438 research outputs found

    Some Exact Solutions to Equations of Motion of an Incompressible Third Grade Fluid

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    This investigation deals with some exact solutions of the equations governing the steady plane motions of an incompressible third grade fluid by using complex variables and complex functions. Some of the solutions admit, as particular cases, all the solutions of Moro et al[1].Comment: 6 pages, 7 figure

    Determinants of Household Saving: A Case Study of Kabul Afghanistan

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    Household saving is a source of investment and is regarded as a key factor in economic growth. This study is an effort to examine the determinants of household saving in Kabul, Afghanistan. The several economic and socio-demographic factors that affect household saving have been completely examined in this study. The data were collected through a well-structured questionnaire from 384 households. Through stratified random sampling, 384 household’s heads were interviewed. For statistical investigation we applied Diagnostic test and Generalized Least Square (GLS) methods to our model. It is observed from the estimated result of this study that income is a major and most important determinant of household saving which positively affects the saving of a household. Further, results also reveal that household size has negative and significant relationship with household saving. The educational level of the household head shows a negative impact on household saving. The results further indicate that married household head and male household head are likely to save more as compared to unmarried household head and female household head respectively. Moreover, age of the household head confirms the Life-Cycle-Hypothesis. The results reveal that with the increase in age at middle age of an individual the saving increases, however it decreases at the latter age of life

    EFFECT OF BENTONITE ON FRESH AND HARDENED PROPERTY OF SELF COMPACTING CONCRETE

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    Self compacting concrete can be described as a high performance material which flows under its own weight without requiring vibrators to achieve consolidation by complete filling of formworks even when access is hindered by narrow gaps between reinforcement bars. Self compacting concrete required a large amount of binder (paste) and chemical admixtures. This paper presents the use of bentonite in self compacting concrete as viscosity modifying agent (VMA). Bentonite as VMA and other chemical admixture which are liquid form of VMA are compared to check the fresh and hardened properties of self compacting concrete such as, Slump flow, funnel, L-box , sieve stability tests, further compressive strength of the self compacting concrete at the age of 28 days was determined

    Methyl 2-amino-5-bromo­benzoate

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    In the title compound, C8H8BrNO2, the dihedral angle between the aromatic ring and the methyl acetate side chain is 5.73 (12)°. The mol­ecular conformation is stabilized by an intra­molecular N—H⋯O hydrogen bond, generating an S(6) ring. In the crystal, mol­ecules are connected by N—H⋯O inter­actions, generating zigzag chains running along the b-axis direction

    Partial slip effect on heat and mass transfer of MHD peristaltic transport in a porous medium

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    This research looks at the effects of partial slip on heat and mass transfer of peristaltic transport. The magnetohydrodynamic (MHD) flow of viscous fluid in a porous asymmetric channel has been considered. The exact solutions for the stream function, longitudinal pressure gradient, longitudinal velocity, shear stress, temperature and concentration fields are derived by adopting long wavelength and small Reynolds number approximations. The results showed that peristaltic pumping and trapping are reduced with increasing velocity slip parameter. Furthermore, temperature increases with increasing thermal slip parameter. Moreover, the concentration profile decreases with increasing porosity parameter, Schmidt number and concentration slip parameter. Comparisons with published results are found to be in good agreement

    Accelerated Proximal Algorithm for Finding the Dantzig Selector and Source Separation Using Dictionary Learning

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    In most of the applications, signals acquired from different sensors are composite and are corrupted by some noise. In the presence of noise, separation of composite signals into its components without losing information is quite challenging. Separation of signals becomes more difficult when only a few samples of the noisy undersampled composite signals are given. In this paper, we aim to find Dantzig selector with overcomplete dictionaries using Accelerated Proximal Gradient Algorithm (APGA) for recovery and separation of undersampled composite signals. We have successfully diagnosed leukemia disease using our model and compared it with Alternating Direction Method of Multipliers (ADMM). As a test case, we have also recovered Electrocardiogram (ECG) signal with great accuracy from its noisy version using this model along with Proximity Operator based Algorithm (POA) for comparison. With less computational complexity compared with ADMM and POA, APGA has a good clustering capability depicted from the leukemia diagnosis
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