[en] It is shown that under the assumption of no intermolecular interaction, the permittivity of a homogeneous linear and isotropic fluid mixture is the sum of the individual permittivities weighted with the mole fractions of the components. For definiteness, a proof is given for gasses under standard temperature and pressure; it is, however, easy to generalize it to other conditions, as well as to liquids, as long as the assumption of no intermolecular interaction is retained. Also, although the proof is given for a binary mixture, it is a simple exercise to extend it to any multicomponent mixture

[en] A local composition model for multicomponent, nonaqueous, liquid mixture shear viscosity has been developed and tested. Only binary equilibrium thermodynamic information is required in addition to pure component data; no mixture viscosity data and no adjustable parameters are used. Predictions have been compared to experimental data obtained from the literature and in this laboratory yielding an average absolute percent deviation of 1.1% for 1n(nuv) for 47 binary systems consisting of 391 points over the entire composition range and 0.75% for seven ternary systems consisting of 63 data points. The data used in the comparison are primarily at 298 K and 1 atm

[en] A model for the packing density of multi-sized grains is presented. For a given mixture, the packing density is expressed as a function of the fractional solid volume of each grain size present. The case of grain sizes continually distributed is derived. Comparison of model predictions with binary, ternary and higher-order mixtures is quite encouraging. (orig.)

[en] This report provides minimum critical values for various 30-cm water-reflected uranium and plutonium oxide and nitrate aqueous mixtures as calculated by the SCALE CSAS1X sequence using the 238-group ENDF/B-V neutron cross-section library. The minimum values were determined through parametric searches in one-dimensional geometry. The calculations have been performed to obtain the minimum values: critical volume and mass for spheres, critical radius for cylinders, critical thickness for slabs, and minimum critical concentration (infinite geometry) for the following homogeneous mixtures: (1) UO₂-H₂O for 3, 4, 5, 20, and 100 wt % ²³⁵U; (2) UNH for 3, 4, 5, 20, and 100 wt % ²³⁵U; (3) PuO₂-H₂O for 100/0/0, 95/5/0, 90/5/5, 80/10/10, and 71/17/11/1 wt % of ²³⁹Pu/²⁴⁰Pu/²⁴¹Pu(/²⁴²Pu); and (4) PuNH for 100/0/0, 95/5/0, 90/5/5, 80/10/10, and 71/17/11/1 wt % of ²³⁹Pu/²⁴⁰Pu/²⁴¹Pu(/²⁴²Pu). All bounding surfaces were fully reflected by 30 cm of H₂O

[en] We employ the adaptive resolution approach AdResS, in its recently developed Grand Canonical-like version (GC-AdResS) [H. Wang, C. Hartmann, C. Schütte, and L. Delle Site, Phys. Rev. X 3, 011018 (2013)], to calculate the excess chemical potential, μ^ex, of various liquids and mixtures. We compare our results with those obtained from full atomistic simulations using the technique of thermodynamic integration and show a satisfactory agreement. In GC-AdResS, the procedure to calculate μ^ex corresponds to the process of standard initial equilibration of the system; this implies that, independently of the specific aim of the study, μ^ex, for each molecular species, is automatically calculated every time a GC-AdResS simulation is performed

[en] The article presents the results of a literature analysis of the methods of compaction of materials, analytical and experimental research on the creation of a roller compacting device and the determination of its operation modes, which provides an efficient preliminary compaction of a composite mixture based on technogenic materials. (paper)

[en] Degreening, a transformation process of green color on citrus peel to be orange color on tropical low-land citrus fruits often fails. Orange color of the citrus peel comes from the mixture carotenoid pigments, such as zeaxanthine and mainly β-cryptoxanthin and β-citraurin. The accumulation of β-citraurin occurs when the fruits are exposed to low temperature, and otherwise, it will fail to occur. Precooling treatment on lowland tropical citrus fruits is expected to stimulate the accumulation of β-citraurin. The results showed the most favorable color obtained from precooling and 24-hour ethylene exposure duration. This treatment could decrease total chlorophyll and β-carotene content as well as proven to increase 3 times the accumulation of β-cryptoxanthin in accelerating the appearance of bright orange color on citrus peel. Degreening gave no significant effect to internal quality of Citrus reticulata. (paper)

[en] Based on the gradation of AC and SMA, this paper designs a new type of anti slide mixture with two types of advantages. Chapter introduces the material selection, ratio of ore mixture ratio design calculation, and determine the optimal asphalt content test and proportioning design of asphalt concrete mix. This paper introduces the new technology of mix proportion. (paper)

[en] This research use of lime filler Sukaraja expected add durability layers of concrete pavement is asphalt damage caused by the weather and load traffic. This study attempts to know how much value characteristic Marshall on a mixture of concrete asphalt using lime filler. This research uses experimental methods that is with a pilot to get results, thus will look filler utilization lime on construction concrete asphalt variation in filler levels 2 %, 3 %, 4 %.The results showed that the use of lime filler will affect characteristic a mixture of concrete asphalt. The more filler chalk used to increase the value of stability. On the cretaceous filler 2 % value of stability is 1067,04 kg. When lime filler levels added to the levels of filler 4 %, the value of stability increased to 1213,92 kg. The flexibility increased the number of filler as levels lime 2 % to 4 % suggests that are conducted more stiff mix. (paper)

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