Automation of the Technological Process to Produce Building Frame-Monolithic Modules Based on Fluoranhydrite

The paper first proposes the automation of the technological process to produce building frame-monolithic modules from production wastes, namely technogenic anhydrite and fluoranhydrite. A functional diagram of the process automation is developed, the devices to perform control and maintenance with account of the production characteristics are chosen

Computer-assisted Electrodynamic Modeling System for Oil and Gas Industry Electric Drives Study

Electrodynamics models of the oil and gas equipment that mainly consist of several controlled electric drives mechanisms and autonomous generators are considered. Applications of the model to drilling and pumping drives are presented.Рассмотрены электродинамические модели автоматизированного нефтяного и газового оборудования, состоящие преимущественно из управляемых электрических механизмов и автономных генераторов. Приведены примеры использования моделей для буровых и насосных установок.Розглянуто електродинамічні моделі автоматизованого нафтового і газового обладнання, які складаються переважно з керованих електричних механізмів і автономних генераторів. Наведено приклади використання моделей для бурових та насосних установок

Electronic, Optical, and Vibrational Properties of an AgAlS2 Crystal in a High-Pressure Phase

The aim of this study is to comprehensively examine the structural composition and properties of the AgAlS2 crystal during its high-pressure phase. This analysis delves into the second coordination environment of the crystal structure and elucidates the distinct transformations it undergoes during the phase transition. The band energy structure was calculated, and the origin of electronic levels was clarified. It is shown that the crystal becomes non-stratified during the phase transition. This study also determined the values of the crystal’s carrier effective masses, underscoring its spatial anisotropy. It was found that the calculated optical functions are similar to the crystal in the chalcopyrite structure, and their differences are shown. Further, this study involved the calculation of the crystal’s phonon spectrum, revealing the spectrum’s transformation during the phase transition. The vibrational frequencies were also obtained, with a symmetrical classification of vibrational modes. Finally, this study derived the infrared and Raman spectra of the AgAlS2 crystal, thereby providing a comprehensive picture of the crystal during its high-pressure phase

The Ag2S– GeS2 System and the Crystal Structure of Ag2GeS3

Диаграмма фазовых равновесий системы Ag2S–GeS2 была построена, используя результаты дифференциально-термического и рентгенофазового анализа. Подтверждено существование трёх соединений: Ag8GeS6, Ag10Ge3S11 и Ag2GeS3. Соединения Ag8GeS6 и Ag2GeS3 плавятся конгруэнтно при 1221 K и 922 K соответственно и являются диморфными. Для Ag10Ge3S11 характерен инкон- груэнтный тип образования при 1015 K. Рентгеновским методом порошка уточнена кристаллическая структура Ag2GeS3 (ПГ Cmc21, a = 1,17895(9) нм, b = 0,70751(5) нм, c = 0,63420(5) нм, RI = 0,0702) Phase equilibria diagram of the Ag2S–GeS2 system was investigated using the results of differential thermal analysis and X-ray diffraction. The existence of three compounds, Ag8GeS6, Ag10Ge3S11 and Ag2GeS3, was confirmed. Ag8GeS6 and Ag2GeS3 melt congruently at 1221 K and 922 K, respectively; these compounds are dimorphous. Ag10Ge3S11 is characterized by the incongruent type of formation at 1015 K. The crystal structure of Ag2GeS3 was refined using X-ray powder method (space group Cmc21, a = 1,17895(9) nm, b = 0,70751(5) nm, c = 0,63420(5) nm, RI = 0,0702)

Proceedings of the third French-Ukrainian workshop on the instrumentation developments for HEP

The reports collected in these proceedings have been presented in the third French-Ukrainian workshop on the instrumentation developments for high-energy physics held at LAL, Orsay on October 15-16. The workshop was conducted in the scope of the IDEATE International Associated Laboratory (LIA). Joint developments between French and Ukrainian laboratories and universities as well as new proposals have been discussed. The main topics of the papers presented in the Proceedings are developments for accelerator and beam monitoring, detector developments, joint developments for large-scale high-energy and astroparticle physics projects, medical applications.Comment: 3rd French-Ukrainian workshop on the instrumentation developments for High Energy Physics, October 15-16, 2015, LAL, Orsay, France, 94 page

Synergistic effect of microbe-associated molecules on human monocyte-derived dendritic cell maturation in vitro

Microbe-associated molecules (MAM) are known to exert stimulating effect on the dendritic cell (DC) maturation. The aim of this investigation was a comparative study of the effect of different MAMs, used separately and in combination, on human monocyte-derived DC maturation in vitro. Methods. The studied MAMs were represented by lipopolysaccharide (LPS) from Escherichia coli and different biopolymers from Staphylococcus aureus Wood 46. DC phenotype was analyzed by flow cytometry. Functional maturity of DC was assessed in the mixed leukocyte reaction. Results. The use of MAMs in combination has been shown to be more efficient for phenotypic and functional maturation of monocyte-derived DCs than utilizing different MAMs separately. The most potent stimulatory effect has been observed for the combination of LPS with peptidoglycan (PepG) or teichoic acid with PepG. Conclusions. Combined use of different MAMs, especially those that activate different signaling pathways (LPS-PepG and teichoic acid-PepG), results in synergistic stimulation of monocyte-derived DC maturation

Band structure, density of states, and crystal chemistry of ZrGa2 and ZrGa3 single crystals

Using FP-LAPW Method we have performed calculations of the band structure of the ZrGa2 and ZrGa3 crystals. The all-electron full potential linearized augmented plane wave method was used to solve the Kohn Sham DFT equations. We have explored different approximations using three kinds of exchange-correlation potentials on the electronic structure and we concluded that there is insignificant influence on the band structure and the density of states. It is clear that there exists a difference in the band dispersion with one move from ZrGa2 to ZrGa3 that is attributed to the fact that ZrGa2 has four formula per unit cell (Z = 4) while ZrGa3 has two formula per unit cell (Z = 2). Despite some similarity in the crystallochemistry of ZrGa2 to ZrGa3 some differences are observed in the band structure dispersion. There is a strong hybridization between the states. The interaction of charges between Zr and Ga atoms is due to the strong hybridization, and the covalent bond arises due to the degree of hybridization. Hence, there is a strong covalent bonding between these atoms. We have obtained a space electron charge density distribution in the average unit cell by calculations of the electron charge density distribution. The space electronic charge density contour distribution is illustrated in (1 0 0) and (1 1 0) planes

Linear, non-linear optical susceptibilities and the hyperpolarizability of the mixed crystals Ag0.5Pb1.75Ge(S1-xSex)(4): experiment and theory

As the starting point for a comprehensive theoretical investigation of the linear and nonlinear optical susceptibilities, we have used our experimental crystallographic data for Ag0.5Pb1.75GeS3Se (Ag2Pb7Ge4S12Se4) reported. The experimental crystallographic positions were optimized by minimizing the forces acting on each atom to get meaningful theoretical predictions of the optical properties. The linear optical susceptibilities are calculated. We find that the optical band gap shows very good agreement with our measured gap. The second-order nonlinear optical (NLO) susceptibilities dispersion namely the optical second harmonic generation (SHG) is calculated and compared with our experimental measurements. The microscopic first order hyperpolarizability, beta(123), vector component along the principal dipole moment directions for the chi((2))(123)(omega) component was obtained theoretically and compared with our measured values at different temperatures. The dependence of the two-photon absorption (TPA) for the pump-probing at SHG of the microsecond CO2 laser was measured. In addition we explored the linear electro-optical effect in these crystals. This effect is described by the third rank polar tensors similarly to the SHG. However, for the Pockels effect besides the electronic contribution, the phonon subsystem also begins to play a principal role. As a consequence we study the dispersion of the linear electro-optical effects in the mentioned crystals