• Title/Summary/Keyword: Painting process

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A Study on the Creating and Prosperity Process of the Siheyuan in China (중국 사합원의 생성과 발전과정에 관한 연구)

  • Choi, Jang-Soon
    • Journal of the Korean Institute of Rural Architecture
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    • v.7 no.1
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    • pp.112-120
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    • 2005
  • The object of this study is one of the traditional houses about Siheyuan(courtyard house) which is one of the most remarkable types of dwelling in China. The purpose of this paper is to examine and analyse the formation process of the Siheyuan. Its organizational formation process are based on historical and natural-geographical background. With the passage of time this house developed into one of the Chinese house style. The technique of Siheyuan's spatial composition goes so far back in the New Stone Age. The relics of this are the colony layout, the system of four sides, the layout type of a palace, the picture of lacquered ware, the picture of brick, the earthenware of house type, the painting of cave, the paintings of painters and others.

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A technical study on mold of productivity improvement for Insert Injection of Reverse Engineering (리버스 엔지니어링을 통한 인서트 사출의 생산성향상을 위한 금형기술연구)

  • Lee, S.Y.;Kim, Y.G.;Woo, C.K.;Kim, O.R.
    • Proceedings of the Korean Society for Technology of Plasticity Conference
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    • 2008.05a
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    • pp.535-538
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    • 2008
  • Insert-injection molding can inject two different materials or two colors in the same mold and process. If this injection process use, product has ability because the base part maintain strength and specified part can inject soft-material. It makes the cost down by single operation automatically for saving wages. In this paper, we designed double-injection mold for automobile remote control to inject secondary using this part as insert after inject external appearance of product. CAE analysis was progressed gate location and runner size as variable and analysis result is reflected in mold design process. As a result, it could solved badness that is generated at the conventional mold. Additionally, cost is downed by reducing loss of runner as well as could omit painting process because surface of finished product is improved through new mold.

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Analysis Framework using Process Mining for Block Movement Process in Shipyards (조선 산업에서 프로세스 마이닝을 이용한 블록 이동 프로세스 분석 프레임워크 개발)

  • Lee, Dongha;Bae, Hyerim
    • Journal of Korean Institute of Industrial Engineers
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    • v.39 no.6
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    • pp.577-586
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    • 2013
  • In a shipyard, it is hard to predict block movement due to the uncertainty caused during the long period of shipbuilding operations. For this reason, block movement is rarely scheduled, while main operations such as assembly, outfitting and painting are scheduled properly. Nonetheless, the high operating costs of block movement compel task managers to attempt its management. To resolve this dilemma, this paper proposes a new block movement analysis framework consisting of the following operations: understanding the entire process, log clustering to obtain manageable processes, discovering the process model and detecting exceptional processes. The proposed framework applies fuzzy mining and trace clustering among the process mining technologies to find main process and define process models easily. We also propose additional methodologies including adjustment of the semantic expression level for process instances to obtain an interpretable process model, definition of each cluster's process model, detection of exceptional processes, and others. The effectiveness of the proposed framework was verified in a case study using real-world event logs generated from the Block Process Monitoring System (BPMS).

Image sensed process controller for automatic paint spray systems (영상 검출에 의한 자동도포장치의 프로세서제어기)

  • 이상훈;유희삼;강준길
    • 제어로봇시스템학회:학술대회논문집
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    • 1986.10a
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    • pp.188-190
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    • 1986
  • In this paper, we describe an optical detection at the front and design an on-off control system of spray gun for economical paint spray when painted on hanger any things that it have arbitrary two-dimensional image. The objectives of this paper that, as changing of software, find useful logic variation of spray, and are to enhance of environments for workman and to decrease economical loss of painting.

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Robot Motion Regeneration based on Independent Arm Control System Design Method

  • Tran, Manh-Son;Han, Kyu-Il;Kim, Young-Bok
    • Journal of Power System Engineering
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    • v.21 no.1
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    • pp.30-36
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    • 2017
  • In robot industries, the request to obtain a high efficiency and accurately controlled electric actuator has been growing. Nevertheless, the effectiveness of electric actuators is significantly affected by the presence of factors such as nonlinearity, uncertain disturbance and unknown dynamics. Therefore, it makes difficult to derive an exact mathematical model of the controlled system. In this paper, a new method for easily recognizing and regenerating robot motions used in small size industries such as painting and welding parts is proposed. Instead of modeling the entire dynamic motion of the robot system, this method is based on the procedure of modeling and controller design for every arm individually. The proposed method does not require complex model and control system such that it gives easy working process to the small size industries. Based on this fact, in this research, the model and PID controller for every arm of the 3 DOF robot system are obtained separately. Some experimental results are implemented to validate the effectiveness of the proposed method.

A Study on Effect of Coating Stain on the Performance of Electric Cable (도장 오염이 Electric Cable의 성능에 미치는 영향 연구)

  • Cho, Yeon-Ho;Lee, Sang-Hyeok;Son, Young-Shuk
    • Special Issue of the Society of Naval Architects of Korea
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    • 2009.09a
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    • pp.18-23
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    • 2009
  • After the installation of electric cables at block, PE(pre-erection) and hull stages, the coating stains on the electric cable sheath were unavoidably occurred by additional painting process. According to class rules paint or coating applied on the electric cables shall not adversely affect the mechanical, chemical of fire resistant characteristics of the electric cable sheath. However, there has not been quantitatively studied about the effect of coating stains on properties of sheath materials. In this study, we tried to investigate the effect of coating stains on the performance and deterioration of sheath materials by using FTIR, SEM analysis, flame retardant, high potential voltage and tensile test. The results sowed that coating stains, which were occurred during painting work on site could not adversely affect on the performance and deterioration of sheath materials.

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Spray Characteristics on the Electrostatic Rotating Bell Applicator

  • Im, Kyoung-Su;Lai, Ming-Chia;Yoon, Suck-Ju
    • Journal of Mechanical Science and Technology
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    • v.17 no.12
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    • pp.2053-2065
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    • 2003
  • The current trend in automotive finishing industry is to use more electrostatic rotating bell (ESRB) need space to their higher transfer efficiency. The flow physics related with the transfer efficiency is strongly influenced by operating parameters. In order to improve their high transfer efficiency without compromising the coating quality, a better understanding is necessary to the ESRB application of metallic basecoat painting for the automobile exterior. This paper presents the results from experimental investigation of the ESRB spray to apply water-borne painting. The visualization, the droplet size, and velocity measurements of the spray flow were conducted under the operating conditions such as liquid flow rate, shaping airflow rate, bell rotational speed, and electrostatic voltage setting. The optical techniques used in here were a microscopic and light sheet visualization by a copper vapor laser, and a phase Doppler particle analyzer (PDPA) system. Water was used as paint surrogate for simplicity. The results show that the bell rotating speed is the most important influencing parameter for atomization processes. Liquid flow rate and shaping airflow rate significantly influence the spray structure. Based on the microscopic visualization, the atomization process occurs in ligament breakup mode, which is one of three atomization modes in rotating atomizer. In the spray transport zone, droplets tend to distribute according to size with the larger drops on the outer periphery of spray. In addition, the results of present study provide detailed information on the paint spray structure and transfer processes.

The Influence of Color Autonomy in Matisse Paintings on Modern Fashion Design (마티스 회화의 색채 자율성이 현대 패션디자인에 미친 영향)

  • 이은경
    • Journal of the Korean Society of Costume
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    • v.51 no.5
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    • pp.147-156
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    • 2001
  • The painting style has much influenced on the creativity of design in the developmental process of modern fashion. This fact tells that pure art and fashion design have the same purpose in the end. In this paper. the color Autonomy of Matisse was analyzed and how its result influences on modern fashion design was investigated. Matisse is, in fact. the leader of Fauvism and the painter who brought the Fauvism painting to its perfection in the purest state. Matisse achieved the revolution of new color with only the color in expressing formative factor. Matisse's color autonomy are fusion technique, flatness, decoration, simplicity, etc. To sum up the influence that this autonomy played on modern fashion design, intensive pure color expression, strongly-supplemented color effect among primary colors, decoration of color, simplicity of color, that is to say. he gave rise to the revolution of color, Many modern designers are applying this method to the theme of fashion and motive, color the technique of expression. Thanks to this. the new formative artistic expression could be adapted in fashion, and it also induced the inspiration of original design, with great contribution to bringing the era of its own distinct individualism in modern times.

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Assessment of total is ocyanates by OSHA and NIOSH analytical methods : accuracy and precision and airborne concentrations by process (NIOSH와 OSHA 측정 방법을 이용한 이소시아네이트류 발생 공정별 농도 분포 평가)

  • Kang, Hyoung Kyoung;Kim, Hyunwook
    • Journal of Korean Society of Occupational and Environmental Hygiene
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    • v.9 no.2
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    • pp.1-18
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    • 1999
  • The purpose of this study was to compare performances of two analytical methods, the OSHA 42 and the NIOSH 5522, of quantifying total isocyanates in air. These methods were compared in terms of accuracy and precision and the detection limits using four(4) spiked samples in each of four(4) concentration levels which ranged from 0.25 to 2.0 times of the ACGIH TLV-TWA. In addition, two methods were used to as sess airborne concentrations of total isocyanates at the following processes including autobody spray painting, furniture spray painting, polyurethane foaming, urethane adhesion, UV coating, and pigment mixing. The results of this study showed that the NIOSH 5522 method was better than the OSHA 42 method in terms of accuracy, precis ion, and detection limit for quantifying airborne total isocyanates. It was also clear that the NIOSH method was capable of detecting not only monomeric but also non-monomeric isocyanates. The results of air concentrations of total isocyanates among processes studied indicate that some processes may exceed the recommended level of isocyanates. In addition, to evaluate toxicological effects of total isocyanates, it is recommended to consider additive effects of isocyanates present in mixtures.

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A Study on the Background and Characteristics of Textile Wallcovering in Flemish Painting (플랑드르 회화에 표현된 벽걸이 직물의 발달 배경과 특징에 관한 연구)

  • Lee, Joonhan;Kim, Sun Mee
    • Journal of Fashion Business
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    • v.24 no.4
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    • pp.19-29
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    • 2020
  • The purpose of this study was to investigate Renaissance wall-covering fabrics through Flemish paintings, that provides the details of the origin and development of background of modern wallcovering. The methods of the study are as follows. First, the background of textile development of Flanders in the 14th to 16th centuries were examined through a prior study. Second, the shape and use of wallcoverings in paintings painted during that time were analyzed and the process of changing to modern forms was studied. The residential environment with many stone buildings in relatively humid and cold weather created a need for decorative fabrics. Back then, the wool and flax fabric were not allowed to be worn on the body, so the materials were used for the development of interior fabrics. The characteristics of wall covering in Flemish paint can be summarized with movable, allegory, and decoration. Movable stems from the arrival of the emerging aristocrats of Flanders, who had enormous commercial trade and carried decorative fabrics; the mobility has become an allegory in reality as the royal and aristocratic use of wall-decorated fabrics is the symbol of authority. In addition, unlike Italy, where silk was procured from the East, fabrics manufactured using flax and wool were not suitable for clothing in terms of religion and practicality and were used to decorate walls.