land features, preservation of worthy biotope showed high point and the character of sites in terms of landscape, minimization of original land features, the size of green area, and analysis of skyline marked above 8.5 as high importance points. On the contrary, items for climate and soil showed relatively low points.

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A Study on Development of Publicness Evaluation Index of Indoor Privately Owned Public Space Using Space Syntax - Focused on New York City Indoor Privately Owned Public Spaces - (공간구문론을 활용한 실내공개공지 공공성 평가지표 개발 연구 - 뉴욕시 실내공개공지를 중심으로 -)

  • Kim, Jung Woo;Choi, Jaepil
    • Journal of the Architectural Institute of Korea Planning & Design
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    • v.36 no.4
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    • pp.83-92
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    • 2020
  • The purpose of this study is to develop a publicness evaluation index for indoor privately owned public spaces (POPS). In order to develop the index, 10 cases of indoor POPS in New York City were analyzed using Visibility Graph Analysis by evaluating its accessibility and visual openness. The results are as follows; (1) Accessibility and openness of indoor POPS were higher compared to other public spaces on the first floor. (2) Cases with high accessibility index installed a higher number of entrances. (3) Cases with high openness index were mostly composed of a glass wall. (4) The publicness index was high when the lobby and the indoor POPS are shared. (5) Atrium types were highly utilized and the evaluation index was also high whereas, linear types were less utilized and the evaluation index was lower.

Development of 3D CSGNSS/DR Integrated System for Precise Ground-Vehicle Trajectory Estimation (고정밀 차량 궤적 추정을 위한 3 차원 CSGNSS/DR 융합 시스템 개발)

  • Yoo, Sang-Hoon;Lim, Jeong-Min;Jeon, Jong-Hwa;Sung, Tae-Kyung
    • Journal of Institute of Control, Robotics and Systems
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    • v.22 no.11
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    • pp.967-976
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    • 2016
  • This paper presents a 3D carrier-smoothed GNSS/DR (Global Navigation Satellite System/Dead Reckoning) integrated system for precise ground-vehicle trajectory estimation. For precise DR navigation on sloping roads, the AHRS (Attitude Heading Reference System) methodology is employed. By combining the integrated carrier phase of GNSS and DR sensor measurements, a vehicle trajectory with an accuracy of less than 20cm is obtained even when cycle slip or change of visibility occur. In order to supplement the weak GNSS environment with DR successfully, the DR sensor is precisely compensated for using GNSS Doppler measurements when GNSS visibility is good. By integrating a multi-GNSS receiver with low-cost IMU, a precise 3D navigation system for land vehicles is proposed in this paper. For real-time implementation, a decoupled Kalman filter is employed in the integrated system. Through field experiments, the performance of the proposed system is verified in various road environments, including sloping roads, good-visibility areas, high multi-path areas, and under-ground parking areas.

How to Improve Hospital Satisfaction through Improvement of Hospital Bulletins - Through case study and patient satisfaction survey (병원 게시물 개선을 통한 병원 만족도 향상 방안 연구 - 실태 분석 및 환자 만족도 조사를 통하여)

  • Lee, Seung Ji;Kwon, Young Mi;Jeon, Su Yeon
    • Journal of The Korea Institute of Healthcare Architecture
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    • v.27 no.2
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    • pp.49-56
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    • 2021
  • Purpose: This study aims to provide a way to improve hospital satisfaction through improvement of hospital bulletins based on the analysis of the actual condition of hospital bulletins and satisfaction analysis for patients. Methods: First, a case study is conducted. After setting the analysis items based on previous studies and case study, a satisfaction survey is conducted on patients and statistical analysis is performed. Results: As a result of factor analysis, factors were classified into four categories: legibility, visibility, effectiveness, and frequency. As a result of the importance analysis through multiple regression analysis of four factors affecting hospital satisfaction, the importance of the "legibility" factor was the highest, followed by the "frequency", "effectiveness", and "visibility". As a result of the satisfaction analysis of the bulletins in the study site, the "visibility" factor was the highest, followed by "legibility", "effectiveness", and "frequency". Implications: In order to improve hospital satisfaction, the improvement of factors of high importance should be considered first. In other words, in hospital bulletins, legibility and frequency should be considered first. In addition, hospital satisfaction can be maximized by improving the level of factors and variables that are low in the satisfaction survey by factor.

The Relative Centrifugation Force Permits Visualization of the Germinal Vesicle in Pig Oocytes

  • Hsieh, Chang-Hsing;Lee, Stone;Jaw, Si-Ning;Tseng, Jung-Kai;Tang, Pin-Chi;Chang, Lan-Hwa;Ju, Jyh-Cherng
    • Asian-Australasian Journal of Animal Sciences
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    • v.17 no.9
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    • pp.1227-1231
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    • 2004
  • Pig oocytes contain high levels of lipids in the ooplasm, which reduces the visibility of the germinal vesicle (GV) under microscopic examination. Therefore, the purposes of this study were to investigate the effects of relative centrifugation force (RCF) on the visibility and maturation rates of the GV stage oocytes after centrifugation. In Experiment 1, cumulus-oocyte-complexes (COCs) were collected from slaughterhouse ovaries and randomly allocated to different RCFs (3,000 rpm: 970 g; 6,000 rpm: 3,900 g; or 10,000 rpm: 10,840 g) for 10 or 20 min. Percentages of visible GV were 76-79% in the oocytes centrifuged with 10,000 rpm, which were significantly higher (p<0.01) than those with 3,000 and 6,000 rpm. No significant differences in GV visibility were observed among oocytes with different lengths of centrifugation (p<0.05) regardless of the RCFs. In esperiment 2, the maturation rate of the oocyte was found significantly lower in the 20 min than in the 10 min group received 10,840 g of RCF (30 vs. 75%, p<0.05). In conclusion, the GV of porcine oocytes can be clearly visible by centrifugation at 10,840 g for 10 min without compromising their subsequent maturation rates and a longer centrifugation time (20 min) had no beneficial influence on the visibility of GV stage pig oocytes.

A Study on Data Management Systems for Spatial Assessments of Road Visibilities at Night (야간도로 시인성에 대한 공간적 평가를 위한 자료관리체계 연구)

  • Woo, Hee Sook;Kwon, Kwang Seok;Kim, Byung Guk;Yoon, Chun Joo;Kim, Young Rok
    • Journal of Korean Society for Geospatial Information Science
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    • v.22 no.4
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    • pp.107-115
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    • 2014
  • Visibility of the road influence the safe driving because it recognizes the obstacle on the road. In this paper, we propose a mobile data acquisition and processing system for evaluating road visibility at night. And it was converted efficiently with mobile images and archived for spatial analysis of road-visibilities at night. This was applied to the following techniques to the system. Low-power computing units, open an image processing library, GPU-based acceleration techniques and document database techniques, etc. And converting the RGB image to the YUV color system, which was integrated the brightness component and the spatial information. High performance Android devices were used to collect brightness data on roads and it was confirmed whether this prototype was to determine the spatial distribution of such acquisition and management systems for spatial-assessments of road visibility at night.