• Title/Summary/Keyword: Washing System

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A Study on the Characteristics of Modular Design Shown in Korean Traditional Clothing (한국 전통 의복에 나타난 모듈러 디자인 특성 연구)

  • Na, Yoo-Shin
    • Journal of Fashion Business
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    • v.23 no.1
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    • pp.49-63
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    • 2019
  • The purpose of this study is to examine the characteristics of modular design observed in Korean traditional clothing. Modular design, which is one of the noticeable characteristics of modern fashion design emerged in the 20th century. This study analyzed the Korean traditional culture to investigate the characteristics that show similarities to the modular system in design. A traditional Korean house is composed of small structures called 'chae'. A traditional Korean building is composed of a basic unit space called 'kan', and the rooms are divided and recombined. Korean traditional interior design shows furniture, bedding and art works that could be used, folded then stored. Korean cuisine is served in combination with small dishes. Korean letters are combined in square shaped form to make writing and printing easy. Korean traditional clothing has a way of washing where clothing are disassembled, washed and then re-stitched. The pattern pieces are made to be rectangular shaped so that the fabric pieces can be kept in shape during washing. The rectangular shaped pattern pieces can be replaced and reused after washing. Tops and bottoms could be interchanged for color-coordination, because the shapes of the clothing were standardized. These features exhibit modular system in Korean traditional clothing design. Modular system design has common characteristics which have basic modules, pursue practical purpose, have interchangeability adapted to circumstances, and could be disassembled and re-combined. Korean traditional clothing illustrates different ways of practicing modular system, but has some common features to contemporary modular fashion design.

Effect of washing methods on the quality of freshly cut sliced Deodeok (Codonopsis lanceolata) during storage (세척방법에 따른 신선편이 슬라이스 더덕의 저장 중 품질 특성 변화)

  • Choi, Duck-Joo;Lee, Yun-Jung;Kim, Youn-Kyeong;Kim, Mun-Ho;Choi, So-Rye;Cha, Hwan-Soo;Youn, Aye-Ree
    • Food Science and Preservation
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    • v.20 no.6
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    • pp.751-759
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    • 2013
  • There is increasing interest in freshly cut products, that is, foods produced without washing and cutting. In this study, the quality of freshly cut sliced Deodeok was compared with that of what based on its washing methods. In bubble washing, the Deodeok rises to the water surface apace and is broken into centimeter sizes. Microbubble washing calls for the production of a great number of 0.1 mm-sized bubbles in anions-bearing water and their passing through a trumpet-shaped hole at a high pressure. To compare the product deterioration rates of the specimens, they were stored at $10^{\circ}C$ for 10 days. In the specimens washed with the control method and with hand washing, the deterioration rate was 80%; and in the specimens washed with bubble and microbubble washing, 20~30%. The L-value (an index of browning) was higher in the bubble and microbubble washing than in the control and the hand washing, which implies that browning was minimized during the storage. As for the viable cell and coliform group counts that were measured during the storage, the specimens washed with the control method showed the highest values. In contrast, the specimens washed with microbubble washing showed the lowest values. In the sensory test, the specimens washed with microbubble were highest in storage preference. In conclusion, the Deodeok that was stored after it was washed with microbubble washing was found to have had the best quality.

Microfabrication of the ISFET Cartridge by empolying Nozzle system (노즐의 원리를 도입한 ISFET 소형 카트리지 제작)

  • Kim, Hyun-Soo;Lee, Young-Chul;Kim, Young-Jin;Cho, Byung-Woog;Sohn, Byung-Ki
    • Journal of Sensor Science and Technology
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    • v.8 no.4
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    • pp.320-326
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    • 1999
  • A small cartridge, with a nozzle system for washing off the dirt from the surfaces of sensing gates, was fabricated. The proposed nozzle structure was designed for cartridge by using the simulation tool of fluid (CFD-ACE). Whole size of the fabricated cartridge by using micromachining techniques is about $2.6\;cm{\times}1.5\;cm$, the size of the washing nozzle is $0.2\;mm{\times}0.6\;mm$ and its dead volume is only about $20\;{\mu}l$. A micro-reference electrode was achieved by employing a differential system with ISFETs/QRE (quasi-reference electrode)/REFET (reference field-effect transistor). Metal electrodes was deposited at both ends of blowing channel were used to check the presence of bubble in the microchannel. The pH-ISFET was inserted into the fabricated cartridge and the washing effect of the nozzle system in cartridge was invested.

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Development of a Pilot-Scale Soil Washing Process (파일롯 규모의 토양세척장치 개발)

  • 장윤영;신정엽;황경엽
    • Journal of Korea Soil Environment Society
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    • v.3 no.3
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    • pp.55-62
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    • 1998
  • Soils contaminated with hydrocarbons and residual metals can be effectively treated by soil washing. In developing the soil washing process several major effects for separating contaminants from coarse soils progressively improved upon combinations of mining and chemical processing approaches. The pilot-scale soils washing process consists of the four major parts : 1) abrasive scouring, 2) scrubbing action using a washwater that is sometimes augmented by surfactants or other agents, 3) rinsing, and 4) regenerating the contaminated washwater. The plant was designed based upon the treatment capacity > 5 ton/hr on site. The lumpy contaminated soil fractions first experience deagglomeration and desliming passing through a rolling mill pipe. In the second unit the attrition scrubbing module equipped with paddles uses high-energy to remove contaminants from the soils. And a final rinsing system is assembled to separate the washwater containing the contaminants and very fine soils from the washed coarse soils. For recycling the contaminated washwater passes through a washwater clarifier specifically designed for flocculation, sedimentation and gravity separation of fine as well as flotation and separation of oils from the washwater. In order to more rapidly assess the applicability of soil washing at a potential site while minimizing the expense of mobilization and operation, a mobile-type soil washing process which is self-contained upon a trailer will be further developed.

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A Study of the Salt Rejection from the Surface of Marine Waste using Ultra Fine Bubble (초미세기포를 이용한 해양쓰레기 표면 내 염분제거에 관한 연구)

  • Kim, Bo-Min;Kim, Kwang-Koo;Park, Chan-Gyu
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.22 no.6
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    • pp.11-18
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    • 2021
  • Nano bubble water is used in various washing processes, including cleaning of solar panels, salt rejection of roads, and cleaning precision parts of machines. High cleaning efficiency and water conservation are obtained by applying nano bubbles during pretreatment of the marine waste cleaning system. This study compared the salt rejection of nano bubble water, and it was revealed that marine waste was produced by wood immersed in 200,000 mg/L NaCl solution. Using tap water and nano bubble water for washing, comparisons of the surface salt concentrations of wood were determined according to the nozzle, orifice diameter, pump speed and washing time. Decreased surface salt concentration was observed on the wood surface with increasing washing time. Water consumption was optimal between 5- and 10-seconds washing time. Increasing orifice diameter of the nozzle reduced the spraying pressure, with consequent increase in the wood surface salt concentration, thereby establishing the importance of orifice diameter of the nozzle. Compared to levels obtained with tap water, salt concentration of the wood surface after washing with nano bubble water was 2.2% lower with sector nozzle, and 30.9% lower with circular nozzle. In the washing experiment using nano bubble water, the salt concentration on the wood surface was about 9.5 mg/L lower when washed with sector nozzle than the circular nozzle.

A Study on the Development of High Density Ozone Water Cleaning System for Herb Medicine (고농도 오존수를 이용한 한약재 세척기기에 대한 연구)

  • Kim, Jeong-Ho;Bang, Byeong-Hun;Lee, Sang-Hwa;Kim, Sung-Hee
    • Journal of Acupuncture Research
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    • v.29 no.2
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    • pp.9-14
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    • 2012
  • Objectives : This study was designed to evaluate the pesticide residue of herb medicine through high density ozone water cleaning system. Materials and Methods : We purchased ginseng(Panax ginseng) on market and sprayed pesticides (Diazinon) on ginseng. We analyzed pesticide residue according to washing methods(untreated, ozone water cleaning, ultrasonic cleaning, Water cleaning). As a result of each washing methods, in ozone water cleaning method pesticide residue was much less remained than in Ultrasonic Cleaning method and water cleaning method. Conclusions : High density ozone water cleaning is the best method for removing pesticides of herbal medicine.

The evaluation of vibration contribution about the eccentric rotor system by multiple dimensional spectral analysis (다차원 해석법을 이용한 편심 회전체의 전달 기여도 평가)

  • 조문갑;조용구;김동원;이정윤;오재응
    • Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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    • 2003.11a
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    • pp.298-303
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    • 2003
  • The eccentric rotor system has various problems by vibration of unbalance mass. Specially, it is difficult to analyze vibration problem for the drum washing machine due to correlation of transmission paths. We analyze the mechanical structure by multidimensional spectral density to identify the maximum vibration magnitude at the frequency domain. It estimates the coherence function of the signals to pass the transmission paths. In case of the drum washing machine, because the transmission paths are correlated partially it needs to determinate the priority ranking. And the correlated parts are eliminated using conditioned spectral density function. Finally the shielding effect method confirms the reasonability of the modeling.

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Survey on Consumer's Cognition for Management of Clothing Products (의류제품에 대한 소비자의 인식과 취급실태)

  • Kim, Yang-Weon;Lee, Hae-Young;Lee, Eun-Kyung
    • Korean Journal of Human Ecology
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    • v.6 no.2
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    • pp.115-120
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    • 1997
  • To investigate the cognition of labeling system and its problems, problems in laundry, and consumer's dissatisfaction and to decrease problems in management of clothing products, total 476 subjects were surveyed in Taejon. The major results were as follows ; 1. The cognition of labeling system was understood by 93.1% of respondents, and 72.9% of them prefer to recognized labeling by figures and letters than by either of them. Most of respondents got the knowledge of labeling system from school. The most frequently experienced mislabeling was the label for management. 2. In cleaning, 60.4% of respondents made their decisions of the laundry method after seeing labeling system. When the label recommanded either of hand washing or dry cleaning, they usually laundered with hand washing after a few times of dry cleaning. The first consideration factor for laundry was fiber composition of textiles. 3. About 70% of respondents understood ironing, laundry, and drying mark on labeling system, and 53.8% understood fiber composition and bleaching. 4. More than 90% of respondents experienced dissatisfaction in handling clothing products. The reason of dissatisfaction was deformation and decoloring after laundry. Most of respondents experienced change of tactile sensation, too.

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