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Exploring S-type orbits in the Pluto-Charon binary system

Exploring S-type orbits in the Pluto-Charon binary system

The searching for stable zones can help us to detect additional satellites and a possible ring system, which is one of the goals of the New Horizons mission during its close approach with Pluto. Holman & Wiegert (1999) divided the orbits of a binary system into three classes, following the designations given by Dvorak (1986): in the first one, called P-type orbit, the particle is moving around the centre of mass of the binary system; in the S-type orbit, the particle is around one of the bodies and the third class of orbits are those near the Lagrangian triangular points, L 4 and L 5 . In their work,
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Effect of Iron Fe (II) and Fe (III) in a Binary  System Evaluated Bioluminescent Method

Effect of Iron Fe (II) and Fe (III) in a Binary System Evaluated Bioluminescent Method

Как видно отклик люминесцентных бактерий на ионы железа разный (рис. На основании полученных данных по влиянию ионов железа можно сделать вывод, что для бактерий E. coli[r]

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Lunar Laser Ranging Test of the Invariance of c: a Correction

Lunar Laser Ranging Test of the Invariance of c: a Correction

Note that the Earth and Moon are moving to- gether as a binary system at ∼ 30 km/s in that frame, as the Earth orbits the Sun, and relative to each other at much smaller speeds of order ∼ 10 m/s due to the eccentricity of the lunar orbit. This “much smaller speed” may be the vertical speed of the moon relative to the earth. However, the moon moves irreg- ularly in the used frame. This motion is not straight-line, that means, there is no relativity of motion between earth and moon. Therefore, we have to consider the horizontal speed (speed of revolution) of v hor ≈ 1 km/s. In the test constella-
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Thermodynamic reassessment of the La-Mn system

Thermodynamic reassessment of the La-Mn system

Since the miscibility gap in the Ce–Mn system proposed by Rolla and Iandelli [8] was not experimentally confirmed by Tang et al. [18, 19] using four key alloys subjected to X-ray analysis and differential thermal analysis (DTA). The present work ignored the report of Rolla and Iandelli [8] on the miscibility gap in the La-Mn liquid phase. In view of the fact that the lanthanide series possess some analogous properties, the La–Mn binary system should be similar to the Ce–Mn, Pr–Mn and Nd–Mn

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Theoretical Study of Irradiation Effects in Close Binaries

Theoretical Study of Irradiation Effects in Close Binaries

SUMMARY: The effect of irradiation is studied in a close binary system as- suming that the secondary component is a point source, moving in a circular orbit. The irradiation effects are calculated on the atmosphere of the primary component in a 3-dimensional Cartesian coordinate geometry. In treating the reflection effect theoretically, the total radiation (S T ) is obtained as the sum of the radiation of 1) the effect of irradiation on the primary component which is calculated by using one dimensional rod model (S r ) and 2) the self radiation of the primary component which is calculated by using the solution of radiative transfer equation in spheri- cal symmetry (S s ) . The radiation field is estimated along the line of sight of the observer at infinity. It is shown how the radiation field changes depending on the position of the secondary component.
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Mat. Res.  vol.16 número5

Mat. Res. vol.16 número5

between the A and B atoms. Ω A-B >0 when A and B atoms are repulsive. On the contrary, Ω A-B <0 when A and B atoms are attractive. Figure 1 shows the plots of free energy f versus composition c for the A-B binary system at different temperatures considering the value of Ω A-B as a multiple value of gas constant R, 1000 R, 1500R and 2000R. The values of f A and f B were assumed to be equal to R (T-T A ) and R (T-T B ), respectively. T A and T B correspond to the melting point of A and B, respectively, shown in Table 1.

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Braz. J. Chem. Eng.  vol.25 número4

Braz. J. Chem. Eng. vol.25 número4

Abstract - The hydrodynamic behaviour of a short Kühni column was investigated under no mass transfer conditions using the binary system water (continuous phase) and Exxsol D-80 (dispersed phase). The counter- current flow pattern of the liquid phases was characterised regarding the Sauter mean drop diameter, drop size distribution and hold-up; a photographic method was used to assess drop sizes. The following operating variables were studied: rotor speed, flow rate of both liquid phases and column stage. The log-normal probability density function was found to be adequate to fit the experimental drop size distributions along the column. As expected, smaller drops and more uniform drop size distributions were obtained with the increase of rotor speed and column stage number, thus indicating the predominance of drop breakage phenomena in short columns. The total hold-up was influenced mainly by rotor speed and flow rate of the dispersed phase. Recommended correlations available in the literature were found to be inadequate for predicting experimental drop sizes and hold-up, so alternative expressions, valid only for short Kühni columns, were proposed. Keywords: Liquid-liquid extraction; Kühni column; Hydrodynamics; Drop size distributions; Short columns.
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MODELLING OF BINARY MIXTURE COMMINUTION

MODELLING OF BINARY MIXTURE COMMINUTION

Abstract−− This paper treats on grindability dif- ferences of mineral mixtures to achieve a prelimi- nary selective particle size contrast by comminution in order to improve further sorting operation. Quartz and calcite had been chosen as example of binary system. The theoretical basis for this work was inspired by the optimization study carried out by Ray and Szekely (1973), through an algebraic model based on evolution of log-normal distribution of particle size during comminution. On the other hand, the present work has described grindability differences through the classical Rosin-Rammler size distribution. The study of the evaluation of binary mixture differences was realized by sieving analyses and the estimation of Rosin-Rammler sharpness and median diameter. An objective function was con- ceived stressing the relationship between the ex- pended energy in the grinding process and the opti- mum residence time. It is possible to use the results as a background for grinding optimization system, since that the penalty function inside objective func- tion can be adequately calibrated as far as technical and economic impacts on further sorting separations are concerned.
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TiO2/CuO films obtained by citrate precursor method for photocatalytic application

TiO2/CuO films obtained by citrate precursor method for photocatalytic application

CuO binary system films, obtained by citrate precursor method, the present work studied the Rhodamine B deg- radation as the central parameter. Rhodamine B, which belongs to the dyes family known as fluorides, is an or- ganic molecule considered to be very stable that does not suffer degradation with visible light, and therefore can be used in pulsed dye lasers.

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Tortuosity variation in a low density binary particulate bed

Tortuosity variation in a low density binary particulate bed

explained by the reduction in the distortion effects of both types for δ ≪ 1.0. This fact is confirmed by the results presented by Bouvard and Lange [36]. These authors simulated a coordinate number in a binary system of spherical particles of different size for two cases: (1) when inclusions touch a matrix particle (coordinate number Z) and (2) when they touch a plane wall (coordinate number Z w ). The obtained dependence of Z w /Z on

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Simulating the binary variates for the components of a socio - economical system

Simulating the binary variates for the components of a socio - economical system

For this reason is suggested a new other algorithm based on the discretization procedure DP to obtain arbitrary observations from B . This procedure simulate better the real aspects. The correlation structure of a continuous system X is inherited by the binary system B resulted after a discretization process. The relation between the correlation coefficients c 12 = Cor ( X 1 , X 2 ) and r 12 = Cor ( B 1 , B 2 ) can be determined by applying MCRCC algorithm ( see also Graphic 2 ).

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Data Fusion Using Different Activation Functions in Artificial Neural Networks for Vehicular Navigation

Data Fusion Using Different Activation Functions in Artificial Neural Networks for Vehicular Navigation

Global positioning System (GPS) and Inertial Navigation System (INS) data can be integrated together to provide a reliable navigation. GPS/INS data integration provides reliable navigation solutions by overcoming each of their shortcomings, including signal blockage for GPS and increase in position errors with time for INS. This paper aims to provide GPS/INS data integration utilizing Artificial Neural Network (ANN) architecture. This architecture is based on Feed Forward Neural Networks, which generally includes Radial Basis Function (RBF) neural network and Back Propagation neural network (BPN). These are systematic methods for training multi-layer artificial networks. The BPN-ANN and RBF-ANN modules are trained to predict the INS position error and provide accurate positioning of the moving vehicle. This paper also compares performance of the GPS/INS data integration system by using different activation function like Bipolar Sigmoidal Function (BPSF), Binary Sigmoidal Function (BISF), Hyperbolic Tangential Function (HTF) and Gaussian Function (GF) in BPN-ANN and using Gaussian function in RBF-ANN.
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Low Power Reversible Parallel Binary Adder/Subtractor

Low Power Reversible Parallel Binary Adder/Subtractor

24 computation. The design that does not result in information loss is irreversible. A set of reversible gates are needed to design reversible circuit. Several such gates are proposed over the past decades. Arithmetic circuits such as Adders, Subtractors, Multipliers and Dividers are the essential blocks of a Computing system. Dedicated Adder/Subtractor circuits are required in a number of Digital Signal Processing applications. Several designs for binary Adders and Subtractors are investigated based on Reversible logic. Minimization of the number of Reversible gates, Quantum cost and garbage inputs/outputs are the focus of research in Reversible logic.
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A decoding method of an n length binary BCH code through (n + 1)n length binary cyclic code

A decoding method of an n length binary BCH code through (n + 1)n length binary cyclic code

By (Mitola 2000), in the interweave model the secondary user has opportunistic accesses to the spectrum slum while the primary user is not in and pull out when the primary user wants to in once more. For cognitive radio transformation under the interweave model we may get spectrum corresponding to the binary cyclic code C (n+1)n for data transfer of the primary user. Now, the setup only allow the secondary user

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A Novel Feature Extraction Scheme for Medical X-Ray Images

A Novel Feature Extraction Scheme for Medical X-Ray Images

2.2. Implementation of Local Binary Pattern In this method a gray scale and rotation invariant texture operator based on local binary patterns (LBP) proposed by Ojala [3] is applied for the medical x-ray images from IRMA database. Starting from the joint distribution of gray values of a circularly symmetric neighbor set of eight pixels in a 3 × 3 neighborhood, we derive an operator that is by definition invariant against any monotonic transformation of the gray scale. Rotation invariance is achieved by recognizing that this gray scale invariant operator incorporates a fixed set of rotation invariant patterns.
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Binary Current Generation with Transient Free Switching for TBSC Compensator

Binary Current Generation with Transient Free Switching for TBSC Compensator

As there is reduction in loss with shunt compensation in the feeders, the efficiency increases and conservation of energy takes place. Besides the enhancement of transformer loading capability the shunt capacitor also improves the feeder performance, reduces voltage drop in the feeder and transformer, better voltage at load end, improves power factor and improves system security, increases over all efficiency, saves energy due to reduced system losses, avoids low power factor penalty, and reduces maximum demand charges[6, 7].
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Texture classification by texton: statistical versus binary.

Texture classification by texton: statistical versus binary.

The UIUC texture database [14] includes 25 classes and 40 images in each class. The resolution of each image is 640*480. The database contains materials imaged under significant viewpoint variations as shown in Fig. 12. Similar to Section 4.1, L training images are randomly chosen from each class while the remaining 40-L images are used as the test set. The first 10 images of each class are used to learn the library and 100 textons are clustered from each of the texture classes. The average accuracy and standard deviation over 1000 random splits are listed in Table 5. Several findings could be found in Table 3. First, similar to what we found in Table 2, the proposed methods are much better than simple binary operators, LBP.
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THERMODYNAMIC MODELING OF AZEOTROPIC MIXTURES WITH [EMIM][TfO] WITH CUBIC- PLUS-ASSOCIATION AND CUBIC EOSs

THERMODYNAMIC MODELING OF AZEOTROPIC MIXTURES WITH [EMIM][TfO] WITH CUBIC- PLUS-ASSOCIATION AND CUBIC EOSs

Abstract - Ionic liquids (ILs) are organic salts that are liquids at room temperature and have low vapor pressure. These characteristics render ILs potential substitutes of organic solvents and inorganic salts in separation of azeotropic mixtures. This work presents vapor-liquid equilibrium modeling of the azeotropic mixture acetone + methanol + 1-ethyl-3-methylimidazolium-trifluoromethanesulfonate and ethanol + water + 1-ethyl-3- methylimidazolium-trifluoromethanesulfonate with the Cubic-Plus-Association Equation of State (CPA EoS). The azeotropic ternary mixture phase behavior was properly predicted using binary interaction parameters that were adjusted from binary mixture phase equilibrium data. Results show that the CPA EoS provides a better description of experimental data as compared to the Peng-Robinson-Wong-Sandler Equation of State (PRWS EoS).
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Baking Gender Into Social Media Design: How Platforms Shape Categories for Users and Advertisers

Baking Gender Into Social Media Design: How Platforms Shape Categories for Users and Advertisers

with the help of a freeform text field that permits users to enter any text they wish, as long as they also indicate a pre- ferred pronoun (configured again as a mandatory, three- option layer of gender that can be superimposed over custom gender). This design strategy continues to visually and ideo- logically separate the gender binary from all other gendered identities. Such programming practices enact a cultural valu- ation and naturalization of gender categories that idealizes the binary. Our investigation 9 of Google+ tracked the gender category as the system reconstitutes it from profile pages to software spaces designed for advertising clients. Whenever the pronoun “their” is selected, gender simply disappears as though the user has no gender at all. Yet “male” and “female” users materialize whenever a user selects a binary gender or the pronoun “his” or “her.” By attributing so much value to gender’s constitution as a pronoun, and collapsing the pro- noun category back into a binary, this programming practice reinscribes the category of gender in a way that purports to function more effectively for the perceived needs of advertis- ers rather than users. In this space, the gender binary is made durable for advertisers, at the expense of some users who are given the illusion of agency in gender self-presentation yet are nonetheless invisibly misgendered.
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