Reconfigurable Antennas in mmWave MIMO Systems

The key obstacle to achieving the full potential of the millimeter wave (mmWave) band has been the poor propagation characteristics of wireless signals in this band. One approach to overcome this issue is to use antennas that can support higher gains while providing beam adaptability and diversity, i.e., reconfigurable antennas. In this article, we present a new architecture for mmWave multiple-input multiple-output (MIMO) communications that uses a new class of reconfigurable antennas. More specifically, the proposed lens-based antennas can support multiple radiation patterns while using a single radio frequency chain. Moreover, by using a beam selection network, each antenna beam can be steered in the desired direction. Further, using the proposed reconfigurable antenna in a MIMO architecture, we propose a new signal processing algorithm that uses the additional degrees of freedom provided by the antennas to overcome propagation issues at mmWave frequencies. Our simulation results show that the proposed reconfigurable antenna MIMO architecture significantly enhances the performance of mmWave communication systems

Meaning-Making Coping Among Cancer Patients in Sweden and South Korea: A Comparative Perspective

The present study compared meaning-making coping among cancer patients in Sweden and South Korea, with a focus on the sociocultural context. Semi-structured interviews were conducted with 51 Swedes and 33 Koreans. The results showed significant differences between the two countries as well as similarities in existential, spiritual, and religious coping. For example, Swedes primarily used meaning-making coping as a means of meditation or relaxation, whereas Koreans relied on coping with prayer and using healthy foods as a means to survive. The present study confirms the significance of investigating cultural context when we explore the use of meaning-making coping among people who have experienced cancer.Meaning-making copin

Spiritual and Secular Existential Meaning-Making Coping Methods among Japanese Cancer Patients

The present article is written on the basis of a sociological international project on meaning-making coping. The aim of the project has been to understand the role of culture in meaning-making coping. The project embarrasses studies among cancer patients in 10 countries. The present article is confined to the results obtained in the study in japan. The main aim was to investigate the impact of culture from a sociological perspective on the choice of coping methods. Twelve participants with various kinds of cancer were interviewed.Several meaning-making coping methods are found in the present study. This study underlines the importance of investigating cultural and social context when investigating into the use of the meaning-making coping methods in different countries

Agency and Adaptation: Strategies of Immigrants’ Descendants on the Swedish Labor Market

This article explores how descendants of immigrants in Sweden understand labor market conditions, and how such understandings influence their occupational strategies. We interviewed 21 Sweden-born individuals with non-Western immigrant parents, and identified three strategies based on our analysis of the data: ‘choosing’ the right job, adapting the habitus, and using cultural capital in flexible ways. The first strategy covers interviewees working in jobs with labor shortages and/or high demand for employees with immigrant background. The second covers interviewees who could learn through failing, with substantial resilience and persistence. The third deals with interviewees who searched for jobs in branches that valued their particular skill set, entailing the importance of being flexible on the labor marke

Context aware saliency map generation using semantic segmentation

Saliency map detection, as a method for detecting important regions of an image, is used in many applications such as image classification and recognition. We propose that context detection could have an essential role in image saliency detection. This requires extraction of high level features. In this paper a saliency map is proposed, based on image context detection using semantic segmentation as a high level feature. Saliency map from semantic information is fused with color and contrast based saliency maps. The final saliency map is then generated. Simulation results for Pascal-voc11 image dataset show 99% accuracy in context detection. Also final saliency map produced by our proposed method shows acceptable results in detecting salient points.Comment: 5 pages, 7 figures, 2 table