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Abstract in Undetermined In this paper, we investigate the roles of different diversity mechanisms in two recently proposed six-port MIMO antennas using the effective degree-of-freedom concept. In particular, we confirm that angle and polarization diversities are indeed the dominant diversity mechanisms for the compact antenna that is designed to replicate the characteristics of the ideal co-locat

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Turbulent flow and thermal field were predicted in a square-sectioned 180° bend at a Reynolds number of 56000. Suga's low-Re cubic k-ε model [5-6] and the RSM [7-8] were used. The results were compared to experimental data [1]. Identical inlet boundary conditions were used in both cases. The inlet length impact on the flow-heat transfer in the bend was investigated. The velocities are higher near

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The properties of K(pi) = 1+ states in deformed even-even rare-earth nuclei have been investigated within the Quasiparticle Random Phase Approximation (QRPA). The B(M1) spectrum and the differential cross section for electron scattering have been calculated and are seen to be consistent with the interpretation that the experimental 1+ states first considered to be a scissors mode, actually corresp

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OBJECTIVE: To study cause specific mortality and cancer morbidity in workers exposed to the dust of grinding materials, grinding agents, and stainless steel, especially with regard to a possibly increased risk of respiratory, stomach, and colorectal cancer. METHODS: Retrospective cohort study, using reference cohorts of blue collar workers and population rates for comparison. The exposed cohort c

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Increasing international and, often, cross-cultural contacts and exchanges in all spheres of human activity have created a world in which the access to other, alternative knowledge pools seems to be easier than ever before. Science in particular, or, more generally, fields of knowledge creation, are considered to have greatly benefited from this global inter-connectedness. At the same time, we can

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This paper deals with overload control algorithms that should see to that throughput in an service control points (SCP) is kept high, also under severe overload conditions. A couple of basic overload control schemes like random admittance, call gapping and window flow control are examined. We stress that the algorithms should both be efficient and show fairness among a number of SSPs logically con