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DETERMINATION OF CUPRITE DENSITY BY ANALYSIS OF OXYGENOUS CUPPER
Published 2016-01-01“…By the X-ray diffraction analysis it is found value of density equal 2,14 g/cm3. By the metallographic analysis, on the basis of determination of the area of cuprite in the eutectic phase, gives value of density of 3,3 g/cm3.…”
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Bifurcation Approach to Analysis of Travelling Waves in Nonlocal Hydrodynamic-Type Models
Published 2014-01-01“…When the parameter n equals 2, namely, let the isochoric Gruneisen coefficient equal 1, some exact analytical solutions such as smooth bright solitary wave solution, smooth and nonsmooth dark solitary wave solution, and periodic wave solutions, as well as uncountably infinitely many breaking wave solutions, are obtained.…”
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Metric Dimension Threshold of Graphs
Published 2022-01-01“…Also, the metric dimension threshold of some families of graphs and a characterization of graphs G of order n for which the metric dimension threshold equals 2, n−2, and n−1 are given. Moreover, some graphs with equal the metric dimension threshold and the standard metric dimension of graphs are presented.…”
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Understanding the Role of Refugees' Entrepreneurship Motives and Challenges in Integration: Evidence From the Food Industry
Published 2021-12-01“…As a result of the analysis, beyond the previous studies' findings, three interconnected fundamental relations emerged from the main dimensions' sub-categories, which contribute to a better understanding of the role of refugees' entrepreneurship motives and challenges in their integration into the host society: (1) the relation between the market accessing challenge, citizenship desire, and social equality, (2) the relation of cultural proximity and the attitude of host people in building social bridges and, (3) the relation between refugees' mental health problems and resilience in entrepreneurship achievements. …”
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Ultra‐stable, low‐noise two‐stage current source concept for electronics and laser applications
Published 2017-11-01“…For a maximum operating current equals 1 A, the current noise density of 126 nA/√Hz (at f = 1 kHz), long‐term stability of ±2.1 ppm and temperature coefficient equal 2.8 ppm/°C, were obtained, whereas the current noise below 1 nA/√Hz was obtained for lower operating currents. …”
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Luminescence of bound excitons created near sodium impurity ions in KCl:Na single crystals
Published 2025-02-01“…The lifetime of the fast component of cathodoluminescence at 2.8 and 3.1 eV equals 2.4 and 1.7 ns, respectively, at 6 K and even shortens to approximately τ ≈ 0.3 ns at room temperature. …”
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Business culture of entrepreneurship: Analysis of maturity in Ukraine and Russia
Published 2023-03-01“…To conduct a comparative study of the maturity of the business culture of entrepreneurship, an evaluation system was formed, which includes 21 evaluation objects, grouped into 4 components: 1) basic values (independence, security, equality); 2) ethical values (justification (perception) of unjust enrichment, appropriation of property, violence); 3) personal values (importance of family, friends, work, free time, politics); 4) economic values (recognition of the possibility of obtaining high entrepreneurial income and business development based on hard work, understanding the positives of the development of competition; giving priority to the development of private property over the state, personal economic responsibility over social dependence). …”
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Two-Phase Relative Permeability Curves of Bingham Heavy Oil Under Different Types of Wettability: A Theoretical Model
Published 2024-01-01“…The results of the modified two-phase relative permeability show a decrease in water saturation interval corresponding to the two-phase flow area and a smaller value of permeability at equal two-phase relative permeability. The oil–water viscosity ratio in the hydrophobic pores affects the water-phase relative permeability, although the magnitude of its influence diminishes as the viscosity ratio increases. …”
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Layered energy equalization structure for series battery pack based on multiple optimal matching
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