• Title/Summary/Keyword: Liner model

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A Virtual Makeup Program Using Facial Feature Area Extraction Based on Active Shape Model and Modified Alpha Blending (ASM 기반의 얼굴 특징 영역 추출 및 변형된 알파 블렌딩을 이용한 가상 메이크업 프로그램)

  • Koo, Ja-Myoung;Cho, Tai-Hoon
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.14 no.8
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    • pp.1827-1835
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    • 2010
  • In this paper, facial feature areas in user picture are created by facial feature points extracted by ASM(Active Shape Model). In a existing virtual make-up application, users manually select a few features that are exactly. Users are uncomfortable with this method. We propose a virtual makeup application using ASM that does not require user input. In order to express a natural makeup, the modified alpha blendings for each cosmetic are used to blend skin color with cosmetic color. The Virtual makeup application was implemented to apply Foundation, Blush, Lip Stick, Lip Liner, Eye Pencil, Eye Liner and Eye Shadow.

Seismic performance of the thin-walled square CFST columns with lining steel tubes

  • Wang, Xuanding;Liu, Jiepeng;Wang, Xian-Tie;Cheng, Guozhong;Ding, Yan
    • Steel and Composite Structures
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    • v.44 no.3
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    • pp.423-436
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    • 2022
  • This paper proposes an innovative thin-walled square concrete filled steel tubular (CFST) column with an octagonal/circular lining steel tube, in which the outer steel tube and the inner liner are fabricated independently of each other and connected by slot-weld or self-tapping screw connections. Twelve thin-walled square CFST columns were tested under quasi-static loading, considering the parameters of liner type, connection type between the square tube and liner, yield strength of steel tube, and the axial load ratio. The seismic performance of the thin-walled square CFST columns is effectively improved by the octagonal and circular liners, and all the liner-stiffened specimens showed an excellent ductile behavior with the ultimate draft ratios being much larger than 1/50 and the ductility coefficients being generally higher than 4.0. The energy dissipation abilities of the specimens with circular liners and self-tapping screw connections were superior to those with octagonal liner and slot-weld connections. Based on the test results, both the finite element (FE) and simplified theoretical models were established, considering the post-buckling strength of the thin-walled square steel tube and the confinement effect of the liners, and the proposed models well predicted the hysteretic behavior of the liner-stiffened specimens.

Thermo-Viscoelastic Residual Stress Analysis of Metal Liner-Inserted Composite Cylinders

  • Hwang, Ho-Yon;Kim, Yeong-Kook;Kim, Cheol;Kwon, Young-Doo;Park, Woong
    • Journal of Mechanical Science and Technology
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    • v.17 no.2
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    • pp.171-180
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    • 2003
  • One of the most significant problems in the processing of composite materials is residual stress. The high residual stress may cause cracking in the matrix without external loads and degrade the integrity of composite structures. In this study, thermo-viscoelastic residual stresses occurred in an aluminum liner-inserted polymer composite cylinder are investigated. This type of the structure is used for rocket fuselage due to the convenience to attach payloads and equipment to the metal liner by machining. The time and degree of cure dependent thermo-viscoelastic constitutive equations are developed and coupled with a thermo-chemical process model. These equations are solved with the finite element method to predict the residual stresses in the composite cylinder and also in the interface between the liner and the composite during cure.

Cruise Liner of 21st Century (21세기 크루즈 객선)

  • 박명규
    • Journal of the Korean Society of Marine Environment & Safety
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    • v.2 no.1
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    • pp.157-180
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    • 1996
  • The improvement in the high-class planning, design, and construction characteristics of new model Cruise Liner has been required. To find design philosophy way to improve the total Cruise, we need a world Cruise Fleet which agrees well with design morphology results. This paper describes the creation of world Cruise Fleet from conceptual design to total Cruise model and procedures to confirm the model with embodiment design test result.

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The use of finite element techniques for the deformation and stress of cylinder liner (유한요소법을 이용한 실린더 라이너의 변형과 응력에 관한 연구)

  • 오성환;조원행
    • Journal of the korean Society of Automotive Engineers
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    • v.7 no.1
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    • pp.55-62
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    • 1985
  • This study modeled in axisymmetric solid elements and analyzed the neighbourhood of the contact surface zone between liner and block in a diesel engine. The results of finite element analysis show that this model is deformed by bolt jointed load and pressure load and that stresses can vary much due to major dimensional changes in the joint area. Guidelines have been developed for selecting fillet radii and for the width of the contact area between liner and block.

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The Effects of Slow Steaming on the Liners' Operating Strategy

  • Woo, Jong-Kyun
    • Journal of Navigation and Port Research
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    • v.38 no.6
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    • pp.567-575
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    • 2014
  • In recent times, an obvious strategy in liner shipping markets that has come to the fore is slow steaming. Nowadays, most liner shipping companies have decelerated the voyage speed to 15-18 knots on major routes, and some leading liner shipping companies have a plan to reduce it to below 15 knots. Slow steaming is helpful in reducing the operating cost and the amount of greenhouse-gas emissions on a single vessel with lower fuel consumption. However, it also creates various negative effects such as the opportunity cost, additional fixed costs and an in-transit inventory cost on a loop. Hence, the net operating cost on a loop is changing dynamically due to the changes of voyage speed based on various slow steaming effects. The aim of this study is to analyze the slow steaming effects in the liner shipping, and to find the best voyage speed that minimizes the operating cost on a loop. Moreover, this study suggests the recommendable strategy for liner shipping companies. To achieve the aim of this study, a simulation model has been designed using System Dynamics.

A Study of Interactions Between Perpendicularly Spaced Tunnels (상하교차터널의 상호거동에 대한 연구)

  • Kim, Sang-Hwan;Lee, Hyung-Joo
    • Journal of the Korean Geotechnical Society
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    • v.19 no.5
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    • pp.273-280
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    • 2003
  • This paper describes a study of the effect of shield tunnel construction on the liners of nearby existing perpendicular tunnels. The research programme investigated the influence of tunnel proximity and alignment, liner stiffness on the nature of the interactions between closely spaced tunnels in clay. A total of two sets of carefully controlled 1g physical model tests, including the same test for repeatability, were performed. A cylindrical test tank was developed and used to produce clay samples of Speswhite kaolin. In each of the tests, three model tunnels were installed in order to conduct two interaction experiments in one clay sample. The tunnel liners were installed using a model tunnelling machine that was designed and developed to simulate the construction of a full scale shield tunnel. The first tunnel liner was instrumented to investigate its behaviour due to the installation of each of the new tunnels. The interaction mechanisms observed from the physical model tests are discussed and interpreted.

Evaluation of Fly Ash as an Alternative to Clay Liner Material in Landfills (플라이애쉬의 차수 및 오염물 차단 능력 평가 연구)

  • Jeong, Mun-Gyeong;Hyeon, Jae-Hyeok;Kim, Seung-Hyeon
    • Geotechnical Engineering
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    • v.14 no.5
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    • pp.191-204
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    • 1998
  • The feasibility of fly ash was evaluated as an alternative liner material to the conventional clay liner of landfills through modeling and laboratory experiments. In order to consider the effect of unsaturation on water flow through the liner, analyses were made to compare flow characteristics in saturated liner with that of unsaturated one. Contaminant migration characteristics in liners were investigated by batch experiment and modeling, in which phenol was employed as a model was solved by numerical techniques of finite difference method and predictor-corrector method to deal with high non-linearity. Sequential method was used to handle the system of differential equations. Results show that the alternative liner material is more capable of cutting off water flow in unsaturated condition and in preventing phenol from passing through it. It can be seen that, under the flow conditions considered in this study, the conventional saturation approach underestimates the amount of water passing through the liner and doers the cut-off capability against phenol significantly.

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Assessing Critical Factors of Brand Equity for Container Liner Shipping Companies using Analytic Hierarchy Process

  • Jang, Hyun Mi;Kim, Sang Youl;Park, Ho
    • Journal of Navigation and Port Research
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    • v.38 no.2
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    • pp.177-184
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    • 2014
  • Recently, brand equity is paid much attention in various industries. However, container liner shipping companies are still unfamiliar with this concept, and also the brand equity model has not been tested yet in shipping context. This study, therefore, aims to measure the relative importance of brand equity factors of container liner shipping companies by employing AHP (Analytic Hierarchy Process). This study concludes that perceived quality, in particular cost-related service quality, is the most influential factor of brand equity, while weak support is found for brand association. In addition to this, group comparisons were conducted between shipping companies, freight forwarders and academics. The results will be useful as they firstly define brand equity and its role in shipping context, highlighting the significance of brand management to container liner shipping firms. This evaluation is not an end in itself, but will eventually be utilised as a tool to build competitive advantage which cannot be easily imitated by competitors.

Numerical study on contact behavior of TSL (Thin Spray-on Liner) (접촉 거동을 고려한 TSL(Thin Spray-on Liner)의 수치해석 연구)

  • Lee, Chulho;Chang, Soo-Ho;Lee, Kicheol;Kim, Dongwook
    • Journal of Korean Tunnelling and Underground Space Association
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    • v.17 no.6
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    • pp.665-674
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    • 2015
  • A TSL (Thin Spray-on Liner) which consists of polymers has a higher initial strength, faster construction time and higher waterproofing performance than the conventional cementitious shotcrete. Main supporting mechanism of TSL is the adhesion and tensile strength which is distinct from the conventional shotcrete. Even though highly in demand due to its outstanding characteristics, TSL is not yet well-known support material. In this study, to evaluate contact behavior of TSL, numerical analysis was performed with comparing result from laboratory tests. From the analysis, cohesive behavior at the contact surface between TSL and rock can be evaluated by using combination of cohesive and the damage model. In addition, results show that the cohesive stiffness controled slope between force and displacement, the fracture energy controled level of force at the contact.