4,921 research outputs found

    Materials interactions between the thermoelectric converter and the 5kwe reactor system

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    The integration of a compact thermoelectric converter with a 5-kwe reactor system is described. Material interaction uncertainties study is also presented. This includes degradation of the required austenitic - refractory metal transition joint during operation at high temperatures; loss of corrosion resistance; embrittlement by the presence of hydrogen; and loss of design margin by transport of interstitial elements. Analysis and limited experimental evidence indicate that these potential materials interactions can be adequately controlled. Group 5-2 refractory metals can be utilized without unacceptable adverse effect on system reliability

    Prospek Pengembangan Kapasitas Anak yang Berhadapan dengan Hukum di Lembaga Pembinaan Khusus Anak Kelas II Jayapura Propinsi Papua

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    Abstrak: Penelitian ini membahas pengembangan kapasitas dan potensi anak yang berhadapan dengan hukum saat dibina di Lembaga Pembinaan Khusus Anak (LPKA) Kelas II Jayapura. Prospek pengembangan kapasitas dan potensi anak yang berhadapan dengan hukum tersebut juga dikaitkan dengan keberadaan sistem sumber yang ada di lembaga pembinaan tersebut. Lembaga pembinaan yang didirikan di tahun 2017 ini berlokasi di Distrik Abepura dengan menggunakan sebagian fasilitas dari Lapas (Lembaga Pemasyarakatan) Kelas II Abepura. Total informan pada penelitian ini adalah dua belas orang dengan enam orang informan diantaranya adalah anak yang berhadapan dengan hukum. Pengumpulan data dilakukan selama bulan Agustus hingga pertengahan September 2019. Dinyatakan bahwa hasil temuan pertama dalam penelitian ini adalah anak yang berhadapan dengan hukum yang menggunakan sumber kegiatan pembinaan di LPKA Kelas II Jayapura untuk pencapaian cita-citanya adalah melalui kegiatan PBB (Pasukan Baris Berbaris), keterampilan membuat gelang dan cincin, bermain bola dan bulutangkis, bingkai foto dari koran, ibadah, serta fasilitas Taman Bacaan. Hasil temuan kedua dalam penelitian ini menyatakan bahwa sistem sumber di dalam  LPKA Kelas II Jayapura yang disediakan adalah melalui unsur kelembagaan LPKA dan juga kegiatan pembinaannya. Terdapat prospek yang besar untuk menggunakan sistem sumber secara kelembagaan di masa mendatang karena anak yang berhadapan dengan hukum di LPKA ini masih berfokus pada penggunaan sistem sumber kegiatan pembinaan. Kata kunci: Anak yang berhadapan dengan hukum, Kapasitas, LPKA Kelas II Jayapura, Pembinaan

    Hybridizing the institutional logics of performance improvement and budgetary stewardship in English and Welsh local government

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    This article introduces and applies a three-stage process to show how advocates of the conflicting institutional logics of budgetary stewardship and performance improvement in English and Welsh local authorities created a hybrid logic. Drawing on interviews with officers in 25 councils, it demonstrates how cooperative working environments meant that hybridization proceeded largely 'peacefully', in contrast to previous studies of more competitive contexts that found it occurs on a 'battlefield'. We argue that the nature of conflict within the hybridization process, along with the power dynamics between representatives of different logics, shapes the nature and sustainability of the resulting hybrid

    Celebrating three decades of stereolithography

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    Magnetically controlled current flow in coupled-dot arrays

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    Quantum transport through an open periodic array of up to five dots is investigated in the presence of a magnetic field. The device spectrum exhibits clear features of the band structure of the corresponding one-dimensional artificial crystal which evolves with varying field. A significant magnetically controlled current flow is induced with changes up to many orders of magnitude depending on temperature and material parameters. Our results put forward a simple design for measuring with current technology the magnetic subband formation of quasi one-dimensional Bloch electrons.Comment: 9 pages, 5 figure

    Equity of Inpatient Health Care in Rural Tanzania:\ud A Population- and Facility-Based Survey

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    To explore the equity of utilization of inpatient health care at rural Tanzanian health centers through the use of a short wealth questionnaire.Methods: Patients admitted to four rural health centers in the Kigoma Region of Tanzania from May 2008 to May 2009 were surveyed about their illness, asset ownership and demographics. Principal component analysis was used to compare the wealth of the inpatients to the wealth of the region’s general population, using data from a previous population-based survey. Among inpatients, 15.3% were characterized as the most poor, 19.6% were characterized as very poor, 16.5% were characterized as poor, 18.9% were characterized as less poor, and 29.7% were characterized as the least poor. The wealth distribution of all inpatients (p < 0.0001), obstetric inpatients (p < 0.0001), other inpatients (p < 0.0001), and fee-exempt inpatients (p < 0.001) were significantly different than the wealth distribution in the community population, with poorer patients underrepresented among inpatients. The wealth distribution of pediatric inpatients (p = 0.2242) did not significantly differ from the population at large. The findings indicated that while current Tanzanian health financing policies may have improved access to health care for children under five, additional policies are needed to further close the equity gap, especially for obstetric inpatients.\u

    Third edge for a graphene nanoribbon: A tight-binding model calculation

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    The electronic and transport properties of an extended linear defect embedded in a zigzag nanoribbon of realistic width are studied, within a tight binding model approach. Our results suggest that such defect profoundly modify the properties of the nanoribbon, introducing new conductance quantization values and modifying the conductance quantization thresholds. The linear defect along the nanoribbon behaves as an effective third edge of the system, which shows a metallic behavior, giving rise to new conduction pathways that could be used in nanoscale circuitry as a quantum wire.Comment: 6 pages, 6 figures. Two new figures and a few references adde
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