• Steel and Composite Structures
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• 제44권1호
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• pp.65-79
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• 2022

The main goal of this paper is to study the vibration of damaged core laminated annular plates with FG face sheets based on a three-dimensional theory of elasticity. The structures are made of a damaged isotropic core and two external face sheets. These skins are strengthened at the nanoscale level by randomly oriented Carbon nanotubes (CNTs) and are reinforced at the microscale stage by oriented straight fibers. These reinforcing phases are included in a polymer matrix and a three-phase approach based on the Eshelby-Mori-Tanaka scheme and on the Halpin-Tsai approach, which is developed to compute the overall mechanical properties of the composite material. In this study the effect of microcracks on the vibrational characteristic of the sandwich plate is considered. In particular, the structures are made by an isotropic core that undergoes a progressive uniform damage, which is modeled as a decay of the mechanical properties expressed in terms of engineering constants. These defects are uniformly distributed and affect the central layer of the plates independently from the direction, this phenomenon is known as "isotropic damage" and it is fully described by a scalar parameter. Three complicated equations of motion for the sectorial plates under consideration are semi-analytically solved by using 2-D differential quadrature method. Using the 2-D differential quadrature method in the r- and z-directions, allows one to deal with sandwich annular plate with arbitrary thickness distribution of material properties and also to implement the effects of different boundary conditions of the structure efficiently and in an exact manner. The fast rate of convergence and accuracy of the method are investigated through the different solved examples. The sandwich annular plate is assumed to have any arbitrary boundary conditions at the circular edges including simply supported, clamped and, free. Several parametric analyses are carried out to investigate the mechanical behavior of these multi-layered structures depending on the damage features, through-the-thickness distribution, and boundary conditions.

• 영어영문학
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• 제55권1호
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• pp.107-128
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• 2009

Literature had been at center-stage in the traditional grammar-translation-focused English classrooms up to the mid-twentieth century. As the Audiolingual Method and the Communicative Language Teaching have gained popularity in the English classrooms, however, literature has receded into the background of English education. The main reasons for using literary texts in the English classrooms for communication-focused English instruction need to be examined. First of all, students can come in touch with the subtle and varied uses of language through literature-based teaching. They also feel close to certain characters in the literary work and share the emotional reponses with them. They get personally involved in the plot of the story. Universal human experience and cultural enrichment are two other merits which can be conferred on students by literary texts. Such linguistic and literary experiences can be significantly integrated into the literature-based instruction. More significantly, the four language skills (reading, writing, listening and speaking) can be combined with one another and integrated into a literature-focused curriculum for English education. The value of literary texts in the English classrooms can be clearly demonstrated by effective ways of using such texts as Charlotte's Web for integrated instruction. The full array of benefits that literature can bring to English instruction, however, has yet to be fully realized. These potentials need to be materialized into classroom practice.

• Asia pacific journal of information systems
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• 제23권1호
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• pp.65-86
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• 2013

Understanding success factors in electronic banking is important to helping banks succeed. In this study, we extend DeLone and McLean's IS success model to the electronic banking by adding trust as a success variable. We tested the extended model by comparing internet banking and mobile banking in Indonesia. Using a structural equation modelling approach. We found that system quality had positive impacts on perceived usefulness and end-user satisfaction for both internet banking and mobile banking. The development of e-banking (internet banking and mobile banking) in Indonesia is in its initial stage. Finally, although we tested for the common method bias to relieve concern, further research may use multiple methods when collecting the data. This study investigated the role of each dimension of IS success in the electronic banking environment. While the original IS success model emphasizes individual and organizational impacts, we have argued that trust is an important indicator of IS impact on an individual socially in the banking industry. The contribution of our study is two-fold. Conceptually, the study is the first to extend the IS success model to the e-banking context. We provide an extension of the updated IS success model by adding trust as an outcome variable in the research model.

• 한국중재학회지:중재연구
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• 제20권2호
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• pp.49-65
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• 2010

The expanded role of courts in arbitral procedures is said to have certain detrimental effects on the cost-effective approach to arbitration. This is the case when the court is appointing an arbitrator, pursuant to the specific domestic legal regime. The danger of decisions, especially those with expanded role of courts can create delays and hurdles. Even with contradictory viewpoints, the role of the court should complement the arbitral tribunal and not impede the functioning of arbitration independent of the judicial system. In this paper, two recent cases in Korean Supreme Court are reviewed, trying to find the proper implications on further arbitration practices especially in the stage of arbitrator appointment. Even though the proper appointment of arbitrators is essential to the existence of valid arbitration proceedings, appointment of arbitrators by the courts should constitute an administrative power, and not a judicial power. The cases reviewed make clear that the court must play a facilitative role in international commercial arbitration by assisting the parties in appointing the arbitral tribunal, the court intervention must be kept to a minimum.

• 성인간호학회지
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• 제28권5호
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• pp.514-524
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• 2016

Purpose: The purpose of this study was to describe the reported experiences of health management among twenty elderly workers living in urban areas. Methods: Corbin and Strauss's grounded theory approach was used to capture the meaning of health management. Theoretical sampling technique was used in the interviews. Using open coding, axial coding, and selective coding, data were collected and analyzed simultaneously. Results: The core category was 'pursuing health to take root in the workplace.' Four stages of the elderly workers' health management were identified as 'awareness of health changes', 'having the will to be healthy', 'utilization of health care resources', and 'reorganization of health habits.' However, when the elderly workers reported limited capacity to manage their health, then two new categories were described: 'awareness of health changes' and 'settlement with current health.' Conclusion: To the elderly workers the concept of working was equated with being healthy. Further, the participants reported having a future oriented view of health and sought health to extend their working lives. The specialized intervention of health management targeting elderly workers in the settlement stage of current health habits should be provided.

• 유통과학연구
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• 제17권10호
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• pp.17-26
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• 2019

Purpose - This research investigates the old marketing mix approach to satisfaction and loyalty from the perspective of research subjects of Samsung brand smartphone cases through empirical testing involving product quality, price, distribution channel variables as antecedent variables. Research design, data, and methodology - This study emphasizes the empirical/quantitative concept by using a survey as a data collection tool. The number of samples used was 179 eligible respondents who used Samsung smartphone devices for more than five years. Statistical testing tools use PLS with several testing stages such as the classical assumption test to the hypothesis testing stage. Results - The nine hypotheses proposed, as many as two hypotheses were proposed, namely intervening relationships involving Price and Distribution channel variables on customer satisfaction and customer loyalty. Conclusions - Product quality is the essential component affecting customer satisfaction and loyalty while distribution channel is a complementary component that is no less important to measure the extent to which customer satisfaction expectations and customer loyalty are realized for the product quality of the products that have been produced and marketed. The price component is not the only reason to make consumers satisfied and loyal.

• International Journal of Costume and Fashion
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• 제17권1호
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• pp.1-15
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• 2017

This study made use of a qualitative approach with an intrinsic case study to explore how handheld devices applications were integrated in teaching and learning in Textiles, Clothing and Design programmes. Participants of the study were purposively sampled from the Textiles and Clothing department at a selected university of Science and Technology in Zimbabwe comprising eight lecturers and thirty-two students. In-depth, focus group interviews and observations were used to gather data for the study. The findings of the study showed that participants were still at the stage of actively experimenting with very limited handheld device applications for the purposes of teaching and learning. Photoediters and digital cameras were the commonest applications used in most modules of the Textiles, Clothing and Design programmes. Though the photoediters and digital cameras were found to match the multimedia category of the Functionality framework, these were not fully utilised by students. It was recommended that there is need for the Textiles, Clothing and Design lecturers to provide opportunities for students to use a variety of applications on handheld devices for collaborative designing in practical modules of the programmes as these can encourage the development of critical skills necessary for creating innovative textiles and fashion designs.

• Journal of Advanced Marine Engineering and Technology
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• 제10권4호
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• pp.41-49
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• 1986

With the trend towards high propulsive level, increasing ship's dimensions and heavier shaft systems supported by the hull structure of relatively stiffness in modern ships, transverse vibrations of propulsion shaft system have become one of the problems that should be predicted in the early design stage. Regarding transverse vibrations, coupling terms such as oilfilm, gyroscope and hydrodynamic effect of the propeller exist between the vertical and horizontal vibration, furthermore for the shaft system with strut and bossing its physical properties incorporated with hull structure must be considered. In order to predict the transverse vibratory condition of the propulsion shaft and take some appropriate countermeasures, it is necessary to make a fairly strict estimation of the vibratory behaviours of it. In this paper, theoretical approach using the finite element method is investigated to calculate natural frequencies and vibration modes for coupled free transverse vibrations of shaft system in two planes. Based on the method investigated a digital computer program is developed and is applied to calculate the above-mentioned vibrations of an experimental model shaft system. The results of the calculation are compared with those of the experimental measurements and they show an acceptable agreement.

• Nuclear Engineering and Technology
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• 제31권3호
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• pp.267-275
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• 1999

This paper deals with the industrial problem of thermal striping damage on the French prototype fast breeder reactor, Phenix and it was studied in coordination with the research program of IAEA. The thermomechanical and fracture mechanics evaluation procedure of thermal striping damage on the tee-junction of the secondary piping using Green's function method and standard FEM is presented. The thermohydraulic(T/H) loading condition used in the present analysis is the random type thermal loads computed by T/H analysis on the turbulent mixing of the two flows with different temperatures. The thermomechanical fatigue damage was evaluated according to ASME code section 111 subsection NH. The results of the fatigue analysis showed that fatigue failure would occur at the welded joint within 90,000 hours of operation. The assessment for the fracture behavior of the welded joint showed that the crack would be initiated at an early stage in the operation. It took 42,698.9 hours for the crack to propagate up to 5 mm along the thickness direction. After then, however, the instability analysis, using tearing modulus, showed that the crack would be arrested, which was in agreement with the actual observation of the crack. An efficient analysis procedure using Green's function approach for the crack propagation problem under random type load was proposed in this study. The analysis results showed good agreement with those of the practical observations.

• 한국콘텐츠학회논문지
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• 제14권11호
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• pp.575-583
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• 2014

롤랑 바르트에 의하면 신화란 상호 연결된 함축적 개념의 연쇄로서 1단계 의미작용 체계가 촉발하는 상호 연관된 연쇄적 함축의미를 통해서 그 모습을 드러내는 것이다. 그러므로 실사영화나 애니메이션에서 보이는 특정 장면의 함축의미는 그 장면이 만들어지기 이전에 사회적 통념이나 가치로서 이미 문화 속에 내재되어 있는 것이다. 디즈니 애니메이션의 경우에도 바르트가 언급한 외시의미와 함축의미의 두 가지 층위를 가지고 있다. 그러나 디즈니 애니메이션은 작품에 내재되어 있는 신화를 표현하고 전달하는 데에 있어서 명확하고 구체화된 캐릭터의 전형성을 토대로 외시적 표현과 직접적 소통을 추구하는 경향을 보인다. 그러므로 디즈니 애니메이션에서 보이는 의시적 의미작용의 경향은 디즈니 애니메이션 미학에 접근하는 한 갈래의 연구 방법이라고 할 수 있다.