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Dynamic behaviour of beam carrying masses has attracted attention of many researchers and engineers. Many studies on the analytical solution of beam with concentric tip mass have been published. However, there are limited works on vibration analysis of beam with an eccentric three dimensional object. In this case, bending and torsional deformations of beam are coupled due to the boundary conditions. Analytical solution of equations of motion of the system is complicated and lengthy. Therefore, in this study, Differential Transform Method (DTM) is applied to solve the relevant equations. First, the Timoshenko beam with 3D tip attachment whose centre of gravity is not coincident with beam end point is considered. The beam is assumed to undergo bending in two orthogonal planes and torsional deformation about beam axis. Using Hamilton's principle the equations of motion of the system along with the possible boundary conditions are derived. Later DTM is applied to obtain natural frequencies and mode shapes of the system. According to the relevant literature DTM has not been applied to such a system so far. Moreover, the problem is modelled by Ansys, the well-known finite element method, and impact test is applied to extract experimental modal data. Comparing DTM results with finite element and experimental results it is concluded that the proposed approach produces accurate results.
Background: Cancer is a major public health problem in many parts of the world. Gastrointestinal (GI) cancers are responsible for 20% of all cancer-related deaths. In Turkey, stomach cancers account for 8.9%, colon cancer for 6.9%, and pancreatic cancer for 5.9%. This study examined the anxiety-depression levels and the quality of life of patients with GI cancer. Materials and Methods: This descriptive study was carried out on 335 adult patients who had gastrointestinal cancer and who were hospitalized in medical oncology clinics. Data were collected by using hospital anxiety and depression scale, EORTC QLQ C-30 and a patient information form. Results: Patients who were male and secondary school graduates/graduates/postgraduates experienced more functional difficulties. Patients with poor economic status experienced more symptoms. Patient general wellbeing decreased with increase disease duration. The level of functional difficulties decreased with an increasing number of hospital stays. Anxiety scores increased with decreasing age. Both anxiety and depression scores increased with increasing disease duration. Patients who were female, single/widowed/divorced, and literate/elementary school graduates had higher anxiety and depression scores. Life quality decreased with increasing anxiety and depression. Conclusions: Patients should be supported to prevent anxiety and depression, and should be followed up with this in mind.
We discuss the problems of scattering in this framework, and show that the applied method is very useful in the investigation of the effect of the resonance in the observed scattering cross sections. In this study, not only the scattering cross sections but also the decomposition of the scattering cross sections was computed for the α-α system. To obtain the decomposition of scattering cross sections into resonance and residual continuum terms, the complex scaled orthogonality condition model and the extended completeness relation are used. Applying the present method to the α-α and α-n systems, we obtained good reproduction of the observed phase shifts and cross sections. The decomposition into resonance and continuum terms makes clear that resonance contributions are dominant but continuum terms and their interference are not negligible. To understand the behavior of observed phase shifts and the shape of the cross sections, both resonance and continuum terms are calculated.
본 연구는 IT서비스관리체계의 기술수준과 IT서비스 관리 프로세스 성숙도 정도가 IT 아웃소싱성과에 미치는 영향을 통계적으로 유의한 분석을 통해 객관적인 결과를 제시함으로써 기업에 IT 서비스의 SCM에 대한 의식 수준 강화와 IT서비스 관리 프로세스의 중요성을 인식 시켜 주고, 이것이 고객만족과 SLA의 성과에 영향을 주고 있음을 시사하고 있다.
최근 정보통신기술의 발전과 세계화의 진전으로 IT제조업의 생산 효율화를 통한 비용절감의 방안으로 각 생산공정의 국제분업이 이루어지게 되었다. 국제분업을 통해 국가는 비교우위의 생산요소에 집적을 통해 효율화를 이루게 된다. 하지만 이러한 국제분업을 통해 기술의 양극화 현상이 나타나게 되고 국제분업구조에서 기술중진국의 비교우위부문의 확보가 새로운 과제로 부상되었다. 따라서 기술중 진국이 장기적으로 국제분업구조에서 기술부문의 비교우위확보를 위해 민간부문과 공공부문에서 동시에 이루어져야한다.
Launched in 2008 and 2010 respectively, Instagram and Pinterest are two of the fasted growing social media platforms with 220 million users combined (Leverage 2014, Techcrunch 2014, Loren & Swiderski 2012). Their success is due to their simplicity and a focus on visuals rather than text, furthermore they are described as platforms with strategic potential for fashion brands (Wired 2012). Despite this, many fashion brands have been slow to engage with them. However the Huffington Post (2012) suggests that the visual social media has a wide appeal with respect to both brand positioning and increasing awareness. Recent research by Mashable (2014) highlights that referral traffic and spend is higher from Pinterest users than Facebook users, and this contributes to the rationale for study. The aim of this reseach is twofold, firstly it is to explore the reasons for the utilisation of visual social media platforms within a fashion brands marketing planning cycle, and second it seeks to identify the strategic and operational ways in which fashion brands can use them. For the purpose of this paper only Instagram and Pinterest are investigated. Using a qualitative and inductive approach, the study will use in-depth elite interviews with 6 UK fashion brands (2 Luxury, 2 mid-market, 2 value) alongside content analysis of their platforms. This will enable the research to also consider how each platform can be harnessed at different levels of the market therefore contributing to the lack of empirical applied research in this area.
IT서비스의 아웃소싱을 통해 기업은 핵심역량에 집중하므로써 비용절감을 통한 경쟁력확보를 위해 노력해왔다. 서비스데스크는 단순히 고객의 불만사항이나 장애처리를 담당하는 영역을 넘어 IT아웃소싱에서 고객사와 IT서비스 제공사의 단일접점 뿐만 아니라 IT서비스제공사간의 원활한 의사소통을 통해 협업을 이루어가고 있다. 신세계 이마트의 무인점포시스템과 에릭슨코리아의 토털IT아웃소싱의 사례 중심으로 서비스데스크의 역할과 기능을 살펴본다.