Stresses in an Isotropic Elastic Plate in the Form of Pascal's Limacon under Concentrated Forces

The problem of a thin elastic plate in the form of Pascal's limacon under concentrated forces at the extremeties of its axis has been solved by using complex variable technique. The solution has been obtained in a closed form. Stress components have been found out. In particular, the solution of an elastic circular plate and that of a plate in the form of a cardioid have been discussed. The variation of stress-intensity factor has been studied

Doping, Vacancy formation and Substitutional Effects on Semiconductor Selectivity of Rutile TiO2 Crystal

We have investigated the energy band structure and electronic transitional spectra of rutile and oxygen point defect/substitution of X-rutile (X= B, C and N atoms) by using the Hartree-Fock and density functional theories calculations based on STO-3G basis set. Our calculated results showed that the oxygen vacancy enhanced the photocatalytic activity at the visible light range, due to mid gap induced states. In substitutional X to O doped rutile, the transition of excited electrons may induce a red shift of optical absorption edge, that may result due to donor state produced by doping atoms. Our results also indicated that the theoretical investigation can provide important information and good prediction of semiconductor properties. Keywords: Ceramic, Rutile, Vacancy, Doped TiO2, ab initio, DF

Half Gaussian-based wavelet transform for pooling layer for convolution neural network

Pooling methods are used to select most significant features to be aggregated to small region. In this paper, anew pooling method is proposed based on probability function. Depending on the fact that, most information is concentrated from mean of the signal to its maximum values, upper half of Gaussian function is used to determine weights of the basic signal statistics, which is used to determine the transform of the original signal into more concise formula, which can represent signal features, this method named half gaussian transform (HGT). Based on strategy of transform computation, Three methods are proposed, the first method (HGT1) is used basic statistics after normalized it as weights to be multiplied by original signal, second method (HGT2) is used determined statistics as features of the original signal and multiply it with constant weights based on half Gaussian, while the third method (HGT3) is worked in similar to (HGT1) except, it depend on entire signal. The proposed methods are applied on three databases, which are (MNIST, CIFAR10 and MIT-BIH ECG) database. The experimental results show that, our methods are achieved good improvement, which is outperformed standard pooling methods such as max pooling and average pooling

Stability and Electronic Properties of C60Chain Polymer: DFT Study

Interfullerene C60 cages polymers have been investigated by density functional theory in general gradient approximation PBE calculations based on DZP basis set. The electronic spectra of these systems are carried out by using TDDFT (PBE/DZP) method. The heat of formation, electronic levels and electronic density of states are explored. The integrated polymer (polymer-A) has a high heat of formation and a very low band gap (like a semi-metallic), while the inter-bonded cyclo addition polymer (polymer-B) has moderate heat of formation and a semiconductor band gap. C60 polymers have strong electron correlation, which increases the localization of electrons. The electron excitations have two peaks for polymer-A, one is strong and the other is weak. Polymer-B has a single band of absorption with higher energy than that of polymer-A. Keywords: C60 chain polymer,fullerene molecules,electronic properties,DF

Critical Aspects of Modern Open Source SoftwareTechnology to Support Emerging Demands

Software has gained immense importance in our everyday lifeand is handling each and every aspect of today's technologicalworld. The idea of software at initial phase was implemented bya very precise minority of individual and now it's everywherewhether one's personal life or an organization .Financiallystrong organization and people who can purchase this bounty oftechnological era can fulfill their desires efficiently. For sure it's not a generalized case that one is financially strong and caneasily afford the desired software. There are numerous userswho cannot do so. Open source software has a way out for theseusers it provides them the same facilities and functionalities asin their equivalent software irrespective of any financialpressure. So the financially constrained personals ororganization can make use of open source software forachievement of their desired tasks. In this research paper ananalysis of open source software has been presented byproviding a brief comparison of Ubuntu as an emerging highquality open source modern operating system with well knownMicrosoft windows operating systemComment: 7 pages, 3 table

Spin-Hall magnetoresistance and spin Seebeck effect in spin-spiral and paramagnetic phases of multiferroic CoCr2O4 films

We report on the spin-Hall magnetoresistance (SMR) and spin Seebeck effect (SSE) in multiferroic CoCr2O4 (CCO) spinel thin films with Pt contacts. We observe a large enhancement of both signals below the spin-spiral (Ts = 28 K) and the spin lock-in transitions (T_{lock_in} = 14 K). The SMR and SSE response in the spin lock-in phase are one order of magnitude larger than those observed at the ferrimagnetic transition temperature (Tc = 94 K), which indicates that the interaction between spins at the Pt|CCO interface is more efficient in the non-collinear magnetic state below Ts and T_{lock-in}. At T > Tc, magnetic field-induced SMR and SSE signals are observed, which can be explained by a high interface susceptibility. Our results show that the spin transport at the Pt|CCO interface is sensitive to the magnetic phases but cannot be explained solely by the bulk magnetization

Degradation of glass polymers due to successive exposure to acid rain and UV radiation

Utilization of polymer products for outdoor applications is continuously increasing. So the stability of polymers against environmental degradation became top of interests for many researchers. The effect of environmental elements on the polymers stability has been studied, but individually. A solution against an environmental element may conflict with a solution against other element. Therefore current study aimed to clarify a sort of these conflicts. Polymethylmethacrylate (PMMA) films as example of glassy polymers are exposed to acid rains and Ultraviolet (UV) radiation in sequenced method for different time intervals. The effects on both structural and optical parameters are deduced from the measurements of Infrared spectra, X-ray diffraction charts, refractive indices and optical dispersion of samples before and after treatments. Chain scission is found to reduce the transparency of the samples. Acid rains are found to enhance the transparency of PMMA films by disordering chain fragments that are released by chain scission. Lot of experimental data are given in many coloured graphs