Routing algorithm for the ground team in transmission line inspection using unmanned aerial vehicle

With the rapid development of robotics technology, robots are increasingly used to conduct various tasks by utility companies. An unmanned aerial vehicle (UAV) is an efficient robot that can be used to inspect high-voltage transmission lines. UAVs need to stay within a data transmission range from the ground station and periodically land to replace the battery in order to ensure that the power system can support its operation. A routing algorithm must be used in order to guide the motion and deployment of the ground station while using UAV in transmission line inspection. Most existing routing algorithms are dedicated to pathfinding for a single object that needs to travel from a given start point to end point and cannot be directly used for guiding the ground station deployment and motion since multiple objects (i.e., the UAV and the ground team) whose motions and locations need to be coordinated are involved. In this thesis, we intend to explore the routing algorithm that can be used by utility companies to effectively utilize UAVs in transmission line inspection. Both heuristic and analytical algorithms are proposed to guide the deployment of the ground station and the landing point for UAV power system change. A case study was conducted to validate the effectiveness of the proposed routing algorithm and examine the performance and cost-effectiveness --Abstract, page iii

Sustainable consumption: towards action and impact. : International scientific conference November 6th-8th 2011, Hamburg - European Green Capital 2011, Germany: abstract volume

This volume contains the abstracts of all oral and poster presentations of the international scientific conference „Sustainable Consumption – Towards Action and Impact“ held in Hamburg (Germany) on November 6th-8th 2011. This unique conference aims to promote a comprehensive academic discourse on issues concerning sustainable consumption and brings together scholars from a wide range of academic disciplines. In modern societies, private consumption is a multifaceted and ambivalent phenomenon: it is a ubiquitous social practice and an economic driving force, yet at the same time, its consequences are in conflict with important social and environmental sustainability goals. Finding paths towards “sustainable consumption” has therefore become a major political issue. In order to properly understand the challenge of “sustainable consumption”, identify unsustainable patterns of consumption and bring forward the necessary innovations, a collaborative effort of researchers from different disciplines is needed

Life satisfaction and self-concept of elderly living in congregate and non-congregate housing in Knox County, Tennessee

The purpose of this study was to evaluate the life satisfaction and self-concept of the elderly living in congregate housing versus those living in non-congregate housing in Knox County, Tennessee. Two instruments (Life Satisfaction Index-Z and The Tennessee Self-Concept Scale) were used to measure life satisfaction and self-concept of elderly living in the two different settings. A demographic data form was also used to capture information regarding the study participants. A stratified random sample of elderly was obtained from the 65 census tracts in Knox County. The study groups consisted of 235 elderly men and women living in congregate (N=208) and non-congregate (N=27) housing in Knox County, Tennessee. This study is a modified replication of the study conducted by Griffin in 1982 in Knox County, Tennessee. This study used the same sampling formula and census tracts, as well as some of the same congregate housing facilities as the previous study. The present study used six interviewers to collect data whereas the earlier investigation was conducted by direct interviews by the researcher. Also, a workshop was conducted for training purposes for the interviewers. Lastly, a sample of residents of an assisted living facility was included in this study for congregate housing. Statistical analysis was conducted using marginal statistics, Analysis of Variances, multiple comparisons, and Multiple Analysis of Variances. A T-test was performed to measure and compare life satisfaction of elderly in congregate and noncongregate settings. Analysis of Variances were used to determine if life satisfaction differed by gender, race, income and household size. A Multiple Analysis of Variance vm was used to determine if there was a difference in self-concept of elderly in congregate and non-congregate settings. Individual ANOVAs were also calculated to ascertain which of the self-concept subscales differed. Based on the study\u27 s findings, the following conclusions were made as they relate specifically to the four hypotheses: 1. There is no significant difference in life satisfaction of elderly residing in congregate and non-congregate housing in Knox County, Tennessee. 2. There is a significant difference in life satisfaction of elderly based on income, but not on race, gender or household size in Knox County, Tennessee. 3. Elderly living in non-congregate housing had a higher level of self-concept of family than elderly living in congregate housing. 4. Self-Concept Subscales differed among elderly and are as follows: a. Self-Criticism Self-Concept: Household size was significant with elderly having a higher level of self-concept as the household size increases. b. Physical Self-Concept: (1.) Elderly living with more than two other people had a statistically significant higher mean; (2.) Whites had a higher level of self-concept than blacks; and females had a higher self-concept than males. c. Moral Self-Concept: Whites had a significantly higher level of self-concept than blacks; females had a higher level of self-concept than males; and those elderly with lower incomes had a higher level of self-concept than those with higher incomes. d. Personal Self-Concept: No significant differences were observed. IX e. Family Self-Concept: Whites had a higher level of self-concept than blacks; and elderly with lower incomes had a higher level of self-concept than those with higher incomes. f. Social Self-Concept: Whites had a higher level of self-concept than blacks; and females had a higher level of self-concept than males

Human experience in the natural and built environment : implications for research policy and practice

22nd IAPS conference. Edited book of abstracts. 427 pp. University of Strathclyde, Sheffield and West of Scotland Publication. ISBN: 978-0-94-764988-3

Healthy Offices: Conceptualizing Healthy Activity-based Offices

This thesis explores the interrelations between the design characteristics of activity-based offices, users’ perceptions of them, and users’ sense of coherence. The goal is twofold: (i) contribute to conceptualizations of healthy activity-based offices and (ii) facilitate practical use of the sense of coherence theory for office designers. Most research into healthy offices has focused on harm-causing factors (pathogenic aspects) while overlooking the health-promoting design characteristics in activity-based offices (salutogenic aspects). This thesis is a response to the call for a paradigm shift and explores the particular design characteristics of activity-based offices that promote health, drawing on the salutogenic approach and sense of coherence theory.The thesis builds on a literature review and two mixed methods case studies on activity-based offices. Drawing on the sense of coherence framework, three types of design characteristics were identified: (i) those that promote a clear understanding of office environments, (ii) those that enhance users\u27 access to relevant resources, and (iii) those that evoke meaning for users to cope with stressors. These characteristics and the perceptions of them are interrelated meaning that they can have multiple impacts on users’ sense of coherence. The findings also highlighted temporal changes in users’ perceptions, indicating that novelties of the new office wore off and the initial problems observed in the office environment worsened. Moreover, activity-based offices were not always perceived as intended because of suboptimal design solutions and contextual factors. In conclusion, there are no definitive answers to how to design healthy activity-based offices. Activity-based offices are complex environments and consist of many interacting aspects including the design characteristics, individuals’, and their work-related prerequisite as well as organization-related factors that influence users’ perceptions and their sense of coherence. The framework developed in this thesis may contribute to better-informed discussions about designing for sense of coherence.The thesis suggests that healthy activity-based offices should be viewed as a "moving project" that develops over time through experimentation and adaptation, with management’s involvement. Thus, a healthy activity-based office provides users resources and opportunities to codesign an environment that enables them (i) build meaningful social relationships, (ii) manage visual and acoustic distractions, (iii) read and understand workspaces, and (iv) receive support from management in their daily work

Volume 88, Issue 13 (2015)

https://digitalcommons.osgoode.yorku.ca/obiter_dicta/1028/thumbnail.jp

The Experience of Displacement and Social Engineering in Kola Saami Oral Histories

The thesis examines people’s experiences of Soviet-time, state-initiated displacement and (re)emplacement on the Kola Peninsula as well as the consequences of these developments. Sources show that Saami communities bore the brunt of these processes. The work seeks to draw for the first time a holistic picture of the social transformation among the Kola Saami, while nevertheless respecting the reality of mixed and multiple ethnic belongings as well as other categories of identity in the region. Tapping extensive fieldwork by the author, the research systematically identifies, analyses and contextualises the processes and consequences of displacement as one of the most profound social transformations of the twentieth century in the Arctic. The consequences discussed include a chronic housing shortage, changed gender relations, skewed dynamics in boarding schools, self-harming behaviour, and social rifts that persist to this day. Perspectives characteristic of the state are juxtaposed with grassroots experiences. This work is in many ways a historical anthropology of suffering, one laying bare mechanisms of scapegoating and social exclusion. Yet traumatic events are dealt with in ways acknowledging that victims can be simultaneously agents who accommodate, subvert and resist. The stages and consequences of displacement are contextualised within the larger frame of social engineering undertaken by modern nation-states across the circumpolar world, thus relativising Soviet–Western dichotomies. Conceived as a historical-anthropological inquiry, the study draws on empirical materials produced and gathered using a combined approach of open-ended biographical interviewing, participant observation and archival research. Ethical questions prompted by this co-productive approach with a long-term commitment to field partners are taken up as an additional strand of the research. The main methodological principle of this thesis is that the production and the analysis of materials should be phenomenologically driven and rooted in a radically interpretive, non-positivist approach. Embracing this commitment, the work tries to show that the common — but mostly unspoken — link between oral history and anthropology lies in phenomenological philosophy as the study of experience. Making this link more explicit is an important and long overdue task, because xperience is the pivot between the universal and the singular.Väitöskirja keskittyy ihmisten kokemuksiin neuvostoajasta ja valtion toimeenpanemasta väestön siirrosta ja takaisin asuttamisesta Kuolan niemimaalla sekä siihen, mitä tästä kaikesta on seurannut. Lähteiden perusteella saamelaiset ovat kärsineet prosessista eniten. Väitöskirjassa pyritään ensimmäistä kertaa luomaan holistinen kuva Kuolan saamelaisten kokemasta sosiaalisesta muutoksesta unohtamatta alueen etnisen diversiteetin ja muiden identiteettikategorioiden realiteetteja. Laajan kenttätyön pohjalta tutkija identifioi, analysoi ja kontekstualisoi siirtoprosesseja ja niiden seurauksia yhtenä arktisen alueen vaikuttavimmista sosiaalisista transformaatioista 1900-luvulla. Tekijän pohtimia seurauksia ovat muun muassa jatkuva asuntopula, sukupuolten välisten suhteiden muutos, sisäoppilaitosten vääristyneet käytännöt, itsetuhoinen käytös ja vielä tänä päivänä vallitseva sosiaalinen epätasa-arvo. Tutkimuksessa vertaillaan valtiollisia lähtökohtia ja ruohonjuuritason kokemuksia. Se on eräänlainen kärsimyksen antropologinen kuvaus, jossa syitä vieritetään muiden niskaan ja ihmiset päätyvät yhteiskunnan ulkopuolelle. Traumaattisia tapahtumia silti käsitellään pitäen mielessä, että uhrit voivat samalla olla mukautuvia, mitätöiviä ja vastustavia toimijoita. Siirtojen vaiheita ja seurauksia verrataan nykyajan kansallisvaltioiden sosiaaliseen suunnitteluun kaikkialla sirkumpolaarisessa maailmassa, mikä antaa mittasuhteet neuvostojärjestelmän ja länsimaisen järjestelmän väliselle dikotomialle. Tutkimuksen lähestymistapa pohjautuu historialliseen antropologiaan ja sen empiirinen materiaali on tuotettu ja kerätty avointen biografisten haastattelujen, osallistujahavaintojen ja arkistotutkimuksen keinoin. Tämän pitkään sitoutumiseen perustuvan, yhteistuotannollisen metodin esiin nostamat eettiset kysymykset poikivat ylimääräisen tutkimushaaran. Väitöskirjan metodologinen pääperiaate on, että materiaalia tulee tuottaa ja analysoida fenomenologisista lähtökohdista ja lähestymistavan tulee olla vahvasti tulkinnallinen ja ei-positivistinen. Tätä silmällä pitäen tutkimus pyrkii osoittamaan, että suullisen historian ja antropologian yhdistävä – joskin vaiettu – yhteys juontuu kokemuksen tutkimukseen osana fenomenologista filosofiaa. Tämä yhteys tulee viimeinkin saada selkeämmin esille, koska juuri kokemus on universaalin ja erityisyyden keskipisteessä

User experiences with flexible offices

Different office types provide the preconditions for distinct user experiences. However, research evidence on how users appraise flexible offices such as activity-based or combi offices is not as abundant as in the case of the more traditional open-plan and cell offices. Furthermore, the available literature shows discrepant results between flexible offices. The main difference between traditional and flexible offices is that the design of the latter is intended for users to switch between different shared spaces and workstations oriented to support different activities, needs and preferences. This office design may offer new opportunities and challenges for users as their experiences at work may be influenced by design qualities (or constellations of them) that are not present in traditional offices. I study the experiences of users with flexible offices because I want to understand the influences that the design qualities of office artefacts and spaces have on such experiences, as well as their design implications. In addition, I utilise the acquired knowledge to explore design opportunities for positive user experiences with flexible offices. In this regard, the research angle adopted builds on a UX theoretical background and a practical approach with multiple user studies in real office environments. The findings show that user experiences with flexible offices are influenced by interrelated design qualities of the spaces and artefacts in use, rather than isolated qualities. These (tangible and intangible) qualities define the nature of an artefact, a space, or constellations of them that users experience, for instance the qualities of an office chair vs. a meeting room. Experiences are subjective, but relate to both individual and collective experiences, for example using an ergonomic workstation vs. sharing such workstations. The findings also suggest that designing for user experiences with flexible offices is a highly complex endeavour, and that emphasis should be placed on designing for the experiences of pleasure, community, autonomy, purpose, and control over the environment. Utilising this knowledge to develop and test research prototypes allowed for a richer understanding of the experiential process and its relation to more systemic aspects such as the context of use or the temporality of experiences. Derived from these research activities and their findings, I present in this thesis the tentative SEEX (Stimuli-Evaluation-EXperiential outcome) model of how user experiences take place. This thesis contributes knowledge on theoretical and practical levels for academics and practitioners to continue studying office user experiences from a UX perspective, support informed decisions in the planning, operation, and evaluation of offices, and explore design opportunities for office environments