• Title/Summary/Keyword: paper cups

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Studies on Compression Strength of Paper Cups for Recycling (재활용을 위한 종이컵의 압축강도 연구)

  • Ahn, Byoung-Kuk
    • KOREAN JOURNAL OF PACKAGING SCIENCE & TECHNOLOGY
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    • v.7 no.2
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    • pp.39-42
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    • 2001
  • This study was carried out to research on the compression strength of paper cups and to investigate the possibility to recycle them as pallet blocks. The compression strength of paper cups was increased with the increase of the number of them showing the value between 0.5 and $5.9kg/cm^2$. The compression strength of the pallets using paper cups as the blocks was increased with the increase of the number of paper cups per block. Especially, the compression strength of the pallet with ten paper cups per block showed the value above 1000kg.

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A behavioral approach to increase recycling behavior: An examinination of effect of environmental alteration and prompts (환경문제에서의 재활용 행동 증진을 위한 행동분석적 실험 연구 - 환경적 변화와 프롬트의 효과를 중심으로-)

  • 오세진;양병화;현보성;황혜연
    • Hwankyungkyoyuk
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    • v.14 no.1
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    • pp.19-31
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    • 2001
  • This study examined the effect of environmental alteration and prompts on recycling behavior. An A-B-BC with a control condition design was employed. Subjects in this study were college students, professors, and employees at a university building. After a baseline phase, environmental alteration was I effect in the next phase and both environmental alteration and prompts were in effect in the final phase for the control condition. The environmental alteration consisted of providing four separation containers for the paper cups, cans recyclable paper, and the disposable on each floor in the building. The prompts consisted of providing the information about the importance of environmental preservation and how to separate the materials in the appropriate containers using an information board and pamphlets. The dependent variables were (1) the number of cans collected in can container, (2) the number of paper cups collected in cup container, (3) the rate of correct separation of cans, (4) the rate of correct separation of paper cups, and (5) the weight of disposable. The rates of correct separations of cans and paper cups were obtained by calculating the percentage of thenumber of recyclable cans and paper cups in the corresponding containers. The results indicated that environmental alteration had positive effects on all the dependent variables. Also, when the prompts were added to the environmental alteration, the incremental effect of the prompts was demonstrated. The implications and limitations of theses findings were discussed and the direction of future studies was also proposed.

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A Study on the Nautilus Cup from the Silla Period Excavated from Hwangnamdaechong Tomb in Gyeongju (경주 황남대총 남분 출토 신라 앵무배)

  • Kim, Jongwoo
    • Conservation Science in Museum
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    • v.22
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    • pp.1-14
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    • 2019
  • The excavation of the south mound of Hwangnamdaechong Tomb in Gyeongju has yielded diverse types of shell artifacts. Among the them, this paper investigated fragments of shell ornaments with gilt-bronze frames, the use of which has not been identified. It was revealed that the artifacts are in fact nautilus cups, which had never been found previously in excavations in Korea. A nautilus is a species marine mollusk known to be the closest to prehistoric ammonites. It has brown stripes on the surface of the shell and septa inside, and a siphuncle penetrating to the center of the septa. It is known that nautilus cups were made and used in China, but only three examples have thus far been identified. These surviving cups have metal ornaments and are dated to the Western and Eastern Jin periods of China. No nautilus cups have been found in Japan, and the shell ornaments investigated in this study were determined to be the first nautilus cups ever found in Korea. Nautilus cups are mentioned in ancient documents and literature, including in poems by the Tang Dynasty poet Li Bai and in Joseon-period documents. This paper presents the biological characteristics of nautili, cases of excavation of nautilus cups outside Korea, and findings from the basic research of the nautilus cup from Hwangnamdaechong Tomb.

″Drifting Cups on a Meandering Stream″ in China

  • Wei, Qing-Ding;Jia, Cong-Xian;Guang Chen
    • Journal of Mechanical Science and Technology
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    • v.15 no.12
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    • pp.1757-1761
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    • 2001
  • "Drifting cups on a meandering stream" is a same originating from the ancient China. It takes advantage of the stopover of the cup at the different positions on a meandering stream to choose a person sitting on the bank to participate the game. In this paper, a model is devised to make the cups move around or stop at some place on the stream as required by the game. A typical flow field Is abstracted and studied using the PIV technique and the topological analysis. Some motions of the cup on the stream have been explained in the mechanics theory.

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Determination of Initial Billet Shape to Improve Dimensional Accuracy in Backward Extruded Cups (후방압출공정에서 치수정밀도 향상을 위한 초기소재형상 결정)

  • Kim, H.C.;Kim, T.H.;Park, J.C.
    • Journal of the Korean Society for Precision Engineering
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    • v.14 no.2
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    • pp.129-135
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    • 1997
  • Experimental studies have been carried out to obtain uniform cups by one operation of backward extrusion. A lot of factors on dimensional accuracy of backward extruded cups are billet material, billet shape, punch shape, punch velocity, geometry of tool, tool material, and lubrication etc. In manufacturing cup-shaped parts by backward extrusion, it is very important to design the initial billet shape or the preform. The objective of this paper is to find that the shape of the initial billet is related to dimensional accuracy and also to manufacture the more accurate product simultaneously reducing the loss of material as forming the shape of the initial billet by means of upsetting.

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An analytical study on the Youngjeob Dogam Sajechong Euigwae of Choson Dynasty(1609 year)

  • 김상보;이성우
    • Journal of the East Asian Society of Dietary Life
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    • v.2 no.2
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    • pp.201-220
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    • 1992
  • To analyze royal nad Chinese envoy procession, and sacrificial rite of Chinese envoy for Choson Dynasty, the author studied historic book-Youngjeob Dogam Sajechong Euigwae of Choson Dynasty(1609 year) in which Chinese envoy procession for sacrificial rite in Choson Dynasty were described. The results obtained from this study were as follows. 1. Sacrificial rite of Chinese envoy for Choson Dynasty were Yellow paper burning and performing a sacrificial rite of chinese envoy. 2. Order of Chinese envoy procession for Yellow paper burng and performint a sacrificial rite of Chinese envoy, was civil and military officers, flag procession, drum, palanquin of incense, palanquin of guneral oration, palaquin of material for guneral expenses, palanquin of rich viands and sumptuous fare and Chinese envoy. 3. Things offered in sacrifice of Yellow paper burning were fried cake made of wheat flour, honey and oil, fried gutinous rice cake, patterned savory cake, fruits, meat fish and others broil, slices of boiled beef, soup, stew, noodles, 3cups of alcohol, rice cake and water. 4. Things offered in sacrifice of performing a sacrificial rite of Chinese envoy were a cattle, a hog, a sheep, 3 cups of alcohol and etc.

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Development of Program for Designing Barrel Cam of Machine Making Paper Cups (종이컵 성형기용 배럴 캠 설계 프로그램 개발)

  • Kim, Wook-Hyeon;Park, Tae-Won
    • Transactions of the Korean Society of Mechanical Engineers A
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    • v.35 no.4
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    • pp.433-438
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    • 2011
  • A machine that makes paper cups has many parts, including a barrel cam, an index, and a turret. When the barrel cam, which is the main operating part of the machine, rotates, it pushes the roller fixed on the index, and paper cups are formed as the turret connected to the index rotates. Therefore, the performance of the machine is affected by the barrel cam. In this study, the program for designing barrel cam, which creates the profile of the cam is developed using MATLAB. This profile is used to develop a 3D CAD model by using a 3D CAD program. Dynamic models containing the barrel cam are created on the basis of the profile and 3D laser scan of the barrel cam. Further, the rotation angle of the index in the machine is measured using a high-speed camera. The rotation angles of the dynamics models are compared to verify the effectiveness of the program.

Eco-Friendly Behavior of the Disposable Cup Deposit System: Focusing on Shadow Work, Perceived Efficacy, Environmental Consciousness, and Eco-guilt (일회용 컵 보증금 제도의 친환경행동: 그림자노동, 지각된 효능감, 환경의식, 에코 죄책감을 중심으로)

  • Zheng Yizhe;Joon Koh
    • Journal of Information Technology Services
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    • v.22 no.5
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    • pp.31-49
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    • 2023
  • Due to the outbreak of the COVID-19, self-service technology is widely used in Korea, and demand for disposable cups is increasing significantly. Waste and recycling of disposable cups have become a social concern for Koreans and Korea implemented the "Disposable Cup Deposit Systems" again in December 2022. Whether the emergence of this system can change the way people behave in environmental protection is a question to be examined in this study. Companies participating in the disposable cup deposit system are hoping that customers will actively recover cups through self-service in the process of collecting disposable cups. The government, along with businesses, transfers recovery work to customers through self-service technologies and schemes. Due to the increase in Shadow Work and the strengthening of consumer environmental protection consciousness, this paper focuses on how unmanned service types such as self-service technology can affect people's environmental protection behavior. An empirical analysis with 477 samples examined how the characteristics of shadow work, perceived efficacy, environmental awareness, and ecological guilt affect user's environmental protection behavior. Perceived efficacy that acts as a mediator and ecological guilt that plays as a moderator are investigated. Although there have been many studies on the effects of shadow work on customer behavioral intentions before, it has been very rare to study the effects of shadow work perceived by people on environmental behavioral intentions from an environmental protection perspective. This study shows that the higher the perceived efficacy of consumers, the more people prefer self-service technology and the stronger the environmental protection behavior. Also, consumers' ecological guilt significantly moderates the relationship between environmental consciousness and eco-friendly behavior. It is expected that companies and governments will be able to understand the impact of shadow work on consumers' environmental protection behavior and further promote environmental protection by appropriate policies and marketing strategies.