Separation of variables

Xem 1-20 trên 53 kết quả Separation of variables
  • In this paper, present the analytic solutions of the atmospheric advection-diffusion equation with the stratification of the boundary condition. The solution has been found by applied the separation of variable method and Bessel’s equation.

    pdf7p sansan2 26-05-2018 17 0   Download

  • This paper present a twodimensional problem of electromagnetic scattering from line source located outside of a metallic elliptical cylinder coved by isorefractive (right-handed material) and anti-isorefractive dielectric (left-handed material) . Analytical solutions of electric and magnetic fields as functions of line source position and layer thickness are discussed in frequency domain.

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  • Biochemical variability among the 15 isolates of Alternaria isolates from different locations of West Bengal was investigated in respect of isozyme to observe the polymorphism among the isolates. Electrophoretic separation of the extracts was carried out on native PAGE following the procedure and gels were stained for different enzymes. The activity of α- esterase produced distinctive bands that were dark brown, whereas the activity of β- esterase produced bands that were dark pink so that α- esterase and βesterase were scored very easily.

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  • Our stylized model generates several empirical hypotheses about the insurance offer decision. Firms in industries where labor turnover rates are high do not tend to offer insurance. Premium rigidities will be most pronounced in such industries. Firms not offering insurance will tend to have lower health-cost variability and lower average expected health spending than firms offering insurance; for example, they have higher proportions of younger workers or are in industries where workers tend to be healthy.

    pdf21p quaivatxanh 29-11-2012 47 5   Download

  • This high level of spending extends well into the pay period: in weeks beginning 8 to 14 days after payday, spending is still 5 percent higher than in the omitted category. The final distance category captures the significant increase in spending due to overlap with the next payday.13 To further verify that our baseline results are not driven by our parameterization of the distance measure, we regress log expenditure on separate dummy variables for each starting distance from payday.

    pdf62p bin_pham 06-02-2013 38 3   Download

  • We introduce a spectral learning algorithm for latent-variable PCFGs (Petrov et al., 2006). Under a separability (singular value) condition, we prove that the method provides consistent parameter estimates.1 Introduction Statistical models with hidden or latent variables are of great importance in natural language processing, speech, and many other fields. The EM algorithm is a remarkably successful method for parameter estimation within these models: it is simple, it is often relatively efficient, and it has well understood formal properties. ...

    pdf9p nghetay_1 07-04-2013 27 1   Download

  • "Calculus and its applications: 5.7" - Objective: solve differential equations, verify that a given function is a solution of a differential equation, solve differential equations using separation of variables, solve applications involving differential equations.

    ppt25p bexinh1610 07-09-2014 32 1   Download

  • In this paper, authors proposed an FPGAbased ICA implementation using FastICA algorithm. The design can process 4 audio channels with variable length from 29 to 225 samples.

    pdf7p vititan2711 13-08-2019 7 1   Download

  • In this paper, a variable separation method for determining the reliability of construction is proposed. Therefore, the reliability is a multiflication of two probabilities: The probability of the occurrance of load and the probability of construction in the condition the load has a determined value.

    pdf6p chikychiky 26-10-2018 21 0   Download

  • For clustering problems based on the model of mixture probability distribution separation, we propose new Variable Neighbourhood Search algorithms (VNS) and evolutionary genetic algorithms (GA) with greedy agglomerative heuristic procedures and compare them with known algorithms. New genetic algorithms implement a global search strategy with the use of a special crossover operator based on greedy agglomerative heuristic procedures in combination with the EM algorithm (Expectation Maximization).

    pdf17p danhnguyentuongvi27 19-12-2018 11 0   Download

  • The paper is concerned with an eigenvalue problem for second order differential equations with impulse. Such a problem arises when the method of separation of variables applies to the heat conduction equation for two-layered composite.

    pdf12p tuongvidanh 06-01-2019 13 0   Download

  • This paper’s purpose is to investigate the BHP on a disk, especially, the problem is associated with the perturbed diffusivity and the space-dependent heat source. In order to solve the problem, the authors apply the separation of variables method, associated with the Bessel’s equation and Bessel’s expansion.

    pdf18p vicross2711 20-06-2019 4 0   Download

  • Angiotensin-converting enzyme (ACE) plays a central role in blood pressure regulation by producing the vasoconstrictor angiotensin II. The inhibition of ACE with natural inhibitors, as alternatives to avoid the side effect of synthetic drugs, is a major target in the prevention of hypertension. In this study, we examined the separated caseins and whey proteins of goat milk for the presence of ACE inhibitory peptides.

    pdf9p kequaidan1 16-11-2019 8 0   Download

  • Nepal has a fairly high adolescent fertility rate and low use of contraception. Lack of contraceptive use is a major contributor to the high rates of unintended pregnancies amongst youth. There is also lack of specific studies dealing with contraceptive behavior among young married women. This study examines the use and determinants of contraceptive methods over the time period of 15 years (2001-2016) among young women in Nepal. Trend and bi-vatiate analysis of this study is based on the Nepal Demographic and Health Survey (NDHS), 2001, 2006, 2011 and 2016 data.

    pdf22p nguathienthan1 24-11-2019 10 0   Download

  • Three separate experiments were carried out to assess combined effects of temperature and salinity and induced stress on blood variables of Tra catfish (Pangasianodon hypophthalmus) fingerlings. Some hematological parameters included Haemoglobin concentration, glucose and pH levels which were tested in different conditions. The experiment 1 aimed to test how blood variables change in different temperature (24, 28-30, 32 oC) and salinity (0, 6 and 12 ppt) while the experiment 2 induced catfish fingerlings to different stress time (5, 15 and 30 min.).

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  • Performance evaluation of tractor drawn turmeric digger was studied by conducting experiments on a test set-up having provision to vary design variables. The test set-up consists of digging unit and soil separation unit. Three digging blades are selected i.e. Strips shape, Inverted 'V' shape and Crescent shape for digger machine for comparing on field test. The design parameters - soil moisture content, rake angle of digging unit and speed of operation of digger machine were evaluated.

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  • Tomato leaf curl virus (ToLCV) has become a major threat of Tomato (Solanum lycopersicum) production in the world including tropical and subtropical tomato growing regions due to its the endemic presence. The aim of this study is to develop a forewarning strategy for the farmers. The components included in the experiment were, a susceptible tomato variety “Patharkuchi” planted at 15 days interval starting from16th August to 29th December during both the experimental year 2012-13 and 2013-14 under field condition.

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  • During various Capripox outbreaks in Jammu region, either sheep or goats were found to be affected separately by the disease showing the characteristic cutaneous lesions. Even when both sheep and goats were reared together, the disease was restricted to either host only. Clinical scab samples obtained from both sheep and goats were designated as putative Sheep poxvirus (SPPV) and Goatpoxvirus (GTPV). The isolates were processed and inoculated on the chorioallantoic membrane (CAM) of chicken embryonated eggs (CEE) to study the growth characteristics of the isolates.

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  • Low back pain (LBP) is common in children and adolescents, and it is becoming a public health concern. In recent years there has been a considerable increase in research studies that examine the prevalence of LBP in this population, but studies exhibit great variability in the prevalence rates reported.

    pdf12p vivalanbo2711 19-03-2020 4 0   Download

  • The demand of fresh item is declining with time exponentially (because no item can always sustain top place in the list of consumers’ choice practically e.g. FMCG). Shortages are allowed and backlogged, partially. Conditions for global optimality and uniqueness of the solutions are derived, separately. The results of some numerical instances are analyzed under various conditions.

    pdf16p toritori 11-05-2020 5 0   Download



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