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[en] Results are given of a study on the consistency between 'integral' and 'differential' cross sections data for four benchmark neutron spectra and 36 neutron reactions of importance for reactor neutron metrology. The energy dependent cross section data and their uncertainty data are obtained from the ENDF/B-V dosimetry file. The reactions have been considered with respect to the following quantities: 1. the precision of the averaged cross sections, for a specified spectrum; 2. the discrepancy between the measured and the calculated average cross section values; 3. the consistency between the measured and calculated average cross section values, described by the chi2-parameter. It was possible to take into account the available cross section covariance information present in the ENDF/B-V dosimetry file. Covariance information on the benchmark flux density spectra was not taken into account in this study
[en] In this paper, we prove that the pairwise orthogonal primitive idempotents of generic cyclotomic Birman-Murakami-Wenzl algebras can be constructed by consecutive evaluations of a certain rational function. In the Appendix, we prove a similar result for generic cyclotomic Nazarov-Wenzl algebras. A consequence of the constructions is a one-parameter family of fusion procedures for the cyclotomic Hecke algebra and its degenerate analogue.
[en] A laboratory study with Selenastrum capricornutum has shown that the interpretation of C-14 uptake data can be influenced by the method of data presentation. The expression of C-14 data as rate of uptake rather than total uptake is more representative of the algal stimulation potential of the medium being investigated. Also, data expressed as a rate of uptake based on a four-hour incubation period are more sensitive to changes in algal activity than those based on rate of uptake for long-term incubation periods. Several examples are discussed where data were initially interpreted as showing stimulation, although conversion of the data to rate of uptake shows a lack of stimulation. (Auth.)
[en] Accurate QED evaluations of the interelectron interaction for low lying two- and three-electron configurations for ions with nuclear charge numbers 60≤Z≤93 are presented. The three-photon interaction is also partly taken into account. The results are compared with available experimental data and with different calculations. A detailed investigation of the behaviour of the energy levels of the configurations 1s1/22s1/21S0, 1s1/22p1/23P0 near the crossing points Z=64 and Z=92 is carried out. The determination of the crossing points is important for the future experimental search for parity non-conserving effects in highly charged ions
[en] Highlights: • The present smart pipet tip enables in situ evaluation of solution characteristics. • Firstly, the electrical charges inside the pipet tip is advantageously utilized. • Multi-parametric effect on liquid-solid triboelectricity is effectively separated. • The morphology of nanoparticles can be in situ predicted by using the smart pipet tip. Pipet tips are commonly utilized laboratory tools to transfer adjustable volume of liquid in various fields of chemistry, biology and physics. Recently, we have reported that the ordinary pipetting procedure always involves spontaneous liquid-solid contact electrification, resulting in generation of net electrical charges on the dispensed solution and the inner surface of the polymeric pipet tip. In this study, a concept of a smart pipet tip is proposed to evaluate the electrolyte concentration of the dispensed solution by use of spontaneously generated electric signals during the ordinary pipetting procedure. The smart pipet tip possessing triboelectricity and thermoelectricity detecting modules is advantageous as it performs in situ evaluation of solution characteristics without any subsidiary solution handling process. The spontaneously generated electric signals are intensively investigated with the theoretical analyses. The proof-of-concept demonstration of the present smart pipet tip is shown for in situ prediction of morphology of nanoparticles during their synthetic reaction, which critically determines their catalytic activity.
[en] The International Neutrino Commission met during the conference to review NEUTRINO 2010, to discuss the format of the conference series, and to consider proposals for future conferences.
[en] The other form of fractional oscillator equation comparing to the widely discussed one is ushered in. The properties of vibration of two fractional oscillators are discussed under the influence of different initial conditions. The interpretation of the characteristics of the fractional oscillators using different method is illustrated. Based on two fractional oscillator equations, two linked bodies and the continuous system are studied.
[en] Nuclear theory is used increasingly to supplement and extend the nuclear data base that is available for applied studies. Areas where theoretical calculations are most important include the determination of neutron cross sections for unstable fission products and transactinide nuclei in fission reactor or nuclear waste calculations and for meeting the extensive dosimetry, activation, and neutronic data needs associated with fusion reactor development, especially for neutron energies above 14 MeV. Considerable progress has been made in the use of nuclear models for data evaluation and, particularly, in the methods used to derive physically meaningful parameters for model calculations. Theoretical studies frequently involve use of spherical and deformed optical models, Hauser-Feshbach statistical theory, preequilibrium theory, direct-reaction theory and often make use of gamma-ray strength function models and phenomenological (or microscopic) level density prescriptions. The development, application and limitations of nuclear models for data evaluation are discussed in this paper, with emphasis on the 0.1 to 50 MeV energy range. (Auth.)
[en] Orthogonal or symplectic Yangians are defined by the Yang–Baxter RLL relation involving the fundamental R matrix with or symmetry. Simple L operators with linear or quadratic dependence on the spectral parameter exist under restrictive conditions. These conditions are investigated in general form.