69 research outputs found
Radio Dispatching Communications During a Mass Event - A Case Studies of the âLednica 2000â Youth Meetings
In paper we present two case studies of the wireless dispatching communications. The first one aims at providing voice service and FM radio broadcasting during mass events of the âLednica 2000â Youth Meetings. The presentation is supported by over 20-year experience in organization of this event every year. In the second use study we analyze evolution of the dispatching networks in the energy sector. These networks can be used by PPDR agencies in the situation of disasters and other crisis occurrences
Applicants reactions to selection procedures : prediction uncertainty as a moderator of the relationship between procedural fairness and organizational attractiveness
Prozedurale Fairnessbewertungen beeinflussen in starkem MaĂe Einstellungen und das Verhalten von Personen gegenĂŒber Organisationen. Dies gilt auch fĂŒr die Bewertung von Personalauswahlverfahren. Personen, die ein Auswahlverfahren als fair einschĂ€tzen, bewerten die betreffende Organisation auch als attraktiveren Arbeitgeber. Die vorliegende Studie untersuchte, in wieweit dispositionale Vorhersageunsicherheit auf Seiten der Bewerbenden diesen Zusammenhang verstĂ€rkt. Die Ergebnisse der Studie demonstrieren in AbhĂ€ngigkeit von der Auswahlentscheidung unterschiedliche moderierende EinflĂŒsse von Vorhersageunsicherheit auf den Zusammenhang zwischen prozeduraler Fairnessbewertung und organisationaler AttraktivitĂ€t. Implikationen fĂŒr die Forschung zum Einfluss von Fairnessbewertungen sowie fĂŒr die Anwendung im organisationalen Kontext werden diskutiert
Radio Dispatching Communications During a Mass Event - A Case Studies of the âLednica 2000â Youth Meetings
In paper we present two case studies of the wireless dispatching communications. The first one aims at providing voice service and FM radio broadcasting during mass events of the âLednica 2000â Youth Meetings. The presentation is supported by over 20-year experience in organization of this event every year. In the second use study we analyze evolution of the dispatching networks in the energy sector. These networks can be used by PPDR agencies in the situation of disasters and other crisis occurrences
Applicantsâ reactions to selection procedures â Prediction uncertainty as a moderator of the relationship between procedural fairness and organizational attractiveness
Procedural fairness judgments strongly influence peoplesâ attitudes and behaviors towards organizations. This is also true for the evaluation of selection systems. People who perceive a selection procedure as fairer judge the respective organization as a more attractive employer. The present study examined whether this relationship is strengthened by applicantsâ prediction uncertainty. Results demonstrate a differential moderating effect of prediction uncertainty on the relationship between procedural fairness judgments and organizational attractiveness, depending on the outcome of the application. Implications for research on fairness judgments as well as applications in organizational settings are discussed.
Distribution of the sheet current in a magnetically shielded superconducting filament
The distribution of the transport current in a superconducting filament
aligned parallel to the flat surface of a semi-infinite bulk magnet is studied
theoretically. An integral equation governing the current distribution in the
Meissner state of the filament is derived and solved numerically for various
filament-magnet distances and different relative permeabilities. This reveals
that the current is depressed on the side of the filament adjacent to the
surface of the magnet and enhanced on the averted side. Substantial current
redistributions in the filament can already occur for low values of the
relative permeability of the magnet, when the distance between the filament and
the magnet is short, with evidence of saturation at moderately high values of
this quantity, similar to the findings for magnetically shielded strips.Comment: 11 pages, 5 figures; submitted to Physica
Strong reduction of ac losses in a superconductor strip located between superconducting ground plates
The problem of calculating the ac losses in a superconductor strip with a
transport current placed inside superconducting environments is studied
analytically in the frame of the critical state model. Exact results obtained
by the method of images for the commonly employed flat ground plates are used
to derive power losses and, consequently, the nonlinear resistance depending on
the ac frequency, current amplitude and the distance to the ground plates. The
resistance is strongly reduced when the distance between the strip and the
shields becomes small.Comment: 10 pages, 3 figure
Magneto-optical investigations of Ag-sheathed Bi-2223 tapes with ferromagnetic shielding
An increase in the critical current and suppression of AC losses in
superconducting wires and tapes with soft magnetic sheath have been predicted
theoretically and confirmed experimentally. In this work we present the results
of magneto-optical investigations on a series of Ag-sheathed Bi-2223 tapes with
Ni coating. We visualize distributions of magnetic field at increasing external
field and different temperatures, demonstrating a difference between the flux
propagation in the superconductor with Ni rims and a reference sample without
Ni coating.Comment: 2 page
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Populations of doubled haploids for genetic mapping in hexaploid winter triticale.
To create a framework for genetic dissection of hexaploid triticale, six populations of doubled haploid (DH) lines were developed from pairwise hybrids of high-yielding winter triticale cultivars. The six populations comprise between 97 and 231 genotyped DH lines each, totaling 957 DH lines. A consensus genetic map spans 4593.9 cM is composed of 1576 unique DArT markers. The maps reveal several structural rearrangements in triticale genomes. In preliminary tests of the populations and maps, markers specific to wheat segments of the engineered rye chromosome 1R (RM1B) were identified. Example QTL mapping of days to heading in cv. Krakowiak revealed loci on chromosomes 2BL and 2R responsible for extended vernalization requirement, and candidate genes were identified. The material is available to all parties interested in triticale genetics
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