Surface hardening of stainless steel by runaway electronspreionized diffuse discharge in air atmosphere

In this paper we present microhardness measurements of stainless steel surface treated by diffuse discharge in air atmosphere. The cleaning from carbon in comparison to the initial sample was observed at a depth exceeding 20 nm. The oxygen concentration was also increased in comparison to that in the initial sample at a depth of up to about 50 nm. Comparative analysis shows that after treatment the microhardness of stainless steel surface increased in 2 times due to interaction of near-surface layers with product of plasma chemical reactions produced in diffuse discharge

AN ANALYSIS OF REGIONAL ECONOMIC GROWTH AND CAPITAL EXPENDITURE ON SELF-GENERATED REVENUE IN SUPIORI REGENCY

The purpose of this research is to evaluate the effect of the economic growth and the capital expenditures on self-generated revenue of Supiori Regency during 2008 to 2014 partially and simultaneously. This research was a causative research aims to test hypotheses and explain the phenomenon in relation of the research variables. Data collected was from secondary sources such as government publication documents comprise of economic growth information, the amount of capital expenditures, and the region self-generated revenue. The population in this study was Audited Budget Realization Report and economic growth of Supiori Regency and Papua Province from 2008 to 2014. While the sample consisted of economic growth information based on accepted prices, capital expenditures and self-generated revenue of Supiori Regency and Papua province from 2008 to 2014. All these data being analyzed used a classical assumption test and path analysis. According to the analysis, the results showed that the economic growth of Supiori Regency has a positive and significant effect on self-generated revenue of Supiori partially and simultaneously in 2008 to 2014. While the allocation for capital expenditures from 2008 to 2014 has positive effect but not significant on the regional self-generated revenue in Supiori partially and simultaneously. Also, the allocation of capital expenditure and the economic development from 2008 to 2014 have positive but not significant effect on the regional self-generated revenue in Supiori partially and simultaneously. As can be seen from the pattern of correlation from each variables, this study concluded that the capital expenditures was not the intervening variables to the progress of the region self-generated revenue in Supiori Regency. Keywords : Self-Generated Revenue, Economic Growth, Capital Expenditur

Evidence for a collinear easy-plane magnetic structure of multiferroic EuF e3(B O3)4: Spectroscopic and theoretical studies

© 2016 American Physical Society.We performed high-resolution polarized optical transmission spectroscopy and theoretical studies of multiferroic EuFe3(BO3)4 single crystals in the three phases: paramagnetic R32(T>Ts=84K) and P3121(Ts>T>TN=34K), and antiferromagnetic (T<TN) ones. The analysis of the spectra reveals interesting details of the magnetic structure, namely, a collinear arrangement of the iron magnetic moments along the C2 symmetry axis in the ab crystallographic plane of EuFe3(BO3)4 below TN. Spectral signatures of the phase transitions and the spin-phonon interaction are observed and discussed. Reliable crystal-field and exchange-interaction parameters are obtained and used to model the magnetic susceptibility of the compound. The results of detailed calculations of the electric polarization of EuFe3(BO3)4 in the R32 phase are presented, and mechanisms of the magnetoelectric response are discussed. We detect a strong effect of impurities (that enter the crystal from a flux in the course of the crystal growth) on the structural phase-transition temperature and demonstrate a coexistence of both R32 and P3121 phases down to the lowest temperatures in a EuFe3(BO3)4 crystal grown with the Bi2Mo3O12 based flux, due to inhomogeneous distribution of impurity Bi3+ ions. Our study can be considered as a demonstration of the abilities of optical spectroscopy in delivering new information on a magnetic compound, even in the case when other methods fail

Study of the process e+e−→ppˉe^+e^-\to p\bar{p} in the c.m. energy range from threshold to 2 GeV with the CMD-3 detector

Using a data sample of 6.8 pb$^{-1}$ collected with the CMD-3 detector at the VEPP-2000 $e^+e^-$ collider we select about 2700 events of the $e^+e^- \to p\bar{p}$ process and measure its cross section at 12 energy ponts with about 6\% systematic uncertainty. From the angular distribution of produced nucleons we obtain the ratio $|G_{E}/G_{M}| = 1.49 \pm 0.23 \pm 0.30$

Measurement of the e+e−→K+K−π+π−e^+e^- \to K^+K^-\pi^+\pi^- cross section with the CMD-3 detector at the VEPP-2000 collider

The process $e^+e^- \to K^+K^-\pi^+\pi^-$ has been studied in the center-of-mass energy range from 1500 to 2000\,MeV using a data sample of 23 pb$^{-1}$ collected with the CMD-3 detector at the VEPP-2000 $e^+e^-$ collider. Using about 24000 selected events, the $e^+e^- \to K^+K^-\pi^+\pi^-$ cross section has been measured with a systematic uncertainty decreasing from 11.7\% at 1500-1600\,MeV to 6.1\% above 1800\,MeV. A preliminary study of $K^+K^-\pi^+\pi^-$ production dynamics has been performed

Non-Newtonian Couette-Poiseuille flow of a dilute gas

The steady state of a dilute gas enclosed between two infinite parallel plates in relative motion and under the action of a uniform body force parallel to the plates is considered. The Bhatnagar-Gross-Krook model kinetic equation is analytically solved for this Couette-Poiseuille flow to first order in the force and for arbitrary values of the Knudsen number associated with the shear rate. This allows us to investigate the influence of the external force on the non-Newtonian properties of the Couette flow. Moreover, the Couette-Poiseuille flow is analyzed when the shear-rate Knudsen number and the scaled force are of the same order and terms up to second order are retained. In this way, the transition from the bimodal temperature profile characteristic of the pure force-driven Poiseuille flow to the parabolic profile characteristic of the pure Couette flow through several intermediate stages in the Couette-Poiseuille flow are described. A critical comparison with the Navier-Stokes solution of the problem is carried out.Comment: 24 pages, 5 figures; v2: discussion on boundary conditions added; 10 additional references. Published in a special issue of the journal "Kinetic and Related Models" dedicated to the memory of Carlo Cercignan

Measurement of the e+e−→π+π−e^+e^-\to\pi^+\pi^- cross section from threshold to 1.2 GeV with the CMD-3 detector

The cross section of the process $e^+e^-\to\pi^+\pi^-$ has been measured in the center of mass energy range from 0.32 to 1.2 GeV with the CMD-3 detector at the electron-positron collider VEPP-2000. The measurement is based on a full dataset collected below 1 GeV during three data taking seasons, corresponding to an integrated luminosity of about 62 pb$^{-1}$. In the dominant $\rho$-resonance region, a systematic uncertainty of 0.7% has been reached. At energies around $\phi$-resonance the $\pi^+\pi^-$ production cross section was measured for the first time with high energy resolution. The forward-backward charge asymmetry in the $\pi^+\pi^-$ production has also been measured. It shows the strong deviation from the theoretical prediction based on conventional sQED framework and is in good agreement with GVDM and dispersive-based predictions. The impact of presented results on the evaluation of the hadronic contribution to the anomalous magnetic moment of muon is discussed.Comment: 52 pages, 36 figures; cosmetic changes of the text, fix fig.2 , fix comment on used selection cuts in the attached radiative correction tabl