43 research outputs found

    Continuous spin reorientation in antiferromagnetic films

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    We study anisotropic antiferromagnetic one-layer films with dipolar and nearest-neighbor exchange interactions. We obtain a unified phase diagram as a function of effective uniaxial D_e and quadrupolar C anisotropy constants. We study in some detail how spins reorient continuously below a temperature T_s as T and D_e vary.Comment: 3 LaTeX pages, 3 eps figures. Submitted to JMMM on 25 May 2006. Accepted on 21 July 200

    Polygon Interface Analysis: A Concept For Analyzing Production Site Interactions In Urban Areas

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    Urban production bears the potential to not only reduce the negative impacts of production processes and global supply chains but also to generate a positive contribution to society and the environment when integrated symbiotically into the urban context. However, especially in urban areas, production is often associated with negative impacts on the surrounding environment. Therefore, the interactions between producing companies and their environment need to be considered and analysed. Hence, we derive a conceptual model that allows the exploitation of the potentials of urban locations for production by focusing on the interfaces between urban production and the urban environment. For this purpose, the Polygon Interface Analysis [P.I.A.] is introduced. It makes use of the principle of a Rubik's Cube or a Caesar Cipher by altering layers for matchmaking and integrates the business, city and interface perspective into an applicable analysis approach. To conceptualize this model existing approaches from the fields of factory planning and strategy development are examined in regard to their suitability for applying those for a location analysis of urban factories. Based on this, a suggestion for the application of the P.I.A. is given. The application of the model allows for the improvement of manufacturing integration in urban environments by supporting factory planning decisions, production system design, as well as location and site analysis for urban production

    Nuclear spin driven quantum relaxation in LiY_0.998Ho_0.002F_4

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    Staircase hysteresis loops of the magnetization of a LiY_0.998Ho_0.002F_4 single crystal are observed at subkelvin temperatures and low field sweep rates. This behavior results from quantum dynamics at avoided level crossings of the energy spectrum of single Ho^{3+} ions in the presence of hyperfine interactions. Enhanced quantum relaxation in constant transverse fields allows the study of the relative magnitude of tunnel splittings. At faster sweep rates, non-equilibrated spin-phonon and spin-spin transitions, mediated by weak dipolar interactions, lead to magnetization oscillations and additional steps.Comment: 5 pages, 5 eps figures, using RevTe

    Mittelzügel vs Seitenzügel - wer streckt wen? Neues vom Streckapparat

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    Analisis ideologi

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    Rural Nursing: Concepts, Theory, and Practice, Fourth Edition

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    The fourth edition of the only text to focus on nursing concepts, theory, and practice in rural settings continues to provide comprehensive and evidence-based information to nursing educators, researchers, and policy-makers. The book presents a wealth of new information that expands upon the rural nursing theory base and greatly adds to our understanding of current rural health care issues. It retains seminal chapters that consider theory and practice, client and cultural perspectives, response to illness, and community roles in sustaining good health. Authored by contributors from the United States, Canada, and Australia, the text examines rural health issues from a national and international perspective.https://openprairie.sdstate.edu/con_books/1000/thumbnail.jp

    Code generation for sta architecture

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    Abstract. This paper presents a novel compiler backend which generates assembly code for Synchronous Transfer Architecture (STA). STA is a Very Long Instruction Word (VLIW) architecture and in addition it uses a non-orthogonal Instruction Set Architecture (ISA). Generating efficient code for this architecture needs highly optimizing techniques. The compiler backend presented in this paper is based on Integer Linear Programming (ILP). Experimental results show that the generated assembly code consumes much less execution time than the code generated by traditional ways, and the code generation can be accomplished in acceptable time.

    Collaborating With Rural Practice Partners to Provide a Primary Care Experience for Prelicensure Nursing Students

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    ABSTRACT Background: Prelicensure nursing education has generally emphasized acute care; however, as primary care changes in the United States, academia must transform. The national call for transforming primary care requires innovation in the education of prelicensure nursing students. Problem: To ensure future RNs can function in the primary care setting and assume enhanced roles within the interprofessional team, prelicensure nursing students need to be exposed to primary care. A key barrier to providing this essential education is the lack of partnerships with primary care facilities. Approach: The purpose of this project was to collaborate with rural practice partners to provide a primary care clinical experience for prelicensure nursing students. Outcomes: Collaboration between academic-practice partners to develop a clinical experience for prelicensure nursing students allowed exposure to the role of RNs in rural primary care. Conclusions: By sharing the process for planning the clinical experience, other interested academic institutions may replicate similar opportunities

    Low Temperature Magnetic Properties of the Bimetallic Compounds [Co(C₅H₅NO)₆](MX₄) (M = Co²⁺, Zn²⁺; X = Cl⁻, Br⁻)

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    We have measured the specific heat and suceptibility of the compounds [Co(C5H5NO)6] (MX4) (M = Co, Zn; X = Cl, Br), which are all isostructural and monoclinic. The data show that two magnetic subsystems are present in the Co/Co compounds. The Co2+ ions on the octahedral positions of the chlorine compounds exhibit antiferromagnetic ordering at Tc = 0.95(1) K, the Co2+ ions on the tetrahedral positions remaining paramagnetic down to at least 0.04 K. The paramagnetic ions appear to experience two different molecular fields from the ordered Co2+ ions. The behaviour of the bromine compounds is similar, the ordering temperature being about 0.65 K. Both chlorine compounds are apparently canted antiferromagnets. The bromine compounds show compensated antiferromagnetism. © 1984
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