Issues of Application Design for Social Studies

The given paper presents the relevant problem of software design for social welfare researches oriented towards the life satisfaction and other psychology studies which are important for social development. The aim of this paper is to show most important issues which can complicate application of algorithms and software for social studies e.g. testing and interviewing results analysis. It summarizes the elements of the Data Mining concepts which are vital for processing big amount of complex data characterized with weak mathematical formalization (as results of sociological studies). This article also includes description of requirements for software systems meant to be implemented in social studies and names existing software decisions in order to show their limitations. This allows us to conclude that this software implementations can be expanded and coordinated by means of new information system, created especially for solving this problem. And also includes short description of "MultiTest" web-portal designed to solve a number of problems associated with the social studies

Macroscopic and microscopic study of a CePdIn compound

The magnetization and electrical resistivity measurements on a CePdIn single crystal as well as its preparation and structural characterization are presented. The negative paramagnetic Curie temperatures indicate antiferromagnetic ground state, the anisotropy of the paramagnetic Curie temperature amounts 22.7 K. No ferromagnetic correlations were indicated. Powder neutron diffraction experiment performed at temperatures down to 0.4 K did not lead to observation of any magnetic peak in diffraction patterns. We estimate the magnetic moment on Ce atoms to be significantly lower than 0.5-B. The temperature development of lattice parameters documents the standard thermal expansion of the unit cell; no signs of structural phase transition were observed

Competing Jahn Teller distortions and ferrimagnetic ordering in the geometrically frustrated system Ni1 xCuxCr2O4

Competing Jahn Teller distortions combined with geometrical frustration give rise to a rich phase diagram as a function of x Cu and temperature in the spinel system Ni1 xCuxCr2O4. The Jahn Teller distortion of the end members acts in opposite ways, with an elongation of the NiO4 tetrahedra resulting in a structural transition at TS1 317K in NiCr2O4, but a flattening in the CuO4 tetrahedra at TS1 846K in CuCr2O4. In both cases the symmetry is lowered from cubic Fd 3m to tetragonal I41 amd on cooling. In order to follow the influence of Jahn Teller active Ni2 and Cu2 ions on the structural and magnetic properties of chromium spinels, we have investigated a series of samples of Ni1 xCuxCr2O4 by x ray and neutron powder diffraction. In the critical range 0.10 lt; x Cu lt; 0.20, strong orthorhombic distortions were observed, where competing Jahn Teller activities between the Cu2 and Ni2 ions result in distortions along both the a and c axes. For Ni0.85Cu0.15Cr2O4, the orthorhombic structure Fddd is stabilized up to TS2 368 2 K, close to the first structural phase transition at TS1 374 2 K. A ferrimagnetic spin alignment of the Ni Cu and chromium atoms sets in at much lower temperature TC 95K in this compound. The end members NiCr2O4 and CuCr2O4 undergo this ferrimagnetic transition at TC 74 and 135 K, respectively. These transitions are accompanied by the structural change to the orthorhombic symmetry which relieves the frustration. NiCr2O4 and Ni0.85Cu0.15Cr2O4 undergo a second magnetic transition at TM2 24 and 67K due to a superimposed antiferromagnetic ordering of the Cr moments resulting in a noncollinear magnetic structure. In the system Ni1 xCuxCr2O4, the magnetic transitions TC and TM2 merge with increasing copper content up to x Cu similar to 0.5. For the Ni rich chromites, geometrical frustration causes a strong reduction of the chromium moments, where magnetic long range order coexists with a disordered spin liquid like or a reentrant spin glass like state. This paper provides insight into the interplay between the Jahn Teller effect, geometrical frustration, and long range magnetic order in these complex system

Enabling of AUTOSAR system design using Eclipse-based tooling

International audienceAUTOSAR is a development partnership for standardisation of software architectures for the development of complex E/E systems. The software configuration process specified by AUTOSAR involves the handling of large amounts of data describing the E/E system. An efficient application of the process requires good and continuous toolsupport.In this paper we propose an approach for AUTOSAR tooling, which is based on the technology and, more important, on the idea of Eclipse. Eclipse is one of the most successful open source projects of the last years with a strong influence on the industry. It provides an open development platform that can easily be extended. On top of Eclipse, the approach provides an open tool basis, which can be extended by special, free or commercial plug-ins.Our AUTOSAR tooling approach is oriented towards the ideas behind Eclipse and focuses on reusing the success factors for a tool approach within the AUTOSAR community

Neutron Scattering Measurements in RbMnF\u3csub\u3e3\u3c/sub\u3e: A Test of Spin-Wave-Region Theories at Low Temperatures and Critical Behavior Near T\u3csub\u3eN\u3c/sub\u3e

With the discovery of magnetic ordering in RbMnF3, this unique antiferromagnetic system was recognized as a prime case for a test of conventional spin-wave theory (CSWT) because of its negligibly small anisotropy and its simple, cubic structure. CSWT predicts a simple T2 power-law fall-off of the sublattice magnetization. Yet to this day, no stringent tests have been made of this prediction. Seiden [(Phys. Lett. 28 A, 239 (1968)] deduced a T3 low-temperature behavior on the basis of antiferromagnetic resonance measurements, concluding that CSWT was not supported. We have recently carried out neutron scattering measurements of both single-crystal and powdered samples of RbMnF3 in order to test for CSWT, Seiden’s result, and two other more recent semiempirical spin-wave schemes, and we present an analysis of the results. Measurements in the critical regime gave values of the critical exponent β and of TN that are in agreement with previous measurements

From heavy fermion and spin-glass behavior to magnetic order in CeT 4M compounds

We report on the transitions between the ferromagnetic order, spin-glass behavior, heavy fermion and uctuating valence state in a series of isostructural compounds CeT4M (T = Ni, Cu; M = Al, Ga, Mn). The dilution of Ce or the T and M elements allowed us to follow the physical properties evolution employing the measurements of the heat capacity, dc magnetic susceptibility, frequency dependent ac magnetic susceptibility, magnetization relaxation, inelastic neutron scattering and also the X-ray photoemission spectroscopy. It is shown that the Mn rich compounds lean towards the spin glass behavior. For the compounds governed by the close to localization Ce 4f states the e ect of the crystal electric eld has been studied. It has been shown that the spin glass-like behavior can signi cantly in uence the physics of the CeT4M compounds

Strong coupling between magnetic and structural order parameters in SrFe2As2

X-ray and Neutron diffraction as well as muon spin relaxation and M\"ossbauer experiments performed on SrFe$_2$As$_2$ polycrystalls confirm a sharp first order transition at $T_0 = 205$,K corresponding to an orthorhombic phase distortion and to a columnar antiferromagnetic Fe ordering with a propagation vector (1,0,1), and a larger distortion and larger size of the ordered moment than reported for BaFe$_2$As$_2$. The structural and the magnetic order parameters present an remarkable similarity in their temperature dependence from $T_0$ down to low temperatures, showing that both phenomena are intimately connected. Accordingly, the size of the ordered Fe moments scale with the lattice distortion when going from SrFe$_2$As$_2$ to BaFe$_2$As$_2$. Full-potential band structure calculations confirm that the columnar magnetic order and the orthorhombic lattice distortion are intrinsically tied to each other.Comment: 10 pages, 4 figure

Canted ferrimagnetism and giant coercivity in the nonstoichiometric double perovskite La2Ni1.19Os0.81O6

The nonstoichiometric double perovskite oxide La2Ni1.19Os0.81O6 was synthesized by solid state reaction and its crystal and magnetic structures were investigated by powder x ray and neutron diffraction. La2Ni1.19Os0.81O6 crystallizes in the monoclinic double perovskite structure general formula A2B B O6 with space group P21 n, where the B site is fully occupied by Ni and the B site by 19 Ni and 81 Os atoms. Using x ray absorption spectroscopy an Os4.5 oxidation state was established, suggesting the presence of about 50 paramagnetic Os5 5d 3 , S 3 2 and 50 nonmagnetic Os4 5d 4 , J eff 0 ions at the B sites. Magnetization and neutron diffraction measurements on La2Ni1.19Os0.81O6 provide evidence for a ferrimagnetic transition at 125 K. The analysis of the neutron data suggests a canted ferrimagnetic spin structure with collinear Ni2 spin chains extending along the c axis but a noncollinear spin alignment within the ab plane. The magnetization curve of La2Ni1.19Os0.81O6 features a hysteresis with a very high coercive field, HC 41 kOe, at T 5 K, which is explained in terms of large magnetocrystalline anisotropy due to the presence of Os ions together with atomic disorder. Our results are encouraging to search for rare earth free hard magnets in the class of double perovskite oxide

Crystal structures and magnetic properties of dimorphic Li3OsO4

Rocksalt type oxides Li3OsO4 with disordered and ordered arrangements of Li and Os were synthesized. The disordered phase crystallizes in the ideal rocksalt structure with cubic space group , while the ordered polymorph adopts the monoclinic Na3BiO4 type structure space group P2 c . The analyses of X ray and neutron diffraction data of monoclinic Li3OsO4 indicate that there is a considerable anti site disorder of Li and Os and that the sample is nonstoichiometric [Li3.045 5 Os0.955 5 O4]. In monoclinic Li3OsO4 the OsO6 octahedra are not isolated from each other but they form edge sharing zigzag chains. Both cubic and monoclinic Li3OsO4 are electrically semiconducting. Cubic Li3OsO4 does not show any sign of magnetic order down to 2 amp; 8239;K, whereas the amp; 967; T data of monoclinic Li3OsO4 display an anomaly at 310 amp; 8239;K. However, the neutron diffraction study indicated no evidence of long range magnetic order. The anomaly at 310 amp; 8239;K may be caused by short range antiferromagnetic ordering within the individual Os chain