To Software Implementation of Sharapov's Analytical Method for Estimating the Parameters of a Frequency Mixture without Combination Frequencies and Solving Optimization Problem

Author(s):  
I. M. Lerner ◽  
R. R. Fayzullin ◽  
E. R. Falakhieva ◽  
N. Pankratov ◽  
V.I. Il'in
2021 ◽  
Vol 9 (5) ◽  
pp. 596-601
Author(s):  
M. Chumburidze ◽  
◽  
G. Chachua ◽  
T. Sakhelashvili ◽  
E. Bitsadze ◽  
...  

In this article optimization problem of product delivery problems in modern business has been investigated.Desition-making problems to manage network sales strategy is solved.The dynamical model of multistage graph has been constructed. The algorithms to find optimal plan of products salsment is performed. The tools applied in this development based on the generalized dynamical programming methods and graph theory applications.Javascript programming language for software implementation is used.


2020 ◽  
Vol 8 (3) ◽  
pp. 51-57
Author(s):  
Vladimir Kulikov ◽  
Vladimir Khokhlov ◽  
Z Titova ◽  
O. Galonen

The paper considers aspects of the development of algorithms for optimizing complex systems. The principles of constructing procedures for adjusting the parameters of variable gradient optimization algorithms are proposed. In any iterative algorithm, there are parameters that require their adjustment. To control and adjust parameters, - criteria are formed that determine the quality of adjustments. The problem of determining the best value of adjustment parameters belongs to the same class as the original optimization problem. During the operation of algorithms, their parameters are adapted to the original values. The paper provides recommendations for software implementation of probabilistic algorithms and construction of computational procedures for probabilistic computational experiments based on them.


Author(s):  
John A. Trotter

Hemoglobin is the specific protein of red blood cells. Those cells in which hemoglobin synthesis is initiated are the earliest cells that can presently be considered to be committed to erythropoiesis. In order to identify such early cells electron microscopically, we have made use of the peroxidatic activity of hemoglobin by reacting the marrow of erythropoietically stimulated guinea pigs with diaminobenzidine (DAB). The reaction product appeared as a diffuse and amorphous electron opacity throughout the cytoplasm of reactive cells. The detection of small density increases of such a diffuse nature required an analytical method more sensitive and reliable than the visual examination of micrographs. A procedure was therefore devised for the evaluation of micrographs (negatives) with a densitometer (Weston Photographic Analyzer).


Author(s):  
P. Echlin ◽  
M. McKoon ◽  
E.S. Taylor ◽  
C.E. Thomas ◽  
K.L. Maloney ◽  
...  

Although sections of frozen salt solutions have been used as standards for x-ray microanalysis, such solutions are less useful when analysed in the bulk form. They are poor thermal and electrical conductors and severe phase separation occurs during the cooling process. Following a suggestion by Whitecross et al we have made up a series of salt solutions containing a small amount of graphite to improve the sample conductivity. In addition, we have incorporated a polymer to ensure the formation of microcrystalline ice and a consequent homogenity of salt dispersion within the frozen matrix. The mixtures have been used to standardize the analytical procedures applied to frozen hydrated bulk specimens based on the peak/background analytical method and to measure the absolute concentration of elements in developing roots.


Planta Medica ◽  
2008 ◽  
Vol 74 (09) ◽  
Author(s):  
K Miyagi ◽  
T Fujise ◽  
N Koga ◽  
K Wada ◽  
M Yano ◽  
...  

Author(s):  
Jianqi Li ◽  
Yu Zhou ◽  
Jianying Li

This paper presented a novel analytical method for calculating magnetic field in the slotted air gap of spoke-type permanent-magnet machines using conformal mapping. Firstly, flux density without slots and complex relative air-gap permeance of slotted air gap are derived from conformal transformation separately. Secondly, they are combined in order to obtain normalized flux density taking account into the slots effect. The finite element (FE) results confirmed the validity of the analytical method for predicting magnetic field and back electromotive force (BEMF) in the slotted air gap of spoke-type permanent-magnet machines. In comparison with FE result, the analytical solution yields higher peak value of cogging torque.


TAPPI Journal ◽  
2019 ◽  
Vol 18 (10) ◽  
pp. 607-618
Author(s):  
JÉSSICA MOREIRA ◽  
BRUNO LACERDA DE OLIVEIRA CAMPOS ◽  
ESLY FERREIRA DA COSTA JUNIOR ◽  
ANDRÉA OLIVEIRA SOUZA DA COSTA

The multiple effect evaporator (MEE) is an energy intensive step in the kraft pulping process. The exergetic analysis can be useful for locating irreversibilities in the process and pointing out which equipment is less efficient, and it could also be the object of optimization studies. In the present work, each evaporator of a real kraft system has been individually described using mass balance and thermodynamics principles (the first and the second laws). Real data from a kraft MEE were collected from a Brazilian plant and were used for the estimation of heat transfer coefficients in a nonlinear optimization problem, as well as for the validation of the model. An exergetic analysis was made for each effect individually, which resulted in effects 1A and 1B being the least efficient, and therefore having the greatest potential for improvement. A sensibility analysis was also performed, showing that steam temperature and liquor input flow rate are sensible parameters.


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