• Proceedings of the Korean Society of Precision Engineering Conference
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• 1992.10a
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• pp.131-135
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• 1992

랩핑은 가공물의 치수정도와 다듬질면 정도의 향상을 위해 최종적으로 사용되는 가공법이다. 랩제(abrasive)로 서는 다이아몬드, SiC, 그리고 $Al_{2}$ $O_{3}$ 등이 사용되며 공작액과 혼합되어 가공물과 랩핑 블럭 사이에 끼이어 연삭작용을 하게 된다. 본 연구에서는 중요 가공변수등이 가공면 거칠기와 가공율에 미치는 영향을 실험측정하였고, 그 실험결과를 세라믹 랩핑가공의 기본적 연삭작용 기구인 취성파괴.현상을 기초로 하여 설명하였다.

• Proceedings of the Korea Information Processing Society Conference
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• 2002.04a
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• pp.465-468
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• 2002

웹 중심의 인터넷 환경은 개인의 정보 처리 뿐 아니라 기업간의 업무 전개를 위한 핵심 기술로 발전해 나가고 있다. 하지만, 조직의 중요한 지식과 프로세스들을 처리하는 시스템들은 대부분 과거(Legacy)의 기술에 의해 개발되어졌으며, 이러한 시스템들은 웹 환경을 위한 분산 아키텍쳐의 결여와 개방성과 표준화 미흡으로 시스템의 유지보수에 많은 어려움을 가진다. 따라서 재사용성이 높은 레가시 시스템들을 현대적인 기술 요구를 수용하여 향상된 비즈니스 처리가 가능한 새로운 시스템으로 재공학함은 필수적인 일로 여겨진다. 따라서 본 논문에서는 COBOL 레가시 프로그램을 대상으로 컴포넌트 랩핑을 위한 설계 패턴의 적용을 통해 컴포넌트 환경으로의 재공학 방법을 제시한다. 이를 위해 COBOL 프로그램에서 비즈니스 로직 추출을 위한 절차와 방법을 설명하고, 그 결과 생성된 클래스들을 패키징하고 랩핑하기 위해 보편적인 양식으로 이용할 수 있는 재공학 설계 패턴을 나열하고 실 예에 Facade 패턴을 적용한다.

• Food Science and Preservation
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• v.24 no.2
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• pp.159-167
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• 2017

This study was investigated the effects of maintaining the freshness and stabilization of supply and demand for lettuce (Lactuca sativa L.) by packaging methods in summer. Post-harvest lettuces were packaged by corrugated box, polypropylene (P) box, and individual wrapping using polyvinyl chloride (PVC) film. Then, the lettuce samples were stored at $2^{\circ}C$ and evaluated the change of quality during storage. The lettuces wrapped individually with PVC film had lower weight loss rate, color change, and browning index compared to lettuces packaged by corrugated box and P box. The SPAD value and hardness were higher in lettuces wrapped individually with PVC film than other packaging methods. The lettuces wrapped individually with PVC film were showed the highest total phenolic contents and DPPH radical scavenging activity, but there were no significantly differences by packaging methods. The lettuces packaged by corrugated box were showed the inside browning after 14 days. However, the lettuces wrapped individually with PVC film were showed the best appearance. Therefore, the packaging method of wrapped individually with PVC film were effective in maintaining the freshness during 21 days and helpful for the stabilization of supply and demand for lettuce in summer.

• Journal of The Korean Society of Grassland and Forage Science
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• v.43 no.1
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• pp.62-66
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• 2023

The objective of the present study was to evaluate the effect of storage type and period on the quality of rye hay. The rye "Gogu" was sown on October 15, 2020, and harvested on April 22, 2021 (heading stage). The rye hay was prepared in two wrapping conditions (wrapping and unwrapping) and two storage period (3 and 6 months). In regards to their visual appearance, the forage quality score was higher in wrapped rye hay than in unwrapped rye hay. In all groups, there was no difference in appearance between inside and outside. The moisture content of wrapped rye hay was maintained at the initial level until 6 months. However, the moisture content of unwrapped rye hay was increased at 3 months of storage, and then decreased at 6 months of storage. Crude protein content was higher in wrapped rye hay than in unwrapped rye hay, whereas NDF and ADF contents were lower within wrapped rye hay than within unwrapped rye hay (p<0.05). In conclusion, wrapping rye is effective method for long-term storage that reduces the effect of external environment.

• Monthly Korean Chicken
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• v.15 no.9
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• pp.61-61
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• 2009

• Journal of KIISE:Computing Practices and Letters
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• v.13 no.7
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• pp.499-507
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• 2007

In the areas of CAE, CAD and CAO integration & automation technology, the word 'File Wrapping' means a virtualization of TEXT files that supports variables-based I/Os like variable assignments in programming languages. This File Wrapping process is one of the cornerstones of CAE, CAD and GAO integration & automation, and the performance of File Wrapping process, which is depending on the sire of a TEXT file to be accessed and the number of regions and their distribution, has a critical effect on the total performance of the CAE, CAD and CAO integration & automation systems. In this paper, we define TEXT File Region Management which generalizes the main functions of the File Wrapping process, and describe a prototype of TEXT file Region Management which is implemented as a Grid service. After that, the validity of the proposed model and the TEXT File Region Management service are discussed with evaluation results of the prototype.

• Proceedings of the Korean Society for Agricultural Machinery Conference
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• 1997.12a
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• pp.74-80
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• 1997

• 베이커리
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• no.8 s.457
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• pp.117-122
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• 2006

선물 포장에서 리본은 케이크 위를 장식하는 데코레이션과 같다. 밋밋한 제품에 생기를 주고 포인트가 되는, 없어선 안 될 보물이 바로 리본이다. 이번 랩핑스쿨에서는 한 번 알아두면 언제라도 밋밋한 포장을 확 바꿔줄 수 있는 기본 보우(bow)와 타이(Tie)만드는 법을 차근차근 배워본다.

• Journal of the Institute of Electronics Engineers of Korea SD
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• v.42 no.6 s.336
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• pp.31-38
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• 2005

In this paper, we proposed an optical security system based on a gray-image exclusive-OR encryption using multi-phase separation and phase-wrapping method. For encryption, a gray image is sliced into binary images, which have the same pixel value, and these images are encrypted by modified XOR rules with binary random images. The XORed images and the binary images respectively combined and converted into full phase images, called an encrypted image and a key image. For decryption, when the encrypted image and key image are used as inputs on optical elements, Practically due to limited controllability of phase range in optical elements, the original gray image cannot be efficiently reconstructed by these optical elements. Therefore, by decreasing the phase ranges of the encrypted image and key image using a phase-wrapping method and separating these images into low-level phase images using multi-phase separation, the gray image can be reconstructed by optical elements which have limited control range. The decrytion process is simply implemented by interfering a multiplication result of encrypted image and key image with reference light. The validity of proposed scheme is verified and the effects, which are caused by phase limitation in decryption process, is analyzed by using computer simulations.

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2011.06a
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• pp.263-264
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• 2011