An Effective Mammogram Classification Using Hot Based Tree And Hot Based Cnn

Breast cancer is the subsequent leading cause of cancer-related deceases among women. Initial exposure stimulates enhanced visualization and saves survives. These days, the exact grouping classification of breast cancer images is a difficult errand. There are much research works delivering various strategies and algorithms for this specific errand of medical image processing. To build up an exact characterization, this paper presents a viable classification of mammogram images utilizing HOT based classification tree and HOT based convolutional neural network (CNN). The input breast image is at first taken from the database and pre-processed by RGB to grayscale conversion and normalization methodology. In this way Histogram of Oriented Texture (HOT) Descriptor is extorted from the pre-processed images. At long last images are classified as typical or irregular utilizing HOT based classification tree and HOT based CNN. The exploratory results show that the introduced method outperforms the existing strategies concerning various performance assessments like accuracy, sensitivity, specificity, mean absolute error, AUC score, kappa statistics, and Root mean square error

Оптические свойства квазиобъемных кристаллов нитрида галлия со структурой высокоориентированной текстуры

The results of a study of the optical properties of gallium nitride samples with a highly oriented texture structure grown without the use of traditional semiconductor or sapphire substrates are presented. It is shown that the stacking faults contained in the GaN blocks of the texture of the studied material are self-organized heteropolytype nanostructures, and that the effective luminescence in the ultraviolet spectral region associated with stacking faults I1 in the basal plane is determined by optical transitions of excitons localized near such natural defects in the single-crystalline bulk of the blocks of the GaN texture.

The effect of loading direction on the dwell fatigue properties of Ti-6Al-4V forged bar with highly oriented texture

The purpose of this study was to improve our understanding of the effect of macro/micro texture on dwell fatigue properties. The Ti-6Al-4V forged bar with highly oriented texture and fine equiaxed microstructure was used. Dwell fatigue, cyclic fatigue and creep tests were conducted at room temperature by using specimens taken in the longitudinal (L) direction and the transverse (T) direction of the bar. The effects of loading direction on dwell fatigue life and fracture surface morphology were examined in detail. The dwell fatigue life in T direction was shorter than that in L direction. The fracture surface morphologies were characteristically varied by loading waveform, amplitude and directions. In the range of 93 - 95% of 0.2%PS, the characteristic large facets were observed in the T direction in dwell fatigue. Detailed analyses revealed that the large facet consists of multiple initiation facets and propagation facets. The propagation facet plane and crack propagation direction appeared to correspond to alpha (0001) <10-10>. Furthermore, the relationship between strain rate and life time was compared to that for room temperature creep. The deviation from the Monkman-Grant relationship corresponded to the change of the fracture surface morphology.

The Roles of Ti Particles in Improving the Corrosion Resistance of Electrochemically Assembled Ni-Ti Composite Coatings

The influences of co-deposited Ti particles on corrosion behavior of electrodeposited Ni-Ti coatings were investigated. The co-deposited Ti particles caused the refined crystallite size and random-oriented texture of Ni-Ti coating. In 3.5 wt% sodium chloride (NaCl) solution, the buried Ti particles in Ni matrix blocked the corrosion path and rapid intercrystalline corrosion. The inert TiO2 could form on the exposed Ti particles and hinder localized corrosion. In 10 wt% sodium hydroxide (NaOH) solution, Ni matrix crystallites, refined by co-deposited Ti particles, contributed to formation of the passive Ni(OH)2 film. The corrosion current of Ni-Ti coating decreased by about one order of magnitude in both solutions with respect to pure Ni coating, demonstrating the co-deposited Ti particles greatly improved the corrosion resistance of Ni-Ti composite coatings. Finally, a corrosion mechanism was built to explain the co-deposited Ti particles improved corrosion resistance of the Ni-Ti composite coatings.

The interaction between orientation and motion signals in moving oriented Glass patterns

Previous psychophysical evidence suggests that motion and orientation processing systems interact asymmetrically in the human visual system, with orientation information having a stronger influence on the perceived motion direction than vice versa. To investigate the mechanisms underlying this motion-form interaction we used moving and oriented Glass patterns (GPs), which consist of randomly distributed dot pairs (dipoles) that induce the percept of an oriented texture. In Experiment 1 we varied the angle between dipole orientation and motion direction (conflict angle). In separate sessions participants either judged the orientation or motion direction of the GP. In addition, the spatiotemporal characteristics of dipole motion were manipulated as a way to limit (Experiment 1) or favor (Experiment 2) the availability of orientation signals from motion (motion streaks). The results of Experiment 1 showed that apparent GP motion direction is attracted toward dipole orientation, and apparent GP orientation is repulsed from GP motion. The results of Experiment 2 showed stronger repulsion effects when judging the GP orientation, but stronger motion streaks from the GP motion can dominate over the signals provided by conflicting dipole orientation. These results are consistent with the proposal that two separate mechanisms contribute to our perception of stimuli which contain conflicting orientation and motion information: (i) perceived GP motion is mediated by spatial motion-direction sensors, in which signals from motion sensors are combined with excitatory input from orientation-tuned sensors tuned to orientations parallel to the axis of GP motion, (ii) perceived GP orientation is mediated by orientation-tuned sensors which mutually inhibit each other. The two mechanisms are revealed by the different effects of conflict angle and dipole lifetime on perceived orientation and motion direction.