12 research outputs found

    A mathematical age-structured model on Aiha using delay partial differential equations,

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    Abstract: In this paper we obtain exact global solution for the delay differential equations (DDEs) model in AIHA (Auto-immune hemolytic anemia) by an analytic approach. Three important parameters such as time t, age α and rate of production β are involved in DDEs of cell density in a hematological disorder. Hill functions are used for solution of DDEs as they constantly fit into the data while a study on the movement of oxygen is carried out. When the erythrocyte population increases the oxygen carrying capacity of the blood will also increase but anemia will decrease. The origin of the disease anemia is unclear. Mathematical model construction is something of an art in itself and the same can be said for parameter estimation. This will open new avenues for futuristic developments

    Video Saliency Detection by using an Enhance Methodology Involving a Combination of 3DCNN with Histograms

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    When watching pictures or videos, the Human Visual System has the potential to concentrate on important locations. Saliency detection is a tool for detecting the abnormality and randomness of images or videos by replicating the human visual system. Video saliency detection has received a lot of attention in recent decades, but due to challenging temporal abstraction and fusion for spatial saliency, computational modelling of spatial perception for video sequences is still limited.Unlike methods for detection of salient objects in still images, one of the most difficult aspects of video saliency detection is figuring out how to isolate and integrate spatial and temporal features.Saliency detection, which is basically a tool to recognize areas in images and videos that catch the attention of the human visual system, may benefit multimedia applications such as video or image retrieval, copy detection, and so on. As the two crucial steps in trajectory-based video classification methods are feature point identification and local feature extraction. We suggest a new spatio-temporal saliency detection using an enhanced 3D Conventional neural network with an inclusion of histogram for optical and orient gradient in this paper

    Stacked Cu1.8S nanoplatelets as counter electrode for quantum dot-sensitized solar cell

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    It is found that the electrocatalytic activity of Cu2-xS thin films used in quantum dot-sensitized solar cells (QDSSCs) as counter electrode (CE) for the reduction of polysulfide electrolyte depends on the surface active sulfide and disulfide species and the deficiency of Cu. The preferential bonding between Cu2+ and S2-, leading to the selective formation of a Cu1.8S stacked platelet-like morphology, is determined by the cetyl trimethyl ammonium bromide surfactant and deposition temperature; the crab-like Cu-S coordination bond formed dictates the surface area to volume ratio of the Cu1.8S thin films and their electrocatalytic activity. The Cu deficiency enhances the conductivity of the Cu1.8S thin films, which exhibit near-infrared localized surface plasmon resonance due to free carriers, and UV-vis absorption spectra show an excitonic effect due to the quantum size effect. When these Cu1.8S thin films were employed as CEs in QDSSCs, a robust photoconversion efficiency of 5.2% was obtained for the film deposited at 60 °C by a single-step chemical bath deposition method

    Parameter Estimation Modeling for the Analysis of CN Diseases by Alternative G-CSF Treatment

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    ABSTRACT The FFT (Fast Fourier Transform) simulation develops the dynamics of circulating blood cells before and after the granulocyte colony stimulating factor (G-CSF) treatment. We review different modeling approaches in hematology, mainly based on the study of periodic hematological disorders. In particular, modeling of cyclical neutropenia (CN) and analysis of its dynamical properties has provided insights on the origin of the disease and potentially helped in the design of new G-CSF treatment regimens. We proposed alternative G-CSF treatment strategies for cyclical neutropenia using a combination of analytical and numerical tools. There are fitting parameters to evaluate the estimation of seven set of dogs. It is also essential and necessary to model more samples for increase in Neutrophil amplification. It may reduce the amount of G-CSF for required potential maintenance. Sometimes, it may even improve the treatment effects too. This model gives us good result in treatment. After this (Absolute Neutrophil Count) ANC base, the neutrophil levels then increase. Treatment protocols prescribe daily G-CSF treatment (starting dose of 5μg/kg) beginning at least 12 hours after treatment. It should be administered daily for up to 14 days or until the ANC has reached normal levels following the neutrophil base. Nevertheless, it is not clear what would be the best schedule for giving G-CSF following treatment. A few studies have considered alternative G-CSF regimens in order to find optimal G-CSF timing. However, the results and conclusions vary from one study to another

    Achieves of Scientific Research Epidemiological Models of Susceptible Infectious Recovered and Susceptible Infectious Susceptible Numbers

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    ABSTRACT The objective of this paper is to investigate and compare the role of susceptible infectious recovered (SIR) and susceptible infectious susceptible (SIS) epidemic models. Some important and interesting results are obtained which in turn leads to a solution of SIR and SIS models. The average infective replaces itself with one new infective during the infectious period. The two basic epidemiological models in this paper have assumed that the population being considered is uniform and homogeneously mixing. All parameters are non-negative and these solutions are considered since negative solutions have no epidemiological significance

    Semianalytical solutions by homotopy analysis method for EIAV infection with stability analysis

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    Abstract Equine Infectious Anemia Virus (EIAV) is a bovine lentivirus group that creates equine infectious anemia in horses around the globe. In this paper, we propose a basic nonlinear differential equation for EIAV infection. Moreover, we obtain a semianalytic approximate solution by the homotopy analysis method (HAM). The gain of this method allows providing a direct scheme for solving the problem. Furthermore, we find the local and global stability of disease-free and endemic equilibrium using a Lyapunov functional. We use Mathematica to carry out the calculations. Graphical outcomes are carried out, and six terms are sufficient to show the effectiveness and power of the method

    Phase transition kinetics and surface binding states of methylammonium lead iodide perovskite

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    We have presented a detailed analysis of the phase transition kinetics and binding energy states of solution processed methylammonium lead iodide (MAPbI3) thin films prepared at ambient conditions and annealed at different elevated temperatures. It is the processing temperature and environmental conditions that predominantly control the crystal structure and surface morphology of MAPbI3 thin films. The structural transformation from tetragonal to cubic occurs at 60 °C with a 30 minute annealing time while the 10 minute annealed films posses a tetragonal crystal structure. The transformed phase is greatly intact even at the higher annealing temperature of 150 °C and after a time of 2 hours. The charge transfer interaction between the Pb 4f and I 3d oxidation states is quantified using XPS
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