• 한국전산유체공학회:학술대회논문집
• /
• 2010.05a
• /
• pp.109-114
• /
• 2010

Interface tracking of two phase is significant to analyze multi-phase phenomena. The VOF(Volume of Fluid) and level set are well known interface tracking method. However, they have limitations to solve compressible flow and incompressible flow at the same time. CIP(Cubic Interpolate Propagation) method is appropriate for considering compressible and incompressible flow at once by solving the governing equation which is divided up into advection and non-advection term. In this article, we analyze the droplet impingement according to various We number using improved CIP method which treats nonlinear term once more comparison with original CIP method. Furthermore, we compare spread radius after droplet impingement on the wall with the experimental data and original CIP original CIP method, and it reduces the mass conservation error which is generated in the numerical analysis comparison with original CIP method.

• Journal of the Korean Society for Library and Information Science
• /
• v.35 no.2
• /
• pp.59-74
• /
• 2001

This study investigates the background, history and current status of CIP : its needs and effects and suggestions for introducing it in Korean library situation. And it recommends the basic concepts and a model for Korean libraries, and analyzes the related issues, both those in policy and budgets and those in operations and processing.

• Elastomers and Composites
• /
• v.51 no.2
• /
• pp.113-121
• /
• 2016

Magneto-rheological elastomer (MRE) is a material which shows reversible and various modulus under magnetic field. Comparing to conventional rubber vibration isolator, MREs are able to absorb broader frequency range of vibration. These characteristic phenomena result from the orientation of magnetic particle (i.e., chain-like formation) in rubber matrix. In this study, silicone rubber was used as a matrix of MREs. Carbonyl iron particle (CIP) was used to give magnetic field reactive modulus of MRE. The surface of the CIP was modified with chemical reactants such as silane coupling agent and poly(glycidyl methacrylate), to improve interfacial adhesion between matrix and CIP. The mechanical properties of MREs were measured without the application of magnetic field. The results showed that the tensile strength was decreased while the hardness was increased with the addition of CIP. Also, surface modification of CIP resulted in the improvement of physical properties of MRE, but the degree of orientation of CIP became decreased. The analysis of MR effect was carried out using electromagnetic equipment with various magnetic flux. As the addition of CIP and magnetic flux increased, increment of MR effect was observed. Even though the surface modification of CIP gave positive effect on the mechanical properties of MRE, MR effect was decreased with the surface modification of CIP due to decrease of CIP orientation. Throughout this study, it was found that the loading amounts of CIP affected the mechanical properties of MRE, and surface property of CIP was an important factor on MR effect of MRE.

• Journal of the Korean BIBLIA Society for library and Information Science
• /
• v.20 no.2
• /
• pp.5-15
• /
• 2009

This study attempts to compare the National Library of Korea (NLK)'s cataloging in publication(CIP) records with their permanent records in the National Library of Korea(NLK)'s online public access catalogue(OPAC) database. This study compares the description of records in the NLK CIP versus NLK OPAC in terms of similarities and differences in the bibliographic elements for each record. The study selected the NLK's CIP records from November to December 2008, allowing to publish the registered CIP titles and also the NLK to make the records avaliable in their OPAC database. The finding indicate that libraries that use NLK's CIP records in their copy cataloging activity should not rely 100 per cent on the records. Verifications and modifications need to be carried out to ensure accuracy and quality of their catalogue records.

• Journal of computational fluids engineering
• /
• v.15 no.4
• /
• pp.25-31
• /
• 2010

Interface tracking of two phase is significant to analyze multi-phase phenomena. The VOF(Volume of Fluid) and level set are well known interface tracking method. However, they have limitations to solve compressible flow and incompressible flow at the same time. CIP(Cubic Interpolate Propagation) method is appropriate for considering compressible and incompressible flow at once by solving the governing equation which is divided up into advection and non-advection term. In this article, we analyze the droplet impingement according to various We number using improved CIP method which treats nonlinear term once more comparison with original CIP method. Furthermore, we compare spread radius after droplet impingement on the wall with the experimental data and original CIP method. The result using improved CIP method shows the better result of the experiments, comparison with result of original CIP method, and it reduces the mass conservation error which is generated in the numerical analysis comparison with original CIP method.

• Transactions of the Korean Society of Mechanical Engineers B
• /
• v.28 no.7
• /
• pp.871-878
• /
• 2004

An accurate adaptive mesh refinement based on the CIP method is proposed and it is applied to solve the two dimensional advection equations. In this method, the level set function is employed to refine and merge the computation cells. To enhance the accuracy of the solution, the spatial discretization is made by the CIP method. The CIP method has many advantages such as the third order accuracy, less diffusivity, and shape conserving. The mathematical formulation and numerical results are also described. To verify the efficiency, accuracy, and capability of the proposed algorithim, two dimensional rotating slotted cylinder and idealized frontogenesis are numerically simulated by the present scheme. As results, it is confirmed that the present method gives an efficient, reasonable solution in the advection equation.

• 프린팅코리아
• /
• s.12
• /
• pp.102-111
• /
• 2003

오는 9월에는 인쇄분야의 발전을 한눈에 파악할 수 있는 IGAS 2003이 일본에서 개최된다. 과연 올해는 어느 업체가 어떤 획기적인 시스템이나 장비를 선보일지 벌써부터 기대가 모아지고 있다. 최근에는 디지털화의 영향으로 인쇄산업은 하루가 다르게 발전하고 있다. 그래서 인쇄산업은 빠른 정보와 기술을 도입하지 않으면 경쟁에서 살아남을 수 없는 실정이다. 특히 최근 관심이 날로 높아지고 있는 CIP3/4에 대한 정보와 기술은 지난 95년 DRUPA전시회에서 제창된 CIP3가 최근에는 생산관리나 수주관리 등의 'Process'까지 포함해 CIP4로 진화하고 있어 인쇄기의 자동화는 하드웨어적인 면만의 진화에서 벗어나 정보기술을 받아들이는 새로운 국면에 접어들게 되었다. 이에 본지에서는 각 인쇄기 메이커의 CIP3/4 대응현황에 대해 알아보았다.

• 프린팅코리아
• /
• s.9
• /
• pp.171-177
• /
• 2003

최근 인쇄와 관련된 카탈로그를 보면 CIP3라는 단어를 자주 접하게 된다. 그러나 이 뜻을 아는 사람은 생각보다 훨씬 적다. 이에 본지에서는 4회에 걸쳐 CIP3를 비롯해 CIP4에 대한 개념 정립은 물론, 왜 이러한 것이 필요한지에 대해 알아보는 기회를 마련하는 한편, 현재 인쇄관련 솔루션 및 장비 업체들은 여기에 어떻게 대응해 나가고 있는지에 대해 알아본다.

• Proceedings of the Computational Structural Engineering Institute Conference
• /
• 2005.04a
• /
• pp.464-470
• /
• 2005

The numerical analysis is carried out to identify the influence of design factors to shear capacity of cast-in-place (CIP) anchor in ACI 349 Code that is available for the design of fastening system at Nuclear Power Plant (NPP) in this study. The MASA program is used to develop the numerical analysis model and the developed numerical analysis model is verified on a basis of the various test data of CIP anchor. Both $l/d_o$ and $c_1/l$ we considered as design factors. As a result, the variation of $l/d_o$ has no influence on the shear capacity of CIP anchor but $c_1/l$ has a large influence on the shear capacity of CIP anchor, Therefore, it is proved that ACI 349 Code may give a non-conservative results compared with real shear capacity of CIP anchor according to $c_1/l$.

• 프린팅코리아
• /
• s.11
• /
• pp.65-77
• /
• 2003

지난 3.4월호에는 CIP3/4의 개념정리와 국내외 인쇄업체의 도입사례를 살펴보았다. 이번 호에는 국내에 진출한 프리프레스 솔루션 공급업체들의 CIP3/4 공급 현황을 정리해 보았다.