Space Communication Research Articles

자계 이방성 축 방향에 따른 안테나 공진 주파수 특성

The main theme of the 2024 Mobile World Congress (MWC), held annually in Barcelona, Spain, is ‘5G and Beyond.’ Extensive research and activity focus on 6G (IMT-2030) technology, which is expected to become the core infrastructure of the mobile industry by 2030, representing the future of wireless communications. This necessitates the support of more wireless frequency bands for terminals to be compatible with the upcoming Beyond 5G (B5G) and 6G technologies. The antenna mounting space for B5G wireless communication, with various form factors for hardware, such as smartphones, smartwatches, and smart rings, is limited, as these devices become increasingly slimmer and lighter. Several methods have been studied to reduce antenna size while maintaining performance in a limited space. Representative examples include integrated-structure, metamaterial, and magnetodielectric antennas. In this study, it is analyzed for the effect of the resonance frequency characteristics of antennas based on the arrangement direction of the anisotropic material in the limited antenna mounting space of communication terminals. Aiming to reduce antenna size in the B5G era, it is proposed for the necessity of optimal design that focuses on the axial direction of the magneto-dielectric materials when designing antennas using anisotropic materials for antenna miniaturization.

중국 3대 가족의 소통을 위한 주거공간 및 행위 특성에 대한 관찰 연구

중국 3대 가족의 소통을 위한 주거공간 및 행위 특성에 대한 관찰 연구

고독사 위험군의 심리적 활력을 위한 활동이론 기반의 커뮤니케이션 공간 연구 - 북유럽 코하우징 사례를 중심으로 -

고독사 위험군의 심리적 활력을 위한 활동이론 기반의 커뮤니케이션 공간 연구 - 북유럽 코하우징 사례를 중심으로 -

집합주택의 공간계획을 위한 교육콘텐츠 선호도연구

This study investigated and analyzed literature and precedent cases of Korean and foreign multi-family housing to study the impact of integrating educational contents and space planning in collective houses on residents' lives. Based on the results, this study suggests directions for improving the educational environment in Korean multi-family housing that can increase residential satisfaction. The research methods used were surveys and in-depth interviews with experts. The collected data were subjected to frequency analysis using SPSS 28.0. The results of the survey, which was conducted through a structured online questionnaire, confirmed that resident demand-driven Educational program management can increase resident engagement and housing satisfaction, and highlighted the importance of building sustainable multi-family housing and educational community spaces.

Risk and Resistance: Ageing in the Charity Retail Sector

Abstract Background Charity shops have long been found to promote sociability, nurture experiences of belonging and act as spaces for community, caring and well-being. Older people remain likely to participate in this setting and charity shop volunteering is typically associated with events of positive ageing. However, the sector's growing emphasis on professionalism and profit raises questions about the potential impact of organisational change on this group. This research seeks to address this gap by exploring how older volunteers experience their roles within the evolving context of the modern UK charity shop. Methods This PhD study employed an ethnographic approach, involving 268 hours of immersive fieldwork across 3 charity shops in Greater Manchester. Ethnographic data was complemented by 17 semi-structured interviews with volunteers and store managers. Results Ageist discourses have been embedded into the sector, which work to reconstitute older volunteers as a type of ‘risky subject'. Such discourses manifest in unique ways on the charity shop floor and comprise of a range of practices, both subtle and overt, that are driven by the organisations focus on an intensified form of productivity. This prompts diverse forms of resistance from older volunteers, which are underpinned by the aim to not only counter negative perceptions of ageing but be just ‘visible’ enough in order to get by. Conclusion This paper unpacks the multifaceted nature of ageism in the charity retail sector. Whilst it is not as simple as suggesting that charity shops are solely characterised by ageism - especially considering the volunteer experience varies considerably across different contexts and places - age-related tensions are nonetheless more prevalent in the everyday. Older volunteers are not passive in the face of such change and continually work to avoid exclusion and remain integrated in this space in diverse ways.

Committing to diversity in participants, participation and knowledge production: place-based insights from the community science of Soilsafe Aotearoa

Researchers have an obligation to study aspects of our world that have meaning for society. This means recognising a place-based diversity of society, of potential participants, of types of participation and of knowledge production. Therefore, developing a successful community science (CS) programme that engenders a sense of ownership for a diversity of public participants requires the prioritisation of getting to know what diverse participants value and the context of that valuation. This paper describes the necessary rigour of considering the launch of the CS programme Soilsafe Aotearoa (SA) in 2021, and its subsequent implementation and evolution based on a project commitment to diversity of social values of soil in Aotearoa New Zealand (Aotearoa NZ), delivering on public demand. We discuss how SA engages with the community by scientific screening soil metal contaminants in participants’ backyards, as well as through inclusive education and knowledge co-production in schools and community spaces. The objective in this work is to generate wider participation and dialogue on a diversity of soil value(s) so that communities in Aotearoa NZ are cognisant of what soil might represent to others, and to contextualise what a lack of soil care might mean for them and society more broadly. Here we argue that a diversity of participants and participation can support a more inclusive and contextual, place-based CS approach. We illustrate how that might be achieved through bridging arts, Indigenous knowledge production, and social, as well as conventional sciences. Through an approach that recognises that values about the world are tied to participants’ geographic, demographic and cultural contexts as well as the sectors of society they work and live with, we demonstrate the importance of researchers’ attention to not just scientific enquiry, but intersections of different knowledge production and communication for better societal and science outcomes.

The effect of dwelling size on the mental health and quality of life of female caregivers living in informal tiny homes in Hong Kong

BackgroundAlthough the adverse impact of substandard informal housing has been widely documented, most studies concentrated on developing societies, thereby leaving informal housing in developed regions underexplored. This study examines Hong Kong, where limited dwelling size is a distinctive feature that characterises informal housing, to explore the impact of housing informality on mental health, with a particular focus on dwelling size. It centers on subdivided units (SDUs), which are tiny compartments partitioned from a large domestic quarter, to understand how housing informality and housing size affect the mental well-being of female caregivers, who typically bear the brunt of the housework.MethodsIn partnership with nongovernment organisations in three SDU-abundant districts, this mixed-methods study conducted a survey on 413 female caregivers aged 18—65 and qualitative research combining ethnographic observations and in-depth interviews on 36 families living in SDUs in Hong Kong between 2021 and 2023. The mental health outcomes and health-related quality of life (HRQoL) of the participants were assessed by using the Depression, Anxiety, and Stress Scale-21 and a EuroQol-5 Dimension-5 Level questionnaire.ResultsDepression, anxiety and stress were prevalent across the female caregivers living in SDUs (12.4%), as well as a significantly lower HRQoL compared with that of the general population (0.882 vs. 0.919). Findings showed that a total floor area smaller than 13.0 m2 was associated with increased likelihood of experiencing anxiety and depression and reduced HRQoL. Cramped living space adversely affected the caregivers’ well-being through the 1) physical, 2) relational and 3) personal aspects of home experiences. Negative experiences at home can cause housework burnout, exacerbate family conflicts and lead to feelings of repression and low self-efficacy.ConclusionsThis study contributes to the understanding of the consequences of housing informality in diverse geographical contexts and illuminates the effect of dwelling size by identifying the mechanisms through which housing size can affect the mental well-being of residents, which may vary depending on their family status. The findings yield important policy implications, including the need to establish a minimum space standard for subdivided residential dwellings and ensure equitable access to community spaces for deprived families.

[Inter]play: Interiority and designing the learning commons

[Inter]play is a collaborative project that reimagines the central courtyard of a local public elementary school in Knoxville, TN as a dynamic learning commons through the principles of interiority and commoning. By prioritizing user experiences and community engagement, the design integrates flexible, interactive, and sensory-rich elements, transforming the previously dormant 8,000-square-foot space into a vibrant educational environment. Speculative thinking seeded a creative process that fueled the project’s evolution and empowered the elementary school community to employ the design proposal toward negotiating the project’s paths to realization. The ongoing multi-phase design process emphasizes collective ownership and agency, ultimately resulting in a model for the learning commons that encourages exploration and fosters a sense of community. This approach highlights the crucial role of interior architecture in developing communal and responsive educational spaces.

Interfacial modification of CuO/Ga2O3 by plasmonic Pt for high performance self-powered solar-blind UV photodetector

Applications for solar-blind photodetectors (PDs) vary widely and include space communications, ozone monitoring, and more. In this study, pulsed laser deposition (PLD) and ion sputtering were employed to develop an unusual self-powered deep ultraviolet (UV) photodetector based on CuO/Ga2O3 with a Pt nanoparticles (NPs) interface. The Pt NPs interface transforms the device design from heterojunction to Schottky junction. The device features a low dark current of 83.2 fA and performs a high photo-to-dark current (Iphoto/Idark) ratio of 1.72 × 104, a specific detectivity (D*) of 9.98 × 1011 Jones, and a quick decay time of 56 ms upon 254 nm UV light at 196.5 μW/cm2 without any power supply. The CuO/Pt/Ga2O3 Schottky junction-based device outperforms the CuO/Ga2O3 heterojunction-based device in terms of detection capabilities in both biased and non-biased settings. This is explained by the Schottky barrier creation mechanism with both Ga2O3 and CuO films, as well as how the plasmon resonance effect (PR effect) balances the barrier on the Ga2O3 side. Furthermore, Pt NPs serve as a potential well, offering an additional recombination channel that accelerates the decay process when the light is turned off. Our findings pave the way for more optoelectronic uses of Ga2O3-based solar-blind UV photodetectors in the future.

Social workers’ core components for mitigating problematic school absenteeism: the case of school social teams in Sweden

ABSTRACT Problematic school absenteeism is increasing in most advanced welfare countries. As school success is a well-established factor for improving children’s social, mental, and physical development, it represents a fundamental challenge for welfare states. To counteract this development, a variety of different methods and interprofessional collaborations have been developed recently. Despite this, there is little research to date on the roles social workers adopt in mitigating problematic absenteeism. This article presents a study that explored the roles of social workers in a newly developed and rapidly spreading Swedish method, School Social Teams. This study aimed to explore the roles adopted by school social workers in these teams and the core components associated with decreased problematic school absenteeism. The study found empirical evidence for three roles and six associated core components: the mediator (creating a communicative space and fostering an understanding of underlying problems); the advocate (establishing a student perspective and advocate at meetings); and the available adult (being available and having endurance). Compared with the existing literature, the mediator and advocate are more theoretically anchored in the literature, whereas the available adult role are related to stronger evidence for mitigating problematic school absenteeism. One conclusion is the importance of deliberate choices of various roles associated with school social work roles as its core components are related to different outcomes.

Three exemplars of Church and agency partnerships growing hope in uncertain times: a practical theology conversation

ABSTRACT Disruptive social, health and environmental changes are currently creating global uncertainty. In response, the two authors – an ordained Minister and a Christian social worker – undertook a multidisciplinary cooperative inquiry into the research question: With a focus on three exemplars, how do churches and associated care agencies create communities of hope in the current uncertain times? This research involved reflecting on three case studies, from two Anglican Dioceses of Australia. The case studies illustrate the practical and transformational nature of church and agency partnerships that can create Christian communities of hope. The key themes regarding creating communities of hope are sacrificial volunteering that promotes the well-being of others, engaging First Nations people’s leadership and local knowledge, and hearing the need and partnering to equally promote physical and spiritual flourishing. We propose creating inclusive, loving and kind communities of hope for every individual that holistically meets the needs of people, to be consistent with Christ’s ministry in these current times. Hope can grow when people have the option of an empowering community space where they can choose or be invited to explore questions regarding faith in Jesus and identity whilst having their practical needs fully met.

Da Exclusão à Expressão: Arte como Ferramenta de Inclusão e Empoderamento para Alunos com Necessidades Especiais

This study explores the profound relationship between art and inclusion in the education of students with special needs. Art transcends its role as a curricular discipline, becoming a powerful tool for the holistic development and empowerment of these students. By challenging stereotypes and promoting full participation, art offers a space for expression, communication, and learning for all, regardless of their needs. The research highlights the importance of adapting materials, activities, and environments, as well as the ongoing training of teachers, to make art accessible and meaningful for all students. Through flexibility, creativity, and sensitivity, teachers can create a welcoming and stimulating learning environment where every student feels valued and encouraged to explore their creative potential. Theories such as constructivism, the Social Model of Disability, and the Theory of Multiple Intelligences provide a solid theoretical foundation for the construction of inclusive pedagogical practices. The methodology adopted in this study is qualitative bibliographic research, which seeks to analyze and synthesize the knowledge produced on the relationship between art and inclusion in theeducation of students with special needs. The study concludes that art, when used intentionally and adapted, can be a powerful tool for promoting inclusion, holistic development, and empowerment of students with special needs. Art reveals itself as a path towards building a fairer, more equitable, and creative education, where every individual has the opportunity to flourish fully and contribute to the construction of a more humane and supportive world.

Age-friendly planning and play: the Study of Older Adult Play Spaces (SOAPS) observation tool

ABSTRACT The Study of Older Adult Play Spaces (SOAPS) observation tool assesses the environmental quality of public space for supporting older adult play. Naturalistic observations were conducted using the SOAPS tool at three play spaces in an age-restricted community in Florida, USA. We found that the most effective play spaces have opportunity for structured, cooperative, rule-based play with flexible surrounding space that allows users to adapt it to their own desires. Integrating these overarching design principles allows space for creativity and bespoke focused use, sedentary and vigorous physical activity, individualized and group socialization, and impromptu as well as organized activity.

Designing Compact Products for Communal Spaces to Support Communal Activities

The city of Bandung is dubbed as a creative city as a result of a process carried out by local communities engaged in the creative industry. One of the areas that is used as a forum by creative people in the city of Bandung is Laswee creative space. Areas and spots in Laswee can be used by various communities on a regular basis for exhibitions, seminars, workshops, event design, and other gathering events. However, from the various facilities and environments that have been provided by Laswee as a creative communal space, there are still some aspects that have not been fulfilled for. Based on the emphatize and define process in this study, it shows that the furniture used in Laswee has not supported creative communal activities. Based on this, this research aims to produce compact furniture designs that are able to maximize communal and creative activities.

When the state becomes a monster: post-coup education in Turkish cultural centers and new definitions of home

ABSTRACT After a coup attempt in 2016, thousands of members of the Hizmet or Gulen movement fled Turkey after the movement’s founder, Fethullah Gülen, was accused of being the mastermind behind the coup plot. This paper explores post-2016 educational shifts in U.S. based Turkish cultural centers that are largely run and attended by self-identified “Gülen sympathizers,” or “followers of Gülen.” Using a Grounded Theory approach, twenty-two participants were interviewed about their experiences following the attempted coup. Findings demonstrate that identification with Turkey has reduced, language learning has shifted to English, and Islamic content is taught for spiritual purposes but also to prepare youth for Islamophobia. Broader findings suggest that diasporic community spaces are counterspaces and the curriculum and activities provided in them is greatly dependent upon politics in the shared country of origin.

Figurative Narratives in Political Blogging: Linguocognitive Perspective

Introduction. Recent years have seen a significant shift towards the pervasive use of figurative narratives in mediated political communication. Narrative practices, previously analyzed exclusively within the framework of literary theory, have become a kind of «language games» of modern politicians in their communication with potential voters and opponents, debates and intricate negotiation processes. The article analyzes figurative narratives of the English- and German-speaking political blogs as a powerful linguistic-cognitive tool for mediated political communication. The purpose of the paper is deep semantic analysis of figurative narratives of political blogs, which, as the authors claim, is a promising direction of research due to the narrative nature of human reasoning. The paper argues that the skillful use of figurative narrative practices based on archetypical plots and cultural references makes it possible to manipulate the consciousness of the electorate to achieve political goals.Methodology and sources. Methodologically, the study is based on the cognitive-discursive approach to narrative analysis and the basic principles of the neural theory of language and metaphor.Results and discussion. Pointing to the manipulative effect of metaphorical framing in narrative, the authors attempt to present a holistic view of narrative as a tool for the formation of political views. The study is based on the premise that narrative employs the rich structure of human representations of events and actions, and the type of metaphor promoted in the narrative affects human understanding of events and the adoption of certain positions on an important public issue by readers of political blogs. The set of metaphors, politicians use, forms a special type of cultural narrative, which the authors interpret as an extended metaphorical narrative.Conclusion. Summarizing the effects of using metaphorically framed narratives in politics, the authors conclude that the narrative communication strategy in political blogging is a targeted impact on a communication partner by referring to various narrative plots; the modification or transformation of the potential and diversity of political narratives, as well as their effectiveness, speaks in favor of their use in domestic and foreign policy communication to contribute to a symmetrical communication space aimed at successful cooperation rather than confrontation.

Eurocentrism, Afrocentrism, Postcolonialism and Hybridity in Lorraine Hansberry’s A Raisin in the Sun and August Wilson’s Radio Golf

This paper is a thematic study dealing with a postcolonial critical view of Eurocentrism and Afrocentrism in Lorraine Hansberry’s A Raisin in the Sun (1959) and August Wilson’s Radio Golf (2005). In A Raisin in the Sun, Beneatha views Western cultures as superior and she ultimately opts for Afrocentrism. The spirit of Beneatha will be analysed with a focus on Frantz Fanon’s arguments against ‘négritude’ and Eurocentrism. Hansberry, through the voice of Mama Lena, calls for a union between the African and the American selves, as well as between the Western and the non-Western cultures. The issue of the oscillation between Eurocentrism and Africanness is shared by August Wilson in his last contemporary play where he exposes different facets and layers of identity. Contemporary black citizens have achieved their American dreams of collecting lucre, but they are still grappling between keeping faithful to their African heritage and cultural repertoire or adopting the Western way of life and distance themselves from their roots. This dilemma is best exemplified through Harmond and his wife Mame Wilks. Unlike Wilks, who imitates the prestigious way of life and looks for appearances and social status, Harmond crosses the boundaries of Eurocentrism and Afrocentrism and he tries to find a space for intercultural communication between the Western and the African cultures. The discussion part will relate the two plays to the recent events surrounding Floyd’s murder during the Covid-19 Pandemic. The aim is to examine the critical situation of blacks during crisis and to demonstrate that they are disproportionally targeted. The rationale for choosing a modern African-American text that explores contemporary Eurocentrism, Afrocentrism, assimilation, nativism, and decolonization is to show that race is a universal issue. The goal is to suggest hybridity as the best alternative for establishing a more humanitarian society where different races can be interwoven.

Empowering rural early childhood education through shared book reading and school-family-community partnerships

ABSTRACT The YuePu project was a community-based shared book-reading philanthropic project implemented in rural China. It is a literacy project utilized spaces in the rural community and invited parents and teachers to participate in free-of-charge shared book-reading activities with their children on the weekend. The reading activities and instructions were designed by literacy educators. The current qualitative study aimed to investigate, as demonstrated by YuePu, how teachers, parents and other stakeholders connect with each other as partners, creating a community-based project around children aged 3–6 in low-resource areas of China. The results showed that the YuePu implemented a school-family-community partnership to establish a supportive learning environment for children’s education and development. The findings provide implications for promoting community collaboration practices in other low-resource settings.

Rare yet relevant: Trondheim Cooperative Housing Association

ABSTRACT The paper explores the history of the housing cooperative Trondhjems Kooperative Boligselskap (TKB) [The Trondheim Cooperative Housing Association] in relation to societal and political currents in contemporary Norway. The article also discusses how the neighbourhood and its architectural layout were adapted to changing uses over a 100-year period. Established in 1922, the TKB is the second-oldest housing cooperative in Norway. An important distinction from similar cooperatives was its construction process, where members of the construction workers’ union built their own homes and set up a production unit to continue developing new projects. Two related movements contributed to the TKBB’s foundation: Firstly, the work of the Norwegian Association of Housing Reforms, and the Own Homes movement, both inspired by the Ebenezer Howard Garden City concept. Secondly, the labour movement, which initiated the construction of the TKB. The main actor behind the housing association was the Norwegian architect and planner, Sverre Pedersen. Consisting of 86 units in 11 duplexes and 16 quadruplexes, the timber houses are organized with small gardens and within larger green communal spaces. The article elaborates on how elements from the TKB’s organizational and architectural principles are relevant to developing social housing in Norway today.

Tailoring the morphological, optical, electrical, and random lasing properties of ZnO nanorods synthesized on metal surfaces for biosensor applications

Laser-based sensors are taking over their counterparts, fluorescence-based sensors, in the field of bioengineering and space communication due to their high amplification, narrow emission beam, low signal-to-noise ratio, and nonlinearity. In this work, we investigated the chemical growth of ZnO nanorods on different metal surfaces (Au, Pt, Ti, and Al) to serve as random laser mediums. Different analytical techniques were used to investigate the optical, electrical, and morphological properties of the fabricated devices. A lasing threshold of 27.68 mJ/cm² with a spectral width of 2.18 nm centered at 385.06 nm is observed when Ti is used as the growth surface. Al surface produces ZnO nanorods with a lasing threshold of 24.21 mJ/cm² and a spectral width of 1.81 nm. Growing ZnO nanorods on metal surfaces using the chemical bath deposition method paves the way for fabricating different random lasing-based biosensors.